Bss Timers (Feb 12)

32
Date Author 12-Feb-05 Alan C.

Transcript of Bss Timers (Feb 12)

Page 1: Bss Timers (Feb 12)

Date Author

12-Feb-05 Alan C.

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Comments

All values were taken from OSS on Feb 12, 2005.

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Timer and parameter lists

Timers

1. T4 Supervision of sending the RESET to the MSC

Interpretation: The timer T4 supervises the sending of the RESET message from the BSC to the MSC.

Timer start condition: The timer T4 starts automatically when a BSC reset occurs.

Timer stop condition: The timer T4 stops when a RESET_ACK message has been received from the MSC.

Action performed on timer expiry: When the timer T4 expires, the BSC repeats the whole procedure.

Appropriate value:

Min. = 10 s.Max. = 120 s.Def. = 60 s.Rule = -

Signalling diagram:

Figure: BSC reset

Figure: T4 timer expiry

2. T7 Frequency of the HANDOVER_REQUIRED message

Timer start condition: The timer T7 starts when the BSC sends the HANDOVER_REQUIRED message to the MSC.

Action performed on timer expiry: When the timer T7 expires, the HANDOVER_REQUIRED procedure is repeated immediately, if the conditions for performing the external handover are still fulfilled.Appropriate value:

Min. = 5 s.Max. = 30 s.Def. = 20 s.Rule = -

Signalling diagram:

Interpretation: The timer T7 supervises the frequency of the HANDOVER_REQUIRED message. Also the timer MinIntBetweenUnsuccHoAttempt(in BSDATA) supervises the frequency of the HANDOVER_REQUIRED message. MinIntBetweenUnsuccHoAttempt is the minimum interval between an unsuccesful handover attempt and the following handover attempt related to the same connection.

Timer stop condition: The timer T7 stops when the HANDOVER_COMMAND or the HANDOVER_REQUIRED_REJECT message has been received from the MSC. When HANDOVER_REQUIRED_REJECT message is received from the MSC the BSC may send the following HANDOVER_REQUIRED message to the MSC, however, it can send the message only after the timer MinIntBetweenUnsuccHoAttempt has expired.

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Figure: T7 timer activation

Figure: T7 timer expiry

3. T8 Handover procedure supervision in the source BSCInterpretation: The timer T8 supervises the external handover procedure in the serving BSC.Timer start condition: The timer T8 starts when a HANDOVER_COMMAND message is received from the MSC (i.e. in the case of an external handover).Timer stop condition: The timer T8 stops when a CLEAR_COMMAND message (in the case of external handover) has been received from the MSC. It also stops when a HANDOVER_FAILURE message is received from the MS (i.e. in the case of any handover failure).Action performed on timer expiry: When the timer T8 expires, the BSC sends a CLEAR_REQUEST message to the MSC.Appropriate value:

Min. = 8 s.Max. = 15 s.Def. = 12 s.Rule = -

Signalling diagram:

Figure: Successful handover with T8 timer activation

Figure: Unsuccessful handover

Figure: T8 timer expiry

4. T10 Supervision of the assignment procedureInterpretation: The timer T10 supervises the assignment procedure.Timer start condition: The timer T10 starts before the BSC sends a PHYSICAL_CONTEXT_REQUEST message to the BTS.Timer stop condition: The timer T10 stops when the MS sends either an ASSIGNMENT_COMPLETE or an ASSIGNMENT_FAILURE message to the BSC.Action performed on timer expiry: When the timer T10 expires, the BSC sends an ASSIGNMENT_FAILURE message to the MSC.

Appropriate value:

Min. = 4 s.Max. = 14 s.Def. = 8 s.Rule = T10 > T3103, T10 > T3107

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NOTE: It is recommended that T10 be at least 2 seconds longer than T3107.

Signalling diagram:

Figure: T10 timer activation

5. T13 RESET guard periodInterpretation: The timer T13 serves as a guard period for a local call clearing procedure.Timer start condition: The timer T13 starts when a RESET message has been received from the MSC.Timer stop condition: The timer T13 stops when an SSP/SPI (subsystem prohibited/signalling point inhibited) message is received from the SCCP.Action performed on timer expiry: When the timer T13 expires, a reset acknowledgement message is sent to the MSC.Appropriate value:

Min. = 5 s.Max. = 30 s.Def. = 15 s.Rule = -

Signalling diagram:

Figure: T13 timer activation

6. T17 Overload procedureInterpretation: The timer T17 supervises the overload procedure in MSC overload.

Timer stop condition: None.Action performed on timer expiry: When the timer T17 expires, the BSC takes new OVERLOAD messages into account.

Appropriate value:

Min. = 1 s.Max. = 120 s.Def. = 4 s.Rule = T17<T18

This timer is started with T18, and must expire before T18 expires.

Signalling diagram:

Figure: T17 timer activation

Timer start condition: The timer T17 starts when an OVERLOAD message is received from the MSC. For a detailed description see GSM 08.08, MSC-BSS Interface, Layer 3 Specification .

