activate e-gprs on a bss b9

7/29/2019 Activate E-GPRS on a BSS B9

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Alcatel BSS

Activate E-GPRS on a BSS

MFS Document

Reconfiguration Method

Release B9

3BK 17422 1191 RJZZA Ed.05


2/21

Status RELEASED

Short title MPI119 / MDR1

All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Alcatel/Evolium.

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Contents

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.1.1 Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.1.2 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.1.3 Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.1.4 Grouped Task Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.2.1 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.2.2 Site Specific Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.2.3 External Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3 Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.4 Telecom/Supervision Outage and Operating Impact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121.5 Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.1 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.2 Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.5.3 Applicable Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.1 Before Going On-Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162.2 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.2.1 Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162.2.2 Required Knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3 Scenario Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.3.1 Initial Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.3.2 Modify NExtraAbisTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.3.3 Modify Radio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.3.4 Call Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.3.5 Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.3.6 Final Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.4 Reverse Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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Figures

Figures

Figure 1: E-GPRS Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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Preface

Preface

Purpose The purpose of this document is to describe how to activate E-GPRS and/orCS3/CS4 on a BSS.

Whats New In Edition 05

3BKA20FBR164398 Restriction about the change of NB_TS_MPDCHparameter was removed in section Modify Radio Interface (Section 2.3.3).

In Edition 04

3BKA20FBR164398 Restriction about the change of NB_TS_MPDCHparameter was added in section Modify Radio Interface (Section 2.3.3).

In Edition 03

Restriction on LCS introduced in Restrictions (Section 1.1.3)

In Edition 02

Update due to "A-bis Dynamic Allocation" in section Modify NExtraAbisTS(Section 2.3.2)

In Edition 01

Update due to "Synchronization of PRC with SC modifications" in sectionModify Radio Interface (Section 2.3.3)

Audience This document is intended for:

Field service technicians

Specialists

Project managers

Foremen.

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Preface

Assumed Knowledge You must have a basic understanding of the following:

For planning purposes:

Network architecture and reshuffling principles

Scheduling.

For realization purposes:

Alcatel operations and maintenance concepts for BSS

GPRS concepts

Alcatel 1353-RA OMC-R operation

Basic UNIX knowledge

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1 Overview

1 Overview

This Overview gives information needed by project managers and foremen, forpresentation to the customer and for site planning.

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1 Overview

1.1 Presentation

The purpose of this method is to activate E-GPRS on a per BSS basis. Froma radio interface point of view, E-GPRS means the introduction on the radiointerface of new modulation and coding schema which will improve the datathroughput for packet-switched traffic.

In the following table the new modulation and coding schema are listed with thecorresponding throughput:

Schema Modulation Maximum Rate [kbps]per Radio TS

MCS-1 GMSK 8.8

MCS-2 GMSK 11.2

MCS-3 GMSK 14.8

MCS-4 GMSK 17.6

MCS-5 8-PSK 22.4

MCS-6 8-PSK 29.6

MCS-7 8-PSK 44.8

MCS-8 8-PSK 54.4

MCS-9 8-PSK 59.2

To improve GPRS traffic on the radio interface, two new coding schemaswere introduced:

Schema Maximum Rate [kbps] per RadioTS

CS3 14.4

CS4 20

These two new optional features are available from the OMC-R only if theOperator bought them.

1.1.1 Cases

The following case applies:

C1: Multi GPU BSS.

1.1.2 Options

The following option applies:

O1: Modify the coding scheme on the radio interface for GPRS(Max_GPRS_CS)

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1 Overview

1.1.3 Restrictions

LCS feature is on hold. It will be available only after decision at project level.

1.1.4 Grouped Task Sequence

The following figure shows the task sequence for E-GPRS activation on a BSS.

Inital Checks

Modify Radio Interface

OMCR BTS Client

Final Checks

Figure 1: E-GPRS Activation

1.2 Preparation

1.2.1 Prerequisites

The following prerequisites apply:

The MFS and the BSC are already associated

The link between the OMC-R and MFS is available in both directions

The BSS and the MFS are in service

The Ater Mux interface is already configured to support GPRS

The Gb interface is configured

The hardware supporting HSDS is already deployed (G4 TREs and SUMA

board for secondary Abis)In all the cells where you want to activate E-GPRS, there is at least one

G4 TRE (inside A9100 BTS or inside A9110-E)

The NExtraAbisTS is correctly set for each BTS. If NExtraAbisTS is not

already defined, during this scenario it is mandatory to define it.

