Method for introducing MBMS service identification

Abstract

A method for introducing MBMS service identification includes the step: UE distributes the RAB identification used for MBMS business; UE transmits the RAB identification used for MBMS business to SGSN; SGSN notifies the corresponding relation to RNC. The corresponding relation between the MBMS business and RAB identification can be known by UE, RNC and SGSN by the method of the invention that UE distributes the RAB identification used for MBMS business and transmit it to SGSN and the method of transmitting the mapping relation to RNC by SGSN. When the RNC is transmitting the MBMS data by PTP mode, the existing mechanism can be used to simplify the realization of the MBMS in the RNC device of PTP mode and quicken MBMS commercial process. When the RNC is notifying UE, MBMS business by DCCH, the modification for the existing aerial interface message can be avoided or reduced by using the RAB identification, and the unified processing mode of UE can be ensured. When existing RNC can not support the MBMS business, the device can made to have good post toward compatibility by directly using existing mode.

Description

technical field [0001] The invention relates to a wideband code division multiple access (hereinafter referred to as WCDMA) mobile communication system, in particular to a method for introducing a new multimedia broadcast and multicast service (hereinafter referred to as MBMS) identification. Background technique [0002] Multimedia Broadcast and Multicast Service (hereinafter referred to as MBMS) is a new service being standardized by the Third Generation Partnership Project (hereinafter referred to as 3GPP). The MBMS service is a one-way point-to-multipoint service. The biggest feature of this service is that it can effectively utilize wireless resources and network resources. Different from existing services, the MBMS service can be transmitted in two ways: point-to-point (hereinafter referred to as PTP) or point-to-multipoint (hereinafter referred to as PTM) on the air interface. [0003] figure 1 The MBMS system structure is described. The MBMS network structure is ba...

AI Technical Summary

Problems solved by technology

The information element "RAB ID" in these messages must exist, but currently no NSAPI and RAB ID are allocated for MBMS services; at the same time, when MBMS services are transmitted in PTP mode, it affects the processing of existing UEs

[0031] (2) In the existing RNC equipment, different services are identified according to the RAB mark in the protocol. If the transmission mode of the MBMS service is PTP, there is no RAB mark corresponding to the MBMS service for the MBMS service, which will cause interference to the existing There are a lot of changes to the equipment

[0032] (3) If the RNC does not support the MBMS service, when the SGSN uses the Rel99 / Rel4 or Rel5 process to establish the Iu user plane for the UE, there is no corresponding NSAPI available, and there is no correspondence between the NSAPI and the RAB identifier, and the UE cannot distinguish between the corresponding The business corresponding to the carried data

Images