INFORMATION DISTRIBUTION METHOD, MOBILE COMMUNICATION SYSTEM, RADIO NETWORK CONTROL DEVICE, RADIO BASE STATION DEVICE, AND OPERATION CONTROL PROGRAM

摘要

Quick response and network resource use efficiency are improved. In an information distribution method of a mobile communication system for transferring MBMS information to a radio base station device via a radio network control device and, in the radio base station device, broadcasting or multicasting the MBMS information to plural cells under the control thereof, both one common information transfer path from the radio network control device to the radio base station device and radio information transfer paths from the radio base station device to the respective cells are established in advance before the start of an MBMS session, and at the start of the MBMS session, a cell targeted for actual distribution is discriminated and indicated to the radio base station device by the radio network control device.