WO2010033835A3 - Synchronizing a base station in a wireless communication system - Google Patents

Synchronizing a base station in a wireless communication system Download PDF

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Publication number
WO2010033835A3
WO2010033835A3 PCT/US2009/057527 US2009057527W WO2010033835A3 WO 2010033835 A3 WO2010033835 A3 WO 2010033835A3 US 2009057527 W US2009057527 W US 2009057527W WO 2010033835 A3 WO2010033835 A3 WO 2010033835A3
Authority
WO
WIPO (PCT)
Prior art keywords
base station
synchronizing
wireless communication
communication system
transmissions
Prior art date
Application number
PCT/US2009/057527
Other languages
French (fr)
Other versions
WO2010033835A2 (en
Inventor
Ravi Palanki
Parag A. Agashe
Vikram Gupta
Rajarshi Gupta
Naga Bhushan
Original Assignee
Qualcomm Incorporated
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42037600&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010033835(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to PL09792725T priority Critical patent/PL2329669T3/en
Priority to RU2011115200/07A priority patent/RU2478262C2/en
Priority to KR1020117008954A priority patent/KR101234732B1/en
Priority to DK09792725.5T priority patent/DK2329669T3/en
Priority to ES09792725.5T priority patent/ES2526361T3/en
Priority to BRPI0918052-4A priority patent/BRPI0918052B1/en
Priority to EP09792725.5A priority patent/EP2329669B1/en
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to EP14167754.2A priority patent/EP2765815B1/en
Priority to JP2011528005A priority patent/JP5199476B2/en
Priority to CN200980136456.8A priority patent/CN102160433B/en
Priority to CA2736101A priority patent/CA2736101C/en
Publication of WO2010033835A2 publication Critical patent/WO2010033835A2/en
Publication of WO2010033835A3 publication Critical patent/WO2010033835A3/en
Priority to ZA2011/02420A priority patent/ZA201102420B/en
Priority to HK12101520.3A priority patent/HK1161487A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Abstract

A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference.
PCT/US2009/057527 2008-09-19 2009-09-18 Synchronizing a base station in a wireless communication system WO2010033835A2 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
CA2736101A CA2736101C (en) 2008-09-19 2009-09-18 Synchronizing a base station in a wireless communication system
EP09792725.5A EP2329669B1 (en) 2008-09-19 2009-09-18 Method and apparatus for synchronizing a base station in a wireless communication system
KR1020117008954A KR101234732B1 (en) 2008-09-19 2009-09-18 Synchronizing a base station in a wireless communication system
DK09792725.5T DK2329669T3 (en) 2008-09-19 2009-09-18 Method and apparatus for synchronizing a base station in a wireless communication system
EP14167754.2A EP2765815B1 (en) 2008-09-19 2009-09-18 Synchronizing a base station in a wireless communication system
BRPI0918052-4A BRPI0918052B1 (en) 2008-09-19 2009-09-18 synchronization of a base station in a wireless communication system
RU2011115200/07A RU2478262C2 (en) 2008-09-19 2009-09-18 Base station synchronisation in wireless communication system
PL09792725T PL2329669T3 (en) 2008-09-19 2009-09-18 Method and apparatus for synchronizing a base station in a wireless communication system
ES09792725.5T ES2526361T3 (en) 2008-09-19 2009-09-18 Procedure and apparatus for synchronizing a base station in a wireless communications system
JP2011528005A JP5199476B2 (en) 2008-09-19 2009-09-18 Synchronizing base stations in a wireless communication system
CN200980136456.8A CN102160433B (en) 2008-09-19 2009-09-18 Synchronizing a base station in a wireless communication system
ZA2011/02420A ZA201102420B (en) 2008-09-19 2011-03-31 Synchronizing a base station in a wireless communication system
HK12101520.3A HK1161487A1 (en) 2008-09-19 2012-02-16 Synchronizing a base station in a wireless communication system

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US9836008P 2008-09-19 2008-09-19
US61/098,360 2008-09-19
US11546508P 2008-11-17 2008-11-17
US61/115,465 2008-11-17
US12/561,844 2009-09-17
US12/561,844 US8614975B2 (en) 2008-09-19 2009-09-17 Synchronizing a base station in a wireless communication system

Publications (2)

Publication Number Publication Date
WO2010033835A2 WO2010033835A2 (en) 2010-03-25
WO2010033835A3 true WO2010033835A3 (en) 2010-05-14

