System and Method for Multi-cell Joint Codebook Feedback in Wireless Communications Systems,申请号US20100830405-传众专利搜索

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

申请公布号：US2011002406(A1)

申请号：US20100830405

申请日期：2010.07.05

申请公布日期：2011.01.06

申请人：

FUTUREWEI TECHNOLOGIES, INC.

发明人：MING JIA;BALIGH MOHAMMADHADI;MA JIANGLEI;ZHU PEIYING;TONG WEN

分类号：H04L27/28

主分类号：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.