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Figure: T17 timer expiry

7. T18 Overload procedure

Timer start condition: The timer T18 starts when an OVERLOAD message is received from the MSC. The traffic is reduced by one step. This step reduction involves barring of one mobile access class.Timer stop condition: None.Action performed on timer expiry: When the timer T18 expires, the traffic is increased on the next level.

Appropriate value:

Min. = 3 s.Max. = 180 s.Def. = 12 s.Rule = T18>T17

This timer is started with T17, and must expire after T17 expires.

Signalling diagram:

Figure: T18 timer activation

Figure: T18 timer expiry

8. T3101 Supervision of the immediate assignment procedureInterpretation: The timer T3101 supervises the immediate assignment procedure.Timer start condition: The timer T3101 starts when the BSC sends an IMMEDIATE_ASSIGNMENT_CMD message to the BTS.Timer stop condition: The timer T3101 stops when an ESTABLISH_IND message is received from the MS.Action performed on timer expiry: When the timer T3101 expires, the BSC sends an RF_CHANNEL_REL message to the BTS.Appropriate value:

Min. = 1 s.Max. = 5 s.Def. = 3 s.Rule = -

Signalling diagram:

Interpretation: The timer T18 supervises the overload procedure. For a detailed description see GSM 08.08, MSC-BSS Interface, Layer 3 Specification .

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Figure: T3101 timer activation

Figure: T3101 timer expiry

9. T3103 Supervision of the internal handover procedureInterpretation: The timer T3103 supervises the internal handover procedure.Timer start condition: The timer T3103 starts when the BSC sends a HANDOVER_CMD message is sent to the MS (via a BTS).Timer stop condition: The timer T3103 stops when the BSC receives either a HANDOVER_CMPL message on the new channel or HANDOVER_FAILURE message on the old channel from the MS.Action performed on timer expiry: When the timer T3103 expires, a CLEAR_REQ message is sent to the MSC and the new channel is released.Appropriate value:

Min. = 3,5 s.Max. = 10 s.Def. = 6 s.Rule = T3103 < T10

Signalling diagram:

Figure: Successful handover with T3103 timer activation

Figure: Unsuccessful handover

Figure: T3103 timer expiry

10. T3105_d Repetition of the PHYSICAL INFORMATION (SDCCH)Interpretation: Time out of the timer T3105 repeats the PHYSICAL_INFORMATION message during asynchronous handover on SDCCH.Timer start condition: When network sends the PHYSICAL_INFORMATION message, timer T3105 is set.Timer stop condition: If the network receives a correctly decoded layer 2 frame or the HANDOVER_FAILURE message, it stops timer T3105_d.Action performed on timer expiry: When the timer T3105_d expires, the sending of the PHYSICAL_INFORMATION message is repeated.Appropriate value:

Def. = 280 ms (non-modifiable)

Signalling diagram:

Figure: T3105_d timer activation

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Figure: T3105_d timer expiry

11. T3105_f Repetition of the PHYSICAL INFORMATION (TCH)Interpretation: Time out of the timer T3105 repeats the PHYSICAL_INFORMATION message during asynchronous handover on TCH.Timer start condition: When network sends the PHYSICAL_INFORMATION message, timer T3105 is set.Timer stop condition: If the network receivs a correctly decoded TCH frame from the mobile station or the HANDOVER_FAILURE message, it stops timer T3105_f.Action performed on timer expiry: When the timer T3105_f expires, the sending of the PHYSICAL_INFORMATION message is repeated.Appropriate value:

Def. = 100 ms (non-modifiable)

Signalling diagram:

Figure: T3105_f timer activation

Figure: T3105_f timer expiry

12. T3107 Supervision of the assignment procedureInterpretation: The timer T3107 supervises the assignment procedure and the internal intracell handover.Timer start condition: The timer T3107 starts when the BSC sends an ASSIGNMENT_CMD message to the MS (via a BTS).Timer stop condition: The timer T3107 stops when the BSC receives either an ASSIGNMENT_CMPL or ASSIGNMENT_FAILURE message from the MS.

Appropriate value:

Min. = 3.5 s.Max. = 10 s.Def. = 6 s.Rule = T3107 < T10

NOTE: It is recommended that T10 be at least 2 seconds longer than T3107.

Signalling diagram:

Figure: Successful assignment with T3107 timer activation

Action performed on timer expiry: When the timer T3107 expires, the new and the old channel are released, all the appropriate MS connections are cleared, and an ASSIGNMENT_FAILURE message is sent to the MSC. In the case of the internal intracell handover, a CLEAR_REQUEST message is sent to the MSC.

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Figure: Unsuccessful assignment

Figure: T3107 timer expiry

13. T3109 Supervision of the channel release procedureInterpretation: The timer T3109 supervises the channel release procedure.Timer start condition: The timer T3109 starts when the BSC sends a CHANNEL_REL message to the MS (via a BTS).Timer stop condition: The timer T3109 stops when the BTS sends a RELEASE_INDICATION message. This is done after the BTS has received a DISC-frame from the MS.Action performed on timer expiry: When the timer T3109 expires, the BSC sends an RF_CHANNEL_REL message to the BTS.Appropriate value:

Min. = 8 s.Max. = 15 s.Def. = 12 s.Rule = -

Signalling diagram:

Figure: T3109 timer activation

Figure: T3109 timer expiry

14. T3111 Delay of channel deactivationInterpretation: The timer T3111 delays the channel deactivation after disconnection of the main signalling link. Its purpose is to let some time for possible repetition of the disconnection.

