Page 367 - 5G Basics - Core Network Aspects

Core network aspects 1

3.1.9 denial of service [ITU-T X.800]: The prevention of authorized access to resources or the delaying of
time-critical operations.

3.1.10 Internet Protocol Television (IPTV) [ITU-T Y.1901]: Multimedia services such as
television/video/audio/text/graphics/data delivered over IP-based networks managed to support the
required level of QoS/QoE, security, interactivity and reliability.
3.1.11 mobility [b-ITU-T Q.1706]: The ability for the user or other mobile entities to communicate and
access services irrespective of changes of the location or technical environment.
3.1.12 multi-connection [ITU-T Y.2251]: The functionality which provides capability to the user equipment
(UE) and network to maintain more than one access network connection simultaneously.
NOTE 1 – All connections are coordinated to provide service to higher layer entities.
NOTE 2 – In a multi-connection communications at least one UE is required to be a multi-connection UE.

3.1.13 next generation network (NGN) [b-ITU-T Y.2001]: A packet-based network able to provide
telecommunication services and able to make use of multiple broadband, QoS-enabled transport
technologies and in which service-related functions are independent from underlying transport related
technologies. It enables unfettered access for users to networks and to competing service providers and/or
services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision
of services to users.
3.1.14 offline charging [ITU-T Y.2233]: Charging mechanism where charging information does not affect,
in real-time, the service rendered.
3.1.15 online charging [ITU-T Y.2233]: Charging mechanism where charging information can affect, in real-
time, the service rendered and therefore a direct interaction of the charging mechanism with
resource/session/service control is required.
3.1.16 service protection [ITU-T Y.1901]: Ensuring that an end-user can only acquire a service, and, by
extension, the content contained therein, that he or she is entitled to receive.
3.1.17 terminal device [ITU-T Y.1901]: An end-user device which typically presents and/or processes the
content, such as a personal computer, a computer peripheral, a mobile device, a TV set, a monitor, a VoIP
terminal or an audiovisual media player.
3.1.18 terminal device protection [ITU-T Y.1901]: Ensuring that a terminal device employed by an end-user
in the reception of a service can reliably and securely use content while enforcing the rights of use granted
for that content, and while physically and electronically protecting the integrity of the terminal device, and
the confidentiality of the content and critical security parameters not otherwise protected by encryption or
watermarking.
3.1.19 threat [ITU-T X.800]: A potential violation of security.

3.2 Terms defined in this Recommendation

This Recommendation defines the following term:
3.2.1 MC-Streaming (streaming service over multi-connection): Streaming service over multi-connection
provides multimedia features such as video/audio/text/graphics/data in real time supported by the required
level of QoS/QoE, security, interactivity and reliability.

4 Abbreviations and acronyms
This Recommendation uses the following abbreviations and acronyms:

AC-FE Application Control Functional Entity
ACK Acknowledgement
AN Access Network

ANI Application Network Interface

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