Family

ID=42037600

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/057527 WO2010033835A2 (en) 2008-09-19 2009-09-18 Synchronizing a base station in a wireless communication system

Country Status (17)

Country Link
US (2) US8614975B2 (en)
EP (2) EP2329669B1 (en)
JP (3) JP5199476B2 (en)
KR (1) KR101234732B1 (en)
CN (2) CN104320842B (en)
BR (1) BRPI0918052B1 (en)
CA (1) CA2736101C (en)
DK (1) DK2329669T3 (en)
ES (2) ES2743806T3 (en)
HK (2) HK1161487A1 (en)
HU (1) HUE044811T2 (en)
PL (1) PL2329669T3 (en)
PT (1) PT2329669E (en)
RU (1) RU2478262C2 (en)
TW (1) TWI424771B (en)
WO (1) WO2010033835A2 (en)
ZA (1) ZA201102420B (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101878455B (en) * 2007-11-30 2012-12-19 三菱电机株式会社 Time synchronization system and time synchronization method in train
US8379625B2 (en) * 2007-12-18 2013-02-19 Airvana Llc Obtaining time information in a cellular network
US8520659B2 (en) * 2007-12-18 2013-08-27 Airvana Llc Absolute time recovery
US8614975B2 (en) 2008-09-19 2013-12-24 Qualcomm Incorporated Synchronizing a base station in a wireless communication system
US9037155B2 (en) * 2008-10-28 2015-05-19 Sven Fischer Time of arrival (TOA) estimation for positioning in a wireless communication network
US8982851B2 (en) 2009-01-06 2015-03-17 Qualcomm Incorporated Hearability improvements for reference signals
US8688139B2 (en) 2009-09-10 2014-04-01 Qualcomm Incorporated Concurrent wireless transmitter mapping and mobile station positioning
JP5391503B2 (en) * 2009-09-28 2014-01-15 京セラ株式会社 Radio base station, reference signal supply device, radio base station system, and radio base station system operation method
RU2544234C2 (en) * 2009-10-30 2015-03-20 Нокиа Солюшнз энд Нетуоркс Ой HOME EVOLVED NODE B (HeNB) BLIND DETECTION FOR HIERARCHY CONFIGURATION
WO2011097770A1 (en) * 2010-02-15 2011-08-18 Nokia Siemens Networks Oy Synchronisation in a communication system
US9091746B2 (en) 2010-07-01 2015-07-28 Qualcomm Incorporated Determination of positions of wireless transceivers to be added to a wireless communication network
KR20120034902A (en) * 2010-10-04 2012-04-13 삼성전자주식회사 Communication method of macro base station, macro terminal, micro base station and micro terminal for interference control in hierarchical cellular network
US20120231807A1 (en) * 2011-03-11 2012-09-13 Qualcomm Incorporated Frequency and timing control for femtocell
EP2707976B1 (en) * 2011-05-13 2018-02-28 Telefonaktiebolaget LM Ericsson (publ) Time synchronisation in a communication network
US9380580B2 (en) 2012-04-04 2016-06-28 Nokia Technologies Oy Method and apparatus for transmission synchronization utilizing a router advertisement
CN103517397B (en) * 2012-06-15 2018-01-30 中兴通讯股份有限公司 A kind of method of periodic empty synchronization and base station
WO2014117322A1 (en) * 2013-01-29 2014-08-07 华为技术有限公司 Synchronization method and base station
JP6204100B2 (en) * 2013-07-23 2017-09-27 株式会社Ｎｔｔドコモ Wireless base station and wireless communication method
