发明申请
US20110002406A1 System and Method for Multi-cell Joint Codebook Feedback in Wireless Communications Systems 有权
无线通信系统中多小区联合码本反馈的系统与方法

System and Method for Multi-cell Joint Codebook Feedback in Wireless Communications Systems
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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