公开(公告)号：US20150381241A1

公开(公告)日：2015-12-31

申请号：US14844153

申请日：2015-09-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young-Jo KO ,  Jae Young AHN ,  Bangwon SEO

IPC: H04B7/02 ,  H04W72/12 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04L5/0035 ,  H04W72/1289

Abstract: Provided is a coordinated communication method in which a plurality of cells cooperate to perform multi-antenna transmission and reception in a cellular wireless communication system. A terminal wirelessly transmits channel state information (CSI) feedback to a serving cell and at least one coordinating cell. The serving cell and the coordinating cell perform multi-point coordinated communication using the CSI feedback. Even if the serving cell and the coordinating cell belong to different base stations, information exchange between the cells is minimized, so that a transmission delay and a traffic increment of a backhaul network can be prevented.

Abstract translation: 提供了一种协作通信方法，其中多个小区协作以在蜂窝无线通信系统中执行多天线发送和接收。 终端向服务小区和至少一个协调小区无线地发送信道状态信息（CSI）反馈。 服务小区和协调小区使用CSI反馈进行多点协调通信。 即使服务小区和协调小区属于不同的基站，小区之间的信息交换被最小化，从而可以防止回传网络的传输延迟和业务增量。