DE60023497D1 - Verfahren und einrichtung zur interferenzreduzierung zwischen basisstationen in einem breitband cdma-system - Google Patents

Verfahren und einrichtung zur interferenzreduzierung zwischen basisstationen in einem breitband cdma-system

Info

Publication number
DE60023497D1
DE60023497D1 DE60023497T DE60023497T DE60023497D1 DE 60023497 D1 DE60023497 D1 DE 60023497D1 DE 60023497 T DE60023497 T DE 60023497T DE 60023497 T DE60023497 T DE 60023497T DE 60023497 D1 DE60023497 D1 DE 60023497D1
Authority
DE
Germany
Prior art keywords
primary synchronization
phase
rotation sequence
base stations
phase rotation
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 - Lifetime
Application number
DE60023497T
Other languages
English (en)
Other versions
DE60023497T2 (de
Inventor
Daisuke Terasawa
Avneesh Agrawal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
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 DE60023497D1 publication Critical patent/DE60023497D1/de
Publication of DE60023497T2 publication Critical patent/DE60023497T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • H04W56/0085—Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
DE60023497T 1999-06-08 2000-06-07 Verfahren und einrichtung zur interferenzreduzierung zwischen basisstationen in einem breitband cdma-system Expired - Lifetime DE60023497T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/328,119 US6385264B1 (en) 1999-06-08 1999-06-08 Method and apparatus for mitigating interference between base stations in a wideband CDMA system
US328119 1999-06-08
PCT/US2000/015619 WO2000076080A1 (en) 1999-06-08 2000-06-07 Method and apparatus for mitigating interference between base stations in a wideband cdma system

Publications (2)

Publication Number Publication Date
DE60023497D1 true DE60023497D1 (de) 2005-12-01
DE60023497T2 DE60023497T2 (de) 2006-08-03

Family

ID=23279608

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60023497T Expired - Lifetime DE60023497T2 (de) 1999-06-08 2000-06-07 Verfahren und einrichtung zur interferenzreduzierung zwischen basisstationen in einem breitband cdma-system

Country Status (11)

