发明申请
- 专利标题: System and Method for Multi-cell Joint Codebook Feedback in Wireless Communications Systems
- 专利标题(中): 无线通信系统中多小区联合码本反馈的系统与方法
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申请号: US12830405申请日: 2010-07-05
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公开(公告)号: US20110002406A1公开(公告)日: 2011-01-06
- 发明人: Jia Ming , Mohammadhadi Baligh , Jianglei Ma , Peiying Zhu , Wen Tong
- 申请人: Jia Ming , Mohammadhadi Baligh , Jianglei Ma , Peiying Zhu , Wen Tong
- 申请人地址: US TX Plano
- 专利权人: FutureWei Technologies, Inc.
- 当前专利权人: FutureWei Technologies, Inc.
- 当前专利权人地址: US TX Plano
- 主分类号: H04L27/28
- IPC分类号: H04L27/28
摘要:
A system and method for multi-cell joint codebook feedback in wireless communications systems are provided. A method for operations at a communications device receiving joint transmissions from a plurality of communications controllers includes estimating a channel between the communications device and each communications controller in the plurality of communications controllers, thereby producing a plurality of channel estimates, computing feedback information based on the plurality of channel estimates, transmitting the feedback information, and receiving simultaneous transmissions from the plurality of communications controllers. The computing is based on a phase adjustment for the plurality of channels or a joint optimization of the plurality of channels, and the simultaneous transmissions are precoded based on the feedback information.
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