Revisio Date Description Author Approved byV2.8 B Jul-06 Sixth VersionJohan Borsjo and Adnan KhaPaul ValetteV2.8 A ### Fifth Version Johan Borsjo and Adnan KhaPaul ValetteV2.0 Fourth Versi Paul Valette & Suffian Mairaj WarsiV1.9 Third VersionPaul Valette & Suffian Mairaj WarsiV1.83 ### Second VersiPaul Valette & Suffian Mairaj WarsiV1.8 ### First Version Paul Valette & Suffian Mairaj Warsi

Parameter Names BSS Names ZT

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ZTE Description Paktel Comment Comments

Cell Type 1 1 1 The type of the cell

LAC LAC xxxx xxxx xxxx 0 ~ 65535

Cell Identity CI xxxxx xxxxx xxxxx 0 ~ 65535

NCC NCC x 0-7 0-7 0 ~ 7

BCC BCC x 1-7 1-7 0 ~ 7

Cell Freq Band FreqBand EXT900 1 2 the system supports four frequency bands.

Reselect Hysterisis P RESELHYSTERE 4 4 4 0-7 2db step

Ny1 Times Ny1 5 5 5 5-35

Notification CCCH Pe Ccchloadindprd 10 10 10 1-255 102TDMA frame

Received RACH PowerRachBusyThs 40 63 63 0-63

TA Allowed TaAllowed 63 63 63

TA Max Tamax 63 63 63 0 ~ 219

BCCH BCCHARFCN xxx xxx xxxRadio Frequency CAARFCNLIST xxx xxx xxx Frequency point set, and the value range of each frequency The aggregate of the radio frequency of the BTS

PLMN Table NCCPERMITTE x 0-7 0-7 0-7 see NCCChannel Select Priority 0 ~ 2 N/A

Average Burst Count Avgslots 60 0-100

BSS Link Layer Error BsRadioLkTmOu 15 4 4 0-15 4 SACCH

MS Link Layer Error MsRadioLkTmOu 15 4 4 0-15 4 SACCH

MS minimal receiving iRxLevAccessMin 12 8 8 0-63 rxlevRACH Load IndicationRachbusyths 0-100 %

PCH Load Indication CcchLoadThs 80 80 80 0-100 %

Max Retransmission MaxRetrans 2 2 2

MS Max Transmit Po MSTXPWRMAX 5/0 5 0 GSM12.20 P37 GSM04.08 10.5.2.4

AGCH Mode Count BSAGBLKRES 2 2 2 0-7

Multiframe count for BSPAMFRMS 2* 4 4

Related Parameters/ further comments

0 Umbrella cellular1 macro-cell2 micro-cell3 Micro-micro-cell4 Extended cell (TA>63)

Macro - Micro HO is used to do handovers from 900 to 1800 cells. Therefore 900 cells must be defined as Macro cells and 1800 cells must be defined as micro cells

The coverage of each GSM PLMN can fall into location areas to determine the location of the mobile station, and the location code is to identify different location areas. LAC is one of the LAI composition parts (LAI = MCC + MNC + LAC). One location area contains multiple cells.

It is recommended to do the LA dimensioning based on number of pagings per LA. Paktel shall using non-combined CCCH and 2 blocks reserved for AGCH for all cells in the network. As a result number of pagings per LA and Hour sould not exceed 70 000.

Network carriers allocate a unique code for each cell in a location area to uniquely indicate each cell in the GSM PLMN, that is, cell ID (CI).

NCC is one of the composition parts of Base Station ID Code (BSIC) (BSIC = NCC + BCC). NCC is to enable mobile stations to distinguish adjacent and different GSM PLMN cells. Neighboring operators usually have different NCCs. The parameter related to NCC is the “NccPermitted” parameter of the cell. MS is disabled to measure the cell information of related operators by prohibiting MS to report relative NCC in the cell. Actually, NCC occupies three bits. NCC is one of the network identification parameters.

It is recommended to use the whole range of NCC if necessary in order to create unique BSIC and BCCH combinations. Note that NCC=1 must be used near country borders.

BCC is one of composition parts of Base Station ID Code (BSIC) (BSIC = NCC + BCC). BCC is usually to enable mobile stations to distinguish adjacent cells with the same BCCH carrier frequency and belonging to the same GSM PLMN. In addition, GSM specifications stipulate that Training Sequence Code (TSC) of broadcast control channel of a cell must be equal to cell BCC. BCC occupies three bits. It is one of network identification parameters.

Plan BCC in order to have unique BCCH and BSIC combinations if possible. If not possible try to maximise the geographical distance between cells wih same BCCH and BSIC combinations

0 GSM900:1 EXT900 EGSM9002 DCS1800 GSM18003 850M GSM850M

Either Ex900 or 1800 for Paktel Network

MS should initialize a location updating process after reselecting the cell when MS reselects the cell and if original cell and destination cell belong to different areas. C2 values of two cells measured at adjacent cell boundary will normally have relatively great fluctuation due to the fading characteristic of a radio channel, and result in MS to frequently reselect cells. Time frame is extremely short in terms of location updating, although the interval for reselecting two cells by MS will not be less than 15 s. It not only dramatically increases the signaling flow of networks, while the radio resources can not be fully utilized, but also decreases the call completion rate of the system due to paging unable to be responded to during MS location update. One parameter called Cell Reselecting Delay Lag (CRH) is set in the GSM specification to reduce the impact of this issue. It requires the signal level of adjacent cell (location cell and local cell are different) to be greater than local cell signal level and its value difference must be greater than the value specified by CRH. MS will start the cell reselecting in this case. This parameter is broadcasted to MS in the cell via the “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4”, which

For cell reselection at the LAC border cells. A low value increases quality of network but cost more SDCCH capacity due to LA updates

BTS sends message “RIL3_RR PHYSICAL INFORMATION” to notify MS advanced time value that will be used during asynchronous handover process to be in accordance with GSM specifications. BTS starts the timer T3105 after the message “ RIL3_RR PHYSICAL INFORMATION” is sent once. BTS will resend message “RIL3_RR PHYSICAL INFORMATION” and restart the timer T3105 if the timer expires and fails to decode the frames in second layer correctly (format A or format B) or TCH frames. The parameter Ny1 (the Max Number of Repetition) decides maxmium number of resending times for the “RIL3_RR PHYSICAL INFORMATION” message. This is one of the BTS parameters.

The Max Repeat Time to Send Physical Information Message

BTS will periodically send message “CCCH LOAD INDICATION” to BSC till CCCH channel is no longer over the threshold value when CCCH channel (RACH and PCH channels among them) load level of BTS exceeds a threshold value (overload) set by O&M to be in accordance with the GSM specifications. Among them, the period for sending the message “CCCH LOAD INDICATION” depends on this parameter, which is one of BTS parameters.

1=102 TDMA Frame. When the CCCH overload (RACH/PCH), the BTS will send the CCCH LOAD INDICATION Message to BSC until no longer exceed the threshold.

The threshold for receiving signal level in RACH bursts if the value is exceeded (that is less than - RachBusyThs dBm). It will be considered as a busy RACH.

Max value shall be used in order to not restrict traffic by parameter settings

Expansion cell: 0 ~ 219Common cell: 0 ~ 63

According to GSM specifications, the handover can be decided after obtaining a series of mean values. The distance from MS to BTS is one of the possible reasons to cause handover. The decision process is like this: If there are as many as P mean values in the latest N TA (distance ) mean values larger than relevant threshold values, handover takes place because MS is outside the service range of the cell. The parameter DistanceThs defines the relevant threshold. The parameter DistanceN defines the relevant N while DistanceP defines P.

Handovers shall be based on signal strength, quality or interference, not TA.

Maximum TA supported by the extended carrier frequency

Used by extended cells, Extended cells can only be used for high towers in open areas since radio propagation will be limited otherwise.

BCCH is the absolute frequency point number of carrier frequency.

This indicates the PLMN table that allows MS to report the measurement results.

The number of bursts measured on RACH. RACH channel is overloaded if some receiving signal levels of AvgSlots BP are less than the RachBusyThs. It is a parameter used by BTS.

The amount of bursts measured on RACH. If the receive signal level of as many AvgSlots as BPs is lower than RachBusyThs, the RACH overloads. It is a parameter used by BTS.

Maxmium value of the counter S that measures the radio link faults on BSS side

A value of 4 corresponds to approx 8 sec. shall be used. Do not increase this timer to decrease Call Drop Rate

Maxmium value of the counter S that measures the radio link faults on MS side

A value of 4 corresponds to approx 8 sec. shall be used. Do not increase this timer to decrease Call Drop Rate

It is minimal receiving level to allow MS to access the cell. It is prescribed in GSM system that the receiving level be greater than a threshold for MS to access the network, that is, MS Min RxLev to Access (minimum receiving level for MS to access the network). It prevents MS from accessing the system at a low receiving signal level (the poor communication quality usually cannot guarantee normal communications after access), and from unreasonably wasting the radio sources of network. In addition, it is one of the criteria for MS to select and reselect the cell. The parameter will be broadcasted to all MSs in a cell through “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4” messages. RxLevAccessMin is also one of cell selection parameters.

A value of -102 dBm shall be used for all cells in the network. This value corresponds to the MS sensitivity and traffic shall not be restricted by using a higher value. This parameter must not be optimised on cell level.

BTS will periodically send the “CCCH LOAD INDICATION” message to BSC till the CCCH channel is no longer over the threshold value when the CCCH channel (the PCH channel among them) load level of BTS is over a threshold value (overload) set by O&M to be in accordance with the GSM specifications. Among them, the threshold depends on the parameter “CcchLoadThs”. This is one of the configuration parameters of BTS.

MS will send the channel request message in the RACH channel to the network when MS starts the immediate assignment process (such as a MS needing to update the location, originate a call or respond paging). The network enables MS to send multiple channel request messages before it receives the immediate assignment message to improve the access success rate of MS, for RACH is an ALOHA channel. Maxmium number of allowed resending times depends on the “MaxRetrans”. This parameter notifies MS in the cell via “RIL3_RR SYSTEM INFORMATION TYPE1, 2, 2bis, 3 and 4”. The “MaxRetrans” is one of the control parameters of the system.

The transmission power is controlled by the network during the communication between MS and BTS. The network sets the power for MS via the power command and the command is transmitted on SACCH (the SACCH has 2 header bytes, one is the power control byte and the other is the lead time byte). MS must extract the power control header from downward SACCH and takes the specified transmission power as output power. It will output the closest transmission power that can be output if the power level of MS cannot output the power value. It must be used with other channels, such as SDCCH, TCH, for SACCH is the associated channel signal. MS power control by the network actually begins after MS receives SACCH. The power (that is, the power used when the channel request is sent on RACH) used by MS before receiving SACCH depends on the control channel maximum power level “MsTxPwrMaxCch”. The “MsTxPwrMaxCch” is also a parameter for cell selection and reselection by MS, involving in calculation of C1 and C2 values. This parameter is broadcasted to all the MSs in the cell via “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4” messages, which is one of the cell selection parameters.

Description: This is the amount of blocks used for AGCH in the 51 multiple frames (BS-AG-BLK-RES). Table 62 shows the CCCH channel information blocks contained in each BCCH multi-frame (51 frames contained) in case of different CCCH configurations. The number of blocks reserved to allow access channel in the CCCH channel message blocks on the network must be set, for CCCH channels contain both the allowed access channel and paging channel. The system message of each cell contains a configuration parameter to make this configuration information known to MS, that is, the access allowed reserved blocks can be calculated via “CCCHConf” and “BsAgBlkRe” for the number of “BsAgBlkRes” blocks of PCH. This parameter can be dynamically adjusted during the actual running according to the load status of different common channels. It is the broadcast to all MSs in the cell through the “RIL3_RR SYSTEM INFORMATION TYPE3” message.

A value of 2 together with non-combined CCCH configurations will result in 7 CCCH blocks for PCH. The paging capacity dimensioning guideline of max. 70 000 pagings per LA/hour is based on this and therefore all cell must have the same value.

Value Number of Multi- frames Cycled on Same Paging Channel in Same Paging Group0 21 32 43 54 65 76 87 9

The multi-frame amount (BS-PA-MFRMS) of 51TDMA frames of MS that the transmission paging message gives to the same paging group. Accoding to GSM specifications, each MS user ( that is corresponding with each IMSI) belongs to one paging group. In each cell, each paging group matches a paging sub-channel. The MS calculates the paging group it belongs to via its own IMSI and further calculates the location of the paging sub-channel belonging to this paging group. In practical networks, MS only "receives and hears " the contents from the paging subchannel it belongs to but ignores those from other paging subchannels . By turning off power supply of some hardware devices in MS , the power overheads (the sources of DRX) can be saved . The channel multi-frame number BsPaMframs refers to a circle taking how many multi-frames as paging subchannels. Actually this parameter determines how many paging The multi-frame quantity (BS-PA-MFRMS) is given to the 51 TDMA frames of MS in the same paging group by the transmission paging message. In accordance with the GSM specifications, each mobile subscriber (that is, corresponding to each IMSI) belongs to one paging group, and each paging group in every cell is corresponding to one paging sub-channel. MS

*Value 0-7 represent 2-9 multiframe respectively. Thus, "2" here is equivalent to 4 Multiframe.Low values gives short call setup times but hight MS battery consumption

Parameter Names BSS Names ZT

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ZTE Description Paktel Comment Comments

Related Parameters/ further comments

maximum time intervaTXINTEGER 14 14 14 0-255 sec

Allow IMSI Attach/De ImsiAdAllowed Yes Yes Yes Y/N

Cell Bar Access CELLBARACCE No No No Y/N

Allow DL DTX DTXDWLINK Yes Yes Yes Y/N

Allow Call Re-establisCALLREESTABL No(0) No(0) No(0)

Conditionally Allow Emergencycall No No No Y/N

T3212 Timer T3212 10 40 40 0-255

Cell Bar Qualify CELLBARQUALI No Yes* No* Y/N

MS Type that cannot viAccesscontrol n/a n/a n/a False: MS with corresponding access level is not barred and c

Additional ReselectionAdditionReselPI No No No Y/N

Cell Reselection PI (CCellReselPI Yes No Yes(1) Y/N

Cell Reselect Offset ReselOffset 1 0 5 0-63 2 dB

Temp Offset (TO) TemporaryOffset 1 0 0

Penalty Time (PT) PenaltyTime 20 0 0 0-31 20sec 31=negative C2. 0=20sec

Early Class Mark TranECSC Yes Yes Yes Y/N Related to Dual Band

Number of slot spread transmission, determines the cycle period for retransmission of RACH accesses (i.e. transmission of a CHANNEL RERQUEST message), i.e. it determines the time an MS must wait after an unsuccessful random access attempt before a new one can be started. In the mobile the retransmission mechanism is continuously executed after the first RACH access and only stopped if an IMMEDIATE ASSIGNMENT is received from the BTS.For phase 1 mobiles there is only one fixed retransmission period, i.e. the different settings of TxInteger only lead to different retransmission cycles for phase 2 mobiles. This parameter is sent on the BCCH (SYS_INFO_Type1, 2, 3 and 4) in the IE ‘RACH Control Parameters’.The procedure of MS sending access burst as below:-The number of slots belonging to the mobile station's RACH between initiation of the immediate assignment procedure and the first CHANNEL REQUEST message (excluding the slot containing the message itself) is a random value drawn randomly for each new initial assignment initiation with uniform probability distribution in the set {0, 1, ..., max (T,8) - 1};- The number of slots belonging to the mobile station's RACH between two successive CHANNEL REQUEST messages (excluding the slots containing the messages themselves) is a random value drawn randomly for each

IMSI Attach/detach Allowed, ATT in a cell. IMSI detaching process means that MS reports entering non-working status to the network, that is, switch-off or the process to take the SIM card out from the MS. The network (normally VLR) marks the IMSI subscriber in a non-working status, and the called connection request of the subscriber will be denied now, so it is unnecessary to page. Accordingly, the attaching process of IMSI means that MS reports entering working status to the network or reinserting the SIM card into the MS, and MS checks whether the LAI that of MS located is consistent with the original one saved. Start the IMSI attaching process if so and start the location updating process if not. The network marks the working status of the subscriber when receiving the IMSI attaching or the location update process. This parameter is contained in the information unit “Control channel description” for “RIL3_RR SYSTEM INFORMATION TYPE3” message.

PLMN carriers can determine whether to allow MS residing in a specific cell (for instance, the area being under the test or only for the area to attract handover traffic). This parameter notifies MS in the cell via “RIL3_RR SYSTEM INFORMATION TYPE1, 2, 2bis, 3 and 4” message. “CellBarAccess” is combined with “CellBarQulify” (cell disable limit) deciding the priority of the cell selection and reselection.

DTX that is applied in the downlink direction is an optional process of BSC. Discontinuous transmission (DTX) refers to the process where the system does not transmit signals in the speech dialogue period during the subscriber communication process. This parameter involves controlling the DTX mode applied in the downlink direction. Practically, whether to apply DTX (the messages “CHANNEL ACTIVATION” and “MODE MODIFY” given to BTS) in the downlink direction will be jointly decided by the parameter plus if the indication about downlink direction will be used in the messages “ASSIGNMENT REQUEST” and “HANDOVER REQUEST” of the MSC.

True: Call establishment is allowed in the cellFalse: Call establishment is not allowed in the cell

MS can originate call re-establishment process to restore the call if the network has the right to allow call re-establishment, for “blind spot” caused by burst-out interference or high-rise building will result in call disconnection due to radio link fault. This function is implemented via setting the parameter “CallReestablish”. This parameter is broadcasted to MS in the cell via the messages “RIL3_RR SYSTEM INFORMATION TYPE1, 2, 2bis, 3 and 4”, which is one of the network function parameters.

Do not use call re-establishement since it has a bad imact on network quality and might create confusion for the subscriber

Generally, any MS on the GSM network must have a valid subscriber identification module card (SIM) to get various service supports from the network. Carriers have the right to decide whether to allow MS making an Emergency Call (EC), such as burglar alarm for MS without a SIM card or MS with a SIM but its access level (one of levels from C0~C9) has been closed by current cell (that is, it cannot start the access program according to the system message of the current cell). This function is implemented via setting the “EmergencyCall” parameter. This parameter is broadcasted to MS in the cell via the messages “RIL3_RR SYSTEM INFORMATION TYPE1, 2, 2bis, 3 and 4”, which is one of the network function parameters.

