ATE532301T1 - Kanalschätzung für drahtlose kommunikation - Google Patents

Kanalschätzung für drahtlose kommunikation

Info

Publication number
ATE532301T1
ATE532301T1 AT06801274T AT06801274T ATE532301T1 AT E532301 T1 ATE532301 T1 AT E532301T1 AT 06801274 T AT06801274 T AT 06801274T AT 06801274 T AT06801274 T AT 06801274T AT E532301 T1 ATE532301 T1 AT E532301T1
Authority
AT
Austria
Prior art keywords
filter
channel estimation
channel
derived
wireless communications
Prior art date
Application number
AT06801274T
Other languages
English (en)
Inventor
Tao Luo
Aleksandar Damnjanovic
Durga Malladi
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE532301T1 publication Critical patent/ATE532301T1/de

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
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71072—Successive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • 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
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L25/0238—Channel estimation using blind estimation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Transceivers (AREA)
AT06801274T 2005-08-12 2006-08-10 Kanalschätzung für drahtlose kommunikation ATE532301T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US70767305P 2005-08-12 2005-08-12
US11/492,605 US8165186B2 (en) 2005-08-12 2006-07-24 Channel estimation for wireless communication
PCT/US2006/031405 WO2007021952A2 (en) 2005-08-12 2006-08-10 Channel estimation for wireless communication

Publications (1)

Publication Number Publication Date
ATE532301T1 true ATE532301T1 (de) 2011-11-15

Family

ID=37499233

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06801274T ATE532301T1 (de) 2005-08-12 2006-08-10 Kanalschätzung für drahtlose kommunikation

Country Status (10)

