公开(公告)号：US20130279447A1

公开(公告)日：2013-10-24

申请号：US13919697

申请日：2013-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Minseok NOH ,  Jaehoon CHUNG ,  Hyunsoo KO ,  Seunghee HAN ,  Moonil LEE

IPC: H04W72/14

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L1/1861 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/0055 ,  H04L7/041 ,  H04L25/03343 ,  H04W28/04 ,  H04W72/04 ,  H04W72/042 ,  H04W72/14

Abstract: A method and apparatus for transmitting a Reference Signal (RS) during retransmission at a User Equipment (UE) in a multi-antenna wireless communication system are disclosed. The RS transmission method includes receiving an uplink grant from a Base Station (BS), initially transmitting data and an RS corresponding to each layer based on the uplink grant, receiving ACKnowledgment/Negative ACKnowledgment (ACK/NACK) information for the initially transmitted data, and retransmitting the RS corresponding to each layer and the data according to the ACK/NACK information. The retransmission includes initializing a cyclic shift value for the RS corresponding to each layer according to a cyclic shift field for RSs included in the uplink grant.

Abstract translation: 公开了一种用于在多天线无线通信系统中的用户设备（UE）的重传期间发送参考信号（RS）的方法和装置。 RS传输方法包括从基站（BS）接收上行链路许可，最初基于上行链路授权发送与每个层相对应的数据和RS，接收用于初始发送的数据的确认/否定确认（ACK / NACK）信息， 并根据ACK / NACK信息重传与每层对应的RS和数据。 重传包括根据上行链路授权中包括的RS的循环移位字段，初始化与每层对应的RS的循环移位值。