Country Link
US (1) US6385264B1 (de)
EP (1) EP1190497B1 (de)
JP (1) JP2003501936A (de)
KR (1) KR100748402B1 (de)
CN (1) CN1152480C (de)
AT (1) ATE308164T1 (de)
AU (1) AU5468200A (de)
BR (1) BR0011414A (de)
DE (1) DE60023497T2 (de)
HK (1) HK1044243A1 (de)
WO (1) WO2000076080A1 (de)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6665277B1 (en) * 1998-10-16 2003-12-16 Texas Instruments Incorporated Comma free codes for fast cell search using tertiary synchronization channel
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
US6717930B1 (en) * 2000-05-22 2004-04-06 Interdigital Technology Corporation Cell search procedure for time division duplex communication systems using code division multiple access
US6385264B1 (en) * 1999-06-08 2002-05-07 Qualcomm Incorporated Method and apparatus for mitigating interference between base stations in a wideband CDMA system
US7103085B1 (en) * 1999-06-18 2006-09-05 Texas Instruments Incorporated Wireless communications system with secondary synchronization code based on values in primary synchronization code
KR100434262B1 (ko) * 1999-08-17 2004-06-04 엘지전자 주식회사 순방향 다중 스크램블링 코드 발생 방법
KR100429545B1 (ko) * 1999-08-17 2004-04-28 삼성전자주식회사 이동통신 시스템의 스크램블링 부호의 식별자 통신방법
US6834046B1 (en) * 1999-10-05 2004-12-21 Texas Instruments Incorporated Acquisition of an unevenly spaced synchronization channel in a wireless communication system
US6631125B1 (en) * 1999-10-20 2003-10-07 Nokia Corporation Channel set-up in wideband, code division multiple access systems
US6665288B1 (en) * 1999-11-08 2003-12-16 Ericsson Inc. Method and apparatus for reducing synchronization code interference in CDMA communications systems
DE10001854A1 (de) * 2000-01-18 2001-08-02 Infineon Technologies Ag Verfahren und Vorrichtung zur Ermittlung der Trägerfrequenz von Basisstationen im mobilen Empfänger eines mit W-CDMA arbeitenden zellularen Mobilfunksystems
ES2269908T3 (es) * 2000-05-10 2007-04-01 Mitsubishi Electric Information Technology Centre Europe B.V. Metodo para adjudicar codigos de sincronizacion secundarios a una estacion base de un sistema de telecomunicaciones moviles.
US8576754B2 (en) 2000-05-22 2013-11-05 Interdigital Technology Corporation TDD base station for code group synchronization
US8363744B2 (en) 2001-06-10 2013-01-29 Aloft Media, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks
JPWO2002032029A1 (ja) * 2000-10-06 2004-02-26 株式会社鷹山 受信装置
JP4368514B2 (ja) * 2000-10-30 2009-11-18 三菱電機株式会社 セルサーチ制御装置およびセルサーチ制御方法
US6728203B2 (en) * 2001-05-18 2004-04-27 Telefonaktiebolaget L.M. Ericsson Systems and methods for selecting a cell in a communications network
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
US6754190B2 (en) 2001-10-17 2004-06-22 Motorola, Inc. Channel selection method used in a communication system
JP4125676B2 (ja) * 2001-10-17 2008-07-30 モトローラ・インコーポレイテッド マルチユーザ・システムでデータ通信を行うための方法とデバイス
US7260506B2 (en) * 2001-11-19 2007-08-21 Tensorcomm, Inc. Orthogonalization and directional filtering
US20050101277A1 (en) * 2001-11-19 2005-05-12 Narayan Anand P. Gain control for interference cancellation
US7693123B2 (en) * 2001-11-29 2010-04-06 Interdigital Technology Corporation System and method using primary and secondary synchronization codes during cell search
US7065064B2 (en) * 2001-12-20 2006-06-20 Interdigital Technology Corporation Cell search using peak quality factors
US6907028B2 (en) * 2002-02-14 2005-06-14 Nokia Corporation Clock-based time slicing
US7292552B2 (en) 2002-03-14 2007-11-06 Qualcomm Incorporated Method and apparatus for reducing interference in a wireless communication system
US7095709B2 (en) * 2002-06-24 2006-08-22 Qualcomm, Incorporated Diversity transmission modes for MIMO OFDM communication systems
US20040208238A1 (en) * 2002-06-25 2004-10-21 Thomas John K. Systems and methods for location estimation in spread spectrum communication systems
TWI324023B (en) * 2002-07-31 2010-04-21 Interdigital Tech Corp Start-up automatic frequency control (afc) method and apparatus
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7058034B2 (en) * 2002-09-09 2006-06-06 Nokia Corporation Phase shifted time slice transmission to improve handover
