公开(公告)号：US20110274205A1

公开(公告)日：2011-11-10

申请号：US13145557

申请日：2010-01-29

Applicant: Moon Il Lee ,  Wook Bong Lee ,  Jae Hoon Chung ,  Hyan Soo Ko ,  Bin Chnl Ihm

Inventor： Moon Il Lee ,  Wook Bong Lee ,  Jae Hoon Chung ,  Hyan Soo Ko ,  Bin Chnl Ihm

IPC: H04L27/00 ,  H04L27/06

CPC classification number: H04B7/0413 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/005 ,  H04W52/325 ,  H04W52/42

Abstract: Provided is a method for transmitting a reference signal (RS) in a downlink multi-input multi-output (MIMO) system which supports a first user equipment (UE) for supporting N transmission antennas from among a total of M transmitting antennas and a second UE for supporting M transmitting antennas (wherein, M>N). The method comprises the steps of: generating a subframe for simultaneously supporting the first UE and the second UE at a base station; transmitting the subframe; and mapping a common reference signal (CRS) for antenna port 0 to antenna port N−1, mapping a CRS for antenna port N to antenna port M−1, and controlling a power level of a CRS for antenna port 0 to antenna port N−1 and a power level of CRS for antenna port N to antenna port M−1, independently from one another, at the subframe.

Abstract translation: 提供了一种用于在下行链路多输入多输出（MIMO）系统中发送参考信号（RS）的方法，所述下行链路多输入多输出（MIMO）系统支持从总共M个发送天线中支持N个发送天线的第一用户设备（UE） UE支持M个发射天线（其中，M> N）。 该方法包括以下步骤：生成用于在基站处同时支持第一UE和第二UE的子帧; 发送子帧; 并将天线端口0的公共参考信号（CRS）映射到天线端口N-1，将天线端口N的CRS映射到天线端口M-1，并将天线端口0的CRS的功率电平控制到天线端口N -1，并且天线端口N到天线端口M-1的CRS的功率电平彼此独立，在子帧处。