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Idle Mode and Common

Channel BehaviorWCDMA RAN

Feature Guide

Operator Logo



Idle Mode and Common Channel Behavior Feature Guide

II © 2010 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary

TABLE OF CONTENTS

1

Functional Attribute ............................................................................................ 1

2 Overview .............................................................................................................. 1

2.1 Function Introduction ............................................................................................ 1

2.1.1 PLMN Selection .................................................................................................... 1

2.1.2 Cell Selection and Reselection ............................................................................. 1

2.1.3 Location Area Update ........................................................................................... 2

2.1.4 Routing Area Update ............................................................................................ 2

2.1.5 URA Update .......................................................................................................... 2

2.1.6 Cell Update ........................................................................................................... 3

2.1.7 Random Access Process of PRACH.................................................................... 4

3

Technical Description......................................................................................... 4

3.1 Strategy of PLMN Selection.................................................................................. 4

3.1.1 Support for PLMN Selection ................................................................................. 5

3.1.2 PLMN Selection at Switch-on ............................................................................... 5

3.1.3 Automatic PLMN Selection Mode ......................................................................... 6

3.1.4 Manual PLMN Selection Mode ............................................................................. 7

3.1.5 Roaming ................................................................................................................ 7

3.2 Strategy of Cell Selection and Reselection .......................................................... 8

3.2.1 States and State Transitions in Idle Mode............................................................ 8

3.2.2 Cell Selection Process ........................................................................................ 11

3.2.3 Camped Normally State...................................................................................... 13

3.2.4 Rules of Cell Reselection Measurement ............................................................ 13

3.2.5

Cell Selection When Leaving Connected Mode ................................................. 27

3.2.6 Any Cell Selection State ..................................................................................... 28

3.2.7 Camped on Any Cell State ................................................................................. 28

3.2.8 Cell Reservations and Access Restrictions........................................................ 28

3.2.9 Cell Reselection Process in RRC Connected Mode .......................................... 31

3.2.10 Parameters and Configuration for Cell Selection and Reselection.................... 31

3.2.11 SIB11bis usage ................................................................................................... 31

3.3 Strategy of LA and RA Update ........................................................................... 31

3.3.1 LA and RA Structure ........................................................................................... 32

3.3.2 Normal LA and RA Updating .............................................................................. 32

3.3.3 Periodic LA and RA Updating ............................................................................. 32

3.3.4

IMSI Attach/Detach ............................................................................................. 32 3.4 Strategy of URA Update ..................................................................................... 33

3.4.1 Process of URA Update...................................................................................... 33

3.5 Strategy of CELL Update .................................................................................... 34

3.5.1 Process of CELL Update .................................................................................... 35

3.6 Random Access Process of PRACH.................................................................. 36

3.6.1 PRACH Structure ................................................................................................ 36

3.6.2 Preamble Part ..................................................................................................... 36

3.6.3 Message Part ...................................................................................................... 36

3.6.4 Random Access Process of Physical Layer....................................................... 39

3.6.5 Random Access Process of the MAC Layer ...................................................... 43




ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 1

1 Functional Attribute

System version: [RNC V3.09, OMMR V3.09, Node B V4.09, OMMB V4.09]

Property: [Optional]

Related Network Element:

UE NodeB RNC MSCS MGW SGSN GGSN HLR

√ √ √ - - - - -

Note:

*-: not involved.

*: involved.

Dependent Function: [None]

Remarks: [None]

Remarks: [None]

2 Overview

2.1 Function Introduction

This article introduces the strategies of PLMN selection, cell selection/reselection,

location area update, routing area update, URA update and cell update, as well as the

random access process of PRACH.

2.1.1 PLMN Selection

The UE will select a PLMN when it registers at power-on or re-registers in „out of service‟

conditions. In addition, the UE can make periodic PLMN selection.

2.1.2 Cell Selection and Reselection

The UE will select an initial cell at power-on or in „out of service‟ conditions.

When the UE moves in the IDLE mode, in state URA_PCH or CELL_FACH, it needs to

change the cell that it camps on through the cell reselection strategy.



ZTE UMTS Idle Mode and Common Channel Behavior Feature Guide

2 © 2010 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary

2.1.3 Location Area Update

The location area (LA) refers to a range where the mobile station can move freely

without update of VLR. The location area identity (LAI) is made up of MCC+MNC+LAC.

LAC is the location area code. For the CS domain service, the CN uses the LA to

identify the UE (in the RRC-IDLE mode, the network uses a CN-related identity to

identify the UE). One LA may cover one or more cells. When several CNs share a VLR,

the LA may cover several CNs. One CN area may include one or more LAs. That is, the

CN may include an MSC area, and an MSC area may also include the LA.

If the LA that the UE camps on changes when the UE is moving, the CN should be

notified of the change through LA update.

In addition, the UE can update the LA periodically.

2.1.4 Routing Area Update

The routing area (RA) is defined as a range where the mobile station can move freely

without update of SGSN. An RA is made up of one or more cells. It is used to indicate

the location information of the mobile station in the SGSN when the mobile station is in

idle state. The RAs are classified by the mobile data traffic distribution, traffic volume

and the processing capability of the SGSN as well. The routing area identity

(RAI)=MCC+MNC+LAC+RAC, where RAC is the routing area code that uniquely

identifies an RA inside a LA. For the PS domain service, the CN uses the RA to identify

the UE (in the RRC-IDLE mode, the network uses the CN-related identity related with

the CN to identify the UE). The relation between LA and RA as defined for the GSM

network is still applicable: RA=LA, or RA is always included in the LA (a subset of LA). In

addition, the RA may cover several RNC areas but not several SGSN areas, that is, one

RA can be controlled by only one CN service node.

If the LA or RA that the UE camps on changes when the UE is moving, the CN should

be notified of the change through RA update.

In addition, the UE can update the RA periodically.

2.1.5 URA Update

The URA is a combination of a group of cells and at the same time, a cell may belong to

several URAs. The URA is visible only inside the UTRAN (including UE). The area

update inside the UTRAN is a radio network process and its structure is not visible from

outside the UTRAN. The URA stands no fixed relation with the LA and is not related with

the RA either.

In state URA_PCH, the procedure URA Update is used to keep RAN informed about the

UEs location on a URA level.





The UE in state RA_PCH will trigger the URA update with the reason of “change of

URA” in the following cases:

If the cell that the UE camps on is in a different URA area from that of the original

cell that the UE camps on.

The list of URA ID in SIB2 is empty.

The SIB2 information is not received.

Besides, the UE in state URA_PCH will trigger the periodic URA update with the reasonof “periodic URA update ” if the preceding LA update condition is not satisfied but the

following conditions are satisfied.

The timer T305 in the IE “UE Timers and constants in connected mode" set to any

other value than " is set to non “infinity” and T305 expires.

If the UE does not support HS-DSCH reception but receives the IE "HS-DSCH

paging system information", the IE is not saved currently, and also the 12 -bit MSBs

(high 12 bits) of U_RNTI in "SRNC does not equal to the 12-bit MSBs of "Cell

identity" in SIB3.

2.1.6 Cell Update

The Cell update means that the UE notifies the RAN of the UE location on a cell level.

The UE will trigger the cell update in the following cases:

Reselection of cell in state CELL_FACH

Radio link failure in state CELL_DCH

T305 periodic cell update.

In state CELL_FACH, the UE returns from the uncovered area to the covered area

and performs periodic cell update.

In state URA_PCH, the UE transmits data on uplink

In state URA_PCH, paging is responded.

In state URA_PCH/CELL_FACH, MBMS p-t-p RB request is sent.

The UE is in paging URA_PCH state on the network side (can be originated by the

UTRAN or CN)

The UE in state CELL_FACH/CELL_DCH detects the RLC unrecoverable error

of the AM RLC entity.





MBMS Counting in state URA_PCH/CELL_FACH

2.1.7 Random Access Process of PRACH

PRACH is the access channel for the UE to originate a call. It includes two parts: the

physical layer random access process and MAC layer random access process.

3 Technical Description

Figure 3-1 shows the flow that the UE registers upon switch-on or re-registers after

leaving connected mode. Processes involved are: PLMN selection, cell selection and

reselection, LA registration and update and RA registration and update.

Figure 3-1 UE Registers upon Switch-on or Re-registers after Leaving ConnectedMode

In addition, the UE supports periodic LA and RA update to notify the network of the real-

time camping information. In state URA_PCH/CELL_FACH, the UE triggers URA/CELL

update for a service reason. In cases of service setup, the paging process and PRACH

random access process are needed. The processes are introduced in this chapter.

3.1 Strategy of PLMN Selection

The UE maintains a list of allowed PLMN types (SIM/USIM information). The allowed

PLMN type can be GSM-MAP only, ANSI-41 only or both. During PLMN selection and

reselection, based on the list of allowed PLMN types and a list of PLMN identities in

priority order, the particular PLMN may be selected either automatically or manually.

Each PLMN in the list of PLMN identities can be identified by either “PLMN identity” (GSM-MAP) or “SID” (ANSI-41). In the system information on the broadcast channel, the





UE can receive several “PLMN identities”: a “PLMN identity” (GSM-MAP) or a “SID” or a

'PLMN identity ' (GSM-MAP) and a 'SID', in a given cell.

The result of the PLMN selection is an identifier of the selected PLMN, the choice being

based on the allowed PLMN types, UE capability or other factors.

3.1.1 Support for PLMN Selection

The UE will select a PLMN when it registers at power-on or re-registers after leavingconnected mode. In addition, the UE can make periodic PLMN selection.

The PLMN selection is originated at a NAS. On request of the NAS, the AS searches for

available PLMN and reports the result to the NAS. The NAS based on the information

reported by the AS and the allowed PLMN information in SIM/USIM determines which

PLMN will be selected finally.

The UE scans all RF channels in the UTRA/GSM bands according to its capabilities to

find available PLMNs. On each carrier, the UE shall search for the strongest cell and

read its system information, in order to find out which PLMN the cell belongs to. If the

UE can read one or several PLMN identities in the strongest cell, each found PLMN will

be reported to the NAS as a high quality PLMN, provided that the following high quality

criterion is fulfilled.

1 For an FDD cell, the measured primary CPICH RSCP value is greater than or equal

to -95 dBm.

2 For an TDD cell,the measured primary CCPCH RSCP value is greater than or equal

to -84dBm.

Found PLMNs that do not satisfy the high quality criterion, but for which the UE has

been able to read the PLMN identities are reported to the NAS as other PLMNs in order

of decreasing CPICH RSCP for UTRA FDD cells, or in order of decreasing P-CCPCH

RSCP for UTRA TDD cells.

The search for PLMNs on the carriers may be stopped on request of the NAS. The UE

may optimize this search by using stored information of carrier frequencies and

optionally also information on cell parameters, e.g. scrambling codes, from previously

received measurement control information elements.

Once the UE has selected a PLMN, the cell selection procedure will be performed in

order to select a suitable cell of that PLMN to camp on.

3.1.2 PLMN Selection at Switch-on

Whenever a UE is switched on or re-registers after leaving connected mode, it attempts

to camp on the last registered PLMN or equivalent PLMN, if available. To speed up the

PLMN selection procedure, the UE first tries the stored information cell selection





procedure (refer to 3.2.2.2 “Stored Information cell selection“), and read system

information of corresponding cell to obtain the PLMN ID (PLMN ID comprises MCC and

MNC). Then the UE decides whether the chosen cell is acceptable or whether at least

one acceptable cell belonging to that PLMN exists. If the decision is that the PLMN is

available, the UE attempts registration on the PLMN. If the last registered PLMN is

unavailable, the process of PLMN registration with stored information is finished and

automatic or manual PLMN selection will be attempted.

If there is no registered PLMN stored in the USIM, the UE selects and attempts

registration on other PLMNs using either the Automatic mode or the Manual mode.

3.1.3 Automatic PLMN Selection Mode

The Automatic PLMN selection mode is described in Figure 2 In Automatic mode, if no

last registered PLMN exists or is available, the UE will select a PLMN that is available

and allowed, in the following order:

1 Home PLMN (HPLMN), if not previously selected, according to the Radio Access

Technologies (RATs) supported by the UE.

2 Each PLMN in the user-controlled PLMNs list in the USIM, if present, in order of

priority, according to the RATs supported by the UE.

3 Each PLMN in the operator -controlled PLMNs list in the USIM, in order of priority,

according to the RATs supported by the UE.

4 Other PLMNs, according to the high -quality criterion, in random order.

5 Other PLMNs that do not fulfill high-quality criterion, in order of decreasing signal

strength (SS).

PLMNs are considered high quality if the Received Signal Strength Code Power (RSCP)

on the PCPICH fulfills the high-quality criterion (for FDD, the PCPICH RSCP level is

greater than or equal to –95 dBm and for GSM, the signal level is above -85 dBm).

A PLMN with at least one acceptable cell is considered available. If that PLMN is

allowed, the UE tries to register on it. If registration is successful, the UE displays theselected PLMN.

When the UE cannot register on any PLMN in the user and operator lists, it attempts to

register on other PLMNs according to the high -quality criterion.

If the UE cannot register on any PLMN, it selects an available PLMN and enters a

limited service state. If it does not find an available PLMN, the UE enters the non-service

state, and waits until a new PLMN is available and allowed.





Figure 3-2 PLMN Selection-Automatic Mode

3.1.4 Manual PLMN Selection Mode

The Manual mode allows the user to select a PLMN among those indicated by the UE.

The UE displays all PLMNs that it finds by scanning all frequency carriers. The UE

displays those PLMNs that are allowed as well as those that are not allowed. The user

makes a manual selection, according to the available access technology for the chosen

PLMN, and the UE attempts registration on this PLMN, ignoring the contents of the

forbidden Location Area Identities (LAIs) and PLMN lists. If the user selects an available

PLMN in the forbidden PLMN list, the UE attempts to register and may receive a positive

acknowledgement from the CN. In this case, the PLMN is removed from the forbidden

list.

If the user does not select a PLMN, the selected PLMN is the one that was selected

before the PLMN selection procedure started. If this PLMN is no longer available, the UE

attempts to camp on an acceptable cell at any PLMN and enters the limited service state.

The UE remains in that state until it is switched off or the user makes a manual PLMN

reselection.

3.1.5 Roaming

Roaming is a service through which a UE is able to obtain services from another PLMN

(Visited PLMN) than the HPLMN. The behavior that the UE must follow is specified by





agreements among the network operators. A UE in Automatic mode, having selected

and registered on a Visited PLMN (VPLMN), periodically attempts to return to its HPLMN.

The time interval between consecutive attempts is stored in the USIM and is managed

by the network operator using a timer(The timer may have a value of between 6

minutes and 8 hours, with a step size of 6 minutes ). In the absence of a fixed

value, a default value of 30 minutes is used by the UE.

3.2 Strategy of Cell Selection and Reselection

Different types of measurements are used in different RATs and modes for the cell

selection and reselection.

The NAS can control the RAT(s) in which the cell selection should be performed, for

instance by indicating RAT(s) associated with the selected PLMN, and by maintaining a

list of forbidden registration area(s) and a list of NAS-specified service area in priority

order. The UE will select a suitable cell and the radio access mode based on

measurements and cell selection criteria.

In order to speed up the cell selection process, stored information for several RATs maybe available in the UE.

When camped on a cell, the UE will regularly search for a better cell according to the cell

reselection criteria. If a better cell is found, that cell is selected. The change of cell may

imply a change of RAT (that is, cell reselection between different systems).

For normal service, the UE has to camp on a suitable cell, tune to that cell's controlchannel(s) so that the UE can:

Receive system information from the PLMN;

Receive registration area information from the PLMN, e.g., location area and

routing area; and

Identify to which service area as specified by NAS that the serving cell belongs.

Receive other AS and NAS Information;

Receive paging and notification messages from the PLMN; and

Initiate call setup for outgoing calls or other actions from the UE.

3.2.1 States and State Transitions in Idle Mode

Figure 3-3 shows the states and procedures of cell selection and reselection in Idle

Mode.





Figure 3-3 Idle Mode Cell Selection and Reselection

InitialCell Selection

Any CellSelection

go herewhen noUSIM inthe UE

USIM inserted

Camped on

any cell

go here whenever anew PLMN is

selected

1no cell information

stored for the PLMNcell information

stored for the PLMN

Storedinformation

Cell Selection

no suitable cell found

no suitablecell found

Cell Selectionwhen leaving

connectedmode

suitable cell found 2

suitablecell found

Campednormally

suitable cell found


leaveidle mode

return toidle mode

Connectedmode

CellReselectionEvaluationProcess

suitablecell found

trigger


1

Cell Selectionwhen leaving

connectedmode

no acceptable cell found

acceptablecell found

acceptable

cell found

suitablecell found 2

leaveidle mode

return toidle mode

Connectedmode

(Emergencycalls only)

CellReselectionEvaluationProcess

acceptablecell found

trigger

no acceptablecell found

NAS indicates thatregistration on selected

PLMN is rejected(except with cause #14

or #15 [5][16])

In any state, a new PLMN selection causes an exit to number 1

3.2.1.1 Cell selection process overview

Whenever a PLMN has been selected by NAS, the UE will attempt to find a suitable cell

to camp on. The NAS may control the cell selection by:

Providing information on RAT(s) associated with the selected PLMN;





Maintaining lists of forbidden registration areas;

Providing a list of equivalent PLMNs.

One or several RATs may be associated with the selected PLMN. It depends on the UE

capability and PLMN plan.

The AS will attempt to find a suitable cell to camp on as specified in Section 3.2.2.

If a suitable cell is found, the UE will select this cell to camp on, and report this event to

NAS so that the necessary NAS registration procedures can be performed. When the

registration is successful, the UE enters in state Camped normally in order to obtain

normal service.

If the UE is unable to find any suitable cell of selected PLMN the UE will enter the Any

cell selection state and perform action of 3.2.6 “ Any Cell Selection State“.

3.2.1.2 Camped normally state overview

In this state, the UE obtains normal service and performs the tasks specified in 3.2.3.

If after a Cell reselection evaluation process a better cell is found, the Cell reselection

procedure is performed. If no suitable cell is found, the UE will enter the state Any cell

selection.

When UE leaves idle mode in order to enter the state Connected mode, the UE shallattempt to access the current serving cell. If the access attempt to the serving cell fails,

the UE will use the Cell reselection evaluation procedure.

3.2.1.3 Connected mode state overview

When returning to idle mode, the UE shall use the procedure Cell selection when leaving

connected mode in order to find a suitable cell to camp on and enter state Camped

normally . If a suitable cell is found, then the UE reports this event to NAS to be capable

to perform necessary NAS registration procedures. If no suitable cell is found, the Stored

information cell selection procedure will be used by the UE.

If no suitable cell is found in cell reselection evaluation process, the UE enters the state

Any cell selection.

3.2.1.4 Any cell selection state overview

The state Any cell selection is also entered if the NAS indicates that a location

registration is rejected or there is no SIM/USIM in the UE. In this state the UE will

behave as specified in Section 3.2.6 “ Any Cell Selection State“FF





If an acceptable cell is found, the UE will inform the NAS and camp on this cell and

obtain limited service, state Camped on any cell .

3.2.1.5 Camped on any cell state overview

In this state the UE obtains limited service. The UE will regularly attempt to find a

suitable cell, trying all RATs that are supported by the UE. If a suitable cell is found, this

causes an exit to number 2 in Figure 3, to perform the procedure as specified in Section

3.2.1.2 “Camped normally state overview“.

NOTE: The 'PLMN selection and reselection' process may select a new PLMN at any

time in idle mode, which in Figure 3 causes an exit to number 1, perform initial cell

selection procedure (refer to Section 3.2.1.1 “Cell selection process overview“).

3.2.2 Cell Selection Process

The UE will use one of the following two search procedures:

3.2.2.1 Initial cell selection

This procedure requires no prior knowledge of which RF channels are UTRA carriers.

The UE will scan all RF channels in the UTRA/GSM bands to find a suitable cell in the

chosen PLMN. On each carrier, the UE need only search for the strongest cell. Once a

suitable cell is found this cell shall be selected.

3.2.2.2 Stored Information cell selection

This procedure requires stored information of carrier frequencies and optionally also

information on cell parameters, e.g. scrambling codes, from previously received

measurement control information elements. Once the UE has found a suitable cell the

UE shall select it. If no suitable cell is found the Initial cell selection procedure will be

started.

3.2.2.3 Cell selection criteria

The cell selection criterion S is fulfilled when:

for FDD cells: Srxlev > 0 AND Squal > 0

for TDD cells: Srxlev > 0

Where,





Squal = Qqualmeas – (Qqualmin + QqualminOffset)

Srxlev = Qrxlevmeas – (Qrxlevmin + QrxlevminOffset) – Pcompensation

Qqualmeas: Measured cell quality value. Applicable only for FDD cells. The quality of

the received signal expressed in CPICH Ec/N0 (dB).

Qrxlevmeas: Measured cell RX level value. This is received signal, CPICH RSCP for

FDD cells (dBm), P-CCPCH RSCP for TDD cells (dBm) and RXLEV for GSM cells

(dBm).

