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Content for  TS 23.247  Word version:  17.4.0

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9  Network Function Servicesp. 95

9.1  MB-SMF Servicesp. 95

9.1.1  Generalp. 95

The following Table illustrates the MB-SMF Services for MBS.
Service Name Service Operations Operation Semantics Example Consumer (s)
Nmbsmf_TMGIAllocateRequest/ResponseNEF, MBSF, AF
DeallocateRequest/ResponseNEF, MBSF, AF
Nmbsmf_MBSSessionContextStatusSubscribeSubscribe/NotifySMF
ContextStatusUnsubscribeSMF
ContextStatusNotifySMF
ContextUpdateRequest/ResponseAMF, SMF
StatusSubscribeSubscribe/NotifyMBSF, NEF, AF
StatusUnsubscribeMBSF, NEF, AF
StatusNotifyMBSF, NEF, AF
CreateRequest/ResponseMBSF, NEF, AF
UpdateRequest/ResponseMBSF, NEF, AF
DeleteRequest/ResponseMBSF, NEF, AF
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9.1.2  Nmbsmf_TMGI servicep. 95

9.1.2.1  Generalp. 95

Service description:
NF Service Consumer can use this service to request the allocation of TMGIs and release allocated TMGIs.

9.1.2.2  Nmbsmf_TMGI_Allocate service operationp. 95

Service operation name:
Nmbsmf_TMGI_Allocate
Description:
This service is used by the NF Service Consumer to request the allocation of TMGI(s) or request to refresh previously allocated TMGI(s).
Inputs, Required:
Number of TMGIs.
Inputs, Optional:
TMGI(s) (i.e. the TMGI(s) to be extended the expiry time).
Outputs, Required:
TMGI(s), Expiry Time of the TMGI(s).
Outputs, Optional:
None.

9.1.2.3  Nmbsmf_TMGI_Deallocate service operationp. 95

Service operation name:
Nmbsmf_TMGI_Deallocate
Description:
NF Service Consumer can use this service to request the release of TMGI(s).
Inputs, Required:
TMGI(s).
Inputs, Optional:
None.
Outputs, Required:
Success or not.
Outputs, Optional:
None.

9.1.3  Nmbsmf_MBSSession servicep. 96

9.1.3.1  Generalp. 96

Service description:
The following are the key functionalities of this NF service:
  • (between AMF or SMF and MB-SMF) For multicast, NF Service Consumer can use this service to request the reception of MBS data or to terminate the reception of MBS data of a Multicast MBS session, or for a location dependent Multicast MBS session, the part of the MBS multicast session within a service area;
  • (between SMF and MB-SMF) For multicast, allow consumer NFs to query information (e.g. QoS information) about MBS Session. This service will be invoked by SMF for UE join event;
  • (between SMF (only for multicast) or MBSF/NEF and MB-SMF) Allow consumer NFs to subscribe and unsubscribe for an Event ID and MBS Session, or for a location dependent MBS session, related to the part of the MBS session within a service area (only for MBSF/NEF);
  • (between SMF (only for multicast) or MBSF/NEF and MB-SMF) Notifying events on the MBS Session, or for a location dependent MBS session, related to the part of the MBS session within a service area (only for MBSF/NEF), to the subscribed NFs;
  • (between MBSF/NEF/AF and MB-SMF) Creation/Modification/Activation/Deactivation/Release of Multicast MBS session, or for a location dependent Multicast MBS session, the part of the Multicast MBS session within a service area; and
  • (between MBSF/NEF and MB-SMF) Creation/Modification/Start/Stop/Release of Broadcast MBS sessions, or for a location dependent Broadcast MBS session, the part of the Broadcast MBS session within a service area.
The following events related to MBS Session Context can be subscribed by SMF as consumer NF:
  • (between SMF and MB-SMF, only for multicast) QoS change: The event notification is sent when QoS within a Multicast MBS session changes, e.g. adding/removing QoS flow(s);
  • (between SMF and MB-SMF only for multicast) multicast session state (Active, Inactive);
  • (between SMF and MB-SMF only for multicast) Multicast MBS session service area change (for a location dependent Broadcast MBS session, the notification relates to the part of the Broadcast MBS session within a service area);
  • (between SMF and MB-SMF only for multicast) Multicast MBS session release.
The following events related to an MBS session, or for a location dependent MBS session, related to the part of the MBS session within a service area, can be subscribed by MBSF, NEF, or AF as consumer NF:
  • (between MBSF/NEF/AF and MB-SMF) MBS session release due to TMGI expiry;
  • (between MBSF/NEF/AF and MB-SMF) Broadcast delivery status.
Up