All MS shall be able to do emergency calls

There are two major causes in GSM system, resulting in location update. One is that MS found out its location area changed (different LAC), and the other is that the network specifies MS to periodically update its location. The interval for periodic location updating is controlled by the network and the duration depends on the T3212 timer. This parameter is broadcast to all MSs in the cell via “RIL3_RR SYSTEM INFORMATION TYPE3” message. T3212 timer is one of the system control parameters.

Periodic Location Update. MUST be used in harmony with related MSC Timer. MSC timer must always have higher values in order to not detach the MS before the periodic LA update

Carriers hope that MS preferably selects some cells in the cell selection according to the capacity, traffic and functional difference of each cell for overlapped areas in a cell, that is, set the priority of the cell. This function can be implemented via setting the “CellBarQualify” parameter. The “Cell disable limit” is to set the cell priority in some special cases. This parameter is broadcasted to all the MSs in the cell via the messages “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4”, which is one of the cell selection parameters. Whether this parameter is valid will depend on “CellReselPI”.

Set Y for 900 only in dual band environment. This parameter applies during cell selection. If yes, the cell will be lower priority when MS is switched on (with Cell Bar Access is No) Note that cell barr does not restrict calls for cell with cell bar qualify set to TRUE

between 0 and 9 are common ones, while those with the class ranging between 11 and 15 are special MSs (no access class 10). Therefore, the system can disable the MSs with certain access classes to access the cell (for example during the installation commissioning or the congestion control). These pieces of information can reach MS inside the cell in “RIL3_RR SYSTEM INFORMATION TYPE1, 2, 2bis, 3 and 4” messages through the “AccessControl” parameter. AccessControl is also one of the system control parameters. The degree of congestion for any CCCH or processor overload during congestion control can be reduced by temporarily prohibiting one type or multiple types of subscribers from accessing the system (for subscribers of access levels 0~9). Generally speaking, the system will have the following overload conditions: RACH overload is found in the “CCCH LOAD INDICATION” message and processed by BSS according to the standard GSM08.58 AGCH overload is found in “DELETE INDICATION” message first, and handled by BSS by not sending “IMMEDIATE REJECT” message PCH overload is found in “CCCH LOAD INDICATION” message, and the BSS will not make any process but notify the MSC

The cell selection and reselection of MS depends on the parameter C1 and C2, according to the definition in the GSM specification. Network carriers decide whether to use C2 as the cell reselection parameter. AdditionReselPI (Additional Reselect Param Ind, ACS) is to notify MS whether C2 is adopted during the cell reselection. This parameter is broadcasted to MS in the cell via the “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4” messages, which is one of the cell selection parameters.

ZTE: Never use this parameter because not all MS can receive system info 7 and 8

The cell reselection parameter index is employed to notify MS whether to use the C2 as the cell reselection parameter and if there is the parameter for calculating C2. Indicate whether related parameter for calculating cell reselection standard C2 contained in the message “SYSTEM INFORMATION” message and whether C2 standard is adopted in the cell reselection. The successive “ReselOff”, “TempOffset” and “PenalTim” are invalid, and MS takes C1 as the cell reselection standard when this value is False. This parameter will be broadcasted to all MS in the cell in the messages “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4”. “CellReselPI” is one of the cell selection parameters.

Should be set yo yes for all cells of cell bar qualify and reselect offset shall work

The cell reselect caused by the radio channel quality takes the C2 as the standard. The C2 is formed according to C1 parameter plus some factitious offset parameters, to add the factitious influence as to encourage MS to enter some cells in priority, or to block MS from entering some cells. Usually, such measures are all adopted to balance the traffic on the network. Besides C1, there are three factors affecting C2: ReselOffset, TemporaryOffset, and PenaltyTime. The ReselOffset (Cell Reselect Offset, CRO) is a magnitude value, which indicates the factitious modified value to C2. To calculate a modification value of the cell C2 reselect standard is to factitiously encourage or block MS to enter a cell, so that the network balance can be realized. This parameter is broadcasted to all the MSs in the cell via the messages “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4”, which is one of the cell selection parameters. Whether this parameter is valid depends on “CellReselPI”.

If low vales of RxLevAccMin is used it is risky to use to big offsets

The cell reselect caused by the radio channel quality takes the C2 as the standard. The C2 is formed according to parameter C1 plus some factitious offset parameters, to add the factitious influence is to encourage MS to enter some cells in priority, or to block MS entering some cells. Usually, such measures are all adopted to balance the traffic on the network. Besides C1, there are three factors affecting C2: ReselOffset, TemporaryOffset, and PenaltyTime. The TemporaryOffset indicates the temporary modification value for C2. What temporary means that it only acts on C2 for a period of time and the period depends on parameter PenaltyTime. This parameter is broadcasted to all MSs in the cell via messages “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4”, which is one of the cell selection parameters. Whether this parameter is valid depends on “CellReselPI”.

The cell reselect caused by radio channel quality takes C2 as standard. C2 is formed according to parameter C1 plus some factitious offset parameters, to add the factitious influence is to encourage MS to enter some cells in priority, or to block MS from entering certain cells. Usually, such measures are all adopted to balance the traffic on a network. Besides C1, there are three factors affecting C2: ReselOffset, TemporaryOffset, and PenaltyTime. The TemporaryOffset indicates the temporary modification value for C2. What temporary means is that it only acts on C2 for a time, and that time frame depends on the parameter PenaltyTime. This parameter is broadcasted to all the MSs in the cell via the messages “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4”, which is one of the cell selection parameters. Whether this parameter is valid depends on “CellReselPI”.

MS will transmit appended class mark information (Classmark 3) to the network via the “CLASSMARK CHANGE” message as soon as possible according to the GSM specifications, when a MS is equipped with the ECSC function that is also supported by the network and after it is assigned. Whether the network supports ECSC function depends on “ECSC” parameter. The parameter is broadcasted to the MSs in the cell via “RIL3_RR SYSTEM INFORMATION TYPE3” message.Value range: False: Disabling MS early class mark transmission; True: Enabling MS early class mark transmissionNote: Set ECSC as True if there is another frequency section in adjacent cell for handover or the cell is an expanded GSM cell, and the network supports the ECSC function. Otherwise, it will be set as False.

Parameter Names BSS Names ZT

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ZTE Description Paktel Comment Comments

Related Parameters/ further comments

Hardware Support HalNeci No No No

Power Offset Index PwrOffsetInd No No No Y/N

Power Offset Value (dPwrOffset 0 0 0 0-3 2 dB

Use Directed Retry DrInd 0 Yes Yes Y/N

Allow Queue when AsQueueind No No No Y/N

Allow Queue when H Queueind No No No Y/N

Assign and Handover Preemptionind No No No Y/N

Allow Rapid Average aFastAvg Yes Yes Yes Y/N To make a trial…

Allow FACCH Call SeFacchCallInd 15 Yes Yes

Optimize TxPwr When AOpttxpwrind No

Allow to assign from CiAssignInd No No NoAllow BCCH ExchangCanbcchexch Yes Yes Yes -

Allow SDCCH ExchanCansdcchdyn No No No -

UL Best Signal Level Optrxlevul 22

DL Best Signal Level Optrxlevdl 22

Candidate cell max coCandidatenum 6 1 ~ 16

UL/DL Signal BalanceRxLevBalance 5 dB

Allow UL Min Signal LCiassignths 25

Min Resource Level ( Resourceths 100

Access Min Carrier/NoCnthresind 15

Survey Period InterfAvgPrd 31 31 31 1 to 31 SACCH

Interference BoundaryInterfBoundary 0 0 0Interference BoundaryInterfBoundary 10 10 10 see description of Interference Boundary 0Interference BoundaryInterfBoundary 15 15 15 see description of Interference Boundary 0Interference BoundaryInterfBoundary 20 20 20 see description of Interference Boundary 0Interference BoundaryInterfBoundary 25 25 25 see description of Interference Boundary 0Interference BoundaryInterfBoundary 63 63 63 see description of Interference Boundary 0

The service channels in the GSM system can fall into channels with full rate and channels with half rate according to GSM specifications. Common GSM systems all support channels with full rate. Whether the network supports half rate service depends on the network operators. The new setup reason denotes the NECI to notify MS if the area supports the half rate service. The parameter notifies MS via the “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4” messages, which is one of network’s functional parameters.

Transmission power to send access request message on RACH is to add an offset value according to MsTxPwrMaxCCH value for the Class 3 MS of GSM1800, which depends on “PwrOffset” parameter. Whether the offset value is necessary depends on parameter “PwrOffsetInd”, that is, the “PwrOffsetInd” parameter decides whether the parameter of “PwrOffse” is valid. The parameter is broadcasted to the MSs in the cell via “RIL3_RR SYSTEM INFORMATION TYPE3, 4, 7 and 8” messages.

The transmission power sending an access request message on RACH channel is to add an offset value according to MsTxPwrMaxCCH value in GSM specifications, for MS of Class 3 GSM1800. Modification value depends on the parameter of PwrOffset. Whether the offset value is necessary depends on the PwrOffsetInd parameter, that is, parameter of PwrOffsetInd decides whether the parameter of PwrOffse is valid. The parameter of PwrOffset also affects MS calculating cell selection and cell reselection standards C1 and C2. The parameter is broadcasted to the MSs in the cell via “RIL3_RR SYSTEM INFORMATION TYPE3, 4, 7 and 8” messages.

False: Directed retry is not usedTrue: Directed retry is used

Whether to use directed retry. It will assign a service channel for MS in an adjacent cell according to the measurement report from MS during the assignment, if there is no service channel to be allocated in the service cell while the system adopts the directed retry. This is a special handover process that can reduce the call drop rate. The directed retry can be sorted as the directed retry in BSC and between BSCs, the former is not required of the MSC but the latter does require MSCs support.

DrMinTime, DrMaxTime

The parameter decides whether queuing can be performed in the assignment process and when there is no channel available in the cell.

The parameter decides whether queuing can be performed during a handover process and when there are no available channels in the cell.

Whether forced disconnection is allowed during the assignment and handover. Forced disconnection process: Those connections that are liable to be damaged can be forcedly disconnected (handover) to allocate their resources to the assignments or handover request with higher priority when the priority in the assignment request or handover is valid and the preemption is valid. Whether a call is easily damaged will be shown in assignment requests and handover.

The corresponding handover and power control may not be performed during the calling process due to less measured data. The process of calculating average value can be enabled, for these processes generally require values that can be measured reach a certain window size, for example, when the window size to calculate average value is 8. Common average process will not take place, for the BSC has only received 5 measured values. BSC will directly calculate the average of the 5 measured values if the fast average process is adopted. There are two cases resulting in insufficient data for calculating the average value, that is, call establishment period, after handover and after power control. It is necessary to point out that, after the power control is performed once, former measured values are discarded in situations where they could result in an error control (measured values without the influence on handover control are still existing). In addition, old measured values are discarded after the handover has occurred keeping it from causing error control (the forward and backward cells are in the same BSC).

Location Meaning1 1: Emergency call allows FACCH call establishment process0: Emergency call disallows FACCH call establishment process 2 1: Reply paging allows FACCH call establishment process 0: Reply paging disallows FACCH call establishment process 3 1: Start-call allows FACCH call establishment process 0: Start-call disallows FACCH call establishment process 0:4 1: Call reestablishment allows FACCH call establishment 0: Call reestablishment disallows FACCH call establishment 5~8 Reserved. Permanent 0

BSC can allocate the TCH channel accordingly when a MS attempts to access the network, and there is no SDCCH available in the cell.

To allow FACCH call establish for emergency call, reply to paging and normal call steup.

1 True: Optimize the transmission power in the uplink assignment False: Not to optimize the transmission power in the uplink assignment 2 True: Optimize the transmission power in intra-cell handover (including concentric handover) uplinks False: Not optimizing the transmission power in intra-cell handover (including concentric handover) uplinks 3 True: Optimize the transmission power in intra-cell handover (including directed retry) uplinks False: Not to optimize the transmission power in intra-cell handover (including directed retry) uplinks 4 Reserved. Permanent 05 True: Optimize the transmission power in the downlink assignment False:Not to optimize the transmission power in the downlink assignment 6 True: Optimize the transmission power in intra-cell handover (including concentric handover) downlinks False: Not optimizing the transmission power in intra-cell handover (including concentric handover) downlinks 7 True: Optimize the transmission power in intra-cell handover (including directed retry) downlinks False:Not to optimize the transmission power in intra-cell handover (including directed retry) downlinks 8 Reserved. Permanent 0

Introducing the concept of signal level optimization, the transmission power of the mobile phone and the BS can be optimized after the assignment and handover of mobile phone and BS (including the directed retry). It can avoid increased interference of entire GSM system caused by maximum transmission power, or failure of mobile phone access and reduction of system call completion ratio caused by smaller transmission power (when it is intra-cell handover or when assigning). It is an optional item. The parameter “OptTxPwrInd” is to decide whether relevant function of optimization transmission power is enabled. It is necessary to point out that optimization of uplink transmission power is related to smallest acceptable CCI allocated by the channel. Moreover, the parameter also decides validity of parameters “OptRxLevUL” and “OptRxLevDL”, that is, when a process in uplink/downlink direction requires to be optimized.

Whether to perform the assignment process from the SDCCH to the TCH of the special TRX. MS can be directly assigned from SDCCH to TCH channel on special TRX to avoid the call drop according to C/I concentric technology, when there is no TCH channel on a common TRX but there are suitable TRX channels on the special TRX, in addition to queuing. The parameter “CiAssignInd” decides whether it can be done.

ZTE: There is a bug. We can use it after BSC upgrade v2.8

The parameter indicates receiving intensity of best uplink signal in the cell, that is, under receiving intensity. The signal quality and low interference can be guaranteed. “OptRxLevUl” is mobile signal level that BS expects to receive during the assignment or handover, if optimization of transmission power in the uplink direction is performed.

The parameter indicates receiving intensity of the best downlink signal in the cell, under the receiving intensity. Signal quality and low interference can be guaranteed. “OptRxLevDl” is mobile signal level that BS expects to receive during the assignment or handover, if optimization of transmission power in downlink direction is performed.

A certain number of cells are necessary to supply in terms of specifications, when BSC sends “BSSAP HANDOVER REQUIRED” message to MSC. This parameter decides largest number of candidate cells that can be contained in “BSSAP HANDOVER REQUIRED” message.

The parameter indicates different values for uplink signal level and downlink signal level in the area covered by cell. Calculation method: RxLevBalance = Downlink signal – Uplink signal. For example, the value 5 db means that downlink signal is 5 db stronger than uplink signal.

Difference in UL and DL RxLev at sytem balance = Mssens - BTSsens

It can directly assign MS to TCH channel on special TRX from SDCCH to avoid call drop from occurring according to C/I concentric technology and during the assignment from SDCCH to TCH of TRX, when there is no TCH channel on common TRX and if there is a proper TRX channel on the special TRX. The parameter "CiAssignThs” determines the level that must be exceeded by the signal level in uplink direction (after correcting the power control).

To guarantee normal service a restriction is placed on certain traffic (for example a better conversation quality can be obtained only in case of 50% of traffic) in case of some special frequency multiplexing modes. This parameter is a threshold value of the traffic that a cell or its surrounding cells at the same layer can reach. No channels will be allocated to assignment procedure in the cell when TCH channel occupancy rate of a cell and its adjacent cell of the same layer (quantity of TCHs occupied by a cell and its adjacent cells of the same layer/total of TCHs occupied by a cell and its adjacent cells of the same layer) reaches this value. Meanwhile, the handover will not be affected by this parameter.

A minimal acceptable C/N value can be specified when distributing a channel to a call. It is to make channel selection. The parameter “CnThresInd” determines minimal acceptable C/N value. The principle of channel allocation is to select an idle channel that can fulfills the value as best as possible. The parameter also affects the optimization of the uplink mobile transmission power.

BTS needs to measure interference on the unallocated traffic channels, calculate the average of the recent interference values periodically and convert it into corresponding interference band information, and then transfer it to BSC in the “RF RESOURCE INDICATION” message as a factor to be considered in channel allocation of BSC. This is one of the BTS parameters.

BTS needs to measure interference on unallocated traffic channels, calculate the average of recent interference values periodically and convert it into corresponding interference band information, and transfer it to BSC in the “RF RESOURCE INDICATION” message as a factor to be considered in channel allocation of BSC. The interface boundaries are used to help convert the interference level (average) value into corresponding interference band information. Altogether six boundaries determine five interference bands. In fact, it is unnecessary to set interference boundary 0 and interference boundary 5. One represents infinity and the other represents negative infinity. This parameter, describing the remaining four boundaries, is one of the configuration parameters of BTS.

Parameter Names BSS Names ZT

E D

efau

lt

Pak

tel D

efau

lt 9

00

Pak

tel D

efau

lt 1

800

Ran

ge

Uni

t

ZTE Description Paktel Comment Comments

Related Parameters/ further comments

Judging Standard of RConFailCriterion 1 1 1

Level Ths of Survey RxLevThs 10 n/a n/a 0-63 Rxlev Not applicable if ConFailCriterion=1

Rx Quality Ths of Su RxQualThs 6 n/a n/a 0-7 Rxqual Not applicable if ConFailCriterion=1

Survey RLF Period RxLevQualPrd 10 n/a n/a 1-255 SACCH Not applicable if ConFailCriterion=1

Send Overload MessaOverloadPrd 10 10 10 1-31 102TDMA Frame

PHY INFO Period duri T3105 28 28 28 Cannot be changed

BA Indication BcchBaInd 1

Time Int of MS Access T3122 10 10 10 0-255 sec

Adjacent Cell Num of MultibandReport 0 2 3

SMS Mode in Cell BroSmsCBUsed 0 0 0 Need an extra server

MS DTX Mode (on B DtxUplinkBcch 1 1 1

MS DTX Mode (on S DTXUPLINKSA 5 1 1 see description of DtxUplinkBcch

Whether to Perform HaPreprocess 0

CCCH Structure Para CcchConf 1 0 0

1: Based on uplink SACCH error rate (in order to ensure the same judgment standard in the uplink and downlink directions)2: based on measured value of RXLEV/RXQUAL.