US20150103817A1 (en) * 2013-10-11 2015-04-16 Qualcomm Incorporated Global time synchronization server for wireless devices
US9544863B2 (en) * 2013-10-18 2017-01-10 Telefonaktiebolaget Lm Ericsson (Publ) Over-the-air synchronization for small cells in a wireless communication network
WO2015076585A1 (en) * 2013-11-20 2015-05-28 Lg Electronics Inc. Method and apparatus for performing synchronization by a cell based on network listening
WO2015094032A1 (en) * 2013-12-17 2015-06-25 Telefonaktiebolaget L M Ericsson (Publ) Provision of stable clock information
WO2015106445A1 (en) * 2014-01-17 2015-07-23 富士通株式会社 Interaction method for synchronization between cells, apparatus and communication system
CN104812051B (en) * 2014-01-24 2019-10-25 中兴通讯股份有限公司 A kind of method that realizing air interface synchronization, equipment and system
CN104918318A (en) * 2014-03-11 2015-09-16 中兴通讯股份有限公司 Interface synchronization method and system
WO2015139315A1 (en) * 2014-03-21 2015-09-24 Nokia Solutions And Networks Oy Method and apparatus for network synchronization, computer program product for performing the method and system comprising the apparatus
CN105376751B (en) * 2014-09-02 2019-06-11 中兴通讯股份有限公司 A kind of detection, analysis, alarm method and device
WO2016054820A1 (en) * 2014-10-11 2016-04-14 Telefonaktiebolaget L M Ericsson (Publ) Method and access point for maintaining synchronization among access points in radio access network
CN104469928B (en) * 2014-11-28 2018-03-23 电信科学技术研究院 A kind of air interface synchronization method and device based on network intercepting
EP3437211A4 (en) * 2015-03-30 2019-09-04 Nokia Solutions and Networks Oy System and method for event synchronization in wireless networks
CN106686715A (en) * 2015-11-10 2017-05-17 沈阳中科奥维科技股份有限公司 Maintenance method of time synchronizing time source of TDMA based wireless sensor network
JP6581930B2 (en) * 2016-03-17 2019-09-25 Kddi株式会社 Base station synchronization apparatus, base station apparatus, base station synchronization method, and computer program
US10244495B1 (en) 2017-09-28 2019-03-26 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Systems and methods for synchronization signal timeslot reselection for synchronization target selection in networks
CN108513725B (en) * 2017-09-28 2020-10-27 香港应用科技研究院有限公司 System and method for synchronization signal time slot reselection for selecting synchronization target in network
US10945226B2 (en) * 2017-10-09 2021-03-09 Qualcomm Incorporated Timing and frame structure in an integrated access backhaul (IAB) network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041746A1 (en) * 1999-03-29 2000-10-04 Alcatel Process for synchronising base stations in a wireless communication network
EP1148755A1 (en) * 2000-04-21 2001-10-24 Mitsubishi Electric Information Technology Centre Europe B.V. Method for determining the position of a mobile station of a mobile telecommunications network
EP1355450A1 (en) * 2002-04-10 2003-10-22 Lucent Technologies Inc. Channel overlap mitigation in wireless LANs using a central medium access control