Qqualmin: Minimum required quality level in the cell (dB). Applicable only for FDD cells.

（For serving cell: the parameter is indicated by Qqualmin; for neighbouring cell with

absolute priority configuration, the parameter is indicated by QqualminFDD.）

Qrxlevmin: Minimum required RX level in the cell (dBm). (For serving cell: If

DltaQRxLevMin is broadcast, then Qrxlevmin =QrxLevMin+DltaQRxLevMin. If

DltaQRxLevMin is not broadcast, then Qrxlevmin +QRxLevMin. Whether to broadcast

DltaQRxLevMin or not is controlled by DltaQRxLevMinPr. For neighbor cell: In Idle mode

or SIB12 is not broadcast, if DtQrxLvMnSib11 is not broadcast, then Qrxlevmin

=QrxLevMin. In Idle mode or SIB12 is not broadcast, if DtQrxLvMnSib11 is broadcast,

then Qrxlevmin =QrxLevMin+DtQrxLvMnSib11. In connected mode and SIB12 is

broadcast, if DtQrxLvMnSib12 is not broadcast, then Qrxlevmin =QRxLevMin. If

DtQrxLvMnSib12 is broadcast, then Qrxlevmin =QrxLevMin+DtQrxLvMnSib12 . Whether

to broadcast DtQrxLvMnSib11 or not is controlled by DtQrxLvMnSib11Pr . Whether to

broadcast DtQrxLvMnSib12 or not is controlled by DtQrxLvMnSib12Pr . For neighbor cell

with absolute priority configuration, the parameters for UTRAN/GSM/EUTRAN are

independently indicated by QrxlevminFDD/QrxlevminGSM/QrxlevminEUTRA )

Notes: Whether to broadcast SIB12 is controlled by SIB12Ind

QqualminOffset(QqualminOffset ): Offset to the signalled Qqualmin taken into account inthe Squal evaluation. The parameter is available only for FDD cells and SIB3. Whetherto broadcast QqualminOffset is controlled by parameter QqulmnOffstPre.

QrxlevminOffset(QrxlevminOffset ): Offset to the signalled Qrxlevmin taken into accountin the Srxlev evaluation. The parameter is available only for SIB3. Whether to broadcastQrxlevminOffset is controlled by parameter QrxlvmnOffstPre.

Pcompensation＝ max(UE_TXPWR_MAX_RACH – P_MAX, 0)

UE_TXPWR_MAX_RACH: Maximum TX power level MaxRACHTxPwr on RACH (read

in system information) (dBm) (for cells under the RNC, it is the max value of

MaxRACHTxPw r (Prach); for cells under other RNC, it is the value of MaxRACHTxPwr

(externalUtranCell)).





P_MAX: Maximum RF output power of the UE (dBm)

3.2.3 Camped Normally State

When camped normally, the UE will perform the following tasks:

Select and monitor the indicated PICH and PCH of the cell according to information

sent in system information;

Monitor relevant system information.

Perform necessary measurements for the cell reselection evaluation procedure.

Execute the cell reselection evaluation process.

3.2.4 Rules of Cell Reselection Measurement

Different rules apply for cell reselection measurement when HCS is used and when HCS

is not used.

3.2.4.1 Measurement rules for cell re-selection when HCS is not used

When the serving cell does not use HCS (UseOfHCS(utranCell) ), the measurement

rules for cell reselection are:

In the following rules, the UE uses Squal for FDD cells and Srxlev for TDD cells for Sx:

1 If Sx > SIntraSearch, UE may choose to not perform intra-frequency measurements.

If Sx <= Sintrasearch, UE performs intra-frequency measurements.

If Sintrasearch, is not sent, UE performs intra-frequency measurements. Whether

to broadcast Sintrasearch or not is controlled by SintrasearchPre.

2 The UE may choose to not perform inter-frequency measurements when the

following condit ions are satisfied:

MBMS preferred frequency layer is not configured (FreqPLInd ), or MBMS

preferred frequency layer is configured but the current serving cell belongs to

the MBMS preferred frequency layer.

Sx> Sintersearch

If SsearchHCS is broadcast and Srxlev > SsearchHCS





The UE needs to perform inter-frequency measurements at least for the MBMS

preferred frequency layer when the following conditions are satisfied:

MBMS preferred frequency layer is configured and the current serving cell

does not belong to the MBMS preferred frequency layer.

Sx > Sintersearch

If SsearchHCS is broadcast and Srxlev > SsearchHCS.

The UE needs to perform inter-frequency measurements when any one of the

following conditions is satisfied:

Sx <= Sintersearch

IF SsearchHCS is broadcast and Srxlev <= SsearchHCS.

If SinterSearch is not broadcast, the UE performs inter-frequency measurement.

Whether to broadcast SinterSearch or not is controlled by SInterSearchPre.

3 If Sx > SSearchRat , UE does not need to measure quality of inter-RAT neighbor

cells.

If Sx <= SSearchRat, the UE performs inter-RAT cell quality measurement.

If SsearchRat is not broadcast, the UE performs inter -RAT neighbor cell

quality measurement. Whether to broadcast SsearchRat or not is controlled byOtherRATInfoPre.

If HCS is not used and the UE receives SLimitRat, the UE will ignore the

parameter.

3.2.4.2 High mobility state when HCS is not used

In non-HCS environment, if the parameters NoHcsTCrMax , NoHcsNCr and

NoHcsTCrMaxHyst are sent on the system information broadcast, it is necessary to start

the UE high mobility state detection mechanism so that the cell reselection criteriadecision can be made with the reselection timer multiplied by the scaling factor or not.

If in non-HCS environment the number of cell reselections during time period

NoHcsT CR M ax exceeds NoHcsNC r , or if the network (via RRC release, RB re-

configuration) has ordered the UE to consider itself to be in high-mobility state, then

high-mobility state is triggered.

When the number of cell reselections during time period NoHcsT CR M ax no longer

exceeds NoHcsNC r , the UE will:

Continue in high-mobility state.





If the number of cell reselect ions during time period NoHcsT CR Hyst does not

exceed NoHcsNC r and also the network does not order the UE to stay in high-

mobility state, then the UE exits high-mobility state.

3.2.4.3 Measurement rules for cell re-selection when HCS is used

When the serving cell uses HCS (UseOfHCS ( utranCell) ), the measurement rules of cell

reselection are:

IF an MBMS PL (preferred layer) is used then,

If the UE is in HCS low mobility state, for serving cell and neighbour cells belonging

to the MBMS PL set the HCS priority = HcsPrio + HcsOffMbms .

If the UE is in HCS high mobility state, for serving cell and neighbour cellsbelonging to the MBMS PL set the HCS priority = HcsPrio.

For serving cell and neighbour cells not belonging to the MBMS PL, set the HCS

priority = HcsPrio

IF an MBMS PL is not used, then HCS priority = HcsPrio

Where: HcsPrio is the parameters configured by cells. The HcsPrio of the current RNC

cell takes the value of HcsPrio (utranCell). The HcsPrio of the neighbor RNC cell takes

the value of HcsPrio (externalUtranCell). The HcsPrio of the GSM cell takes the value of

(externalGsmCell).

In the following rules, the UE uses Squal for FDD cells and Srxlev for TDD cells for Sx:

1 For intra-frequency and inter-frequency measurement rules for UEs not in high-

mobility

IF (Srxlev <= SsearchHCS ) or (if FDD and Sx <= Sintersearch) THEN

<UE measure on all intra-frequency and inter-frequency cells.>

ELSE

IF (Sx > Sintrasearch) THEN

< UE measure on all intra-frequency and inter-frequency cells, which have

higher HCS priority level than the serving cell. >

ELSE

<UE measure on all intra-frequency and inter-frequency cells, which have

equal or higher HCS priority level than the serving cell >





ENDIF

IF Sintrasearch is not sent for the serving cell, THEN

<UE measure on all intra-frequency cells. Fast-moving UEs may also use this

rule. UE measure on all inter-frequency cells, which have higher HCS priority level

than the serving cell unless measurement rules for fast-moving UEs are triggered.>

ENDIF

ENDIF

Whether to broadcast Sintrasearch or not is controlled by SintraSearchPre.

If HCS(UseOfHCS (utranCell)) is used and if SsearchHCS or Sintersearch (FDD) is

not sent for the serving cell, UE will measure on all intra-frequency and inter-frequency cells. Whether to broadcast SsearchHCS or not is controlled by

SSearchHCSPre. Whether to broadcast SinterSearch or not is controlled by

SInterSearchPre.

2 For intra-frequency and inter-frequency measurement rules for fast-moving UEs:

This measurement rule applies when the HCS is used and the UE is in fast-moving

state and also the UE receives the broadcast message of NoHcsTCrMax ,

NoHcsNCr and NoHcsTCrMaxHyst .

If the number of cell reselections during time period TCrMax exceeds NCr , or if thenetwork (via signaling of RRC release, RB re-configuration) has ordered the UE to

consider itself in high mobility state, the UE is triggered to enter fast-moving state.

In this high-mobility state, UE will

IF(Srxlevs <= SsearchHCS) or (if FDD and Sx <= Sintersearch) or SsearchHCS or

Sintersearch (FDD) are not sent, THEN

<UE measure on all intra-frequency and inter-frequency cells.>

ELSE

<UE measure intra-frequency and inter-frequency neighbour cells, which have

equal or lower HCS priority than serving cell. >

ENDIF

When the number of cell reselections during time period TCRmax no longer

exceeds NCr , the UE will:

UE continues in high-mobility state.





If the number of cell reselections during time period TCrmaxHyst does not

exceed NCr and also the network does not order the UE to stay in high-

mobility state, then the UE exits high-mobility state.

When serving cell belongs to a hierarchical cell structure, the UE will follow these rules

for Inter-RAT measurements:

The UE uses Squal for FDD cells and Srxlev for TDD cells for Sx in the following rules.

3 Inter-system threshold-based measurement rules for UEs not in high-mobility

IF (Srxlevs <= SHCSRat ) or (if FDD and Squal <= SSearchRat ) THEN

<UE measure on all neighbouring cells of other RAT >

ELSE

IF (Sx > SLimitRat ) THEN

<UE may choose not to perform inter-RAT measurement>

ELSE

< UE measure on all neighbouring cells between systems, which have equal

or higher HCS priority level than the serving cell. >

ENDIF

ENDIF

If HCS is used and i f SHCSRat is not sent for the serving cell, the UE will measure

on all inter-RAT cells. Whether to broadcast SHCSRat or not is controlled by

SHCSRatPre.

4 Inter-system measurement rules for fast-moving UEs

If the number of cell reselections during time period TCrMax exceeds NCr , or if the

network (via signaling of RRC release, RB re-configuration) has ordered the UE to

consider itself in high mobility state, the UE is triggered to enter fast-moving state.

In this high-mobility state, UE will

IF (Srxlev <= SHCSRat ) or (if FDD and Squal <= SSearchRat ), or SHCSRat or

SsearchRat are not sent, THEN

< UE measure on all intra-system cells >

ELSE





- If SrxlevServ ingCell<=S prioritysearch1 or SqualServingCell<=S prioritysearch2 the UE shall perform

measurements of inter-RAT layers of lower priority.

- The UE shall perform measurements according to subclause 3.2.4.1 for inter-RAT

layers for which the UE has no absolute priority. For all inter-RAT layers belonging

to one RAT, either the rules above or the rules in subclause 3.2.4.1 or 3.2.4.3 shall

apply.

The absolute priority of current serving cell: ServCelPriority ;

The absolute priority of inter-frequency layers in UTRAN:

UtranPriority[MAX_NUM_UTRAN_FREQ] ;

The absolute priority of inter-RAT layers in EUTRAN:

EutranPriority[MAX_NUM_UTRAN_FREQ] ;

The absolute priority of inter-RAT layers in GERAN:

GeranPriority[MAX_NUM_GERAN_CELL_GROUP] .

3.2.4.5 Highest ranked cells with cell reservations, access restrictions or

unsuitable

Rank the cells according to cell reselection ranking criteria. The UE will detect whether

the highest ranked cells are with cell reservations, access restrictions or in other state

unsuitable for camping. If yes, the cells will be excluded from the candidate list for cell

reselection (This limitation is judged again when the highest ranked cell changes.).

If the highest ranked cell is an intra-frequency or inter-frequency cell which is not

suitable due to being part of the "list of forbidden LAs " or belonging to a PLMN which is

not indicated as being equivalent to the registered PLMN, the UE will not consider this

cell and other cells on the same frequency, as candidates for reselection within 300s. If

the UE has to perform an any cell selection procedure any limitation will be removed.

If the highest ranked cell is an inter-RAT cell which is not suitable due to being part of

the "list of forbidden LAs " or belonging to a PLMN which is not indicated as being

equivalent to the registered PLMN, the UE will not consider this cell as a candidate for

reselection within 300s. If the UE has to perform an any cell selection procedure any

limitation will be removed.

3.2.4.6 Rules of Cell Reselection Measurement for UE in CELL_FACH State

For UE in CELL_FACH state

If parameter “UE Inter-frequency FDD Measurement Indicator (FDDInterFMeasInd )” is

set to “False”, UE shall neither perform measurements nor evaluate cell re-

selection criteria on inter-frequency FDD cells. else, UE shall perform inter-

frequency measurement according to the rules in”3.2.4.1”,”3.2.4.2”,”3.2.4.3”.





If parameter “ UE Inter-RAT Measurement Indicator(InterRatMIndPre)” is set

to “False”, UE shall not perform Inter-RAT Measurement. Else, UE shall

perform Inter-RAT measurement according to the rules

in”3.2.4.1”,”3.2.4.2”, ”3.2.4.3”.

If parameter “UE Inter-frequency FDD Measurement Indicator (FDDInterFMeasInd )” or

“UE Inter-RAT Measurement Indicator(InterRatMIndPre)” is set to “True”, UE shall

perform Inter-frequency or Inter-RAT Measurement only in FACH measurement

occasion, other occasion shall be used to transmit user data. The FACH measurement

occasion is decided by parameter “FACH Measurement Occasion Cycle Length

Coefficient(FachMeasK )” which is described in 3gpp 25.331 “FACH measurement

occasion info”.

3.2.4.7 Cell reselection criteria

The following cell re-selection criteria are used for intra-frequency cells, inter-frequency

cells if no absolute priority information for any inter-frequency layer is available to the UE,

and inter-RAT cellsif no absolute priority information for any inter-RAT layer is available

to the UE for that RAT. For inter-frequency and inter-RAT layers in a RAT for which

absolute priorities are defined, then the cell reselection criteria in subclause 3.2.4.8 shall

apply.

If the serving cell uses the HCS (UseOfHCS (utranCell)) structure, the following cell

reselection rule H is used for quality ranking in cell reselection.

Hs = Qmeas,s - Qhcss

Hn = Qmeas,n - Qhcsn – TOn * Ln

If the cell does not use the HCS structure, the following cell reselection rule R is used for

quality ranking in cell reselection.

R s = Qmeas,s + Qhysts + Qoffmbms

R n = Qmeas,n - Qoffsets,n + Qoffmbms - TOn * (1 – Ln)

Where,





TOn = TEMP_OFFSETn * W(PENALTY_TIMEn – Tn)

Ln = 0 if HCS_PRIOn = HCS_PRIOs

Ln = 1 if HCS_PRIOn <> HCS_PRIOs

W(x) = 0 for x < 0

W(x) = 1 for x >= 0

Qmeas,s: Quality measurement result of serving cell.

Connected mode: When SIB4 is not broadcast, the parameter values are taken as in the

case of Idle mode; when SIB4 is broadcast, the value of QHcsEcNo (SIB4) is taken if

Ec/No is used as the quality measure, and the value of QHcsRSCP (SIB4) is taken if

RSCP is used as the quality measure.} Whether to broadcast SIB4 is controlled by

SIB4Ind . Whether Ec/No or RSCP is used as the quality measure is controlled by

QualMeas.

Qmeas,n: Quality measurement result of neighbor cell.

Qhcs,n: This specifies the quality threshold levels of neighbor cells for applying

prioritised hierarchical HCS cell re-selection (Idle mode: If Ec/No is used as the quality

measure, the value of QhcsEcN0Sib11 is taken; if RSCP is used as the quality measure,

the value of QhcsRscpSib11 is taken. Connected mode: When SIB12 is not broadcast,

the parameter values are taken as in the case of Idle mode; when SIB12 is broadcast,

the value of QhcsEcN0Sib12 is taken if Ec/No is used as the quality measure, and the

value of QhcsRscpSib12 is taken if RSCP is used as the quality measure.Whether to

broadcast SIB12 is controlled by SIB12Ind

Connected mode: When SIB4 is not broadcast, the parameter values are taken as in the

case of Idle mode; when SIB4 is broadcast, the value of QHyst1SPch is taken if RSCP

is used as the URA_PCH state reselection quality measure, and the value of

QHyst2SFach is taken if Ec/No is used as the CELL_FACH state reselection quality

measure. Whether to broadcast SIB4 is controlled by SIB4Ind .

Qoffmbms: This specifies the offset added to cells belonging to the MBMS PL when a

decision of HCS cell R reselection rule is being made.

Connected mode: When SIB12 is not broadcast, the parameter values are taken as in

the case of Idle mode; when SIB12 is broadcast, the value of Qoffset1SNSib12 is taken

if RSCP is used as the reselection quality measure, and the value of Qoffset2SNSib12 is

taken if Ec/No is used as the reselection quality measure. Whether to broadcast SIB12

is controlled by SIB12Ind

Tn: The timer used after cell reselection. The rules to start Tn are as follows:

Tn is implemented for each neighbouring cell. Tn will be started from zero when

one of the following conditions becomes true:





If HCS_PRIOn <> HCS_PRIOs and Qmeas,n > Qhcsn

or

If HCS_PRIOn = HCS_PRIOs and

for serving FDD and neighbour FDD cells if the quality measure for cell

selection and reselection is set to CPICH RSCP in the serving cell, and

Qmeas,n > Qmeas,s + Qoffset1s,n

or

for serving FDD and neighbour FDD cells if the quality measure for cell

selection and reselection is set to CPICH Ec/No in the serving cell, and


or

for all other serving and neighbour cells:


Tn for the associated cell will be stopped as soon as any of the above conditions

are no longer fulfilled.. Any value calculated for TOn is valid only if the associated

timer Tn is still running otherwise TOn will be set to zero.

At cell-reselection, a timer Tn is stopped only if the corresponding cell is not a

neighbour cell of the new serving cell, or if the criteria given above for starting timer

Tn for the corresponding cell is no longer fulfilled with the parameters of the new

serving cell. On cell re-selection, timer Tn will be continued to be run for the

corresponding cells but the criteria given above will be evaluated with parameters

broadcast in the new serving cell if the corresponding cells are neighbours of the

new serving cell.

Connected mode: When SIB12 is not broadcast, the parameter values are taken as in

the case of Idle mode; when SIB12 is broadcast, the value of TempOffset1Sib12 is

taken if RSCP is used as the reselection quality measure and the value of

TempOffset2Sib12 is taken if Ec/No is used as the reselection quality measure. Whether

to broadcast S IB12 is controlled by SIB12Ind )}. If HCS (UseOfHCS (utranCell) ) is used,

TEMP_OFFSETn is used to calculate TOn. If HCS (UseOfHCS (utranCell) ) is not used,

TEMP_OFFSETn is not applied when calculating Rn.

HCS_PRIOn: This specifies the HCS priority level for neighbouring cells (non-HCS cell:

The HcsPrio of the current RNC cell takes the value of HcsPrio(utranCell). The HcsPrio

of the neighbor RNC cell takes the value of HcsPrio (externalUtranCell). The HcsPrio of

the GSM cell takes the value of HcsPrio (externalGsmCell). If not configured, it is 0

default. For value of HCS cells, refer to Value of “HCS Priority” in “Cell reselection

measurement rule when the hierarchical cell structure (HCS) is used.





HCS_PRIOs: This specifies the HCS priority level for serving cell. (non-HCS cell: The

HcsPrio of the current RNC cell takes the value of HcsPrio(utranCell). The HcsPrio of

the neighbor RNC cell takes the value of HcsPrio (externalUtranCell). The HcsPrio of the

GSM cell takes the value of HcsPrio (externalGsmCell). For value of HCS cells, refer to

Value of “HCS Priority” in “Cell reselection measurement rule when the hierarchical cell

structure (HCS) is used.

The cell are ranked by quality according to the above defined R or H criteria using

CPICH RSCP (for FDD), P-CCPCH RSCP (for TDD) and the measurement result of

averaged received signal level (for GSM) as the calculation quantity of Qmeasn,

Qmeass, R or H. The best ranked cell is the cell with the highest R or H value.

For the cell selection and reselection parameters: Whether Qhcs, T Crmax , N CR and

T CrmaxHyst are configured is controlled by HcsSrvCelInfoPre. Whether the HCS-related

parameters in neighbor cell such as HCS_PRIO, Qhcs, Penalty _ time,

Temporary _ offset1 and Temporary _ offset2 are configured is controlled by UseOfHCS

(utranRelation) and UseOfHCS (gsmRelation).

