IL161861A0 - Communications in an asynchronous wireless network - Google Patents

Communications in an asynchronous wireless network

Info

Publication number
IL161861A0
IL161861A0 IL16186102A IL16186102A IL161861A0 IL 161861 A0 IL161861 A0 IL 161861A0 IL 16186102 A IL16186102 A IL 16186102A IL 16186102 A IL16186102 A IL 16186102A IL 161861 A0 IL161861 A0 IL 161861A0
Authority
IL
Israel
Prior art keywords
communications
wireless network
asynchronous wireless
asynchronous
network
Prior art date
Application number
IL16186102A
Other languages
English (en)
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
Publication of IL161861A0 publication Critical patent/IL161861A0/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • H04W56/0015Synchronization between nodes one node acting as a reference for the others
    • 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
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • 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
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7115Constructive combining of multi-path signals, i.e. RAKE receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2631Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for broadband transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Electric Clocks (AREA)
IL16186102A 2001-11-09 2002-11-08 Communications in an asynchronous wireless network IL161861A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US33747201P 2001-11-09 2001-11-09
US10/177,270 US6847630B2 (en) 2001-11-09 2002-06-21 Communications in an asynchronous cellular wireless network
PCT/US2002/035879 WO2003043229A1 (fr) 2001-11-09 2002-11-08 Communications dans un reseau sans fil asynchrone

Publications (1)

Publication Number Publication Date
IL161861A0 true IL161861A0 (en) 2005-11-20

Family

ID=26873104

Family Applications (1)

Application Number Title Priority Date Filing Date
IL16186102A IL161861A0 (en) 2001-11-09 2002-11-08 Communications in an asynchronous wireless network

Country Status (14)

