Mobile radio communication system

Details Mobile radio communication system Mobile radio communication system

1995-04-21

1997-12-02

Tse, Young T.

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

375285, 375295, 375341, 455 68, 455127, 381 77, 395 224, H03M 1312, H04J 1300

Patent

active

056944292

ABSTRACT:
In a mobile radio communication system, at a transmitter side, when a sound-absent section is detected in sound data, transmission of the sound data is stopped, and instead, tail bits are transmitted. A transmission power is lowered to 0 (zero) or a given value other than 0 when the transmission of the tail bits is finished. The lowering of the transmission power is held until a sound-present section is detected. Convolutional encoding is effected to the sound data and the tail bits prior to transmission. At a receiver side, the variation in transmission power is monitored to control an operation of an associated component in response to the monitored power variation. Viterbi decoding is effected for decoding the convolutional code.

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