SUBSEQUENT FRAME VARIABLE DATA RATE INDICATION METHOD FOR VARIOUS VARIABLE DATA RATE SYSTEMS

摘要

In the synchronous fixed frame boundary system with a variable transmission rate, the transmitter 10 inserts the indication of communication speed of the next frame in the current frame. Station modem (station modem) when 18 is to be assembled to the current frame for encoding, station modem 18 is the next frame based on the information in the appropriate communication rate for the next frame from the vocoder 22 and a CPU (20) a rate indicator inserted on. Receiver 30 side, reception decoding, rather than multiple times to determine the appropriate transmission rate for all frames station modem 38 is to find the speed of the best frame, and each frame.