9.1.3.2  Nmbsmf_MBSSession_ContextUpdate service operationp. 96

Service operation name:
Nmbsmf_MBSSession_ContextUpdate
Description:
NF Service Consumer can use this service to request or terminate the reception of data of a multicast session, or for a location dependent MBS session, related to the part of the MBS session within a service area.
Inputs, Required:
MBS Session ID, if consumer is AMF: N2 container (Establishment or Release, MBS Session ID, Possible Area Session ID, Possible GTP Tunnel info for unicast transport, Possible tracking Area IDs), AMF ID, if consumer is SMF: SMF ID, MBS Session ID, Action(Establishment or Release).
Inputs, Optional:
if consumer is AMF: N2 container (MBS session ID, Possible Multicast DL tunnel info, multicast QoS flow information, session status indication (active/inactive), [MBS service areas]); if consumer is SMF: Multicast DL tunnel info.
Outputs, Required:
Success or not.
Outputs, Optional:
if consumer is AMF: N2 container (MBS Session ID, Possible Multicast DL tunnel info, multicast QoS flow information, session state (Active/Inactive), [MBS service areas]); if consumer is SMF: Multicast DL tunnel info.
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9.1.3.3  Nmbsmf_MBSSession_ContextStatusSubscribe service operationp. 97

Service operation name:
Nmbsmf_MBSSession_ContextStatusSubscribe
Description:
Service Consumer NF can use this service operation to request information (e.g. QoS information) about a multicast session and to subscribe to notification of events about the multicast session context.
Inputs, Required:
MBS Session ID, Notification Target Address, Events ID(s).
Inputs, Optional:
None.
Outputs, Required:
None.
Outputs, Optional:
Event information (e.g. QoS information for multicast session, multicast MBS session state (Active, Inactive), multicast session service area for local multicast service), Start time of multicast MBS session, multicast DL tunnel info, if consumer is SMF: indication that the multicast MBS session allows any UE to join.
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9.1.3.4  Nmbsmf_MBSSession_ContextStatusNotify service operationp. 97

Service operation name:
Nmbsmf_MBSSession_ContextStatusNotify
Description:
This service operation, which is applicable to multicast MBS session, is used by the MB-SMF to notify its consumers about events of an MBS Session, or for a location dependent MBS session, related to a service area change.
Inputs, Required:
MBS Session ID, Event ID.
Inputs, Optional:
Event information (e.g. QoS information of MBS Session, MBS service area, Area Session ID).
Outputs, Required:
Operation execution result indication.
Outputs, Optional:
Cause.

9.1.3.5  Nmbsmf_MBSSession_ContextStatusUnsubscribe service operationp. 97

Service operation name:
Nmbsmf_MBSSession_ContextStatusUnsubscribe
Description:
This service operation, which is applicable to multicast MBS session, is used by the consumer to unsubscribe to notifications about MBS context events.
Inputs, Required:
MBS Session ID.
Inputs, Optional:
None.
Outputs, Required:
Operation execution result indication.
Outputs, Optional:
None.

9.1.3.6  Nmbsmf_MBSSession_Create service operationp. 97

Service operation name:
Nmbsmf_MBSSession_Create
Description:
Create a new multicast session or broadcast session, or for a location dependent MBS session, the part of the MBS session within a service area. Optionally subscribe to notifications for this MBS session.
Input, Required:
MBS Session ID (SSM or TMGI) or TMGI allocation request, MBS Service Type (multicast or broadcast).
Input, Optional:
DNN, S-NSSAI, MBS service area, MBS Service Information (as defined in clause 6.14), Input Transport Address Request, indication that the PCF has to be contacted. For a multicast session, indication that any UE may join. For a broadcast session, MBS start time, MBS termination time, MBS FSA ID(s). For subscription to notifications event ID(s), Notification Target Address, Request for location dependent MBS session.
Output, Required:
Result Indication.
Output, Optional:
TMGI, Expiry Time of the TMGI, Cause, MB-UPF tunnel info, MBS FSA ID(s), Area Session ID.

9.1.3.7  Nmbsmf_MBSSession_Update service operationp. 98

Service operation name:
Nmbsmf_MBSSession_Update
Description:
Update the established multicast session or broadcast session, or for a location dependent MBS session, the part of the MBS session within a service area, e.g. QoS update.
Input, Required:
MBS Session ID.
Input, Optional:
MBS Service Information (as defined in clause 6.14), MBS service area, session state (Active/Inactive), for a broadcast session, MBS FSA ID(s), Area Session ID, indication that the PCF has to be contacted.
Output, Required:
Result Indication.
Output, Optional:
Cause, MBS FSA ID(s).

9.1.3.8  Nmbsmf_MBSSession_Delete service operationp. 98

Service operation name:
Nmbsmf_MBSSession_Delete
Description:
Release the multicast session or broadcast session, or for a location dependent MBS session, the part of the MBS session within a service area. The MBS session is deleted and the subscription (if any) to notifications about events related to the status of the MBS session is terminated.
Input, Required:
MBS Session ID.
Input, Optional:
Area Session ID.
Output, Required:
Result Indication.
Output, Optional:
Cause.

9.1.3.9  Nmbsmf_MBSSession_StatusNotify service operationp. 98

Service operation name:
Nmbsmf_MBSSession_StatusNotify
Description:
This service operation is used by the MB-SMF to notify its consumers about the status change of the MBS session, or for a location dependent MBS session, of the part of the MBS session within a service area.
Input, Required:
MBS Session ID, Event ID.
Input, Optional:
Event information, Area Session ID.
Output, Required:
Result Indication.

9.1.3.10  Nmbsmf_MBSSession_StatusSubscribe service operationp. 98

Service operation name:
Nmbsmf_MBSSession_StatusSubscribe
Description:
This service operation is used by the NF service consumer (e.g. NEF, MBSF, AF) to subscribe notification about events related to the status of the MBS session, or for a location dependent MBS session, the part of the MBS session within a service area.
Input, Required:
MBS Session ID, event ID(s), Notification Target Address.
Input, Optional:
Area Session ID.
Output, Required:
When the subscription is accepted: Subscription Correlation ID.

9.1.3.11  Nmbsmf_MBSSession_StatusUnsubscribe service operationp. 99

Service operation name:
Nmbsmf_MBSSession_StatusUnsubscribe
Description:
This service operation, is used by the NF service consumer (e.g. NEF, MBSF, AF) to unsubscribe to notification about events related to the status of the MBS session, or for a location dependent MBS session, the part of the MBS session within a service area.
Input, Required:
Subscription Correlation ID.
Input, Optional:
Area Session ID.
Output, Required:
Result Indication.