The network side (BTS) may judge whether the radio link fails according to two standards: One based on the uplink SACCH error rate and the other based on measured value of RXLEV/RXQUAL. This parameter determines which method BTS uses as the standard to judge connection failure. If SACCH error rate is used as the standard to judge connection failure, BTS will use the same “RadioLkTimeout” parameter value and the same process as MS does, thus avoiding inconsistent judgment standards in the uplink and downlink directions. Meanwhile, parameters “RxLevThs” and “RxQualThs” are invalid. If the measured value of RXLEV/RXQUAL is used as the standard to judge connection failure, BTS will use the two parameters RxLevThs and RxQualThs.

The network side (BTS) may judge whether the radio link fails according to two standards: One based on uplink SACCH error rate and the other based on measured value of RXLEV/RXQUAL. The radio link will be considered as failed when BTS detects that the uplink receiving level is smaller than a certain threshold or the uplink receiving quality is greater than a certain threshold, if the measured value of RXLEV/RXQUAL is used as the standard to judge a connection failure. Parameter RxLevThs specifies the threshold of the receiving level. This parameter is invalid if uplink SACCH error rate is used as the standard to judge connection failure (parameter ConFailCriterion is 1). RxLevThs is one of the configuration parameters of BTS.

The network side (BTS) may judge whether the radio link fails according to two standards of GSM specifications. One is based on uplink SACCH error rate, and the other is based on measured value of “RXLEV/RXQUAL”. The radio link will be considered as failed when BTS detects that the uplink receiving level is smaller than a certain threshold or the uplink receiving quality is greater than a certain threshold if measured value of “RXLEV/RXQUAL” is used as a standard to judge a connection failure. Parameter “RxQualThs” specifies reciving threshold quality. This parameter is invalid if uplink SACCH error rate is used as the standard to judge a connection failure. “RxQualThs” is one of the configuration parameters of BTS.

The period of the network side to test radio link fault (in units of SACCH multi-frame)

TRX will notify BSC according to GSM specifications by sending “OVERLOAD” message periodically until overload disappears, in case of CPU overload of TRX, or downlink CCCH channel overload, or AGCH channel overload. The parameter “OverloadPrd” specifies period for TRX to send “OVERLOAD” message, and it is one of the configuration parameters of BTS (all TRXs under BTS use same period).

The message “RIL3_RR PHYSICAL INFOMATION" is sent during an asynchronous handover of SDCCH channel in order to define the re-sending interval. This timer is one of the configuration parameters of BTS. Timer start conditions: the timer T3105 0 starts when network sends the “RIL3_RR PHYSICAL INFORMATION” message. Timer stop condition: the timer T3105 0 stops when the network receives a layer-2 frame that can be correctly decoded or receives the “HANDOVER FAILURE” message from the old channel. Timeout action: when the timer T3105 0 expires, the “RIL3_RR PHYSICAL INFORMATION” message is repeated.

A timeslot where a common control channel BCCH is located. One cell may have 4 BCCHs at most.

Wait indication time, defines the MS waiting time before the MS attempts another channel request after received IMMEDIATE ASSIGNMENT REJECT message. This timer value is sent to the MS in the IE ‘Wait Indication’ within the IMMEDIATE ASSIGNMENT REJECT message.

0 MS reports the survey results of six known and allowed adjacent cells with the strongest NCC according to the signal intensity, regardless of which frequency band adjacent cells are in1 MS reports the survey result of one adjacent cell with the strongest signals in the frequency bands (excluding that of local cell) in adjacent cell table. In the remaining space, MS reports adjacent cell in local cell frequency band. If still more space is available, MS reports the remaining adjacent cells, regardless of which frequency bands they are in2 MS reports the survey result of two adjacent cells with the strongest signals in the frequency bands (excluding that of local cell) in adjacent cell table. In the remaining space, MS reports adjacent cell in local cell frequency band. If still more space is available, MS reports the remaining adjacent cells, regardless of which frequency bands they are in3 MS reports the survey result of three adjacent cells with the strongest signals in the frequency bands (excluding that of local cell) in adjacent cell table. In the remaining space, MS reports adjacent cell in local cell frequency band. If still more space is available, MS reports the remaining adjacent cells, regardless of which frequency bands they are in

MS in single-frequency GSM system needs only to report contents of 6 adjacent cells with the strongest signals in a frequency band when reporting to the network the survey result of adjacent cells. The operator hopes that, in multi-band networking, MS can enter with priority into a specific frequency band during handover, and that MS reports the survey result according to not only the signal intensity but also the frequency band of the signals, according to actual situation. The “MulbandReport” parameter is to notify MS to report contents of adjacent cells in multiple frequency bands. It is one of system control parameters.

If 900 cells have less 1800 neighbours than 900 neighbours this parameter should have a lower value than 3 in order ot avoid that good 900 neighbours are excluded from the measurement report

Cell broadcasting short messages is also an optional service of BSC according to specifications. Useful information may be broadcasted to MS in the cell through the service, such as weather forecasting and traffic. This parameter determines whether the service of cell broadcasting short messages is available and whether to adopt the Discontinuous Receiving (DRX) mode. However, the fact that BSC can use the service of cell broadcasting short messages does not guarantee that MS can receive short messages. CBCH channel must be configured for the cell for this purpose. On one hand, DRX mode in cell broadcasting short message service can save battery for the MS; on the other hand, MS can choose to receive only the short messages that it is “interested in”.

0 MS can use DTX1 MS should use DTX2 MS should not use DTX3 Reserved

The Discontinuous Transmission (DTX) mode means that the system does not transmit signals during the speech intermission of the subscriber conversation. This parameter controls how MS uses the DTX mode. On one hand, the “RIL3_RR SYSTEM INFORMATION TYPE3” message should be broadcasted to all MSs in the cell; on the other hand, it may be necessary to notify MSs of older versions (of the first stage) through the “RIL3_RR SYSTEM INFORMATION TYPE6” message on SACCH. For MSs of newer versions, the “RIL3_RR SYSTEM INFORMATION TYPE6” message contains DtxUplinkSacch. This parameter is one of the network function parameters.

It is recommended to use DTX when FR/EFR is used but not using DTX when HR is used since there is an increased risk for quality problems

Value TCH/F Channel TCH/H Channel0 MS can use DTX MS should not use DTX1 MS should use DTX MS should not use DTX2 MS should not use DTX MS should not use DTX3 MS should use DTX MS can use DTX4 MS can use DTX MS can use DTX5 MS should use DTX MS should use DTX6 MS should not use DTX MS should use DTX7 MS should use DTX MS should use DTX

The Discontinuous Transmission (DTX) mode means that the system does not transmit signals during the speech intermission of the subscriber conversation. This parameter controls how MSs of newer versions use the DTX mode, that is, notifying the MSs of newer versions through the “RIL3_RR SYSTEM INFORMATION TYPE6” message on SACCH. Notify MSs of older versions (of the first stage) through the “RIL3_RR SYSTEM INFORMATION TYPE6” message on SACCH, and the “RIL3_RR SYSTEM INFORMATION TYPE3” message on SACCH contains the DtxUplinkBcch parameter. This parameter is one of the network function parameters.

0 Not use pretreatment2 Use pretreatment; the average reporting period is two SACCH multi-frames3 Use pretreatment; the average reporting period is three SACCH multi-frames4 Use pretreatment; the average reporting period is four SACCH multi-framesOther values Reserved

The survey report contains the greatest amount (message amount) of Abis interface information. The pretreatment of the survey report can be transferred to BTS to lighten the burden of Abis interface link. BTS, after the pretreatment, averages the survey data of MS with its own, and reports to BSC in a lower frequency. Average reporting period can be two, three or four SACCH multi-frames (480ms), that is, the frequency decreases from the original twice/s to once/2 s, so the message amount of the Abis interface decreases. However, the decreasing of message amount still depends on whether the message length before pretreatment is the same as that after the pretreatment. One disadvantage of pretreatment is that the handover control and power control are not in time, which increases the possibility of disconnection rate. This parameter determines whether to use pretreatment and its period.Value range: See Table 89 for value range of whether to perform handover pretreatment and report period.

*BTS preprocessing to ease the BSC load. For Paktel, the default is 0. However due to high BSC load in certain BSC, Paktel will use 3 with window size of 3 as well. For preprocessing 0, the window size MUST be 6. The measurement report is the Abis interface message with maximum amount (message amount). To reduce the Abis interface link load, BTS pre-processes the measurement report. After a pre-process is used, BTS first performs the handling of the measurement data of both MS and its own and then reports it uplinks to BSC in a low frequency.The period of averaging and uplinks reporting is 2, 3, 4 SACCH multiframes (480ms), namely the frequency is reduced to one time every two seconds from the previously two times every one second. As a result, the Abis message amount is reduced (Whether the message amount is reduced also depends on whether the message length is the same both after and before the pre-process)But the pre-processing has a disadvantage, that is, handover control and power control are not in time enough and the call loss rate is increase more likely. The parameter decides whether to use preprocessing as well as the preprocessing period.

0 One basic physical channel used by the CCCH, not used together with the SDCCH1 One basic physical channel used by the CCCH, used together with the SDCCH2 Two basic physical channels used by the CCCH, not used together with the SDCCH4 Three basic physical channels used by the CCCH, not used together with the SDCCH6 Four basic physical channels used by the CCCH, not used together with the SDCCHOthers Reserved

This is the configuration parameter of Common Control Channel, that is, CCCH_CONF. CCCH in GSM system includes AGCH and PCH, which are to send “ALLOW ACCESS” (that is, Immediately assign) message and paging message respectively. All service channels in every cell share same CCCH. CCCH may be functioned by one or multiple physical channels, depending on the configuration of service channels and traffic model of the cell. CCCH and SDCCH can share same physical channel. The configuration parameter of CCCH, CcchConf, determines the combining mode of CCCH in a cell. This parameter tells two things: 1.BS_CC_CHANS (Number of CCCH); 2.BS_CCCH_SDCCH_COMB (Whether used together with SDCCH). This parameter is broadcasted to all MSs in the cell through the “RIL3_RR SYSTEM INFORMATION TYPE3” message. CcchConf is also one of the system control parameters.

Use non-combined CCCH channel cofigurations for all cells in order to maximise the size of paging capacity and size of Location Area. Note that all cells in the same LA must have the same CCCH configuration

HOC

Parameter Names BSS Names ZT

E D

efa

ult

Pa

kte

l De

fau

lt 9

00

Pa

kte

l De

fau

lt 1

80

0

Ra

ng

e

Un

it

ZT

E D

esc

rip

tion

Pa

kte

l Co

mm

en

t

Comments

UL Intensity HoUlLevWindow 2 6* 6* 1-31 SACCH

DL Intensity HoDlLevWindow 2 6* 6* 1-31 SACCH

UL Quality HoULQualWindow 2 6* 6* 1-31 SACCH

DL Quality HoDLQualWindow 2 6* 6* 1-31 SACCH

Adjacent Cell NCellWindow 2 6* 6* 1-31 SACCH

Distance DistanceWindow 2 6* 6* 1-31 SACCH *For preprocessing of 3, the window size MUST be 3

Allow Zero ZeroAllowed 1 1 1 0 ~ 31 SACCH

UL Intensity HoULLevReserved 1

DL Intensity HoDLLevReserved 1

UL Quality HoULQualReserve 1

DL Quality HoDLQualReserve 1

Adjacent Cell NCellReserved 1

Distance DistanceReserved 1

UL Intensity HoULLevWeight 2 2 2 1 ~ 3 Weighting used when DTX is on

DL Intensity HoDlLevWeight 2 2 2 1 ~ 3 Weighting used when DTX is on

UL Quality HoUlQuaLWeight 2 2 2 1 ~ 3 Weighting used when DTX is on

DL Quality HoDlQuaLWeight 2 2 2 1 ~ 3 Weighting used when DTX is on

Adjacent Cell NCellWeight 1 1 1

UL Rxlev HoULLevThs 10 12 12

DL Rxlev HoDLLevThs 15 15 15

UL Rxqual HoULQualThs 4 4 4

DL Rxqual HoDLQualThs 4 4 4

Related Parameters/ further comments

BSC makes handover decisions in GSM system according to the measurement data. BSC uses a series of average values instead of the original values of the measurement data when making handover decisions, to avoid negative impact of burst measurement values caused by complicated radio transmission. The parameter HoUlLevWindow is the size of the window used to calculate the average value of the uplink signal intensity, that is, the number of samples used in calculating the average.

*For preprocessing of 3, the window size MUST be 3, need to be evaluated, when HoMargin, Holevel effect is checked/tested.

BSC makes handover decisions in GSM system according to the measurement data. BSC uses a series of average values instead of the original values of the measurement data when making handover decisions, to avoid the negative impact of burst measurement values caused by complicated radio transmission. The parameter HoDlLevWindow (averaging window of handover downlink intensity) is the size of the window used to calculate the average value of the downlink signal intensity, the number of the samples used in calculating the average.

*For preprocessing of 3, the window size MUST be 3, need to be evaluated, when HoMargin, Holevel effect is checked/tested.

BSC makes handover decisions in GSM system according to the measurement data. BSC uses a series of average values instead of the original values of the measurement data when making handover decisions, to avoid the negative impact of burst measurement values caused by the complicated radio transmission. The parameter HoUlQualWindow (handover uplink quality average window) is the size of the window used to calculate the average value of the uplink signal intensity, that is, the number of samples used in calculating the average.

*For preprocessing of 3, the window size MUST be 3, need to be evaluated, when HoMargin, Holevel effect is checked/tested.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter HoDlQualWindow (handover downlink quality average window) is the size of the window used to calculate the average value of the downlink signal quality, that is, the number of samples used in calculating the average.

*For preprocessing of 3, the window size MUST be 3, need to be evaluated, when HoMargin, Holevel effect is checked/tested.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter NCellWindow (adjacent cell average window) is the size of the window used to calculate the average value of the signal intensity of adjacent cells, that is, the number of samples used in calculating the average.

*For preprocessing of 3, the window size MUST be 3

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter DistanceWindow (Sampling Count of Distance) is the size of the window used to calculate the average value of the distance from MS to BTS (Actually, it is the timing advance TA), namely the number of samples used in calculating the average.MS can only report the measurement data of six adjacent cells with the strongest signal intensity according to GSM specifications. Therefore, the measurement results of adjacent cells recorded by BSC may be discontinuous. In this case, record the measurement data of the missing cell as 0 (that is, lower than -110dBm). In order to avoid any negative impact of 0 on averaging, suppose that 0 is allowed to appear occasionally to omit it in calculating the average. However, excessive occurrences of 0 indicate that this adjacent cell is of poor signal intensity. The parameter ZeroAllowed is used to determine the occurrence of how many 0s is normal, that is, this can be ignored in calculating the average. To be specific, if the number of the 0s in the sample values used for the average calculation exceeds ZeroAllowed, these sample values are with low reliability, then the measurement average equals to the sum of the reported values dividing NCellWindow. If the number of the 0s in the reported values does not exceed ZeroAllowed, these sample values are within high reliability, then the measurement average equals to the sum of the reported values dividing the balance of NCellWindow subtracting the number of the 0s.

BSC makes handover decisions in GSM system according to the measurement data. BSC uses a series of average values instead of the original values of the measurement data when making handover decisions, to avoid the negative impact of burst measurement values caused by complicated radio transmission. The reserved count of adjacent cells is the number of the average values of the uplink intensity sent in the “Handover Required” message.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter Reserve Count of Adjacent Cell is the number of the average values of the downlink intensity that is transferred in the “Handover Required” message.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter Reserve Count of Adjacent Cell is the number of average values of the uplink quality transferred in the “Handover Required” message.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter Reserve Count of Adjacent Cell is the number of average values of the downlink quality transferred in the “Handover Required” message.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter Reserve Count of Adjacent Cell is the number of average values of the signal intensity of adjacent cells transferred in the “Handover Required” message.

BSC makes handover decisions in GSM system according to the measurement data. In order to avoid the negative impact of burst measurement values caused by the complicated radio transmission, BSC uses a series of average values instead of the original values of the measurement data when making handover decisions. The parameter Reserve Count of Distance is the number of distance averages transferred in the “Handover Required” message.

Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots in a given measurement period in the non-DTX mode, and the other is the average value of the measurement results of some special timeslots in a given measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of measurement results of all timeslots. While the second type of measurement data is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values. The parameter HoUlLevWeight determines the weight for the first type of measurement data (of all timeslots) when averaging the uplink signal intensity for handover. The weight for the second type of measurement data (of some Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots within a measurement period in the non-DTX mode, and the other is the average value of the measurement results of some special timeslots within a measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. The second type is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values. The parameter HoDlLevWeight determines the weight for the first type of measurement data (of all timeslots) when averaging the downlink signal intensity for handover. The weight for the second type of measurement data (of some timeslots) is set to 1 by Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots within a measurement period in the non-DTX mode, and the other is the average value of the measurement results of some special timeslots within a measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. While the second type of measurement data is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values. The parameter HoUlQualWeight determines the weight for the first type of measurement data (of all timeslots) when averaging the uplink signal quality for handover. The weight for the second type of measurement data (of some Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots within a given measurement period in the non-DTX mode, and the other is the average value of the measurement results of some special timeslots within a given measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. The second type is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values. The parameter HoDlQualWeight determines the weight for the first type of measurement data (of all timeslots) when averaging the downlink signal quality for handover. The weight Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots within a measurement period in the non-DTX mode, and the other is the average value of the measurement results of some special timeslots within a measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. The second type is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values. The parameter Adjacent Cell Weight determines the weight for the first type of measurement data (of all timeslots) when averaging the signal intensity of adjacent cells for handover. The weight for the second type of measurement data (of

0 < -1101 -110 ~ -109

... ...62 -49 ~ -48

63 > -48

Handover decision, according to GSM specifications, depends on a series of average values. Uplink receiving strength is one of reasons for handover. Make handover decision according to: When P of closest N average values of uplink signal intensity (P and N stand for the number of average values) are lower than related threshold, carry out handover to enhance uplink signal intensity. HoUlLevThs defines related threshold, HoUlLevN defines related N value, and HoUlLevP defines related P value.Note: Value of HoUlLevThs is usually lower than threshold (parameter PcUlInclLevThs in R_POC table) of the uplink power control (increase). In other words, the power control has higher priority. Carry out the handover if the power control does not work.

