BROWSE
Detail
Registered MULTIPLE BEAMFORMING METHOD AND APPARATUS
- Inventors
- In-Kyeong Choi, 강지원, 이충용, Dongseung Kwon
- Application No.
- 12677630 (2008.09.11)
- Publication No.
- 20100189002 (2010.07.29)
- Registration No.
- 8331255 (2012.12.11)
- Country
- UNITED STATES
- Abstract
- The present invention relates to a beamforming method and apparatus. A beamforming method for use in a base station for transmitting a plurality of streams through a plurality of antennas includes: receiving feedback information including information on a first codeword selected from a codebook including a plurality of codewords from each of a plurality of user terminals; grouping the plurality of user terminals by use of the feedback information from each user terminal; determining a user terminal to which a plurality of streams will be assigned of the plurality of user terminals, and determining a second codeword to be used for beamforming from the codebook by use of the feedback information of each user terminal and grouping information; and multiplying data to be transmitted through the plurality of steams by the second codeword and a unitary matrix.
- KSP Keywords
- Feedback information, User terminals, base station, unitary matrix