If a TDD or GSM cell is ranked as the best cell, then the UE will perform cell re-selectionto that TDD or GSM cell and camps on the chosen cell.

If an FDD cell is ranked as the best cell and the quality measurement for cell selection

and re-selection is set to CPICH RSCP, the UE will perform cell re-selection to that FDD

cell and and camps on the chosen cell (If this cell is found to be not suitable, the UE will

behave according to “Highest ranked cells with cell reservations, access restrictions or

unsuitable for normal camping”).

If an FDD cell is ranked as the best cell and the quality measure for cell selection and re-

selection is set to CPICH Ec/No, the UE shall perform a second ranking of the FDD cells

according to the R criteria specified above, but using the quality measure CPICH Ec/No

for deriving the Qmeas,n and Qmeas,s and calculating the R values of the FDD cells (If this

cell is found to be not suitable, the UE will behave according to “Highest ranked cells

with cell reservations, access restrictions or unsuitable for normal camping ”).

In all cases, the UE will reselect the new cell, only if the following conditions are met: 0}

The new cell is better ranked than the serving cell during a time interval

Treselection according to the R or H criteria. If Treselection s,PCH is provided in SIB4,

the URA_PCH state timer takes the value of TreselectionPch; if TReselectionFach

is provided in SIB4, the CELL_FCH state timer takes the value of TreselectionFach.

For hierarchical cell structures when high mobility state has not been detected, if

according to the HCS rules the serving cell is not ranked then all the ranked cells

are considered to be better ranked than the serving cell. In case the UE reselects a

cell on an MBMS preferred frequency to receive an MBMS service not available on

the current frequency, the UE may reduce interval TreselectionS, TreselectionS, PCH

and TreselectionS, FACH. (Whether to configure SIB4 is controlled by SIB4Ind ).

More than 1 second has elapsed since the UE camped on the current serving cell.





The timers Treselection, TResel ectionPch and TReselectionFach will be multiplied

by scaling factor if the following conditions are satisfied:

The high mobility state of cell is detected and "Speed dependent ScalingFactor

for_Treselection" (SpSf) is broadcast on system information (whether broadcast is

controlled by SpSfPre), then TreselectionS, TReselectionPch and

TReselectionFach will be multiplied by the scaling factor SpSf in intra-frequency

measurement and the result is the actually used TreselectionS , TReselectionPch

and TReselectionFach.

The high mobility state of cell is not detected and " Inter -Frequency ScalingFactor

for Treselection" (InterFreqSf) is broadcast on system information (whether

broadcast is controlled by InterFreqSfPre), then Treselection, TReselectionPch and

TReselectionFach will be multiplied by the scaling factor InterFreqSf in inter-

frequency measurement and the result is the actually used TreselectionS,

TReselectionPch and TReselectionFach.


for_Treselection" (SpSf) and "Inter-Frequency ScalingFactor for Treselection "

(InterFreqSf) are broadcast on system information, then Treselection,

TReselectionPch and TReselectionFach will be multiplied by the scaling factors

SpSf and InterFreqSf in inter-frequency measurement and the result is the actually

used TreselectionS, TReselectionPch and TReselectionFach.

The high mobility state of cell is not detected and "Inter-RAT ScalingFactor for

Treselection" (InterRatSf ) is broadcast on system information (whether broadcast is

controlled by InterRatSfPre ), then Treselection, TReselectionPch and

TReselectionFach will be multiplied by the scaling factor InterRatSf in inter-RAT

measurement and the result is the actually used Treselection, TreselectionPch and

TReselectionFach.


for_Treselection" (SpSf) and "Inter-RAT ScalingFactor for Treselection "

(InterRatSf) are broadcast on system information, then TreselectionS,

TReselectionPch and TReselectionFach will be multiplied by the scaling factors

SpSf and InterRatSf in inter-RAT measurement and the result is the actually used

Treselection, TReselectionPch and TReselectionFach.

In case scaling is applied to Treselection or TReselectionPch, the UE will round up

the Treselection or TReselectionPch after all scalings to the nearest second. In

case scaling is applied to TReselectionFach, the UE will round up the result after all

scalings to the nearest 0.2 seconds.





3.2.4.8 Absolute priority based criteria for inter-frequency and inter-RAT cell

reselection

Absolute priority based inter- frequency and inter-RAT cell reselection is controlled by

AbsPriReselSwch. When this switch is “on”, SIB 19 will be broadcast. RNC configures

related frequency information ( AllowMeasBand/DlEARFCN/

EutranInterFNum/GsmBandIndicator/GsmCellGroupNum/StartARFCN/UtranInterFNum/

UtranUARFCN ), and serving cell priority (ServCelPriority ), frequency priority

(UtranPriority ) and other RAT priority (EutranPriority/ GeranPriority ) to UE in SIB19. The

following criteria are used for inter-frequency cells if absolute priority information for

inter-frequency is available to the UE, and inter-RAT cells if absolute priority information

for inter-RAT is available to the UE.

If System Information Block 18 with UTRAN information is provided then the UE shall

apply inter-frequency priority rules below only to UTRAN cells of the selected PLMN orequivalent PLMNs. If System Information Block 18 is not provided, or is provided but

contains no information for UTRAN, then the rules below apply for the entire UTRAN

RAT.

If System Information Block 18 with GERAN information is provided then the UE shall

apply the GERAN RAT priority rules below only to GERAN cells of the selected PLMN or

equivalent PLMNs. If System Information Block 18 is not provided, or is provided but

contains no information for GERAN, then the rules below apply for the entire GERAN

RAT.

If priority information is provided for any inter-frequency layers, cells belonging to inter-frequency layers for which no priority or no threshold is assigned shall not be considered

for reselection.

If priority information is provided for any inter-RAT layers in a RAT, cells belonging to

layers in that RAT for which no priority or no threshold is assigned shall not be

considered for reselection.

If none of the inter-frequency layers in UTRAN are provided with both priority and

threshold parameters, the cell reselection criteria in subclause 3.2.4.7 shall apply for

inter-frequency layers in UTRAN.

If none of the inter-RAT layers in a RAT are provided with both priority and threhsold

parameters, the cell reselection criteria in subclause 3.2.4.7 shall apply for that RAT.

For all inter-frequency layers or all inter-RAT layers belonging to one RAT, either the

criteria below or the criteria in subclause 3.2.4.7 shall apply.

If the UE has received absolute priority information for inter -frequency layers, the UE

shall follow these rules:

The UE shall perform measurements of inter- frequency layers with a priority higher

than the priority of the current serving layer.





For inter- frequency layers with a priority equal or lower than the priority of thecurrent serving layer :

- If SrxlevServingCell > S prioritysearch1 and SqualServingCell > S prio ritysearch2 the UE may choose not to

perform measurements of inter-frequency layers of equal or lower priority.

- If SrxlevServingCell <= S prioritysearch1 or SqualServingCell <= S prio ritysearch2 the UE shall perform

measurements of inter-frequency layers of equal or lower priority.

If the UE has received absolute priority information for inter -RAT layers, the UE shall

follow these rules:

The UE shall perform measurements of inter-RAT layers with a priority higher than

the priority of the current serving cell.

For inter-RAT layers with a priority lower than the priority of the current serving cell:

- If SrxlevServingCell > S prio ritysearch1 and SqualServingCell > S prioritysearch2 the UE may choose not to perform measurements of inter-RAT layers of lower priority.

- If SrxlevServingCell <= S prioritysearch1 or SqualServingCell <= S prioritysearch2 the UE shall perform

measurements of inter-RAT layers of lower priority.

Where,

Sprioritysearch1,,CPICH RSCP Measurement Trigger Threshold for Absolute Priority Reselection

Criteria, SPrioritySearch1

Sprioritysearch2,, CPICH EcN0 Measurement Trigger Threshold for Absolute Priority Reselection

Criteria, SprioritySearch2

The following definitions apply

- Criterion 1: the SrxlevnonServingCell,x of a cell on an evaluated higher absolute priority is

greater than Threshx,high during a time interval Treselect ion;

- Criterion 2: SrxlevServ ingCell < Threshserving,low or SqualServ ingCell<0 and the

SrxlevnonServingCell,x of a inter-frequency cell on an evaluated equal absolute priority layer

is greater than Threshx,low during a time interval Treselect ion;

- Criterion 3: SrxlevServ ingCell<Threshserving,low or SqualServ ingCell<0 and the

SrxlevnonServingCell,x of a cell on an evaluated lower absolute priority layer is greater than

Threshx,low during a time interval Treselection;

where,

Threshx,high, an Srxlev based threshold used by the UE for cell reslection towards a

higher absolute priority layer. For UTRAN, it is

UtranHighThresh[MAX_NUM_UTRAN_FREQ] ; for EUTRAN, it is

EutranHighThresh[MAX_NUM_EUTRAN_FREQ] ; for GERAN, it is

GeranHighThresh[MAX_NUM_GERAN_CELL_GROUP] .





Threshx,low, an Srxlev based threshold used by the UE for cell reselection towards an

equal or lower absolute priority layer. For UTRAN, it is

UtranLowThresh[MAX_NUM_UTRAN_FREQ] ; for EUTRAN, it is

EutranLowThresh[MAX_NUM_EUTRAN_FREQ] ; for GERAN, it is

GeranLowThresh[MAX_NUM_GERAN_CELL_GROUP];

Threshserving,low, the limit for Srxlev in the serving cell below which the UE may perform

cell reselection to a cell on a lower absolute priority layer. ThreshServingLow

Cell reselection to a cell on a higher absolute priority layer than the camped frequency

shall be performed if criterion 1 is fulfilled.

Cell reselection to an inter-frequency cell on an equal absolute priority layer to the

camped frequency shall be performed if criterion 2 is fulfilled.

Cell reselection to a cell on a lower absolute priority layer than the camped frequency

shall be performed if criterion 3 is fulfilled.

If more than one cell meets the above criteria, the UE shall reselect the cell with the

highest SrxlevnonServingCell,x among the cells meeting the criteria on the highest absolute

priority layer.

The UE shall not perform cell reselection to cells for which the cell selection criterion S is

not fulfilled.

The UE shall not perform cell reselection until more than 1 second has elapsed since the

UE camped on the current serving cell.

SIB19 also broadcasts Qrxlevmin of UTRAN for Cell Reselection (QrxlevminFDD),

Qqualmin of UTRAN for Cell Reselection (QqualminFDD ), Qrxlevmin of EUTRAN for

Cell Reselection (QrxlevminEUTRA) and Qrxlevmin of GSM for Cell Reselection

(QrxlevminGSM)

In all the above criteria the values of Treselections, Treselections,PCH or Treselections,FACH

apply for Treselection and are scaled according to the UE mobility state and target RAT,

as specified in 3.2.4.7.

3.2.5 Cell Selection When Leaving Connected Mode

When returning to idle mode from connected mode, the UE will select a suitable cell to

camp on. Candidate cells for this selection are the cell(s) used immediately before

leaving connected mode. If no suitable cell is found, the UE will use the Stored

information cell selection procedure in order to find a suitable cell to camp on.

When returning to idle mode after an emergency call on any PLMN, the UE will select an

acceptable cell to camp on. Candidate cells for this selection are the cell(s) used

immediately before leaving connected mode. If no acceptable cell is found, the UE will

continue to search for an acceptable cell of any PLMN in state Any cell selection.





3.2.6 Any Cell Selection State

In this state, the UE will attempt to find an acceptable cell to camp on, trying all RATs

that are supported by the UE and searching first for a high quality cell, till an acceptable

cell is found.

3.2.7 Camped on Any Cell State

In this state, the UE will perform the following tasks:

Select and monitor the indicated PICH and PCH of the cell

Monitor relevant System Information

Perform necessary measurements for the cell reselection evaluation procedure

Execute the cell reselection evaluation process on the following occasions/triggers:

UE internal triggers

When information on the BCCH used for the cell reselect ion evaluation procedure

has been modified

Regularly attempt to find a suitable cell trying all RATs that are supported by the

UE. If a suitable cell is found, this causes an exit to number 2 in 0.

In this state the UE is not permitted to receive any MBMS services.

3.2.8 Cell Reservations and Access Restrictions

There are two mechanisms, which allow an operator to impose cell reservations or

access restrictions.

The first mechanism uses indication of cell status and special reservations for control of

cell selection and re-selection procedures.

The second mechanism will allow preventing selected classes of users from sendinginitial access messages for load control reasons. At subscription, one or more Access

Classes are allocated to the subscriber and stored in the USIM, which are employed for

this purpose.

3.2.8.1 Cell status and cell reservations

Cell status and cell reservations are indicated with the Cell Access Restriction

Information Element in the System Information Message by means of three Information

Elements:





Cell barred CellBarredInd

Cell Reserved for operator use OperatorUseInd

Cell reserved for future extension CellRsvExt

In state CellBarredInd , it‟s necessary to configure InFreqReselInd and TBarred for theUE. If InFreqReselInd is “Not Allowed”, the processing strategy of the intra-frequency

neighbor cell in state CellBarred is the same as the current cell in state CellBarred. The

UE will not attempt to reselect the cell in state CellBarred within the Tbarred time period.

After Tbarred expires, the UE will attempt again to reselect the cell.

When cell status is indicated as "not barred", "not reserved" for operator use and "not

reserved" for future extension

All UEs will treat this cell as candidate during the cell selection, cell evaluation andcell re-selection procedures in Idle mode and in Connected mode.

When cell status is indicated as "not barred", "not reserved" for operator use and

"reserved" for future extension

UEs will behave as if cell status "barred" is indicated using the value "not al lowed"

in the information element (IE) "Intra-frequency cell re-selection indicator" and the

maximum value for Tbarred

When cell status is indicated as "not barred" and "reserved" for operator use,

UEs assigned to Access Class 11 or 15 will treat this cell as candidate during the

cell selection and cell re-selection procedures if the cell belongs to the home PLMN.

UEs assigned to an Access Class in the range 0 to 9 and 12 to 14 shall behave as

if cell status "barred" is indicated using the value "not allowed" in the IE "Intra-

frequency cell re-selection indicator" and the maximum value for Tbarred

When cell status "barred" is indicated,

The UE is not permitted to select/re-select this cell, not even for emergency calls.

The UE will ignore the "Cell Reserved for future extension (Cell Reservation

Extension) use" IE.

The UE is not permitted to receive any MBMS services.

The UE will select another cell according to the following rule:

If the "Intra-frequency cell re-selection indicator (InFreqReselInd )" IE in Cell Access

Restriction IE is set to value "allowed", the UE may select another cell on the same

frequency if selection/re-selection criteria are fulfilled.





the relevant access class (11 to 15) are barred. Otherwise, emergency calls are allowed

for those UEs.

3.2.9 Cell Reselection Process in RRC Connected Mode

In RRC connected mode, the cell reselection process with the UTRA access technology

is the same as that in Idle mode.

3.2.10 Parameters and Configuration for Cell Selection and Reselection

The system information SIB3 related with cell selection and reselection must be

configured. SIB4 is optional. Whether to configure SIB4 is controlled by SIB4Ind . The IE

of SIB3 is totally the same as that of SIB4. The system uses different records in the

same datasheet to configure the SIB or SIB4 message and the purpose of the record isidentified through Sib3orSib4. The cell selection and reselection in IDLE mode employs

parameters in SIB3. The cell selection and reselection in connected mode and IDLE

mode employs parameters in SIB4 if SIB4 is configure, or parameters in SIB3 if SIB4 is

not configured.

3.2.11 SIB11bis usage

For current 3GPP specification, one System Information Block can be divided into 16

segmentations, each of which can include at most 222 bits. That means one System

Information Block can include at most 3552 bits. But for current specification, up to 96neighbor cells are supported at the same time which needs more bits than 3552 to carry.

To support up to 96 neighbor cells are supported at the same time, SIB11bis will be

used. Neighbor cell to be carried by SIB11 or SIB11bis is decided by

Sib11orSib11bis(utranRelation /gsmRelation).

3.3 Strategy of LA and RA Update

In the UE, the AC should report registration area information to NAC.

Once the UE finds the cell to register, it will register on the corresponding PLMN. If theLAI or RAI read from system information are different from those stored in USIM before

the UE switches off, the UE will perform LA or RA registration update. When the UE in

IDLE mode moves to a new LA or RA or PLMN, it will perform registration area update.

The process of LA or RA update is controlled by CN and is transparently transmitted as

the RAN is concerned.

There are three types of registration area update: normal update, periodic update and

IMSI attach and detach.





3.3.1 LA and RA Structure

The LA is an area to which the CN sends a paging message for circuit switched service

and the RA is an area to which the CN sends a paging message for packet switched

services. Each area, LA or RA, may consist of several cells of one or more RNC, which

are connected to the same core network. The RA is required if the RNC is connected to

a packet switched CN. Note that each cell could belong to only one LA and one RA.

The LA is identified by a combination of PLMN Identity and Location Area Code (LAC).

The RA is identified by a combination of PLMN and Routing Area Code (RAC).

3.3.2 Normal LA and RA Updating

A UE executes a normal registration update when, in a cell belonging to a new LA or RA,it is switched on or leaves the Connected mode. Normal registration update is also

performed when the UE, in Idle mode, moves in a cell belonging to a new LA or RA or

PLMN. The UE reads the LAI and the RAI in the system information and detects that

one or both of the received area identities differ from the ones stored on the USIM. If the

LAI received from the system information is not in the forbidden LAIs list, an LA and/or

RA update request is sent by the UE. If the LAI is forbidden, the UE tries to select

another cell belonging to a permitted LAI or another PLMN.

3.3.3 Periodic LA and RA Updating

Periodic LA and RA updating is used to notify the network of the UEs availability, and to

avoid unnecessary paging attempts for a UE that has lost coverage and is not able to

inform the CN that it is inactive. The periodic LA update procedure is controlled by a

timer, called t3212, whose value is sent to UEs with broadcast message. The periodic

RA update is controlled by a timer, called t3312 (not a radio parameter), whose value is

sent by the CN to the UE in the IMSI attach or in the routing area update message

accept.

3.3.4 IMSI Attach/Detach

A location registration request indicating IMSI attach is made when the UE is activated in

the same LA in which it was deactivated, and the system information (att) indicates that

IMSI attach/detach is used. If the parameter att is set to 1, the UE sends an “attach” or

“detach” message when it is powered on or off indicating whether the UE is active or

inactive. The IMSI attach/detach procedure allows the UE to avoid unnecessary paging

attempts from the CN.

The CN avoids performing paging attempts when IMSI detach is applied and the UE is

switched off. When the UE is switched on and the IMSI attach/detach procedure is

applied, the UE performs a location registration request, indicating IMSI attach, if it is in





the same LA or RA in which it was switched off. If the registration area is changed, a

normal LA update is performed by the UE.

3.4 Strategy of URA Update

In state URA_PCH, the procedure URA Update is initiated in the following cases with the

trigger reason of “change of URA”:

If the new cell that the UE camps on is not in the same URA area as the former cell

that the UE camps on, the URA Update is triggered (to perform the “Figure 4 URA

update procedure, basic flow”).

The UE enters a cell that has no URAs defined. This will trigger a release of the

RRC Connection and the UE enters Idle mode (The URA ID list in SIB2 is empty or

the SIB2 information is not received) (to perform “Figure 5 URA update procedure,

failure case

-The T305 in the IE “UE Timers and constants in connected mode" set to non-

infinity and T305 expires (to perform “Figure 4 URA update procedure, basic flow”).

If the UE doesn‟t support HS-DSCH reception but receives the IE "HS-DSCH

paging system information", and the IE is not save for the moment, and the 12

MSBs (high 12 bits) of "SRNC identity" in U_RNTI does not equal to the 12 MSBs

of "Cell identity" in SIB3 (to perform “Figure 4 URA update procedure, basic flow”).

3.4.1 Process of URA Update

Figure 3-4 URA update procedure, basic flow

UE UTRAN

URA UPDATE

URA UPDATE CONFIRM





Figure 3-5 URA update procedure, failure case

UE UTRAN

URA UPDATE

RRC CONNECTION RELEASE

3.5 Strategy of CELL Update

A UE triggers cell update in the following cases:

Cell reselect ion in state CELL_FACH (to perform “Figure 6 Cell update procedure,

basic flow”)

Radio link failure in state CELL_DCH (to perform “Figure 7 Cell update procedure

with physical channel reconfiguration flow ” for call re-establishment)

T305 periodic cell update (to perform “Figure 6 Cell update procedure, basic flow”).

