The Farrell Law Firm, P.C.
Apparatus and method for eliminating multi-user interference
Provided are an apparatus and method for eliminating multi-user interference in a codebook-based beamforming system. A transmitter for providing a service to multi-users in the codebook-based beamforming system includes a beamformer for generating beamformed user signals by multiplying transmit data of users, to whom the service is to be provided, by corresponding weighting factor vectors using feedback information; a null space generator for generating a null space matrix orthogonal to weighting factor vectors of other users; and a projector for projecting the beamformed user signals on the corresponding null space matrix and transmitting the resulting signals through a plurality of antennas. Because the multi-user signals can maintain orthogonality, the performance degradation caused by the multi-user interference can be prevented.
Industry-Academic Cooperation Foundation, Yonsei University Samsung Electronics Co., Ltd
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H04B H04B H04B H04B H04B
inventional inventional additional inventional inventional
Seung-Hoon Chung-Yong Yung-Soo Kyeong-Yeon Sei-Joon Myeon-Kyun
Nam Lee Kim Kim Shim Cho