Country Link
US (3) US8165186B2 (de)
EP (3) EP2273742B1 (de)
JP (3) JP4897810B2 (de)
KR (3) KR101143242B1 (de)
CN (3) CN101958730B (de)
AT (1) ATE532301T1 (de)
ES (1) ES2373567T3 (de)
MY (1) MY146679A (de)
TW (2) TWI340568B (de)
WO (1) WO2007021952A2 (de)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7471932B2 (en) * 2003-08-11 2008-12-30 Nortel Networks Limited System and method for embedding OFDM in CDMA systems
US8165186B2 (en) * 2005-08-12 2012-04-24 Qualcomm Incorporated Channel estimation for wireless communication
US7864885B2 (en) * 2006-11-15 2011-01-04 Samsung Electronics Co., Ltd. Multiple input multiple output (MIMO) transceiver with pooled adaptive digital filtering
US8102795B2 (en) * 2007-03-09 2012-01-24 Qualcomm Incorporated Channel equalization with non-common midamble allocation in 3GPP TD-CDMA systems
US8014424B2 (en) * 2007-06-25 2011-09-06 Qualcomm Incorporated Method and apparatus for using an unique index set for PSC sequence in a wireless communication system
JP5387575B2 (ja) * 2007-08-31 2014-01-15 富士通株式会社 無線通信システム及び無線通信方法
KR101457690B1 (ko) * 2008-03-05 2014-11-04 삼성전자주식회사 통신 시스템에서 간섭 신호를 제거하기 위한 수신 장치 및 방법
KR101402906B1 (ko) * 2008-06-23 2014-06-02 삼성전자주식회사 이동통신 시스템에서 전력 제어를 위한 장치 및 방법
US8428538B2 (en) * 2008-07-09 2013-04-23 Intel Mobile Communications GmbH Channel estimator
US8238482B2 (en) 2008-10-14 2012-08-07 Apple Inc. Techniques for improving channel estimation and tracking in a wireless communication system
KR101556636B1 (ko) * 2008-12-16 2015-10-01 삼성전자주식회사 데이터 채널을 이용한 채널 추정 방법 및 장치
US8830918B2 (en) * 2009-03-16 2014-09-09 Interdigital Patent Holdings, Inc. Method and apparatus for performing uplink transmit diversity
US8615030B2 (en) * 2009-05-04 2013-12-24 Qualcomm Incorporated Method and system for multi-user detection using two-stage processing
US8451963B2 (en) * 2009-06-09 2013-05-28 Qualcomm Incorporated Method and system for interference cancellation
EP2454901A4 (de) * 2009-07-15 2016-08-17 Blackberry Ltd Auswählen aus mehreren kanaleinschätzungstechniken
US9256560B2 (en) * 2009-07-29 2016-02-09 Solarflare Communications, Inc. Controller integration
US8509287B2 (en) * 2009-10-23 2013-08-13 Broadcom Corporation Method and system for diversity processing utilizing a programmable interface suppression module
US8335286B2 (en) * 2009-08-26 2012-12-18 Qualcomm Incorporated Methods for determining decoding order in a MIMO system with successive interference cancellation
US8594238B2 (en) 2009-12-15 2013-11-26 Electronics And Telecommunications Research Institute Apparatus and method for estimating channel in channel domain
KR101329335B1 (ko) * 2009-12-15 2013-11-20 한국전자통신연구원 주파수 영역의 채널 추정 장치 및 방법
US8699553B2 (en) 2010-02-19 2014-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Data-aided SIR estimation
US8396168B2 (en) * 2010-04-15 2013-03-12 Telefonaktiebolaget L M Ericsson (Publ) Channel estimation for equalizer using serial localization with indecision
US8699592B1 (en) 2010-06-11 2014-04-15 Marvell International Ltd. Systems and methods for estimating decoder noise power in OFDM systems
TW201234793A (en) 2011-02-11 2012-08-16 Interdigital Patent Holdings Method and apparatus for closed loop transmit diversity transmission initial access
US9313744B2 (en) 2011-10-28 2016-04-12 Qualcomm Incorporated Method and apparatus for configuring traffic-to-pilot power ratios in heterogeneous networks
WO2013070651A1 (en) * 2011-11-10 2013-05-16 Marvell World Trade Ltd. Channel estimation with decision feedback
WO2014018465A1 (en) * 2012-07-23 2014-01-30 Apple Inc. Methods and systems for adaptive channel estimation/prediction filter design
US8737457B2 (en) * 2012-09-28 2014-05-27 Telefonaktiebolaget L M Ericsson (Publ) Adaptive smoothing of channel estimates
US9485061B2 (en) * 2012-10-12 2016-11-01 Samsung Electronics Co., Ltd. Communication system with flexible repeat-response mechanism and method of operation thereof
US9350587B1 (en) 2012-11-30 2016-05-24 Marvell International Ltd. System and method for timing error estimation
EP2782305B1 (de) 2013-03-20 2019-07-24 ZTE (USA) Inc. An Statistiken anpassungsfähige Soft-Decision-Vorwärtsfehlerkorrektur in digitaler Kommunikation
US9329929B2 (en) 2013-03-20 2016-05-03 Zte (Usa) Inc. Soft maximum likelihood sequence estimation in digital communication
US9553706B2 (en) * 2013-05-15 2017-01-24 Qualcomm Incorporated Channel estimate under non-uniform reference signal pattern
US20150049731A1 (en) * 2013-08-16 2015-02-19 Mitsubishi Electric Research Laboratories, Inc. Method for Coding OFDMA Data without Pilot Symbols
KR102162702B1 (ko) * 2013-10-04 2020-10-07 삼성전자주식회사 무선 통신 시스템에서 채널 추정 방법 및 장치
US9350590B2 (en) * 2013-10-25 2016-05-24 Texas Instruments Incorporated Method, system and apparatus for carrier frequency offset correction and channel estimation
EP2975787B1 (de) 2014-07-16 2018-10-03 ZTE Corporation Adaptiver digitaler nachfilter und interferenzentzerrer zwischen symbolen für optische kommunikation
US9819419B2 (en) 2014-10-07 2017-11-14 Zte Corporation Maximum likelihood sequence estimation of Quadrature Amplitude Modulated signals
US9985802B2 (en) * 2014-10-31 2018-05-29 Qualcomm Incorporated Channel estimation enhancements
CN107820532B (zh) * 2015-07-24 2021-06-11 哈利伯顿能源服务公司 泥浆脉冲遥测中的信道估计的方法及系统
JP6538589B2 (ja) * 2016-02-26 2019-07-03 日本電信電話株式会社 無線通信装置及び干渉低減方法
KR101943984B1 (ko) 2017-02-13 2019-01-31 전남대학교산학협력단 Lte 기반 사이드링크 시스템에서의 채널 추정 방법 및 이를 위한 장치
KR101943985B1 (ko) 2017-02-14 2019-01-31 전남대학교산학협력단 Lte 기반 채널 추정 방법 및 이를 위한 장치
KR101977623B1 (ko) 2017-06-30 2019-05-14 전남대학교산학협력단 고속 링크 적응을 위한 채널 보간 및 예측 방법, 그리고 이를 위한 장치
KR101940749B1 (ko) 2017-08-21 2019-01-22 전남대학교산학협력단 채널 추정 방법 및 이를 위한 장치
KR101943983B1 (ko) 2017-08-22 2019-01-31 전남대학교산학협력단 차량 간 통신에서 채널 추정을 위한 방법 및 이를 위한 장치
CN114424623B (zh) * 2019-09-19 2024-07-16 上海诺基亚贝尔股份有限公司 基于机器学习的信道估计
WO2023287415A1 (en) * 2021-07-14 2023-01-19 Zeku, Inc. Apparatus and method for low power channel estimation
CN113436648B (zh) * 2021-08-26 2021-11-30 深圳市志泽科技有限公司 具有传输信道选择功能的双向通讯系统