Country Link
US (3) US6847630B2 (fr)
EP (3) EP2312768B1 (fr)
JP (1) JP4624671B2 (fr)
KR (2) KR100974977B1 (fr)
CN (2) CN101330322B (fr)
AR (1) AR037298A1 (fr)
BR (1) BR0213985A (fr)
CA (1) CA2466352A1 (fr)
IL (1) IL161861A0 (fr)
MX (1) MXPA04004338A (fr)
NO (1) NO20042347L (fr)
RU (1) RU2004117529A (fr)
TW (1) TWI277306B (fr)
WO (1) WO2003043229A1 (fr)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6847630B2 (en) * 2001-11-09 2005-01-25 Qualcomm, Incorporated Communications in an asynchronous cellular wireless network
CN1192531C (zh) * 2001-12-21 2005-03-09 华为技术有限公司 一种宽带码分多址系统同步的实现方法
US20030128787A1 (en) * 2002-01-10 2003-07-10 Daisuke Terasawa Method and apparatus for mitigating interference between base stations in a wideband CDMA system
US8094591B1 (en) * 2002-03-19 2012-01-10 Good Technology, Inc. Data carrier detector for a packet-switched communication network
CN1643968B (zh) * 2002-03-27 2010-09-01 艾利森电话股份有限公司 用于建立上行链路发送帧时序的方法和装置
US7313127B2 (en) * 2002-04-19 2007-12-25 General Electric Company Method and apparatus for synchronizing a radio telemetry system by way of transmitted-reference, delay-hopped ultra-wideband pilot signal
KR100827140B1 (ko) * 2002-05-03 2008-05-02 삼성전자주식회사 이동 통신 단말기에서 송/수신 기준 타이밍 생성 장치 및방법
US7167507B2 (en) * 2002-07-01 2007-01-23 Lucent Technologies Inc. Equalizer and method for performing equalization in a wireless communications system
US20040081117A1 (en) * 2002-10-29 2004-04-29 Malek Charles John Method for a synchronized hand off from a cellular network to a wireless network and apparatus thereof
US7804814B2 (en) * 2003-06-13 2010-09-28 Siemens Aktiengesellschaft Power control for a mobile radio communication system
US7450549B2 (en) * 2003-08-05 2008-11-11 Via Telecom Co., Ltd. Pilot signal enhancements for a wireless communication system
FR2866507B1 (fr) * 2004-02-16 2006-05-05 Wavecom Signal de radiotelephonie cellulaire permettant une synchronisation au niveau sous-trame d'un canal supplementaire a l'aide d'un canal principal, procede, mobile et station de base correspondants.
EP1566901A1 (fr) * 2004-02-18 2005-08-24 Siemens Aktiengesellschaft Procédé de synchronisation pour un système de radiocommunications
FR2868656B1 (fr) * 2004-04-06 2006-06-02 Wavecom Sa Signal de radiotelephonie cellulaire permettant une synchronisation au niveau d'une entite d'un canal supplementaire par numerotation des symboles, procede, terminal et station de base correspondants
US7733831B2 (en) * 2004-08-23 2010-06-08 Alcatel-Lucent Usa Inc. Detecting a wireless network air interface
WO2006080904A1 (fr) 2005-01-14 2006-08-03 Thomson Licensing Procede et systeme pour la resolution de sous-elements pour la recherche de cellules secondaires
BRPI0519320A2 (pt) * 2005-01-14 2009-01-13 Thomson Licensing hardware pesquisador para realizar uma determinaÇço de càdigo de misturaÇço
US7272126B2 (en) * 2005-04-07 2007-09-18 Pctel, Inc. Method and apparatus for beacon discovery in a spread spectrum cellular radio communication system
US7965687B2 (en) * 2005-12-15 2011-06-21 Sasken Communications Technologies Method and system for multiple-input-multiple-output (MIMO) communication in a wireless network
KR100735497B1 (ko) * 2006-04-10 2007-07-04 삼성전기주식회사 타이밍 동기가 향상된 패킷기반 무선통신 시스템 및 그방법
US8031745B2 (en) * 2006-04-20 2011-10-04 Texas Instruments Incorporated Downlink synchronization channel and methods for cellular systems
CN103874188B (zh) * 2006-04-20 2018-03-09 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
EP2044720B1 (fr) * 2006-07-25 2015-10-21 Electronics and Telecommunications Research Institute Procédé de recherche de cellule, procédé d'émission de trame à liaison aval, appareil associé et structure de trame à liaison aval
CN101390358B (zh) * 2006-08-28 2016-01-20 韩国电子通信研究院 在蜂窝系统中生成下行链路信号的方法、设备以及小区搜索方法和设备
GB2458418B (en) 2006-12-19 2011-08-03 Lg Electronics Inc Sequence generating method for efficient detection and method for transmitting and receiving signals using the same
CN101658009A (zh) * 2007-04-05 2010-02-24 日本电气株式会社 时间基准识别方法
US8050225B2 (en) * 2007-05-21 2011-11-01 Qualcomm Incorporated Assignment of primary and secondary synchronization code sequences to cells in a wireless communication system
US8971305B2 (en) 2007-06-05 2015-03-03 Qualcomm Incorporated Pseudo-random sequence mapping in wireless communications
KR100938756B1 (ko) 2007-07-06 2010-01-26 엘지전자 주식회사 무선통신 시스템에서 셀 탐색 과정을 수행하는 방법
CN101111049B (zh) * 2007-08-14 2010-07-28 华为技术有限公司 实现一个小区覆盖多区域的系统、方法和网络设备
US7912083B2 (en) * 2007-10-01 2011-03-22 Freescale Semiconductor, Inc. Techniques for reducing a cell identification falsing rate in a wireless communication system
US8472374B2 (en) * 2007-11-07 2013-06-25 Telefonaktiebolaget L M Ericsson (Publ) Distinguishing between synchronized and asynchronous mobile communications networks
US9204349B2 (en) 2009-02-10 2015-12-01 Qualcomm Incorporated Method and apparatus for facilitating a hand-in of user equipment to femto cells
US9204410B2 (en) * 2009-10-08 2015-12-01 Qualcomm Incorporated Method and apparatus for repeating uplink synchronization in time division synchronous code division multiple access (TD-SCDMA) networks
US9401784B2 (en) 2009-10-21 2016-07-26 Qualcomm Incorporated Time and frequency acquisition and tracking for OFDMA wireless systems
US9392562B2 (en) 2009-11-17 2016-07-12 Qualcomm Incorporated Idle access terminal-assisted time and/or frequency tracking
US9642105B2 (en) 2009-11-17 2017-05-02 Qualcomm Incorporated Access terminal-assisted time and/or frequency tracking
US10111111B2 (en) 2009-11-19 2018-10-23 Qualcomm Incorporated Per-cell timing and/or frequency acquisition and their use on channel estimation in wireless networks
US9271248B2 (en) 2010-03-02 2016-02-23 Qualcomm Incorporated System and method for timing and frequency synchronization by a Femto access point
US9178640B2 (en) 2010-08-20 2015-11-03 Qualcomm Incorporated Determination of network synchronization
US9756553B2 (en) 2010-09-16 2017-09-05 Qualcomm Incorporated System and method for assisted network acquisition and search updates
US8391334B1 (en) * 2010-09-27 2013-03-05 L-3 Communications Corp Communications reliability in a hub-spoke communications system
US9155057B2 (en) 2012-05-01 2015-10-06 Qualcomm Incorporated Femtocell synchronization enhancements using access probes from cooperating mobiles
US9237530B2 (en) 2012-11-09 2016-01-12 Qualcomm Incorporated Network listen with self interference cancellation
US9642106B2 (en) * 2013-03-21 2017-05-02 Spidercloud Wireless, Inc. Dynamic primary scrambling code disambiguation
WO2015131350A1 (fr) * 2014-03-05 2015-09-11 华为技术有限公司 Procédé et dispositif de synchronisation d'horloge, et système de communication
WO2018113901A1 (fr) * 2016-12-19 2018-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Construction de signal de référence basée sur une séquence de golay
AU2019202752B2 (en) * 2018-04-18 2023-04-27 Stroh, Parker Wilde MR Dynamic connection node based computing
CN111585679B (zh) * 2019-02-15 2021-08-03 大唐移动通信设备有限公司 一种同步网络中时间自同步的方法及设备