In state CELL_FACH, when the UE enters an area with acceptable coverage after

coverage loss, periodic cell update is performed (to perform “Figure 6 Cell update

procedure, basic flow”)

The UE in state URA_PCH sends data in uplink (to perform “Figure 6 Cell update

procedure with radio bearer reconfiguration ”)

The UE in state URA_PCH (can be originated by UTRAN or CN) (to perform

“Figure 8 Cell update procedure with radio bearer reconfiguration ”)

The UE in state CELL_FACH/CELL_DCH detects that an RLC unrecoverable error

of AM RLC entity (to perform Figure 7 Cell update procedure with physical channel

reconfiguration ”)

MBMS p-t-p RB request in state URA_PCH/CELL_FACH (to perform “Figure 6 Cell

update procedure, basic flow”)

MBMS Counting in state URA_PCH/CELL_FACH (to perform “Figure 6 Cell update

procedure, basic flow”)





3.5.1 Process of CELL Update

Figure 3-6 Cell update procedure, basic flow

UE UTRAN

CELL UPDATE

CELL UPDATE CONFIRM

Figure 3-7 Cell update procedure with physical channel reconfiguration

UE UTRAN

CELL UPDATE

CELL UPDATE CONFIRM

PHYSICAL CHANNEL RECONFIGURATION COMPLETE

Figure 3-8 Cell update procedure with radio bearer reconfiguration

UE UTRAN

CELL UPDATE

CELL UPDATE CONFIRM

RADIO BEARER

RECONFIGURATION COMPLETE





3.6 Random Access Process of PRACH

3.6.1 PRACH Structure

The Physical Random Access Channel (PRACH) carries the RACH transport channel.

As shown in Figure 3-9 the PRACH comprises one or more random access preambles

of 4096 chips long and the random access message of 10ms or 20ms.

Figure 3-9 PRACH Structure

Message partPreamble

4096 chips

10 ms (one radio frame)

Preamble Preamble

Message partPreamble

4096 chips 20 ms (two radio frames)

Preamble Preamble

3.6.2 Preamble Part

The preamble part of PRACH is 4096 chips long. It is obtained by repeating the 16-chip

signature (configured through Signature under Prach) for 256 times and then processedwith RPACH preamble scrambling (PreamScraCode).

3.6.3 Message Part

The message part of PRACH is made up of frames that are 10ms and 20ms long, the

same as TTI (Transmission Time Interval) of RACH. Figure 10 shows the 10ms long

message part of PRACH. A 10ms-long radio frame is made up of 15 slots and each slot

comprises the parallel data part and control part. The 20ms-long PRACH message is

made up of two 10ms-long PRACH message.





Figure 3-10 Structure of PRACH Message

Pilot

N pilot bits

Data

Ndata bits

Slot #0 Slot #1 Slot #i Slot #14

Tslot = 2560 chips, 10*2k bits (k=0..3)

Message part radio frame TRACH = 10 ms

Data

ControlTFCI

NTFCI bits

One slot of the PRACH message can carry 10*2k bits. k=0, 1, 2 and 3 corresponds

respectively to the spectrum spreading factors adopted by the message part: SF=256,

128, 64 and 32. The minimum spectrum spreading factor available for the PRACH

message part is configured with the parameter AvailableSF .

The PRACH message control part also comprises 2560 chips, including 8 known pilot

bits and 2 transport format combination indicator (TFCI) bits indicating the transport

format of transmitted data, which is equivalent to the spectrum spreading with SF=256

code words.

The transport format adopted for the data part is sent in SIB 5. ZTE RNC uses thefollowing parameters to configure the transport format of PRACH:

CPCId of PRACH indicates the common physical channel identity of PRACH.

Sib5OrSib6 of PRACH determines that the related configuration information of

PRACH corresponding to CPCId is to be broadcast in SIB5 or SIB6.

TfcsIndex of PRACH indicates the index of TFCS used by PRACH corresponding

to CPCId .

CtfcNum and Ctfc of PRACH indicates the number of CTFCs and label of TFC of

PRACH of TfcsIndex , that is, Ctfc is the array parameter and the dimension of the

array takes the value of CtfcNum.

PrachCPCId of RACH indicates the common physical channel identity of PRACH

that takes the same value of CPCId of PRACH.

CTCId of RACH indicates the common transport channel identity of RACH mapped

on the PRACH with the common physical channel identity of PrachCPCId .

TfsIndex of RACH indicates the TFS index of RACH corresponding to CTCId .





TrBlkNum of Tfs indicates the number of transport blocks in the transport format

corresponding to RACH of TfsIndex .

RlcSize of Tfs indicates the size of transport block corresponding to RACH of

TfsIndex .

TTI of Tfs indicates the transmission time interval corresponding to RACH of

TfsIndex .

RlcSize and TTI of Tfs are array parameters. Dimension of the array equals the

value of TrBlkNum, the label of the element in the array equals the value of Ctfc of

PRACH.

Figure 3-11 shows the mapping relation among the above described parameters:

Figure 3-11 Mapping Relation of PRACH-related Parameters

Sib5OrSib6

TfcsIndex CtfcNum + Ctfc

CPCId

/PrachCPCId

CTCId

TfsIndex RlcSize + TrBlkNum + TTI

3.6.3.1 Selection of channelized code of PRACH message part

The spectrum spreading code used by the control part of PRACH is cc = Cch,256,m, where

m = 16×s + 15. The spectrum spreading code used by the data part of PRACH is c d

=Cch,SF,m, where SF=256, 128, 64 and 32 are the spectrum spreadi ng factor of the data

part, m = SF×s/16, s(0 s 15) is the serial number of the signature used by the

PRACH preamble part among all 16 PRACH preamble signatures. The minimum

spectrum spreading factor available for the PRACH message is controlled by

AvailableSF . The UE selects the size of the spectrum spreading factor adaptivelyaccording to the size of the PRACH message part, the AvailableSF configured in the

network side and also the PunctLimit . The selection method is described in the following:

A PRACH message with the 10ms-long radio frame can carry the number of data bits as

determined by the spectrum spreading factor, relation o f the two is listed in the following

table:





Table 3-1 Number of Bits Carried in PRACH Message vs. Spectrum Spreading Factor

Slot Format#i

Channel BitRate (kbps)

Channel SymbolRate (ksps)

SF Bits/Frame

Bits/Slot

Ndata

0 15 15 256 150 10 10

1 30 30 128 300 20 20

2 60 60 64 600 40 40

3 120 120 32 1200 80 80

The number of bits that can be carried by a 10ms-long radio frame of PRACH message

is indicated respectively as N256, N128, N64, N32, corresponding to the cases when

SF=256, 128, 64 and 32. Ni indicates the number of bits to be sent by the UE in a 10ms-

long PRACH radio frame. According to AvailableSF , SET0={N256,…, N AvailableSF } is set up.

SET1 = {Ndata in SET0 such that (Ndata - Ni)≥0}, that is, SET1 is the set of elements

greater than Ni in SET0.

If SET1 is not empty, then the spectrum spreading factor corresponding to Ndata with the

smallest value in SET1 is selected as the spectrum spreading factor for the PRACH

message part.

If SET1 is empty, then set up SET2:

SET2 = {Ndata in SET0 such that (Ndata – PunctLimit ×Ni)≥0}, that is, SET2 is the set of

elements greater than PunctLimit ×Ni in SET0, PunctLimit ×Ni is the remaining number of

bits of the PRACH message part after the operation of configured PunctLimit subtracted

by (1-PunctLimit )×Ni.

The spectrum spreading factor corresponding to Ndata with the smallest value in SET2 is

selected as the spectrum spreading factor for the PRACH message part.

3.6.4 Random Access Process of Physical Layer

Before the random access process of the physical layer is initialized, the physical layer

will receive the following information from the RRC layer:

Preamble scrambling code: reamScraCode

Length of random access message (10ms or 20ms)

AICH transmit time ( AichTranTime )

Available signature ( AsigStIdx and AsigEndIdx indicate the start and end serial

numbers of the valid signature sequence) and valid RACH number ( AsubChNum)

corresponding to every ASC.

Preamble power ramp step (PRStep) for random access





Maximum preamble retransmission times (MaxPreamRetrans)

Power offset of the last sent preamble and the random access message control

part (POPpm)

The transport format set of access message part (configured through TfcsIndex

indexing to actual TFCS) includes the data channel corresponding to TFC and the

power gain factor of control channel (configured separately through BetaD and

BetaC of PRACH)

Before the random access process of the physical layer is initialized, the physical layer

will receive the following information from the MAC layer:

Transport format of the PRACH message part.

ASC of PRACH transmission.

Data block that is sent.

The random access process of the physical layer is as follows:

1 Determine the available access slot set according to the RACH ( AvailSubChanNum )

corresponding to ASC and select an available access slot from the set. If there is no

available access slot in the selected slot set, select ransomly an access slot from

the next available access slot according to the RACH corresponding to ASC.

2 Select randomly a signature from the valid signature set corresponding to ASC.

3 Set the preamble retransmission counter to the maximum preamble retransmissions

(MaxPreamRetrans).

4 The UE calculates the initial transmit power of preamble (involved parameters

include BetaD, BetaC , POPpm and ConstVal of PRACH, refer to ZTE UMTS Power

Control Feature Guide).

5 If the preamble transmit power worked out by the UE exceeds the allowed UL

maximum transmit power (MaxRACHTxPwr (Prach) ), then set the preamble

transmit power to the same as the maximum transmit power. If the preambletransmit power worked out by the UE is below the allowed UL minimum transmit

power, then set the preamble transmit power to the same as the maximum transmit

power, then set the preamble transmit power to the same as the minimum transmit

power. Next, transmit the random access preamble according to the selected

signature, UL access slot and preamble transmit power. Only when the ratio of the

preamble power received by NodeB to the interference is greater than PreamThs,

NodeB will send positive response on the AICH.

6 If the UE fails to receive, in the DL access slot corresponding to the slot that sends

the UL access preamble, the positive or negative response (AI = +1 nor –1)

corresponding to the selected signature on AICH, the UE will perform the following:





Select the next available access slot set from the valid RACH numbers corresponding to

ASC.

Randomly select a valid signature from the valid signature set corresponding to ASC.

Increase the transmit power of random access preamble by one PRStep. If the transmit

power of random access preamble exceeds the maximum allowed transmit power 6dB,

the UE‟s physical layer reports "No ack on AICH" to the MAC layer and exit the physicalrandom access process.

Decrease the preamble retransmission counter by 1.

If the preamble retransmission counter is greater than 0, perform step 5 again.

Otherwise, the UE physical layer reports "No ack on AICH" to the MAC layer and exits

the physical random access process.

1 If the UE receives, in the DL access slot corresponding to the slot that sends the UL

access preamble, the negative response corresponding to the selected signature on

AICH, the UE physical layer reports "Nack on AICH received" to the MAC layer and

exits the physical random access process.

2 If the UE receives, in the DL access slot corresponding to the slot that sends the UL

access preamble, the positive response corresponding to the selected signature on

AICH, then the UE sends the message part of random access in the third UL

access slot ( AichTranTime=0) after the slot that sends the random access preamble

for the last time or in the fourth UL access slot ( AichTranTime=1). The transmit

power offset between the control part of the random access message and the last

random access preamble is configured with the parameter POPpm.

3 The UE physical layer reports "RACH message transmitted" to the MAC layer and

exits the physical random access process.

3.6.4.1 RACH access slot set

PRACH has totally 15 slots of 20ms and the slots belongs to two access slot sets.

Access s lot set 1 includes these slots: slot 0~7 starting from p-a chips before the DL P-

CCPCH frame of SFN mod 2=0. Access slot set 2 includes these slots: slot 8~14 startingfrom p-a –2560 chips before the DL P-CCPCH frame of SFN mod 2=0. Figure 3-12

shows the diagram of the two access slot sets:





Figure 3-12 Relation between the PRACH Access Slot and DL AICH

AICH accessslots

10 ms

#0 #1 #2 #3 #14#13#12#11#10#9#8#7#6#5#4p-a

#0 #1 #2 #3 #14#13#12#11#10#9#8#7#6#5#4

PRACHaccess slots

SFN mod 2 = 0 SFN mod 2 = 1

10 ms

Access slot set 1 Access slot set 2

3.6.4.2 RACH

RACH defines a subset of all UL access slots.

The following table gives the access slot mapping of different RACHs corresponding to

SFN:

Table 3-2 Mapping Relation Between Available UL Access Slot and RACH

SFN modulo 8 of

corresponding P-CCPCH frame

Sub-channel number

0 1 2 3 4 5 6 7 8 9 10 11

0 0 1 2 3 4 5 6 7

1 12 13 14 8 9 10 11

2 0 1 2 3 4 5 6 7

3 9 10 11 12 13 14 8

4 6 7 0 1 2 3 4 5

5 8 9 10 11 12 13 14

6 3 4 5 6 7 0 1 2

7 8 9 10 11 12 13 14

3.6.4.3 PRACH/AICH timing relation

The AICH frame is 20ms long and divided into 15 slots, each slot with 5120 chips. The

DL access slot is aligned wih PCCPCH.

The UL PRACH is divided into 15 UL access slots, each slot with 5120 chips. The UL

slot number n is transmitted from thep-a chips prior to the expected reception of of slot n

corresponding to AICH. The minimum interval between two consecutive random access

preambles isp-p,min. The interval between random access preamble and AICH response

is p-a. Figure 3-13 shows thep-p,min, p-a and the timing relation between the random

access preamble and random access message part:





Figure 3-13 Timing Relation between PRACH and AICH as Observed from the UESide

One access slot

p-a

p-mp-p

Pre-amble

Pre-amble Message part

Acq.Ind.

AICH accessslots RX at UE

PRACH accessslots TX at UE

The time relationp-p between preamble and preamble should be no smaller than the

minimum interval p-p,min, between preamble and preamble, that is: p-p p-p,min,. According to the value of AICH_Transmission_Timing (to be configured with

AichTranTime), there are the following two types of timing relation:

1 AICH_Transmission_Timing = 0

p-p,min = 15360 chips (3 access slots)

p-a = 7680 chips (1.5 slots)

p-m = 15360 chips (3 access slots)

2 AICH_Transmission_Timing = 1

p-p,min = 20480 chips (4 access slots)

p-a = 12800 chips (2.5 slots)

p-m = 20480 chips (4 access slots)

3.6.5 Random Access Process of the MAC Layer

The UE RRC layer sends the RACH transport control parameter to the MAC layer. The

parameters include:

ASC parameter: The available PRACH partition corresponding to every ASC,

including available signature ( AsigStIdx and AsigEndIdx indicate the start and end

serial numbers of the valid signature sequence) corresponding to every ASC and

valid RACH subchannel number ( AsubChNum) and persistence value P i (Pi

indicates the probility of sending the random access preamble and it is controlled

by DynPstLevelInit and PSF ). AsigStIdx , AsigEndIdx and AsubChNum are defined

in array mode. The array dimension equals to “allowed maximum access service

class (PermitMaxASC )” whose upper limit is 8. PSF is defined in array mode and





the array dimension equals to number of persistence factors (PsfNum) whose

upper limit is 6.

The maximum preamble ramping cycles, Mmax , is used to control the maximum

attempts of the MAC layer to initiate the random access process.

The rollback interval range is expressed by the parameters NB01min and

NB01max (multiple of 10ms). They indicate the status of NACK as received by

AICH. NB01max indicates the maximum interval between AICH receiving NACK

and the MAC layer initiating again the random access process. NB01min indicates

the minimum interval between AICH receiving NACK and the MAC layer initiating

again the random access process.

If there is data being transmitted, the MAC layer selects, from the set of available ASCs,

a ASCi and PRACH partition corresponding to ASCi and also Pi.

Based on the probability of sending random access preamble as indicated by Pi, the UE

determines whether to start the physical layer access process at the current TTI. If the

sending is allowed, then the UE initializes the physical layer random access process

then the MAC layer waits for the returned information from the physical layer. If the

sending is not allowed, then the MAC layer attempts again the random access process

at the next TTI.

When the preamble sent from the physical layer is acknowledged positively by AICH, the

physical layer notifies the MAC layer of "ready for data transmission" with the primitive

PHY-ACCESS-CNF. Next, the MAC layer uses the primitive PHY-DATA-REQ to perform

data transmission. The transmission process of PRACH ends after the PRACH message

part is sent. In addition, the high-level MAC should be notified of the successful sending

of the control process.

When the attempts of preamble sending by the physical layer reaches the value of

MaxPreamRetrans but still the response of AICH is not received, the physical layer

notifies the MAC layer of related information. The MAC layer then makes new sending

attempt at the next TTI. The timer T2 ensures that there is at least a 10ms interval

between two consecutive sending attempts.

When the UE receives the negative response from AICH, it starts the rollback timer TBO1.

After the timer expires, it may make another sending attempt. TBO1 is set to NBO1

multiples of 10ms. The value of NBO1 satisfies the relation:

0NB01minNBO1NB01max . When a fixed delay is expected, NB01min and NB01max

can be set to the same value.

Before every attempt of the random access process, it‟s necessary to check whether

new RACH sending control parameter is received from the RRC layer. If yes, then the

latest RACH sending control parameter is used.





If the number of new attempts by the MAC layer exceeds the maximum preamble

ramping cycles, Mmax , then the MAC layer notifies the RRC layer of the RACH sending

failure.

The successful or unsuccessful control process sending by the MAC layer is meant for

every logic channel.

3.6.5.1 Establishment of access service classes

To differentiate user priorities, different RACH-related physical resources (such access

slot and preamble signature) can be allocated to different ASCs. The same access slot

and signature may also be allocated to several or all ASCs.

ASC is numbered as I: 0 i NumASC 7 (there can be 8 ASCs at most). ASC0 is of

the highest priority and is used for emergency call or other services with the same

priority. The ASC numbered as i corresponds to one type of PRACH-related resource

allocation mode (PRACH partition) and corresponding persistence factor Pi. The

information can be obtained from the system information broadcast.

The dynamic persistence factor P i is worked out according to the dynamic persistence

level N=1…8 (sent in SIB7) corresponding to ASC i and the persistence scaling factor s i

(sent in SIB5 or SIB56, configured with PSF ). 0 shows the mapping relation. If number k

1 of persistence factors s i is broadcast and also NumASC k+2, then for the ASC of i >

k +1, the persistence factor is defaulted as sk+1. Therefore, PSF only needs to configure

the persistence scaling factor s i for ASC2~ ASCk+1. (PSF is defined in the array mode.)

P(N) =2(N 1)

Table 3-3 ASCi-to-Pi Mapping Relation

ASCi 0 1 2 3 4 5 6 7

Pi 1 P(N) s2 P(N) s3 P(N) s4 P(N) s5 P(N) s6P(N) s7 P(N)

As shown in above table, when ASC=0 and ASC=1, the factor si is not needed. If s i is

not broadcast in the system information, then for the ASC with the NumASC>=2, its si

can be defaulted as 1.

3.6.5.2 AC-to-ASC mapping

AC is used for primary access only, for example, when the RRC CONNECTION

REQUEST is sent.

The AC-to-ASC mapping related is broadcast in the IE of SIB5: "AC-to-ASC mapping",

and is configured with AC2ASCMap. The relation between AC and ASC is listed in 0.

There can be 8 ASCs at most.





Table 3-4 AC-to-ASC Mapping Relation

AC 0 - 9 10 11 12 13 14 15

ASC 1st

IE 2nd

IE 3rd

IE 4th

IE 5th

IE 6th

IE 7th

IE

In the case of random access, the parameters provided by respective ASC are used.

When the UE can contains several ACs, the UE only needs to map the highest AC

number to the corresponding ASC. In connected mode, AC is not used.