Timer stop condition: The timer T3111 always expires.Action performed on timer expiry: When the timer T3111 expires, an RF_CHANNEL_REL message is sent to the BTS.Appropriate value:

Def. = 0,5 s (non-modifiable)

Signalling diagram:

Timer start condition: The timer T3111 starts when the BSC receives the RELEASE_INDICATION message from the MS if there is no need to release the A interface connection. If the A interface connection has to be released after the RELEASE_INDICATION message has been received, the timer T3111 starts when the BSC receives the CLEAR_COMMAND message from the MSC.

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Figure: T3111 timer activation (No A interface release)

Figure: T3111 timer activation (With A interface release)

Figure: T3111 timer expiry

15. T3121 GSM to WCDMA RAN handover procedure supervision in the source BSCInterpretation: The timer T3121 supervises the external handover procedure from GMS to WCDMA RAN in the serving BSC.Timer start condition: The timer T3121 starts when a HANDOVER_COMMAND message is received from the MSC.Timer stop condition: The timer T3121 stops when a CLEAR_COMMAND message has been received from the MSC. It also stops when a HANDOVER_FAILURE message is received from the MS.Action performed on timer expiry: When the timer T3121 expires, the BSC sends a CLEAR_REQUEST message to the MSC.Appropriate value:

Min. = 8 s.Max. = 15 s.Def. = 12 s.Rule = -

Signalling diagrams:

Figure: Successful handover with T3121 timer activation

Figure: Unsuccessful handover

Figure: T3121 timer expiry

16. T3122 Delay of sending another channel request messageInterpretation: The timer T3122 delays the sending of another channel request.Timer start condition: The timer T3122 starts when the MS receives an IMMEDIATE_ASSIGNMENT_REJECT message from the BTS.Timer stop condition: The timer T3122 stops when the MS makes a reselection for another cell.Action performed on timer expiry: When the timer T3122 expires, the MS sends a new CHANNEL_REQUEST message.Appropriate value:

Min. = 2 s.Max. = 10 s.

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Def. = 6 s.Rule = -

Signalling diagram:

Figure: T3122 timer activation

17. T3168 Wait for Packet Uplink Assignment messageInterpretation: The timer T3168 is used on the mobile station side to define when to stop waiting for a Packet Uplink Assignment message after sending of a Packet Resource request message. The unit is 500ms (0=500ms, 1=1s, 2=1.5s, etc.).Appropriate value:

Min: 0Max: 7Def: 1Rule = -

Note

After a modification to this timer it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

18. T3192 Wait for release of the TBF after reception of the final block

Appropriate value:

Min: 0Max: 2Def: 0Rule = -

Note

After a modification to this timer it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

19. T9101 Supervision of the SCCP connection releaseInterpretation: The timer T9101 supervises the reception of the SCCP_RELEASED (RLSD) message.Timer start condition: The timer T9101 starts when the BSC sends the CLEAR_COMPLETE message to the MSC.Timer stop condition: The timer T9101 stops when the RLSD message has been received from the MSC.Action performed on timer expiry: When the timer T9101 expires, the BSC releases the SCCP connection by sending the RLSD message.Appropriate value:

Interpretation: The timer T3192 is used on the mobile station side when the mobile station has received all of the RLC data blocks. When timer T3192 expires the mobile station shall release the resources associated with the TBF (for example TFI) and begin to monitor its paging channel. The unit is 500ms (0=500ms, 1=1s, 2=1.5s, etc.).

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Def. = 10 s. (non-modifiable)

Signalling diagram:

Figure: T9101 timer activation

Figure: T9101 timer expiry

20. T9103 Supervision of the channel activation procedureInterpretation: The timer T9103 supervises the channel activation procedure.Timer start condition: The timer T9103 starts when the BSC sends the CHANNEL_ACTIVATION message to the BTS.Timer stop condition: The timer T9103 stops when the CHANNEL_ACTIVATION_ACK or the CHANNEL_ACTIVATION_NACK message has been received from the BTS.Action performed on timer expiry: When the timer T9103 expires, an RF_CHANNEL_REL message is sent to the BTS.Appropriate value:

Def. = 2 s. (non-modifiable)

Signalling diagram:

Figure: T9103 timer activation

Figure: T9103 timer expiry

21. T9104 Supervision of the clear command from the MSCInterpretation: The timer T9104 supervises the clear command that comes from the MSC.Timer start condition: The timer T9104 starts when the BSC sends a CLEAR_CMD message to the MSC.Timer stop condition: The timer T9104 stops when the BSC receives a CLEAR_CMD message from the MSC.Action performed on timer expiry: When the timer T9104 expires, the CLEAR_REQ message is repeated a maximum of four times.Appropriate value:

Min. = 5 s.Max. = 20 s.Def. = 15 s.Rule = -

Signalling diagram:

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Figure: T9104 timer activation

Figure: T9104 timer expiry

22. T9105 Supervision of the SCCP connection procedureInterpretation: The timer T9105 supervises the SCCP connection procedure.Timer start condition: The timer T9105 starts when the BSC sends an SCCP_CONNECTION_REQ message to the MSC.Timer stop condition: The timer T9105 stops when the BSC receives either an SCCP_CONNECTION_CONFIRM or SCCP_CONNECTION_REFUSED message from the MSC.Action performed on timer expiry: When the timer T9105 expires, the BSC sends a CHANNEL_REL message to the MS (via a BTS).Appropriate value:

Min. = 2 s.Max. = 240 s.Def. = 10 s.Rule = -

Signalling diagram:

Figure: T9105 timer activation

Figure: T9105 timer expiry

23. T9108 Supervision of the physical context request procedureInterpretation: The timer T9108 supervises the physical context request procedure.Timer start condition: The timer T9108 starts when the BSC sends the PHYSICAL_CONTEXT_REQUEST message to the BTS.Timer stop condition: The timer T9108 stops when the PHYSICAL_CONTEXT_CONFIRM message has been received from the BTS.Action performed on timer expiry: When the timer T9108 expires, an ASSIGNMENT_FAILURE message is sent to the MSC.Appropriate value:

Def. = 2 s. (non-modifiable)

Signalling diagram:

Figure: T9108 timer activation

Figure: T9108 timer expiry

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24. T9113 Supervision of the external handover procedure in the target BSCInterpretation: The timer T9113 supervises the external handover in the target BSC.Timer start condition: The timer T9113 starts when the BSC sends a HANDOVER_REQUEST_ACK message to the MSC.Timer stop condition: The timer T9113 stops either when the MS sends a HANDOVER_CMP message or the MSC sends a CLEAR_CMD message.Action performed on timer expiry: When the timer T9113 expires, the BSC sends a CLEAR_REQUEST message to the MSC.Appropriate value:

Min. = 8 s.Max. = 15 s.Def. = 13 s.Rule = -

Signalling diagram:

Figure: T9113 timer activation

Figure: T9113 timer activation with a CLEAR_CMD message from the MSC

BSC Parameters

CELL IDENTIFIER

Interpretation: This parameter identifies the coding of the cell identifier used in the following messages: ASSIGNMENT_COMPLETE, HANDOVER_REQUIRED, HANDOVER_CANDIDATE_RESPONSE, RESOURCE_INDICATION, HANDOVER_PERFORMED, OVERLOAD.

Appropriate value:

CGI 0LAC+CI 1CI 2LAI 3LAC 4Def. = 1

BLOCK MSG INCOMING GLOBAL RESET

Interpretation: This parameter defines whether the blocking status of the A interface circuits is sent to the MSC when the BSC receives a RESET message. If the parameter value is yes, the MSC is informed of the blocking state of the A interface circuits. If the value is no, blocking messages are not sent.

Appropriate value:

Value= yes/noDef. = yesRule = -

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Signalling diagram:

Figure: MSC global reset

BLOCK MSG OUTGOING GLOBAL RESET

Interpretation: This parameter defines whether the blocking status of the A interface circuits is sent to the MSC after the BSC has sent a RESET message. If the parameter value is yes, blocking messages are sent to the MSC.

Appropriate value:

Value= yes/noDef. = yesRule = -

Signalling diagram:

Figure: BSC global reset followed by blocking

UNBLOCK MSG IN GLOBAL RESET

Interpretation: This parameter defines whether the unblocking status of the A interface circuit is sent to the MSC if blocking is removed during the SSP (subsystem prohibited) state. If the parameter value is yes, unblocking messages are sent to the MSC. If the value is no unblocking messages are not sent.

Appropriate value:

Value= yes/noDef. = noRule = -

Signalling diagram:

Figure: BSC global reset followed by unblocking

SEND SYS INFO GLOBAL RESET

Interpretation: This parameter chooses whether the MS access in the Air interface is restricted or not in the case of a global reset procedure.

Appropriate value:

Value= yes/noDef. = yesRule = -

Signalling diagram:

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Figure: MSC global reset

CELL BARRING INCOMING GLOBAL RESET

Interpretation: This parameter informs the MS about cell barring when a RESET message is received from the MSC. If the parameter value is yes, then cell barring information is sent to the MS. If the value is no, no cell barring information is sent.

Appropriate value:

Value= yes/noDef. = noRule = -

Signalling diagram:

Figure: MSC global reset

ALLOW SENDING OF CONFUSION MESSAGES

Interpretation: This parameter allows or prevents the sending of CONFUSION messages on the A interface.

Appropriate value:

Value= yes/noDef. = noRule = -

ALLOW CIRCUIT GROUP MESSAGES

Interpretation: This parameter allows or prevents the sending of CIRCUIT_GROUP_BLOCK and CIRCUIT_GROUP_UNBLOCK messages on the A interface.

