DUPLEX OPERATION IN A CELLULAR COMMUNICATION SYSTEM

摘要

A cellular communication system comprises a first base station (205) serving at least a first user equipment The base station (205) comprises functionality (701, 703) for transmitting a base station duplex capability message to user equipments using a transmission format which is common to a plurality of duplex modes. The first user equipment (201) comprises a transceiver which receives the base station duplex capability message. A RACH characteristics processor determines at least one transmit characteristic for an access message in response to the base station duplex capability message and a RACH transmit controller controls the transmission of an access message to the first base station (205) in response to the at least one transmit characteristic.