Patent ID: 6477159
Filing Date: 2002-11-05
Classification: H04B,H04W

Abstract:
A mobile communication system comprising:a mobile communication network; and a mobile terminal device which performs communications with said mobile communication network, said mobile communication network including a plurality of base stations and a base station control equipment by a code division multiple access (CDMA) system, wherein said mobile terminal comprises: a call connection requesting part for transmitting, through a predetermined control channel, a call connection request signal by adding specific information provided for said mobile terminal; a transmitting part for diffusing and modulating a transmitting signal of a reverse channel transmitted from said mobile terminal to each of said base stations based on a transmission diffusing code specified by said specific information provided for said mobile terminal; and a receiving part for oppositely-diffusing and demodulating a received signal of a forward channel transmitted from each of said base stations to said mobile terminal based on a receiving oppositely-diffusing code specified by said specific information provided for said mobile terminal; and wherein said mobile communication network further comprises: a translating part for translating said specific information provided for said mobile terminal, which is contained in said call connection request signal received through said control channel, and extracting a diffusing code used for each of said reverse channel and forward channel for said mobile terminal; a transmitting part for diffusing and modulating a transmitted signal based on said forward channel transmission diffusing code extracted by said translating part; and a receiving part for oppositely-diffusing and demodulating a received signal based on said reverse channel receiving oppositely-diffusing code extracted by said translating part.