KR100943227B1 - 채널 추정을 위한 임계 파라미터의 선택 - Google Patents

채널 추정을 위한 임계 파라미터의 선택 Download PDF

Info

Publication number
KR100943227B1
KR100943227B1 KR1020077020709A KR20077020709A KR100943227B1 KR 100943227 B1 KR100943227 B1 KR 100943227B1 KR 1020077020709 A KR1020077020709 A KR 1020077020709A KR 20077020709 A KR20077020709 A KR 20077020709A KR 100943227 B1 KR100943227 B1 KR 100943227B1
Authority
KR
South Korea
Prior art keywords
channel
cire
threshold parameter
parameter value
threshold
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
KR1020077020709A
Other languages
English (en)
Korean (ko)
Other versions
KR20070108906A (ko
Inventor
아나스타시오즈 스타모우리스
듀가 프라세드 말라디
Original Assignee
콸콤 인코포레이티드
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 콸콤 인코포레이티드 filed Critical 콸콤 인코포레이티드
Publication of KR20070108906A publication Critical patent/KR20070108906A/ko
Application granted granted Critical
Publication of KR100943227B1 publication Critical patent/KR100943227B1/ko
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
    • 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
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0256—Channel estimation using minimum mean square error criteria
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0258—Channel estimation using zero-forcing criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Error Detection And Correction (AREA)
KR1020077020709A 2005-02-11 2006-02-13 채널 추정을 위한 임계 파라미터의 선택 Expired - Fee Related KR100943227B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US65223605P 2005-02-11 2005-02-11
US60/652,236 2005-02-11
US11/351,683 US8761312B2 (en) 2005-02-11 2006-02-10 Selection of a thresholding parameter for channel estimation
US11/351,683 2006-02-10

Publications (2)

Publication Number Publication Date
KR20070108906A KR20070108906A (ko) 2007-11-13
KR100943227B1 true KR100943227B1 (ko) 2010-02-18

Family

ID=36501922

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020077020709A Expired - Fee Related KR100943227B1 (ko) 2005-02-11 2006-02-13 채널 추정을 위한 임계 파라미터의 선택

Country Status (9)

Country Link
US (1) US8761312B2 (enExample)
EP (1) EP1847085A1 (enExample)
JP (2) JP4842974B2 (enExample)
KR (1) KR100943227B1 (enExample)
CN (1) CN101120560B (enExample)
BR (1) BRPI0608279A2 (enExample)
CA (1) CA2597599C (enExample)
RU (1) RU2379846C2 (enExample)
WO (1) WO2006086786A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101850621B1 (ko) * 2016-11-02 2018-04-20 중앙대학교 산학협력단 협력 스펙트럼 센싱 방법 및 그 장치

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439366A (en) * 2006-06-20 2007-12-27 Nec Technologies Resource block scheduling in communication networks
US8363536B2 (en) * 2006-08-28 2013-01-29 Qualcomm Incorporated OFDM channel estimation
DE102006056158B4 (de) * 2006-11-28 2011-11-17 Infineon Technologies Ag Kanalschätzung für OFDM Systeme
US8630256B2 (en) 2006-12-05 2014-01-14 Qualcomm Incorporated Method and system for reducing backhaul utilization during base station handoff in wireless networks
WO2008082120A1 (en) * 2006-12-31 2008-07-10 Posdata Co., Ltd. Apparatus and method for detecting the ack/nack signal in a wireless communication system
KR100865937B1 (ko) * 2006-12-31 2008-10-29 포스데이타 주식회사 무선통신 시스템에서의 ａｃｋ/ｎａｃｋ 정보 탐지 장치 및방법
US8300742B1 (en) * 2007-11-21 2012-10-30 Bromberg Matthew C Systems and methods for channel based beamforming for stacked carrier multiple access
JP2009141514A (ja) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> チャネル推定装置及び無線通信システム
KR101455273B1 (ko) * 2008-07-01 2014-10-27 삼성전자주식회사 이동통신 시스템의 채널 추정 장치 및 방법
US9031053B2 (en) * 2008-10-23 2015-05-12 Qualcomm Incorporated Method and apparatus for communicating in a relay communication network
US8634769B2 (en) * 2008-10-23 2014-01-21 Qualcomm Incorporated Data reception with interference cancellation in a relay communication network
US8243836B2 (en) * 2008-12-17 2012-08-14 Electronics And Telecommunications Research Institute Channel estimation apparatus and method in mobile communication system having dispersed pilot
US8290462B2 (en) * 2009-02-04 2012-10-16 Agere Systems Llc Receiver and method for estimating a plurality of estimated transfer functions corresponding to wireless channels in a multiple-input system
CN101895489B (zh) * 2009-05-20 2013-05-08 中兴通讯股份有限公司 一种信道估计的滤波方法及滤波装置
CN102131277B (zh) * 2010-01-19 2014-11-05 中兴通讯股份有限公司 一种td-scdma系统多业务并行下的终端信道估计方法和系统
WO2011140719A1 (en) * 2010-05-14 2011-11-17 Zte Wistron Telecom Ab Method and apparatus for channel estimation in lte
US8744082B2 (en) 2010-11-03 2014-06-03 Futurewei Technologies, Inc. System and method for securing wireless communications
US8842750B2 (en) * 2010-12-21 2014-09-23 Intel Corporation Channel estimation for DVB-T2 demodulation using an adaptive prediction technique
US9313074B2 (en) * 2011-12-31 2016-04-12 Zte Corporation Method and system for detecting FSS by peak threshold, and receiver
US9614700B2 (en) * 2013-01-02 2017-04-04 Qualcomm Incorporated Techniques for channel estimation in millimeter-wave communication systems
US9240864B2 (en) * 2013-09-12 2016-01-19 Qualcomm Incorporated Blind CRS detection
CN106507364B (zh) * 2016-11-23 2019-09-27 广东工业大学 一种避免室内无线通信恶意攻击的方法及系统
US10616005B1 (en) * 2018-11-28 2020-04-07 Samsung Electronics Co., Ltd. Robust noise power estimation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0966113A1 (en) * 1998-06-19 1999-12-22 Motorola Semiconducteurs S.A. Method and apparatus for performing equalisation in a radio receiver
WO2002082683A2 (en) * 2001-04-03 2002-10-17 Nortel Networks Limited Frequency domain channel estimation for multiple channels using wiener minimum mean squared error (mmse) filtering

