Page 369 - 5G Basics - Core Network Aspects

Core network aspects 1

SSL Security Socket Layer

SSO Single Sign On
TV Television

UE User Equipment
VoD Video on Demand

WLAN Wireless LAN

5 Conventions

In this Recommendation:
The keywords "is required to" indicate a requirement which must be strictly followed and from which no
deviation is permitted if conformance to this Recommendation is to be claimed.
The keywords "is prohibited from" indicate a requirement which must be strictly followed and from which
no deviation is permitted if conformance to this Recommendation is to be claimed.
The keywords "is recommended" indicate a requirement which is recommended but which is not absolutely
required. Thus this requirement need not be present to claim conformance.

The keywords "is not recommended" indicate a requirement which is not recommended but which is not
specifically prohibited. Thus, conformance with this specification can still be claimed even if this requirement
is presented.
The keywords "can optionally" indicate an optional requirement which is permissible, without implying any
sense of being recommended. This term is not intended to imply that the vendor's implementation must
provide the option and the feature can be optionally enabled by the network operator/service provider.
Rather, it means the vendor may optionally provide the feature and still claim conformance with the
specification.

6 Service definition and general requirements

6.1 Service definition

MC-Streaming (streaming service over multi-connection) is a streaming service which is supported by the
multi-connection architecture to provide multimedia service features such as
video/audio/text/graphics/data in real time and provides the required level of QoS/QoE, security,
interactivity and reliability to its users.
The terms MUE and UE are used in this Recommendation to distinguish full support of MC-Streaming by the
multi-connection architecture and the MC-Streaming functional elements, or only required support of MC-
Streaming by any UE accessing the multi-connection network streaming services.
Different from traditional streaming services over single connection environments, MC-Streaming provides
more features and better experience in a multi-connection environment, e.g., smoother stream playback
with broader bandwidth, stream composition from different sources, stream decomposition to multiple
devices, service continuity by transferring data flows among multiple network accesses, etc.

6.2 General requirements
The general requirements of MC-Streaming can be classified into four categories: multimedia content,
interaction, QoS/QoE and utilization of MC-Streaming.

6.2.1 Multimedia content requirement
1) MC-Streaming has all the features of current streaming services. Various kinds of multimedia
content (i.e., video/audio/text/graphics/data) can be rendered at the same time and in real time.

359