< -1101 -110 ~ -1092 -109 ~ -108

... ...61 0

62 -49 ~ -4863 > -48

Handover decision, according to GSM specifications, depends on a series of average values. The downlink receiving strength is one of the reasons for handover. Make the handover decision according to: Carry out the handover to enhance downlink signal intensity when P of closest N average values of downlink signal intensity (P and N stand for the number of the average values) are lower than related threshold. The parameter HoDlLevThs defines related threshold, the parameter HoDlLevN defines related N value, and the parameter HoDlLevP defines related P value.Note: Value of HoDlLevThs is usually lower than threshold (parameter PcDlInclLevThs in R_POC table) of downlink power control (increase). In other words, the power control has higher priority. Carry out the handover when the power control does not work. This parameter is set to 15 (that is, -96dBm ~ -95dBm) by default. Please note that this parameter is 3dB higher than the value of RxLevAccessMin of the cell.

DL threshold should be UL threshold + 6 (Mssens - BTSsens) which is the RxLev difference at system balance

0 0 BER<0.2%1 1 0.2%<BER<0.4%

2 2 0.4%,<BER<0.8%... ... ...

6 6 6.4%<BER<12.8%7 7 12.8%<BER

Handover decision, according to GSM specifications, depends on a series of average values. The uplink receiving quality is one of the reasons for handover. Make the handover decision according to: Carry out the handover to improve the uplink signal quality when P of the closest N average values of the uplink signal quality (P and N stand for the number of the average values) are higher than related threshold. The parameter HoUlQualThs defines related threshold, the parameter HoUlQualN defines related N value, and the parameter HoUlQualP defines related P value.Note: Value of HoUlQualThs is usually higher than threshold (parameter PcUlInclQualThs in R_POC table) of uplink power control (increase). In other words, power control has higher priority. Carry out handover when power control does not work.

Quality HO shall not be made unless it is necessary. Therefore a high threshold is recommended together with a shorter filter.

0 0 BER<0.2%1 1 0.2%<BER,<0.4%2 2 0.4%<BER<0.8%

... ... ...6 6 6.4%<BER<12.8%

7 7 12.8%<BER

Handover decision, according to GSM specifications, depends on a series of average values. Downlink receiving quality is one of reasons for handover. Make handover decision according to: When P of closest N average values of downlink signal quality (P and N stand for the number of the average values) are higher than related threshold, carry out handover to improve downlink signal quality. HoDlQualThs defines related threshold, HoDlQualN defines related N value, and HoDlQualP defines related P value.Note: Value of HoDlQualThs is usually higher than the threshold (parameter PcDlInclQualThs in R_POC table) of downlink power control (increase). In other words, the power control has higher priority. Carry out the handover when the power control does not work.

Quality HO shall not be made unless it is necessary. Therefore a high threshold is recommended together with a shorter filter.

HOC

Parameter Names BSS Names ZT

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CommentsRelated Parameters/ further comments

UL Rxlev of Internal HO INTRAHOULLEVT 35 35 35

DL Rxlev of Internal HO INTRAHODLLEVT 40 40 40

C/I Allow to access special TRX Goodciths 133 n/a n/a 0= -127d Not used in Paktel network. Optional feature

Badciths 130 n/a n/a 0= -127d Not used in Paktel network. Optional feature

Rapid HO RapidHoThs 10 10 10 Rapid HO not used by Paktel Not used but available

Macro-Micro HO MacroMicroHoThs 20 n/a n/a

UL Rxlev HOULLEVN 4 4 4 see description of HoULLevThsDL Rxlev HODLLEVN 4 4 4UL Rxqual HOULQUALN 4 4 4DL Rxqual HODLQUALN 4 4 4UL Rxlev of Internal HO INTRAHOULLEVN 4 4 4DL Rxlev of Internal HO INTRAHODLLEVN 4 4 4

C/I Allow to access special TRX Goodcin 4 4 4

Badci 4 4 4Rapid HO RapidHoN 1 1 1

Macro-Micro HO MacroMicroHoN 2 2 2 1 ~ 255

Distance HO DistanceN 4 4 4PBGT HO PbgtHoN 3 3 3

UL Rxlev HOULLEVP 3 3 3 see description of HoULLevThsDL Rxlev HODLLEVP 3 3 3UL Rxqual HOULQUALP 3 3 3DL Rxqual HODLQUALP 3 3 3UL Rxlev of Internal HO INTRAHOULLEVP 3 3 3DL Rxlev of Internal HO INTRAHODLLEVP 3 3 3

C/I Allow to access special TRX Goodcip 3 3 3

Badcip 3 3 3Distance HO DistanceP 3 3 3PBGT HO PbgtHoP 3 3 3

Time Advance DistanceThs 63 63 63 0-63 DistanceP, DistanceN

Min Interval HoMinInterval 5 5 5 sec

LayerPriority 2 2 2

PbgtHoLayer 3 11 11

Maximal TxPwr MSPWRMAX 5 5 0 Not used anymore

Level of Min Rxlev RxLevMin 15 8 8

Handover Method HoPatternInd T/T/F

Allow SDCCH HO HoControl No No No

HoControl Yes Yes Yes

HoControl Yes Yes YesAllow HO due to distance HoControl No No NoAllow standard PBGT HO HoControl Yes Yes Yes

HoControl No No NoAllow HO based on direction HoControl No No No ZTE: Not available on current BSC SWAllow concentric HO HoControl No No No

HoControl No No No

HoControl No No No

HoControl No No No

HoControl No No NoAllow rapid HO HoControl No No NoAllow Macro-micro delay HO HoControl No No NoAllow Micro-micro delay HO HoControl No No NoAllow internal HO based on TA HoControl No No No

HO Failure Penalty Period HOFAILPENALTYT 7 5s* 5s* 1 ~ 255

Allow dynamic priority difference DynPrioOffset 2 1 1 1-7 related to direction based HO

Allow PBGT difference PbgtOffset 3 3 3 1-20 related to direction based HO

TrafficHoLayerCtl 1

TrafficHoFreqCtl 0 0-1

Ths of HO on traffic (%) TrafficThs 70 30-70

Default Min Rxlev RLMDEF 15 Not used anymore

Default Min TxPwr TPM 15 Not used anymore

Default Min PBGT Ths HoMarginDef 15 Not used anymore

Cell Intra HO Ths based on TA TaIntraThs 60 Handover based on TA is not used by Paktel

TaIntraHyst 1 Handover based on TA is not used by Paktel

TaIntraP 3 Handover based on TA is not used by Paktel

0 < -1101 -110 ~ -1092 -109 ~ -108

... ...61 -50 ~ -4962 -49 ~ -48

63 > -48

Handover decision, according to GSM specifications, depends on a series of average values. Uplink interference (of same frequency) is one of the reasons for handover. Make the handover decision according to: Carry out the handover to weaken the uplink interference (of the same frequency) when the handover conditions for the uplink quality are satisfied and if P of the closest N average values of the uplink signal intensity (P and N stand for the number of the average values) are higher than related threshold. The parameter IntraHoUlLevThs defines related threshold, the parameter IntraHoUlLevN defines related N value, and the parameter IntraHoUlLevP defines related P value. Carry out the internal handover in the cell whenever the handover condition is met.Note: Value of IntraHoUlLevThs is usually higher than threshold (parameter PcUlRedLevThs in R_POC table) of uplink power control (decrease).

0 < -1101 -110 ~ -1092 -109 ~ -108

... ...61 -50 ~ -4962 -49 ~ -48

63 > -48

Handover decision, according to GSM specifications, depends on a series of average values. Downlink frequency interference is one of the reasons for handover. Make the handover decision according to: Carry out the handover to weaken the downlink frequency interference when the handover condition for the downlink quality is met and if P of the closest N average values of the downlink signal intensity (P and N stand for the number of the average values) are higher than related threshold. The parameter IntraHoDlLevThs defines related threshold, the parameter IntraHoDlLevN defines related N value, and the parameter IntraHoDlLevP defines related P value. Carry out the internal handover in the cell whenever the handover condition is met.Note: Value of IntraHoDlLevThs is usually lower than (or equal to) threshold (parameter PcDlRedLevThs in R_POC table) value of downlink power control (decrease).

This parameter sets the threshold for which interference HO (intra cell) is initiated together with a quality threshold. If the quality is bad and signal level is more than -75 dBm it should be considered as interference

0 -127 db1 -126 dB

... ...255 128 dB

Handover decision, according to GSM specifications, depends on a series of average values. The good C/I of the current special layer frequency is one of the reasons for concentric circle handover. Make the handover decision according to: Carry out the handover if the current call is on the common TRX (frequency), and P of the closest N C/I values are higher than related threshold. C/I is the reason for this handover, and only one handover from common TRX to special TRX. The parameter GoodCiThs defines related threshold, the parameter GoodCiN defines related N value, and the parameter GoodCiP defines related P value.

C/I when Allow HO from Special TRX

0 -127dB1 -126dB2 -125dB

... ...255 128dB

Handover decision, according to GSM specifications, depends on a series of average values. C/I of the current special layer frequency is one of the reasons for concentric circle handover. Make the handover decision according to: Carry out the handover if current call is on special TRX (frequency), and P of closest N C/I values are lower than related threshold. C/I is the reason for this handover, and only one handover from special TRX to common TRX. The parameter BadCiThs defines related threshold, the parameter BadCiN defines related N value, and the parameter BadCiP defines related P value.

0 < -1101 -110 ~ -109

... ...62 -49 ~ -48

63 > -48

Some parameters are necessary for rapid attenuation handover. RapidHoThs is the threshold of signal intensity. The condition of the rapid attenuation handover is met when the measured signal intensity of a call is continuously lower than this threshold. The candidate cell is a specific related cell in adjacent cells. RapidHoN is a counter value, minimum times that measured signal intensity value of calls are always lower that threshold.Note: RapidHoThs parameter is set as 15 (-96 dBm ~ -95 dBm) by default, same as level threshold of common handover. The setting of the parameter RapidHoN should ensure that the rapid handover is at least faster than the common signal level handover.

0 < -1101 -110 ~ -109

... ...61 -50 ~ -4962 -49 ~ -48

63 > -48

Some parameters are necessary for macro-micro handover. The macro-micro handover threshold is a signal intensity threshold. The call can be handed over to this adjacent micro cell when the measured value of the signal intensity of an adjacent micro cell is always higher than the MacroMicroHoThs value (threshold) for a certain number of times. This can enable a slowly moving MS to enter the micro cell layer. Number of times mentioned above depends on MacroMicroHoN parameter of each adjacent cell.

It is good to have a 6 dB margin to HoDLLevThs (=18) in order to avoid that HO into 1800 cells are doing Ho out directly by DL level HO

Threshold for allowing HO to Microcell. Optional Feature - not available

C/I when Allow HO from Special TRX

Some parameters are necessary for macro-micro handover. There is a signal intensity threshold and a counter value. N value of the macro-micro handover (MacroMicroHoN) is a counter value that is related to a given adjacent micro cell. The call can be handed over to this adjacent micro cell when the measured value of the signal intensity of this adjacent micro cell is consecutively higher than the MacroMicroHoThs value for MacroMicroHoN times. This enables a slowly moving MS to enter the micro cell. This parameter describes the counter value used by local cell as micro cell.Note: The setting of the parameter MacroMicroHoN in local micro cell is subject to the size of local cell and standard used to measure the moving speed of MS.

How many samples are needed for triggering MacroMicro Ho.

0 0 550m1 1 1100m2 2 1650m

... ... ...63 63 34650m

Handover decision, according to GSM specifications, depends on a series of average values. The distance between MS and BTS is also one reason for handover. Make the handover decision according to: When P of the closest N average values of the timing advance (P and N stand for the number of the average values) are higher than related threshold, carry out the handover to make MS stay inside the service range of the cell. The parameter DistanceN defines the relevant N value, and the parameter DistanceP defines the relevant P value.

C/I when Allow HO from Special TRX

0 0s1 1s... ...

31 31s

The system can restrict the frequent inter-cell handover through the parameter HoMinInterval to prevent MS that is just handed over to a cell from being immediately handed over to another cell (which often occurs on the border of two cells), and thus ensuring the communication quality and the system performance. This parameter defines a time length. That is, the next handover is possible only when the time from the last handover of MS exceeds this value. Please note that this parameter affects only the inter-cell handover, but not the common intra-cell handover or the intra-cell concentric handover. Besides, every micro cell has its own handover strategies. Therefore, this parameter works only for the macro cell or upper layers.

Hierarchy Priority Choose Parameter

Priority cell when trigger HO due to qual/level. 1=Upper, Same, the rest.2=Same, Upper, the rest. 3=all layers treated alike

Three options are available to selecting and sequencing candidate cells for calls when the condition for the level/quality handover (signal level and signal quality) is met: Adjacent cells at the upper layer of local cell have the highest priority for call handover, then adjacent cells at the same layer, and finally other adjacent cells; Adjacent cells at the same layer of local cell have the highest priority for call handover, then adjacent cells at the upper layer, and finally other adjacent cells; All adjacent cells have the same priority.This parameter determines which one of the above three options will be selected. When carrying out the handover control related to level/quality during the service process, this parameter has a higher priority than adjacent cell.Value range: 1 (UPPER_LAYER): Adjacent cells at upper layer have highest priority, then those at the same layer, and finally other adjacent cells; 2 (SAME_LAYER): Adjacent cells at same layer have highest priority, then those at the upper layer, and finally other adjacent cells; 3 (ALL_LAYER): All adjacent cells have same priority.Note: Generally option 1 is adopted for the micro cell. That is, when it is necessary to hand over the call in the micro cell because of signal quality or intensity problems, the macro cell layer has the highest priority

When quality or low level HO is initiated there should be no restrictions on target cells

Hierarchy that can apply standard PBGT HO

0 0: PBGT handover to adjacent cells at the same layer but of

different frequency is impossible; 1: PBGT handover to adjacent cells at

the same layer but of a different frequency is possible

1 0: PBGT handover to adjacent cells without hierarchy is

impossible; 1: PBGT handover to adjacent cells without hierarchy is

possible2 0: PBGT handover to adjacent

cells at the upper layer is impossible; 1: PBGT handover to

adjacent cells at the upper layer is possible

3 0: PBGT handover to adjacent cells at the lower layer is

impossible; 1: PBGT handover to adjacent cells at the lower layer is

possible

Some restrictions or controls are necessary for the standard PBGT handover in multi-layer and dual-band network applications. The parameter PbgtHoLayer is just used to control the applications of the PBGT handover.

How PBGT HO should be performed in Multilayer network. This parameter is a 4 bit. Bit 1=same layer, Bit 2=to undefined adjacent, Bit 3=Upper, Bit 4=Lower

It is maximum transmission power available for MS in adjacent cells.

0 < -1101 -110 ~ -1092 -109 ~ -108

... ...63 > -48

Minimum receiving strength level (on BCCH channel) needed to hand over MS to local cell. This is one of the parameters to distinguish the priority cell during a handover control process. MS in the cell monitors constantly the intensity on the BCCH channel of adjacent cells. But only adjacent cells with receiving strength higher than RxLevMin can be potential candidates for the handover. Handover may occur when RxLevMin of MS required by adjacent cells is lower than RxLevMin of MS required by local cell. This indicates that MS is at the edge of the cell.

This parameter has been replanced by a parameter set per adjacency

Bit 1 1: Synchronous handover is possible; 0: Synchronous handover

is impossibleBit 2 1: Asynchronous handover is

possible; 0: Asynchronous handover is impossible

Bit 3 1: Pseudo-synchronous handover is possible; 0: Pseudo-

synchronous handover is impossible

Bit 4 -Bit 5 ~ 8 Reserved; always 0

Three modes are available for the handover according to specifications: Synchronization: TA of destination cell is the same as that of the source cell Asynchronization: TA of destination cell is unknown Pseudo-synchronization: MS is able to calculate the TA of the destination cellThis parameter determines what handover modes are available for BSC.

0: SDCCH handover impossible2 1: Inter-cell handover caused by

uplink interference is possible0: Inter-cell handover caused by uplink interference is impossible

3 1: Inter-cell handover caused by downlink interference is possible0: Inter-cell handover caused by

downlink interference is impossible4 1: Handover caused by distance

is possible0: Handover caused by distance is

impossible5 1: The standard PBGT handover

is possible0: The standard PBGT handover is

impossible6 1: Automatic handover based on

traffic is possible0: Automatic handover based on

traffic is impossible7 1: Direction-based handover

possible0: Direction-based handover

impossible8 1: Concentric circle handover

possible0: Concentric circle handover

impossible9 1: Possible to carry out the inter-cell handover caused by downlink interference between channels of

the super TRX0: Impossible to carry out the inter-cell handover caused by downlink interference between channels of

the super TRX

The specifications define multiple trigger conditions for the handover. The introduction of micro cells also brings many handover algorithms. Except for the basic handover types based on the receiving strength and quality, it is not a must for the cell to implement other optional handover types. The parameter HoControl determines whether to implement other handover types in the cell.

Allow Inter-cell HO Att Due to UL Interf

Allow Inter-cell HO Att Due to DL Interf

Allow automatic HO base on traffic

Allow inter-cell HO in Super TRX Channel due to DL Interf

Allow inter-cell HO in Super TRX Channel due to UL Interf

Allow adjacent cells HO in Super TRX Channel due to PBGT

Allow dynamic adjustment of HO priority

measurement report

It is a protection period to prevent immediate handover after handover failure has occurred. The unit time is the period of survey or pretreatment survey report.

* Depending on the ho preprocessing, the paktel default should be 5 seconds. Calculation is needed to determine the value with respect to the final target of 5 seconds. For instance, if HO Preprocess = 0, HO failure penalty period = 10 (10 SACCH ~ 5 sec). If HO Preprocess = 3, HO failure penalty period = 4 (~4x1.5sec = 6 sec)

It is tolerable dynamic priority difference between destination cell and local cell during a handover. Check successively tolerable dynamic priority difference, tolerable power budget difference, and moving direction of MS, in handover algorithm of the cell.

It is the tolerable power budget difference between destination cell and local cell during a handover.

Control Value of HO on traffic (hierarchy)

Used in Layering Structure. 0=not defined1=same, 2=upper3=lower.

The control value of layer for traffic handover, layer with the highest priority for a handover

Paktel does not use traffic based handover since it decreases network quality

Control Value of HO on traffic (frequency)

The control value of layer for traffic handover, frequency with the highest priority for a handover

Paktel does not use traffic based handover since it decreases network quality

The threshold used by the database for traffic alarm in a cell.