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409593A (en) 1982-01-11 1983-10-11 General Electric Company Threshold-less collision detection and bit arbitration in a CFSK data system
SU1225023A2 (ru) 1984-11-06 1986-04-15 Войсковая Часть 25840 Устройство дл контрол каналов св зи по отношению сигнал/помеха
US5251233A (en) * 1990-12-20 1993-10-05 Motorola, Inc. Apparatus and method for equalizing a corrupted signal in a receiver
JP2725493B2 (ja) 1991-08-27 1998-03-11 日本電気株式会社 空冷式アルゴンイオンレーザ管
WO1994029971A1 (fr) 1993-06-07 1994-12-22 Alcatel Mobile Communication France Paquet de signalisation pour systeme de communication avec reference modulee suivant une loi fonction du temps
JP3102221B2 (ja) 1993-09-10 2000-10-23 三菱電機株式会社 適応等化器および適応ダイバーシチ等化器
RU2214686C2 (ru) 1997-10-23 2003-10-20 Телефонактиеболагет Лм Эрикссон (Пабл) Произвольный доступ в системе мобильной связи
JP2963895B1 (ja) * 1998-07-06 1999-10-18 株式会社次世代デジタルテレビジョン放送システム研究所 直交周波数分割多重方式受信装置
US6393068B1 (en) 1998-09-22 2002-05-21 Agere Systems Guardian Corp. Communication channel and frequency offset estimator
RU2157053C1 (ru) 1999-01-26 2000-09-27 Государственное унитарное предприятие Воронежский научно-исследовательский институт связи Устройство для приема стартстопных сообщений
FI113721B (fi) 1999-12-15 2004-05-31 Nokia Corp Menetelmä ja vastaanotin kanavaestimaatin iteratiiviseksi parantamiseksi
US6907092B1 (en) 2000-07-14 2005-06-14 Comsys Communication & Signal Processing Ltd. Method of channel order selection and channel estimation in a wireless communication system
JP4187968B2 (ja) 2000-12-19 2008-11-26 株式会社エヌ・ティ・ティ・ドコモ 適応等化方法及び適応等化器
US20020176485A1 (en) * 2001-04-03 2002-11-28 Hudson John E. Multi-cast communication system and method of estimating channel impulse responses therein
JP2004104225A (ja) 2002-09-05 2004-04-02 Matsushita Electric Ind Co Ltd Ｃｄｍａ受信装置及びフィンガ割り当て方法
JP2004158933A (ja) * 2002-11-01 2004-06-03 Matsushita Electric Ind Co Ltd 同期追従装置及び方法
JP4523294B2 (ja) 2003-02-10 2010-08-11 三菱電機株式会社 通信装置
KR100943272B1 (ko) 2003-02-18 2010-02-23 삼성전자주식회사 디지털 통신 시스템의 채널 추정 장치 및 그의 채널 추정방법
US7203257B2 (en) 2003-05-23 2007-04-10 Zenith Electronics Corporation Best linear unbiased channel estimation for frequency selective multipath channels with long delay spreads
JP4204917B2 (ja) 2003-07-31 2009-01-07 Ｋｄｄｉ株式会社 伝送路特性推定装置、コンピュータプログラム
US20060128326A1 (en) * 2004-12-09 2006-06-15 Interdigital Technology Corporation Low complexity adaptive channel estimation
JP2006262039A (ja) 2005-03-17 2006-09-28 Fujitsu Ltd 伝搬路推定方法及び伝搬路推定装置
JP4189389B2 (ja) 2005-04-06 2008-12-03 パナソニック株式会社 等化装置および等化方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0966113A1 (en) * 1998-06-19 1999-12-22 Motorola Semiconducteurs S.A. Method and apparatus for performing equalisation in a radio receiver
WO2002082683A2 (en) * 2001-04-03 2002-10-17 Nortel Networks Limited Frequency domain channel estimation for multiple channels using wiener minimum mean squared error (mmse) filtering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101850621B1 (ko) * 2016-11-02 2018-04-20 중앙대학교 산학협력단 협력 스펙트럼 센싱 방법 및 그 장치