4 Parameters and Configuration

4.1 Cell Selection/Reselection-related Parameters

4.1.1 Parameter ListAbbreviated name Parameter name

QQualMinMinimum Required Quality Level in the Cell(Qqualmin)

QRxLevMinMinimum Required Received Level in the Cell(Qrxlevmin)

MaxRACHTxPwr (Prach) Maximum Allowed UL TX Power of RACH(dBm)

MaxRACHTxPwr (externalUtranCell) Maximum Allowed UL TX Power of RACH(dBm)

UseOfHCS (utranCell) Use of HCS (utranCell)

UseOfHCS (utranRelation) Use of HCS (utranRelation)

UseOfHCS (gsmRelation) Use of HCS (gsmRelation)

SIntraSearchPre Sintrasearch Configuration Tag

SIntraSearchIntra-Frequency Measurement Trigger Thresholdfor Cell Reselection (S intrasearch)

SInterSearchPre Sintersearch Configuration Tag

SInterSearchInter-Frequency Measurement Trigger Thresholdfor Cell Reselection (S intersearch)

OtherRATInfoPre Inter-system Information Configuration Tag

SSearchRatInter-System Measurement Trigger Threshold forCell Reselection (Ssearch,RAT)

SLimitRatHigh HCS Priority Inter-System Cell MeasurementThreshold for Cell Reselection (Slimit,SearchRAT)

FreqPLIndMBMS Preferred Layer Indicator for Frequenciesin SAC

HcsPrio(utranCell) HCS_PRIO

HcsPrio(externalUtranCell) HCS_PRIO

HcsPrio(externalGsmCell) HCS_PRIO

QoffMbms Qoffmbms(dB)

HcsOffMbms HCS_OFFmbms





SsearchHCSMeasurement Trigger Threshold for HCS CellReselection (SsearchHCS)

SSearchHCSPre SsearchHCS Configuration Tag

NoHcsTCrMaxDuration for Evaluating Allowed Amount of CellReselection(s) in Case of Non-HCS Usage (Non-HCS_TCrmax)

NoHcsNCrMaximum Number of Cell Reselections in Caseof Non-HCS Usage (Non-HCS_NCR)

NoHcsTCrMaxHyst Additional Time Period Before the UE Can Revert

to Low-Mobility Measurements in Case of Non-HCS Usage (Non-HCS_TCRmaxHyst)

TCRmaxDuration for Evaluating Allowed Amount of CellReselection(s) (TCRmax)

NCr Maximum Number of Cell Reselections (NCR)

TCrmaxHyst Additional Time Period Before the UE Can ExitHigh-Mobility (TCRMaxHyst)

SHCSRatPre SHCS,RAT Configuration Tag

SHCSRatInter-System Measurement Trigger Threshold forHCS Cell Reselection (SHCS,RAT)

QHcsEcNoQuality Threshold Level for Applying Prioritised

Hierarchical Cell Reselection (QHcs) WhenMeasurement Quantity is CPICH Ec/No

QHcsRSCPQuality Threshold Level for Applying Prioritised

Hierarchical Cell Reselection(QHcs) WhenMeasurement Quantity is CPICH RSCP

QhcsEcN0Sib11

Quality Threshold Level for Applying PrioritisedHierarchical Cell Reselection (Qhcs) of

Neighbouring Cell When Measurement Quantityis CPICH Ec/No Broadcasted in SIB11

QhcsRscpSib11

Quality Threshold Level for Applying Prioritised

Hierarchical Cell Reselection (Qhcs) ofNeighbouring Cell When Measurement Quantityis CPICH RSCP Broadcasted in SIB11

QhcsEcN0Sib12


Hierarchical Cell Reselection (Qhcs) ofNeighbouring Cell When Measurement Quantityis CPICH Ec/No Broadcasted in SIB12

QhcsRscpSib12


Hierarchical Cell Reselection (Qhcs) ofNeighbouring Cell When Measurement Quantityis CPICH RSCP Broadcasted in SIB12

QHyst1S Reselection Hysteresis 1 of Serving Cell (Qhyst1s)

QHyst2S Reselection Hysteresis 2 of Serving Cell (Qhyst2s)

QHyst1SPchReselection Hysteresis 1 of Serving Cell for UE inCELL_PCH or URA_PCH State (Qhyst1s,PCH)

QHyst2SPchReselection Hysteresis 2 of Serving Cell for UE inCELL_PCH or URA_PCH State (Qhyst2s,PCH)





QHyst1SFachReselection Hysteresis 1 of Serving Cell for UEin CELL_FACH State (Qhyst1s,FACH )

QHyst2SFachReselection Hysteresis 2 of Serving Cell for UEin CELL_FACH State (Qhyst2s,FACH )

Qoffset1SNSib11Quality Offset 1(Qoffset1s,n ) Between Serving Celland Neighbouring Cell Broadcasted in SIB11

Qoffset2SNSib11Quality Offset 2(Qoffset2s,n ) Between Serving Celland Neighbouring Cell Broadcasted in SIB11

Qoffset1SNSib12Quality Offset 1 (Qoffset1s,n) Between Serving Celland Neighbouring Cell Broadcasted in SIB12

Qoffset2SNSib12Quality Offset2 (Qoffset2s,n) Between Serving Celland Neighbouring Cell Broadcasted in SIB12

TempOffset1Sib11(utranRelation)

Temporary Offset When Measurement Quantity is

CPICH RSCP (Temporary_offset1) Broadcasted inSIB11(utranRelation)

TempOffset1Sib11(gsmRelation)


CPICH RSCP (Temporary_offset1) Broadcasted inSIB11(gsmRelation)

TempOffset2Sib11


CPICH Ec/No (Temporary_offset2) Broadcasted inSIB11

TempOffset1Sib12(utranRelation)


CPICH RSCP (Temporary_offset1) Broadcasted inSIB12(utranRelation)

TempOffset1Sib12(gsmRelation)


CPICH RSCP (Temporary_offset1) Broadcasted in

SIB12(gsmRelation)

TempOffset2Sib12


CPICH Ec/No (Temporary_offset2) Broadcasted inSIB12

PenaltyTimeSib11(utranRelation) Penalty Time in SIB11(s)(utranRelation)

PenaltyTimeSib11(gsmRelation) Penalty Time in SIB11(s)(gsmRelation)

PenaltyTimeSib12(utranRelation) Penalty Time in SIB12(s)(utranRelation)

PenaltyTimeSib12(gsmRelation) Penalty Time in SIB12(s)(gsmRelation)

TReselection Cell Reselection Timer Value (Treselections)

TReselectionPchCell Reselection Timer Value for UE in

CELL_PCH or URA_PCH State (Treselections,PCH)

TReselectionFachCell Reselection Timer Value for UE inCELL_FACH State (Treselections,FACH)

SpSfPreSpeed Dependent Scaling Factor for TreselectionConfiguration Tag

SpSf Speed Dependent Scaling Factor for Treselection

InterFreqSfPreInter-frequency Scaling Factor for TreselectionConfiguration Tag

InterFreqSf Inter-frequency Scaling Factor for Treselection

InterRatSfPreInter-RAT Scaling Factor for TreselectionConfiguration Tag





InterRatSf Inter-RAT Scaling Factor for Treselect ion

TBarred Cell Barred Time(Tbarred)

ACBarredOmcr Access Class N Barred Indicator (N=0…9)

CellBarredInd Cell Barred Indicator

CellRsvExt Cell Reservation Extension

DltaQRxLevMinPrIncrement to the Minimum Required ReceivedLevel in the Cell Configuration Tag

DltaQRxLevMinIncrement to the Minimum Required ReceivedLevel in the Cell (DeltaQrxlevmin)

DtQrxLvMnSib11Pr DeltaQrxlevmin in SIB11 Configuration Tag

DtQrxLvMnSib11 DeltaQrxlevmin in SIB11(dBm)

DtQrxLvMnSib12Pr DeltaQrxlevmin in SIB12 Configuration Tag

DtQrxLvMnSib12 DeltaQrxlevmin in SIB12(dBm)

InFreqReselInd Intra-frequency Cell Reselection Indicator

QualMeasQuality measure for Cell Selection andReselection

Sib3orSib4 Broadcast in either SIB3 or SIB4

HcsSrvCelInfoPre HCS Serving Cell Information Configuration Tag

FDDInterFMeasInd UE Inter-frequency FDD Measurement Indicator

InterRatMIndPre UE Inter-RAT Measurement Indicator

Sib11orSib11bis((utranRelation)Broadcast in either SIB11 orSIB11bis((utranRelation)

Sib11orSib11bis(gsmRelation)Broadcast in either SIB11 orSIB11bis(gsmRelation)

FachMeasKFACH Measurement Occasion Cycle LengthCoefficient

SIB12Ind SIB12 Indicator

SIB4Ind SIB4 Indicator

QqulmnOffstPre Qqualmin-Offset Present

QqualminOffset Qqualmin-offset

QrxlvmnOffstPre Qrxlevmin-Offset Present

QrxlevminOffset Qrxlevmin-offset

MeasPrio(utranRelation) Measurement Priority of Neighboring CellMeasPrio(gsmRelation) Measurement Priority of Neighboring GSM Cell

OperatorUseInd Cell Reserved for Operator Use

QhcsSib11Quality Threshold Level (Qhcs) of NeighbouringCell Broadcasted in SIB11

QhcsSib12Quality Threshold Level (Qhcs) of NeighbouringCell Broadcasted in SIB12

QqualMinSib11 Qqualmin in SIB11

QqualMinSib12 Qqualmin in SIB12

QrxLevMinSib11(externalUtranCell) Qrxlevmin in SIB11(externalUtranCell)





QrxLevMinSib11(externalGsmCell) Qrxlevmin in SIB11(externalGsmCell)

QrxLevMinSib12(externalUtranCell) Qrxlevmin in SIB12(externalUtranCell)

QrxLevMinSib12(externalGsmCell) Qrxlevmin in SIB12(externalGsmCell)

Sib11orSib12 Broadcast in SIB11 or SIB12

AbsPriReselSwch Absolute Pirority Reselection Criteria Switch

ServCelPriority Absolute Priority of Serving Cell for CellReselection

SprioritySearch1CPICH RSCP Measurement Trigger Threshold for

Absolute Pirority Reselection Criteria (Sprioritysearch1)

SprioritySearch2CPICH EcN0 Measurement Trigger Threshold for

Absolute Priority Reselection Criteria (Sprioritysearch2)

ThreshServingLowServing Cell Reselection Threshold for AbsolutePriority Reselection Criteria(Threshserving,low)

UtranInterFNum Number of UTRAN Centre FrequenciesEutranInterFNum Number of EUTRAN Centre Frequencies

GsmCellGroupNum Number of GSM Frequency Groups

UtranHighThresh[MAX_NUM_UTRAN_FREQ]

Reselection Threshold for Inter-frequency Layersof High Priority in UTRAN (Threshx,high)

UtranLowThresh[MAX_NUM_UTRAN_FREQ]

Reselection Threshold for Inter-frequency Layersof Low Priority in UTRAN(Threshx,low)

EutranHighThresh[MAX_NUM_EUTRAN_FREQ]

Reselection Threshold for Inter-RAT Layers ofHigh Priority in EUTRAN(Threshx,high)

EutranLowThresh[MAX_NUM_EUTR AN_FREQ]

Reselection Threshold for Inter-RAT Layers ofLow Priority in EUTRAN(Threshx,low)

GeranHighThresh[MAX_NUM_GERAN_CELL_GROUP]

Reselection Threshold for Inter-RAT Layers ofHigh Priority in GERAN(Threshx,high)

GeranLowThresh[MAX_NUM_GERAN_CELL_GROUP]

Reselection Threshold for Inter-RAT Layers ofLow Priority in GERAN(Threshx,low)

QrxlevminFDD[MAX_NUM_UTRAN_ FREQ]

Qrxlevmin of UTRAN for CellReselection(QrxlevminFDD)

QqualminFDD[MAX_NUM_UTRAN_ FREQ]

Qqualmin of UTRAN for CellReselection(QqualminFDD)

QrxlevminGSM[MAX_NUM_GERAN _CELL_GROUP]

Qrxlevmin of GSM for CellReselection(QrxlevminGSM)

QrxlevminEUTRA[MAX_NUM_EUTR AN_FREQ]

Qrxlevmin of EUTRAN for CellReselection(QrxlevminEUTRA)

UtranPriority[MAX_NUM_UTRAN_FREQ]

Absolute Priority of Inter-Frequency Layers inUTRAN

EutranPriority[MAX_NUM_EUTRAN_ FREQ]

Absolute Priority of Inter-RAT Layers in EUTRAN

GeranPriority[MAX_NUM_GERAN_CELL_GROUP]

Absolute Priority of Inter-RAT Layers in GERAN

UtranUARFCN[MAX_NUM_UTRAN_ FREQ]

UTRAN Absolute Radio Frequency ChannelNumber

GsmBandIndicator[MAX_NUM_GER AN_CELL_GROUP]

GSM Band Indicator





StartARFCN[MAX_NUM_GERAN_CELL_GROUP]

GSM Starting ARFCN

DlEARFCN[MAX_NUM_EUTRAN_FREQ]

Downlink EUTRAN Absolute Radio FrequencyChannel Number

AllowMeasBand[MAX_NUM_EUTRAN_FREQ]

EUTRAN Allowed Measurement Bandwidth

4.1.2 Parameter Configuration

4.1.2.1 Minimum Required Quality Level in the Cell (Qqualmin)

OMCR

Interface Path: View->Configuration Management->RNC NE->RNC Radio Resource

Management->UtranCell->UtranCellXX->Cell Selection and Reselection-> Cell Selection

and ReselectionX-> Modify Advanced Parameter-> Minimum Required Quality Level in

the Cell (Qqualmin)

Parameter Configuration

This parameter indicates the minimum required quality level of the cell which satisfies

the condition of being selected or reselected by UE. When the quality measure is CPICH

Ec/No, only the measured quality of the cell is over Qqualmin can the cell be selected.

It‟s -18dB by default.

If value of the parameter is increased, it‟s harder for the cell to satisfy the condition ofbeing selected.

If value of the parameter is decreased, it‟s easier for the cell to satisfy the condition of

being selected.

4.1.2.2 Minimum Required Received Level in the Cell (Qrxlevmin)

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio Resource


and ReselectionX-> Modify Advanced Parameter-> Minimum Required Received Level

in the Cell (Qrxlevmin)


This parameter indicates the minimum required received power level of the cell which

satisfies the condition of being selected or reselected by UE. When the quality measure

is CPICH RSCP, only the measured received power level of the cell is over Qrxlevmin

can the cell be selected.





If value of the parameter is increased, it‟s harder for the cell to satisfy the condition ofbeing selected.

If value of the parameter is decreased, it‟s easier for the cell to satisfy the condition of

being selected.

4.1.2.3 Maximum Allowed UL TX Power of RACH(dBm)

OMCR


Management->UtranCell->UtranCellXX-> Modify Advanced Parameter->PRACH->

Maximum Allowed UL TX Power of RACH(dBm)


This parameter indicates the maximum allowed UL transmission power of RACH.

If value of configuration is increased, the maximum allowed UL transmission power of

RACH increases.

If value of configuration is decreased, the maximum allowed UL transmission power of

RACH decreases.

4.1.2.4 Maximum Allowed UL TX Power of RACH()(dBm)(externalUtranCell)

OMCR


Management->External Utran Cell-> External Utran CellXX-> Modify Advanced

Parameter-> Maximum Allowed UL TX Power of RACH(dBm)


This parameter indicates the maximum allowed UL transmission power of RACH of

neighbor cell not in this RNC.

If value of configuration is increased, the maximum allowed UL transmission power ofRACH increases.

If value of configuration is decreased, the maximum allowed UL transmission power of

RACH decreases.

4.1.2.5 Use of HCS (utranCell)

OMCR






Management->UtranCell->UtranCellXX-> Cell Setup Parameter->Use of HCS


This parameter indicates whether the UTRAN Cell HCS is used or not.

1: Not Used

2: Used

4.1.2.6 Use of HCS (utranRelation)

OMCR


Management->Neighbouring Cell-> Neighbouring Cell XX-> Use of HCS


This parameter indicates whether the UTRAN Neighbor Cell HCS is used or not.

1: Not Used

2: Used

4.1.2.7 Use of HCS (gsmRelation) OMCR


Management->Utran Cell-> Utran Cell XX->GSM Neighbouring Cell-> Use of HCS


This parameter indicates whether the GSM Neighbor Cell HCS is used or not.

1: Not used.

2: Used.

4.1.2.8 Sintrasearch Configuration Tag

OMCR



and ReselectionX-> Modify Advanced Parameter-> S-intrasearch Configuration Tag






This parameter is a switch indicating whether S intrasearch is configured or not. If the value

is False, Sintrasearch is not configured to UE, and UE performs the intra-frequency

measurement. If the value is True, S intrasearch is configured to UE, and UE judges whether

to perform the intra-frequency measurement. For the judgment rule, see 3.2.4. The

parameter decription in For the description, see TS 25.304

0: Not configured to UE.

1: Configured to UE.

4.1.2.9 Intra-Frequency Measurement Trigger Threshold for Cell Reselection

(Sintrasearch)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Intra-Frequency Measurement

Trigger Threshold for Cell Reselection (Sintrasearch)


This parameter indicates the intra-frequency measurement triggering threshold for cell

reselection (Sintrasearch) used by UE to judge whether intra-frequency measurement

should be performed. When HCS is not used, if the quality of serving cell exceeds

Sintrasearch, UE may choose to not perform intra-frequency measurement. If the quality of

serving cell is not larger than S intrasearch or if Sintrasearch is not configured, UE performs

intra-frequency measurement. For more information, see TS 25.304.

When Sintrasearch is delivered to the UE, if its value is increased, it‟s easier for the UE totrigger intra-frequency measurement.

If value of the parameter is decreased, it‟s harder for the UE to trigger intra -frequency

measurement.

4.1.2.10 Sintersearch Configuration Tag

OMCR



and ReselectionX-> Modify Advanced Parameter-> S-intersearch Configuration Tag






This parameter is a switch which indicates whether S intersearch is configured or not. If the

value is False, Sintersearch is not configured to UE, and UE performs the inter-frequency

measurement. If the value is True, S intersearch is configured to UE, and UE judges whether

to perform the inter-frequency measurement. For more information, see TS 25.304.

0: Not configured to UE.


4.1.2.11 Inter-Frequency Measurement Trigger Threshold for Cell Reselection

(Sintersearch)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Inter-Frequency Measurement

Trigger Threshold for Cell Reselection (Sintersearch)


This parameter indicates the inter-frequency measurement triggering threshold for cell

reselection (Sintersearch) used by UE to judge whether inter-frequency measurement

should be performed. When HCS is not used, if the quality of serving cell exceeds

Sintersearch, UE may choose to not perform inter-frequency measurement. If the quality of

serving cell is not larger than Sintersearch

or if Sintersearch

is not configured, UE performs

inter-frequency measurement. For more information, see TS 25.304.

When Sintersearch is delivered to the UE, if its value is increased, it‟s easier for the UE to

trigger inter- frequency measurement.

If value of the parameter is decreased, it‟s harder for the UE to trigger inter -frequency

measurement.

4.1.2.12 Inter-system Information Configuration Tag

OMCR



and ReselectionX-> Modify Advanced Parameter-> Inter-system Information

Configuration Tag


This parameter is a switch indicating whether inter-RAT information parameters used for

cell reselection are configured or not. If the value is False, inter -RAT information

parameters are not configured to UE, and UE performs the inter-RAT measurement. If





the value is True, inter-RAT information parameters are configured to UE, and UE

judges whether to perform the inter-RAT measurement. For more information, see TS

25.304.

O: Not configured to UE.


4.1.2.13 Inter-System Measurement Trigger Threshold for Cell Reselection

(Ssearch,RAT)

OMCR

Path: Configuration Management->RNC NE->RNC Radio Resource Management-

>UtranCell->UtranCellXX->Cell Selection and Reselection-> Cell Selection and

ReselectionX-> Modify Advanced Parameter-> Inter-System Measurement Trigger

Threshold for Cell Reselection (Ssearch,RAT)


This parameter indicates the inter-RAT measurement triggering threshold for cell

reselection (Ssearch,RAT) used by UE to judge whether inter-RAT measurement should be

performed. When HCS is not used, if the quality of serving cell exceeds Ssearch,RAT, UE

may choose to not perform inter-RAT measurement. If the quality of serving cell is not

larger than Ssearch,RAT or if Ssearch,RAT is not configured, UE performs inter-RAT

measurement. For more information, see TS 25.304.

When Ssearch,RAT is delivered to the UE, if its value is increased, it‟s easier for the UE totrigger inter-RAT measurement.

If value of the parameter is decreased, it‟s harder for the UE to trigger inter -RAT

measurement.

4.1.2.14 High HCS Priority Inter-System Cell Measurement Threshold for Cell

Reselection (Slimit,SearchRAT)

OMCR


>UtranCell->UtranCellXX->Cell Selection and Reselection-> Cell Selection and

ReselectionX-> Modify Advanced Parameter-> High HCS Priority Inter-System Cell

Measurement Threshold for Cell Reselection (S limit,SearchRAT)


This parameter indicates the inter-RAT measurement triggering threshold for higher

HCS priority cell reselection(S limit,SearchRAT) used by UE to judge whether inter-RAT

measurement should be performed. When HCS is used, if Srxlev<=SHCS,RAT

or SHCS,RAT





is not configured, UE performs inter-RAT measurement. In case Srxlev>S HCS,RAT, if

Squal>Slimit,SearchRAT, UE does not perform inter-RAT measurement. If Squal

<=S limit,SearchRAT, performs inter-RAT measurement on the neighbor inter-RAT cells

having higher HCS priority. For more information, see TS 25.304.

In case Srxlev>SHCS,RAT, if value of the parameter is increased, it‟s easier to trigger

measurement of inter-RAT neighbor cells with a HCS priority equals to or higher than

that of the serving cell.

If value of the parameter is decreased, it‟s harder for the UE to trigger inter -RAT

measurement.

4.1.2.15 MBMS Preferred Layer Indicator for Frequencies in SAC

OMCR


>UtranCell Information in MBMS Serive Area-> UtranCell Information in MBMS Serive

AreaX ->Modify Advanced Parameter->MBMS Preferred Layer Indicator for F requencies

in SAC


This parameter indicates whether the MBMS cell is on MBMS preferred layer in SAC.

0: Non Preferred Layer

1: Preferred Layer

4.1.2.16 HCS_PRIO

OMCR


>UtranCell->UtranCellXX->Modify Advanced Parameter->UtranCell-> HCS_PRIO


This parameter indicates the HCS priority level (0-7) for the access cell. 7 is the highest

priority, 0 is the lowest priority. It‟s 0 by default.