Family Cites Families (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6522890B2 (en) * 1995-12-22 2003-02-18 Cambridge Positioning Systems, Ltd. Location and tracking 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
US6671514B1 (en) 1997-10-16 2003-12-30 Telefonaktiebolaget Lm Ericsson (Publ) System and method for location positioning a mobile station in a CDMA cellular system
FI980076A (en) 1998-01-15 1999-07-16 Nokia Networks Oy The cellular radio system
US6317049B1 (en) * 1998-02-17 2001-11-13 Souhail Toubia Apparatus and method for locating missing persons, animals, and objects
US6185429B1 (en) * 1998-07-31 2001-02-06 Motorola, Inc. Method and apparatus for performing a time synchronization of a base site
US6317474B1 (en) * 1998-08-06 2001-11-13 Motorola, Inc. Method and apparatus for estimating time-of-arrival of a synchronization signal sent simultaneously from at least two non-collocated transmitters
US6590881B1 (en) 1998-12-04 2003-07-08 Qualcomm, Incorporated Method and apparatus for providing wireless communication system synchronization
KR100487243B1 (en) 1998-12-17 2005-08-31 삼성전자주식회사 Device and method for estimating the position of terminal in mobile communication system
GB9900340D0 (en) * 1999-01-09 1999-02-24 Motorola Ltd A method of and system for estimating a time of arrival of a radio signal
US6714563B1 (en) * 1999-04-26 2004-03-30 Cisco Technology, Inc. Network clock synchronization scheme
US6453168B1 (en) 1999-08-02 2002-09-17 Itt Manufacturing Enterprises, Inc Method and apparatus for determining the position of a mobile communication device using low accuracy clocks
JP3539338B2 (en) * 2000-03-23 2004-07-07 日本電気株式会社 Priority data transfer method
US6445927B1 (en) 2000-09-18 2002-09-03 Motorola, Inc. Method and apparatus for calibrating base station locations and perceived time bias offsets in an assisted GPS transceiver
JP4226325B2 (en) 2000-11-14 2009-02-18 シンボル テクノロジーズ インコーポレイテッド Method and apparatus for identifying asset location in a communication network
US8754807B2 (en) 2001-02-02 2014-06-17 Trueposition, Inc. Time, frequency, and location determination for femtocells
US6570530B2 (en) 2001-03-05 2003-05-27 Qualcomm Incorporated Method and apparatus providing improved position estimate based on an initial coarse position estimate
US6876326B2 (en) 2001-04-23 2005-04-05 Itt Manufacturing Enterprises, Inc. Method and apparatus for high-accuracy position location using search mode ranging techniques
EP1278074A1 (en) 2001-07-17 2003-01-22 Cambridge Positioning Systems Limited Radio positioning systems
GB2382270B (en) 2001-11-16 2006-06-14 Nec Technologies Improved location systems in cellular communications networks
US20030119523A1 (en) * 2001-12-20 2003-06-26 Willem Bulthuis Peer-based location determination
US6944540B2 (en) 2002-03-28 2005-09-13 Motorola, Inc. Time determination in satellite positioning system receivers and methods therefor
CN1192650C (en) * 2002-04-26 2005-03-09 华为技术有限公司 Directly amplifying station and its mobile station locating method
PL375234A1 (en) * 2002-08-13 2005-11-28 Drs Communications Company, Llc Method and system for determining relative positions of networked mobile communication devices
JP3801123B2 (en) 2002-09-06 2006-07-26 株式会社日立製作所 Wireless system, server and base station
US7369671B2 (en) * 2002-09-16 2008-05-06 Starkey, Laboratories, Inc. Switching structures for hearing aid
US20040052228A1 (en) 2002-09-16 2004-03-18 Jose Tellado Method and system of frequency and time synchronization of a transceiver to signals received by the transceiver
US7660588B2 (en) * 2002-10-17 2010-02-09 Qualcomm Incorporated Method and apparatus for improving radio location accuracy with measurements
AU2003902613A0 (en) 2003-05-26 2003-06-12 Commonwealth Scientific And Industrial Research Organisation Self-surveying method
US7312753B2 (en) * 2003-10-29 2007-12-25 Nec Corporation Mobile terminal positioning system
WO2005081012A1 (en) 2004-02-17 2005-09-01 Jadi, Inc. Ultra wide band navigation system with mobile base stations
FR2871241B1 (en) * 2004-06-07 2007-01-26 Commissariat Energie Atomique ULB LOCATION SYSTEM FOR AVALANCHES VICTIMS RELIEF
JP2006003187A (en) 2004-06-17 2006-01-05 Hitachi Ltd Wireless network system
KR100824044B1 (en) * 2004-06-21 2008-04-21 삼성전자주식회사 Method and system for acquiring time sync between a base station in a communication system
CN100488080C (en) 2004-06-30 2009-05-13 中兴通讯股份有限公司 Method and device for implementing synchronization of outdoor unit and indoor unit of TD-SCDMA system
US7826343B2 (en) 2004-09-07 2010-11-02 Qualcomm Incorporated Position location signaling method apparatus and system utilizing orthogonal frequency division multiplexing