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE457184B (sv) 1987-04-03 1988-12-05 Ericsson Telefon Ab L M Foerfarande och utrustning foer synkronisering och oeverfoering av information i ett radiokommunikationsnaet
US5267261A (en) * 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
FR2695776B1 (fr) * 1992-09-15 1994-10-14 Alcatel Radiotelephone Procédé de transmission d'une information d'avance temporelle à un mobile évoluant dans des cellules d'un réseau GSM à BTS asynchrones.
US6430216B1 (en) * 1997-08-22 2002-08-06 Data Fusion Corporation Rake receiver for spread spectrum signal demodulation
JP2993463B2 (ja) * 1997-05-08 1999-12-20 日本電気株式会社 同期回路制御装置
KR100289843B1 (ko) * 1998-02-05 2001-05-15 이계철 비동기식 셀룰러 코드분할다중접속시스템의 기지국 획득방법
US6526039B1 (en) * 1998-02-12 2003-02-25 Telefonaktiebolaget Lm Ericsson Method and system for facilitating timing of base stations in an asynchronous CDMA mobile communications system
US6266529B1 (en) * 1998-05-13 2001-07-24 Nortel Networks Limited Method for CDMA handoff in the vicinity of highly sectorized cells
US6504830B1 (en) * 1998-06-15 2003-01-07 Telefonaktiebolaget Lm Ericsson Publ Method, apparatus, and system for fast base synchronization and sector identification
US6298073B1 (en) * 1998-06-26 2001-10-02 Lefever Ronald Stanton Method using elastic buffering for equalizing transmission delays in a non-earth-synchronous multiple satellite data transmission system
GB9819482D0 (en) 1998-09-07 1998-10-28 Nokia Telecommunications Oy Communication system
EP1155589A1 (fr) * 1999-02-26 2001-11-21 QUALCOMM Incorporated Procede et systeme de transfert entre une station de base amcr asynchrone et une station de base amcr synchrone
US7218630B1 (en) * 1999-04-30 2007-05-15 Lucent Technologies Inc. Data session setup system for wireless network
KR100398784B1 (ko) * 1999-06-15 2003-09-19 가부시키가이샤 엔.티.티.도코모 이동 통신 시스템에서의 셀 탐색을 위한 정보 관리 방법,이동국의 셀 탐색 방법, 이동 통신 시스템, 이동국,기지국 및 제어국
EP1273111B9 (fr) * 2000-04-07 2007-06-27 Interdigital Technology Corporation Synchronisation de station de base pour systemes de communication sans fil
US6681099B1 (en) * 2000-05-15 2004-01-20 Nokia Networks Oy Method to calculate true round trip propagation delay and user equipment location in WCDMA/UTRAN
US6813257B1 (en) * 2000-06-26 2004-11-02 Motorola, Inc. Apparatus and methods for controlling short code timing offsets in a CDMA system
WO2002025839A1 (fr) * 2000-09-15 2002-03-28 Koninklijke Philips Electronics N.V. Station secondaire et procede d'operation d'une telle station
US6697629B1 (en) 2000-10-11 2004-02-24 Qualcomm, Incorporated Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system
KR100372884B1 (ko) * 2000-12-19 2003-02-19 한국전자통신연구원 다중전송속도를 갖는 코드분할다중접속시스템의 감산형간섭제거장치 및 방법
US6657988B2 (en) * 2001-01-12 2003-12-02 Nokia Mobile Phones Ltd. Method and apparatus for timing adjustment for uplink synchronous transmission in wide code division multiple access
US7209463B2 (en) * 2001-06-30 2007-04-24 Samsung Electronics Co., Ltd. Transmission time adjusting apparatus and method between RNC and UE in a CDMA communication system
US6847630B2 (en) 2001-11-09 2005-01-25 Qualcomm, Incorporated Communications in an asynchronous cellular wireless network
CN1643968B (zh) * 2002-03-27 2010-09-01 艾利森电话股份有限公司 用于建立上行链路发送帧时序的方法和装置
KR100984656B1 (ko) * 2002-04-11 2010-10-01 퀄컴 인코포레이티드 무선 인터페이스 동기
US6822969B2 (en) * 2003-04-03 2004-11-23 Motorola, Inc. Method and apparatus for scheduling asynchronous transmissions