4.1.2.17 HCS_PRIO

OMCR


Management->External UTRAN Cell-> External UTRAN CellXX->Modify Advanced

Parameter-> HCS_PRIO






This parameter indicates the HCS priority level (0-7) for the neighbor cells. 7 is the

highest priority, 0 is the lowest priority. It‟s 0 by default.

4.1.2.18 HCS_PRIO

OMCR

Path: View-> View->Configuration Management->RNC NE->RNC Radio Resource

Management->External GSM Cell-> External GSM Cell XX->Modify Advanced

Parameter-> HCS_PRIO


This parameter indicates the HCS priority level (0-7) for the GSM cells. 7 is the highest

priority, 0 is the lowest priority. It‟s 0 by default.

4.1.2.19 Qoffmbms(dB)

OMCR


>UtranCell->UtranCell XX-> Modify Advanced Parameter->MBMS Configuration

Information In A Cell-> Qoffmbms(dB)


This parameter indicates the additional offset added to cells belonging to the MBMS

preferred frequency layer when judging the cell-ranking criterion R of cell reselection for

the non-HCS cell. The parameter is part of the judgment criterion R. If value of the

parameter is increased, the measurement value of the cell obtained through criterion R

is greater. If value of the parameter is decreased, the measurement value of the cell

obtained through criterion R is smaller.

4.1.2.20 HCS_OFFmbms

OMCR

Path: Interface Path: Configuration Management->RNC NE->RNC Radio Resource

Management->UtranCell->UtranCell XX-> Modify Advanced Parameter->MBMS

Configuration Information In A Cell-> HCS_OFFmbms


This parameter indicates the HCS priority offset added to the HCS cells belonging to the

MBMS preferred frequency layer when UE in the cell is in low mobility state.





When the HCS cell is in low-mobility state: If value of the parameter is increased, the

scale of HCS priority increase gets larger. If value of the parameter is decreased, the

scale of HCS priority increase gets smaller.

4.1.2.21 Measurement Trigger Threshold for HCS Cell Reselection (SsearchHCS)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Measurement Trigger Threshold

for HCS Cell Reselection (SsearchHCS)


This parameter indicates the triggering threshold for HCS cell reselection(S searchHCS)

used by UE to judge whether intra-frequency and inter-frequency measurements should

be performed. When UE‟s serving cell belongs to HCS, if the receive d level of serving

cell is not larger than SsearchHCS or if SsearchHCS is not configured, UE performs

measurements on all intra-frequency and inter-frequency neighbor cell. For more

information, see TS 25.304.

When SsearchHCS is delivered to the UE and if its value is increased, it‟s easier for the UEto trigger the measurement of inra-frequency and inter-frequency cells. If value of the

parameter is decreased, it‟s harder for the UE to trigger the measurement of inra -

frequency and inter-frequency cells.

4.1.2.22 SsearchHCS Configuration Tag

OMCR



and ReselectionX-> Modify Advanced Parameter-> S-searchHCS Configuration Tag


This parameter is a switch which indicates whether S searchHCS is configured or not. When

UE‟s serving cell belongs to HCS, if the quality of serving cell is not larger than S searchHCS,

UE performs intra-frequency and inter-frequency measurements. if SsearchHCS is not

configured, UE always performs intra-frequency and inter-frequency measurement. For

more information, see TS 25.304.

0: Not configured for the UE.

1: Configured for the UE.





4.1.2.23 Duration for Evaluating Allowed Amount of Cell Reselection(s) in Case of

Non-HCS Usage (Non-HCS_TCrmax)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Duration for Evaluating Allowed

Amount of Cell Reselection(s) in Case of Non-HCS Usage (Non-HCS_TCrmax)


This parameter indicates the duration for evaluating allowed number of cell reselection(s)

in case of non-HCS usage. It is valid when a judgment is made whether the UE stays inthe high-mobility state.

If value of the parameter is increased, the period for evaluating number of cell

reselections gets longer and it‟s easier for the UE to enter the high -mobility s tate.

If value of the parameter is decreased, the period for evaluating number of cell

reselections gets shorter and it‟s harder for the UE to enter the high -mobility state.

4.1.2.24 Maximum Number of Cell Reselections in Case of Non-HCS Usage (Non-

HCS_NCR)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Maximum Number of Cell

Reselections in Case of Non-HCS Usage (Non-HCS_NCR)


This parameter indicates the maximum number of cell reselections in case of non-HCS

usage. It is valid when a judgment is made whether the UE enters or leaves the high-

mobility s tate.

If value of the parameter is increased: The maximum number of cell reselections within

the period of NoHcsTCrMax in non-HCS cells increases and it‟s harder for the UE to

enter the high-mobility state. The maximum number of cell reselections within the period

of NoHcsTCrMaxHyst in non-HCS cells increases and it‟s easier for the UE to leave thehigh-mobility state.

If value of the parameter is decreased: The maximum number of cell reselections within

the period of NoHcsTCrMax in non-HCS cells decreases and it‟s easier for the UE to

enter the high-mobility state. The maximum number of cell reselections within the period

of NoHcsTCrMaxHyst in non-HCS cells decreases and it‟s harder for the UE to leave thehigh-mobility state.





4.1.2.25 Additional Time Period Before the UE Can Revert to Low-Mobility

Measurements in Case of Non-HCS Usage (Non-HCS_TCRmaxHyst)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Additional Time Period Before the

UE Can Revert to Low-Mobility Measurements in Case of Non-HCS Usage (Non-

HCS_TCRmaxHyst)


This parameter indicates the additional time period before the UE can transit to low-

mobility measurements in case of non-HCS usage.

If value of the parameter is increased, the period for evaluating that the UE transits to

low-mobility state gets longer and the it‟s easier for the UE to enter the low-mobility state.

If value of the parameter is decreased, the period for evaluating that the UE transits to

low-mobility state gets shorter and the it‟s harder for the UE to enter the low -mobilitystate.

4.1.2.26 Duration for Evaluating Allowed Amount of Cell Reselection(s) (TCRmax)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Duration for Evaluating Allowed

Amount of Cell Reselection(s) (TCRmax)


This parameter indicates the period for evaluating allowed number of cell reselection(s)

in case of HCS usage.

If value of the parameter is increased, the period for evaluating number of cell

reselections gets longer and it‟s easier for the UE to enter the high -mobility s tate.

If value of the parameter is decreased, the period for evaluating number of cell

reselections gets shorter and it‟s harder for the UE to enter the high -mobility state.

4.1.2.27 Maximum Number of Cell Reselections (NCR)

OMCR







and ReselectionX-> Modify Advanced Parameter-> Maximum Number of Cell

Reselections (NCR)


This parameter indicates the maximum number of cell reselections in case of HCS

usage. It is valid when a judgment is made whether the UE enters or leaves the high-

mobility s tate.

If value of the parameter is increased: The maximum number of cell reselections within

the period of TCrMax increases and it‟s harder for the UE to enter the high-mobility state.

The maximum number of cell reselections within the period of TCrMaxHyst increases

and it‟s easier for the UE to leave the high-mobility s tate.

If value of the parameter is decreased: The maximum number of cell reselections within

the period of TCrMax decreases and it‟s easier for the UE to enter the high -mobility state.

The maximum number of cell reselections within the period of TCrMaxHyst decreases

and it‟s harder for the UE to leave the high -mobility s tate.

4.1.2.28 Additional Time Period Before the UE Can Exit High-Mobility (TCRMaxHyst)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Additional Time Period Before the

UE Can Exit High-Mobility (TCRMaxHyst)


This parameter indicates the additional time duration before the UE transits from high-

mobility state to low-mobility state in case of HCS usage.

If value of the parameter is increased, the period for evaluating that the UE transits to

low-mobility state gets longer and it‟s easier for the UE to enter the low -mobility s tate.

If value of the parameter is decreased, the period for evaluating that the UE transits to

low-mobility state gets shorter and it‟s harder for the UE to enter the low -mobility state.

4.1.2.29 SHCS,RAT Configuration Tag

OMCR



and ReselectionX-> Modify Advanced Parameter-> SHCS,RAT Configuration Tag






This parameter is a switch which indicates whether SHCS,RAT is configured or not. If

SHCS,RAT is not configured, UE performs inter-RAT measurement, otherwise UE

judges whether to performs inter-RAT measurement. For more information, see TS

25.304.

O: Not configured for UE.

1: Configured for UE.

4.1.2.30 Inter-System Measurement Trigger Threshold for HCS Cell Reselection

(SHCS,RAT)

OMCR



and ReselectionX-> Modify Advanced Parameter-> Inter-System Measurement Trigger

Threshold for HCS Cell Reselection (SHCS,RAT)


This parameter indicates the inter-RAT measurement triggering threshold for HCS cell

reselection(SHCS,RAT) used by UE to judge whether inter-RAT measurement should be

performed. Assume the recei ved level of serving cell is Srxlev, the quality of serving cell

is Squal, when HCS is used, if Srxlev<=SHCS,RAT or SHCS,RAT is not configured, the UE performs

inter-RAT measurement. in case Srxlev>SHCS,RAT

, if Squal>Slimit,SearchRAT

, UE does not

perform inter-RAT measurement. If Squal <=Slimit,SearchRAT, the UE performs measurement

on the neighbor inter-RAT cells having equal or higher HCS priority than the serving cell.

For more information, see TS 25.304.

If value of the parameter is increased, it‟s easier for the UE to trigger inter-RAT

measurement. If value of the parameter is decreased, it‟s harder for the UE to triggerinter-RAT measurement.

4.1.2.31 Quality Threshold Level for Applying Prioritised Hierarchical Cell

Reselection (QHcs) When Measurement Quantity is CPICH Ec/No

OMCR



and ReselectionX-> Modify Advanced Parameter-> Quality Threshold Level for Applying

Prioritised Hierarchical Cell Reselection (QHcs) When Measurement Quantity is CPICH

Ec/No






This parameter indicates the quality threshold levels for applying prioritised hierarchicalcell reselection, when quality measure is CPICH Ec/No.

If value of the parameter is increased, it‟s not easy for the cell to satisfy the criterion H.

If value of the parameter is decreased, it‟s easy for the cell to satisfy the criterion H.


Reselection (QHcs) When Measurement Quantity is CPICH RSCP

OMCR



and ReselectionX-> Modify Advanced Parameter-> Quality Threshold Level for Applying

Prioritised Hierarchical Cell Reselection (QHcs) When Measurement Quantity is CPICHRSCP


This parameter indicates the quality threshold levels for applying prioritised hierarchical

cell reselection, when quality measure is CPICH RSCP.




Reselection (Qhcs) of Neighbouring Cell When Measurement Quantity is

CPICH Ec/No Broadcasted in SIB11

OMCR


Management->UtranCell->UtranCellXX->Neighbouring Cell-> Neighbouring Cell X->

Modify Advanced Parameter-> Quality Threshold Level for Applying Prioritised

Hierarchical Cell Reselection (Qhcs) of Neighbouring Cell When Measurement

Quantity is CPICH Ec/No Broadcasted in SIB11


When cell reselection is set to CPICH Ec/No, this parameter specifies the quality

threshold levels for applying prioritised hierarchical cell reselection. This parameter is

broadcasted in SIB11.









CPICH RSCP Broadcasted in SIB11

OMCR





Quantity is CPICH RSCP Broadcasted in SIB11


When cell reselection is set to CPICH RSCP, this parameter specifies the quality

threshold levels for applying prioritised hierarchical cell reselection. This parameter isbroadcasted in SIB11.





CPICH Ec/No Broadcasted in SIB12

OMCR





Quantity is CPICH Ec/No Broadcasted in SIB12


When cell reselection is set to CPICH Ec/No, this parameter specifies the quality

threshold levels for applying prioritised hierarchical cell reselection. This parameter is

broadcasted in SIB12.









and ReselectionX-> Modify Advanced Parameter-> Reselection Hysteresis 2 of Serving

Cell (Qhyst2s)


This parameter indicates the hysteresis value for FDD cells in case the quality measurefor cell selection and reselection is set to CPICH Ec/No. In cell-ranking criterion R of cellreselection, the R value of serving cell equals to the measured value plus Qhyst2s. Formore information, see TS 25.304.

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R value

of the serving cell will increase.

If value of the parameter is decreased, it‟s easier to trigger cell reselection as the R

value of the serving cell will decrease.

4.1.2.39 Reselection Hysteresis 1 of Serving Cell for UE in CELL_PCH or URA_PCH

State (Qhyst1s,PCH)

OMCR



and ReselectionX-> Advanced Parameter Manager -> Reselection Hysteresis 1 of

Serving Cell for UE in CELL_PCH or URA_PCH State (Qhyst1s,PCH)


This parameter indicates the hysteresis value (Qhyst) when UE is in CELL_PCH

/URA_PCH, in case the quality measure for cell reselection is set to CPICH RSCP. If this

parameter is not provided in SIB4, Qhyst1s will be used. In cell-ranking criterion R of cell

reselection, the R value of serving cell equals to the measured value plus the hysteresis

value. For more information, see TS 25.304.

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R valueof the serving cell will increase.

If value of the parameter is decreased, it‟s easier to trigger cell reselection as the Rvalue of the serving cell will decrease.

4.1.2.40 Reselection Hysteresis 1 of Serving Cell for UE in CELL_PCH or URA_PCH

State (Qhyst1s,PCH)

OMCR


Management->UltranCell->UltranCellXXX->Cell Selection and Reselection -> Advanced





Parameter Manager->Advanced Parameter Manager -> Reselection Hysteresis 2 of

Serving Cell for UE in CELL_PCH or URA_PCH State (Qhyst2s,PCH)


This parameter indicates the hysteresis value (Qhyst) when UE is in CELL_PCH

/URA_PCH, in case the quality measure for cell reselection is set to CPICH Ec/No. If this

parameter is not provided in SIB4, Qhyst2s will be used. In cell-ranking criterion R of cell

reselection, the R value of serving cell equals to the measured value plus the hysteresis

value.

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R valueof the serving cell in state PCH will increase.


value of the serving cell in state PCH will decrease.

4.1.2.41 Reselection Hysteresis 1 of Serving Cell for UE in CELL_FACH State

(Qhyst1s,FACH )

OMCR



Parameter Manager-> Advanced Parameter Manager -> Reselection Hysteresis 1 of

Serving Cell for UE in CELL_FACH State (Qhyst1s,FACH

)


This parameter indicates the hysteresis value (Qhyst) when UE is in CELL_FACH, in

case the quality measure for cell reselection is set to CPICH RSCP. If this parameter is

not provided in SIB4, Qhyst1s will be used. In cell-ranking criterion R of cell reselection,

the R value of serving cell equals to the measured value plus the hysteresis value.

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R valueof the serving cell in state FACH will increase.

If value of the parameter is decreased, it‟s easier to trigger cell reselection as the Rvalue of the serving cell in state FACH will decrease.

4.1.2.42 Reselection Hysteresis 2 of Serving Cell for UE in CELL_FACH State

(Qhyst2s,FACH )

OMCR







Parameter Manager ->Advanced Parameter Manager -> Reselection Hysteresis 2 of

Serving Cell for UE in CELL_FACH State (Qhyst2s,FACH )


This parameter indicates the hysteresis value (Qhyst) when UE is in CELL_FACH, in

case the quality measure for cell reselection is set to CPICH Ec/No. If this parameter is

not provided in SIB4, Qhyst2s will be used. In cell-ranking criterion R of cell reselection,

the R value of serving cell equals to the measured value plus the hysteresis value.


of the serving cell in state FACH will increase.

If value of the parameter is decreased, it‟s easier to trigger cell reselection as the Rvalue of the serving cell in state FACH will decrease.

4.1.2.43 Quality Offset 1(Qoffset1s,n ) Between Serving Cell and Neighbouring Cell

Broadcasted in SIB11

OMCR


Management->UltranCell->UltranCellXXX->Neighbouring Cell -> Advanced Parameter

Manager-> Quality Offset 1(Qoffset1s,n ) Between Serving Cell and Neighbouring Cell



This parameter indicates the quality offset of the serving cell and neighbor cell when the

quality measure is CPICH RSCP. This parameter is required when queues cells in the

cell reselection rule. This parameter is broadcast to UE in SIB11. R of neighbor cell =

measured signal quality of neighbor cell - this offset.


of the neighbor cell will decrease.

If value of the parameter is decreased, it‟s easier to trig ger cell reselection as the R

value of neighbor cell will probably increase.

4.1.2.44 Quality Offset 2(Qoffset2s,n ) Between Serving Cell and Neighbouring Cell


OMCR


Management->UltranCell->UltranCellXXX-> Neighbouring Cell -> Advanced Parameter

Manager-> Quality Offset 2(Qoffset2s,n ) Between Serving Cell and Neighbouring Cell







This parameter indicates the quality offset of the serving cell and neighbor cell when the

quality measure is CPICH Ec/No. This parameter is required when queues cells in the

cell reselection rule. This parameter is broadcast to UE in SIB11. R of neighbor cell =

measured signal quality of neighbor cell - this offset.

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R valueof the neighbor cell will decrease.


value of neighbor cell will increase.

4.1.2.45 Quality Offset 1 (Qoffset1s,n) Between Serving Cell and Neighbouring Cell


OMCR



Manager-> Quality Offset 1 (Qoffset1s,n) Between Serving Cell and Neighbouring

Cell Broadcasted in SIB12


This parameter indicates the quality offset of the serving cell and neighbor cell for

CPICH RSCP. This parameter is required when queue the cells in the cell reselection

rule. This parameter is broadcast to UE in SIB12.


of the neighbor cell will decrease.

If value of the parameter is decrease d, it‟s easier to trigger cell reselection as the Rvalue of neighbor cell will probably increase.

4.1.2.46 Quality Offset 2 (Qoffset2s,n) Between Serving Cell and Neighbouring Cell


OMCR



Manager-> Quality Offset 2 (Qoffset2s,n) Between Serving Cell and Neighbouring

Cell Broadcasted in SIB12






This parameter indicates the quality offset of the serving cell and neighbor cell for

CPICH Ec/No. This parameter is required when queue the cells in the cell reselection


If value of the parameter is increased, it‟s harder to trigger cell resel ection as the R value

of neighbor cell will probably decrease.

If value of the parameter is decreased, it‟s easier to trigger cell reselection as the Rvalue of neighbor cell will probably increase.

4.1.2.47 Temporary Offset When Measurement Quantity is CPICH RSCP

(Temporary_offset1) Broadcasted in SIB11(utranRelation)

OMCR



Manager-> Temporary Offset When Measurement Quantity is CPICH RSCP

(Temporary_offset1) Broadcasted in SIB11


This parameter indicates the temporary offset for CPICH RSCP. The cell belongs to the

HCS structure. This parameter is required when queue the cells in the cell reselection


When the neighbor cell and serving cell have the same HCS priority: If value of the

parameter is increased, it‟s harder to trigger cell reselection as the R value of neighborcell will probably decrease. If value of the parameter is decreased, it‟s easier to trigger

cell reselection as the R value of neighbor cell will probably increase.


(Temporary_offset1) Broadcasted in SIB11(gsmRelation)

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UltranCell->UltranCellXXX-> GSM Neighbouring Cell -> Advanced

Parameter Manager-> Temporary Offset When Measurement Quantity is CPICH

RSCP (Temporary_offset1) Broadcasted in SIB11


This parameter indicates the temporary offset for CPICH RSCP. The cell belongs to the

HCS structure. This parameter is required when queue the cells in the cell reselection







(Temporary_offset1) Broadcasted in SIB12(gsmRelation)

OMCR


Management->UltranCell->UltranCellXXX-> GSM Neighbouring Cell -> Advanced

Parameter Manager -> Temporary Offset When Measurement Quantity is CPICH

RSCP (Temporary_offset1) Broadcasted in SIB11


This parameter indicates the temporary offset of the neighbor cell for CPICH RSCP. The

cell belongs to the HCS structure. This parameter is required when queue the cells in

the cell reselection rule. This parameter is broadcast to UE in SIB12.

When the neighbor cell and serving cell have the same HCS priority: If value of the

parameter is increased, it‟s harder to trigger cell reselection as the R value of neighbor

cell will probably decrease. If value of the parameter is decreased, it‟s easier to trigger

cell reselection as the R value of neighbor cell will probably increase.

4.1.2.52 Temporary Offset When Measurement Quantity is CPICH Ec/No


OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UltranCell->UltranCellXXX-> Neighbouring Cell -> Advanced Parameter

Manager-> Temporary Offset When Measurement Quantity is CPICH Ec/No



This parameter indicates the temporary offset of the neighbor cell for CPICH Ec/No. The

cell belongs to the HCS structure. This parameter is required when queue the cells in

the cell reselection rule. This parameter is broadcast to UE in SIB12.

When the neighbor cell and serving cell have the same HCS priority: If value of theparameter is increased, it‟s harder to trigger cell reselection as the R value of neighbor

cell will probably decrease. If value of the parameter is decreased, it‟s easier to triggercell reselection as the R value of neighbor cell will probably increase.

