IL134887A - Device and method for cancelling code interference in a cdma communication system - Google Patents

Device and method for cancelling code interference in a cdma communication system

Info

Publication number
IL134887A
IL134887A IL13488799A IL13488799A IL134887A IL 134887 A IL134887 A IL 134887A IL 13488799 A IL13488799 A IL 13488799A IL 13488799 A IL13488799 A IL 13488799A IL 134887 A IL134887 A IL 134887A
Authority
IL
Israel
Prior art keywords
orthogonal
quasi
channel
orthogonal code
receiver
Prior art date
Application number
IL13488799A
Other languages
English (en)
Other versions
IL134887A0 (en
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of IL134887A0 publication Critical patent/IL134887A0/xx
Publication of IL134887A publication Critical patent/IL134887A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • H04B1/7107Subtractive interference cancellation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/023Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H04L5/026Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] using code division
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/004Orthogonal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03178Arrangements involving sequence estimation techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03178Arrangements involving sequence estimation techniques
    • H04L25/03248Arrangements for operating in conjunction with other apparatus
    • H04L25/0328Arrangements for operating in conjunction with other apparatus with interference cancellation circuitry

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
IL13488799A 1998-07-07 1999-07-07 Device and method for cancelling code interference in a cdma communication system IL134887A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019980027736A KR100318959B1 (ko) 1998-07-07 1998-07-07 부호분할다중접속통신시스템의서로다른부호간의간섭을제거하는장치및방법
PCT/KR1999/000364 WO2000002397A2 (fr) 1998-07-07 1999-07-07 Dispositif et procede pour la suppression d'interference de code dans un systeme de telecommunications cdma

Publications (2)

Publication Number Publication Date
IL134887A0 IL134887A0 (en) 2001-05-20
IL134887A true IL134887A (en) 2004-02-08

Family

ID=19543659

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13488799A IL134887A (en) 1998-07-07 1999-07-07 Device and method for cancelling code interference in a cdma communication system

Country Status (11)

Country Link
US (1) US6459693B1 (fr)
EP (1) EP1021882B1 (fr)
KR (1) KR100318959B1 (fr)
CN (1) CN1119883C (fr)
AU (1) AU729216C (fr)
BR (1) BR9906577A (fr)
CA (1) CA2302340C (fr)
DE (1) DE69929029T2 (fr)
IL (1) IL134887A (fr)
RU (1) RU2213423C2 (fr)
WO (1) WO2000002397A2 (fr)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324159B1 (en) * 1998-05-06 2001-11-27 Sirius Communications N.V. Method and apparatus for code division multiple access communication with increased capacity through self-noise reduction
KR20000009140A (ko) * 1998-07-21 2000-02-15 윤종용 확산대역 통신시스템의 초기 포착 및 프레임동기 장치 및 방법
EP2141820B1 (fr) * 1999-01-11 2013-09-25 Samsung Electronics Co., Ltd. Procédé de génération de code quasi-orthogonal complexe et appareil et procédé de dispersion de données de canal utilisant le code quasi-orthogonal dans un système de communication CDMA
US7151761B1 (en) * 1999-03-19 2006-12-19 Telefonaktiebolaget L M Ericsson (Publ) Code reservation for interference measurement in a CDMA radiocommunication system
GB2351864B (en) * 1999-07-05 2004-05-26 Symmetricom Inc A receiver for receiving rf pseudo-random encoded signals
US6885691B1 (en) * 1999-08-02 2005-04-26 Lg Information & Communications, Ltd. Scrambling codes and channelization codes for multiple chip rate signals in CDMA cellular mobile radio communication system
US6768908B1 (en) * 2000-04-07 2004-07-27 Motorola, Inc. Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
GB2369018A (en) * 2000-11-10 2002-05-15 Ubinetics Ltd Control channel interference cancellation for a CDMA receiver
US6750818B2 (en) 2000-12-04 2004-06-15 Tensorcomm, Inc. Method and apparatus to compute the geolocation of a communication device using orthogonal projections
US6856945B2 (en) * 2000-12-04 2005-02-15 Tensorcomm, Inc. Method and apparatus for implementing projections in singal processing applications
US6711219B2 (en) 2000-12-04 2004-03-23 Tensorcomm, Incorporated Interference cancellation in a signal
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
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
AU2003203918B2 (en) * 2001-01-31 2004-08-12 Ntt Docomo, Inc. Receiving Process Method and Receiving Apparatus in Mobile Communication System
US8611311B2 (en) 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7190749B2 (en) 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7158559B2 (en) 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7200183B2 (en) * 2001-11-16 2007-04-03 Tensorcomm Inc. Construction of an interference matrix for a coded signal processing engine
US7430253B2 (en) 2002-10-15 2008-09-30 Tensorcomm, Inc Method and apparatus for interference suppression with efficient matrix inversion in a DS-CDMA system
WO2005081438A1 (fr) * 2001-11-19 2005-09-01 Tensorcomm, Incorporated Annulation de brouillage dans un signal
US7260506B2 (en) 2001-11-19 2007-08-21 Tensorcomm, Inc. Orthogonalization and directional filtering
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US8761321B2 (en) 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US7463609B2 (en) 2005-07-29 2008-12-09 Tensorcomm, Inc Interference cancellation within wireless transceivers
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US7577186B2 (en) 2002-09-20 2009-08-18 Tensorcomm, Inc Interference matrix construction
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
EP1550233B1 (fr) 2002-09-23 2012-11-07 Rambus Inc. Procédé et dispositif pour appliquer de manière sélective une annulation d'interférence dans des systèmes à étalement de spectre
EP1579591B1 (fr) 2002-10-15 2012-06-06 Rambus Inc. Procede et dispositif d'estimation d'amplitude de canaux et de construction de vecteurs d'interference
WO2004073159A2 (fr) 2002-11-15 2004-08-26 Tensorcomm, Incorporated Systemes et procedes d'elimination de signaux paralleles
CN1751489B (zh) * 2003-01-07 2010-06-16 高通股份有限公司 无线多载波通信系统的导频传输方案
US7477710B2 (en) 2004-01-23 2009-01-13 Tensorcomm, Inc Systems and methods for analog to digital conversion with a signal cancellation system of a receiver
US7668134B2 (en) * 2004-03-05 2010-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Optimal frequency of walsh mask broadcast for forward high-speed packet data channels
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US7567621B2 (en) * 2004-07-21 2009-07-28 Qualcomm Incorporated Capacity based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
DE102004047424A1 (de) * 2004-09-28 2006-04-06 Micronas Gmbh Schaltung und Verfahren zur Trägerrückgewinnung
DE102004048572A1 (de) * 2004-10-04 2006-04-13 Micronas Gmbh Verfahren sowie Schaltungsanordnung zur Unterdrückung einer orthogonalen Störung
US7573851B2 (en) 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US8406695B2 (en) 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8442441B2 (en) 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
CN100442724C (zh) 2005-09-16 2008-12-10 华为技术有限公司 多用户通讯线路串扰测试方法及设备
US8472877B2 (en) 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US8385388B2 (en) 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
US7940833B2 (en) * 2006-06-21 2011-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Transmitter with intelligent preconditioning of amplifier signal
WO2008003061A2 (fr) * 2006-06-28 2008-01-03 Maxlinear, Inc. Procédé et appareil pour étalonner le rejet en bande latérale d'un récepteur
US8854944B2 (en) * 2009-01-17 2014-10-07 Qualcomm Incorporated Methods and apparatus for interference cancellation
RU2439794C1 (ru) * 2010-10-26 2012-01-10 Открытое акционерное общество "Концерн "Созвездие" Помехоустойчивая система радиосвязи
KR20120047449A (ko) * 2010-11-04 2012-05-14 삼성전자주식회사 가중치를 고려하는 피아이씨 채널 추정기를 위한 방법 및 장치
CN105704073B (zh) * 2014-11-28 2019-07-09 联芯科技有限公司 一种干扰消除方法及装置
US10020839B2 (en) * 2016-11-14 2018-07-10 Rampart Communications, LLC Reliable orthogonal spreading codes in wireless communications
KR101958075B1 (ko) * 2017-02-03 2019-03-13 연세대학교 산학협력단 신호 간섭을 제거하는 방법, 기지국 및 사용자 단말
CA3078841C (fr) 2017-10-09 2024-04-09 Taylor Commercial Foodservice Inc. Verrou pour gril mobile
US10965352B1 (en) 2019-09-24 2021-03-30 Rampart Communications, Inc. Communication system and methods using very large multiple-in multiple-out (MIMO) antenna systems with extremely large class of fast unitary transformations

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715508A (en) * 1967-09-15 1973-02-06 Ibm Switching circuits employing orthogonal and quasi-orthogonal pseudo-random code sequences
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH0779281B2 (ja) * 1990-09-21 1995-08-23 日本ビクター株式会社 スペクトル拡散変調復調装置
JPH0831838B2 (ja) * 1992-03-18 1996-03-27 国際電信電話株式会社 スペクトラム拡散通信システム
US5550809A (en) * 1992-04-10 1996-08-27 Ericsson Ge Mobile Communications, Inc. Multiple access coding using bent sequences for mobile radio communications
JP2721473B2 (ja) * 1992-06-29 1998-03-04 三菱電機株式会社 スペクトル拡散通信用受信装置
FR2706704B1 (fr) * 1993-06-09 1995-07-13 Alcatel Telspace Système de transmission numérique à étalement de spectre obtenu par codage pseudo-aléatoire basse fréquence de l'information utile et procédé d'étalement et de compression de spectre utilisé dans un tel système.
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
US5521937A (en) * 1993-10-08 1996-05-28 Interdigital Technology Corporation Multicarrier direct sequence spread system and method
US5659573A (en) * 1994-10-04 1997-08-19 Motorola, Inc. Method and apparatus for coherent reception in a spread-spectrum receiver
US5602833A (en) * 1994-12-19 1997-02-11 Qualcomm Incorporated Method and apparatus for using Walsh shift keying in a spread spectrum communication system
JP3000037B2 (ja) * 1995-09-08 2000-01-17 エヌ・ティ・ティ移動通信網株式会社 通信方法及び同通信方法のための装置
KR100365346B1 (ko) * 1997-09-09 2003-04-11 삼성전자 주식회사 이동통신시스템의쿼시직교부호생성및쿼시직교부호를이용한대역확산장치및방법
KR20000024783A (ko) * 1998-10-01 2000-05-06 정선종 다중 반송파 부호분할다중접속방식의 기지국 시스템, 그의 다중코드 파형 발생방법 및 이를 이용한 이동통신 시스템

Also Published As

Publication number Publication date
CA2302340A1 (fr) 2000-01-13
EP1021882A2 (fr) 2000-07-26
AU729216C (en) 2001-10-18
KR20000008080A (ko) 2000-02-07
IL134887A0 (en) 2001-05-20
AU4656299A (en) 2000-01-24
KR100318959B1 (ko) 2002-04-22
US6459693B1 (en) 2002-10-01
DE69929029T2 (de) 2006-06-22
BR9906577A (pt) 2000-12-05
AU729216B2 (en) 2001-01-25
WO2000002397A3 (fr) 2000-03-30
CN1273721A (zh) 2000-11-15
CN1119883C (zh) 2003-08-27
CA2302340C (fr) 2006-05-30
EP1021882B1 (fr) 2005-12-21
RU2213423C2 (ru) 2003-09-27
WO2000002397A2 (fr) 2000-01-13
DE69929029D1 (de) 2006-01-26

Similar Documents

Publication Publication Date Title
AU729216C (en) Device and method for cancelling code interference in a CDMA communication system
US7468943B2 (en) Transmission/Reception apparatus and method in a mobile communication system
US8369385B2 (en) Cancellation of pilot and traffic signals
JP5139508B2 (ja) スペクトル拡散通信システムおよび方法
US6747969B1 (en) Transmission gap interference measurement
US6324171B1 (en) Multicarrier CDMA base station system and multi-code wave forming method therof
AU710354B2 (en) Method and apparatus for spread-spectrum channel estimation
US7133433B2 (en) Method and apparatus for enhancing data rates in spread spectrum communication systems
KR100720332B1 (ko) 코드 분할 다중 접속 방식을 이용한 시분할 쌍방향 통신시스템의 셀 검색 절차
JP3362009B2 (ja) スペクトル拡散通信装置
US6707788B1 (en) Channel spreading device and method in CDMA communication system
JP3564394B2 (ja) Cdma通信システムのチャネル拡散装置及び方法
JP4180343B2 (ja) スペクトル拡散通信システムおよび方法
US7586980B2 (en) Apparatus for coherent combining type demodulation in communication system and method thereof
KR100743888B1 (ko) 보호구간 시퀀스를 추가한 준직교 확산시퀀스를 사용하는코드분할 다중접근 통신 장치 및 시스템
KR100324042B1 (ko) 양자화 에러를 최소화하는 피.엔.역확산기를 구비한 코드분할다원접속 시스템 수신기의 기저대역 복조장치
KR200315503Y1 (ko) Cdma신호 수신장치
KR20020039749A (ko) 코드 결합을 이용한 이동통신 시스템의 송수신장치
JP2003188768A (ja) Cdma方式を用いた受信装置および受信方法
HK1061612B (en) Cancellation of pilot and unwanted traffic signals in a cdma system
HK1063111B (en) Cancellation of pilot and unwanted traffic signals in a cdma system

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees