Invention Grant
US08717994B2 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
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Application No.: US13389257Application Date: 2010-08-13
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Publication No.: US08717994B2Publication Date: 2014-05-06
- Inventor: Hyun Soo Ko , Seung Hee Han , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
- Applicant: Hyun Soo Ko , Seung Hee Han , Jae Hoon Chung , Bin Chul Ihm , Moon Il Lee
- 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: KR10-2010-0078059 20100813
- International Application: PCT/KR2010/005320 WO 20100813
- International Announcement: WO2011/019229 WO 20110217
- Main IPC: H04W4/00
- IPC: H04W4/00
Abstract:
A method for transmitting a reference signal for a maximum of eight antenna ports includes mapping a portion of common reference signals (CRSs) for a maximum of four antenna ports into a downlink subframe that includes a 1st slot and a 2nd slot; mapping channel status information reference signals (CSI-RSs) for the maximum of eight antenna ports into the downlink subframe according to a preset pattern; and transmitting the downlink subframe into which the common reference signal and the channel status information reference signal are mapped, wherein the preset pattern defines the CSI-RSs for the maximum of eight antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, and wherein the portion of the CRSs for the maximum of four antenna ports is limited to the CRSs for a maximum of two antenna ports.
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