Also Published As

Publication number Publication date
KR20050056931A (ko) 2005-06-16
KR20100044913A (ko) 2010-04-30
EP2485545A3 (fr) 2013-04-03
CN1613208A (zh) 2005-05-04
US20050053049A1 (en) 2005-03-10
EP1451952B1 (fr) 2014-04-16
KR101096892B1 (ko) 2011-12-22
JP2005510123A (ja) 2005-04-14
RU2004117529A (ru) 2005-03-27
JP4624671B2 (ja) 2011-02-02
US20100265920A1 (en) 2010-10-21
AR037298A1 (es) 2004-11-03
US7352737B2 (en) 2008-04-01
US20030091022A1 (en) 2003-05-15
KR100974977B1 (ko) 2010-08-09
NO20042347L (no) 2004-08-02
CN100413228C (zh) 2008-08-20
CN101330322A (zh) 2008-12-24
EP2312768A2 (fr) 2011-04-20
EP2485545A2 (fr) 2012-08-08
EP2312768A3 (fr) 2013-04-03
TWI277306B (en) 2007-03-21
WO2003043229A1 (fr) 2003-05-22
EP1451952A1 (fr) 2004-09-01
CN101330322B (zh) 2014-04-30
BR0213985A (pt) 2004-12-14
US6847630B2 (en) 2005-01-25
CA2466352A1 (fr) 2003-05-22
EP2485545B1 (fr) 2019-06-26
MXPA04004338A (es) 2004-08-12
TW200300311A (en) 2003-05-16
EP2312768B1 (fr) 2017-05-17
US8711805B2 (en) 2014-04-29

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