NSIP Law
Method and apparatus for determining downlink beamforming vectors in hierarchical cell communication system
Provided is a method and apparatus for determining a downlink beamforming vector in a hierarchical cell communication system. Small base stations may determine transmit beamforming vectors of the small base stations so that interference from the small base stations may be reduced in a macro terminal. A macro terminal and small terminals may determine receive beamforming vectors based on the transmit beamforming vectors of the small base stations. A macro base station may determine a transmit beamforming vector based on effective channels to terminals using the receive beamforming vectors of the terminals.
Samsung Electronics Co., Ltd.
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Young Jun Won Jae Chang Yong Won Jong Kyung Hun Nam Yoon Hyun Ho
Hong Shin Shin Noh Jang Lee Choi