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 (en) 2001-11-09 2002-11-08 Communications in an asynchronous wireless network

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 (xx)
EP (3) EP2485545B1 (xx)
JP (1) JP4624671B2 (xx)
KR (2) KR101096892B1 (xx)
CN (2) CN100413228C (xx)
AR (1) AR037298A1 (xx)
BR (1) BR0213985A (xx)
CA (1) CA2466352A1 (xx)
IL (1) IL161861A0 (xx)
MX (1) MXPA04004338A (xx)
NO (1) NO20042347L (xx)
RU (1) RU2004117529A (xx)
TW (1) TWI277306B (xx)
WO (1) WO2003043229A1 (xx)

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
JP4763599B2 (ja) * 2003-06-13 2011-08-31 シーメンス アクチエンゲゼルシヤフト 移動無線通信システム用の電力制御装置
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 (de) * 2004-02-18 2005-08-24 Siemens Aktiengesellschaft Verfahren zur Synchronisation eines in Funkzellen aufgeteilten Funkkommunikationssystems
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
US8442094B2 (en) * 2005-01-14 2013-05-14 Thomson Licensing Cell search using rake searcher to perform scrambling code determination
US8059776B2 (en) 2005-01-14 2011-11-15 Thomson Licensing Method and system for sub-chip resolution for secondary cell search
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
KR101055895B1 (ko) * 2006-04-20 2011-08-09 텍사스 인스트루먼츠 인코포레이티드 기지국 송신기, 사용자 장비 수신기, 기지국 송신기 동작 방법, 사용자 장비 수신기 동작 방법 및 셀룰러 통신 네트워크 동작 방법
CN101405986B (zh) * 2006-07-25 2012-05-23 韩国电子通信研究院 小区搜索方法、前向链路帧传送方法、利用其的设备和前向链路帧结构
EP2057811B1 (en) * 2006-08-28 2020-04-22 SK Telecom Co., Ltd. Apparatus for generating down link signal, and method and apparatus for cell search in cellular system
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
JP4936027B2 (ja) * 2007-04-05 2012-05-23 日本電気株式会社 時間リファレンス識別方法
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
CN106105103B (zh) * 2014-03-05 2020-09-18 华为技术有限公司 时钟同步方法、设备及通信系统
CN110089062B (zh) * 2016-12-19 2022-06-07 瑞典爱立信有限公司 基于Golay序列的参考信号构造
US11183991B2 (en) * 2018-04-18 2021-11-23 Parker Wilde Stroh 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
KR20010102418A (ko) * 1999-02-26 2001-11-15 밀러 럿셀 비 비동기 cdma 기지국 및 동기 cdma 기지국 간의핸드오프 방법 및 시스템
US7218630B1 (en) * 1999-04-30 2007-05-15 Lucent Technologies Inc. Data session setup system for wireless network
CN100344206C (zh) * 1999-06-15 2007-10-17 株式会社Ntt都科摩 信息管理方法,小区搜索方法,移动通信系统,移动站,基站和控制站
DK1273111T3 (da) * 2000-04-07 2006-07-10 Interdigital Tech Corp Basisstationssynkronisering til trådlöse kommunikationssystemer
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
AU2002210482A1 (en) * 2000-09-15 2002-04-02 Koninklijke Philips Electronics N.V. Secondary station and method of operating the 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
IL164481A0 (en) * 2002-04-11 2005-12-18 Qualcomm Inc Radio interface synchronization
US6822969B2 (en) * 2003-04-03 2004-11-23 Motorola, Inc. Method and apparatus for scheduling asynchronous transmissions

Also Published As

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

Similar Documents

Publication Publication Date Title
IL161861A0 (en) Communications in an asynchronous wireless network
GB2382270B (en) Improved location systems in cellular communications networks
GB2363297B (en) Secure network communications
GB0123057D0 (en) Virtual wireless network services
EP1340323A4 (en) WIRELESS COMMUNICATION NETWORK
GB0110397D0 (en) Communications networks
GB2380633B (en) Communication networks
IL150160A0 (en) Multi-user chat service in a cellular network
GB0120837D0 (en) Channel adaptaton in a communication network
HK1042610A1 (en) Mobile communications network
GB0112205D0 (en) Charging in communication networks
GB0112202D0 (en) Charging in communication networks
GB0001040D0 (en) Communications network
GB0030183D0 (en) Mobile communications unit
GB0022561D0 (en) Communications network
GB0016289D0 (en) Communications network
GB2370732B (en) Security in communications networks
GB0003509D0 (en) Communications network based recruitment
GB2372909B (en) Wireless network telephone set system
GB0131040D0 (en) Communications terminal
GB0110396D0 (en) Communications networks
GB0011744D0 (en) Communications terminal
TW587791U (en) Improved wireless network card structure
GB0030367D0 (en) Mobile communications
GB9905372D0 (en) Mobile communications network