Paktel does not use traffic based handover since it decreases network quality

It is the default minimum threshold for receiving strength used during handover to the undefined adjacent cell.

It is the default maximum transmission power required by MS in the undefined adjacent cell.

It is the default minimum threshold value for receiving strength used during handover to the undefined adjacent cell.

TaIntraThsTaIntraThs Threshold of TA-based intra-cell handover 1 ~ 63

TaIntraHystTaIntraHyst Hysteresis of TA-based intra-cell handover 1 ~

5TaIntraPTaIntraP P value of TA-based intra-cell handover 1 ~ 32TaIntraNTaIntraN N value of TA-based intra-cell handover 1 ~ 32

Another service handover type, TA-based intra-cell handover, is available after support the extended cell. These four parameters respectively control the threshold, hysteresis, P value and N value of the TA-based on the intra-cell handover.Note: The TaIntraThs parameter is set to 60 by default, and TaIntraHyst to 1.The P and N values can be set to 3 and 4 respectively.

Cell Intra HO Hysteresis based on TA

Cell Intra HO P value based on TA

Parameter Names BSS Names Table ZT

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Comments

Sample Count of Uplink Level PcULLevWindow POC_SAMPLING_ 6 6 6 1-32 SACCH

Sample Count of Downlink Level PcDLLevWindow POC_SAMPLING_ 6 6 6 1-32 SACCH see PcULLevWindow

Sample Count of Uplink Quality PcULQualWindow POC_SAMPLING_ 6 6 6 1-32 SACCH see PcULLevWindow

DL Quality PcDLQualWindow POC_SAMPLING_ 6 6 6 1-32 SACCH see PcULLevWindow

Reserve Count of Uplink Level PcULLevWeight 2 2 2 1 ~ 3 SACCH

DL Level PcDLLevWeight 2 2 2 1 ~ 3 SACCH

Reserve Count of Uplink Quality PcULQualWeight 2 2 2 1 ~ 3 SACCH

Reserve Count of Downlink Quality PcDLQualWeight 2 2 2 1 ~ 3 SACCH

Performance Survey Report Period PwrCtrlReportPrd 10 10 10

Pwr incr due to UL Level PcUIIncILevThs POC_TABLE 18 22 22

Pwr incr due to DL Level PcDlInclLevThs POC_TABLE 18 26 26

Pwr dec due to UL Level PcUlRedLevThs POC_TABLE 22 30 30

Pwr dec due to DL Level PcDlRedLevThs POC_TABLE 22 34 34

Related Parameters/ further comments

BSC makes power control decisions in GSM system according to the measurement data. BSC uses a series of average values instead of original values form the measurement data when making power control decisions, to avoid the effect of burst measurement value caused by complicated radio transmission and to reduce the effect of burst measurement value. PcUlLevWindow (power control uplink level average window) is the size of the window used to calculate the average value of the uplink signal intensity, that is, the number of samples used in calculating the average.

Power Control shall be fast and short filters shall be applied. It is important that Power Control windows are shorter than HO windows

BSC makes power control decisions according to the measurement data in GSM system. BSC uses a series of average values instead of original values of measurement data when making power control decisions, to avoid the effect of burst measurement values caused by complicated radio transmission and to reduce the effect of burst measurement values. The parameter PcDlLevWindow (power control downlink intensity average window) is the size of the window used to calculate the average value of downlink signal intensity, that is, the number of samples used in calculating the average value.

BSC makes power control decisions in GSM system according to measurement data. BSC uses a series of average values instead of original values of the measurement data when making power control decisions, to avoid effect of burst measurement values caused by complicated radio transmission and to reduce effect of burst measurement values. The parameter PcUlQualWindow (power control uplink quality average window) is the size of the window used to calculate the average value of uplink signal quality, that is, number of samples used in calculating the average.

BSC makes power control decisions in GSM system according to the measurement data. BSC uses a series of average values instead of the original values of the measurement data when making power control decisions, to avoid the effect of burst measurement value caused by complicated radio transmission and to reduce the effect of burst measurement value. The parameter PcDlQualWindow (power control downlink quality average window) is the size of the window used to calculate average value of downlink signal quality, the number of samples used in calculating the average

Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals in the voice intermittent period during the subscriber conversation. Two types of measurement data will be reported to BSC when using DTX mode. One is average value of the measurement results of all timeslots in a measurement period in non-DTX mode, and the other is average value of the measurement results of some specific timeslots in a measurement period in DTX mode. Therefore, BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. While the second type of measurement data is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for the two types of measurement data when averaging the measurement values, The parameter PcUlLevWeight determines the weight for the first type of measurement data (of all timeslots) when averaging downlink signal intensity for power control. The weight for the second type of measurement data (of some timeslots) is set to 1 by Discontinuous Transmission (DTX) mode, according to GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots within a measurement period in the non-DTX mode, and the other is the average value of the measurement results of some specific timeslots within a measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. However, the second type is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values. The parameter PcDlLevWeight determines the weight for the first type of measurement data (of all timeslots) when averaging the downlink signal intensity for power control. The weight for the second type of measurement data (for some timeslots) is set to 1 by default.Discontinuous Transmission (DTX) mode, according to the GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. When using the DTX mode, two types of measurement data will be reported to BSC. One is the average value of the measurement results of all timeslots within a measurement period in the non-DTX mode, and the other is the average value of the measurement results of some specific timeslots within a measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. While the second type of measurement data is not that accurate, because it is the average value of the measurement results of some timeslots. Therefore, BSC needs to use different weights for the two types of measurement data when averaging the measurement values, The parameter PcUlQualWeight determines the weight for the first type of measurement data (of all timeslots) when averaging the uplink signal quality for power control. The weight for the second type of measurement data (of some timeslots) is set to 1 by default.Discontinuous Transmission (DTX) mode, according to the GSM specifications, refers to a process in which the system does not transmit signals during the voice intermittent period of the subscriber conversation. Two types of measurement data will be reported to BSC when using DTX mode. One is the average value of the measurement results of all timeslots within a given measurement period in the non-DTX mode, and the other is the average value of the measurement results of some specific timeslots within a given measurement period in the DTX mode. BSC needs to select one type of measurement data according to the actual situation for calculating the average value. The first type of measurement data is more accurate, because it is the average value of the measurement results of all timeslots. The second type is not that accurate, because it is the average of the measurement results of some timeslots. Therefore, BSC needs to use different weights for these two types of measurement data when averaging the measurement values, The parameter PcDlQualWeight determines the weight for the first type of measurement data (of all timeslots) when averaging downlink signal quality for power control. The weight for the second type of measurement data (of some timeslots) is set to 1 by default.

Period of performance survey report for power control (51 multiframes)

0 < -1101 -110 ~ -109... ...62 -49 ~ -4863 > -48

Power control decisions, according to GSM specifications, depend on a series of average values. The uplink receiving strength is one of the reasons for power increase in the uplink MS. Make the power increase decision according to: When P of the closest N average values of the uplink signal intensity (P and N stand for the number of the average values) are lower than related threshold, the transmission power of the uplink MS must be increased to enhance the uplink signal intensity. The parameter PcUlInclLevThs defines related threshold, the parameter PcUlInclLevN defines related N value, and the parameter PcUlInclLevP defines related P value.

0 < -1101 -110 ~ -109... ...62 -49 ~ -4863 > -48

Power control decisions, according to GSM specifications, depend on a series of average values. The downlink receiving strength is one of the reasons for power increase in the downlink BTS. Make the power increase decision according to: When P of the closest N average values of the downlink signal intensity (P and N stand for the number of the average values) are lower than related threshold, the transmission power of the downlink BTS must be increased to enhance the downlink signal intensity. The parameter PcDlInclLevThs defines related threshold value, the parameter PcDlInclLevN defines related N value, and the parameter PcDlInclLevP defines related P value.

downlink thresholds shall have a difference of 6 dB at system balance (Mssens - BTSsens) = 6 dB

0 < -1101 -110 ~ -1092 -109 ~ -108... ...61 -50 ~ -4962 -49 ~ -4863 > -48

Power control decisions, according to GSM specifications, depend on a series of average values. The uplink receiving strength is one of the reasons for power decrease in the uplink MS. Make the power decrease decision according to: When P of the closest N average values of the uplink signal intensity (P and N stand for the number of the average values) are higher than related threshold, the transmission power of the uplink MS must be decreased to weaken the uplink signal intensity. The parameter PcUlRedLevThs defines related threshold value, the parameter PcUlRedLevN defines related N value, and the parameter PcUlRedLevP defines related P value.

0 < -1101 -110 ~ -1092 -109 ~ -108... ...61 -50 ~ -4962 -49 ~ -4863 > -48

Power control decisions, according to GSM specifications, depend on a series of average values. The downlink receiving strength is one of the reasons for power decrease in the downlink BTS. Make the power decrease decision according to: When P of the closest N average values of the downlink signal intensity (P and N stand for the number of the average values) are higher than related threshold, the transmission power of the downlink BTS must be decreased to weaken the downlink signal intensity. The parameter PcDlRedLevThs defines related threshold value, the parameter PcDlRedLevN defines related N value, and the parameter PcDlRedLevP defines related P value.

downlink thresholds shall have a difference of 6 dB at system balance (Mssens - BTSsens) = 6 dB

Parameter Names BSS Names Table ZT

E D

efa

ult

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l De

fau

lt 9

00

Pa

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l De

fau

lt 1

80

0

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Un

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Pa

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Comments

Related Parameters/ further comments

Pwr incr due to UL quality PcUlInclQualThs POC_TABLE 3 2 2

Pwr incr due to DL quality PcDLIncQual POC_TABLE 3 2 2

Pwr dec due to UL quality PcULRedQual POC_TABLE 0 0 0

Pwr dec due to DL quality PcDLRedQual POC_TABLE 0 0 0

Pwr incr due to UL Level PcUlInclLevP POC_TABLE 3 3 3 1 to 31 see description of PcUIIncILevThsPwr incr due to DL Level PCDLINCLLEVP POC_TABLE 3 3 3 1 to 31 see description of PcDlInclLevThsPwr dec due to UL Level PCULREDLEVP POC_TABLE 3 3 3 1 to 31 see description of PcUlRedLevThsPwr dec due to DL Level PCDLREDLEVP POC_TABLE 3 3 3 1 to 31 see description of PcDlRedLevThsPwr incr due to UL quality PcUlInclQualP POC_TABLE 3 3 3 1 to 31 see description of PcUlInclQualThsPwr incr due to DL quality PCDLINCLQUALP POC_TABLE 3 3 3 1 to 31 see description of PcDLIncQualPwr dec due to UL quality PCULREDQUALP POC_TABLE 3 3 3 1 to 31 see description of PcULRedQualPwr dec due to DL quality PCDLREDQUALP POC_TABLE 3 3 3 1 to 31 see description of PcDLRedQual

Pwr incr due to UL Level PcUlInclLevN POC_TABLE 4 4 4 1 to 31 see description of PcUIIncILevThsPwr incr due to DL Level PCDLINCLLEVN POC_TABLE 4 4 4 1 to 31 see description of PcDlInclLevThsPwr dec due to UL Level PCULREDLEVN POC_TABLE 4 4 4 1 to 31 see description of PcUlRedLevThsPwr dec due to DL Level PCDLREDLEVN POC_TABLE 4 4 4 1 to 31 see description of PcDlRedLevThsPwr incr due to UL quality PcUlInclQualN POC_TABLE 4 4 4 1 to 31 see description of PcUlInclQualThsPwr incr due to DL quality PCDLINCLQUALN POC_TABLE 4 4 4 1 to 31 see description of PcDLIncQualPwr dec due to UL quality PCULREDQUALN POC_TABLE 4 4 4 1 to 31 see description of PcULRedQualPwr dec due to DL quality PCDLREDQUALN POC_TABLE 4 4 4 1 to 31 see description of PcDLRedQual

Power Control Object No. PcID Number of the power control object

Allow Rapid Power Control RapidPc POC_TABLE No No No

Power Level 0 (max value of pwr dec) PwrDecrLimit POC_TABLE 24 10 10 0 ~ 38 dB Paktel should enablePower Level 1 (max value of pwr dec) PwrDecrLimit POC_TABLE 22 8 8 0 ~ 38 dB Paktel should enablePower Level 2 (max value of pwr dec) PwrDecrLimit POC_TABLE 20 6 6 0 ~ 38 dB Paktel should enablePower Level 3 (max value of pwr dec) PwrDecrLimit POC_TABLE 18 0 0 0 ~ 38 dB Paktel should enablePower Level 4 (max value of pwr dec) PwrDecrLimit POC_TABLE 16 0 0 0 ~ 38 dB Paktel should enablePower Level 5 (max value of pwr dec) PwrDecrLimit POC_TABLE 14 0 0 0 ~ 38 dB Paktel should enablePower Level 6 (max value of pwr dec) PwrDecrLimit POC_TABLE 12 0 0 0 ~ 38 dB Paktel should enablePower Level 7 (max value of pwr dec) PwrDecrLimit POC_TABLE 10 0 0 0 ~ 38 dB Paktel should enable

Min Time Interval of Rxlev Pwr Adjust PcMinInterval POC_TABLE 2 0-32

Allow UL Power Control PwrControlUl POC_TABLE 1 1 1

Allow DL Power Control PwrControlDl POC_TABLE 1 1 1

MS TxPwr Increase Step PwrIncStep POC_TABLE 0 1 1 2 dB Power increase step is the parameter used in both directions.

MS TxPwr decrease Step PwrRedStep POC_TABLE 0 0 0 2 dB Power decrease step is the parameter used in both directions.

MS Max TxPwr MsTxPwrMax POC_TABLE 5 5 0

MS Min TxPwr MsTxPwrMin POC_TABLE 19 19 15 0-31

BS Min TxPwr BsTxPwrMin POC_TABLE 10 15 15 2 dB ZTE: to confirm

0 0 BER<0.2%1 1 0.2%<BER<0.4%2 2 0.4%<BER<0.8%... ... ...7 7 12.8%<BER

Power control decisions, according to GSM specifications, depend on a series of average values. The uplink receiving quality is one of the reasons for power increase in the uplink MS. Make the power increase decision according to: When P of the closest N average values of the uplink signal quality (P and N stand for the number of the average values) are higher than related threshold, the transmission power of the uplink MS must be increased to improve the uplink signal quality. The parameter PcUlInclQualThs defines related threshold value, the parameter PcUlInclQualN defines related N value, and the parameter PcUlInclQualP defines related P value.

It is recommended to use a quality window from 1 to 3

0 0 BER<0.2%1 1 0.2%<BER<0.4%2 2 0.4%<BER<0.8%... ... ...7 7 12.8%<BER

Power control decisions, according to GSM specifications, depend on a series of average values. The downlink receiving quality is one of the reasons for power increase in the downlink BTS. Make the power increase decision according to: When P of the closest N average values of the downlink signal quality (P and N stand for the number of the average values) are higher than related threshold, the transmission power of the downlink BTS must be increased to improve the downlink signal quality. The parameter PcDlInclQualThs defines related threshold value, the parameter PcDlInclQualN defines related N value, and the parameter PcDlInclQualP defines related P value.

It is recommended to use a quality window from 1 to 3

0 0 BER<0.2%1 1 0.2%<BER<0.4%2 2 0.4%<BER<0.8%... ... ...7 7 12.8%<BER

Power control decisions, according to GSM specifications, depend on a series of average values. Uplink receiving quality is one of reasons for power decrease in uplink MS. Make power decrease decision according to: When P of closest N average values of uplink signal quality (P and N stand for number of average values) are lower than related threshold, transmission power of uplink MS must be decreased to weaken uplink signal quality. The parameter PcUlRedQualThs defines related threshold value, the parameter PcUlRedQualN defines related N value, and the parameter PcUlRedQualP defines related P value.

By allowing power reduction at RxQual = 0 interference levels can be lowered for the whole network.

0 0 BER<0.2%1 1 0.2%<BER<0.4%2 2 0.4%<BER<0.8%... ... ...7 7 12.8%<BER

Power control decisions, according to GSM specifications, depend on a series of average values. The downlink receiving quality is one of the reasons for power decrease in the downlink BTS. Make the power decrease decision according to: When P of the closest N average values of the downlink signal quality (P and N stand for the number of the average values) are lower than related threshold, the transmission power of the downlink BTS must be decreased to weaken the downlink signal quality. The parameter PcDlRedQualThs defines related threshold value, the parameter PcDlRedQualN defines related N value, and the parameter PcDlRedQualP defines related P value.

By allowing power reduction at RxQual = 0 interference levels can be lowered for the whole network.

False: Not using the rapid power control processTrue: Using the rapid power control process

Whether to allow the use of rapid power control process. The rapid power control process is an optional item of BSC. On one hand, it can decrease the interference of the whole system; on the other hand, it can meet the need of dynamic power control of the rapidly moving MS. Each amplitude of power control used by the rapid power control process is not a fixed value, but an integer multiple of the power control step (increase and decrease) of the cell parameter. The parameter RapidPc determines the availability of the rapid power control process.

fast power control reduces interference levels in the network and can reduce Call Drop Rate and number of quality HO by fast power increase

The system will set specific power decrease maximum limit corresponding to each quality level to prevent MS from disconnecting because of the rapid power decrease when carrying out the rapid power control for quality reasons. For example, the parameter PwrDecrLimit 0 determines maximum power decrease limit for (BER<0.2%) calls with quality level 0. This parameter works for both uplink and downlink.This parameter can be taken as an array of size eight, each of which is one byte. The parameter PwrDecrLimit n determines maxmium power decrease available for calls with quality level as n. Value range of the elements is 0 ~ 38, standing for 0 ~ 38 dBNote: Default value can be set as 38. Set corresponding limits for power decrease according to performance statistics parameters, if the power decrease causes too many disconnections.see description of Power Level 0 (max value of pwr dec)see description of Power Level 0 (max value of pwr dec)see description of Power Level 0 (max value of pwr dec)see description of Power Level 0 (max value of pwr dec)see description of Power Level 0 (max value of pwr dec)see description of Power Level 0 (max value of pwr dec)see description of Power Level 0 (max value of pwr dec)

This parameter specifies minimum interval of power control. Usually, two survey reports with the original transmission power will be received after the power control. The signal level information contained in the reports is not accurate and should be ignored (other information, such as adjacent cell information, is still valid). Therefore, a minimum interval of power control should be set. All the signal level information within this period will be ignored.