9.2  PCF Servicesp. 99

9.2.1  Generalp. 99

The following Table illustrates the PCF Services for MBS.
Service Name Service Operations Operation Semantics Example Consumer (s)
Npcf_MBSPolicyControlCreateRequest/ResponseMB-SMF
UpdateRequest/ResponseMB-SMF
DeleteRequest/ResponseMB-SMF
Npcf_MBSPolicyAuthorizationCreateRequest/ResponseAF, NEF, MBSF
UpdateRequest/ResponseAF, NEF, MBSF
DeleteRequest/ResponseAF, NEF, MBSF
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9.2.2  Npcf_MBSPolicyControl servicep. 99

9.2.2.1  Generalp. 99

Service description:
NF Service Consumer, e.g. MB-SMF, can create and manage a MBS Policy Association in the PCF through which the NF Service Consumer receives policy information for the MBS Session.
As part of this service, the PCF may provide the NF Service Consumer, e.g. MB-SMF, with policy information for the MBS Session that may contain (the details are defined in clause 6.10):
  • Policy information applicable for an entire MBS Session.
  • PCC rule information.
  • Policy Control Request Trigger information.
At MBS Session establishment the NF Service Consumer, e.g. MB-SMF, requests the creation of a corresponding MBS Policy Association with the PCF (Npcf_MBSPolicyControl_Create) and provides relevant parameters about the MBS Session to the PCF.
  • When the PCF has created the "MBS Policy Association", the PCF may provide policy information as defined above.
When a Policy Control Request Trigger condition is met the NF Service Consumer, e.g. MB-SMF, requests the update (Npcf_MBSPolicyControl_Update) of the MBS Policy Association by providing information on the condition(s) that have been met. The PCF may provide updated policy information for the MBS session to the NF Service Consumer.
The PCF may at any time provide updated policy information for the MBS session (Npcf_MBSPolicyControl_UpdateNotify).
At MBS Session Release the NF Service Consumer, e.g. MB-SMF, requests the deletion of the corresponding MBS Policy Association.
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9.2.2.2  Npcf_MBSPolicyControl_Create service operationp. 100

Service operation name:
Npcf_MBSPolicyControl_Create
Description:
The NF Service Consumer can request the creation of a MBS Policy Association and provide relevant parameters about the MBS Session to the PCF.
Inputs, Required:
MBS Session ID.
Inputs, Optional:
MBS Service Information (as defined in clause 6.14), DNN, S-NSSAI.
Outputs, Required:
Success or Failure. In the case of Success, MBS Policy Association ID and Policy information for the MBS Session (as defined in clause 6.10).
Outputs, Optional:
In the case of Failure, the Service Information that can be accepted by the PCF. In the case of Failure, indication that another PCF shall be contacted and an ID of that other PCF.
Up

9.2.2.3Void

9.2.2.4  Npcf_MBSPolicyControl_Delete service operationp. 100

Service operation name:
Npcf_MBSPolicyControl_Delete
Description:
The NF Service Consumer (i.e. MB-SMF) can request the deletion of the MBS Policy Association and of the associated resources.
Inputs, Required:
MBS Policy Association ID.
Inputs, Optional:
None.
Outputs, Required:
Success or Failure.
Outputs, Optional:
None.

9.2.2.5  Npcf_MBSPolicyControl_Update service operationp. 100

Service operation name:
Npcf_MBSPolicyControl_Update
Description:
The NF Service Consumer can request an update of the MBS Policy Association.
Inputs, Required:
MBS Policy Association ID.
Inputs, Optional:
MBS Service Information (as defined in clause 6.14), Information on the Policy Control Request Trigger condition that has been met.
Outputs, Required:
Success or Failure.
Outputs, Optional:
In the case of Failure, the Service Information that can be accepted by the PCF. In the case of Success, Policy information for the MBS Session (as defined in clause 6.10).

9.2.3  Npcf_MBSPolicyAuthorization Servicep. 101

9.2.3.1  Generalp. 101

Service description:
This service is to authorise an AF / NEF / MBSF request for an MBS service and to create policies as requested by the authorized AF for the MBS Service. This service also allows the NF consumer to subscribe/unsubscribe the notification of events.

9.2.3.2  Npcf_MBSPolicyAuthorization_Create service operationp. 101

Service operation name:
Npcf_MBSPolicyAuthorization_Create
Description:
Authorize the request, and optionally determines and installs MBS Policy Control Data according to the information provided by the NF Consumer.
Inputs, Required:
MBS Session ID.
Inputs, Optional:
DNN if available, S-NSSAI if available, MBS Service Information (as defined in clause 6.14).
Outputs, Required:
Success (application session context) or Failure (reason for failure).
Outputs, Optional:
In the case of Failure, the MBS Service Information that can be accepted by the PCF.

9.2.3.3  Npcf_MBSPolicyAuthorization_Update service operationp. 101

Service operation name:
Npcf_MBSPolicyAuthorization_Update
Description:
Provides updated information to the PCF.
Inputs, Required:
Identification of the application session context.
Inputs, Optional:
MBS Service Information (as defined in clause 6.14).
Outputs, Required:
Success or Failure (reason for failure).
Outputs, Optional:
In the case of Failure, the MBS Service Information that can be accepted by the PCF. In the case of Success, indication that the PCF has to be contacted.
Provides updated application level information and communicates with Npcf_MBSPolicyControl service to determine and install the policy according to the information provided by the NF Consumer. Updates an application context in the PCF.
Up

9.2.3.4  Npcf_MBSPolicyAuthorization_Delete service operationp. 101

Service operation name:
Npcf_MBSPolicyAuthorization_Delete
Description:
Provides means for the NF Consumer to delete the context of application level session information.
Inputs, Required:
Identification of the application session context.
Inputs, Optional:
None.
Outputs, Required:
Success or Failure.
Outputs, Optional:
None.

9.3  AMF Servicesp. 102

9.3.1  Generalp. 102

The Namf_MT_EnableGroupReachability service operation is defined in TS 23.502.
The following Table illustrates the new AMF Service for broadcast communication.
Service Name Service Operations Operation Semantics Example Consumer (s)
Namf_MBSBroadcastContextCreateRequest/ResponseMB-SMF
ContextUpdateRequest/ResponseMB-SMF
ContextReleaseRequest/ResponseMB-SMF
ContextStatusNotifySubscribe/NotifyMB-SMF
Namf_MBSCommunicationN2MessageTransferRequest/ResponseMB-SMF
Up

9.3.2  Namf_MBSBroadcast servicep. 102

9.3.2.1  Generalp. 102

Service description:
This service is used by the consumer for broadcast communication.

9.3.2.2  Namf_MBSBroadcast_ContextCreate service operationp. 102

Service operation name:
Namf_MBSBroadcast_ContextCreate
Description:
This service operation is used to create the broadcast session context towards the AMF.
Inputs, Required:
MBS Session ID, Broadcast service area, N2 container (e.g. MBS Session ID, MBS QoS profile, Broadcast service area).
Inputs, Optional:
Area Session ID, Optional parameters in the N2 container (MBS IP Multicast Tunnel Info, Area Session ID, MBS FSA ID(s)).
Outputs, Required:
Result Indication.
Outputs, Optional:
N2 container (NG-RAN MBS Tunnel Info).

9.3.2.3  Namf_MBSBroadcast_ContextUpdate service operationp. 102

Service operation name:
Namf_MBSBroadcast_ContextUpdate
Description:
This service operation is used to update the broadcast session context towards the AMF.
Inputs, Required:
MBS Session ID.
Inputs, Optional:
Broadcast service area, N2 container (MBS Session ID, Possible MBS QoS profile, Possible Broadcast service area, Possible Area Session ID, Possible MBS IP Multicast Tunnel Info, MBS FSA ID(s)).
Outputs, Required:
Result Indication.
Outputs, Optional:
N2 container (MBS Session ID, NG-RAN MBS Tunnel Info).