Appropriate value:

Value= yes/noDef. = noRule = -

ALARM LIMIT FOR UNAVAILABLE A-IF CIRCUITS

Interpretation: This parameter sets a limit for unavailable A interface circuits. If the number of unavailable A interface speech circuits exeeds this limit, an alarm is set.

Appropriate value:

Min. = 0 %Max. = 100 %Def. = 100 %

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Rule = -

ALARM DELAY FOR UNAVAILABLE A-IF CIRCUITS

Interpretation: This parameter defines the time during which the alarm conditions must be fulfilled before the alarm is set.

Appropriate value:

Min. = 0 sMax. = 300 sDef. = 60 sRule = -

ALARM LIMIT FOR SUCCESSIVE REMOTE TC FAIL

Interpretation: This parameter defines an alarm limit for successive remote transcoder failures. If the number of successive failed call attempts on a given A interface circuit caused by a remote transcoder failure exeeds this limit, an alarm is set.

Appropriate value:

Min. = 1Max. = 5Def. = 3Rule = -

ALLOW SENDING OF UNEQUIPPED_CIRCUIT MESSAGES

Interpretation: This parameter allows or prevents the sending of UNEQUIPPED_CIRCUIT messages on the A interface.

Appropriate value:

Value= yes/noDef. = noRule = -

ALLOW SENDING OF TA VALUE TO MSC

Interpretation: This parameter defines if the BSC sends the Timing Advance (TA) value to the MSC or not and how it is sent. On value zero the TA value is not sent. On value one the TA is sent in Nokia's MSC format and on value two the TA is sent in Ericsson's MSC format.

Appropriate value:

Min. = 0Max. = 2Def. = 0Rule = -

PREFERENCE PROCEDURE IN CONFLICT SITUATION

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Interpretation: This parameter is used to change the preference if the HO_Required message sent by the BSC and the assignment_request message sent by the MSC conflict.

Appropriate value:

Value= T/FDef. = TRule = -

BS_CV_MAX

Note

After a modification to this parameter it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

Appropriate value:

Min. = 0Max. = 15Def. = 6Rule = -

DECREMENT VALUE FOR COUNTER N3102

Note

After a modification to PAN_DEC, PAN_INC or PAN_MAX it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

Appropriate value:

Min. = 0Max. = 15Def. = 1Rule = -

INCREMENT VALUE FOR COUNTER N3102

Note

After a modification to PAN_DEC, PAN_INC or PAN_MAX it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

Interpretation: This parameter is used to determine the duration for timers T3198 and T3200 and maximum value for counter N3104. See GSM 04.60, Radio Link Control/Medium Access Control (RLC/MAC) protocol (GPRS) .

Interpretation: Whenever the mobile station receives a PACKET UPLINK ACK/NACK message, the mobile station shall increment N3102 by PAN_INC; however N3102 shall never exceed the value PAN_MAX. Upon cell reselection the mobile station shall set counter N3102 to the value PAN_MAX. When N3102 =< 0 is reached, the mobile station shall perform an abnormal release with cell re-selection. If PAN_DEC, PAN_INC, or PAN_MAX are set to the value 0, counter N3102 shall be disabled. See GSM 04.60, Radio Link Control/Medium Access Control (RLC/MAC) protocol (GPRS) .

Interpretation: Whenever the mobile station receives a PACKET UPLINK ACK/NACK message, the mobile station shall increment N3102 by PAN_INC; however N3102 shall never exceed the value PAN_MAX. Upon cell reselection the mobile station shall set counter N3102 to the value PAN_MAX. When N3102 =< 0 is reached, the mobile station shall perform an abnormal release with cell re-selection. If PAN_DEC, PAN_INC, or PAN_MAX are set to the value 0, counter N3102 shall be disabled. See GSM 04.60, Radio Link Control/Medium Access Control (RLC/MAC) protocol (GPRS) .

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Appropriate value:

Min. = 0Max. = 15Def. = 1Rule = -

MAXIMUM VALUE FOR COUNTER N3102

Note

After a modification to PAN_DEC, PAN_INC or PAN_MAX it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

Appropriate value:

Min. = 4Max. = 32Def. = 8Rule = increases by 4

DOWNLINK DTX

Interpretation: When the Downlink DTX has been set active in the BSC, it depends on the MSC and on other network elements if discontinuous transmission is used.

Appropriate value:

Min. = FMax. = TDef. = FRule = -

NMO - NETWORK MODE OF OPERATION

Note

After a modification to this parameter it takes about 5 minutes for processes to get the new values. After 5 minutes disable and then re-enable GPRS in those cells where GPRS is active for the change to take effect.

Interpretation: Whenever the mobile station receives a PACKET UPLINK ACK/NACK message, the mobile station shall increment N3102 by PAN_INC; however N3102 shall never exceed the value PAN_MAX. Upon cell reselection the mobile station shall set counter N3102 to the value PAN_MAX. When N3102 =< 0 is reached, the mobile station shall perform an abnormal release with cell re-selection. If PAN_DEC, PAN_INC, or PAN_MAX are set to the value 0, counter N3102 shall be disabled. See EN 301 349: Radio Link Control/Medium Access Control (RLC/MAC) protocol (GPRS) .

Interpretation: 00: Network operation mode I: the network sends a CS paging message for a GPRS-attached MS, either on the same channel as the GPRS paging channel (i.e., the packet paging channel or the CCCH paging channel), or on a GPRS traffic channel. This means that the MS needs only to monitor one paging channel, and that it receives CS paging messages on the packet data channel when it has been assigned a packet data channel.

01: Network operation mode II: the network sends a CS paging message for a GPRS-attached MS on the CCCH paging channel, and this channel is also used for GPRS paging. This means that the MS needs only to monitor the CCCH paging channel, but that CS paging continues on this paging channel even if the MS has been assigned a packet data channel.

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Appropriate value:

Min. = 00Max. = 01Def. = 01Rule = -

REPEAT COUNT FOR ALARM 3121

Interpretation: Repeat count for alarm “Reset circuit acknowledgement missing from MSC”.

Appropriate value:

Min. = 0Max. = 255Def. = 10Rule = -

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1

Interpretation: The FEP (Frame Error Probability) percentage value gives the correlation with the lower limit of an RxQual class (0-7). The FEP value is defined for each class (0-7) separately.

The user is able to change each of the FEP percentage values (quality classes 1 – 7) independently from the other FER percentage values. Only the FEP percentage value of the quality class zero is not changeable.

The Power Control and the Handover Algorithm uses the FEP correlation value in power control and handover decision-making if the FER Measurement feature has been activated in the BSC.

Appropriate value:

Min. = 0Max. = 100Def. = 2.0Rule = —

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL2

Interpretation: See previous parameter.

Appropriate value:

Min. = 0Max. = 100Def. = 4.0Rule = —

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FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL3

Interpretation: See parameter 21, FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1.

Appropriate value:

Min. = 0Max. = 100Def. = 6.0Rule = —

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL4.

Interpretation: See parameter 21, FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1.

Appropriate value:

Min. = 0Max. = 100Def. = 8.0Rule = —

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL5.

Interpretation: See parameter 21, FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1.

Appropriate value:

Min. = 0Max. = 100Def. = 10.0Rule = —

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL6.

Interpretation: See parameter 21, FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1.

Appropriate value:

Min. = 0Max. = 100Def. = 12.0Rule = —

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL7.

Interpretation: See parameter 21, FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1.

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Appropriate value:

Min. = 0Max. = 100Def. = 14.0Rule = —

SGSN RELEASE

Interpretation: This parameter defines the SGSN Release.

Appropriate value:

Min. = 0 (The SGSN is Release 1998 or older.)Max. = 1 (The SGSN is Release 1999 onwards.)Def. = 1Rule = —

MSC RELEASE

Interpretation: This parameter defines the MSC Release.

Appropriate value:

Min. = 0 (The MSC is Release 1998 or older.)Max. = 1 (The MSC is Release 1999 onwards.)Def. = 1Rule = —

DRX TIMER MAX

Interpretation: The maximum duration for a non-DRX (discontinuous reception) mode period in the cell. The value zero indicates that non-DRX mode is not supported.

Note

The value should be coded so that values 0 - 7 correspond to 0, 1, 2, 4, 8, 16, 32 and 64. The values 0 - 7 should be stored in the database and the values 0, 1, 2, 4, 8, 16, 32 and 64s should be given by the user.

Appropriate value:

Min. = 0 and 1, 2, 4, 8, 16, 32 and 64(s)Max. = —Def. = 4Rule = —

TWO-WAY SPEECH PATH CONNECT TRIGGER POINT

Page 23: Bss Timers (Feb 12)

Interpretation: The parameter defines when the two-way speech path connection is made during internal HOs for speech calls. The default is after an Establish Indication message reception from a BTS.

Note

0 = Always after Establish Indication from a BTS.

1 = Always after Handover Detection from a BTS.

2 = Always after Handover Detection from a BTS when a channel mode change or speech codec change happens during internal HO. Otherwise after Establish Indication from a BTS.

Appropriate value:

Min. = 0Max. = 2Def. = 0Rule = —

Page 24: Bss Timers (Feb 12)
Page 25: Bss Timers (Feb 12)