Also Published As

Publication number Publication date
RU2007133813A (ru) 2009-03-20
US8761312B2 (en) 2014-06-24
JP2008538263A (ja) 2008-10-16
BRPI0608279A2 (pt) 2009-12-15
CA2597599A1 (en) 2006-08-17
CN101120560A (zh) 2008-02-06
JP4842974B2 (ja) 2011-12-21
RU2379846C2 (ru) 2010-01-20
EP1847085A1 (en) 2007-10-24
JP5329614B2 (ja) 2013-10-30
US20060227748A1 (en) 2006-10-12
JP2012010377A (ja) 2012-01-12
KR20070108906A (ko) 2007-11-13
WO2006086786A1 (en) 2006-08-17
CN101120560B (zh) 2010-11-03
CA2597599C (en) 2012-01-24

Similar Documents

Publication Publication Date Title
KR100943227B1 (ko) 채널 추정을 위한 임계 파라미터의 선택
KR100874620B1 (ko) 가드 서브밴드에 기인한 채널 추정 에러에 기반한 로그가능성 추정
US8903021B2 (en) Channel estimation for an OFDM communicaiton system with inactive subbands
EP1861972B1 (en) Channel estimation optimization
CN101682588B (zh) 用于ofdm系统的信道估计器
KR100956045B1 (ko) 무선 통신에 대한 블록-와이즈 판정-피드백 등화를 위한방법 및 장치
Han et al. An iterative joint channel estimation and symbol detection algorithm applied in OFDM system with high data to pilot power ratio
US7826342B2 (en) Correlation method for channel estimation for OFDM
WO2010033684A2 (en) Truncation of noisy taps in channel estimation
US20140010272A1 (en) Pilot Signal Cancellation Scheme for Mobile Broadband Systems Based on OFDM
Alihemmati et al. On channel estimation and equalization in OFDM based broadband fixed wireless MAN networks
Zourob et al. 2× 1-D fast Fourier transform interpolation for LTE-A OFDM pilot-based channel estimation
TWI400913B (zh) 用於頻道估計之臨界參數的選擇
HK1113871A (en) Selection of a thresholding parameter for channel estimation
KR20080094415A (ko) 다중 안테나 시스템에서 셀 간섭 신호 제거 방법 및 장치
EP2479946A1 (en) Low complexity adaptive channel interpolation
Nerma et al. Performance Evaluation of LMS and VSS-LMS Channel Estimation Techniques for LTE Uplink under Different Modulation Types

Legal Events

Date Code Title Description
A201 Request for examination
PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

P22-X000 Classification modified

St.27 status event code: A-2-2-P10-P22-nap-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

AMND Amendment
P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E601 Decision to refuse application
PE0601 Decision on rejection of patent

St.27 status event code: N-2-6-B10-B15-exm-PE0601

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

J201 Request for trial against refusal decision
PJ0201 Trial against decision of rejection

St.27 status event code: A-3-3-V10-V11-apl-PJ0201

AMND Amendment
P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PB0901 Examination by re-examination before a trial

St.27 status event code: A-6-3-E10-E12-rex-PB0901

B701 Decision to grant
PB0701 Decision of registration after re-examination before a trial

St.27 status event code: A-3-4-F10-F13-rex-PB0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U12-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

FPAY Annual fee payment

Payment date: 20130130

Year of fee payment: 4

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

FPAY Annual fee payment

Payment date: 20140129

Year of fee payment: 5

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 5

FPAY Annual fee payment

Payment date: 20150129

Year of fee payment: 6

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 6

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20160212

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20160212

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000