Patent ID: 6131035
Filing Date: 2000-10-10
Classification: H04B,H04W

Abstract:
A communication channel assigning system, comprising:a plurality of radio base stations disposed in a plurality of radio zones;a plurality of mobile stations for communicating with the base stations using communication channels;a radio base station controlling unit for controlling said radio base stations;a transmitting unit and a receiving unit for transmitting data and receiving data from/to said radio base stations in said mobile stations corresponding to a code division multiple-access radio modulation system;an assigning unit for assigning a communication channel to the data transmitted by said transmitting unit and for using a plurality of communication channel layers of communication channels with a plurality of bandwidth in the same frequency band;a measuring unit for measuring the interference power amount of each frequency band;an estimating unit for estimating the transmission power amount necessary for the needed service type when a call newly generates for a service; anda determining unit for determining a frequency band with the minimum division loss corresponding to the interference power amount of each frequency band measured by said measuring unit and the transmission power amount estimated by said estimating unit, and assigns the newly generated call to the determined frequency band.