发明名称 |
Method and apparatus for transceiving channel status information in wireless communication system supporting cooperative transmission |
摘要 |
The present invention relates to a wireless communication system. A method for reporting CSI (Channel State Information) in a cooperative multi-point (CoMP) wireless communication system, the method performed by a user equipment (UE) and comprising receiving first resource configuration information for a CSI-RS (Channel-State Information-Reference Signal) and second resource configuration information for interference measurement; and calculating CSI using the first resource configuration information and the second resource configuration information, the CSI being for one or more base stations (BSs) among a plurality of BSs participating the COMP, wherein an interference measurement resource according to the second resource configuration information exists in a union of zero-power CSI-RS resources of each of the plurality of BSs. |
申请公布号 |
US9596067(B2) |
申请公布日期 |
2017.03.14 |
申请号 |
US201314421787 |
申请日期 |
2013.09.16 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
Kim Hyungtae;Park Jonghyun;Kim Kijun;Kim Eunsun |
分类号 |
H04L5/00;H04B7/02;H04B7/06;H04W72/04 |
主分类号 |
H04L5/00 |
代理机构 |
Lee Hong Degerman Kang Waimey |
代理人 |
Lee Hong Degerman Kang Waimey |
主权项 |
1. A method for reporting Channel State Information (CSI) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving multiple zero-power CSI-reference signal (ZP CSI-RS) configurations associated with multiple transmission points configured to perform coordinated multi-point (CoMP) operation for the UE; receiving an enhanced physical downlink control channel (EPDCCH) configuration that identifies one of the multiple ZP CSI-RS configuration; receiving information on a CSI process associated with a CSI-RS configuration and a CSI-Interference Measurement (CSI-IM) configuration; receiving, via an EPDCCH, downlink control information (DCI) indicating the CSI process; and transmitting the CSI based on at least one of the CSI-RS configuration and the CSI-IM configuration for the CSI process, wherein, in receiving the DCI, the UE determines that the DCI of the EPDCCH is not mapped to a resource of a ZP CSI-RS configuration that is identified by the EPDCCH configuration, wherein the CSI-IM configuration indicates resource elements, a period and a subframe offset for interference measurement, and wherein the resource elements, the period and the subframe offset indicated by the CSI-IM configuration are included in one of the multiple ZP CSI-RS configurations. |
地址 |
Seoul KR |