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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0020049 (1998-02-06) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 328 인용 특허 : 141 |
A method for ongoing power control for a communication station with a multiple antenna array, the power control using a method for signal quality estimation applicable for angle modulated signals. One aspect of the ongoing power control method is applicable for the uplink and includes separating the
A method for ongoing power control for a communication station with a multiple antenna array, the power control using a method for signal quality estimation applicable for angle modulated signals. One aspect of the ongoing power control method is applicable for the uplink and includes separating the joint determination of a receive weight vector and ongoing power control into a receive weight vector determining part and a separate transmit power adjustment part. In one embodiments, The ongoing power control method for the downlink includes separating the joint determination of a receive weight vector and ongoing power control into a receive weight vector determining part and a separate transmit power adjustment part. The method starts with one part, for example transmit power assignment. Receive weight vector determination is carried out with this assigned transmit power and the new weights used. An estimate of the resulting received signal quality is obtained and used for new ongoing power adjustment. Another aspect is applicable for the downlink and includes one aspect of the ongoing power control method is applicable for the uplink and includes separating the determination of a complete transmit weight vector including the vector of relative transmit weights and the scaling to use with the relative transmit weights into a part for determining a set of relative transmit weights and a separate transmit power adjustment part that determines the scaling factor.
1. A method for ongoing power control for uplink communications between one or more remote transmitters and a communication station for receiving an uplink signal, the communication station including an array of antenna elements, each antenna element coupled to an associated receive apparatus, and a
1. A method for ongoing power control for uplink communications between one or more remote transmitters and a communication station for receiving an uplink signal, the communication station including an array of antenna elements, each antenna element coupled to an associated receive apparatus, and a processor for spatial processing the set of signals from the set of receive apparatuses, the spatial processing forming the uplink signal according to a receive weight vector of receive weights, the method comprising, for a particular remote transmitter(a) setting up an initial power assignment for the particular remote transmitter on a conventional channel and transmitting a particular uplink signal from the particular remote transmitter on the conventional channel; (b) determining a particular receive weight vector for communicating with the particular remote transmitter on a spatial channel of the conventional channel; (c) receiving the particular uplink signal at the antenna elements and associated receive apparatuses as a set of received signals and spatially processing the received signals with the particular receive weight vector to form a particular received signal; (d) estimating the quality of the particular received signal; (e) determining an updated power assignment for the particular remote transmitter, the power assignment determination using the received signal quality estimate; and (f) applying the updated power assignment at the particular remote transmitter, the applying including transmitting a new uplink signal.
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