9.3.2.4  Namf_MBSBroadcast_ContextRelease service operationp. 102

Service operation name:
Namf_MBSBroadcast_ContextRelease
Description:
This service operation is used to release the broadcast session context towards the AMF.
Inputs, Required:
MBS Session ID, N2 container (MBS Session ID).
Inputs, Optional:
None.
Outputs, Required:
Result Indication.
Outputs, Optional:
None.

9.3.2.5  Namf_MBSBroadcast_ContextStatusNotify service operationp. 103

Service operation name:
Namf_MBSBroadcast_ContextStatusNotify
Description:
This service operation is used to notify its consumers about the status change of a broadcast session context.
Inputs, Required:
MBS Session ID.
Inputs, Optional:
Event ID (e.g. change of NG-RAN MBS Tunnel Info), N2 SM information.
Outputs, Required:
Result Indication.
Outputs, Optional:
None.

9.3.3  Namf_MBSCommunication Servicep. 103

9.3.3.1  Generalp. 103

Service description:
This service enables MBS multicast related N2 message transfer towards the NG-RAN via the AMF, during multicast session activation/deactivation/update/release.

9.3.3.2  Namf_MBSCommunication_N2MessageTransfer service operationp. 103

Service operation name:
Namf_MBSCommunication_N2MessageTransfer
Description:
This service operation is used by the NF Consumer to request the AMF to transfer the MBS related N2 message to the NG-RAN nodes serving the MBS multicast session.
Input, Required:
MBS Session ID, N2 SM information.
Input, Optional:
MBS Area Session ID.
Output, Required:
Result Indication.
Output, Optional:
Cause.

9.4  NEF Servicesp. 103

9.4.1  Generalp. 103

The following Table illustrates the NEF Services for MBS.
Service Name Service Operations Operation Semantics Example Consumer (s)
Nnef_MBSTMGIAllocateRequest/ResponseAF
DeallocateRequest/ResponseAF
ExpiryNotifySubscribe/NotifyAF
Nnef_MBSSessionCreateRequest/ResponseAF
UpdateRequest/ResponseAF
DeleteRequest/ResponseAF
StatusNotifySubscribe/NotifyAF
StatusSubscribeAF
StatusUnsubscribeAF
Up

9.4.2  Nnef_MBSTMGI servicep. 104

9.4.2.1  Generalp. 104

Service description:
NF Service Consumer can use this service to request the allocation of TMGIs and deallocate TMGIs previously allocated.

9.4.2.2  Nnef_MBSTMGI_Allocate service operationp. 104

Service operation name:
Nnef_MBSTMGI_Allocate
Description:
This service is used by the NF Service Consumer to request allocation of TMGI(s), or to refresh the expiry time for already allocated TMGI(s).
Inputs, Required:
Number of TMGIs (may be zero if only a refresh of expiry time is requested).
Inputs, Optional:
TMGI(s) to be refreshed, MBS service area.
Outputs, Required:
TMGIs, Expiry Time, Success or not.
Outputs, Optional:
None.

9.4.2.3  Nnef_MBSTMGI_Deallocate service operationp. 104

Service operation name:
Nnef_MBSTMGI_Deallocate
Description:
This service is used by the NF Service Consumer to request deallocation the TMGI(s).
Inputs, Required:
TMGI(s).
Inputs, Optional:
None.
Outputs, Required:
Success or not.
Outputs, Optional:
None.

9.4.2.4  Nnef_MBSTMGI_ExpiryNotify service operationp. 104

Service operation name:
Nnef_MBSTMGI_ExpiryNotify
Description:
This service is used by the NEF to notify the NF service consumer of the timer expiry for TMGI(s).
Inputs, Required:
TMGI(s).
Inputs, Optional:
None.
Outputs, Required:
None.
Outputs, Optional:
None.

9.4.3  Nnef_MBSSession Servicep. 105

9.4.3.1  Generalp. 105

Service description:
This service operates on the multicast and broadcast MBS sessions. The following are the key functionalities of this NF service:
  • Create/Update Delete for both multicast and broadcast MBS session, or for a location dependent MBS session, the part of the MBS session within a service area;
  • Provide a Notification about subscribed events. The following events are supported:
    • MBS session release due to TMGI expiry.
    • Broadcast delivery status.

