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Overview21222324252627282931323334353637384‑5x

Content for  TS 23.041  Word version:  17.0.0

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9.2.10  RESTART-INDICATION Request/Indication

Parameter Reference Presence
Cell-List 9.3.5.2M
Recovery Indication 9.3.21O
GSM only [Broadcast Message Type] 9.3.27O
 
The RESTART-INDICATION Request is used by the BSC/RNC to indicate to the CBC a CB related restart situation in one or more of its cells (e.g. when an existing or a new cell becomes operational during normal BSC/RNC operation or when the BSC/RNC initialises).
Any referenced cell are again in CB-operational state (have resumed CB operation). The parameter Recovery Indication, if present, indicates whether CB related data are lost for the cells referenced in the Cell-List and have to be re-loaded. If the Recovery Indication parameter is absent, the CBC shall interpret it as the Recovery Indication with the value data lost.
The CBC upon receiving a RESTART INDICATION indication, marks the cell as operational again. It will usually generate WRITE-REPLACE requests for this cell, according to the actual CB message loading at the moment of the restart.
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9.2.11  RESET Request/IndicationWord‑p. 44
Parameter Reference Presence
Cell-List 9.3.5.1M
 
The RESET Request is used by the CBC to force one or more cells of one BSC/RNC into CB-idle state.
The RESET Request may also be used by the CBC to request the CB operational state of cells earlier indicated to have failed (polling CB operational state).
If a BSC/RNC receives a RESET Request, the indicated cells enter idle state (same state as after "power on"). All CB related information concerning earlier CB messages in a referenced cell is lost.
The BSC/RNC acknowledges the RESET Request for each cell by a RESET-COMPLETE response or, if not adequate, by a RESET-FAILUREresponse.
Several responses may be combined using a cell list in the RESET-COMPLETE or RESET-FAILURE response.
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9.2.12  FAILURE-INDICATION Request/Indication

Parameter Reference Presence
Cell-List 9.3.5.2M
GSM only [Broadcast Message Type] 9.3.27O
 
The FAILURE-INDICATION Request is used by the BSC/RNC to indicate to the CBC a CB related problem situation in one or more of its cells.
Any referenced cell enters CB-not-operational state. The status of the CBS messages is undefined until the Restart Indication is sent. It remains in not-operational state until a RESTART-INDICATION request (see subclause 9.2.10) indicates normal CB operation (again).
The CBC upon receiving a FAILURE-INDICATION, marks this cell as failed. It will generally not generate further WRITE REPLACE requests for this cell, up to the point when the CBC is informed by a RESTART indication, that the cell has resumed CB operation.
The BSC/RNC refuses further WRITE-REPLACE requests from the CBC with the cause "cell broadcast not operational" when any referenced cell is in the CB-not-operational state.
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9.2.13  SET-DRX Request/Indication

Parameter Reference Presence
Cell-List 9.3.5.1M
Schedule-Period 9.3.12O
Reserved-Slots 9.3.13O
GSM only [Channel Indicator 9.3.6O]
 
This primitive is applicable in GSM only. In UMTS DRX is a mandatory feature in the RNC and no activation/ deactivation function on CBS related radio resources controlled by the CBC is necessary.
The SET-DRX Request is used by the CBC to set DRX specific parameters i.e. the schedule period and the number of slots reserved for high priority CBS messages, see TS 44.012. At least one of the Schedule-Period or Reserved-Slots parameters must be present in the primitive. If this primitive is not supported, the BSC may use default values.
If a BSC receives a SET-DRX Indication, the new DRX parameters will be taken into account starting from the next schedule period in each cell, see TS 44.012.
If a BSC receives a SET-DRX Indication, the new DRX parameters will be applied for all cells that do not handle any broadcast message (null loading).
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9.2.14  SET-DRX- REPORT Response/ConfirmWord‑p. 45
Parameter Reference Presence
Cell-List 9.3.5.2O
Failure-List 9.3.14O
GSM only [Channel Indicator 9.3.6O]
 
