Page 398 - 5G Basics - Core Network Aspects

1 Core network aspects

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.

3.1.7 next generation network (NGN) [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.
3.1.8 offline charging [ITU-T Y.2233]: Charging mechanism where charging information does not affect,
in real-time, the service rendered.

3.1.9 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.
3.1.10 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-eMMTel (eMMTel service over multi-connection): A service over multi-connection which
provides real-time bidirectional conversational transfer of multiple media types (e.g., audio, video, data)
between two or more terminals simultaneously.

4 Abbreviations and acronyms
This Recommendation uses the following abbreviations and acronyms:
3G 3rd Generation

AAA Authentication, Authorization, Accounting
CDR Charging Data Record

CS Circuit Switched
eMMTel Enhanced Multimedia Telephony Services

ID Identification
IM Instant Messenger

IM-FE Instant Message Functional Entity
IMS IP Multimedia Subsystem
IP Internet Protocol

MAS-F Multi-connection Application Support Function
MCF Multi-connection Control Function

MC-FE Multi-connection Coordination Functional Entity
MMF Multi-connection Media Function
MMS Multimedia Messaging Service

MMTel Multimedia Telephony Services
MPC-FE Multi-connection Policy Control Functional Entity

MR-FE Multi-connection Registration Functional Entity
MSISDN Mobile Subscriber International ISDN/PSTN number

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