Title:
等化構造及び等化方法
Document Type and Number:
Japanese Patent JP5053377
Kind Code:
B2
Abstract:
The present invention comprises an equalizing structure (10) for a receiving device of a wireless communication system, in which two or more transmit signals transmitted in parallel from one or more transmitters are received in receive signal vectors representing two or more receive data streams, said signals comprising information modulated onto carrier signals according to a modulation scheme, wherein all possible transmit signals are represented by candidate constellation values in the signal constellation of said modulation scheme, comprising,
a metric value calculator (17) adapted to calculate metric values on the basis of said receive signal vectors and the product of channel estimation values with candidate signal vectors using absolute value calculations, each candidate signal vector comprising a candidate constellation value for each of said two or more transmit signals,
a maximum likelihood detector (16) adapted to detect one of said candidate signal vectors having a minimum Euclidean distance to a respective receive signal vector as a most likely transmit signal vector on the basis of said metric values. The invention further comprises a corresponding equalizing method and a computer program performing said method.
Inventors:
Sterling-Garacha, Richard
Application Number:
JP2009525931A
Publication Date:
October 17, 2012
Filing Date:
May 23, 2007
Export Citation:
Assignee:
Sony Deutschland Gezel Shaft Mitt Beschlenktel Haftung
International Classes:
H04J99/00; H04B7/005; H04B7/04; H04J11/00; H04L27/01
Domestic Patent References:
| JP2006502618A |
Foreign References:
| WO2007040018A1 |
Other References:
東中雅嗣 他,MIMOシステムにおける同一チャネル干渉除去に関する検討,2005年電子情報通信学会通信ソサイエィ大会講演論文集1,2005年 9月 7日,B-5-13,P.413
YUANRUN TENG,IEEE INTERNATIONAL CONFERENCE ON WIRELESS NETWORKS COMMUNICATION AND MOBILE COMPUTING,2005年 6月13日,P256-261
KOIKE T,IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE,2005年 5月30日,P1642-1646
LEI HE,MILCOM 2003,米国,IEEE,2003年10月13日,V2 OF 2,P1386-1391
YUANRUN TENG,IEEE INTERNATIONAL CONFERENCE ON WIRELESS NETWORKS COMMUNICATION AND MOBILE COMPUTING,2005年 6月13日,P256-261
KOIKE T,IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE,2005年 5月30日,P1642-1646
LEI HE,MILCOM 2003,米国,IEEE,2003年10月13日,V2 OF 2,P1386-1391
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Tetsuo Kanamoto
Koji Hagiwara