4.1.2.53 Penalty Time in SIB11(s)(utranRelation)

OMCR





cell reselection rule. When the neighbor cell and serving cell have the same H CS priority:

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R valueof the neighbor cell will decrease. If value of the parameter is decreased, it‟s easier to

trigger cell reselection as the R value of the neighbor cell will probably increase.

4.1.2.56 Penalty Time in SIB12(s)(gsmRelation)

OMCR


Management->UltranCell->UltranCellXXX->GSM Neighbouring Cell -> Advanced

Parameter Manager -> Penalty Time in SIB12(s)


This parameter indicates the effective time of the neighbor cell temporary offset. The cell

belongs to the HCS structure. This parameter is required when queue the cells in the

cell reselection rule. When the neighbor cell and servi ng cell have the same HCS priority:

If value of the parameter is increased, it‟s harder to trigger cell reselection as the R valueof the neighbor cell will decrease. If value of the parameter is decreased, it‟s easier totrigger cell reselection as the R value of the neighbor cell will probably increase.

4.1.2.57 Cell Reselection Timer Value (Treselections)

OMCR


Management->UltranCell-> UtranCellXX->Cell Selection and Reselection-> Cell

Selection and ReselectionX->Advanced Parameter Manager -> Cell Reselection Timer

Value (Treselections)


This parameter indicates the cell reselection timer value. UE will reselect the new cell if

the new cell is best ranked according to the criterion R during a time interval indicated by

Treselection and the new cell can be selected as new serving cell only after extension of

the reselection timer.

If value of the parameter is increased, it‟s harder to trigger cell reselection.

If value of the par ameter is decreased, it‟s easier to trigger cell reselection.

4.1.2.58 Cell Reselection Timer Value for UE in CELL_PCH or URA_PCH State

(Treselections,PCH)

OMCR






Management->UltranCell-> UtranCellXX->Cell Selection and Reselection-> Cell

Selection and ReselectionX-> Advanced Parameter Manager -> Cell Reselection

Timer Value for UE in CELL_PCH or URA_PCH State (Treselections,PCH)


This parameter indicates the cell reselection timer value the UE will use in states

CELL_PCH and URA_PCH if provided in SIB4, otherwise Treselections will be used. UE

will reselect the new cell if the new cell is best ranked according to the cell-ranking

criterion R during a time interval indicated by Treselection and the new cell can be

selected as new serving cell only after extension of the reselection timer.

If value of the parameter is increased, it‟s harder for the UE in state PCH to trigger cell

reselection.

If value of the parameter is decreased, it‟s easier for the UE in state PCH to trigger cell

reselection.

4.1.2.59 Cell Reselection Timer Value for UE in CELL_FACH State

(Treselections,FACH)

OMCR



Parameter Manager-> Cell Reselection Timer Value for UE in CELL_FACH State

(Treselections,FACH)


This parameter indicates the cell reselection timer value the UE will use in state

CELL_FACH. If it is not provided in SIB4 broadcast, the UE will use Treselections. If the

UE is in state CELL_FACH, it will reselect the new cell if the new cell is best ranked

according to the cell-ranking criterion R during a time interval indicated by Treselection

and the new cell can be selected as new serving cell only after extension of the

reselection t imer.

If value of the parameter is increased, it‟s harder for the UE in state FACH to t rigger cell

reselection.

If value of the parameter is decreased, it‟s easier for the UE in state FACH to trigger cell

reselection.

4.1.2.60 Speed Dependent Scaling Factor for Treselection Configuration Tag

OMCR







Parameter Manager-> Speed Dependent Scaling Factor for Treselection Configuration

Tag


This parameter indicates whether scaling factor for cell reselection timer in UE high

mobility state is configured or not. 0: Not configured; 1: Configured.

4.1.2.61 Speed Dependent Scaling Factor for Treselection

OMCR



Parameter Manager->Speed Dependent Scaling Factor for Treselection


This parameter indicates the scaling factor of cell reselection timer in UE‟s high mobilitystate. If value of this parameter is increased, then the reselection timer for the UE in high

mobility state gets longer.

If value of this parameter is decreased, then the reselection timer for the UE in high

mobility state gets shorter.

4.1.2.62 Inter-frequency Scaling Factor for Treselection Configuration Tag

OMCR



Parameter Manager-> Inter-frequency Scaling Factor for Treselection Configuration Tag


This parameter indicates whether scaling factor for cell reselection timer for the inter-

frequency case is configured or not. 0: Not configured; 1: Configured.

4.1.2.63 Inter-frequency Scaling Factor for Treselection

OMCR



Parameter Manager-> Inter-frequency Scaling Factor for Treselection






This parameter indicates the scaling factor for cell reselection timer for the inter-

frequency case. If the parameter is configured, the following situations are possible:

If UE is not detected in high mobility state, the cell reselection timer value for the inter-

frequency case is Treselections or Treselections, PCH or Treselections, FACH multiplexing

Inter-Frequency ScalingFactor for Treselection..

If UE is detected in high mobility state, the cell reselection timer value for the inter-

frequency case is Treselections or Treselections, PCH or Treselections, FACH multiplexing

Inter-Frequency ScalingFactor for Treselection. and Speed dependent ScalingFactor for

Treselection.

If value of this parameter is increased, then the reselection timer for inter-frequency cell

reselection gets longer.

If value of this parameter is decreased, then the reselection timer for inter -frequency cell

reselection gets shorter.

4.1.2.64 Inter-RAT Scaling Factor for Treselection Configuration Tag

OMCR



Parameter Manager-> Inter-RAT Scaling Factor for Treselection Configuration Tag


This parameter indicates whether scaling factor for cell reselection timer for the inter-

RAT case is configured or not. 0: Not configured; 1: Configured.

4.1.2.65 Inter-RAT Scaling Factor for Treselection

OMCR


Management->UltranCell->UltranCellXXX->Cell Selection and Reselection -> AdvancedParameter Manager-> Inter-RAT Scaling Factor for Treselection


This parameter indicates the scaling factor for cell reselect ion timer for the inter-RAT

case. If the parameter is configured, the following situations are possible:

If UE is not detected in high mobility state, the cell reselection timer value for the inter-

RAT case is Treselections or Treselections,PCH or Treselections,FACH multiplexing Inter-

RAT ScalingFactor for Treselection.





If UE is detected in high mobility s tate, the cell reselection timer value for the inter -RAT

case is Treselections or Treselections,PCH or Treselections,FACH multiplexing Inter-RAT

ScalingFactor for Treselect ionand Speed dependent ScalingFactor for Treselection.

If value of this parameter is increased, then the reselection timer for inter-frequency cell

reselection gets longer.

If value of this parameter is decreased, then the reselection timer for inter -frequency cell

reselection gets shorter.

4.1.2.66 Cell Barred Time(Tbarred)

OMCR



Parameter Manager-> Cell Barred Time(Tbarred)


This parameter indicates the barred time of a barred cell.

If value of this parameter is increased, then the UE will not try again accessing the

orignally barred cell until after a longer time.

If value of this parameter is increased, then the UE will try again accessing the orignally

barred cell after a shorter time.

4.1.2.67 Access Class N Barred Indicator (N=0…9)

OMCR



Parameter Manager-> Access Class N Barred Indicator (N=0…9)


This parameter is the access class barred indicator for AC0~AC9. Bit0 ~ bit9 correspond

to AC0~AC9. 0: Barred, 1: Not Barred.

4.1.2.68 Cell Barred Indicator

OMCR



Parameter Manager-> Cell Barred Indicator






This parameter is cell barred indicator. If the cell barred indicator is set to “Barred”, UEs

are not permitted to select/re-select this cell, even for emergency calls.

4.1.2.69 Cell Reservation Extension

OMCR



Parameter Manager-> Cell Reservation Extension


This parameter is cell reservation extension indicator. If it is set “reserved”, if the value of

Intra-frequency Cell Reselection Indicator is “not allowed”, UEs shall behave as if cell

status "barred" is indicated. And if cell status “not barred” is indicated, the "Cell

Reservation Extension" is invalid.

4.1.2.70 Increment to the Minimum Required Received Level in the Cell

Configuration Tag

OMCR



Parameter Manager-> Increment to the Minimum Required Received Level in the Cell

Configuration Tag


This parameter indicates whether DeltaQrxlevmin used for cell reselection is configured

or not.

4.1.2.71 Increment to the Minimum Required Received Level in the Cell

(DeltaQrxlevmin)

OMCR



Parameter Manager-> Increment to the Minimum Required Received Level in the Cell

(DeltaQrxlev min)






This parameter indicates the extension of Qrxlevmin, which means Qrxlevmin =

Qrxlevmin + DeltaQrxlevmin.

4.1.2.72 DeltaQrxlevmin in SIB11 Configuration Tag

OMCR


Management-> External UTRAN cell -> Advanced Parameter Manager->

DeltaQrxlevmin in SIB11 Configuration Tag


This parameter indicates whether DeltaQrxlevmin in SIB11 is configured.

4.1.2.73 DeltaQrxlevmin in SIB11(dBm)

OMCR


Management-> External UTRAN cell -> Advanced Parameter Manager->

DeltaQrxlevmin in SIB11(dBm)


This parameter is the DeltaQrxlevmin increment in SIB11. If present, the actual value of

Qrxlevmin = Qrxlevmin + DeltaQrxlevmin.

4.1.2.74 DeltaQrxlevmin in SIB12 Configuration Tag

OMCR


Management->External UTRAN Cell-> External UTRAN Cell XXX-> Advanced

Parameter Manager -> DeltaQrxlevmin in SIB12 Configuration Tag


This parameter indicates whether DeltaQrxlevmin in SIB12 is configured.

4.1.2.75 DeltaQrxlevmin in SIB12(dBm)

OMC Path


Management-> External UTRAN Cell-> External UTRAN Cell XXX-> Advanced

Parameter Manager -> DeltaQrxlevmin in SIB12(dBm)






This parameter is the DeltaQrxlevmin increment in SIB12. If present, the actual value of

Qrxlevmin = Qrxlevmin + DeltaQrxlevmin.

4.1.2.76 Intra-frequency Cell Reselection Indicator

OMCR


Management->UltranCell->UltranCellXXX-> Cell Selection and Reselection -> Advanced

Parameter Manager-> Intra-frequency Cell Reselection Indicator


This parameter is intra-frequency cell reselection indicator. If cell is barred, if the value of

this parameter is “ Allowed”, UE is allowed to select other intra-frequency cell in case it

satisfies the cell selection/relection condition. If it is set “Not Allowed”, when cell is

barred, UE will not select another intra-frequency cell.

4.1.2.77 Quality measure for Cell Selection and Reselection

OMCR


Management->UltranCell->UltranCellXXX-> Cell Selection and Reselection -> Advanced

Parameter Manager-> Measurement Quality for Cell Selection and Reselection


This parameter indicates the quality measure for cell selection and reselection.

4.1.2.78 Broadcast in either SIB3 or SIB4

OMCR


Management->UltranCell->UltranCellXXX->Cell Selection and Reselection ->

Broadcast in either SIB3 or SIB4


This parameter indicates whether the cell selection/reselection parameters are

broadcast in SIB3 or SIB4. It‟s SIB3 by default.

4.1.2.79 HCS Serving Cell Information Configuration Tag

OMCR







Parameter Manager-> HCS Serving Cell Information Configuration Tag


This parameter indicates whether HCS serving cell information is configured or not.

4.1.2.80 UE Inter-frequency FDD Measurement Indicator

OMCR


Management->UltranCell->UltranCellXXX->Advanced Parameter Manager->UE

Measurement Configuration Information Block->UE Inter-frequency FDD Measurement

Indicator


This parameter indicates whether UE performs FDD inter -frequency measurement in CELL_FACH

state

4.1.2.81 UE Inter-RAT Measurement Indicator

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UltranCell->UltranCellXXX->Advanced Parameter Manager->UE

Measurement Configuration Information Block->UE Inter-RAT Measurement Indicator


This parameter indicates whether UE performs inter-RAT measurement In CELL_FACH s tate.

4.1.2.82 Broadcast in either SIB11 or SIB11bis((utranRelation)

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx -> Neighbouring Cell ->Neighbouring

Cell xxx -> Modify -> Broadcast in either SIB11 or SIB11bis


This parameter indicates UTRAN neighbour cell broadcast in either SIB11 or SIB11bis, the default

parameter is broadcast in SIB11. If there are so many neighbour cells, and the size of system

message larger than 3552bit, select part of cells broadcast in SIB11bis





4.1.2.83 Broadcast in either SIB11 or SIB11bis(gsmRelation)

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UTRAN Cell -> UTRAN Cell xxx -> GSM Neighbouring Cell ->Modify->

Broadcast in either SIB11 or SIB11bis(gsmRelation)


This parameter indicates GSM neighbour cell broadcast in either SIB11 or SIB11bis, the default

parameter is broadcast in SIB11. If there are so many neighbour cells, and the size of system

message larger than 3552bit, select part of cells broadcast in SIB11bis

4.1.2.84 FACH Measurement Occasion Cycle Length Coefficient

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx -> UE Measurement Configuration In

System Information Block-> FACH Measurement Occasion Cycle Length Coefficient


This parameter indicates FACH measurement occasion cycle Length coefficient. It will function

FACH mesurement neighbour cell occasion when in FACH status, the default parameter is 3, and

is the minimum value according to protocol.

4.1.2.85 SIB12 Indicator

OMCR


Management->UTRAN Cell ->Advanced Parameter Manager-> UTRAN Cell-> SIB12

Indicator


This parameter indicates if SIB12 will broadcast in cell, the default parameter is not broadcast.

4.1.2.86 SIB4 Indicator

OMCR


Management->UTRAN Cell ->Advanced Parameter Manager-> UTRAN Cell-> SIB4

Indicator






This parameter indicates if SIB4 will broadcast in cell, the default parameter is not broadcast.

4.1.2.87 Qqualmin-offset Present

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->Cell Selection and Reselection->

Advanced Parameter Manager-> Qqualmin-offset Present


This parameter indicates whether the Qqualmin-offset will be broadcast in SIB3.

4.1.2.88 Qqualmin-offset OMCR



Advanced Parameter Manager-> Qqualmin-offset


The parameter indicates offset to Qqualmin, used to restrict PLMN ping-pong reselection when

cell selection and reselection.

4.1.2.89 Qrxlevmin-Offset Present

OMCR



Advanced Parameter Manager-> Qrxlevmin-offset Present


The parameter indicates whether the Qrxlevmin-offset will be broadcast in SIB3.

4.1.2.90 Qrxlevmin-offset

OMCR



Advanced Parameter Manager-> Qrxlevmin-offset






The parameter indicates offset to Qrelevmin, used to restrict PLMN ping-pong reselection when


4.1.2.91 Measurement Priority of Neighboring Cell

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->Neighbouring Cell -> Measurement

Priority of Neighboring Cell




4.1.2.92 Measurement Priority of Neighboring GSM Cell

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->GSM Neighbouring Cell ->

Measurement Priority of Neighboring GSM Cell


The parameter indicates offset to Qrelevmin, used to restrict PLMN ping-pong reselection whencell selection and reselection.

4.1.2.93 Cell Reserved for Operator Use

OMCR



Advanced Parameter Manager-> Qrxlevmin-offset Presen




4.1.2.94 Quality Threshold Level (Qhcs) of Neighbouring Cell Broadcasted in SIB11

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->GSM Neighbouring Cell -> Advanced





Parameter Manager-> Quality Threshold Level (Qhcs) of Neighbouring Cell



When cell selection and reselection is set to CPICH RSCP, this parameter specifies the quality

threshold levels for applying prioritised hierarchical cell reselection. This parameter is broadcasted

in SIB11.

4.1.2.95 Quality Threshold Level (Qhcs) of Neighbouring Cell Broadcasted in SIB12

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->GSM Neighbouring Cell -> Advanced

Parameter Manager-> Quality Threshold Level (Qhcs) of Neighbouring Cell



In the la yered cell structure, this parameter indicates the qua lity threshold level of the neighboring

cell when performing the cell reselection for CPICH RSCP. This parameter is broadcast to UE in

SIB12.

4.1.2.96 Qqualmin in SIB11

OMCR


Management->External UTRAN Cell -> External UTRAN Cell xxx->Advanced Parameter

Manager-> Qqualmin in SIB11(dB)


This parameter indicates the minimum requried quality level of the cell which satisfies the

condition of being selected or reselected by UE. When the measurement quantity is CPICH Ec/No,

only the measured quality of the cell is over Qqualmin can the cell be selected. This parameter is

the Qqualmin broadcast in SIB11.

4.1.2.97 Qqualmin in SIB12

OMCR



Manager-> Qqualmin in SIB12(dB)






This parameter indicates the minimum requried quality level of the cell which satisfies the

condition of being selected or reselected by UE. When the measurement quantity is CPICH Ec/No,

only the measured quality of the cell is over Qqualmin can the cell be selected. This parameter is

the Qqualmin broadcast in SIB12.

4.1.2.98 Qrxlevmin in SIB11(externalUtranCell)

OMCR



Manager-> Qrxlevmin in SIB11(dBm)


This parameter indicates the minimum required received power level of the cell which satisfies the

condition of being selected or reselected by UE. When the m easurement quantity is CPICH RSCP,

only the measured received power level of the cell is over Qrxlevmin can the cel l be selected. This

parameter is the Qrxlevmin broadcast in SIB11.

4.1.2.99 Qrxlevmin in SIB11(externalGsmCell)

OMCR


Management->External GSM Cell -> External GSM Cell xxx->Advanced Parameter





only the measured received power level of the cell is over Qrxlevmin can the cell be selected. This


4.1.2.100 Qrxlevmin in SIB12(externalUtranCell) OMCR













4.1.2.101 Qrxlevmin in SIB12(externalGsmCell)

OMCR


Management->External GSM Cell -> External GSM Cell xxx->Advanced Parameter







4.1.2.102 Broadcast in SIB11 or SIB12

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->Advanced Parameter Manager -> UE

Measurement Configuration In System Information Block->Broadcast in SIB11 or

SIB12


This parameter indicated whether the configuration of the set of measurement

parameters to be sent in system information is broadcast in SIB11 or SIB12.

4.1.2.103 Absolute Priority Reselection Criteria Switch

OMCR


Management->UTRAN Cell -> UTRAN Cell xxx ->Advanced Parameter Manager ->

UTRAN CELL->Absolute Priority Reselection Criteria Swith


This parameter indicates whether absolute priority Reselection criteria is used. If

AbsPriReselSwch sets as “Open”, RNC will broadcast SIB19,otherwise, SIB19 will not be

broadcasted.





4.1.2.104 Absolute Priority of Serving Cell for Cell Reselection

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UTRAN Cell ->Cell Frequency Reselection and Priority-> Absolute

Priority of Serving Cell for Cell Reselection


This parameter indicates the absolute reselection priority of serving cell.

4.1.2.105 CPICH RSCP Measurement Trigger Threshold for Absolute Priority

Reselection Criteria(Sprioritysearch1)

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> CPICH RSCP

Measurement Trigger Threshold for Absolute Priority Reselection Criteria(Sprioritysearch1)


This parameter is used in the measurement rules for cell re-selection when absolute priorities are

used. It specifies the value of Srxlev in the serving cell controlling the rate of inter-frequency and

inter-RAT measurements.

4.1.2.106 CPICH EcN0 Measurement Trigger Threshold for Absolute Priority

Reselection Criteria(Sprioritysearch2)

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> CPICH EcN0

Measurement Trigger Threshold for Absolute Priority Reselection Criteria(S prioritysearch2)


This parameter is used in the measurement rules for cell re-selection when absolute priorities are

used. It specifies the value of Squal in the serving cell controlling the rate of inter-frequency and

inter-RAT measurements.

4.1.2.107 Serving Cell Reselection Threshold for Absolute Priority Reselection

Criteria(Threshserving,low)

OMCR






Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Serving Cell

Reselection Threshold for Absolute Priority Reselection Criteria(Thresh serving,low)


This parameter is used in the rules for cell reselection when absolute priorities are used. It

specifies the limit for Srxlev in the serving cell below which the UE may perform cell reselection to

a cell on a lower absolute priority layer.

4.1.2.108 Number of UTRAN Centre Frequencies

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Number ofUTRAN Centre Frequencies


This parameter indicates the number of inter -frequency layers in UTRAN.

4.1.2.109 Number of EUTRAN Centre Frequencies

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UTRAN Cell ->Cell Frequency Reselection and Priority-> Number of

EUTRAN Centre Frequencies


This parameter indicates the number of EUTRA centre frequencies.

4.1.2.110 Number of GSM Frequency Groups

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Number of

GSM Frequency Groups


This parameter indicates the number of GSM frequency groups





4.1.2.111 Reselection Threshold for Inter-frequency Layers of High Priority in

UTRAN (Threshx,high)

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Reselection

Threshold for Inter-frequency Layers of High Priority in UTRAN (Thresh x,high)


This parameter indicates the threshold for cell reselection to a higher priority UTRAN cell .

