Apparatus and method for controlling transmission power in a cel

Details Apparatus and method for controlling transmission power in a cel Apparatus and method for controlling transmission power in a cel

1995-09-08

1998-02-03

Eisenzopf, Reinhard J.

Telecommunications

Transmitter

With feedback of modulated output signal

455103, H01Q 1112, H04B 104

Patent

active

057155267

ABSTRACT:
An apparatus and method for controlling a final transmit power, y, of a base station in a cellular communications system that has several channels. The base station has a transmit power tracking gain, y', and a radio frequency transmit power, w. The apparatus comprises channel elements for calculating expected powers, P.sub.k,a -P.sub.k,i, each of which corresponds to a channel. The apparatus also comprises a transceiver system controller (BTSC) for generating a desired output power, y.sub.d, of the base station, including an adder for summing the expected powers. The apparatus also includes a transmit power detector for measuring y to obtain a measured transmit power. The apparatus further comprises a radio frequency interface card (RFIC) for generating y'. Finally, the apparatus includes a gain unit for processing y' and w to obtain the final transmit power, y.

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