Invention Grant
US09503236B2 Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas
有权
用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置
- Patent Title: Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas
- Patent Title (中): 用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置
-
Application No.: US14543804Application Date: 2014-11-17
-
Publication No.: US09503236B2Publication Date: 2016-11-22
- Inventor: Hyun Soo Ko , Bin Chul Ihm , Moon Il Lee , Jae Hoon Chung , Seung Hee Han
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Lee, Hong, Degerman. Kang & Waimey
- Priority: KR10-2010-0078058 20100813
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04L5/00 ; H04W72/04 ; H04B7/04 ; H04J13/00 ; H04B7/06 ; H04B7/216 ; H04W72/08 ; H04L25/02 ; H04L27/26 ; H04W52/32 ; H04W72/02
Abstract:
A method for transmitting reference signals for eight or fewer antenna ports includes mapping a portion of common reference signals (CRSs) for four or fewer antenna ports into a downlink subframe including 1st slot and 2nd slot with a normal cyclic prefix configuration; mapping channel status information reference signals (CSI-RSs) for eight or fewer antenna ports into the downlink subframe according to a preset pattern; and transmitting the downlink subframe into which the CRSs and the CSI-RSs are mapped, wherein the preset pattern defines the CSI-RSs for eight or fewer antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, with the two OFDM symbols being spaced apart by one OFDM symbol, and wherein the portion of the CRSs for four or fewer antenna ports is limited to the CRSs for two or fewer antenna ports.
Public/Granted literature
Information query
