The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Jan. 25, 2008
Tomohiro Imai, Kanagawa, JP;
Masayuki Hoshino, Kanagawa, JP;
Yasuaki Yuda, Kanagawa, JP;
Katsuhiko Hiramatsu, Kanagawa, JP;
Tomohiro Imai, Kanagawa, JP;
Masayuki Hoshino, Kanagawa, JP;
Yasuaki Yuda, Kanagawa, JP;
Katsuhiko Hiramatsu, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a multiuser MIMO system, entire system throughput achieved during retransmission is significantly enhanced. When an interference signal addressed to another user equipment (UE)has been demodulated successfully, a user equipment (UE)holds the demodulated data pertaining to the interference signal, and feeds back ACK information about the UEand CQI information achieved after elimination of the interference signal to a radio base station (BS). When the UEperforms retransmission after ended in a receiving failure and when the UEhas demodulated the interference signal addressed to the UEsuccessfully, the BS changes the distribution of communication resources in such a way that communication resources for the UEbecome larger than those for the UE. At the time of retransmission, the UEeliminates the interference signal from a newly-received signal by use of previously-held demodulated data pertaining to the interference signal, and the UEcombines data pertaining to the desired signal held during previous receiving failure with data pertaining to the retransmitted signal by means of soft combining.