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1. SG188508 - SELF-INTERFERENCE SUPPRESSION IN FULL-DUPLEX MIMO RELAYS

Office Singapore
Application Number 2013017983
Application Date 03.11.2011
Publication Number 188508
Publication Date 30.04.2013
Publication Kind A
IPC
H04B 7/155
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
155Ground-based stations
H04B 7/04
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 7/15564
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
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
Applicants TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
Inventors LIOLIOU, PANAGIOTA
VIBERG, MATS
COLDREY, MIKAEL
Priority Data 61/409,571 03.11.2010 US
Title
(EN) SELF-INTERFERENCE SUPPRESSION IN FULL-DUPLEX MIMO RELAYS
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).