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740236A (en) * 1982-12-03 1988-04-26 Ciba-Geigy Corporation N-sulfonyl-imino-thiocarbonic acid diesters as herbicide antagonists for the protection of rice crops
US5572552A (en) 1994-01-27 1996-11-05 Ericsson Ge Mobile Communications Inc. Method and system for demodulation of downlink CDMA signals
JP2746261B2 (ja) 1996-06-10 1998-05-06 日本電気株式会社 Ｄｓ−ｃｄｍａ干渉キャンセル装置
US5872816A (en) * 1996-08-20 1999-02-16 Hughes Electronics Corporation Coherent blind demodulation
JP3335900B2 (ja) 1998-02-27 2002-10-21 松下電器産業株式会社 干渉除去装置及び干渉除去方法
US6381290B1 (en) * 1998-05-15 2002-04-30 Ericsson Inc. Mobile unit for pilot symbol assisted wireless system and method of improving performance thereof
JP2970656B1 (ja) 1998-06-25 1999-11-02 日本電気株式会社 Ｄｓ−ｃｄｍａマルチユーザ干渉キャンセラ
JP3369489B2 (ja) * 1998-11-11 2003-01-20 松下電器産業株式会社 無線通信装置及び無線通信方法
US6442154B1 (en) 1999-04-15 2002-08-27 Ericsson Inc. Method and apparatus for successive cancellation using multiple signal timings
US6414988B1 (en) * 1999-05-12 2002-07-02 Qualcomm Incorporated Amplitude and phase estimation method in a wireless communication system
JP3373457B2 (ja) 1999-08-24 2003-02-04 松下電器産業株式会社 無線受信装置及び無線受信方法
MY133723A (en) 1999-09-17 2007-11-30 Ericsson Telefon Ab L M "apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal"
AU4505901A (en) 1999-11-11 2001-06-04 Voyan Technology Method for design and implementation of fixed-point filters for control and signal processing
EP1122891A1 (de) 2000-01-31 2001-08-08 Telefonaktiebolaget Lm Ericsson Funkempfänger und Verfahren zu dessen Verwendung
US6963546B2 (en) * 2000-03-15 2005-11-08 Interdigital Technology Corp. Multi-user detection using an adaptive combination of joint detection and successive interface cancellation
JP2001326586A (ja) 2000-05-17 2001-11-22 Nec Corp Ｃｄｍａ通信システム及びそれに用いるチャネル推定方法
JP2002043980A (ja) * 2000-07-24 2002-02-08 Matsushita Electric Ind Co Ltd 無線受信装置および無線受信方法
JP2002044172A (ja) 2000-07-26 2002-02-08 Sanyo Electric Co Ltd 位相補正回路および位相補正回路を備えた携帯無線端末
JP3735015B2 (ja) * 2000-07-26 2006-01-11 松下電器産業株式会社 回線推定装置および回線推定方法
JP2002232397A (ja) 2001-01-31 2002-08-16 Ntt Docomo Inc 移動通信システムにおける受信処理方法及び受信装置
US7133435B2 (en) * 2001-06-20 2006-11-07 Texas Instruments Incorporated Interference cancellation system and method
US7230975B2 (en) * 2001-08-07 2007-06-12 Qualcomm Incorporated Adaptive pilot filter for a wireless communication system
US7058144B2 (en) 2001-08-07 2006-06-06 Conexant, Inc. Intelligent control system and method for compensation application in a wireless communications system
US7035659B1 (en) * 2001-10-22 2006-04-25 Via Telecom Co., Ltd. Estimation of forward link signal-to-noise ratio
DE10228103A1 (de) 2002-06-24 2004-01-15 Bayer Cropscience Ag Fungizide Wirkstoffkombinationen
GB2403113B (en) 2002-08-16 2005-05-11 Toshiba Res Europ Ltd Channel estimation and training sequence determination
EP1401164A1 (de) 2002-09-19 2004-03-24 Telefonaktiebolaget Lm Ericsson Bandbreitenabschätzung und adaptive Filterung
JP2004120643A (ja) * 2002-09-27 2004-04-15 Toshiba Corp Ｒａｋｅ受信機とその受信制御プログラム
US7092731B2 (en) * 2003-03-06 2006-08-15 Lucent Technologies Inc. Method for improving capacity of a reverse link channel in a wireless network
JP4167264B2 (ja) 2003-03-10 2008-10-15 サムスン エレクトロニクス カンパニー リミテッド 移動通信システムにおける移動端末機の速度を推定する装置及び方法
US7433433B2 (en) 2003-11-13 2008-10-07 Telefonaktiebolaget L M Ericsson (Publ) Channel estimation by adaptive interpolation
US8165186B2 (en) 2005-08-12 2012-04-24 Qualcomm Incorporated Channel estimation for wireless communication