True: Enabling uplink power controlFalse: Disabling uplink power control

This parameter determines whether to enable uplink power control in the cell, that is, whether to carry out power control on MS in the cell.

True: Enabling uplink power controlFalse: Disabling uplink power control

This parameter determines whether to enable the downlink power control in the cell. That is, whether to carry out the power control on BTS.

0 2 dB1 4 dB2 6 dB

Use max value. It is important to power up fast when required.

0 2 db1 4 dB2 6 dB

Use min value.Power down shall be done carefully in order to not get quality problrms immediately

Default value: 19 ~31 (5dBm) for GSM900 cell 15 ~ 28 (0dBm) for GSM1800 cell

The network controls the transmission power used during communication between MS and BTS, and also sets power for MS through the power command, which is sent on SACCH (The SACCH has 2 header bytes: One is the power control byte and the other is the timing advance byte). MS must obtain the power control header from the downlink SACCH and take the specified transmission power as its output power. If the power level of MS is not enough for this output power, it will output at the closest transmission power that is available. This parameter determines maximum transmission power available for MS in the cell during BSC power control. The parameter MsTxPwrMax is also used by BSC to calculate PBGT value.Note: Usually, set this parameter to the same value as the parameter MsTxPwrMaxCch of the cell.

5=33 dBm for 900. For 1800, use 0=30dBm

Network controls transmission power used during communication between MS and BTS, and sets power for MS through power command, which is sent on SACCH (SACCH has 2 header bytes: One is power control byte, and the other is timing advance byte). MS must obtain power control header from downlink SACCH, and take specified transmission power as its output power. MS outputs at closest transmission power available if power level of MS is not enough for specified output power. During BSC power control, this parameter determines minimal transmission power (that is, lower limit of power control) available for MS in the cell.

19=5 dBm for 900. For 1800, use 15=0dBm. ZTE: to confirm

0 Pn1 Pn -2dB... ...15 Pn -30dB

Network controls transmission power used during communication between BTS and MS, and sets power for BTS through power command. BTS must take the transmission power specified by the power command as its output power. During the BSC power control, this parameter determines minimum transmission power (that is, the lower limit of power control) available for the BTS in the cell. Maxmium power level of BTS is Pn.

Parameter Names BSS Names ZT

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90

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Pa

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18

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Cell HO Priority 3 3 3 0-7

Adjacent Cell Max TxPwr TxPwrMax 5 5 0

Min Rxlev Needed RLMin 15 10 10 0-63

Cell Layer Num NCLayer 1 1,3 1,2

HO PBGT Ths HoMargin 30 30 30

HO Level Ths HMRL 30 28 28

HO Quality Ths HMRQ 30 22 22

Is related cell IsRCell No No No

Synchronize to Adjacent Cell Sync Yes

Related Parameters/ further comments

Consider cell priority according to specifications when sorting candidate cells during handover. Besides, there are two other determinants, traffic and radio status. Priority and traffic play a major role in cell sequencing. When the sorting based on these two gives the same result, sequence the cells according to the radio status.

The higher number, the higher priority. 3 factors when deciding the HO candidate: 1. Priority, 2. Traffic Amount, 3. Radio Resource

The network controls the transmission power during the communication between MS and BTS, and sets the power for MS by using the power command, which is sent on SACCH (The SACCH has 2 header bytes: One is the power control byte, and the other is the timing advance byte). MS must obtain the power control header from the downward SACCH, and takes the specified transmission power as its output power. If the power level of the MS cannot meet the specified power, it will output at the closest transmission power. This parameter stands for the maximum transmission power available for the MS in the cell during BSC power control. The parameter MsTxPwrMax is also used by BSC to calculate the PBGT value.

This value should be the same with the MsTxPwrMaxCch set in every adjacent cell. GSM900 = 5, GSM1800 = 0

MS access to the system is of poor quality and cannot guarantee normal communication process in case of low receiving signal level. Besides, it is a great waste of radio resources of the network. Therefore, the GSM specifications set this parameter, that is, the minimum receiving level, as the threshold for the receiving level of the MS when accessing the network. Besides, it is also one of the standards for the MS to select and reselect cell (a parameter to calculate C1 and C2). This parameter is broadcasted to all MSs in a cell through the “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4” messages. The parameter RxLevMin is also a parameter of cell selection.Note: Generally, the value of this parameter should be close to the MS receiving sensitivity. For some cells with overloaded traffic, the cell RxLevAccessMin may be increased according to the actual requirement to decrease the C1 and C2 values of the cell, and thus decreasing the effective coverage range of the cell. However, a high value of RxLevAccessMin may lead to creating a “blind area” manually at the cell boundaries. At the preliminary running stage of the network, this parameter is generally set to 10 (that is, -101 dBm ~ -100 dBm) or lower, higher than the

Use same value for all neigbour relations and do not use increase this parameter to increase HO success rate. Higher values forcolocated 1800 cells can be discussed

0 N: Undefined1 SAME: Adjacent cell and local cell are in the same layer (PBGT handover possible)2 UPPER: Adjacent cell is the upper layer of local cell (when local cell is a micro cell)3 LOWER: Adjacent cell is the lower layer of local cell (when local cell is a macro cell)Other values Reserved

It is possible to form multi-layer radio coverage in same physical areas with the introduction of multi-layer and dual-frequency network technology, to provide various handover strategies. These handover strategies will not be described in detail in this manual. We can summarize these strategies like this: 1) Restricting the PBGT handover defined by the specifications within the same layer can reduce the handover times during a call, and meanwhile enhances the system reliability and communication quality. 2) The strategies for macro-micro handover depends on the moving speed of the MS. The MS moving with high speed tries to enter the macro cell (the upper layer of the micro cell layer), while the MS moving with slow speed tries to enter the micro cell layer (the lower layer of the macro cell layer). 3) The undefined cell of the service cell can be considered as the candidate cell only in non-PBGT handover and emergencies.

Used in Layering Structure. 0=not defined1=same2=upper3=lower.

0 -24dB1 -23dB... ...47 23dB48 24dB

Handover decision, according to GSM specifications, depends on a series of average values. PBGT value of a certain adjacent cell is also one reason for handover. Make the handover decision according to: Carry out the handover to find a more suitable cell when the PBGT value of an adjacent cell is higher than the related threshold. The parameter HoMarginPbgt stands for threshold that must be used for the PBGT handover from an adjacent cell to local cell.

When using 1x1 SFH higher values than 5 shall not be used for PBGT HO margin, for the test we change it for sukkur-BSC to 29

0 -24dB1 -23dB... ...48 24 dB

Handover decision, according to GSM specifications, depends on a series of average values. Adjacent cells must be screened and sequenced during the handover caused by level. The parameter HoMarginRxLev stands for the threshold used during the handover from an adjacent cell to local cell because of signal intensity.

When using 1x1 SFH higher values than 3 shall not be used for level HO margin, for the test we change it for sukkur-BSC to 27

0 -24dB1 -23dB... ...47 23dB48 24dB

Handover decision, according to GSM specifications, depends on a series of average values. Adjacent cells must be screened and sequenced during the handover caused due to poor quality. The parameter HoMarginRxQual stands for the threshold that must be used during the handover from an adjacent cell to local cell because of signal quality.

When using 1x1 SFH negative HO margins shall not be used. Adjancencies between 900 and 1800 cells can use negative values since interference situation is different

Only the cell related to the service cell can be a candidate in rapid fading handover. This is a parameter of adjacent cell, and is used to indicate whether adjacent cell is related to the service cell.

Paktel is not using Rapid HO

This parameter indicates whether adjacent cell and local cell belong to the same center module.

Parameter Names BSS Names ZT

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18

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Freq Hopping No FhsId 1

Freq Hopping Mode FreqHopMode 0 0 0Freq Hopping Serial No HSN xx xx xx

Freq Group MaArfcnList xxx xxx xxx

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0 ~ 63

0-63

MAI, according to the Frequency Hopping (FH) algorithm defined by the GSM 05.02 specifications, is a function of TDMA Frame Number (FN), Hopping Sequence Number (HSN) and Mobile Allocation Index Offset (MAIO). HSN determines the operation track of the frequency during the frequency hopping process. For the cells close to each other and with the same MA, using different HSNs can avoid frequency utilization conflict during the frequency hopping process. Different TSs can share the same group of MAs and the corresponding HSNs. The only difference lies in that the MAIO is contained in the TS attribute.Note: Use different HSNs for cells close to each other and with same MA, to avoid conflict of frequency utilization in the FH process.

0: No frequency hopping1: basic band frequency hopping2: radio frequency hoping

It determines Frequency Hopping Mode used by the cell.

Lists absolute RF channel number of each frequency in FH group; a sub-set of CA of the cell. This set conveys related information to the MS when notifying it which channel to use.

Lists absolute RF channel number of each frequency in FH group; a sub-set of CA of the cell. This set conveys related information to the MS when notifying it which channel to use.

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Comments

Related Parameters/ further comments

Parameter Names BSS Names ZT

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00

Transceiver No. TrxId 1

TRX Type ? 0

Correlation TelecomLapdLink DN ?

Correlation Radio Carrier No. ?

Assign Priority of TRX TrxPriority 1

Correlation BTts Board ?

Carrier No. RCIDTxPwrMax PowerClass 3

TxPwrMax Modulate Value PwrReduction 0

Absolute Radio Carrier ArfcnList

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The number of the current TRX

Identifying number of the carrier1 ~ 8 Power level of the corresponding carrier frequency

0 ~ 6

0 Common type (outer circle)1 Special type (inner circle)

The type of the TRX; usually use the concentric circle type

DN of Lapdlink used by the base band TRX. It is an internal parameter of OMCR (V2)

The radio carrier number corresponding to this base band TRX

The priority assignment of the carrier frequency of the same type

DN of related devices in this BSS system, SiteID-Rack-Shelf-Panel

Static power level of the TRX in the cell; used to modulate the transmission power of the carrier frequency

List of absolute RF channel number of various frequencies used by the cell. This parameter is broadcasted in some form to MS in the cell through “RIL3_RR SYSTEM INFORMATION TYPE1” message. MS uses this broadcasted parameter to decode Mobile Allocation (MA) table used for frequency hopping. It is better not to support the two frequency bands in one cell, GSM900 and GSM1800, at present.Value range: This parameter can be considered as a data array. Each element is 16-bit and stands for a frequency, with Value ranging from 0 ~ 1023. Arrange the elements in this sequence: If it is a cell with GSM900, arrange the frequencies within the ranges of 1 ~ 124 and 975 ~ 1023 in the ascending order; if the frequency 0 exists, arrange it as the last; if it is a cell with GSM1800, arrange the frequencies in the ascending order. The previous parameter CaFreqNum (number of cell frequencies) determines the number of valid elements (counted from the beginning) in the array. BA frequency band listDescription: List of absolute RF channel number of BCCH carrier monitored by idle MS. This parameter is broadcasted in some form to MS in the cell through “RIL3_RR SYSTEM INFORMATION TYPE2”, “2bis” or “2ter” message.

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ZTE: Not available yet

Always use 0 and do not reduce powel level to reduce coverage since indoor coverage is affected and undefined coverage is created. First option to reduce coverage is tilt, second option is reduction of antenna height

Related Parameters/ further comments

Parameter Names BSS Names ZT

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TS Radio Channel Combination TsChannelComb x x

Training Sequence Code TSC bcc bcc bcc

Frequency Hopping Hop

Mobile Allocation Index Offset MAIO

Frequency Hopping No FhsID

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0-7

0 TCH/F + FACCH/F + SACCH/TF1 TCH/H(0, 1)+ FACCH/H(0, 1)+ SACCH/TH(0, 1)2 TCH/H(0, 0)+ FACCH/H(0, 1)+ SACCH/TH(0, 1)+ TCH/H(1, 1)3 SDCCH/8(0..7)+ SACCH/C8(0..7)4 FCCH + SCH + BCCH + CCCH5 FCCH + SCH + BCCH + CCCH + SDCCH/4(0..3)+ SACCH/C4(0..3)6 BCCH + CCCH7 FCCH + SCH + BCCH + CCCH + SDCCH/4(0..3)+ SACCH/C4(0..3)+ CBCH8 SDCCH/8(0..7)+ SACCH/C8(0..7)+ CBCH9 TCH/F + FACCH/F + SACCH/M10 TCH/F + SACCH/M11 TCH/FD + SACCH/MD12 PBCCH+PCCCH+PDTCH+PACCH+PTCCH13 PCCCH+PDTCH+PACCH+PTCCH14 PDTCH+PACCH+PTCCH15 CTSBCH+CTSPCH+CTSARCH+CTSAGCH16 CTSPCH+CTSARCH+CTSAGCH17 CTSBCH18 CTSBCH+TCH/F+FACCH/F+SACCH/CTS19 E-TCH/F+E-FACCH/F+SACCH/TF20 E-TCH/F+E-FACCH/F+SACCH/M21 E-TCH/F+SACCH/M22 E-TCH/FD+SACCH/MD

True: Supporting frequency hoppingFalse: Not supporting frequency hopping

1 ~ 255

ZT

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Whether to support frequency hopping

This parameter indicates the channel combination mode for TS. It is very important configuration information, and is closely related to attributes BcchArfcn and CcchConf of a CELL. It can also be used to check whether the configuration is correct.

Training serial code of TS. There are eight kinds of training serial codes in all, and they have little correlation with each other. The training serial code is used by self-adaptive equalization circuit at the receiving end as a reference for the time delay compensation. For the TS of the BCCH channel, this parameter must be equal to the BCC of the cell.

CA number that air interface adopts during the communication is an element in MA. Variable “Mobile Allocation Index” is to determine a definite element in MA, 0≤MAI≤n-1. MAI is the function of TDMA frame number FN (or decreasing number RFN), Hop S.N. (HSN) and MAIO, according to designated hop arithmetic of GSM specifications 05.02. MAIO is an initial offset of MAI, to prevent several channels from grabbing same CA at the same time. Several basic frequency hopping unit (time slot or TDMA frame) makes up a frequency hopping group, so they have same MA and HSN, but different MAIO. Same MA and HSN are extracted and put into list of FHS/MA. MAIO of time slot is invalid when frequency hopping group that time slot corresponds to doesn’t hop.

All TCH TRXs in the same site shall have unique MAIOs with one MAIO separation

Frequency hopping system number that this frequency modulation corresponds to

Comments

Training sequence code of this timeslot. TSC usually has 8 types, but poorly related to each other. Serving as a reference when the receive end self-adaption equalizer circuit is used a subsidiary to delay. As for the timeslots where BCCH channels are located, this parameter must be equal to the BCC of the cell.

Related Parameters/ further comments

Training sequence code of this timeslot. TSC usually has 8 types, but poorly related to each other. Serving as a reference when the receive end self-adaption equalizer circuit is used a subsidiary to delay. As for the timeslots where BCCH channels are located, this parameter must be equal to the BCC of the cell.

Training sequence code of this timeslot. TSC usually has 8 types, but poorly related to each other. Serving as a reference when the receive end self-adaption equalizer circuit is used a subsidiary to delay. As for the timeslots where BCCH channels are located, this parameter must be equal to the BCC of the cell.

Parameter Names BSS Names ZT

E D

efa

ult

Pa

kte

l D

efa

ult

90

0

Pa

kte

l D

efa

ult

18

00

Whether to support dynamic HR DynalHREnable

UserCellDynHRPara 0

SinTrxFRToHRThs 65

MULTRXFRTOHRTHS 75

HRTOFRTHS 50

FRToHRKeepTime

HRToFRKeepTime 30

Whether to initiate related parameters of local cell to support dynamic HR

Threshold of single TRX Cell to hand over from full rate to half rate

Threshold value of multiple TRX cells to hand over from full rate to half rate

Threshold value to hand over from half rate to full rate

Protection time to hand over from full rate to half rate

Protection time to hand over TCH/F to TCH/H: 5 minsProtection time to hand over TCH/H to TCH/F: 30 mins

Protection time to hand over from half rate to full rate

TCHReserveRate 40Dynamic HR handover, TCH/F channel reserved rate

Ra

ng

e

Un

it

60 ~ 85 %

60 ~ 85 %

30 ~ 60 %

3 ~ 30 min

15 ~ 60 min

True: Dynamic HR enabledFalse: Dynamic HR disabled

True: Enabling related parameters of local cell to support dynamic HRFalse: Disabling related parameters of local cell to support dynamic HR

0 ~ 60

ZTE Description

N/A

invalid ZTE description

Threshold value of single TRX cell to hand over from full rate to half rate = TCH channels occupied in cell/all available TCH channels in the cell (including IDLE and BUSY). TCH channels contain TCH/F and TCH/H. It is necessary to perform the handover of TCH/F TCH/H, for the traffic is busy in the cell that upper limit corresponds to. Cells fall into two types during the handover from full rate to half rate: Configure only one TRX in the cell Configure two or more TRX in the cellTCH channels are less if only one TRX is configured in the cell and it is necessary to configure BCCH and SDCCH channels. Therefore, there are 6 TCH channels in a single TRX cell. There must be difference between the threshold of single TRX cell and of multiple TRXs, to reflect actual situation better.Threshold falls into RMM module threshold and cell threshold, according to convenience of controlling the cell and difference of the cell. RMM module threshold is default. It is valid to all cells configured with dynamic handover channel under this module. Set threshold for this cell in cell Level 1 setting if it needs special controlling threshold. Threshold RMM module settings is invalid to this cell in this case.

Same as Threshold value of single TRX cell to hand over from full rate to half rate (SINTRXFRTOHRTHS)

Occupation of the channel is random, and it may result in frequent adjustment of channels. Set timer protection after one handover to avoid the frequency. It does not perform the handover during the protection time even if it meets the requirements of handover. Differ handover of TCH/F TCH/H and TCH/H TCH/F. Dynamic HR is to guarantee the cell to provide as many voice channels as possible during the high-traffic, so handover protection time of TCH/F TCH/H is shorter and that of TCH/H TCH/F is longer.

Same as that to hand over from full rate to half rate (FRToHRKeepTime)

N/A

Paktel Comment Comments

Dynamic HR requires additional capacity on Abis if??

