Gain control in a TDMA radio-telephone system

Details Gain control in a TDMA radio-telephone system Gain control in a TDMA radio-telephone system

1992-01-14

1994-07-19

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 953, 375 98, 4552341, 4552451, H04B 726

Patent

active

053316380

ABSTRACT:
In a radio-telephone system based on time-division multiple access, the AGC function of the receiver can be controlled so as to be approximating the actual value at the beginning of the reception timeslot. The field strength of a specific signal transmitted by a base station during a timeslot preceding a concerned reception timeslot is measured, the specific signal having a power the ratio of which to the power of the concerned signal is presumed. On the basis of this measured field strength and the presumed ratio, the required AGC gain of the AGC amplifiers is calculated and the AGC gain is set according to the calculated gain for the time of the concerned reception timeslot.

REFERENCES:
patent: 4656630 (1987-04-01), Miyo
patent: 4757502 (1988-07-01), Meuriche et al.
patent: 5119508 (1992-06-01), Shamasundara
patent: 5184349 (1993-02-01), Riordan
Proceedings of the 1990 Bipolar Circuits and Technology Meeting, Sep. 1990, pp. 248-251, IEEE, I. A. Koullias et al., "A 100 MHz IF Demodulator for GSM Cellular Radio Mobile Terminals".

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