发明授权
- 专利标题: Correlation-matrix feedback method and system for antenna array
- 专利标题(中): 天线阵列的相关矩阵反馈方法和系统
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申请号: US13639140申请日: 2010-04-06
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公开(公告)号: US08982973B2公开(公告)日: 2015-03-17
- 发明人: Jinhui Chen , Dong Li , Hongwei Yang , Yang Song
- 申请人: Jinhui Chen , Dong Li , Hongwei Yang , Yang Song
- 申请人地址: FR Boulogne-Billancourt
- 专利权人: Alcatel Lucent
- 当前专利权人: Alcatel Lucent
- 当前专利权人地址: FR Boulogne-Billancourt
- 代理机构: Fay Sharpe LLP
- 国际申请: PCT/CN2010/000447 WO 20100406
- 国际公布: WO2011/123977 WO 20111013
- 主分类号: H04K1/10
- IPC分类号: H04K1/10 ; H04L27/28 ; H04B7/06
摘要:
The present invention provides a correlation-matrix feedback method and system for an antenna array. The method comprises steps of: selecting, at a receiving end, a codeword from a predetermined correlation-matrix codebook comprising a plurality of codewords according to a predetermined criterion to represent a correlation matrix to be fed back (300); and feeding back an index of the selected codeword in the predetermined correlation-matrix codebook to a transmitting end (302); wherein each codeword is a codeword matrix for approximating a correlation matrix of an antenna array at the transmitting end. According to the present invention, it is possible to take good advantage of the characteristics of closely-spaced ULA antennas and spatial correlation thereof, design a corresponding codebook for quantization and feedback, and reduce feedback overhead and computational complexity so as to improve the system performance of a spatial correlation aided system, such as a MIMO system.
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