This primitive will be sent by the BSC to the CBC in response to a SET-DRX Request/Indication primitive.
The Failure-List will contain those cells which were present in the Request message and which failed the requested operation.
If the new schedule period parameters are not acceptable on a cell due to the load of the cell, the cause "bss capacity exceeded" is used in the Failure-list.
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9.2.15Void

9.2.16  WRITE-REPLACE-WARNING-REQUEST Request/Indication |R11|

Parameter Reference Presence
Message Type 9.3.28M
Message Identifier 9.3.1M
Serial-Number 9.3.3M
Repetition-Period E-UTRAN 9.3.36M
No-of-Broadcasts-Requested 9.3.9M
List of TAIs 9.3.29O
Warning Area List 9.3.30O
Extended Repetition-Period 9.3.37O
Warning-Type 9.3.24O
Warning-Security-Information 9.3.25O
Data Coding Scheme 9.3.18O (Note)
Warning Message Content E-UTRAN 9.3.35O
OMC ID 9.3.31O
Concurrent Warning Message Indicator 9.3.32O
Send Write-Replace-Warning-Indication 9.3.39O
Global eNB ID 9.3.46O
List of NG-RAN TAIs 9.3.54O
Warning Area List NG-RAN 9.3.55O
Warning Message Content NG-RAN 9.3.51O
Global RAN Node ID 9.3.53O
RAT Selector NG-RAN 9.3.56O
Warning Area Coordinates 9.3.63O
 
This primitive is sent by the CBC to the MME or to the PWS-IWF.
The WRITE-REPLACE-WARNING-REQUEST Request/Indication primitive is to request the MME and the AMF to start or overwrite a warning message broadcast. The response to this Request/Indication primitive is sent by the MME or the AMF in a corresponding WRITE-REPLACE-WARNING-CONFIRM primitive.
If the message is sent to the MME, then the List of TAIs IE, the Warning Area List IE, the Warning Message Content E UTRAN IE and the Global eNB ID IE may be used and the List of NG-RAN TAIs IE, the Warning Area List NG-RAN IE, the Warning Message Content NG-RAN IE, the Global RAN Node ID IE and the RAT Selector NG-RAN IE shall not be used.
If the message is sent to the PWS-IWF, then the List of NG-RAN TAIs IE, the Warning Area List NG-RAN IE, the Warning Message Content NG-RAN IE, the Global RAN Node ID IE and the RAT Selector NG-RAN IE may be used and the List of TAIs IE, the Warning Area List IE, the Repetition-Period E-UTRAN IE, the Extended Repetition Period IE, the Warning Message Content E-UTRAN IE, and the Global eNB ID IE shall not be used. The WRITE-REPLACE-WARNING-REQUEST Request/Indication primitive shall then be forwarded to the AMF.
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9.2.17  WRITE-REPLACE-WARNING-CONFIRM Response/Confirm |R11|Word‑p. 46
Parameter Reference Presence
Message Type 9.3.28M
Message Identifier 9.3.1M
Serial-Number 9.3.3M
Cause E-UTRAN 9.3.33M
Criticality Diagnostics 9.3.34O
Unknown Tracking Area List 9.3.38O
Cause NG-RAN 9.3.50O
Unknown NG-RAN Tracking Area List 9.3.57O
 
This primitive is sent by the MME or by the PWS-IWF to the CBC. The PWS-IWF receives this message from the AMF.
The WRITE-REPLACE-WARNING-CONFIRM Response/Confirm primitive is to acknowledge the start or overwrite of a WRITE-REPLACE-WARNING-REQUEST for a warning message.
If the message is received from an MME then the Cause E-UTRAN IE and the Unknown Tracking Area IE may be present. If the message is received from an AMF via a PWS-IWF then the Cause NG-RAN IE and the Unknown NG-RAN Tracking Area List may be present.
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9.2.18  STOP-WARNING-REQUEST Request/Indication |R11|