T4 60.00 S 60.00 ST7 20.00 S 20.00 ST8 12.00 S 12.00 ST10 8.00 S 8.00 ST13 15.00 S 15.00 ST17 4.00 S 4.00 ST18 12.00 S 12.00 ST3101 3.00 S 3.00 ST3103 6.00 S 6.00 ST3105_D 0.28 S 0.28 ST3105_F 0.10 S 0.10 ST3107 6.00 S 6.00 ST3109 12.00 S 12.00 ST3111 0.50 S 0.50 ST3121 12.00 S 12.00 ST3122 6.00 S 6.00 ST3168 1.00 S 1.00 ST3192 0.50 S 0.50 ST9101 10.00 S 10.00 ST9103 2.00 S 2.00 ST9104 15.00 S 15.00 ST9105 10.00 S 10.00 ST9108 2.00 S 2.00 ST9113 13.00 S 13.00 SCELL IDENTIFIER LAC+CI LAC+CIBLOCK MSG INCOMING GLOBAL RESET YES YESBLOCK MSG OUTGOING GLOBAL RESET YES YESUNBLOCK MSG IN GLOBAL RESET NO NOSEND SYS INFO GLOBAL RESET YES YESCELL BARRING INCOMING GLOBAL RESET NO NOALLOW SENDING OF CONFUSION MESSAGES NO NOALLOW CIRCUIT GROUP MESSAGES NO NOALARM LIMIT FOR UNAVAILABLE A-IF CIRCUITS 1 1ALARM DELAY FOR UNAVAILABLE A-IF CIRCUITS 60 S 60 SALARM LIMIT FOR SUCCESSIVE REMOTE TC FAIL 3 3ALLOW SENDING OF UNEQUIPPED CIRCUIT MESSAGES NO NOALLOW SENDING OF TA VALUE TO MSC 0 0PREFERENCE PROCEDURE IN CONFLICT SITUATION ASSIGN ASSIGNBS_CV_MAX 6 6DECREMENT VALUE FOR COUNTER N3102 1 1INCREMENT VALUE FOR COUNTER N3102 1 1MAXIMUM VALUE FOR COUNTER N3102 1 1DOWNLINK DTX NO NONMO - NETWORK MODE OF OPERATION 01 BI 01 BINREPEAT COUNT FOR ALARM 3121 10 10FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL1 0.02 0.02FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL2 0.04 0.04

BATURADEN

Page 26: Bss Timers (Feb 12)

FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL3 0.06 0.06FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL4 0.08 0.08FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL5 0.1 0.1FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL6 0.12 0.12FEP CORR WITH RXQUAL IN PC&HO ALGRTHM CL7 0.14 0.14SGSN RELEASE 1 0MSC RELEASE 1 0DRX TIMER MAX 3 0TWO-WAY SPEECH PATH CONNECT TRIGGER POINT 0 0

Page 27: Bss Timers (Feb 12)

BII CEMANI ITN

120.00 S 60.00 S 60.00 S 60.00 S 60.00 S 60.00 S 60.00 S 60.00 S20.00 S 20.00 S 20.00 S 20.00 S 20.00 S 20.00 S 20.00 S 20.00 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 15.00 S 12.00 S 12.00 S8.00 S 8.00 S 8.00 S 8.00 S 8.00 S 8.00 S 8.00 S 8.00 S15.00 S 15.00 S 15.00 S 15.00 S 25.00 S 25.00 S 15.00 S 15.00 S4.00 S 4.00 S 4.00 S 4.00 S 4.00 S 4.00 S 4.00 S 4.00 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S3.00 S 3.00 S 3.00 S 3.00 S 3.00 S 3.00 S 3.00 S 3.00 S6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S0.28 S 0.28 S 0.28 S 0.28 S 0.28 S 0.28 S 0.28 S 0.28 S0.10 S 0.10 S 0.10 S 0.10 S 0.10 S 0.10 S 0.10 S 0.10 S6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S1.00 S 1.00 S 1.00 S 1.00 S 1.00 S 1.00 S 1.00 S 1.00 S0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S13.00 S 13.00 S 13.00 S 13.00 S 13.00 S 13.00 S 13.00 S 13.00 SLAC+CI LAC+CI LAC+CI LAC+CI LAC+CI LAC+CI LAC+CI LAC+CI

YES YES YES YES YES YES YES YESYES YES YES YES YES YES YES YESNO NO NO NO NO NO NO NOYES YES YES YES YES YES YES YESNO NO NO NO NO NO NO NONO NO NO NO NO NO NO NONO NO NO NO NO NO NO NO1 1 1 1 1 1 1 1

60 S 60 S 60 S 60 S 60 S 60 S 60 S 60 S3 3 3 3 3 3 3 3

NO NO NO NO NO NO NO NO0 0 0 0 0 0 0 0

ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN6 6 6 6 6 6 6 61 1 1 1 1 1 1 11 1 1 1 1 1 1 11 1 1 1 1 1 1 1

NO NO NO NO NO NO NO NO01 BIN 01 BIN 01 BIN 01 BIN 01 BIN 01 BIN 01 BIN 01 BIN

10 10 10 10 10 10 10 100.02 0.02 0.02 0.02 0.02 0.02 0.02 0.020.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04

CITRALAND 1

CITRALAND 2

DENPASAR 1

DENPASAR 2

GEMBLONGAN

Page 28: Bss Timers (Feb 12)

0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.060.08 0.08 0.08 0.08 0.08 0.08 0.08 0.080.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.12 0.12 0.12 0.12 0.12 0.12 0.12 0.120.14 0.14 0.14 0.14 0.14 0.14 0.14 0.14

0 0 0 1 0 0 1 10 0 0 0 1 1 0 00 0 0 0 0 0 3 30 0 0 0 0 0 0 0

Page 29: Bss Timers (Feb 12)

