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1. WO2010005221 - APPARATUS AND METHOD FOR INTER-CELL INTERFERENCE CANCELLATION IN MIMO WIRELESS COMMUNICATION SYSTEM

Publication Number WO/2010/005221
Publication Date 14.01.2010
International Application No. PCT/KR2009/003700
International Filing Date 07.07.2009
IPC
H04B 7/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
CPC
H04B 7/024
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
022Site diversity; Macro-diversity
024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
H04B 7/0417
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0417Feedback systems
H04B 7/0486
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
0486taking channel rank into account
H04B 7/063
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0621Feedback content
063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
H04B 7/0639
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0636Feedback format
0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
H04J 11/0023
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
11Orthogonal multiplex systems, ; e.g. using WALSH codes
0023Interference mitigation or co-ordination
Applicants
  • SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR] (AllExceptUS)
  • HAN, Shuangfeng [CN]/[KR] (UsOnly)
  • KIM, Eun-Yong [KR]/[KR] (UsOnly)
  • LEE, Hyeon-Woo [KR]/[KR] (UsOnly)
  • CHOI, Ho-Kyu [KR]/[KR] (UsOnly)
  • PARK, Joon-Ho [US]/[KR] (UsOnly)
  • MAZZARESE, David [FR]/[KR] (UsOnly)
  • CLERCKX, Bruno [BE]/[KR] (UsOnly)
  • HONG, Song-Nam [KR]/[KR] (UsOnly)
Inventors
  • HAN, Shuangfeng
  • KIM, Eun-Yong
  • LEE, Hyeon-Woo
  • CHOI, Ho-Kyu
  • PARK, Joon-Ho
  • MAZZARESE, David
  • CLERCKX, Bruno
  • HONG, Song-Nam
Agents
  • KWON, Hyuk-Rok
Priority Data
10-2008-006566407.07.2008KR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR INTER-CELL INTERFERENCE CANCELLATION IN MIMO WIRELESS COMMUNICATION SYSTEM
(FR) APPAREIL ET PROCÉDÉ D’ANNULATION DES INTERFÉRENCES INTERCELLULAIRES DANS UN SYSTÈME DE COMMUNICATION SANS FIL MIMO
Abstract
(EN)
A method for operating a Mobile Station (MS) in a Multiple Input Multiple Output (MIMO) wireless communication system is provided. The method includes measuring channel quality for a serving Base Station (BS), if the channel quality is less than a threshold, measuring interference power from one or more neighbor BSs, determining a Precoding Matrix Index (PMI) and a priority metric for each neighbor BS, and feeding back at least one of the PMI, a PMI type indicator, the priority metric, and the channel quality to the serving BS.
(FR)
L’invention concerne un procédé d’exploitation d’une station mobile (MS) dans un système de communication sans fil entrées multiples-sorties multiples (MIMO). Le procédé comprend la mesure de la qualité de voie de transmission pour une station de base en service (BS) ; si la qualité de voie de transmission est inférieure à un seuil, la mesure de la puissance d’interférence provenant d’une ou de plusieurs BS voisines ; la détermination d’un indice de matrice de précodage (PMI) et d’une métrique de priorité pour chaque BS voisine ; et le renvoi d’un PMI et/ou d’un indicateur de type PMI et/ou d’une métrique de priorité et/ou d’une qualité de voie de transmission à la BS en service.
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