US7233800B2 (en) * 2004-10-14 2007-06-19 Qualcomm, Incorporated Wireless terminal location using apparatus and methods employing carrier diversity
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 (en) * 2005-03-31 2010-12-01 株式会社エヌ・ティ・ティ・ドコモ Wireless communication system, base station, mobile station, and wireless communication method
US7710322B1 (en) * 2005-05-10 2010-05-04 Multispectral Solutions, Inc. Extensible object location system and method using multiple references
JP4869724B2 (en) 2005-06-14 2012-02-08 株式会社エヌ・ティ・ティ・ドコモ Transmission device, transmission method, reception device, and reception method
US7903628B2 (en) * 2005-08-22 2011-03-08 Qualcomm Incorporated Configurable pilots in a wireless communication system
US9042917B2 (en) * 2005-11-07 2015-05-26 Qualcomm Incorporated Positioning for WLANS and other wireless networks
US7893873B2 (en) 2005-12-20 2011-02-22 Qualcomm Incorporated Methods and systems for providing enhanced position location in wireless communications
US8150421B2 (en) 2005-12-30 2012-04-03 Trueposition, Inc. User plane uplink time difference of arrival (U-TDOA)
US7706328B2 (en) * 2006-01-04 2010-04-27 Qualcomm Incorporated Methods and apparatus for position location in a wireless network
KR100695074B1 (en) * 2006-01-09 2007-03-14 삼성전자주식회사 Time synchronizing method in wireless sensor networks
US20070177605A1 (en) * 2006-01-30 2007-08-02 Benco David S Method for utilizing a backup timing source when GPS becomes nonfunctional
EP2838237B1 (en) * 2006-04-12 2016-06-29 Lg Electronics Inc. Method and devices for allocating reference signals in mimo system
US7880676B2 (en) * 2006-04-19 2011-02-01 Wichorus Inc. Method and system for hybrid positioning using partial distance information
US8289159B2 (en) 2006-04-26 2012-10-16 Qualcomm Incorporated Wireless localization apparatus and method
JP2008002866A (en) 2006-06-21 2008-01-10 Matsushita Electric Ind Co Ltd Position-detecting system and position detection method
CN101123465B (en) 2006-08-09 2012-07-04 上海贝尔阿尔卡特股份有限公司 Method and device for synchronization of network devices in wireless communication system
JP5148613B2 (en) * 2006-08-22 2013-02-20 ジュニパー ネットワークス， インコーポレイテッド Apparatus and method for synchronized delivery of packet services on a delivery network
US7509655B2 (en) * 2006-08-30 2009-03-24 Microsoft Corporation Integration of workflow and rules
US7626544B2 (en) 2006-10-17 2009-12-01 Ut-Battelle, Llc Robust low-frequency spread-spectrum navigation system
US7729707B2 (en) * 2006-10-24 2010-06-01 Aeroscout, Inc. Method and system for synchronization offset reduction in a TDOA location system
US7797000B2 (en) * 2006-12-01 2010-09-14 Trueposition, Inc. System for automatically determining cell transmitter parameters to facilitate the location of wireless devices
US7844280B2 (en) 2006-12-12 2010-11-30 Trueposition, Inc. Location of wideband OFDM transmitters with limited receiver bandwidth
JP2008236382A (en) * 2007-03-20 2008-10-02 Toshiba Corp Radio communication system
JP2008236383A (en) 2007-03-20 2008-10-02 Toshiba Corp Radio communication system
EP3823318A1 (en) 2007-04-11 2021-05-19 Optis Wireless Technology, LLC Information on reference signal structure for neighbouring cell measurements
US8208587B2 (en) 2007-04-27 2012-06-26 Ntt Docomo, Inc. Method and system for joint time-of-arrival and amplitude estimation based on a super-resolution technique
US8331953B2 (en) * 2007-05-01 2012-12-11 Andrew Llc System and method for estimating the location of a mobile device
EP2145205B1 (en) 2007-05-01 2019-09-18 QUALCOMM Incorporated Position location for wireless communication systems
US20080285505A1 (en) * 2007-05-15 2008-11-20 Andrew Corporation System and method for network timing recovery in communications networks
CN103533639A (en) 2007-06-21 2014-01-22 高通股份有限公司 Method and apparatus for determining the position of a cellular communications network base station
US7903540B2 (en) * 2007-08-02 2011-03-08 Alvarion Ltd. Method and device for synchronization in wireless networks
JP2009052948A (en) 2007-08-24 2009-03-12 Fujitsu Ltd Position measuring method
US8233432B2 (en) * 2007-08-31 2012-07-31 Silicon Image, Inc. Ensuring physical locality of entities sharing data
US20090097452A1 (en) * 2007-10-12 2009-04-16 Qualcomm Incorporated Femto cell synchronization and pilot search methodology
US8228923B1 (en) * 2008-01-09 2012-07-24 Tellabs Operations, Inc. Method and apparatus for measuring system latency using global time stamp
US8780798B2 (en) * 2008-03-05 2014-07-15 Telefonaktiebolaget L M Ericsson (Publ) Method and devices for providing enhanced signaling