US7577186B2 (en) * 2002-09-20 2009-08-18 Tensorcomm, Inc Interference matrix construction
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
US20050180364A1 (en) * 2002-09-20 2005-08-18 Vijay Nagarajan Construction of projection operators for interference cancellation
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US7463609B2 (en) * 2005-07-29 2008-12-09 Tensorcomm, Inc Interference cancellation within wireless transceivers
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
US20050123080A1 (en) * 2002-11-15 2005-06-09 Narayan Anand P. Systems and methods for serial cancellation
US8179946B2 (en) * 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US20040127207A1 (en) * 2002-09-25 2004-07-01 Interdigital Technology Corporation Programmable radio interface
WO2004036811A2 (en) * 2002-10-15 2004-04-29 Tensorcomm Inc. Method and apparatus for interference suppression with efficient matrix inversion in a ds-cdma system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US7986742B2 (en) * 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
WO2004042948A1 (en) * 2002-10-31 2004-05-21 Tensorcomm, Incorporated Systems and methods for reducing interference in cdma systems
WO2004073159A2 (en) * 2002-11-15 2004-08-26 Tensorcomm, Incorporated Systems and methods for parallel signal cancellation
UA90244C2 (ru) * 2003-01-07 2010-04-26 Квелкомм Инкорпорейтед Схема передачи пилот-сигналов для систем радиосвязи с передачей на несколько несущих
US7280467B2 (en) * 2003-01-07 2007-10-09 Qualcomm Incorporated Pilot transmission schemes for wireless multi-carrier communication systems
US7218641B2 (en) * 2003-03-11 2007-05-15 Motorola, Inc. Method and apparatus for adaptive processing gain for multiple source devices in a communications system
US7023817B2 (en) * 2003-03-11 2006-04-04 Motorola, Inc. Method and apparatus for source device synchronization in a communication system
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US20050169354A1 (en) * 2004-01-23 2005-08-04 Olson Eric S. Systems and methods for searching interference canceled data
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
US7660583B2 (en) * 2004-03-19 2010-02-09 Nokia Corporation Advanced handover in phased-shifted and time-sliced networks
CN1691555B (zh) * 2004-04-30 2010-04-14 诺基亚西门子通信系统技术（北京）有限公司 Td-scdma系统中减少上行同步信道干扰的方法
US20060125689A1 (en) * 2004-12-10 2006-06-15 Narayan Anand P Interference cancellation in a receive diversity system
US20060229051A1 (en) * 2005-04-07 2006-10-12 Narayan Anand P Interference selection and cancellation for CDMA communications
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
KR100872043B1 (ko) * 2005-12-29 2008-12-05 삼성전자주식회사 광대역 무선접속 통신시스템에서 파일럿 패턴 결정 장치 및방법
US7706249B2 (en) * 2006-02-08 2010-04-27 Motorola, Inc. Method and apparatus for a synchronization channel in an OFDMA system
US7983143B2 (en) 2006-02-08 2011-07-19 Motorola Mobility, Inc. Method and apparatus for initial acquisition and cell search for an OFDMA system
US7911935B2 (en) * 2006-02-08 2011-03-22 Motorola Mobility, Inc. Method and apparatus for interleaving sequence elements of an OFDMA synchronization channel
JP2007251862A (ja) * 2006-03-20 2007-09-27 Hitachi Kokusai Electric Inc デジタル伝送の方向調整方法
CN101490978A (zh) * 2006-04-20 2009-07-22 德克萨斯仪器股份有限公司 下行链路同步化信道和蜂窝系统的方法
US8031745B2 (en) * 2006-04-20 2011-10-04 Texas Instruments Incorporated Downlink synchronization channel and methods for cellular systems
CN106304318B (zh) * 2006-04-20 2020-02-11 苹果公司 下行链路同步化信道和蜂窝系统的方法
US8223625B2 (en) * 2006-08-23 2012-07-17 Qualcomm, Incorporated Acquisition in frequency division multiple access systems
CA2665218C (en) * 2006-10-03 2013-07-16 Qualcomm Incorporated Method and apparatus for processing primary and secondary synchronization signals for wireless communication
EP2360957A1 (de) * 2010-02-11 2011-08-24 Alcatel Lucent Verfahren und System zur Reduzierung der Interferenzen in einem zellularen Funkkommunikationssystem mit dem Wiederverwendungsfaktor 1
US9578469B2 (en) 2014-10-02 2017-02-21 Motorola Solutions, Inc. Method and system for direct mode communication within a talkgroup