MERISI PTPN

60.00 S 60.00 S 60.00 S 60.00 S 70.00 S 60.00 S 60.00 S 60.00 S20.00 S 20.00 S 20.00 S 20.00 S 20.00 S 20.00 S 20.00 S 20.00 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S8.00 S 8.00 S 8.00 S 8.00 S 8.00 S 8.00 S 8.00 S 8.00 S15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S4.00 S 4.00 S 4.00 S 4.00 S 4.00 S 4.00 S 4.00 S 4.00 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S3.00 S 3.00 S 3.00 S 3.00 S 3.00 S 3.00 S 3.00 S 3.00 S6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S0.28 S 0.28 S 0.28 S 0.28 S 0.28 S 0.28 S 0.28 S 0.28 S0.10 S 0.10 S 0.10 S 0.10 S 0.10 S 0.10 S 0.10 S 0.10 S6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S 12.00 S6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S 6.00 S1.00 S 1.00 S 1.00 S 1.00 S 1.00 S 1.00 S 1.00 S 1.00 S0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S 0.50 S10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S 15.00 S10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S 10.00 S2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S 2.00 S13.00 S 13.00 S 13.00 S 13.00 S 13.00 S 13.00 S 13.00 S 13.00 SLAC+CI LAC+CI LAC+CI LAC+CI LAC+CI LAC+CI LAC+CI LAC+CI

YES YES YES YES YES YES YES YESYES YES YES YES YES YES YES YESNO NO NO NO NO NO NO NOYES YES YES YES YES YES YES YESNO NO NO NO NO NO NO NONO NO NO NO NO NO NO NONO NO NO NO NO NO NO NO1 1 1 1 1 1 1 1

60 S 60 S 60 S 60 S 60 S 60 S 60 S 60 S3 3 3 3 3 3 3 3

NO NO NO NO NO NO NO NO0 0 0 0 0 0 0 0

ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN ASSIGN6 6 6 6 6 6 6 61 1 1 1 1 1 1 11 1 1 1 1 1 1 11 1 1 1 1 1 1 1

NO NO NO NO NO NO NO NO01 BIN 01 BIN 01 BIN 01 BIN 01 BIN 01 BIN 01 BIN 01 BIN

10 10 10 10 10 10 10 100.02 0.02 0.02 0.02 0.02 0.02 0.02 0.020.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04

JOMBANG 1

JOMBANG 2

KAYOON

KEBUMEN

MERICAN 1

MERICAN 2

Page 30: Bss Timers (Feb 12)

0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.060.08 0.08 0.08 0.08 0.08 0.08 0.08 0.080.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10.12 0.12 0.12 0.12 0.12 0.12 0.12 0.120.14 0.14 0.14 0.14 0.14 0.14 0.14 0.14

1 1 1 0 0 0 0 00 1 1 0 0 1 1 03 0 3 0 0 0 0 00 0 0 0 0 0 0 0

Page 31: Bss Timers (Feb 12)

SEMPU SIER TONGAS

60.00 S 60.00 S 70.00 S 60.00 S20.00 S 20.00 S 20.00 S 20.00 S12.00 S 12.00 S 12.00 S 12.00 S8.00 S 8.00 S 8.00 S 8.00 S15.00 S 15.00 S 15.00 S 15.00 S4.00 S 4.00 S 4.00 S 4.00 S12.00 S 12.00 S 12.00 S 12.00 S3.00 S 3.00 S 3.00 S 3.00 S6.00 S 6.00 S 6.00 S 6.00 S0.28 S 0.28 S 0.28 S 0.28 S0.10 S 0.10 S 0.10 S 0.10 S6.00 S 6.00 S 6.00 S 6.00 S12.00 S 12.00 S 12.00 S 12.00 S0.50 S 0.50 S 0.50 S 0.50 S12.00 S 12.00 S 12.00 S 12.00 S6.00 S 6.00 S 6.00 S 6.00 S1.00 S 1.00 S 1.00 S 1.00 S0.50 S 0.50 S 0.50 S 0.50 S10.00 S 10.00 S 10.00 S 10.00 S2.00 S 2.00 S 2.00 S 2.00 S15.00 S 15.00 S 15.00 S 15.00 S10.00 S 10.00 S 10.00 S 10.00 S2.00 S 2.00 S 2.00 S 2.00 S13.00 S 13.00 S 13.00 S 13.00 SLAC+CI LAC+CI LAC+CI LAC+CI

YES YES YES YESYES YES YES YESNO NO NO NOYES YES YES YESNO NO NO NONO NO NO NONO NO NO NO1 1 1 1

60 S 60 S 60 S 60 S3 3 3 3

NO NO NO NO0 0 0 0

ASSIGN ASSIGN ASSIGN ASSIGN6 6 6 61 1 1 11 1 1 11 1 1 1

NO NO NO NO01 BIN 01 BIN 01 BIN 01 BIN

10 10 10 100.02 0.02 0.02 0.020.04 0.04 0.04 0.04

SIDOARUM

Page 32: Bss Timers (Feb 12)

0.06 0.06 0.06 0.060.08 0.08 0.08 0.080.1 0.1 0.1 0.10.12 0.12 0.12 0.120.14 0.14 0.14 0.14

1 0 0 01 1 0 13 0 0 00 0 0 0