3GPP Work Item description

This page contains informal descriptive text only.  See master WID page for further details.

Feature: IMS Support of Conferencing and Messaging Group Management

In Release 5, the IMS was defined to support IP Multimedia services.  The feature set in Release 5 provides a basis for IP Multimedia support.  During release 6, additional applications were developed, but due to IETF dependencies, such applications could not be completed in release 6

The objectives of this work item are to finalise Stage 3 work on postponed Release 6 features for IP multimedia applications in accordance with existing release 6 stage 1 requirements.

     §        Conference control for IM CN subsystem conferencing
This item is to provide any additional specification at the Ut reference point that may be necessary in support of conference control.
Note: There is ongoing work in the IETF XCON group that needs to be taken into account in conjunction with this area. 

    §        Conferencing Policy control for IM CN subsystem
This item is to provide any additional specification at the Ut reference point that may be necessary in support of conference policy control.
Note: There is ongoing work in IETF SIMPLE and XCON groups that needs to be taken into account in conjunction with this area. The need for a standardized interface separate from the conference control is still being discussed in IETF XCON.

    §        Floor control for IM CN subsystem conferencing
This item is to provide any additional specification that may be necessary in support of floor control, and the appropriate SDP and conference policy control to support provision of a floor control server.
Note: There is ongoing work in IETF XCON and MMUSIC groups that needs to be taken into account in conjunction with this area.

    §        Extensions to conferencing related SIP procedures
This item should take into account extensions to the conference package being defined to take account of the XCON work, and to provide any additional specification that may be necessary to enhance and extend SIP procedures that are related to IM CN subsystem conferencing (e.g. SIP URI list service) to fulfil existing release 6 stage 1 requirements.
Note: There is ongoing work in IETF XCON group that needs to be taken into account in conjunction with this area.

    §        IM CN subsystem Group management for messaging
This item is to provide any additional specification at the Ut reference point necessary to support the IM CN subsystem capabilities to facilitate group-enabled services (e.g., chat). Mechanisms should cover both page-mode messaging and session-mode messaging.
Note: There is ongoing work in IETF XCON and SIMPLE groups that needs to be taken into account in conjunction with this area.

Service Aspects:

Service requirements are covered by existing release 6 stage 1 specifications.