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1 Overview

1.2.2 Site Specific Information

The following site-specific information (input) is needed to complete thescenario:

Availability of a workstation at OMC-R site

Servers UserName and Password

Cases and options to perform

NExtraAbisTS, if necessary

For radio interface reconfiguration:

List of impacted cells

List of cell parameters to modify: Max_PDCH,

Min_PDCH, NB_TS_MPDCH, Max_Pdch_High_Load, and

En_fast_initial_GPRS_access, Max_EGPRS_MCS and PS_ PREF_

BCCH_ TRX

BSS/BSC parameters to modify (for example EN_IR)

List of cells where GPRS is not configured, but on which the operator

wants to add E-GPRS.

1.2.3 External Tasks

None.

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1 Overview

1.3 Scheduling

Time based on technical constraintsThe number of resources shown in the table below does not take into accountindividual customer or safety requirements.

Grouped TaskMSC/SGSN BTS BSC TC MFS OMC-R Time/Task

Initial Checks - - - - - 1 ope. (25min.)

25 min.

Modify NExtraAbisTS - - - - - 1 ope ( 7 min+ 6 minxnb.impactedTSU)

1 ope ( 7min + 6minxnb.impacted

TSU)

Modify Radio Interface - - - - - 1 ope. (31min.)

31 min.

Final Checks - 1 ope.(10min.)

- - - 1 ope. (39min.)

39 min.

TOTAL TIME - 10 min. - - - 1 hour 42min.+ 6min x nb.impacted

TSU

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1 Overview

1.4 Telecom/Supervision Outage and Operating Impact

The following table describes the traffic outage and loss of supervision causedby the concerned Grouped tasks.

Out.Ref.

Grouped Task Tel. / GPRSOut

Tel. /GPRSRed

Sup.Out

Oper.Impact

Impacts ...

- Initial Checks - - - - None.

- Modify NExtraAbisTS +3 min. percell/ +3 min.per cell

- - - (3) Telecom and GPRSoutage

- Modify Radio Interface 4 min. percell / 4 min.per cell

- - - (1) Telecom and GPRSoutage due to mappingbetween TRE and TRX

(depending on the numberof TRX).

- Final Checks -/4 sec. (2)per cell

- - - (2) GPRS outage: Only inC1, during cell reshuffling.

TOTAL 4 min. percell(1), 3min per cell(3) / 4 min.per cell(1),4 sec. percell (2), 3min per cell(3)

-/- - - (1), (3) Telecom andGPRS outage

(2) GPRS outage

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1 Overview

1.5 Resources

1.5.1 Tools

The following tables describe the necessary hardware tools, software tools,

and forms.

1.5.1.1 Hardware Tools

Item Part Number Use at...

None. - BTS

1.5.1.2 Software Tools

Item Part Number Use at ...

Customer documentation CD with the version associatedto the current document edition. Note that the documentyou are reading cannot be used as a paper version.It is an on-line document with hypertext links towardsapplicable documents (all these are supported on thesame CD-ROM).

BTS, OMC

1.5.1.3 Forms

None.

1.5.2 Supplies

The following table describes the supplies for E-GPRS activation.

Item Part Number Contents Use at...

None. - - -

1.5.3 Applicable Documents

The following documents are needed to complete this scenario:

B9 BSS Methods Handbook

BSS Configuration Handbook

BSS Surveillance Handbook

Network Reconfiguration Recommendations.

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1 Overview

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2 Scenario

2 Scenario

This Scenario presents all checks needed before beginning the scenario, andall detailed tasks to be performed on each site.

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2 Scenario

2.1 Before Going On-Site

Before going on-site, you must check that the following information andsupplies are available.

All Prerequisites (Section 1.2.1) are fulfilled

The customer has been informed of the

Date

Time

Site name

Site address

Purpose of operation.

Personnel are available and ready for operation (Refer to Scheduling

(Section 1.3))

Site Specific Information (Section 1.2.2) is available and ready for operation

Tools (Section 1.5.1) are available and ready for operation

Supplies (Section 1.5.2) are available and ready for operation

Documentation is available and ready for operation.

Ensure that the technical release level of the delivered board is in accordancewith the BSS hardware technical release document.

Ensure that the method used at the BSS site is at the same level as at theOMC-R.

2.2 Before You Start

2.2.1 Checks

Perform the following operations:

Check that all Prerequisites (Section 1.2.1) are fulfilled

Check the availability of all necessary tools and materials

Inform the operator.

Among the cases described in Cases (Section 1.1.1) and the options describedin Options (Section 1.1.2), identify which cases and options apply to you.

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2 Scenario

2.2.2 Required Knowledge

You must be familiar with the following:

Safety Rules and Precautions

Telecom/Supervision Outage and Operating Impact (Section 1.4)

Reverse Procedure

Grouped Task Sequence (Section 1.1.4)

Operating Hints

How to document Faults and Anomalies.

2.3 Scenario Description

The detailed tasks for GPRS logical configuration are described in this section.