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5930366A (en) * 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system
US6026117A (en) * 1997-10-23 2000-02-15 Interdigital Technology Corporation Method and apparatus for generating complex four-phase sequences for a CDMA communication system
US6385264B1 (en) * 1999-06-08 2002-05-07 Qualcomm Incorporated Method and apparatus for mitigating interference between base stations in a wideband CDMA system
JP4389346B2 (ja) * 2000-04-27 2009-12-24 ソニー株式会社 同期検出装置及び方法、並びに無線信号受信装置及び方法

Also Published As

Publication number Publication date
BR0011414A (pt) 2002-04-23
KR20020009630A (ko) 2002-02-01
CN1152480C (zh) 2004-06-02
US6385264B1 (en) 2002-05-07
EP1190497B1 (de) 2005-10-26
JP2003501936A (ja) 2003-01-14
AU5468200A (en) 2000-12-28
ATE308164T1 (de) 2005-11-15
DE60023497T2 (de) 2006-08-03
CN1354917A (zh) 2002-06-19
WO2000076080A1 (en) 2000-12-14
KR100748402B1 (ko) 2007-08-10
EP1190497A1 (de) 2002-03-27
HK1044243A1 (en) 2002-10-11

Similar Documents

Publication Publication Date Title
DE60023497D1 (de) Verfahren und einrichtung zur interferenzreduzierung zwischen basisstationen in einem breitband cdma-system
WO2003067769A3 (en) Method and apparatus for synchronizing base stations
KR200304594Y1 (ko) 셀 검색 기간 중에 1차 동기 코드와 2차 동기 코드를이용하는 시분할 전이중(ｔｄｄ) 노드 비(ｂ)
AR025824A1 (es) Un metodo para correlacionar en un primer transceptor una senal que se recibe y que transmite un segundo transceptor, un generador de secuencias
ES2160828T3 (es) Adquisicion de codigo en un sistema de comunicaciones de cdma que usa multiples canales walsh.
BR9508348A (pt) Sistema para cancelar interferência de múltiplo acesso por divisão de código com propagação de espectros e processo para reduzir a interferência em um receptor de múltiplo acesso por divisão de código
ATE362263T1 (de) Einrichtung und verfahren zur reduzierung von nachrichtenzusammenstössen zwischen mobilstationen, die gleichzeitig auf eine basisstation in einem cdma-zellularen kommunikationssystem zugreifen
EP0756395A3 (de) Spreizsequenzgenerator und CDMA-Übertragungssystem
BR0100361A (pt) Método e aparelho de comunicação de link ascendente entre uma estação móvel e uma estação base de um sistema de comunicação sem fio
MY117414A (en) Mobile station synchronization within a spread spectrum communications system
EP1324509A3 (de) Paketübertragungsregelungsverfahren
NZ519641A (en) Mobile station assisted timing synchronization in a CDMA communication system
FI982280A0 (fi) Menetelmä ja järjestelmä matkaviestinliikenteessä
ATE413782T1 (de) Verfahren und system zur bestimmung des aufenthaltsorts eines funkteilnehmers in einem cdma-kommunikationssystem
DE69629266D1 (de) Verfahren, system und mobilstation zur cdma-mobilkommunikation
EP1170884A3 (de) Verfahren zur Kode Zuteilung in Aufwärtsverbindungen von synchronen drahtlosen Telekommunikationsanordnungen
NO20003257D0 (no) FremgangsmÕte for frekvenshopping, samt basestasjon
HK1024352A1 (en) Synchronization method for spread spectrum radiocommunication and mobile station using same.
DE60108534D1 (de) Synchronisation von mobilen geräten in einem zeitmultiplex duplex (tdd) cdma system
NO20005238D0 (no) Kodetildeling i forbindelse med myk overlevering i CDMA- system
CA2315311A1 (en) Device and method for generating short pn code in mobile communication system
FI20012199A (fi) Menetelmä signaalin tahdistumisen suorittamiseksi langattomassa päätelaitteessa ja langaton päätelaite
ATE259559T1 (de) Verfahren und funk-kommunikationssystem zur synchronisation von teilnehmerstationen
SE0302655D0 (sv) Method and arrangement in a telecommunication system
ATE321427T1 (de) Kommunikationssytem und verfahren zur vergebührung von teilnehmergruppen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition