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Content for  TS 23.247  Word version:  18.7.0

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9.4 NEF Services  9.4.1 General  9.4.2 Nnef_MBSTMGI service  9.4.2.1 General  9.4.2.2 Nnef_MBSTMGI_Allocate service operation  9.4.2.3 Nnef_MBSTMGI_Deallocate service operation  9.4.2.4 Nnef_MBSTMGI_ExpiryNotify service operation  9.4.3 Nnef_MBSSession Service  9.4.3.1 General  9.4.3.2 Nnef_MBSSession_Create service operation  9.4.3.3 Nnef_MBSSession_Update service operation  9.4.3.4 Nnef_MBSSession_Delete service operation  9.4.3.5 Nnef_MBSSession_StatusNotify service operation  9.4.3.6 Nnef_MBSSession_StatusSubscribe service operation  9.4.3.7 Nnef_MBSSession_StatusUnsubscribe service operation  9.4.4 Nnef_MBSGroupMsgDelivery Service  9.4.4.1 General  9.4.4.2 Nnef_MBSGroupMsgDelivery_Create service operation  9.4.4.3 Nnef_MBSGroupMsgDelivery_Update service operation  9.4.4.3a Nnef_MBSGroupMsgDelivery_Delete service operation  9.4.4.4 Nnef_MBSGroupMsgDelivery_StatusNotify service operation  9.5 MBSF Services 

 

9.4  NEF Services  p. 124

9.4.1  General  p. 124

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
Nnef_MBSGroupMsgDeliveryCreateRequest/ResponseAF
UpdateRequest/ResponseAF
DeleteRequest/ResponseAF
StatusNotifySubscribe/NotifyAF
Up

9.4.2  Nnef_MBSTMGI service  p. 125

9.4.2.1  General  p. 125

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 operation  p. 125

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) for which the expiry time is to be extended, MBS service area.
Outputs, Required:
TMGIs, Expiry Time, Result Indication.
Outputs, Optional:
NID.

9.4.2.3  Nnef_MBSTMGI_Deallocate service operation  p. 125

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 operation  p. 125

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 Service  p. 126

9.4.3.1  General  p. 126

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 operation  p. 126

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, NR RedCap UE Information (as defined in clause 6.19). 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), Associated Session ID for resource sharing across broadcast MBS Sessions during network sharing.
Output, Required:
Result Indication.
Output, Optional:
TMGI, NID, Cause, MB-UPF tunnel info, MBS FSA ID(s), Area Session ID, Information of area reduction.
Up

9.4.3.3  Nnef_MBSSession_Update service operation  p. 126

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), NR RedCap UE Information (as defined in clause 6.19).
Output, Required:
Result Indication.
Output, Optional:
MBS FSA ID(s), Information of area reduction.

9.4.3.4  Nnef_MBSSession_Delete service operation  p. 127

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 operation  p. 127

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 operation  p. 127

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 operation  p. 127

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.

9.4.4  Nnef_MBSGroupMsgDelivery Service |R18|  p. 128

9.4.4.1  General  p. 128

Service description:
NF Service Consumer can use this service to request group message delivery or to modify or to cancel previously submitted group message delivery.

9.4.4.2  Nnef_MBSGroupMsgDelivery_Create service operation  p. 128

Service operation name:
Nnef_MBSGroupMsgDelivery_Create
Description:
This service is used by the NF Service Consumer to request group message delivery.
Inputs, Required:
Group Message Payload, MBS service area, Group Message Delivery Start Time, Stop Time, External Group Identifier, Notification Endpoint.
Inputs, Optional:
Target UE Classes (as defined in TS 26.502).
Outputs, Required:
Group Message Correlation ID, Delivery Status, service announcement information.
Outputs, Optional:
Cause, service area without MBS capability.

9.4.4.3  Nnef_MBSGroupMsgDelivery_Update service operation  p. 128

Service operation name:
Nnef_MBSGroupMsgDelivery_Update
Description:
This service is used by the NF Service Consumer to replace group message delivery.
Inputs, Required:
Group Message Correlation ID.
Inputs, Optional:
Group Message Payload, MBS service area, Group Message Delivery Start Time, Stop Time, Notification Endpoint, Target UE Classes (as defined in TS 26.502).
Outputs, Required:
Acceptance Status
Outputs, Optional:
Cause, service area without MBS capability.

9.4.4.3a  Nnef_MBSGroupMsgDelivery_Delete service operation  p. 128

Service operation name:
Nnef_MBSGroupMsgDelivery_Delete
Description:
This service is used by the NF Service Consumer to recall (or cancel) group message delivery.
Inputs, Required:
Group Message Correlation ID.
Inputs, Optional:
None.
Outputs, Required:
Acceptance Status.
Outputs, Optional:
Cause.

9.4.4.4  Nnef_MBSGroupMsgDelivery_StatusNotify service operation  p. 128

Service operation name:
Nnef_MBSGroupMsgDelivery_StatusNotify
Description:
This service is used by the NEF to notify the NF service consumers of the status of a group message delivery.
Inputs, Required:
Status Information, Notification Endpoint.
Inputs, Optional:
None.
Outputs, Required:
None.
Outputs, Optional:
None.

9.5  MBSF Services  p. 129

MBSF services are defined in TS 26.502.

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