Reverse link, transmit power correction and limitation in a radi

Details Reverse link, transmit power correction and limitation in a radi Reverse link, transmit power correction and limitation in a radi

1994-02-28

1995-09-19

Urban, Edward F.

Telecommunications

Transmitter and receiver at same station

Transceiver controlling a separate transceiver or receiver

455 89, 455126, 455127, 4552342, 330129, H04B 140, H04B 104, H04B 106

Patent

active

054524733

ABSTRACT:
The process and apparatus of the present invention limits the output power of a radiotelephone, operating in a cellular system in the preferred embodiment. This ensures the transmitted sidebands and synthesizer phase noise remains within a certain specification. This is accomplished by power detection and a correction accumulator that together generate a gain control signal by limiting the gain adjustment to a maximum value, even when the cell site communicating with the radiotelephone is sending power turn-up commands to the radiotelephone. This process includes dynamically correcting the output level of the transmitter due to gain variations in the transmitter stages or gain control elements.

REFERENCES:
patent: 4285065 (1981-08-01), Priniski
patent: 5056109 (1991-10-01), Gilhousen
patent: 5199045 (1993-03-01), Kato
patent: 5267262 (1993-11-01), Wheatley, III
patent: 5297161 (1994-03-01), Ling

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