DE69939008D1 - Verfahren und system zur erleichterung von basisstationzeitsynchronisation in einem asynchronen cdma nachrichtenübertragungssystem - Google Patents

Verfahren und system zur erleichterung von basisstationzeitsynchronisation in einem asynchronen cdma nachrichtenübertragungssystem

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Publication number
DE69939008D1
DE69939008D1 DE69939008T DE69939008T DE69939008D1 DE 69939008 D1 DE69939008 D1 DE 69939008D1 DE 69939008 T DE69939008 T DE 69939008T DE 69939008 T DE69939008 T DE 69939008T DE 69939008 D1 DE69939008 D1 DE 69939008D1
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DE
Germany
Prior art keywords
base station
message transmission
time synchronization
station time
transmission system
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
DE69939008T
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English (en)
Inventor
Erik Bengt Dahlman
Karim Jamal
Per Johan Nystroem
Mats Cedervall
Patrik Nils Lundqvist
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.)
Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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.)
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Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of DE69939008D1 publication Critical patent/DE69939008D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • H04B1/7083—Cell search, e.g. using a three-step approach
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
DE69939008T 1998-02-12 1999-02-09 Verfahren und system zur erleichterung von basisstationzeitsynchronisation in einem asynchronen cdma nachrichtenübertragungssystem Expired - Lifetime DE69939008D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7449498P 1998-02-12 1998-02-12
US09/243,095 US6526039B1 (en) 1998-02-12 1999-02-02 Method and system for facilitating timing of base stations in an asynchronous CDMA mobile communications system
PCT/SE1999/000169 WO1999041854A1 (en) 1998-02-12 1999-02-09 Method and system for facilitating timing of base stations in an asynchronous cdma mobile communications system

Publications (1)

Publication Number Publication Date
DE69939008D1 true DE69939008D1 (de) 2008-08-14

Family

ID=26755727

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69939008T Expired - Lifetime DE69939008D1 (de) 1998-02-12 1999-02-09 Verfahren und system zur erleichterung von basisstationzeitsynchronisation in einem asynchronen cdma nachrichtenübertragungssystem

Country Status (11)

Country Link
US (1) US6526039B1 (de)
EP (1) EP1055295B1 (de)
JP (1) JP4373002B2 (de)
KR (1) KR100602836B1 (de)
CN (1) CN1126298C (de)
AR (1) AR018283A1 (de)
AU (1) AU761795B2 (de)
BR (1) BR9907857A (de)
CA (1) CA2320996C (de)
DE (1) DE69939008D1 (de)
WO (1) WO1999041854A1 (de)

