A.4 Transparent Delivery

26.3483GPPNorthbound Application Programming Interface (API) for Multimedia Broadcast/Multicast Service (MBMS) at the xMB reference pointRelease 17TS

This clause illustrates the various xMB-U options for Transparent Delivery Mode. The BM-SC handles the streams in a transparent manner.

Figure A.4-1 illustrates a setup of Transparent Delivery with Proxy. The xMB-C is used to provide the necessary information to the BM-SC.

Figure A.4-1: Transparent Delivery with Proxy mode

The following Session Properties allow the configuration of this xMB-U mode:

– Session Type is set by the Content Provider to Transport-Mode.

– Delivery Mode Configuration for user plane (Session Type specific property) is set by the Content Provider to Proxy.

– Session Description Parameters for User Plane (Session Type specific property) is set by the Content Provider and contains the UDP flow mapping descriptions.

– When Session Announcement Mode (Session Type specific property) is set by the Content Provider to SACH, the BM-SC will add according session description into the SACH. In this case the MBMS Client (cf. TS 26.347) will offer the service to an application.

– When Session Announcement Mode (Session Type specific property) is set by the Content Provider to Content Provider then the Content Provider is responsible to announce services to UEs (e.g. using GC1). The BM-SC provides at least the TMGIs as value of the Delivery Session Description Parameters property.

Figure A.4-2 illustrates a setup of Transparent Delivery with Forward-Only. The xMB-C is used to provide the necessary information to the BM-SC.

Figure A.4-2: Transparent Delivery with Forward-Only

The following Session Properties allow the configuration of this xMB-U mode:

– Session Type is set by the Content Provider to Transport-Mode.

– Delivery Mode Configuration for user plane (Session Type specific property) is set by the Content Provider to Forward-only.

– Session Description Parameters for User Plane (Session Type specific property) is set by the Content Provider and contains the UDP flow mapping descriptions.

– When Session Announcement Mode (Session Type specific property) is set by the Content Provider to SACH, the BM-SC will add according session description into the SACH. In this case the MBMS Client (cf. TS 26.347) will offer the service to an application.

– When Session Announcement Mode (Session Type specific property) is set by the Content Provider to Content Provider then the Content Provider is responsible to announce services to UEs (e.g. using GC1). The BM-SC provides at least the TMGIs as value of the Delivery Session Description Parameters property.