TW200629937A - Low complexity adaptive channel estimation - Google Patents

Low complexity adaptive channel estimation

Info

Publication number
TW200629937A
TW200629937A TW094142384A TW94142384A TW200629937A TW 200629937 A TW200629937 A TW 200629937A TW 094142384 A TW094142384 A TW 094142384A TW 94142384 A TW94142384 A TW 94142384A TW 200629937 A TW200629937 A TW 200629937A
Authority
TW
Taiwan
Prior art keywords
channel estimation
wireless communication
communication signal
index value
snr
Prior art date
Application number
TW094142384A
Other languages
English (en)
Inventor
Philip J Pietraski
Original Assignee
Interdigital Tech Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of TW200629937A publication Critical patent/TW200629937A/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
TW094142384A 2004-12-09 2005-12-01 Low complexity adaptive channel estimation TW200629937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/007,998 US20060128326A1 (en) 2004-12-09 2004-12-09 Low complexity adaptive channel estimation

Publications (1)

Publication Number Publication Date
TW200629937A true TW200629937A (en) 2006-08-16

Family

ID=36578400

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094142384A TW200629937A (en) 2004-12-09 2005-12-01 Low complexity adaptive channel estimation

Country Status (10)

Country Link
US (1) US20060128326A1 (zh)
EP (1) EP1820282A4 (zh)
JP (1) JP2008523721A (zh)
KR (2) KR20070086995A (zh)
CN (1) CN101065909A (zh)
CA (1) CA2589756A1 (zh)
MX (1) MX2007006719A (zh)
NO (1) NO20073474L (zh)
TW (1) TW200629937A (zh)
WO (1) WO2006062767A2 (zh)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100688510B1 (ko) * 2004-12-20 2007-03-02 삼성전자주식회사 계수 갱신 회로, 이를 포함하는 적응 등화기, 및 적응등화기의 계수 갱신 방법
US8761312B2 (en) * 2005-02-11 2014-06-24 Qualcomm Incorporated Selection of a thresholding parameter for channel estimation
US7848463B2 (en) * 2005-04-07 2010-12-07 Qualcomm Incorporated Adaptive time-filtering for channel estimation in OFDM system
US7822069B2 (en) * 2006-05-22 2010-10-26 Qualcomm Incorporated Phase correction for OFDM and MIMO transmissions
KR100773294B1 (ko) * 2006-08-28 2007-11-05 삼성전자주식회사 광대역 무선접속 시스템에서 채널 추정 장치 및 방법
US8411805B1 (en) 2007-08-14 2013-04-02 Marvell International Ltd. Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems
US8000413B2 (en) * 2007-08-20 2011-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Selective signal demodulation method and apparatus
KR101490342B1 (ko) * 2007-11-26 2015-02-05 삼성전자주식회사 이동통신 시스템의 채널 추정 장치 및 방법
FR2937482B1 (fr) * 2008-10-21 2011-12-30 St Microelectronics Sa Recepteur comportant un dispositif de correction de l'effet doppler
EP2194655A1 (en) * 2008-12-05 2010-06-09 ST Wireless SA Variable path detection length for efficient paging detection procedure
CN101777885B (zh) * 2009-01-14 2012-06-06 华为终端有限公司 滤波器系数的确定方法和装置
SG183306A1 (en) * 2010-02-17 2012-09-27 Ericsson Telefon Ab L M Method and apparatus for enhancing channel estimation
US8761598B2 (en) * 2010-04-08 2014-06-24 Broadcom Corporation Method and system for adaptively setting a transmitter filter for a high speed serial link transmitter
CN102158199B (zh) * 2010-12-31 2014-02-19 意法·爱立信半导体（北京）有限公司 时变系统中预存储滤波器系数组的选择方法及装置
KR101585447B1 (ko) * 2011-02-15 2016-01-18 삼성전자주식회사 무선통신 시스템에서 옵셋 보상을 고려한 엠엠에스이 채널추정 장치 및 방법
US8842789B2 (en) 2012-11-16 2014-09-23 Telefonaktiebolaget Lm Ericsson (Publ) Coefficient-specific filtering of initial channel estimates
US10045032B2 (en) * 2013-01-24 2018-08-07 Intel Corporation Efficient region of interest detection
TWI504169B (zh) * 2013-05-31 2015-10-11 Mstar Semiconductor Inc 加速等化收斂速度的接收裝置與方法
US9071482B2 (en) 2013-09-27 2015-06-30 Telefonaktiebolaget L M Ericsson (Publ) Power estimation for wireless communication devices in code division multiple access systems technical field
US9219629B1 (en) * 2014-08-27 2015-12-22 Zenith Electronics L.L.C. Adaptive low complexity channel estimation for mobile OFDM systems
US9712345B2 (en) * 2015-04-06 2017-07-18 Samsung Electronics Co., Ltd Communication device and method of controlling same
US11146422B1 (en) 2020-07-29 2021-10-12 U-Blox Ag Method and system for adjusting the bandwidth of a frequency domain smoothing filter for channel tracking loop in an OFDM communication system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
KR100219643B1 (ko) * 1997-06-26 1999-09-01 윤종용 동일채널 간섭 검출기와 그 구동방법
JP3913879B2 (ja) * 1998-02-03 2007-05-09 富士通株式会社 移動速度に基づく通信制御装置および方法
US6452917B1 (en) * 1999-04-08 2002-09-17 Qualcomm Incorporated Channel estimation in a CDMA wireless communication system
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
US6647055B2 (en) * 2000-08-31 2003-11-11 Wen-Yi Kuo Adaptive channel estimation using continuous pilot signal based on doppler period
KR100630112B1 (ko) * 2002-07-09 2006-09-27 삼성전자주식회사 이동통신시스템의 적응형 채널 추정장치 및 방법
US7454209B2 (en) * 2002-09-05 2008-11-18 Qualcomm Incorporated Adapting operation of a communication filter based on mobile unit velocity
WO2005011226A1 (en) * 2003-07-25 2005-02-03 Matsushita Electric Industrial Co., Ltd. Apparatus and method for multicarrier transmission / reception with transmission quality evaluation
DE10345959B4 (de) * 2003-10-02 2005-12-15 Infineon Technologies Ag Betriebssituationsabhängige Ermittlung und Selektion der Übertragungspfade für die Einrichtung von Rake-Fingern von Rake-Empfängereinheiten in Mobilkommunikations-Endgeräten
DE10350362B4 (de) * 2003-10-29 2008-06-19 Infineon Technologies Ag Verfahren zum Vorhersagen eines Kanalkoeffizienten
US7257171B2 (en) * 2005-04-04 2007-08-14 Motorola, Inc. Method and apparatus for reference symbol aided channel estimation

Also Published As

Publication number Publication date
WO2006062767A2 (en) 2006-06-15
EP1820282A4 (en) 2008-04-02
CA2589756A1 (en) 2006-06-15
CN101065909A (zh) 2007-10-31
WO2006062767A3 (en) 2006-12-07
US20060128326A1 (en) 2006-06-15
JP2008523721A (ja) 2008-07-03
KR20070086995A (ko) 2007-08-27
NO20073474L (no) 2007-09-07
EP1820282A2 (en) 2007-08-22
KR20070087250A (ko) 2007-08-27
MX2007006719A (es) 2007-07-09

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