KR100204599B1 - 적응형 직병렬 혼합 잡음 제거 방법 - Google Patents

적응형 직병렬 혼합 잡음 제거 방법 Download PDF

Info

Publication number
KR100204599B1
KR100204599B1 KR1019960069401A KR19960069401A KR100204599B1 KR 100204599 B1 KR100204599 B1 KR 100204599B1 KR 1019960069401 A KR1019960069401 A KR 1019960069401A KR 19960069401 A KR19960069401 A KR 19960069401A KR 100204599 B1 KR100204599 B1 KR 100204599B1
Authority
KR
South Korea
Prior art keywords
signal
noise cancellation
noise
detectors
user
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
KR1019960069401A
Other languages
English (en)
Korean (ko)
Other versions
KR19980050570A (ko
Inventor
김성락
이정구
박남진
이헌
Original Assignee
정선종
한국전자통신연구원
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 정선종, 한국전자통신연구원 filed Critical 정선종
Priority to KR1019960069401A priority Critical patent/KR100204599B1/ko
Priority to US08/977,826 priority patent/US6067333A/en
Priority to JP32785597A priority patent/JP4010348B2/ja
Publication of KR19980050570A publication Critical patent/KR19980050570A/ko
Application granted granted Critical
Publication of KR100204599B1 publication Critical patent/KR100204599B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H04B1/71075—Parallel interference cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
KR1019960069401A 1996-12-21 1996-12-21 적응형 직병렬 혼합 잡음 제거 방법 Expired - Fee Related KR100204599B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960069401A KR100204599B1 (ko) 1996-12-21 1996-12-21 적응형 직병렬 혼합 잡음 제거 방법
US08/977,826 US6067333A (en) 1996-12-21 1997-11-25 Adaptive serial and parallel mixed interference cancellation method
JP32785597A JP4010348B2 (ja) 1996-12-21 1997-11-28 適応型直並列混合雑音除去方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960069401A KR100204599B1 (ko) 1996-12-21 1996-12-21 적응형 직병렬 혼합 잡음 제거 방법

Publications (2)

Publication Number Publication Date
KR19980050570A KR19980050570A (ko) 1998-09-15
KR100204599B1 true KR100204599B1 (ko) 1999-06-15

Family

ID=19489910

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960069401A Expired - Fee Related KR100204599B1 (ko) 1996-12-21 1996-12-21 적응형 직병렬 혼합 잡음 제거 방법

Country Status (3)

Country Link
US (1) US6067333A (enExample)
JP (1) JP4010348B2 (enExample)
KR (1) KR100204599B1 (enExample)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100255565B1 (ko) * 1997-12-26 2000-05-01 정선종 코드분할 다중접속 시스템의 비동기 다중 경로 채널에서의다중 모드 감산형 잡음 제거 방법 및 장치
US6647022B1 (en) * 1998-08-07 2003-11-11 Lucent Technologies Inc. Interference canceller
US6498784B1 (en) * 1998-10-20 2002-12-24 Interdigital Technology Corporation Cancellation of pilot and traffic signals
US6298050B1 (en) * 1998-11-25 2001-10-02 Nortel Networks Limited System and method for cancelling the extra interference created during position location in a CDMA cellular system
US7349463B1 (en) * 1999-06-11 2008-03-25 Nokia Corporation Method and apparatus for performing interference estimation
DE19935480A1 (de) 1999-07-28 2001-02-22 Infineon Technologies Ag Verfahren zur Schätzung der Kanalimpulsantworten eines Mobilfunkkanals
KR100586587B1 (ko) * 1999-12-31 2006-06-02 주식회사 케이티 코드 분할 다중 접속 시스템을 위한 파이프라인화된 직렬간섭 제거기
AU2001250925A1 (en) 2000-03-21 2001-10-03 Telcordia Technologies, Inc. Combined adaptive spatio-temporal processing and multi-user detection for cdma wireless systems
JP3574057B2 (ja) * 2000-09-04 2004-10-06 三洋電機株式会社 無線受信システム及び方法
KR100358349B1 (ko) * 2000-11-22 2002-10-25 한국전자통신연구원 다중전송속도를 가지는 코드분할다중접속시스템의 그룹별병렬 간섭제거장치 및 방법
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
US6959065B2 (en) * 2001-04-20 2005-10-25 Telefonaktiebolaget Lm Ericsson (Publ) Reduction of linear interference canceling scheme
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US8611311B2 (en) * 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
FR2828032B1 (fr) * 2001-07-30 2003-09-12 France Telecom Dispositif de detection conjointe de codes cdma pour liaison descendante a trajets multiples
US7602866B2 (en) * 2002-02-28 2009-10-13 Telefonaktiebolaget Lm Ericsson (Publ) Signal receiver devices and methods
US7808937B2 (en) * 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US20050123080A1 (en) * 2002-11-15 2005-06-09 Narayan Anand P. Systems and methods for serial cancellation
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
US6710739B1 (en) 2003-01-03 2004-03-23 Northrop Grumman Corporation Dual redundant GPS anti-jam air vehicle navigation system architecture and method
US7305052B2 (en) * 2003-05-28 2007-12-04 The Regents Of The University Of California UWB communication receiver feedback loop
GB2411546B (en) * 2004-02-27 2007-05-30 Toshiba Res Europ Ltd Channel Estimation in a CDMA Receiver
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
US8442441B2 (en) * 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US8406695B2 (en) 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8472877B2 (en) * 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8385388B2 (en) * 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
JP4946159B2 (ja) * 2006-05-09 2012-06-06 富士通株式会社 無線送信方法及び無線受信方法並びに無線送信装置及び無線受信装置
KR100858976B1 (ko) * 2006-12-06 2008-09-17 한국전자통신연구원 이동 통신 시스템의 직렬형 다중 간섭 잡음 제거 장치 및그 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5740208A (en) * 1993-06-25 1998-04-14 Roke Manor Research Limited Interference cancellation apparatus for mitigating the effects of poor affiliation between a base station and a mobile unit
US5872776A (en) * 1995-11-22 1999-02-16 Yang; Lin-Lang Signal detection and interference cancellation based on simplified matrix inversion for CDMA applications
JP2743912B2 (ja) * 1996-05-30 1998-04-28 日本電気株式会社 Ｃｄｍａ干渉除去装置
US5872540A (en) * 1997-06-26 1999-02-16 Electro-Radiation Incorporated Digital interference suppression system for radio frequency interference cancellation

Also Published As

Publication number Publication date
JPH10190622A (ja) 1998-07-21
KR19980050570A (ko) 1998-09-15
JP4010348B2 (ja) 2007-11-21
US6067333A (en) 2000-05-23

Similar Documents

Publication Publication Date Title
KR100204599B1 (ko) 적응형 직병렬 혼합 잡음 제거 방법
US6473415B1 (en) Interference canceling method and apparatus of a multi-mode subtraction type in asynchronous multipath channels of code division multiple access system
KR100473586B1 (ko) 다중사용자부호분할다중접속수신기
KR100357018B1 (ko) Cdma신호의결합복조를위한시스템및방법
US6798737B1 (en) Use of Walsh-Hadamard transform for forward link multiuser detection in CDMA systems
EP0849886B1 (en) Multistage interference canceller for a code division multiple access communications system
JP5412657B2 (ja) チップ・レベルの等化を有する受信機
JP2000224077A (ja) 受信信号よりカラ―ドノイズを除去する方法及びカラ―ドノイズの存在下で信号対雑音比を最大にするための受信装置
EP0993127A1 (en) Method and apparatus using Walsh-Hadamard transformation for forward link multiuser detection in CDMA systems
EP0711473B1 (en) Ambiguity resolution in direct sequence spread spectrum modulation systems
JP2003152682A (ja) 干渉除去方法、干渉除去装置及び受信装置
JP3886709B2 (ja) スペクトル拡散受信装置
US7027491B2 (en) Interference cancellation receiver for use in a CDMA system
KR100358349B1 (ko) 다중전송속도를 가지는 코드분할다중접속시스템의 그룹별병렬 간섭제거장치 및 방법
Kim et al. Interference cancellation scheme with simple structure and better performance
JP2853741B2 (ja) Ｃｄｍａ用受信装置
Soong et al. CDMA multi-user interference cancellation with reference symbol aided estimation of channel parameters
Dae-Joong et al. Multiuser detection using blockwise successive interference cancellation in DS/CDMA systems
KR200198326Y1 (ko) 다중 경로 간섭 제거기
RU2225073C2 (ru) Способ приема многолучевого широкополосного сигнала и устройство для его осуществления
KR20070061694A (ko) 이동통신 기지국에서의 다중간섭 잡음제거 기능을 통한채널 추정 방법 및 장치
Dahmane et al. A nonlinear multiuser receiver for UMTS communications
KR100384897B1 (ko) 이동통신 시스템에서 적어도 하나의 제약 조건을 갖는적응 레이크 수신 장치 및 그 방법
KR100833649B1 (ko) 이동 통신 시스템의 그룹형 다중 간섭 잡음 제거 장치 및그 방법
KR20010095459A (ko) 다중 경로 간섭 제거기

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PA0201 Request for examination

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

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

PG1501 Laying open of application

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

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

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-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

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

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PR1001 Payment of annual fee

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

Fee payment year number: 4

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PR1001 Payment of annual fee

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

Fee payment year number: 5

PR1001 Payment of annual fee

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

Fee payment year number: 6

PR1001 Payment of annual fee

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

Fee payment year number: 7

PR1001 Payment of annual fee

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

Fee payment year number: 8

PR1001 Payment of annual fee

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

Fee payment year number: 9

PR1001 Payment of annual fee

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

Fee payment year number: 10

R17-X000 Change to representative recorded

St.27 status event code: A-5-5-R10-R17-oth-X000

PR1001 Payment of annual fee

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

Fee payment year number: 11

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PR1001 Payment of annual fee

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

Fee payment year number: 12

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PR1001 Payment of annual fee

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

Fee payment year number: 13

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R14-asn-PN2301

PR1001 Payment of annual fee

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

Fee payment year number: 14

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R11-asn-PN2301

FPAY Annual fee payment

Payment date: 20130321

Year of fee payment: 15

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R14-asn-PN2301

PR1001 Payment of annual fee

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

Fee payment year number: 15

FPAY Annual fee payment

Payment date: 20140320

Year of fee payment: 16

PR1001 Payment of annual fee

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

Fee payment year number: 16

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301

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: 20150330

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: 20150330