CELL CHANGING METHOD IN A MOBILE COMMUNICATION SYSTEM SUPPORTING A BROADCASTING SERVICE, SPECIALLY IN REFERENCE TO PERFORMING AN ATTACH PROCEDURE IN ACCORDANCE WITH A CELL CHANGE BY CONSIDERING AN RRC STATE OF A MOBILE STATION AND MBMS-RELATED INFORMATION OF A TARGET CELL

摘要

Purpose: when same MBMS, which is received from, includes the target cell in the 2nd RNC (radio network controller), an one of mobile communication system of radio-broadcasting service cell change method is being supported to be provided to the MBMS- relevant informations for the collect call of a target cell, gathering information to the first RNC is transmitted, so that compacting is used for a unnecessary program of cell change. Construction: a UE (501) report is moved to a SRNC (Serving RNC) (503) for a target cell to UE (501) by a unit update message (510). SRNC (503) transmits a RL (Radio Link) and establishes request message to a DRNC (Drift Radio Network Controller) (502) (511). DRNC (502) notifies that the SRNC (503) of a MBMS additional processes is successfully, and (513) are set in a RL. As unit update message (514) are responded, SRNC (503) transmits a cell update and confirms message to UE (501). UE (501) receives MBMS data according to MBMS expected from one by DRNC (502) from SRNC (503) (516).