Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Saturday 31.10.2020 at 7:00 AM CET
Settings

Settings

Goto Application

1. WO2012059555 - SELF-INTERFERENCE SUPPRESSION IN FULL-DUPLEX MIMO RELAYS

Publication Number WO/2012/059555
Publication Date 10.05.2012
International Application No. PCT/EP2011/069360
International Filing Date 03.11.2011
IPC
H04B 7/155 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
155Ground-based stations
H04B 7/04 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
CPC
H04B 7/15528
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
155Ground-based stations
15528Control of operation parameters of a relay station to exploit the physical medium
H04B 7/15564
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
155Ground-based stations
15564Relay station antennae loop interference reduction
Applicants
  • TELEFONAKTIEBOLAGET L M ERICSSON (publ) [SE]/[SE] (AllExceptUS)
  • LIOLIOU, Panagiota [GR]/[SE] (UsOnly)
  • VIBERG, Mats [SE]/[SE] (UsOnly)
  • COLDREY, Mikael [SE]/[SE] (UsOnly)
Inventors
  • LIOLIOU, Panagiota
  • VIBERG, Mats
  • COLDREY, Mikael
Agents
  • EKWALL, Peter
Priority Data
61/409,57103.11.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELF-INTERFERENCE SUPPRESSION IN FULL-DUPLEX MIMO RELAYS
(FR) SUPPRESSION D'AUTO-BROUILLAGE DANS DES RELAIS MIMO À DUPLEX INTÉGRAL
Abstract
(EN)
A method, and an apparatus, for self-interference suppression in a relay (300) for wireless communication, wherein the relay (300) is arranged for receiving a signal r(n) transmitted from a transmitter (301), and for transmitting a self-interference suppressed transmit signal xr(n) to a receiver (305). The self-interference suppressed transmit signal xr(n) is achieved by determining (402) a receive suppression filter matrix Wr (302), determining a relay amplification matrix G (303), and determining (403) a transmit suppression filter matrix Wt (304), and then applying the suppression filters and the amplification matrix to the received signal r(n).
(FR)
La présente invention se rapporte à un procédé et à un appareil adaptés pour supprimer un auto-brouillage dans un relais (300) de communication sans fil. L'invention est caractérisée en ce que le relais (300) est configuré de façon à recevoir un signal r(n) transmis par un transmetteur (301) et à transmettre un signal de transmission à auto-brouillage supprimé xr(n) à un récepteur (305). Le signal de transmission à auto-brouillage supprimé xr(n) est obtenu : en déterminant (402) une matrice de filtres de suppression dans un signal reçu Wr (302); en déterminant une matrice d'amplification de relais G (303); en déterminant (403) une matrice de filtres de suppression dans un signal transmis WT (304); et en appliquant ensuite la matrice de filtres de suppression et la matrice d'amplification sur le signal reçu r(n).
Latest bibliographic data on file with the International Bureau