Apparatus and method for controlling transmission power in a cellular communications system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01Q-011/12
H04B-001/04
출원번호
US-0525899
(1995-09-08)
발명자
/ 주소
Weaver
Jr. Lindsay A.
Boesel Robert Wright
출원인 / 주소
Qualcomm Incorporated
대리인 / 주소
Miller
인용정보
피인용 횟수 :
169인용 특허 :
0
초록▼
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 calculati
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.
대표청구항▼
[ We claim:] [1.] An apparatus for controlling a power of a final output signal, w.sub.o, of a base station in a cellular communications system, said base station providing communication on a plurality of channels, said base station having a transmit power tracking gain, y', and a radio frequency tr
[ We claim:] [1.] An apparatus for controlling a power of a final output signal, w.sub.o, of a base station in a cellular communications system, said base station providing communication on a plurality of channels, said base station having a transmit power tracking gain, y', and a radio frequency transmit signal, w, said apparatus comprising:a plurality of channel elements for calculating a plurality of expected powers, each of said plurality of expected powers corresponding to one of said plurality of channels;a base station transceiver system controller (BTSC) for generating a desired output power, y.sub.d, of said base station, said BTSC based on said plurality of expected powers;a transmit power detector for measuring a final transmit power of said final output signal, w.sub.o ;a radio frequency interface card (RFIC) for generating said transmit power tracking gain, y', by processing said final transmit power and said desired output power, y.sub.d, to obtain a control input, u, said RFIC comprising a transmit filter for filtering said control input, u, to obtain said transmit power tracking gain, y'; anda gain unit for processing said transmit power tracking gain, y', generated by said RFIC and said radio frequency transmit signal, w, to obtain said final output signal, w.sub.o.
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