1. Specifications
  2. High-level architecture
    1. High-level architecture: 5G Downlink Media Streaming (5GMSd) over 5G Multicast Broadcast Services (MBS)
  3. Features under implementation
    1. MBS development over Open5GS

This page contains information such as the specifications within the scope of the tools, high-level architecture, APIs under implementation,…

Specifications

Visit the Standards repository for more details on the specifications within the scope of the tools.

High-level architecture

  • Check here to access the repositories for 5G Multicast Broadcast Services (MBS)
  • Check here to access the repositories for 3GPP RAN and Core Platforms
  • Check here to access the repositories for 5G Media Streaming

Features under implementation

MBS development over Open5GS

The 5G-MAG Reference Tools for MBS currently target:

  • Multicast transport over N6mb (from AF to MB-UPF).
  • Shared delivery on the 5G Core (from MB-UPF to gNBs).
  • Point to Multipoint (PTM) delivery on RAN (from gNBs to UE).

The following features are supported:

  • MB-SMF TMGI Service API (Following 3GPP TS 29.532 - Release 17.4.0)
    • TMGI Allocate Service operation
    • TMGI Deallocate Service operation
  • MB-SMF MBS Session Service API (Following 3GPP TS 29.532 - Release 17.4.0)
    • MBS Session Create Service operation
    • MBS Session Release Service operation
  • MB-SMF PFCP Session Establishment extensions (Following 3GPP TS 29.244 - Release 17.9.0)
    • PFCP Session Establishment Request extensions
  • MB-UPF PFCP Session Establishment extensions (Following 3GPP TS 29.244 - Release 17.9.0)
    • PFCP Session Establishment Response extensions

The following features are not yet supported:

  • AMF MBS Broadcast Service API (Following 3GPP TS 29.518 - Release 17.11.0)
    • MBS Broadcast ContextCreate Service operation
    • MBS Broadcast ContextRelease Service operation
  • AMF NGAP extensions (Following 3GPP TS 38.413 - Release 17.6.0)
    • BROADCAST SESSION SETUP REQUEST
  • gNB NGAP extensions (Following 3GPP TS 38.413 - Release 17.6.0)
    • BROADCAST SESSION SETUP RESPONSE
  • NRF NFDiscovery Service API extensions (Following 3GPP TS 29.510 - Release 17.11.0)
    • MB-SMF TMGI Service API extensions
    • MB-SMF MBS Session Service API extensions
    • AMF MBS Broadcast Service API extensions