Threshold value to HO from HR to FR

Related Parameters/ further comments

Parameter Names BSS Names ZT

E D

efa

ult

Pa

kte

l D

efa

ult

90

0

Pa

kte

l D

efa

ult

18

00

Whether to support GPRS PsSupprt 0 0 0

Network Service Entity Identifier NSEI

BSSGP Virtual Connection Identifier BVC No.

Route Area Code RAC

PUC MUnit No. SPCUMUNITBRP Group BRPGROUP

Cell Reselection Offset ReselOffset

Temporary Offset of Cell Reselection TemporaryOffset

Penalty Time of Cell Reselection PenaltyTime 0

Minimal Time interval of Cell Reselection ? 0

Signal Intensity Threshold Value of HCS HCS_THR

HCS Priority prioClass 0

Reselection Hysteresis on C31 Standard C31_HYST 0

Reselection Hysteresis ReselHysteresis

Route Area Reselection Hysteresis RaReselHYS

Reselection Offset Rules R32_QUAL 0

Minimal Receiving Level Allowed for MS Acce RxLevAsMin

MS Maximum RxPwr before POC by Network MsTxMaxCCH 5 0

Use HCS HCS_EXIST 0

LSA Id LSA_ID

Allow MS Attempting to Access Another Cell RadASRetry 0

Offset between the Cells with Same LSA PrioriLSA_OFFSET 0

MS Signal Intensity Threshold on High Priority PRIO_THR 1

Cell Reselection Survey Report Period (PacketNcRepPerI 7

Cell Reselection Survey Report Period NcRerPerI 3

Ns Survey Report Command MeaOrder 0

Network Control Command CtrlOrder

Minimal Time in non-DRX Mode NcNODrxPer 2

MS Extended Survey Level ExtMeaOrder 0

MS Extended Survey Report Type ExtRepType

Extended Survey Report Interval Time ExtRepPer 0

T3168 T3168 4

T3192 T3192 1

N3102 Decrease Step PanDec 0N3102 Increase Step PanInc 1N3102 Max PanMax 7

Network Operation Mode MNO 1

Time Length after Entering Non-Drx Mode DrxTimeMax 2

Max Blocks Allowed to be Transmitted in EachBsCVMax 15

Package Control Acknowledgement Type DefauCtrlAckType 1

Access Burst Bit Type AccessType 0

Allow Sending SYS16, SYS17 on BCCH AddReselPI2 0

Si3 Sending Position Si3Locate 0

Route Area Color Code RaColor

Priority Level of Package Access Allowed PriAcThr 7

Idle Channel Number Threshold of CS Mode duCsChansThs 2

Sending Rate SendSpeed 1

SPLIT_PG_CYCLE Supported on CCCH SpgcSupport 0

PSI1 Message Repeat Period Psi1RepIper 1

The Network Supports PACKET PSI STATUS PsiStatInd 0

PPCH Load Calculation Period LoadPer 10

PRACH OverLoad Report Period OvLoadPer 10Initial Value of Link Error Counter RLTimeout 20Power Level Threshold of PRACH Overload PrachBusyT 20

Whether the Cell Supports Extended Paging EpageMode 0

Blocks Distributed to PBCCH in Multiframes PbcchBlks 0

Number of Blocks Allowed to be Kept in AccesPagBlkRes 5

Fixed Blocks for PRACH on PCCCH PRCHBLKS 2

Max Retransmission Times of Each Radio PriorMaxReTrans 2

Access and Connection Level of Different RadioPersistLev 0

Min TS Number of Adjacent Channel Require S 2

TS Num of Trans. Random Access TxInteger 2

Release PDCH Channel Immediately PccRel 0

Related Access Class Mobile Phone Access AAccCtrlClass 0

MS Power Control Parameter Alpha Alpha 0

Filter Period of Power: Packet Idle Mode T_Avg_W 0

Filter Period of Power: Packet Transmission T_Avg_T 0

PBCCH Power Decrease according to BCCH PB 0

Survey Position PcMeasChan 0

Sending PSI4 Psi4 send 0

Filter Const of Interference Signal Power N_Avg_I 0

Uplink Power Control Strategy UlPwrCtrl 0

Downlink Power Control Strategy DlPwrCtrl 0

Downlink Power Control Mode PwrCtrlMode 0

Value of Power Decrease based on BCCH on P0 0

Precision PwCtrlLev 0

Receive Power Strength from MS Needed SS_BTS 1

Ra

ng

e

Un

it

ZTE Description0: not support; 1: support parameter indicates if the cell supports GPRS

0 ~ 0xFFFF

0 ~ 65535

0 ~ 255

1 ~ 6 BRP group related to the cell in the interface

Each GPRS cell at the BSSGP layer of the GPRS protocol stack is assigned with one BSSGP Virtual Connection (BVC) (NSEI+BVCI) to facilitate the management. Each BVC must belong to one NSE. NSE is the network service entity. It is numbered uniformly in the entire network, marked with NSEI. Generally, one BSC is divided into one service entity. In view of expandability, the ZXG10 system also allows BSC to be attached with several NSEs.

BSSGP Virtual Connection (BVC) provides an approach for the communications among different BSSGP entities. The peer-to-peer Point-to-Point (PTP) or Point-to-Multipoint PTM or inter-signaling entity transmission of BSSGP PDUs is based on BVC. Each virtual connection has one identifier, that is, BVCI. It enables the network service layer at the bottom layer to route BSSGP PDUs to the peer entity very effectively. Each GPRS cell in one NSE can be identified by a BVCI uniquely. One NSE has only one piece of signaling BVC (BVCI=0).

GPRS system further divides the location area to several routing areas that are identified by RAI (MCC+MNC+LAC+RAC), like the GSM system using the location area to manage a group of cells. In case of MS cell reselection in attach state, if the RAIs of the old and new cells change, “Routing area update” procedure is initiated. MS and SGSN in Standby state know the routing area information, thus when the network has the packet data or circuit data to transmit, it pages MS in that routing area. RAI cannot span more than one SGSN.

: 0 ~ 255, and “0” indicates that the SPCU composite unit is not configured

The composite unit No. of SPCU corresponding to a cell.

dB

dB

s

s

dBm

0 ~ 7

0: No; 1: Yes

0 -52 db1 -48 db... ...22 +12 db... ...31 +48 db

Parameter used at MS side. It is broadcasted to a MS through adjacent cell item of “PSI3” message. Cell reselection in GPRS system follows C32 standard. C32 standard calculation, similar to C2 standard in GSM, contains a cell reselection offset parameter, ReselOff. It is not necessary to present in the packet system message when the offset represented by this parameter is 0 dB.

0 01 102 203 304 405 506 607 Infinite

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. Cell reselection in GPRS system follows C32 standard. C32 standard calculation, similar to C2 standard in GSM, contains a temporary offset parameter, TempOffset, which provides a negative offset to C32 standard.

0 10 s1 20 s... ...31 320 s

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. Cell reselection in GPRS system follows the C32 standard. C32 standard calculation, similar to C2 standard in GSM, contains a temporary offset, TempOffset, which provides a negative offset. Its effective time depends on PenaltyTime parameter.

0 5 s1 10 s2 15 s3 20 s4 30 s5 60 s6 120 s7 300 s

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. It is not allowed to reselect this cell within T_RESEL period when MS performs a cell reselection and it is abnormally released in a cell, unless there is no other cell for selection. It is not necessary to broadcast this parameter to MS through “PSI3’ message when the time represented by this parameter is default value (5 s).

0 -110 dbm1 -108 dbm... ...63 -48 dbm

Parameter used at MS side. This is an HCS parameter, and is broadcasted to a MS through “PSI3” message of local and neighboring cells. It indicates the threshold value of HCS signal intensity in the cell.

Parameter used at MS side. This is also a HCS parameter, and is broadcasted to a MS through “PSI3” message. It specifies the HCS priority of the cell.

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. It determines whether to use the CellReselHys parameter on C31 standard.

0 0 dB1 2 dB2 4 dB3 6 dB4 8 dB5 10 dB6 12 dB7 14 dB

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. MS needs to go through location updating process after cell reselection in the case of GPRS cell reselection, if the original cell and destination cell are in different locations. C32 values obtained at the boundary for two adjacent cells are generally quite different because of fading characteristic of radio channel. It causes MS to select cell frequently. The interval between the two cell reselections of MS will not be less than 15 s. However, 15 s is extremely short time in terms of location updating. On one hand, it dramatically increases signaling flow on the network and causes radio resources to be fully utilized; on the other hand, it decreases call completion rate of the system, for MS cannot respond to paging during location update. GSM specification sets a specific parameter, Cell Reselecting Hysteresis (CRH), to solve this problem. MS will activate the cell reselection according to this parameter only when the signal level of adjacent cell (whose location zone is different from that of local cell) is greater than that of local cell, and meanwhile the value difference must be greater than that required by the parameter.

0 0 dB1 2 dB2 4 dB3 6 dB4 8 dB5 10 dB6 12 dB7 14 dB

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. It specifies extra hysteresis value used in selecting a cell in another routing area when MS is in STANDBY or READY mode. It is not necessary to broadcast this parameter through the “PSI3” message when the value of this parameter is the same as that of CellReselHys.

0: Using positive ReselectOffset towards all adjacent cells1: Using positive ReselectOffset only towards those with the highest receiving level value

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message. It determines whether to use the exceptional rule when adopting ReselOff.

0 < -1101 -110 ~ -1092 -109 ~ -108... ...61 -50 ~ -4962 -49 ~ -4863 > -48

Parameter used at MS side. This parameter is broadcasted to a MS through “PSI3” message of local cell and “PSI3’ and “PSI3bis” messages of adjacent cells. This parameter indicates allowed minimum receiving level of MS to access GPRS system. GSM system prescribes that receiving level of MS must be higher than a threshold level, that is, minimum receiving level allowed for MS access, when MS is necessary to access the network, to prevent MS from accessing the system in the case of low receiving signal level (communication provided after such access is of bad and unsatisfying quality. Besides, it is a waste of the radio resources of the network). In addition, this prescription is also one of the standards for MS to select and reselect cell (a parameter for C31 and C32 calculation).

0: Not using HCS parameters; 1: Using HCS parameter

0: No; 1: Yes

Value MS Output Power (dBm) GSM900 0~2 39 29 363 37 30 344 35 31 325 33 0 30Value MS Output Power (dBm) GSM1800... ... ... ...17 9 13 418 7 14 219~31 5 15~28 0

Parameter used at MS side. This parameter is broadcasted to MS through “PSI3” message of local cell and “PSI3” and “Psi3bis” messages of the neighboring cells. The transmitting power of MS is controlled by the network when it communicates with BTS. The network sets MS power through the power command, and MS must use the transmitting power specified by the network as its output power. MS outputs capable power closest to specified value if MS under its power level cannot output this power value. MsTxPwrMaxCCH determines the power (used at random access) used before MS receives network power control information when MS receives messages on the PBCCH. This is also a parameter involved in C1 and C2 calculation for MS to select and reselect a cell.

Parameter used at MS side. This is a parameter of Hierarchical Cell Structure (HCS), and is broadcasted to a MS through the “PSI3” message. It indicates whether the HCS parameters (PriorityClass and HCSTHr) exist in the cell. If local cell does not use HCS parameters, the HCS parameters of other cells will also be ignored. That is, all the cells use the infinite HCS signal intensity threshold.

This parameter is broadcasted to a MS through “SI4”, “SI6”, “SI7”, and “PSI3” messages and “PSI3” and “Psi3bis” messages of adjacent cells. It is to specify the LSA identifier of the cell.

Parameter used at MS side. It is broadcasted to a MS through the “PSI3” message, and it is used to indicate whether MS is allowed to attempt to access another cell (if it exists). If abnormal release occurs during the packet transmission, MS will discard all running TBFs. If MS is allowed to access other cells (RadAcRetry = 1), it should perform abnormal cell reselection, and establish TBF after initializing new cell. If other suitable cells exist, MS cannot reselect the original cell within T_RESEL seconds.

0 0 db1 4 db2 8 db3 16 db4 24 db5 32 db6 48 db7 64 db

This parameter is broadcasted to a MS through “SI4”, “SI6” and “SI7” messages. It informs MS of the offset value to be used in LSA reselection between two cells with the same LSA priority.

0 0 dB1 6 dB2 12 dB3 18 dB4 24 dB5 30 dB6 36 dB7 Infinite

This parameter is broadcasted to a MS through the “SI4”, “SI6” and “SI7” messages. It is related to the RXLEV_ACCESS_MIN parameter, and is used for the calculation of C4 standard.

0 0.48 s1 0.96 s2 1.92 s3 3.84 s4 7.68 s5 15.36 s6 30.72 s7 61.44 s(default value)

Parameter used at MS side. This is a parameter of network control survey. It is broadcasted to a MS through “PSI5” message, and is to indicate the period of MS reporting cell reselection survey in packet idle mode. It is not necessary to broadcast this parameter through the “PSI5” message when NetworkCtrlOrder is NC0.

0 0.48 s1 0.96 s2 1.92 s3 3.84.44 s (default value)4 7.68 s5 15.36 s6 30.72 s7 61.44 s

Parameter used at MS side. This is a parameter of Network Control (NC) survey. It is broadcasted to a MS through the “PSI5” message, and is used to indicate the period of MS reporting the cell reselection survey in the packet transmission mode. When NetworkCtrlOrder is NC0, it is not necessary to broadcast this parameter through the “PSI5” message.

Parameter used at MS side. This parameter is broadcasted to a MS through “PSI1” message, and is to indicate the survey report command of MS in a cell.

0 NC0: MS controls the cell reselection; no survey report.1 NC1: MS controls the cell reselection and sends the survey report.2 NC2: The network controls the cell reselection and the MSsends the survey report.3 Reserved and interpreted as NC0.

Parameter used at MS side. This is a parameter of network control survey. It is broadcasted to a MS through “PSI5”, “PSI13” and “SI3” messages, and is to indicate the network control command used in the cell. NC survey parameters (NcNoDrxPer, NcRepPerI and NcRepPerT) can be ignored if this parameter equals to NC0. Take default value if it equals to NC1 or NC2 and NC survey parameters are ignored.

0 No non-DRX mode1 0.24 s2 0.48 s (default value)3 0.72 s4 0.96 s5 1.20 s6 1.44 s7 1.92 s

Parameter used at MS side. This is a parameter of network control survey. It is broadcasted to a MS through the “PSI5” message, and is used to indicate the minimal time for MS to stay in the non-DRX mode after sending an NC survey report. There is no need to broadcast this parameter through “PSI5” message when NetworkCtrlOrder is NC0.

0 EM0: MS performs no extended survey1 EM1: MS must send the extended survey report to the network2 Reserved3 Reserved and interpreted as EM0

Parameter used at MS side. This is a parameter of extended survey. It is broadcasted to a MS through “PSI5” message, and is to indicate whether MS performs extended survey and how to interpret rest extended survey parameters (ExtRepType, NccPermited and ExtRepPer).

0 Type I survey report: This type of report must be extended if the frequency points for the extended survey are among the six strongest carrier frequencies, no matter whether the BSIC decoding is successful. The report should cover the receiving signal level and the successfully decoded BSIC (if any)1 Type II survey report: This type of report must be extended if all the frequency points for the extended survey are located in the six strongest carrier frequencies, the BSIC decoding is successful and the NCC part is allowed for survey. The report should cover the receiving signal level and the successfully decoded BSIC2 Type-III survey report: Use this type of report to report all the frequency points for the extended survey. No BSIC decoding is necessary. The report should contain the receiving signal level. Besides, the interference of each carrier frequency shall be reported3 Reserved

Parameter used at MS side. This is a parameter of extended survey. It is broadcasted to a MS through “PSI5” message, and is to indicate the type of extended survey report sent by the MS. The parameter is valid, and is sent through “PSI5” message when ExtMeaOrder is EM1.

0 60 s1 120 s2 240 s3 480 s4 960 s5 1920 s6 3840 s7 7680 s

Parameter used at MS side. This is a parameter of extended survey. It is broadcasted to a MS through the “PSI5” message, and is used to indicate the interval of the extended survey report. The parameter is valid, and is sent through the “PSI5” message when ExtMeaOrder is EM1.

0 0.0 s1 0.5 s... ...7 3.5 s

Parameter used at MS side. It is a parameter of GPRS cell option, and is broadcasted to a MS through “PSI1”, “PSI13” and “SI13” messages. It indicates maxmium time a MS has to wait for the “PACKET UPLINK ASSIGNMENT” message after it sends the “PACKET RESOURCE REQUEST” message (or when the “PACKET DOWNLINK ACK/NACK” message contains Channel Request Description IE).

see description of N3102 Decrease Step see description of N3102 Decrease Step

0 0.0 s1 0.5 s2 1.0 s... ...7 3.5 s

Parameter used at MS side. During the packet downlink transmission, if RLC data block to be transmitted is the final downlink data block, the network will send an RLC data block with the Final Block Identifier (FBI) domain as 1 and containing an effective RRBP field to initialize the release of the downlink TBF. For each received RLC data block with FBI as 1 and containing an effective RRBP domain: 1) In the acknowledged mode, MS should send the “PACKET DOWNLINK ACK/NACK” message with the FBI domain as 1 on the uplink block specified by the RRBP domain; 2) In the unacknowledged mode, MS should send the “PACKET CONTROL ACK” message on the uplink block specified by the RRBP domain. Then, MS will start the T3192 timer. When T3192 expires, the system will release resources; stop listening to the PDCCH channel, and turns to listen to the paging channel. If a MS receives the “PACKET DOWNLINK ASSIGNMENT” or “PACKET TIMESLOT RECONFIGURE” message from the network within the protection period of the T3192 timer, it will stop T3192 and transfer to the packet transmission status.The time represented by T3192 timer must be less than the protection time of T3193 timer of the downlink TBF at the network side to ensure TFI uniqueness of MS at the same time.

Value Value Represented0 41 82 12... ...7 32

Parameter used at MS side. These are parameters of GPRS cell option. They are broadcasted to a MS through the “PSI1”, “PSI13” and “SI13” messages, indicateing the values PAN_DEC, PAN_INC and PAN_MAX respectively. MS will set initial value of N3102 timer to the PanMax value after each cell reselection. 1) When MS receives the “PACKET UPLINK ACK/NACK” message to move V(S) forward, it adds PanInc to N3102 (but maxmium value shall not exceed PanMax). 2) When MS detects a stalling condition (V(S) = V(A) + WS), it will enable the T3182 timer. When it receives the “PACKET UPLINK ACK/NACK” message that makes V(S) < V(A) + WS, it will stop the T3182 timer. If the T3182 timer expires, MS will subtract PanDec from N3102. When the condition of N3102£0 is satisfied, MS will take the cell reselection as abnormal release.

