Radio telephone using received signal strength in controlling tr

Details Radio telephone using received signal strength in controlling tr Radio telephone using received signal strength in controlling tr

1990-09-24

1992-07-07

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

With control signal

455 671, 455 73, 455126, 455127, H04B 100

Patent

active

051290987

ABSTRACT:
A radio telephone uses a signal indicating the strength of received communication signals as a measure of prevailing signal propagation conditions to control the gain of a power amplifier in its transmitter. Where conditions are favorable, the gain can be reduced without deleterious effects on transmitted signals, and with a resulting savings in power drain on the radio telephone's power supply (e.g., batteries). In this way, talktime on a single battery charge can be significantly lengthened. Where conditions are adverse, e.g., at outlying or fringe areas of a cellular telephone system of which the radio telephone is a station, the gain can be increased to produce stronger transmitted signals, at times extending the effective coverage area of such systems. Preferably, the output of the power amplifier remains at all times within a power range prescribed by applicable standards, and is increased or decreased within the power range in accordance with prevailing conditions indicated by the received signal strength signal.

REFERENCES:
patent: 4373206 (1983-02-01), Suzuki et al.
patent: 4475010 (1984-10-01), Huensch et al.
patent: 4495648 (1985-01-01), Giger
patent: 4556760 (1985-12-01), Goldman
patent: 4608711 (1986-08-01), Goldman
patent: 4760347 (1988-07-01), Li et al.
patent: 4777653 (1988-10-01), Bonnerot et al.
patent: 4811421 (1989-03-01), Havel et al.
patent: 4870698 (1989-09-01), Katsuyama et al.
patent: 4870699 (1989-09-01), Garner et al.
patent: 4885798 (1989-12-01), Jinich et al.

Affiliated with

Also associated with

Rating

Radio telephone using received signal strength in controlling tr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio telephone using received signal strength in controlling tr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio telephone using received signal strength in controlling tr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1837077