EP 1712012 A1 20061018 - METHOD AND APPARATUS OF NOISE VARIANCE ESTIMATION FOR USE IN WIRELESS COMMUNICATION SYSTEMS
Title (en)
METHOD AND APPARATUS OF NOISE VARIANCE ESTIMATION FOR USE IN WIRELESS COMMUNICATION SYSTEMS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR RAUSCHVARIANZSCHÄTZUNG ZUR VERWENDUNG IN DRAHTLOSEN KOMMUNIKATIONSSYSTEMEN
Title (fr)
PROCEDE ET APPAREIL D'ESTIMATION DE VARIANCE DE BRUIT, UTILISABLES DANS DES SYSTEMES DE COMMUNICATION SANS FIL
Publication
Application
Priority
- IB 2004052631 W 20041202
- CN 200310119784 A 20031205
Abstract (en)
[origin: WO2005055456A1] A method of noise variance estimation to be performed by a user equipment is proposed, comprising steps of: receiving a signal vector containing training sequence and noise vector transmitted via at least one transmission path; estimating the channel impulse response of each transmission path to construct a channel impulse response matrix, according to the signal vector; calculating the noise variance of the signal vector according to the channel impulse response matrix and the signal vector if the channel impulse response remains mainly unchanged during the special time duration of the training sequence.
IPC 8 full level
H04B 1/707 (2006.01); H04B 1/7105 (2011.01); H04L 1/20 (2006.01); H04B 1/7115 (2018.01); H04L 25/02 (2006.01)
CPC (source: EP KR)
H04B 1/10 (2013.01 - KR); H04B 1/71057 (2013.01 - EP); H04B 1/711 (2013.01 - KR); H04L 1/20 (2013.01 - EP); H04B 1/707 (2013.01 - EP); H04B 1/7115 (2013.01 - EP); H04L 25/0202 (2013.01 - EP)
Citation (search report)
See references of WO 2005055456A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005055456 A1 20050616; CN 1625075 A 20050608; CN 1890891 A 20070103; EP 1712012 A1 20061018; JP 2007513564 A 20070524; KR 20060123263 A 20061201
DOCDB simple family (application)
IB 2004052631 W 20041202; CN 200310119784 A 20031205; CN 200480036067 A 20041202; EP 04801439 A 20041202; JP 2006542102 A 20041202; KR 20067011078 A 20060605