发明授权
US08254486B2 Unified closed loop SU/MU-MIMO signaling and codebook design
有权
统一闭环SU / MU-MIMO信令和码本设计
- 专利标题: Unified closed loop SU/MU-MIMO signaling and codebook design
- 专利标题(中): 统一闭环SU / MU-MIMO信令和码本设计
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申请号: US11904867申请日: 2007-09-28
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公开(公告)号: US08254486B2公开(公告)日: 2012-08-28
- 发明人: Jun Shi , Qinghua Li , Xintian E. Lin
- 申请人: Jun Shi , Qinghua Li , Xintian E. Lin
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Kacvinsky Daisak, PLLC
- 主分类号: H04B7/04
- IPC分类号: H04B7/04
摘要:
A multi-resolution codebook is used to provide quantization for channel related information in a wireless network that supports both single-user MIMO and multi-user MIMO. The multi-resolution codebook may include a higher resolution “fine” codebook for use with MU-MIMO subscriber stations and a lower resolution “coarse” codebook for use with SU-MIMO subscriber stations. A tracking codebook may also be used to provide quantization for updates to channel related information. In at least one embodiment, the tracking codebook includes a number of unit vectors (or orthogonal matrices) disposed upon a sphere cap.