Families Citing this family (141)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6151332A (en) 1997-06-20 2000-11-21 Tantivy Communications, Inc. Protocol conversion and bandwidth reduction technique providing multiple nB+D ISDN basic rate interface links over a wireless code division multiple access communication system
US6542481B2 (en) * 1998-06-01 2003-04-01 Tantivy Communications, Inc. Dynamic bandwidth allocation for multiple access communication using session queues
US6081536A (en) * 1997-06-20 2000-06-27 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US20040160910A1 (en) * 1997-12-17 2004-08-19 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7496072B2 (en) * 1997-12-17 2009-02-24 Interdigital Technology Corporation System and method for controlling signal strength over a reverse link of a CDMA wireless communication system
US7079523B2 (en) * 2000-02-07 2006-07-18 Ipr Licensing, Inc. Maintenance link using active/standby request channels
US7394791B2 (en) * 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US6222832B1 (en) * 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US7936728B2 (en) * 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US6879571B1 (en) * 1998-05-13 2005-04-12 Hitachi, Ltd. Code division multiple access mobile communication system
US7773566B2 (en) * 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US8134980B2 (en) * 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US7221664B2 (en) * 1998-06-01 2007-05-22 Interdigital Technology Corporation Transmittal of heartbeat signal at a lower level than heartbeat request
GB9819482D0 (en) * 1998-09-07 1998-10-28 Nokia Telecommunications Oy Communication system
US6614776B1 (en) * 1999-04-28 2003-09-02 Tantivy Communications, Inc. Forward error correction scheme for high rate data exchange in a wireless system
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
GB9920248D0 (en) * 1999-08-26 1999-10-27 Motorola Ltd A method of measuring radio signals and apparatus therefor
JP2001086032A (ja) * 1999-09-10 2001-03-30 Pioneer Electronic Corp 通信装置及び通信方法
JP2001086035A (ja) * 1999-09-14 2001-03-30 Nec Corp Ｃｄｍａにおけるセルサーチ方法
US6675015B1 (en) 1999-09-15 2004-01-06 Nokia Corporation Apparatus, and associated method, for facilitating communication handovers in a bluetooth-public-access radio communication system
US6526034B1 (en) * 1999-09-21 2003-02-25 Tantivy Communications, Inc. Dual mode subscriber unit for short range, high rate and long range, lower rate data communications
JP2001169329A (ja) * 1999-10-19 2001-06-22 Hyundai Electronics Ind Co Ltd 非同期移動通信システム
US6704581B1 (en) * 1999-11-13 2004-03-09 Hyundai Electronics Industry Co. Mobile telecommunication system and method for performing handoff between asynchronous base station and synchronous base station
FI19992612A (fi) * 1999-12-03 2001-06-04 Nokia Mobile Phones Ltd Viestintäyhteyden kuuluvuustietojen välittämismenetelmä
US8463255B2 (en) * 1999-12-20 2013-06-11 Ipr Licensing, Inc. Method and apparatus for a spectrally compliant cellular communication system
US6438117B1 (en) * 2000-01-07 2002-08-20 Qualcomm Incorporated Base station synchronization for handover in a hybrid GSM/CDMA network
WO2001058044A2 (en) 2000-02-07 2001-08-09 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
EP1133078B1 (de) * 2000-03-10 2007-08-01 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren zur Synchronisation von Basisstationen und eine Mobilstation in einem zellularen Kommunikationssystem
TW506199B (en) * 2000-04-06 2002-10-11 Interdigital Tech Corp Synchronization of time advance and deviation
US6625467B2 (en) 2000-07-13 2003-09-23 Qualcomm, Incorporated Method and apparatus for performing idle mode reacquisition and handoff in an asynchronous communication system
GB0022634D0 (en) * 2000-09-15 2000-11-01 Koninkl Philips Electronics Nv Secondary station and method of operating the station
US7430197B1 (en) * 2000-09-29 2008-09-30 Arraycomm, Llc Radio communications system with a shared broadcast channel