4.1.2.112 Reselection Threshold for Inter-Frequency Layers of Low Priority in

UTRAN(Threshx,low

)

OMCR



Threshold for Inter-Frequency Layers of Low Priority in UTRAN(Threshx,low)


This parameter indicates the threshold for cell reselection to a lower priority UTRAN cell .

4.1.2.113 Reselection Threshold for Inter-RAT Layers of High Priority in

EUTRAN(Threshx,high)

OMCR



Threshold for Inter-RAT Layers of High Priority in EUTRAN(Threshx,high)


This parameter indicates the threshold for cell reselection to a higher priority UTRAN cell .

4.1.2.114 Reselection Threshold for Inter-RAT Layers of Low Priority in

EUTRAN(Threshx,low)

OMCR



Threshold for Inter-RAT Layers of Low Priority in EUTRAN(Thresh x,low)






This parameter indicates the threshold for cell reselection to a lower priority UTRAN cell .

4.1.2.115 Reselection Threshold for Inter-RAT Layers of High Priority in

GERAN(Threshx,high)

OMCR



Threshold for Inter-RAT Layers of High Priority in GERAN(Threshx,high)


This parameter indicates the threshold for cell reselection to a higher priority GERAN cell.

4.1.2.116 Reselection Threshold for Inter-RAT Layers of Low Priority in

GERAN(Threshx,low)

OMCR



Threshold for Inter-RAT Layers of Low Priority in GERAN(Threshx,low)


This parameter indicates the threshold for cell reselection to a lower priority GERAN cell.

4.1.2.117 Qrxlevmin of UTRAN for Cell Reselection(QrxlevminFDD)

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Qrxlevmin of

UTRAN for Cell Reselection(QrxlevminFDD)


This parameter indicates the minimum required received power level of UTRAN cell which

satisfies the condition of being reselected by UE.

4.1.2.118 Qqualmin of UTRAn for Cell Reselection(QqualminFDD)

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Qqualmin of

UTRAn for Cell Reselection(QqualminFDD)






This parameter indicates the minimum required quality level of UTRAN cell which satisfies the

condition of being reselected by UE.

4.1.2.119 Qrxlevmin of GSM for Cell Reselection(QrxlevminGSM)

OMCR



GSM for Cell Reselection(QrxlevminGSM)


This parameter indicates the minimum required received power level of GERAN cell whichsatisfies the condition of being reselected by UE.

4.1.2.120 Qrxlevmin of EUTRAN for Cell Reselection(QrxlevminEUTRA)

OMCR



EUTRAN for Cell Reselection(QrxlevminEUTRA)


This parameter indicates the minimum required received power level of EUTRAN cell which

satisfies the condition of being reselected by UE.

4.1.2.121 Absolute Priority of Inter-Frequency Layers in UTRAN

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Absolute

Priority of Inter-Frequency Layers in UTRAN


This parameter indicates the absolute reselection priority of inter-frequency layers in UTRAN.

4.1.2.122 Absolute Priority of Inter-RAT Layers in EUTRAN

OMCR







Priority of Inter-RAT Layers in EUTRAN


This parameter indicates the absolute reselection priority of inter-rat layers in EUTRAN.

4.1.2.123 Absolute Priority of Inter-RAT Layers in GERAN

OMCR



Priority of Inter-RAT Layers in GERAN


This parameter indicates the absolute reselection priority of inter -RAT layers in GERAN.

4.1.2.124 UTRAN Absolute Radio Frequency Channel Number

OMCR



Priority of Inter-RAT Layers in GERAN


This parameter indicates the occupied uplink carrier central frequency p oint of the cell. It

is UTRA absolute radio frequency channel No., corresponding to the central frequency

of the carrier used by the uplink channel.

4.1.2.125 GSM Band Indicator

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> GSM Band

Indicator


This parameter identifies which frequency band the BCCH ARFCN GSM cell uses.





4.1.2.126 GSM Starting ARFCN

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement->UTRAN Cell ->Cell Frequency Reselection and Priority-> GSM Starting

ARFCN


This parameter indicates starting absolute radio frequency channel No. of GSM cell.

4.1.2.127 Downlink EUTRAN Absolute Radio Frequency Channel Number

OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> Downlink

EUTRAN Absolute Radio Frequency Channel Number


The parameter indicates the downlink E-UTRA Absolute Radio Frequency Channel Number

(EARFCN). F_DL is center carrier frequency, F_DL_low is dl lowest carrier frequency, N_DL is

DlEARFCN, N_Offs-Dl is carrier frequency offset indicated by band indicator.

4.1.2.128 EUTRAN Allowed Measurement Bandwidth OMCR


Management->UTRAN Cell ->Cell Frequency Reselection and Priority-> EUTRAN

Allowed Measurement Bandwidth


This parameter indicates the maximum allowed measurement bandwidth on a carrier frequency.

4.2 PRACH-related Parameters

4.2.1 Parameter ListAbbreviated name Parameter name

PreamScraCode PRACH Preamble Scrambling Code

Signature Available Signature

AvailableSF PRACH Available SF

RlcSize Transport Block Size





TrBlkNum Number of Transport Blocks

TTI Transmission Time Interval

CtfcNum CTFC Number

Ctfc CTFC Id

TfcsIndex(Prach) TFCS Index(Prach)

TfcsIndex(UlTfcs) TFCS Index(UlTfcs)

TfsIndex TFS Index

PunctLimit Puncturing Limit

AichTranTime AICH Transmission Timing

AsigStIdx Available Signature Begin Index

AsigEndIdx Available Signature End Index

AsubChNum Ass igned Subchannel No.

PRStep PRACH Preamble Power Ramp Step MaxPreamRetrans Maximum Number of Preamble Being Transmitted

POPpmPower Offset between PRACH Control Part and PRACH DataPart

BetaD Data Part Gain Factor BetaD

BetaC Control Part Gain Factor BetaC

ConstVal PRACH Initiation Tx Power Constant Value

AvailSubChanNum PRACH Available Subchannel Number

MaxRACHTxPwr Maximum Allowed UL TX Power of RACH

DynPstLevelInit Initial Dynamic Persistence Level

PSF Persistence Scaling Factor

PsfNum Persistence Scaling Factor Number

PermitMaxASC Permitted Maximum Access Service Class

Mmax Maximum Number of Preamble Ramping Cycles

NB01min Sets Lower Bound for Random Back-off

NB01max Sets Upper Bound for Random Back-off

CPCId PRACH Common Physical Channel ID

PrachCPCId PRACH Common Physical Channel ID

CTCId RACH Common Transport Channel ID

Sib5OrSib6 Broadcast in either SIB5 or SIB6 AC2ASCMap AC-to-ASC Mapping

PreamThs Detected Preamble Threshold

4.2.2 Parameter Configuration

4.2.2.1 PRACH Preamble Scrambling Code

OMCR







Parameter Manager->PRACH-> PRACH Preamble Scrambling Code


This parameter indicates the preamble scrambling number that this PRACH can use.

The scrambling code that can be used for PRACH in each cell relates to the DL primary

scrambling code of the cell. In addition, there are at most sixteen preamble scrambling

codes available. This parameter can be used to distinguish the PRACHs.

4.2.2.2 Available Signature

OMCR



Parameter Manager->PRACH-> A vailable Signature


This parameter indicates all effective signatures when the PRACH is used. 16 bit

represents 16 signatures; the bit which equals 1 means the corresponding signature is

valid. Each signature corresponds one by one to the channelization code number of

PRACH whose SF is 16.

4.2.2.3 PRACH Available SF

OMCR

Path:View->Configuration Management->RNC NE->RNC Radio Resource Management-

> UTRAN Cell-> Advanced Parameter Manager->PRACH-> PRACH Available SF


This parameter indicates the minimum effective spreading factor that this PRACH can

use (limiting the maximum rate that the PRACH can transmit). The greater the minimum

effective spreading factor is, the lower the maximum rate becomes at which the PRACH

can transmit.

4.2.2.4 Transport Block Size(bits)

OMCR


Management-> Advanced Parameter Manager->Transmission Format Set-> Transport

Block Size(bits)






This parameter indicates the transport block size. Where MAX_TF =32.

4.2.2.5 Number of Transport Blocks

OMCR


Management-> Advanced Parameter Manager->Transmission Format Set-> Number of

Transport Blocks


This parameter indicates the number of transport blocks for each transport format.

Where, MAX_TF is the maximum transport formats and it is 32.

4.2.2.6 Transmission Time Interval

OMCR


Management-> Advanced Parameter Manager->Transmission Format Set->

Transmission Time Interval


This parameter indicates the transmission time interval.

4.2.2.7 CTFC Number

OMCR


Management-> Advanced Parameter Manager->Transport Format Combination Set of

PRACH -> CTFC Number


This parameter indicates the number of TFCs (transport format combination) in TFCS

(transport format combination set). TFCS means the combination of the transport

formats of CCTrCH, and is the combination of transport formats allowed by the

corresponding transport channels.

4.2.2.8 CTFC Id

OMCR






Management-> Advanced Parameter Manager->Transport Format Combination Set of

PRACH -> CTFC Id


This parameter indicates the identity of each TFC (transport format combination) in

TFCS (transport format combination set). TFCS means the combination of the transport

formats of CCTrCH, and is the combination of transport formats allowed by the

corresponding transport channels.

4.2.2.9 TFCS Index(Prach)

OMCR


Management-> Advanced Parameter Manager-> Transport Format Combination Set of

PRACH-> TFCS Index


This parameter indicates the transport format combination set (TFCS) index used by the

SCCPCH. It is used for indexing the CTFC number and CTFC Id of the TFCS of one

SCCPCH.

4.2.2.10 TFCS Index(UlTfcs)

OMCR


Management-> Advanced Parameter Manager-> Transport Format Combination Set of

PRACH-> TFCS Index


This parameter indicates the transport format combination set (TFCS) index used by the

PRACH. It is used for indexing the CTFC number and CTFC Id of the TFCS of one

PRACH.

4.2.2.11 TFS Index

OMCR


Management-> UTRAN Cell-> Advanced Parameter Manager->RACH-> TFS Index






This parameter indicates the transport format set index, used for indexing the

configuration of a set of transport format parameters for a transport channel including

channel type, transport format number, number of transport blocks, transport block size,

transmission time interval, coding rate, rate matching attribute.

4.2.2.12 Puncturing Limit(%)

OMCR


> UTRAN Cell->Advanced Parameter Manager->PRACH-> Puncturing Limit(%)


This parameter limits the amount of puncturing that can be applied for PRACH in order

to avoid multicode or to enable the use of a higher spreading factor. The allowed

puncturing in % actually can not exceed (1- Puncturing Limit). If it is exceeded that

means the selected SF does not satisfy the requirement and a smaller SF is needed.

4.2.2.13 AICH Transmission Timing

OMCR


Management-> UTRAN Cell->Advanced Parameter Manager->AICH-> AICH

Transmission Timing


This parameter is used to calculate the timing relationship between PRACH preambles,

between the PRACH preamble and PRACH message, between PRACH transmits

preamble and receives AICH. In addition, this parameter is used by the UE to calculate

the effective sub-channel No. available to ASC.

4.2.2.14 Available Signature Begin Index

OMCR


> UTRAN Cell-> Advanced Parameter Manager->PRACH-> Available Signature Begin

Index


The effective signatures assigned to each ASC of a PRACH correspond to two

parameters: Available signature Begin Index and Available signature End Index. Their

relation with Available Signature is: After ordering the configured Available Signature

(whose bit is 1) in the ascending order (such as, 2:0; 5: 1; 12: 2), the Available signature





Begin Index and the Available signature End Index are the starting index and ending

index after ordering. Range of available signatures (Available signature End Index-

Available signature Begin Index + 1) of different ASCs can overlap each other. Generally

speaking, the higher level the ASC is, the more signatures it will be configured.

Where, MAX_ASC =8.

4.2.2.15 Available Signature End Index

OMCR


> UTRAN Cell-> Advanced Parameter Manager->PRACH-> Available Signature End

Index


The effective signatures assigned to each ASC of a PRACH correspond to two

parameters: Available signature Begin Index and Available signature End Index. Their

relation with Available Signature is: After ordering the configured Available Signature

(whose bit is 1) in the ascending order (such as, 2:0; 5: 1; 12:2), the Available signature

Begin Index and the Available signature End Index are the starting index and ending

index after ordering. Range of available signatures (Available signature End Index-

Available signature Begin Index + 1) of different ASCs can overlap each other. Generally

speaking, the higher level the ASC is, the more signatures it will be configured.

Where, MAX_ASC =8.

4.2.2.16 Assigned Subchannel No.

OMCR


> UTRAN Cell ->Advanced Parameter Manager->PRACH-> Assigned Subchannel No.


This parameter indicates the allocated sub-channel number for each ASC of the PRACH.

This allocated sub-channel number can not be used directly, and after repeating

according to the configured AICH transmission timing, doing “and” operation with

Available Sub Channel Number then the actual value is obtained.

Where, MAX_ASC =8.

4.2.2.17 PRACH Preamble Power Ramp Step(dB)

OMCR






> UTRAN Cell-> Advanced Parameter Manager->PRACH-> PRACH Preamble Power

Ramp Step(dB)


This parameter indicates the power ramp step used by the UE when it does not receive

any responses from AICH after sending a preamble. This parameter is used to be added

to the previous power, and then the next preamble is sent at this new power.

4.2.2.18 Maximum Number of Preamble Being Transmitted

OMCR


> UTRAN Cell-> Advanced Parameter Manager->PRACH-> Maximum Number of

Preamble Being Transmitted


This parameter indicates the maximum number that the access preamble can be sent

before L1 receives ACK or NACK.

4.2.2.19 Power Offset between PRACH Control Part and PRACH Data Part(dB)

OMCR


Management-> Advanced Parameter Manager->Transmission Format Composition Set

of PRACH-> Power Offset between PRACH Control Part and PRACH Data Part(dB)


This parameter indicates the power offset between control part of the PRACH message

part and the last preamble. It should be configured for each TFC.

Where, MAX_PRACH_TFC=32.

4.2.2.20 Data Part Gain Factor BetaD

OMCR



of PRACH-> Data Part Gain Factor BetaD






This parameter indicates the data part gain factor βd. Where, MAX_ SINGLESRV_TFC

is the maximum transport format combinations for a single service CCTrCh. MAX_

SINGLESRV_TFC=32.

4.2.2.21 Control Part Gain Factor BetaC

OMCR



of PRACH-> Control Part Gain Factor BetaC


This parameter indicates the control part gain factor of PRACH. Control part gain factor

and data part gain factor are the power offset gain factors between control part and data

part of PRACH. And they should be configured for each TFC of the PRACH. When

determining the initial transmit power, only the transmit power of control part is

determined and the transmit power of data part is calculated through the transmit power

of control part and gain factor c , d . Where MAX_PRACH_TFC=32.

4.2.2.22 PRACH Initiation Tx Power Constant Value(dB)

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager-

>PRACH-> PRACH Initiation Tx Power Constant Value(dB)


This parameter is the correction value when calculating the initial transmission power of

PRACH preamble.

4.2.2.23 PRACH Available Subchannel Number

OMCR


Management-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager-

>PRACH-> PRACH Available SubChannel Number


This parameter indicates the available effective sub-channel number of this PRACH.

The sub-channel number actually defines the available time slot for the PRACH. The bit

indicates whether this sub-channel number is valid or not (Bit=1 indicates that the

corresponding sub-channel is valid). Each sub-channel number can correspond to





several access slots. For several PRACHs in the same cell, their sub-channel numbers

(corresponding bits) must be di fferent from each other.

4.2.2.24 Maximum Allowed UL TX Power of RACH(dBm)

OMCR



>PRACH-> Maximum Allowed UL TX Power of RACH(dBm)


This parameter indicates the maximum allowed UL transmission power of RACH.

If the parameter value is increased, the maximum allowed UL transmission power of

RACH increases.

If the parameter value is decreased, the maximum allowed UL transmission power of

RACH decreases.

4.2.2.25 Initial Dynamic Persistence Level

OMCR



>PRACH-> Initial Dynamic Persistence Level


This parameter indicates the initial dynamic persistence level used by the MAC layer to

calculate the transmission possibility for the ASCi>=1.

Each PRACH is configured with one value. The dynamic persistence level of several

PRACHs allocated to UE can be broadcast together in SIB7.

4.2.2.26 Persistence Scaling Factor

OMCR



>PRACH-> Persistence Scaling Factor






This parameter is used by the MAC layer to calculate the transmission possibility for the

access service class whose ASC is 2~7. Where MAX_ASC_PSF =6.

4.2.2.27 Persistence Scaling Factor Number

OMCR



>PRACH-> Persistence Scaling Factor


This parameter indicates the number of the ASCs which are configured persistence

scaling factors.

4.2.2.28 Permitted Maximum Access Service Class

OMCR



>PRACH-> Permitted Maximum Access Service Class


This parameter indicates the permitted number of access services for the PRACH. It

sets the size of the following three arrays: Available signature Begin Index, Available

signature End Index and Assigned Sub-Channel Number[ .

4.2.2.29 Maximum Number of Preamble Ramping Cycles

OMCR



>PRACH-> Maximum Number of Preamble Ramping Cycles


This parameter indicates the maximum times for re-sending attempts on MAC layer.

When the physical layer returns NACK (unacknowledged) or NO ACK (Node B does not

response), adds the attempt times, M, by 1. When M is over Mmax, the MAC layer stops

the access process.

When the parameter value is increased, the MAC layer makes more sending attempts.

When the parameter value is decreased, the MAC layer makes less sending attempts.





4.2.2.30 Sets Lower Bound for Random Back-off

OMCR

Path: View->Configuration Management->RNC NE->RNC Radio ResourceManagement-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager-

>PRACH-> Sets Lower Bound for Random Back-off


This parameter indicates the smallest time limit waiting for re-sending after NACK is

received.

When the UE receives NACK on AICH, the MAC layer starts the timer Tbo1, so that the

MAC can attempt to send again after certain time. This parameter can avoid frequent

rejection.

TBO1 can be set as NBO1 times of the interval of 10 ms and can vary randomly in a range.

Determination of NBO1: 0 NBO1min NBO1 NBO1max.

4.2.2.31 When Tbo1 expires, a new attempt on RACH is startedSets Upper Bound

for Random Back-off

OMCR


Management-> UTRAN Cell-> UTRAN Cell XXX-> Advanced Parameter Manager->PRACH-> Sets Upper Bound for Random Back-off


This parameter indicates the largest time limit waiting for re-sending after NACK is

received.

When the UE receives NACK on AICH from L1, the MAC layer starts the timer Tbo1, so

that the MAC can attempt to send again after certain time. This parameter can avoid

frequent rejection.

TBO1 can be set as NBO1 times of the interval of 10 ms and can vary randomly in a range.

Determination of NBO1: 0 NBO1min NBO1 NBO1max.

When TBo1 expires, a new attempt on RACH is started.

4.2.2.32 PRACH Common Physical Channel ID

OMCR







>RACH-> PRACH Common Physical Channel ID


This parameter indicates the common physical channel ID of PRACH corresponding to

this RACH..One cell can contain several PRACH. Common physical channel ID is the

unique identifier allocated to one common physical channel within a cell.

4.2.2.33 PRACH Common Physical Channel ID

OMCR



>PRACH-> PRACH Common Physical Channel ID


This parameter indicates the common physical channel ID of PRACH. One cell can

contain several PRACH. Common physical channel ID is the unique identifier allocated

to one common physical channel within a cell.

4.2.2.34 RACH Common Transport Channel ID

OMCR



>RACH-> RACH Common Transport Channel ID


This parameter indicates the common transport channel ID of RACH. Common transport

channel ID is the unique identifier allocated to one common transport channel within a

cell. One cell can contain several RACHs.

4.2.2.35 Broadcast in either SIB5 or SIB6

OMCR



>PRACH-> Broadcast in either SIB5 or SIB6






This parameter indicates whether the SCCPCH information is broadcast in SIB5 or SIB6.

It‟s SIB5 by default.

4.2.2.36 AC-to-ASC Mapping

OMCR



>PRACH-> AC-to-ASC Mapping


This parameter indicates the mapping relation between AC and ASC. AC is the access

level stored in UE IMSI. ASC is the RACH access level of PRACH channel. AC will be

used in initial setup state. And not be used in connected state.

Where, MAX_AC_ASC_MAPPING =7.

4.2.2.37 Detected Preamble Threshold(dB)

OMCR



>PRACH-> Detected Preamble Threshold(dB)


This parameter indicates the preamble judgment threshold when Node B detects

preambles. To make the access preamble of the PPRACH transmission be detected by

Node B, the proportion of the received preamble power in the preamble cycle and the

interference level should be larger than this parameter.

5 Glossary

A

APLMN Available PLMN

E

EPLMN Equivalent PLMN

H

HLR Home Location Register

idle mode - zte_ok

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