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Title:
METHOD AND APPARATUS FOR PERFORMING A HYBRID AUTOMATIC REPEAT REQUEST PROCESS FOR AN UPLINK MULTI-CODEWORD TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM WHICH SUPPORTS A MULTI-ANTENNA TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2011/102697
Kind Code:
A2
Abstract:
The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for performing a hybrid automatic repeat request process for an uplink multi-codeword transmission in a wireless communication system which supports a multi-antenna transmission. The uplink multi-codeword transmission method according to one embodiment of the present invention comprises the following steps: transmitting first and second codewords, transmitting information on the status of transmission buffer for the first and second codewords, receiving downlink control information (DCI) containing acknowledgement (ACK)/negative acknowledgement (NACK) information on each of the first and second codewords, and re-transmitting the codeword for NACK information, wherein the codeword for ACK information is not transmitted to a base station in cases where the transmission buffer is empty.

Inventors:
CHUNG JAE HOON (KR)
KO HYUN SOO (KR)
HAN SEUNG HEE (KR)
LEE MOON IL (KR)
Application Number:
KR2011/001155
Publication Date:
August 25, 2011
Filing Date:
February 22, 2011
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
CHUNG JAE HOON (KR)
KO HYUN SOO (KR)
HAN SEUNG HEE (KR)
LEE MOON IL (KR)
International Classes:
H04L1/18; H04B7/26; H04J11/00
Foreign References:
KR20080003682A2008-01-08
US20080192718A12008-08-14
Other References:
ROHDE&SCHWARZ: 'UMTS Long Term Evolution Technology Introduction' APPLICATION NOTE 1MA1 11 September 2008, page 11,12,20
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
김용인 (KR)
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Claims: