TDMA radio communication system

Details TDMA radio communication system TDMA radio communication system

1995-06-06

1998-01-20

Olms, Douglas W.

Multiplex communications

Channel assignment techniques

Using time slots

370503, 455 673, 375358, H04J 316

Patent

active

057107726

ABSTRACT:
A mobile station sends a speech signal to a radio base station or, in the absence of speech signals, sends back a sync signal from the radio base station. The radio base station detects whether the signal received from the mobile station is a speech signal or the sync signal it sent. If a speech signal is received, it performs usual processing for speech signals or, if the sync signal is received, judges the line quality according to this sync signal.

REFERENCES:
patent: 3789142 (1974-01-01), Shimasaki et al.
patent: 4903323 (1990-02-01), Hendershot
patent: 5239557 (1993-08-01), Dent
patent: 5278826 (1994-01-01), Murphy et al.
patent: 5341379 (1994-08-01), Crisp
patent: 5383221 (1995-01-01), Akita et al.
patent: 5423071 (1995-06-01), Hanninen
patent: 5533028 (1996-07-01), Hita de la Torre et al.

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