Also Published As

Publication number Publication date
WO2007021952A3 (en) 2007-04-12
EP2273742B1 (de) 2019-10-16
EP1913745B1 (de) 2011-11-02
KR20100110398A (ko) 2010-10-12
JP2009505510A (ja) 2009-02-05
JP2012034412A (ja) 2012-02-16
TW200718080A (en) 2007-05-01
WO2007021952A2 (en) 2007-02-22
US8437380B2 (en) 2013-05-07
JP2012034413A (ja) 2012-02-16
CN101958730A (zh) 2011-01-26
EP2226949B1 (de) 2020-10-21
TWI340568B (en) 2011-04-11
JP5442697B2 (ja) 2014-03-12
CN101977168A (zh) 2011-02-16
EP1913745A2 (de) 2008-04-23
KR20080033543A (ko) 2008-04-16
MY146679A (en) 2012-09-14
KR101096889B1 (ko) 2011-12-22
US20070104253A1 (en) 2007-05-10
US20110026653A1 (en) 2011-02-03
EP2226949A1 (de) 2010-09-08
US8625656B2 (en) 2014-01-07
EP2273742A3 (de) 2013-03-06
JP5442696B2 (ja) 2014-03-12
ES2373567T3 (es) 2012-02-06
CN101283559A (zh) 2008-10-08
CN101283559B (zh) 2015-02-18
CN101977168B (zh) 2014-04-09
TW201036363A (en) 2010-10-01
US20100158176A1 (en) 2010-06-24
US8165186B2 (en) 2012-04-24
KR101143242B1 (ko) 2012-05-21
CN101958730B (zh) 2013-02-13
KR101185876B1 (ko) 2012-09-26
EP2273742A2 (de) 2011-01-12
JP4897810B2 (ja) 2012-03-14
KR20100008010A (ko) 2010-01-22

Similar Documents

Publication Publication Date Title
ATE532301T1 (de) Kanalschätzung für drahtlose kommunikation
IL182471A0 (en) Log-likelihood estimation based on channel estimation errors due to guard subbands
TW200601755A (en) Channel estimation for a wireless communication system with multiple parallel data streams
DE602004029333D1 (de) Kommunikationsempfänger mit einem adaptiven entzerrer, welcher kanalschätzung verwendet
IL184022A0 (en) Channel estimation for interference cancellation
WO2009028655A1 (ja) 複素環化合物およびその用途
DE60335496D1 (de) Fading-frequenzschätzvorrichtung
DE602006004830D1 (de) Optischer Empfänger für differentielle DQPSK Modulation
DE602004031285D1 (de) Kanalschätzung eines empfangenen mehrweg cdma-signals
EP2158711A4 (de) Gleichfrequenzverstärker mit agc-stabilitätsbestimmung
DE602004011208D1 (de) OFDM Empfänger mit Intersymbolinterferenzunterdrückung
ATE472882T1 (de) Iterative kanal- und störungsschätzung mit fest zugeordneten pilottönen für ofdma
DE602005010625D1 (de) Empfänger zur Interferenzunterdrückung mit einer einzigen Antenne, mit verbesserter entscheidungsrückgekoppelter Entzerrung für GSM Systeme
ATE524908T1 (de) Kommunikationsempfänger mit einer veränderlichen entzerrerlänge
ATE412296T1 (de) Kleinste quadrate kanalschätzung mit korrektur von farbigem rauschen
EP1820282A4 (de) Adaptive kanalschätzung mit niedriger komplexität
DE60332837D1 (de) Streifenmusterdiskriminator für einen interferometer mit streifendem einfall
ATE408294T1 (de) Iterative vorwärts-rückwärts-schätzung
EP1829261A4 (de) Kanalschschätzer mit erweiterter kanalbandbreite
ATE400954T1 (de) Kanalschätzung mit verminderter komplexität in ofdm-systemen
AU2003241486A1 (en) Adaptive thresholding algorithm for the noise due to unknown symbols in correlation based channel impulse response (cir) estimate
FIU20060339U0 (fi) Alhaisen kohinatason korvanappi-lähetin-vastaanotin
DE602004028544D1 (de) Interferenzsignalerkennung und Kanalschätzung für drahtlose Kommunikationsnetze
GB2522361A (en) Coefficient-specific filtering of initial channel estimates
WO2006107910A3 (en) Channel estimation using linearly-constrained filter coefficients