公开(公告)号：WO2006047918A1

公开(公告)日：2006-05-11

申请号：PCT/CN2005/000278

申请日：2005-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  WENNSTROM, Mattias ,  POPOVIC, Branisolv

Inventor： WENNSTROM, Mattias ,  POPOVIC, Branisolv

IPC: H04B7/00

CPC classification number: H04B7/0417 ,  H04B7/0634 ,  H04B7/0669 ,  H04B7/0854

Abstract: The invention is related to a method providing closed-loop transmit diversity in a wireless communication system. The method comprises the step of receiving feedback information about a channel state in a transmitting end in the wireless communication system from at least one receiving end. The system further comprises a number of transmitter antennas providing for at least one Alamouti encoded data substream, and a number of receiver antennas. The method is characterised in that it comprises the step of conveying, at the receiving end, feedback information containing the complex valued weights of a subset of the receiver antennas, thereby reducing the bandwidth used for feeding back information from said receiving end. The invention is also related to such a receiver, transmitter and system.

Abstract translation: 本发明涉及一种在无线通信系统中提供闭环发射分集的方法。 该方法包括从至少一个接收端接收关于无线通信系统中发送端的信道状态的反馈信息的步骤。 该系统还包括提供至少一个Alamouti编码数据子流的多个发射机天线和多个接收机天线。 该方法的特征在于，其包括在接收端传送包含接收机天线的子集的复值权重的反馈信息的步骤，从而减少用于从所述接收端反馈信息的带宽。 本发明还涉及这种接收机，发射机和系统。

公开(公告)号：WO2006047909A1

公开(公告)日：2006-05-11

申请号：PCT/CN2004/001257

申请日：2004-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  WENNSTRÖM, Mattias ,  POPOVIC, Branisolv

Inventor： WENNSTRÖM, Mattias ,  POPOVIC, Branisolv

IPC: H04B7/00

CPC classification number: H04B7/0417 ,  H04B7/0634 ,  H04B7/0669 ,  H04B7/0854

Abstract: The invention is related to a method providing closed-loop transmit diversity in a wireless communication system. The method comprises the step of receiving feedback information about a channel state in a transmitting end in the wireless communication system from at least one receiving end. The system further comprises at least four transmitter antennas providing for at least two Alamouti encoded data substreams, and a number of receiver antennas. The method is characterised in that it comprises the step of conveying, at the receiving end, feedback information containing the complex valued weights of a subset of the receiver antennas, thereby reducing the bandwidth used for feeding back information from said receiving end. The invention is also related to such a receiver, transmitter and system.

Abstract translation: 本发明涉及一种在无线通信系统中提供闭环发射分集的方法。 该方法包括从至少一个接收端接收关于无线通信系统中发送端的信道状态的反馈信息的步骤。 该系统还包括提供至少两个Alamouti编码数据子流的至少四个发射机天线以及多个接收机天线。 该方法的特征在于，它包括在接收端传送包含接收机天线的子集的复值权重的反馈信息的步骤，从而减少用于从所述接收端反馈信息的带宽。 本发明还涉及这种接收机，发射机和系统。