US7110774B1 (en) * 2000-10-27 2006-09-19 Intel Corporation Dual mode uplink/downlink location measurement and multi-protocol location measurement
US7039418B2 (en) * 2000-11-16 2006-05-02 Qualcomm Incorporated Position determination in a wireless communication system with detection and compensation for repeaters
AU2002214309A1 (en) * 2000-11-16 2002-05-27 Sony Corporation Information processing apparatus and communication apparatus
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
GB0029739D0 (en) * 2000-12-06 2001-01-17 Univ Surrey Mobile positioning using integrated ad-hoc network
JP3510589B2 (ja) * 2000-12-15 2004-03-29 Ｎｅｃエレクトロニクス株式会社 セルサーチ方法およびセルサーチ装置
US7765422B2 (en) * 2001-01-19 2010-07-27 Alcatel-Lucent Usa Inc. Method of determining a time offset estimate between a central node and a secondary node
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US6954448B2 (en) * 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
KR100464375B1 (ko) * 2001-02-21 2005-01-13 삼성전자주식회사 역방향 동기 전송을 위한 부호분할다중접속 통신시스템의 기지국 송신 시간 조정 방법
GB2374252A (en) 2001-04-04 2002-10-09 Ubinetics Ltd Identification of neighbouring cell scrambling codes
KR100665077B1 (ko) 2001-06-13 2007-01-09 탄티비 커뮤니케이션즈 인코포레이티드 하트비트 요구보다 낮은 레벨로의 하트비트 신호의 전송
US6894995B2 (en) * 2001-06-22 2005-05-17 Interdigital Technology Corporation Apparatus and method for performing initial cell search in wireless communication systems
US20030007471A1 (en) * 2001-07-03 2003-01-09 Daisuke Terasawa Operation of wideband code division multiple access base stations
US6775242B2 (en) * 2001-07-09 2004-08-10 Qualcomm Incorporated Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system
EP1278074A1 (de) * 2001-07-17 2003-01-22 Cambridge Positioning Systems Limited Funkpositionssystem
US6744747B2 (en) * 2001-08-22 2004-06-01 Qualcomm, Incorporated Method & apparatus for W-CDMA handoff searching
KR100438546B1 (ko) * 2001-10-26 2004-07-03 엘지전자 주식회사 이동통신 단말기의 자동 시간설정 방법
KR100557509B1 (ko) * 2001-10-27 2006-03-03 삼성전자주식회사 유엠티에스 시스템에서의 셀 탐색 방법
US6847630B2 (en) * 2001-11-09 2005-01-25 Qualcomm, Incorporated Communications in an asynchronous cellular wireless network
FI113832B (fi) * 2001-11-13 2004-06-15 Nokia Corp Menetelmä signaalin tahdistumisen suorittamiseksi langattomassa päätelaitteessa ja langaton päätelaite
DE10156642A1 (de) * 2001-11-17 2003-06-12 Tenovis Gmbh & Co Kg Verfahren zur Auswahl einer geeigneten Basisstation in einem Mehrzellen-Funksystem sowie mobiles Telekommunikations-Endgerät
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
US20030125045A1 (en) * 2001-12-27 2003-07-03 Riley Wyatt Thomas Creating and using base station almanac information in a wireless communication system having a position location capability
CN1292261C (zh) * 2002-01-24 2006-12-27 华为技术有限公司 一种移动台定位测量的方法
US7813311B2 (en) * 2002-02-05 2010-10-12 Interdigital Technology Corporation Method and apparatus for synchronizing base stations
US7502614B2 (en) * 2002-02-18 2009-03-10 Sony Corporation Radio communication system, radio communication apparatus and radio communication method, and computer program
KR100856228B1 (ko) * 2002-02-20 2008-09-03 삼성전자주식회사 범용 이동 통신 시스템에서의 아이피디엘의 운용 및 중첩방지 방법
JP2003259413A (ja) * 2002-03-01 2003-09-12 Matsushita Electric Ind Co Ltd 基地局装置及び通信端末装置
KR100469416B1 (ko) * 2002-03-27 2005-02-02 엘지전자 주식회사 이동 단말기의 위치 추적 장치 및 방법
GB2387072B (en) * 2002-03-28 2004-09-22 Motorola Inc Mobile communication stations, methods and systems
WO2003084268A1 (en) * 2002-04-01 2003-10-09 Schema Ltd. Hybrid channel allocation in a cellular network
US7236779B2 (en) * 2002-04-01 2007-06-26 Schema Ltd. Classification of cellular network drive test results
US20030188029A1 (en) * 2002-04-01 2003-10-02 Schema Ltd. Determining cell service areas in a wireless network
US20030210713A1 (en) * 2002-05-13 2003-11-13 Hisham Abdel-Ghaffar Estimating a time offset between link points in a communication network operating in a frequency division duplex mode
US7295808B2 (en) * 2002-09-05 2007-11-13 Soliman Samir S Method of and system for calibrating a repeater
