Apparatus and method for controlling transmission power in a cellular communications system
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United States of America Patent
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Feb 3, 1998
Grant Date -
N/A
app pub date -
Sep 8, 1995
filing date -
Sep 8, 1995
priority date (Note) -
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status (Latency Note)
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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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