폐쇄루프 피드백을 이용한 스위치드 빔 선택 알고리즘
예충일, 최인경, 송영석, 권동승
- 7920646 (2011.04.05)
- The present invention relates to a system for selecting a switched beam for supplying a maximum received power to a subscriber station, and a method thereof. The number of switched beams used by a base station is limited, and a weight value vector for forming the switched beam is predefined. The subscriber station uses a pilot signal for discerning transmitting antennas to estimate channel values for the respective transmitting antennas, and uses the channel values and the predefined weight value vectors to determine a switched beam for supplying a maximum signal-to-noise ratio (SNR). The subscriber station notifies the base station of an identifier of a selected beam by using a feedback channel, and the base station uses the switched beam to transmit traffic data.
- KSP 제안 키워드
- Feedback channel, Pilot signal, Received power, Signal noise ratio(SNR), Signal-to-Noise, Subscriber station, Switched beam, base station(BS), signal system, traffic data, transmitting antennas, weight value