US20040203882A1 (en) * 2002-11-15 2004-10-14 Jaana Laiho Location services
KR100689566B1 (ko) * 2003-03-08 2007-03-02 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 초기 레인징을 이용한핸드오프 시스템 및 방법
CN100397914C (zh) * 2003-07-03 2008-06-25 华为技术有限公司 一种进行位置更新登记的实现方法
US7123928B2 (en) 2003-07-21 2006-10-17 Qualcomm Incorporated Method and apparatus for creating and using a base station almanac for position determination
US7369534B2 (en) * 2003-08-27 2008-05-06 Qualcomm Incorporated Reducing search time using known scrambling code offsets
WO2005025249A1 (en) * 2003-09-05 2005-03-17 Qualcomm Incorporated Method for minimizing the maximum system time uncertainty for a mobile station
KR100557080B1 (ko) * 2003-09-29 2006-03-03 삼성전자주식회사 이동통신단말기의 위치결정 장치 및 그 방법
KR100605937B1 (ko) * 2004-01-14 2006-08-01 삼성전자주식회사 듀얼모드 이동통신단말기에서의 호 처리 방법 및 그듀얼모드 이동통신단말기
US9137771B2 (en) 2004-04-02 2015-09-15 Qualcomm Incorporated Methods and apparatuses for beacon assisted position determination systems
KR100965694B1 (ko) * 2004-06-15 2010-06-24 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 소프트 핸드오버 지원을 위한 시스템 및 방법
US8099094B2 (en) * 2004-07-12 2012-01-17 Interdigital Technology Corporation Neighbor scanning in wireless local area networks
LT1779055T (lt) * 2004-07-15 2017-04-10 Cubic Corporation Taikymosi taško patobulinimas imitacinėse mokymo sistemose
CN100401838C (zh) * 2004-07-31 2008-07-09 华为技术有限公司 异步码分多址系统的切换同步方法
KR100576002B1 (ko) * 2004-12-17 2006-05-02 삼성전자주식회사 측위 정보 서비스 방법 및 그 서비스를 제공하는 인터넷프로토콜 네트워크 시스템과 그 서비스를 제공받는이동통신 단말기 및 방법
US7813383B2 (en) 2005-03-10 2010-10-12 Qualcomm Incorporated Method for transmission of time division multiplexed pilot symbols to aid channel estimation, time synchronization, and AGC bootstrapping in a multicast wireless system
JP4592477B2 (ja) * 2005-03-31 2010-12-01 株式会社エヌ・ティ・ティ・ドコモ 無線通信システム、基地局、移動局、及び無線通信方法
US7477913B2 (en) * 2005-04-04 2009-01-13 Research In Motion Limited Determining a target transmit power of a wireless transmission according to security requirements
WO2006118124A1 (ja) * 2005-04-28 2006-11-09 Matsushita Electric Industrial Co., Ltd. 無線通信装置および無線通信方法
TWI325733B (en) * 2005-05-10 2010-06-01 Qualcomm Inc Base station synchronization using multi-communication mode user equipment
US8311543B2 (en) * 2005-07-07 2012-11-13 Qualcomm Incorporated Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks
US8364148B2 (en) 2005-07-07 2013-01-29 Qualcomm Incorporated Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks
US8126477B2 (en) * 2005-07-07 2012-02-28 Qualcomm Incorporated Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks
CN100438695C (zh) * 2005-07-19 2008-11-26 华为技术有限公司 检测软交换激活集内各基站间传输时延差的方法及装置
JP2009514325A (ja) * 2005-10-26 2009-04-02 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 移動通信ネットワークにおける方法および装置
CN100433613C (zh) 2005-11-16 2008-11-12 华为技术有限公司 一种链路扰码配置一致性检测方法
JP4999425B2 (ja) * 2005-11-29 2012-08-15 パナソニック株式会社 通信装置および通信方法
US8437288B2 (en) 2006-03-07 2013-05-07 Qualcomm Incorporated Network selection by wireless terminals
US7782806B2 (en) 2006-03-09 2010-08-24 Qualcomm Incorporated Timing synchronization and channel estimation at a transition between local and wide area waveforms using a designated TDM pilot
US20070280332A1 (en) * 2006-06-05 2007-12-06 Srikathyayani Srikanteswara Systems and Techniques for Radio Frequency Environment Awareness and Adaptation
US7570962B2 (en) * 2006-07-12 2009-08-04 Intel Corporation Wireless access network base station and method for determining location information for a mobile station using uplink time-difference of arrival
WO2008016246A1 (en) * 2006-07-31 2008-02-07 Electronics And Telecommunications Research Institute Ue data transmitting method and apparatus using cell search signal in synchronized cellular system
US7974633B2 (en) * 2006-08-18 2011-07-05 Andrew, Llc System and method for single sensor geolocation
US20080095133A1 (en) * 2006-10-23 2008-04-24 Shu Kodo Method for reducing inter-cell interference in communications system
KR101098352B1 (ko) 2006-10-26 2011-12-26 콸콤 인코포레이티드 무선 통신 시스템에서 패킷 검출을 위한 방법 및 장치