9.4.3.2  Nnef_MBSSession_Create service operationp. 105

Service operation name:
Nnef_MBSSession_Create
Description:
Create a new multicast session or broadcast session, or for a location dependent MBS session, the part of the MBS session within a service area. Optionally implicitly subscribe to notifications for this MBS session.
Input, Required:
MBS Session ID (SSM or TMGI) or TMGI allocation request, MBS Service Type (broadcast or multicast).
Input, Optional:
MBS service area (mandatory for broadcast. Can be Cell ID list and/or TAI list, or geographical area information, or civic address information), MBS start time, MBS stop time, MBS Service Information (as defined in clause 6.14), Input Transport Address Request, session state (Active/Inactive), for subscription to notifications notification target address. For a multicast session, indication that any UE may join the multicast session. Request for location dependent MBS session. For a broadcast session, MBS FSA ID(s).
Output, Required:
Result Indication.
Output, Optional:
TMGI, Cause, MB-UPF tunnel info, MBS FSA ID(s), Area Session ID.
Up

9.4.3.3  Nnef_MBSSession_Update service operationp. 105

Service operation name:
Nnef_MBSSession_Update
Description:
This service is used by the NF service consumer to update the established multicast session or broadcast session, or for a location dependent MBS session, the part of the MBS session within a service area, e.g. QoS update. For multicast MBS Session, this service is also used to activate or deactivate the MBS Session.
Input, Required:
MBS Session ID.
Input, Optional:
MBS Service Information (as defined in clause 6.14), MBS service area, session state (Active/Inactive), Area Session ID. For a broadcast session, MBS FSA ID(s).
Output, Required:
Result Indication.
Output, Optional:
Cause, MBS FSA ID(s).

9.4.3.4  Nnef_MBSSession_Delete service operationp. 105

Service operation name:
Nnef_MBSSession_Delete
Description:
This service is used to delete the multicast or broadcast MBS session, or for a location dependent MBS session, the part of the MBS session within a service area.
Input, Required:
MBS Session ID.
Input, Optional:
Area Session ID.
Output, Required:
Result Indication.
Output, Optional:
Cause.

9.4.3.5  Nnef_MBSSession_StatusNotify service operationp. 106

Service operation name:
Nnef_MBSSession_StatusNotify
Description:
This service is used by the MB-SMF to notify the NF service consumers of the subscribed events related to an MBS session, or for a location dependent MBS session, related to the part of the MBS session within a service area.
Inputs, Required:
Status Information, MBS Session ID.
Inputs, Optional:
Area Session ID.
Outputs, Required:
None.
Outputs, Optional:
None.

9.4.3.6  Nnef_MBSSession_StatusSubscribe service operationp. 106

Service operation name:
Nnef_MBSSession_StatusSubscribe
Description:
This service is used by the NF service consumers to subscribe to the MBS Session status information of an MBS session, or for a location dependent MBS session, of the part of the MBS session within a service area.
Inputs, Required:
Status Information, MBS Session ID.
Inputs, Optional:
Area Session ID.
Outputs, Required:
None.
Outputs, Optional:
None.

9.4.3.7  Nnef_MBSSession_StatusUnsubscribe service operationp. 106

Service operation name:
Nnef_MBSSession_StatusUnsubscribe
Description:
This service is used by the NF service consumers to unsubscribe to the MBS Session status information of an MBS session or for a location dependent MBS session, of the part of the MBS session within a service area.
Inputs, Required:
Status Information, MBS Session ID.
Inputs, Optional:
Area Session ID.
Outputs, Required:
None.
Outputs, Optional:
None.

9.5  MBSF Servicesp. 106

MBSF services are defined in TS 26.502.

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