0 Network Operation Mode I1 Network Operation Mode II2 Network Operation Mode III3 Reserved

GPRS cell option. It is broadcasted to a MS through “PSI1”, “PSI13” and “SI13” messages, and indicates network operation mode in the cell. There are three modes: Mode I: The network sends CS paging message to “GPRS-attached” MS on the same channel as GPRS paging channel (the packet paging channel or CCCH paging channel), or on GPRS service channel (when a packet data channel is assigned to it). This means that MS needs to monitor one paging channel only. Mode II: The network sends CS paging message to “GPRS-attached” MS on CCCH paging channel, which is also used for GPRS paging. This means that MS needs to monitor CCCH paging channel only. CS paging message is still sent on CCCH paging channel when assigned a packet data channel. Mode III: The network sends the paging message to “GPRS-attached” MS on the CCCH paging channel, and sends GPRS paging message either on packet paging channel (if any in the cell) or on CCCH paging channel. This means that MS has to monitor two paging channels (if there is a packet paging channel in the cell) to receive CS or GPRS paging message.NMO for the cells of the same RAC must be the same. If the Gs interface exists, the MSC can send the CS paging message to the “GPRS-attached” MS through SGSN. In this case, only Network Operation

0 0 s1 1 s2 2 s3 4 s... ...7 64 s

Parameter used at MS side. It is a parameter of GPRS cell option. It is broadcasted to a MS through “PSI1”, “PSI13” and “SI13” messages, and indicates the value of DRX_TIMER_MAX. When MS changes from the packet transmission mode to the packet idle mode, it should first enter the non-DRX mode. The time length for MS to stay in the non-DRX mode is determined by minimum values of the parameters NON_DRX_TIMER and DRX_TIMER_MAX.

0 Time length of one block1 Time length of one block... ...15 Time length of 15 blocks

Parameter used at MS side. It is a parameter of GPRS cell option. It is broadcasted to a MS through “PSI1”, “PSI13” and “SI13” messages, and indicates the value of BS_CV_MAX parameter of Max Blocks Transmission in Each TS. This parameter determines the time length of T3198 timer used by MS as sending party (= time represented by BS_CV_MAX), the time length of T3200 used by MS in non-DRX mode (= 4 x time represented by BS_CV_MAX), and the value of N3104max (=3 x (BS_CV_MAX+3) x Number of timeslots assigned in the uplink). All uplink data blocks sent by MS contain the COUNT DOWN VALUE (CV) field. The network can use this field to calculate the data blocks to be sent on current uplink TBF.

0 Default format is four access bursts1 Default format is RLC/MAC block

Parameter used on RLC/MAC layer of BRP and at MS side. This is a parameter of GPRS cell option. It is broadcasted to a MS through “PSI1’, “PSI13” and “SI13” messages, and indicates default format for MS to send “PACKET CONTROL ACKNOWLEDGEMENT” message.

0 Use 8-bit access burst1 Use 11-bit access burst

Parameter used at MS side. This is a parameter of GPRS cell option. It is broadcasted to a MS through the “PSI1”, “PSI13” and “SI13” messages, and indicates whether to use the 8-bit or 11-bit access burst in the PRACH and PTCCH/U, and the “PACKET CONTROL ACKNOWLEDGEMNT” message. No essential difference exists between these two types, except that 11-bit access burst can take a little more content than the 8-bit access burst.

According to the definition in the GSM specification, the cell selection and reselection of MS are determined by the C1 and C2 parameters. Whether to use C2 as the cell reselection parameter is determined by the network operator. AdditionReselPI (Additional Reselect Param Ind, ACS) is used to notify MS whether to use C2 during the cell reselection. This parameter is broadcasted to MSs in the cell through the “RIL3_RR SYSTEM INFORMATION TYPE3” and “TYPE4” messages. It is one of the cell selection parameters.Value range: 0: If rest octets exist in the “SYSTEM INFORMATION TYPE4” message (SI4 Rest Octets), MS should obtain from the rest octets the PI parameter related to the cell reselection and parameters related to the C2 calculation; 1: MS should obtain the PI parameter related to the cell reselection and parameters related to the C2 calculation from the rest octets of the “SYSTEM INFORMATION TYPE7” messageGenerally, the system messages 7 and 8 are seldomly used. AdditionReselPI must be set to 0. Otherwise, some MSs (for example, NEC) will not be able to access the network.

0 ~ 7

0 ~ 255

False: Sending on BCCH Norm True: Sending on BCCH Ext

Parameter used at MS side. This parameter is broadcasted to a MS through the “SI3”, “SI4”, “SI7” and “SI8” messages and the “PSI3” message of adjacent cells. It indicates the scheduling position of SI13 on BCCH. The system message 13 is only related to the GPRS services. It can either be sent on the BCCH Norm position (In this case, it occupies the BCCH block with TC = 4; TC = (FN DIV 51) mod (8)), or on the BCCH Ext position (In this case, it occupies one fixed AGCH block with TC = 0). SI13 is sent with low success rate on the BCCH Ext position, because it has to compete with other messages (such as, the “Immediately assign” message) for delivery opportunity. In this case, the parameter value of Access Allowed Reserved Blocks (BsAgBlkRes in the R_BTS table) must be set higher than 0. Otherwise, SI13 will have no chance to be sent.

Parameter used at MS side. It is broadcasted to a MS through the “SI3”, “SI4”, “SI7” and “SI8” messages. Similar to the BCC function in the GSM system, in some cases (for example, the inter-BSC cell reselection), the GPRS network will assign different RaColor values to adjacent cells with the same route area code to ensure that MS can initiate the “Routing Area Updating” process. In this way, when MS receives different RaColor values in the cells with the same routing area code, it will initiate the “Routing Area Updating” process, just like when it spans two different routing areas.

0 The cell does not allow package access1 Not use; shall be interpreted as that the cell does not allow package access2 Not use; shall be interpreted as that the cell does not allow package access3 Allow the package access with priority as 14 Allow the package access with priorities as 1 ~ 25 Allow the package access with priorities as 1 ~ 36 Allow the package access with priorities as 1 ~ 47 The cell allows package access

Parameter used at MS side. It is broadcasted to a MS through the “PSI13” and “SI13” messages. It indicates the priority level of MS packet access allowed by the cell. Its function is similar as that of ACCESS CLASS.

Parameter used by DBS on Pn. It indicates minimum threshold of the number of idle channels under the CS status when the network converts from the PS + CS channel to the PS channel. If the number of idle CS channels is lower than the threshold, it is not allowed to convert a dynamic PS + CS channel into a PS channel.

0 ~ 16

0 Not sent at high rates1 Allow to be sent at high rates

Parameter used for global process on BRP. It indicates whether various types of PSI messages is sent in high rate. There are limited packet system messages (16) sent at high rate, and the number of sent messages of each type varies depending on the length of the message. Therefore, the user can only set rough requirements for the sending rate of each type of system message. Before sending the message, the global process will dynamically specify the sending rate of each type of packet system message according to the user requirement (analyze step by step according to the array subscripts 0 ~ 5 of SendSpeed) and the system limitation. The corresponding relationship between the array subscript and the packet system is stated as follows: 0:PSI2, 1:PSI3, 2:PSI3BIS, 3:PSI4, 4:PSI5, 5:PSI13.

False: CCCH of the cell does not support SPLIT_PG_CYCLETrue: CCCH of the cell supports SPLIT_PG_CYCLE.

Parameter used at MS side and FUN side. It is broadcasted to a MS through the “PSI13” and “SI13” messages, and indicates whether to support the “SplitPgCycle” function on CCCH. ”SplitPgCycle” means to send the “PACKET IMMEDIATE ASSIGNMENT”, “PACKET PAGING” and “PACKET IMMEDIATE ASSIGNMENT REJECT” messages on multiple BLOCKs.

0 The PSI1 repeat period is 1 multiframe1 The PSI1 repeat period is 2 multiframes... ...15 The PSI1 repeat period is 16 multiframes

Parameter used at MS side and FUN side. It is broadcasted to a MS through the “PSI1” message, and the “PSI13” and “SI3” messages of local and adjacent cells. It indicates the sending period and destination of the “PSI1” message in a cell. PSI1 contains information about cell reselection, PRACH control, control channel description, and possible global power control parameters. As long as the PBCCH exists, the message is always sent at high repetition rate.

0 The network does not support the PACKET PSI STATUS message1 The network supports the PACKET PSI STATUS message

Parameter used at MS side and on BRP. It is broadcasted to a MS through the “PSI1” message, and indicates whether the network supports “PACKET PSI STATUS” message. This function is optional. When PsiStaInd equals 1, MS can send the “PACKET PSI STATUS” message to the network and indicate the current value of the PSI message stored on it. And then the network can set the required PSI message for this MS on the PACCH to speed up the subsequent flow of MS. Otherwise, MS can listen to the PSI message only at the time points scheduled by the network.

This parameter is used by BRP. It indicates the load calculation period of PPCH

0 ~ 255 PRACH OverLoad Report Period0 ~ 100 Initial value of the link error counter0 ~ 100 Threshold of overloaded PRACH power level

False: The cell supports extended paging modeTrue: The cell does not support extended paging mode

This parameter indicates whether the cell supports the extended paging mode.

0 PBCCH occupies one block in the multiframe1 PBCCH occupies two blocks in the multiframe2 PBCCH occupies three blocks in the multiframe3 PBCCH occupies four blocks in the multiframe

Parameter used at MS side. This is a parameter of PCCCH structure. It is broadcasted to a MS through the “PSI1” message. It indicates the number of blocks assigned as PBCCH in a 52 multiframes (all together 12 blocks). PBCCH blocks are shared by the packet system messages sent at high and low rates. A message sent at high rate has higher priority. This parameter must be configured together with the PSI1_REPEAT_PERIOD parameter in the “PSI1” message to ensure that block resources are available for the packet system messages sent both at high and low rates.

0 The number of blocks reserved for PAGCH, PDTCH and PACCH is 01 The number of blocks reserved for PAGCH, PDTCH and PACCH is 1... ...12 The number of blocks reserved for PAGCH, PDTCH and PACCH is 1213~15 Same as 0

Parameter used at MS side. This is a parameter of PCCCH organization. It is broadcasted to a MS through the “PSI1” message. This parameter indicates the number of blocks in a 52-frame multiframe that allow neither packet paging nor PBCCH. Only PAGCH, PDTCH and PACCH can appear on these blocks. The uplink assignment message will be sent with priority on these fixed blocks to speed up the establishment of the uplink TBF. After sending the channel request on the PRACH channel, MS will wait for the uplink assignment message on all PCCCH channels of the same timeslot as the PRACH channel.

0 The number of fixed blocks reserved for the PRACH channel is 01 The number of fixed blocks reserved for the PRACH channel is 1... ...12 The number of fixed blocks reserved for the PRACH channel is 1213~15 Same as 0

Parameter used at MS side. This is a parameter of PCCCH organization. It is broadcasted to a MS through the “PSI1” message. This parameter indicates the number of fixed blocks reserved for the PRACH channel in the PDCH channel that bears PCCCH. These blocks must be identified with USF = FREE. MS can use this parameter or USF = FREE to carry out the PRACH assignment.

0 One attempt allowed1 Two attempts allowed2 Four attempts allowed3 Seven attempts allowed

Parameter used at MS side. This is a parameter of PRACH control. It is broadcasted to a MS through the “PSI1” message. It indicates maxmium attempts of random access allowed on PRACH for MS with radio priorities of 1 ~ 4.Value range: This parameter is an array with 4 elements. The first array element corresponds to maxmium attempt times allowed for radio priority 1, and analyze the following like this.

N/A

0 Persisting level 01 Persisting level 1... ...14 Persisting level 1415 Persisting level 15

Parameter used at MS side. This is a parameter of PRACH control. It is broadcasted to a MS through the “PSI1” message. The network sets a level threshold P i (i=1, 2, 3, 4) for MS of various radio priorities. For each attempt of packet access, MS will abstract a random value R with even distribution probability from the set {0, 1, ..., 15}. MS is allowed to initiate an attempt of packet access only when P i is lower than or equal to R.

0 The number of the extended TS is 21 The number of the extended TS is 32 The number of the extended TS is 43 The number of the extended TS is 54 The number of the extended TS is 65 The number of the extended TS is 76 The number of the extended TS is 87 The number of the extended TS is 98 The number of the extended TS is 109 The number of the extended TS is 1210 The number of the extended TS is 1411 The number of the extended TS is 1612 The number of the extended TS is 2013 The number of the extended TS is 2514 The number of the extended TS is 3215 The number of the extended TS is 50

Parameter used at MS side. This is a parameter of PRACH control. It is broadcasted to a MS through the “PSI1” message. Whenever establishing a new connection, MS will send a channel request message to the network through the PRACH channel. As PRACH is an ALOHA channel, to improve the success rate of MS access, the network allows MS to send multiple channel request messages before it receives the packet assignment message. If MS does not get any response for the previous channel request message, it can resend a channel request message after waiting for a random period of time. The TxInt parameter is just used to determine the time length of random waiting.

0 S=12 s=121 S=15 s=152 S=20 s=203 S=30 s=304 S=41 s=415 S=55 s=556 S=76 s=767 S=109 s=1098 S=163 s=1639 S=217 s=21710~15 Reserved

Parameter used at MS side. This is a parameter of PRACH control. It is broadcasted to a MS through the “PSI1” message. Whenever establishing a new connection, MS will send a channel request message to the network through the PRACH channel. As PRACH is an ALOHA channel, to improve the success rate of MS access, the network allows MS to send multiple channel request messages before it receives the packet assignment message. If MS does not receive any response for the previous channel request message, it can resend a channel request message after waiting for a random period of time. The parameter S is used to determine the time length of random waiting.

True: Enabling to release PDCH channel immediatelyFalse: Disabling to release PDCH channel immediately

16 bits

Allow visiting MS access control class of MS: ACC_CONTR_CALSS. All MS in GSM system have an access class (15 classes in all). MS with class 0 ~ 9 are common MS and with class 11 ~ 15 are special MS (class 10 doesn't exist). The system can prohibit some MS with some access class to enter the cell according to the parameter. It allows access of a mobile console with access class = N if N digit of access control class is 0, N=0, 1, … 9, 11, … 15. It allows emergent calls when 11 digit = EC.

0 α = 0.01 α = 0.1... ...10 α = 1.011~15 α = 1.0

Parameter used at MS side. This is a parameter of global power control and GPRS power control. It is broadcasted to a MS through “PSI1”, “PSI13” and “SI13” messages. This parameter determines the parameter Alpha (α) of MS transmission power control.

0 The filter period is 2(0/2)/6 multiframes1 The filter period is 2(1/2)/6 multiframes... ...25 The filter period is 2(25/2)/6 multiframes26~31 The filter period is 2(25/2)/6 multiframes

Parameter used at MS side. This is a parameter of global power control and GPRS power control. It is broadcasted to a MS through the “PSI1”, “PSI13” and “SI13” messages. This parameter indicates the filter period of the signal intensity for power control in the packet idle mode.

0 The filter period is 2(0/2)/6 multiframes1 The filter period is 2(1/2)/6 multiframes... ...25 The filter period is 2(25/2)/6 multiframes26~31 Reserved

Parameter used at MS side. This is a parameter of global power control and GPRS power control. It is broadcasted to a MS through the “PSI1”, “PSI13” and “SI3” messages. This parameter indicates the filter period of signal intensity for power control in the packet transmission mode.

0 Pb = 0dB1 Pb = -2dB... ...15 Pb = -30dB

Parameter used at MS side. This is a parameter of global power control and a PBCCH descriptive parameter. It is broadcasted to a MS through the “PSI1”, “PSI13” and “SI13” messages. This parameter indicates the decreasing value (compared with the output power of BCCH) of the power used on the PBCCH block.Pb must be 0 when PBCCH is on BCCH carrier frequency.

0 Downlink survey shall be carried out on BCCH for the purpose of power control1 Downlink survey shall be carried out on PDCH for the purpose of power control

Parameter used at MS side. This is a parameter of global power control and GPRS power control. It is broadcasted to a MS through “PSI1”, “PSI13” and “SI13” messages. It indicates where downlink power strength is to be surveyed for uplink power control.

0 ~ 31

0: Not broadcasting PSI4 message1: Broadcasting PSI4 message

Parameter used at MS side, that is INT_MEAS_CHANNEL_LIST_AVAIL. This is a parameter of global power control. It is broadcasted to a MS through the “PSI1” message. This parameter indicates whether to broadcast the optional “PSI4” message. This message contains a list of channels that will interfere with the survey.

0 Filter constant 2(0/2)1 Filter constant 2(1/2)... ...15 Filter constant 2(15/2)

Parameter used at MS side. This is a parameter of global power control and GPRS power control. It is broadcasted to MS through the “PSI1”, “PSI13’ and “SI13” messages. This parameter is a filter constant used for interference signal intensity in power control.

0 No control1 Open loop control2 Closed loop control3 Quality-based controlOthers Reserved

This parameter determines uplink power control strategy of GPRS.

0 No control1 Open loop control2 Closed loop control3 Quality-based controlOthers Reserved

This parameter determines downlink power control strategy of GPRS.

0 A1 B

The downlink power control mode adopted at the BTS side. Two power control modes are available for BTS: A and B. Mode A can be used for any assignment mode, while Mode B can only be used for the fixed assignment mode. The parameter BTS_PWR_CTRL_MODE determines which power control mode to be used.

0 P0=0dB1 P0=2dB... ...15 P0=30dB

An optional parameter of downlink power control; contained in assignment message. Use power control if P0 exists; otherwise, do not use it. In packet transmission mode, do not change P0 value unless re-assignment or new assignment is established, and assignment does not contain PDCH(s) of any previous assignment.

This parameter determines power control precision of GPRS.

0 -110dBm1 -109 dBm... ...63 -47 dBm

This parameter is used for uplink power control of open loop.

Paktel Comment Comments

Related Parameters/ further comments

Just need to be uniqe within the LA. Intinially there wont be any need to have more than 1 RA per LA and therefore all RAC can be set to 1

but open loop papameters needs to be set