US20080240013A1 (en) * 2007-03-30 2008-10-02 Sony Ericsson Mobile Communications Ab Power Control for Compressed Mode in WCDMA System
KR100846344B1 (ko) 2007-01-05 2008-07-15 삼성전자주식회사 이동통신 시스템에서 전송 제어 프로토콜의 전송 지연을줄이기 위한 장치 및 방법
US20090023448A1 (en) * 2007-02-21 2009-01-22 Qualcomm Incorporated Method and apparatus for inter-system handover
CN101047434B (zh) * 2007-04-10 2010-09-29 华为技术有限公司 一种时间标签同步方法、系统、装置
CN101743770B (zh) * 2007-06-19 2014-12-10 艾利森电话股份有限公司 在无线通信系统中在切换期间改进的资源预留
JP5135946B2 (ja) * 2007-08-14 2013-02-06 富士通株式会社 無線測位システム
US8233432B2 (en) * 2007-08-31 2012-07-31 Silicon Image, Inc. Ensuring physical locality of entities sharing data
US8103267B2 (en) * 2007-09-26 2012-01-24 Via Telecom, Inc. Femtocell base station with mobile station capability
US8248923B2 (en) * 2007-10-05 2012-08-21 Via Telecom, Inc. Automatic provisioning of admission policy for femtocell
US8223683B2 (en) * 2007-10-05 2012-07-17 VIA Telecom, Inc Automatic provisioning of femtocell
US8937936B2 (en) * 2007-10-05 2015-01-20 Via Telecom Inc. Acquiring time synchronization and location information with a femtocell
US8213391B2 (en) * 2007-10-05 2012-07-03 Via Telecom, Inc. Time synchronization of femtocell
US9363770B2 (en) * 2007-10-05 2016-06-07 Ipcomm Automatic provisioning of handoff parameters for femtocell
US8472374B2 (en) * 2007-11-07 2013-06-25 Telefonaktiebolaget L M Ericsson (Publ) Distinguishing between synchronized and asynchronous mobile communications networks
CN101868993B (zh) * 2007-11-21 2015-04-08 黑莓有限公司 为对正在从源基站切换到目标基站的移动台分配资源计算动作时间
KR101425440B1 (ko) * 2008-01-14 2014-08-04 삼성전자주식회사 멀티-스테이션의 연합 자원 할당 및 연합 그룹 핸드오버를위한 이동통신 시스템 및 연합 자원 할당 방법
KR101500310B1 (ko) * 2008-01-29 2015-03-18 알카텔-루센트 유에스에이 인코포레이티드 모바일 디바이스들을 포지셔닝하는 방법 및 모바일 디바이스들을 포지셔닝하는 장치
US8432878B2 (en) * 2008-05-02 2013-04-30 Industrial Technology Research Institute Method and apparatus for wireless communication
US8699450B2 (en) * 2008-05-11 2014-04-15 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US9036599B2 (en) * 2008-05-11 2015-05-19 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US8744493B2 (en) * 2008-05-28 2014-06-03 Via Telecom, Inc. Localized silence area for mobile devices
JP5233454B2 (ja) * 2008-07-08 2013-07-10 富士通株式会社 移動端末局および受信品質測定方法
JP5343747B2 (ja) * 2008-09-30 2013-11-13 日本電気株式会社 無線通信システム、管理サーバ、ネットワーク選択方法、および管理サーバプログラム
US8478228B2 (en) * 2008-10-20 2013-07-02 Qualcomm Incorporated Mobile receiver with location services capability
CN102197701B (zh) * 2008-10-24 2014-09-24 日本电气株式会社 无线基站、无线接入网、通信控制电路、存储介质和通信控制方法
US8892722B1 (en) * 2009-06-22 2014-11-18 Marvell International Ltd. Peer-to-peer discovery systems and methods
US8600297B2 (en) * 2009-07-28 2013-12-03 Qualcomm Incorporated Method and system for femto cell self-timing and self-locating
US9037163B2 (en) * 2009-10-09 2015-05-19 Qualcomm Incorporated Method and apparatus for continuity of positioning determination at handover
EP2456106B1 (de) * 2010-11-22 2013-11-06 Sequans Communications Zellensuchverfahren für einen Abwärtskanal eines OFDMA-Übertragungssystems
CN102547961B (zh) * 2010-12-10 2016-06-08 华为技术有限公司 基站间同步的方法、装置及系统
JP5644672B2 (ja) * 2011-05-24 2014-12-24 富士通株式会社 移動局装置及び同期タイミング決定方法
US8738042B2 (en) 2011-10-12 2014-05-27 Qualcomm Incorporated Methods, systems, and devices for determining a closest base station to a multi-mode mobile device
US9369845B2 (en) 2012-03-23 2016-06-14 Skyhook Wireless, Inc. Methods and systems of assigning estimated positions and attributes to wireless access points in a positioning system
US9801155B2 (en) * 2012-09-17 2017-10-24 Intel Corporation Apparatus system and method of time-of-flight positioning via neighbor list
CN103983275B (zh) * 2014-04-28 2016-11-09 上海融军科技有限公司 双基准信号源飞行器方向标定方法
CN110146905B (zh) * 2018-02-12 2021-06-29 清华大学 定位信号接收方法和接收机
US11696279B2 (en) * 2020-03-31 2023-07-04 Qualcomm Incorporated Mitigating receive time difference when using a single beam in inter-band carrier aggregation
US11395252B2 (en) 2020-07-23 2022-07-19 Skyhook Wireless, Inc. Crowd sourced RTT-based positioning

