3GPP Work Item description

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

Feature: DELETED- Covered by SI - MBMS Enhancements

In the near future increasing deployment of MBMS services in operator network is foreseen. On the other hand, when users begin to benefit from MBMS, they soon will expect more stable services and more access alternatives for accessing them, e.g. via IP accesses such as WLAN.

From operators’ point of view it would also be desirable to profit from the radio-resource efficient broadcast / multicast mechanisms provided by MBMS transport services for IMS based services. Examples could be value-added services like e-learning or PoC-enhancements. Additionally, MBMS should provide higher bit-rates for applications like digital TV etc.

For these purposes, although the basic functionality already exists in Rel-6 MBMS, additional requirements are necessary to enhance the current MBMS in Rel-7 and enable IMS to use MBMS transport.

The objective of this work item is to analyze the additional requirements proposed here and provides the required changes and additions to the current SA1 specifications. New requirements should be carefully considered regarding their effects on Rel-6 terminals and MBMS Rel 6 bearer service to ensure backwards compatibility.

    §         Enabling IMS to use the MBMS bearer service;

    §         MBMS reception over IP accesses, e.g. I-WLAN;

    §         Higher MBMS bit-rate services (The impact on the throughputs in the RAN should be investigated).

    §         Support for adaptation of MBMS to the QoS resources provided by the access network(s).