Patent ID: 6539233
Filing Date: 2003-03-25
Classification: H04W

Abstract:
A call control method in mobile communication in which communication is carried out through a radio channel between a mobile terminal and each of a plurality of radio base stations and each radio base station at first carries out notification of information through a pilot channel to said mobile terminal moving into a radio zone thereof, wherein:each of said radio base stations carries out: a step of judging whether or not a downlink communication traffic is great or small; a step of storing transmission power level information having a value greater than a pilot channel transmission power level actually transmitted in case where the communication traffic is small, or storing the transmission power level information having a value smaller than the pilot channel transmission power level actually transmitted in case where the downlink communication traffic is great; and a step of carrying out transmission of said transmission power level information on said pilot channel; said mobile terminal carrying out: a step of receiving said pilot channel from each of said radio base stations; a step of calculating a difference between a reception field strength of said pilot channel of each of said radio base stations and the transmission power level information received; a step of detecting from the difference a particular radio base station of a minimum propagation loss; and a step of originating a call to said particular radio base station of a minimum propagation loss thus detected.