Page 400 - 5G Basics - Core Network Aspects

1 Core network aspects

6 Description of service features

6.1 Service definition

MMTel is a global standard based service on NGN/IMS, offering converged, fixed and mobile real-time
multimedia communication using the media capabilities such as voice, real-time video, text, file transfer and
sharing of pictures, audio and video clips.

eMMTel is a set of mash-up services; it allows the combination of several services. eMMTel provides a new
user experience over a multi-connection network; e.g., enriched call, enhanced file transfer, enhanced
content sharing and enhanced messaging.

6.2 Enriched call

Enriched call can be split into two media load paths: one is the path carrying the video traffic load and the
other is the path carrying the voice traffic load. They can be provided by the enhanced multimedia
communication services, and are carried by the operator's existing network (CS or PS) through the PS
network and CS network, respectively. The signalling path based on multi-connection architecture provides
technical implementations for the connection of the multimedia bearer path establishment, modification,
release, etc.

6.3 Enhanced file transfer

The enhanced file transfer function allows the user to exchange different types of files during an ongoing or
not ongoing session.

When the user receives the offered files, he or she is required to accept or reject them. The acceptance
procedure shall include an indication about the receiving file size and type. The user shall have the ability to
save the transferred files.
a) Enhanced file transfer related to the call:

During the ongoing call, this service provides the user with a file transfer service simultaneously. The
call media and file transfer media are transmitted through different networks/accesses (e.g., the call
media transfer through the 2G and file transfer media through 3G or WLAN). The CS call release
terminates the file transfer session, but the file transfer session release does not affect the 2G-
network call.
b) Enhanced file transfer unrelated to the call:

This function provides the user with a file transfer service independent of the call on multiple
connections, e.g., via WLAN and 3G.

6.4 Enhanced content sharing
Enhanced content sharing is a service that provides the user with the ability to share different types of
content, e.g., photo, video, music, etc.
Enhanced content sharing includes two scenarios: content sharing during a voice call and content sharing
without a voice call.

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