Parameter Reference Presence
Message Type 9.3.28M
Message Identifier 9.3.1M
Serial-Number 9.3.3M
List of TAIs 9.3.29O
Warning Area List 9.3.30O
OMC ID 9.3.31O
Send Stop Warning Indication 9.3.41O
Stop-All Indicator 9.3.43O
List of NG-RAN TAIs 9.3.54O
Warning Area List NG-RAN 9.3.55O
RAT Selector NG-RAN 9.3.56O
 
This primitive is sent by the CBC to the MME or to the PWS-IWF.
The STOP-WARNING-REQUEST Request/Indication primitive is sent to request to stop a warning message broadcast. The response to this Request/Indication primitiveis sent by the MME or the AMF in a corresponding STOP-WARNING-CONFIRM primitive.
If the message is sent to an MME, then the List of TAIs IE and the Warning Area List IE may be used and the List of NG-RAN TAIs IE, the Warning Area List NG-RAN IE and the RAT Selector NG-RAN IE shall not be used.
If the message is sent to the PWS-IWF, then the List of NG-RAN TAIs IE, the Warning Area List NG-RAN IE and the RAT Selector NG-RAN IE may be used and the List of TAIs IE and the Warning Area List IE shall not be used. The STOP-WARNING-REQUEST Request/Indication primitive shall then be forwarded to the AMF.
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9.2.19  STOP-WARNING-CONFIRM Response/Confirm |R11|Word‑p. 47
Parameter Reference Presence
Message Type 9.3.28M
Message Identifier 9.3.1M
Serial-Number 9.3.3M
Cause E-UTRAN 9.3.33M
Criticality Diagnostics 9.3.34O
Unknown Tracking Area List 9.3.38O
Cause NG-RAN 9.3.50O
Unknown NG-RAN Tracking Area List 9.3.57O
 
This primitive is sent by the MME or by the PWS-IWF to the CBC. The PWS-IWF receives this message from the AMF.
The STOP-WARNING-CONFIRM Response/Confirm primitive is to acknowledge the receipt of the STOP-WARNING-REQUEST primitive for a warning message.
If the message is received from an MME then the Cause E-UTRAN IE and the Unknown Tracking Area IE may be present. If the message is received from an AMF via the PWS-IWF then the Cause NG-RAN IE and the Unknown NG-RAN Tracking Area List may be present.
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9.2.20  WRITE-REPLACE-WARNING-INDICATION Request/Indication |R12|

Parameter Reference Presence
Message Type 9.3.28M
Message Identifier 9.3.1M
Serial-Number 9.3.3M
Broadcast Scheduled Area List 9.3.40O
Broadcast Scheduled Area List NG-RAN 9.3.58O
 
This Indication is sent by the MME to report to the CBC the Broadcast Scheduled Area List(s) the MME has received from the eNodeB(s) as Broadcast Completed Area List. Multiple responses from eNodeBs may be combined in a Broadcast Scheduled Area List.
This Indication is sent by an AMF via the PWS-IWF to report to the CBC the Broadcast Scheduled Area List(s) NG-RAN the AMF has received from the NG-RAN node(s) as Broadcast Completed Area List. Multiple responses from NG-RAN nodes may be combined by the AMF in a Broadcast Scheduled Area List NG-RAN.
If the MME or the PWS-IWF interfaces with multiple CBCs (i.e. has active SCTP associations established with multiple CBCs), the MME or PWS-IWF shall forward the same WRITE-REPLACE-WARNING-INDICATION message to all CBCs.
The Broadcast Scheduled Area List IE or Broadcast Scheduled Area List NG-RAN IE is not included in the WRITE-REPLACE WARNING INDICATION when the broadcast is unsuccessful in all the cells within the eNodeBs or NG-RAN nodes.
If the message is received from an MME then the Broadcast Scheduled Area List IE may be present. If the message is received from an AMF via the PWS-IWF then the Broadscast Scheduled Area List NG-RAN IE may be present.
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