Page 371 - 5G Basics - Core Network Aspects

Core network aspects 1

6.4 Use case of MC-Streaming

MC-Streaming can be utilized in scenarios, such as:
1) Traditional Internet protocol television (IPTV). Subscribers can receive multimedia information using
different kinds of connections. This scenario includes linear TV, on demand services (i.e., video on
demand and content on demand). Subscribers can playback the content after its initial transmission.
Subscribers can also pause, rewind or forward stored content.
2) Pushing interaction information. MC-Streaming providers can push some content towards the
subscribers (e.g., most popular programme guides, advertisements, subscribers' on-demand
programmes, etc.). Subscribers can also share information of interest, e.g., programme, image, data
and audio.

7 Network and MUE requirements

7.1 Network transport capability requirements

1) MC-Streaming is recommended to support and use connection related information
(e.g., bandwidth, subscriber's preferences, QoS, etc.) to select one or more appropriate connections
to deliver multimedia content.
2) MC-Streaming can optionally support maintaining simultaneous CS and PS applications over
different access technologies.
7.1.1 Admission control

1) MC-Streaming is required to support authentication and authorization of subscribers to the utilized
access network(s).
2) MC-Streaming can optionally support access network selection, e.g., according to QoS
requirements, network status, UE status, subscriber's preferences or operator's policies. In this
latter case, the selection mechanism is recommended to provide consistent QoS for subscribers'
experience.

7.1.2 Transport control
1) MC-Streaming is recommended to support delivery of multimedia content over different access
networks simultaneously, e.g., 2G/3G/WLAN, especially when multi-connection capability is
supported by underlying network elements.
2) MC-Streaming is recommended to provide efficient usage of multiple access networks.
3) MC-Streaming is recommended to coordinate the transmission of multimedia content over multiple
networks.
7.1.3 Mobility support

1) MC-Streaming can optionally support service continuity in case multiple access networks are
connected to the UE.
2) MC-Streaming can optionally provide the same service experience when the subscriber roams into
another operator's network.
3) MC-Streaming can optionally support switching from one subscriber's UE to another.

7.1.4 Security support
1) MC-Streaming is required to support authentication and authorization of the subscriber and her/his
UE.
2) MC-Streaming is required to prevent unauthorized usage.
3) MC-Streaming is required to deliver content only to appropriate subscribers.
4) MC-Streaming can optionally identify and block illegal or unwanted traffic by itself, or rely on other
network elements' support.

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