ATM transmission method having silence compression controlling function and system transmitter and receiver using the method

摘要

PCT No. PCT/JP96/02438 Sec. 371 Date Nov. 5, 1997 Sec. 102(e) Date Nov. 5, 1997 PCT Filed Aug. 30, 1996 PCT Pub. No. WO97/08871 PCT Pub. Date Mar. 6, 1997An ATM transmission system which transmits voice data in an asynchronous transfer mode (ATM). It implements compression of a mute section over a channel by detecting the mute section of a call and by physically suppressing its transmission over the channel as an ATM cell. A transmitting side detects the mute section, generates vocal/mute information, and generates a mute start cell and a mute end cell. A receiving side generates a mute section at a fixed interval when receiving the mute start cell, and returns to a normal receiving mode of a speech spurt cell immediately when receiving the mute end cell. The suppression of the mute section makes it possible to reduce the occupied bandwidth, and to increase the channel efficiency.