Patent ID: 6307865
Filing Date: 2001-10-23
Classification: H04N,H04W

Abstract:
A radio communication method for communication between a base station connected to an analog network and a mobile station connected to said base station by a radio circuit, comprising:receiving an analog signal from said analog network;determining if said analog signal is a modem signal or a speech signal, performing PCM/CODEC processing of the analog signal determined to be a modem signal to produce a PCM signal;separating said PCM signal into a plurality of ADPCM signals; said ADPCM signals having a transmission speed lower than a transmission speed of said PCM signal;allocating said ADPCM signals to time slots by channel CODEC processing;transmitting said channel CODEC processed signals through said radio circuit; anddemodulating at said mobile station the data received from said base station into an analog signal by a processing procedure reverse to the processing procedure by said base station.