US8130657B2 (en) * 2008-03-18 2012-03-06 Palo Alto Research Center Incorporated Network routing using a retransmission-time-based link metric
US8254293B2 (en) * 2008-05-28 2012-08-28 Nivis, Llc Methods and systems for location estimation
US7990314B2 (en) 2008-06-30 2011-08-02 Liao Henry H Method and system for locating a geographical position using broadcast frequency modulation signals
US20100029295A1 (en) * 2008-07-31 2010-02-04 Assaf Touboul Gps synchronization method for wireless cellular networks
KR101208549B1 (en) * 2008-08-05 2012-12-05 엘지전자 주식회사 Reference signal transmission method for downlink multiple input multiple output system
US20100054237A1 (en) * 2008-09-04 2010-03-04 Motorola, Inc. Synchronization for femto-cell base stations
US8614975B2 (en) 2008-09-19 2013-12-24 Qualcomm Incorporated Synchronizing a base station in a wireless communication system
US9037155B2 (en) * 2008-10-28 2015-05-19 Sven Fischer Time of arrival (TOA) estimation for positioning in a wireless communication network
CN102017738A (en) * 2008-10-31 2011-04-13 联发科技股份有限公司 Downlink network synchronization mechanism for femtocell in cellular OFDM systems
KR101001558B1 (en) * 2008-11-10 2010-12-17 한국전자통신연구원 Method and apparatus for synchronous sensor network construction
US8180368B2 (en) 2008-11-11 2012-05-15 Trueposition, Inc. Femto-cell location by direct methods
KR101619446B1 (en) * 2008-12-02 2016-05-10 엘지전자 주식회사 Reference signal transmission method for downlink multiple input multiple output system
US8982851B2 (en) * 2009-01-06 2015-03-17 Qualcomm Incorporated Hearability improvements for reference signals
US7940740B2 (en) * 2009-02-03 2011-05-10 Motorola Mobility, Inc. Apparatus and method for communicating and processing a positioning reference signal based on identifier associated with a base station
US8401111B2 (en) * 2009-03-13 2013-03-19 Qualcomm Incorporated Method and apparatus for sequencing and correlating a positioning reference signal
US8811314B2 (en) * 2009-03-18 2014-08-19 Lg Electronics Inc. Method and apparatus for transmitting reference signal in wireless communication system
US8730925B2 (en) * 2009-04-09 2014-05-20 Motorola Mobility Llc Method and apparatus for generating reference signals for accurate time-difference of arrival estimation
KR101738162B1 (en) * 2009-04-10 2017-05-22 엘지전자 주식회사 Method and apparatus of transmitting positioning reference signal in wireless communication system
WO2010124448A1 (en) * 2009-04-27 2010-11-04 Huawei Technologies Co., Ltd. Positioning reference signals
WO2010126842A1 (en) * 2009-04-27 2010-11-04 Interdigital Patent Holdings, Inc. Reference signals for positioning measurements
KR101703860B1 (en) * 2009-05-05 2017-02-22 엘지전자 주식회사 Apparatus and metheod for positioing a user equipment
JP4806714B2 (en) * 2009-05-14 2011-11-02 株式会社エヌ・ティ・ティ・ドコモ Simulator apparatus and simulation method
US8467346B2 (en) * 2009-06-19 2013-06-18 Futurewei Technologies, Inc. Method and apparatus for generating time-frequency patterns for reference signal in an OFDM wireless communication system
KR101710204B1 (en) * 2009-07-28 2017-03-08 엘지전자 주식회사 Method and apparatus of transmitting reference signal for channel measurement in multiple input multiple output communication system
KR101237666B1 (en) * 2009-07-28 2013-02-26 엘지전자 주식회사 Method and apparatus of transmitting reference signal for reducing inter-cell interference in multiple input multiple output communication system
US8688139B2 (en) * 2009-09-10 2014-04-01 Qualcomm Incorporated Concurrent wireless transmitter mapping and mobile station positioning
US20110124347A1 (en) * 2009-09-15 2011-05-26 Byron Hua Chen Method And Apparatus for UE Positioning in LTE Networks
US8174444B2 (en) * 2009-09-26 2012-05-08 Rincon Research Corporation Method of correlating known image data of moving transmitters with measured radio signals
US9091746B2 (en) * 2010-07-01 2015-07-28 Qualcomm Incorporated Determination of positions of wireless transceivers to be added to a wireless communication network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1041746A1 (en) * 1999-03-29 2000-10-04 Alcatel Process for synchronising base stations in a wireless communication network
EP1148755A1 (en) * 2000-04-21 2001-10-24 Mitsubishi Electric Information Technology Centre Europe B.V. Method for determining the position of a mobile station of a mobile telecommunications network
EP1355450A1 (en) * 2002-04-10 2003-10-22 Lucent Technologies Inc. Channel overlap mitigation in wireless LANs using a central medium access control

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