METHOD TO SELECT A DEDICATED CONTROL CHANNEL AND THE ASSOCIATED BASE STATION IN A CELLULAR MOBILE RADIO SYSTEM

摘要

The present invention relates to a method for selecting one channel among a plurality of dedicated control channels DCCH1 through DCCH21 transmitted from a plurality of base stations B1 through B2 in a mobile radio system at a mobile radio station. Within the mobile station is an equalizer to compensate for the multipath transfer characteristics of the wireless medium between the mobile station and a given base station. This equalizer consumes power and is not used if not needed. In accordance with this method, an investigation is performed at the mobile station as to whether the equalizer can be disconnected during the call initialization from the mobile station to the base station. The signal quality of the dedicated channel DCCH1 with the highest signal strength is measured without equalizer. If this signal quality cannot be tolerated, a new detection is made using the equalizer. Then, if the signal quality can be tolerated, the base station B2 transmitting another control channel if the other detection is done without equalizer on the dedicated control channel DCCH2 having the next highest signal strength and the detection indicates an acceptable signal quality. Is selected by the mobile station for another call progress.