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241565B1 (de) 1986-04-11 1990-08-22 ANT Nachrichtentechnik GmbH Verfahren zum Ermitteln der Aufenthaltsfunkzelle einer Mobilstation innerhalb eines Mobilfunknetzes
US5440561A (en) 1991-09-30 1995-08-08 Motorola, Inc. Method for establishing frame synchronization within a TDMA communication system
BR9405406A (pt) 1993-06-14 1999-09-08 Ericsson Telefon Ab L M Processo e sistema suscetìvel de múltiplo acesso por divisão de código para sistemas de comunicação celulares
FR2739244B1 (fr) * 1995-09-26 1997-11-14 Alcatel Mobile Comm France Station de base pour systeme cellulaire de radiocommunications mobiles et systeme de synchronisation de telles stations de base
AU733935B2 (en) 1996-06-06 2001-05-31 Qualcomm Incorporated Using a signal with increased power for determining the position of a mobile subscriber in a CDMA cellular telephone system
US5859612A (en) * 1996-06-06 1999-01-12 Qualcomm Incorporated Method for using an antenna with a rotating beam for determining the position of a mobile subscriber in a CDMA cellular telephone system
EP0845877A3 (de) * 1996-11-28 2002-03-27 Oki Electric Industry Co., Ltd. Mobile Kommunikationsanordnung zur Herstellung einer Rufweiterleitung mit korrigiertem Phasenunterschied und Rahmensynchronisationssignalen
JP2845228B2 (ja) * 1996-12-10 1999-01-13 日本電気株式会社 隣接セル同期検出方式
US5991330A (en) * 1997-06-27 1999-11-23 Telefonaktiebolaget L M Ericsson (Pub1) Mobile Station synchronization within a spread spectrum communication systems
US5872774A (en) * 1997-09-19 1999-02-16 Qualcomm Incorporated Mobile station assisted timing synchronization in a CDMA communication system
US6307840B1 (en) * 1997-09-19 2001-10-23 Qualcomm Incorporated Mobile station assisted timing synchronization in CDMA communication system
US6101175A (en) * 1997-10-31 2000-08-08 Motorola, Inc. Method and apparatus for handoff within a communication system
US6208871B1 (en) * 1998-02-27 2001-03-27 Motorola, Inc. Method and apparatus for providing a time adjustment to a wireless communication system
FI106494B (fi) * 1998-11-05 2001-02-15 Nokia Networks Oy Kehystahdistusmekanismi
BR0008497A (pt) * 1999-02-26 2002-09-24 Qualcomm Inc Método e sistema para repasse entre uma estação base cdma assìncrona e uma estação base cdma sìncrona

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US6526039B1 (en) 2003-02-25
EP1055295A1 (de) 2000-11-29
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AU761795B2 (en) 2003-06-12
BR9907857A (pt) 2000-10-24
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CA2320996A1 (en) 1999-08-19
JP4373002B2 (ja) 2009-11-25
CN1296679A (zh) 2001-05-23
CN1126298C (zh) 2003-10-29
AR018283A1 (es) 2001-11-14
WO1999041854A1 (en) 1999-08-19
CA2320996C (en) 2009-01-20
EP1055295B1 (de) 2008-07-02
AU2650899A (en) 1999-08-30

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