Invention Grant
- Patent Title: Method and apparatus for efficiently transmitting control information to support uplink multiple antenna transmission
- Patent Title (中): 用于有效发送控制信息以支持上行链路多天线传输的方法和装置
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Application No.: US14467351Application Date: 2014-08-25
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Publication No.: US09455801B2Publication Date: 2016-09-27
- Inventor: Hyun Soo Ko , Jae Hoon Chung , Seung Hee Han , Moon Il Lee
- 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 & Walmey
- Agent Jonathan Kang; Michael Monaco
- Priority: KR10-2011-0028302 20110329
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04L1/08 ; H04L1/16 ; H04L1/18 ; H04B7/06 ; H04W72/04 ; H04B7/04 ; H04W52/24 ; H04W88/02 ; H04W88/08 ; H04L1/00 ; H04L25/03

Abstract:
The present invention relates to a method for transmitting control information regarding uplink multiple antenna transmission may comprise the steps of: transmitting DCI for scheduling the uplink transmission of a plurality of data blocks through a PDCCH; receiving the plurality of data blocks scheduled by the DCI; transmitting information which indicates positive acknowledgement or negative acknowledgement to each of the plurality of received data blocks through the PHICH; and receiving retransmission for the negative acknowledged data blocks. When the number of the negative-acknowledged data blocks is not equal to the number data blocks indicated in the PDCCH, a pre-coding matrix, which is for the number of transmission layers equivalent to that of layers corresponding to the negative-acknowledged data blocks, may be used for retransmission.
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