2.3.1 Initial Checks

Note Task Description Site To do Outage

- Perform an Audit Alarm State on the BSS. OMC-R 10 min. None.

- View Status of Managed Objects and Alarms (TC,BSC) and print them.

OMC-R 10 min. None.

- Display MFS Reportand print it. OMC-R 5 min. None.

2.3.2 Modify NExtraAbisTS

If neccessary perform this task for each impacted BTSs.


OMC-R 2min+6 min xn

Start 3End3- Modify BTS Characteristics, to modifyNExtraAbisTS for the impacted BTS.

Where n is the number of impacted TSU.

If NExtraAbisTS is changed 3min/cell GSM andGPRS outage can occurr during the programmingtransmission.

- Re-synchronize GPRS, on eachimpacted cell.

OMC-R 5 min None

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2 Scenario

2.3.3 Modify Radio Interface


- Create PRC (working PRC). OMC-R 1 min. None.

- Copy OMC Cells to PRC (impacted cells fromSupervised Configuration into working PRC).

OMC-R 3-5 min. None.

- Create PRC (backup PRC) in restricted mode,to save the current configuration for the reverseprocedure.

OMC-R 1 min. None.

- Copy OMC Cells to PRC(all cells from working PRCinto backup PRC).


- Check PRC (backup PRC) without forcing celladministrative state.


- Close PRC (backup PRC). OMC-R 30 sec. None.

OMC-R 5 min. None.- Set BSS Telecom Parameters in working PRC toupdate BSS parameters if needed (for exampleEN_IR). This task includes the modification of CAEdata specific to the MFS.

Note: The duration depends on thenumber of parameters to modify. Here10 parameters in different windows wereassumed.

OMC-R 2 min. None.O1: Set Cell Telecom Parameters in working PRC, inorder to add E-GPRS on cells or to modify default

E-GPRS parameters.If the operator wants to set the same value for someparameters in more than one cell, then Edit n Cells.

Max_PDCH must be different from 0 to have GPRS,E-GPRS or LCS on cell.

The operator can also modify Min_PDCH,NB_TS_MPDCH, Max_Pdch_High_Load, andEn_fast_initial_GPRS_access, Max_EGPRS_MCSor PS_ PREF_ BCCH_ TRX parameters.

Set Max_GPRS_CS to CS3 or CS4.

Note1: To have E-GPRS on cell setEN_EGPRS to Enable.

Note2: To have GPRS or E-GPRSon the cell, TRX Pref.mark must be 0.To modify it for a block of TRX, useSet/Update Circuit/Packet PreferenceMark Configuration Using Script.

- Synchronize PRC with SC. OMC-R 3 min. None.

- Check PRC (Check all without forcing celladministrative state).

OMC-R 3 min. None.

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2 Scenario


OMC-R 5 min. START1

END1

Note1: The outage is about 4 min. percell, depending on the number of TRX.

- Activate PRC with cell clean-up (in queued mode,without forcing cell administrative state).

Display Pending Activations List to see when the

activation is finished.

Note2: The duration depends on thenumber of cells in the PRC.

- Close PRC (working PRC). OMC-R 1 min. None.

2.3.4 Call Tests


BTS 15 min. None.- If there is very little traffic on the modified cellssupporting E-GPRS, then perform E-GPRS callsusing a mobile. Note: This task is optional.

- Using an E-GPRS-capable mobile, perform apacket-switched call. If this call is not successful,perform the Reverse Procedure.

BTS 10 min. None.

- Display USD Detailed Cell Information to besure there is traffic on the cells.

OMC-R 2 min. None.

2.3.5 Final Checks


- Perform an Audit Alarm State on BSS andcompare the result with the audit performedduring the preparation task.

OMC-R 10 min. None.

- View Status of Managed Objects and Alarms

(TC, BSC) and print them. Compare with valuesprinted in the preparation task.

OMC-R 10 min. None.

- Display MFS Reportand compare with thereport printed during the preparation task.

OMC-R 5 min. None.

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2 Scenario

2.3.6 Final Operations


C1 Only in case of multi GPU, Reshuffle Cell/GPU

Mapping.

OMC-R 1 min. 4 sec. for

each cellremapped onanother GPU.Data trafficoutage only.

- Delete PRC(working PRC and backup PRC) ifthere are no problems.

OMC-R 1 min. None.

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2 Scenario

2.4 Reverse Procedure

Use this procedure to reverse the network modification described in thisscenario.


- Open PRC(backup PRC). OMC-R 1 min. -

- Activate PRC (in queued mode, without forcingcell administrative state and without cell clean-up).

Display Pending Activations List to see when theactivation is finished.

OMC-R 4 min. -

- Close PRC (backup PRC). OMC-R 1 min. -