Patent ID: 6526036
Filing Date: 2003-02-25
Classification: H04B,H04J

Abstract:
A mobile communication system, comprising:a plurality of mobile stations and at least one base station, said mobile stations and said base station being radio-connected to each other using a multiple access system of a time-slot-shared and frequency-channel-shared type having a TDMA signal, and either a time-slot-shared and frequency-channel-shared time-divided CDMA signal, or a time-slot-shared time-divided CDMA signal, wherein at least some of said plurality of said mobile stations include a high-speed data transmitter that has a high-speed data transmission function and are radio-connected to said at least one base station with a high-speed data channel, and wherein said communication system includes a single communication channel between said base station and at least one high-speed data transmission function mobile station in said mobile communication system is constituted as an asymmetric channel using said high-speed data channel for high-speed data transmission, and using one of said TDMA signal, time-slot shared and frequency-channel-shared time-divided CDMA signal or time-slot-shared time-divided CDMA signal for communication signal transmission other than high-speed data transmission, such that an information quantity in a down-link from said base station to one of said high-speed data transmission function mobile stations, and an information quantity in an up-link from said one mobile station to said base station are different from each other.