KR20050004222A - 무선 애드-혹 통신 네트워크에 있어서 도달시간 측정의정확도를 향상시키기 위한 시스템 및 방법 - Google Patents

무선 애드-혹 통신 네트워크에 있어서 도달시간 측정의정확도를 향상시키기 위한 시스템 및 방법 Download PDF

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Publication number
KR20050004222A
KR20050004222A KR10-2004-7019012A KR20047019012A KR20050004222A KR 20050004222 A KR20050004222 A KR 20050004222A KR 20047019012 A KR20047019012 A KR 20047019012A KR 20050004222 A KR20050004222 A KR 20050004222A
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KR
South Korea
Prior art keywords
node
response
calculate
signal
control
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Application number
KR10-2004-7019012A
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English (en)
Korean (ko)
Inventor
구에넬 티. 스트럿
존 엠. 벨세아
Original Assignee
메시네트웍스, 인코포레이티드
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Application filed by 메시네트웍스, 인코포레이티드 filed Critical 메시네트웍스, 인코포레이티드
Publication of KR20050004222A publication Critical patent/KR20050004222A/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • 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
    • 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
    • H04W56/008—Open loop measurement based on arrival time vs. expected arrival time detecting arrival of signal based on received raw signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
KR10-2004-7019012A 2002-06-05 2003-06-04 무선 애드-혹 통신 네트워크에 있어서 도달시간 측정의정확도를 향상시키기 위한 시스템 및 방법 KR20050004222A (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US38556202P 2002-06-05 2002-06-05
US60/385,562 2002-06-05
US10/303,842 2002-11-26
US10/303,842 US7054126B2 (en) 2002-06-05 2002-11-26 System and method for improving the accuracy of time of arrival measurements in a wireless ad-hoc communications network
PCT/US2003/017259 WO2003105495A2 (en) 2002-06-05 2003-06-04 A system and method for improving the accuracy of time of arrival measurements in a wireless ad-hoc communications network

Publications (1)

Publication Number Publication Date
KR20050004222A true KR20050004222A (ko) 2005-01-12

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Application Number Title Priority Date Filing Date
KR10-2004-7019012A KR20050004222A (ko) 2002-06-05 2003-06-04 무선 애드-혹 통신 네트워크에 있어서 도달시간 측정의정확도를 향상시키기 위한 시스템 및 방법

Country Status (7)

Country Link
US (1) US7054126B2 (US20030227895A1-20031211-M00003.png)
EP (1) EP1510021A4 (US20030227895A1-20031211-M00003.png)
JP (1) JP4291265B2 (US20030227895A1-20031211-M00003.png)
KR (1) KR20050004222A (US20030227895A1-20031211-M00003.png)
AU (1) AU2003249674A1 (US20030227895A1-20031211-M00003.png)
CA (1) CA2484796A1 (US20030227895A1-20031211-M00003.png)
WO (1) WO2003105495A2 (US20030227895A1-20031211-M00003.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7528774B2 (en) 2006-07-18 2009-05-05 Samsung Electronics Co., Ltd. Apparatus for measuring azimuth by using phase difference and method of using the same

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7941149B2 (en) * 2002-05-13 2011-05-10 Misonimo Chi Acquistion L.L.C. Multi-hop ultra wide band wireless network communication
US7852796B2 (en) 2002-05-13 2010-12-14 Xudong Wang Distributed multichannel wireless communication
US7835372B2 (en) * 2002-05-13 2010-11-16 Weilin Wang System and method for transparent wireless bridging of communication channel segments
US7069483B2 (en) * 2002-05-13 2006-06-27 Kiyon, Inc. System and method for identifying nodes in a wireless mesh network
US7957356B2 (en) 2002-05-13 2011-06-07 Misomino Chi Acquisitions L.L.C. Scalable media access control for multi-hop high bandwidth communications
US8780770B2 (en) * 2002-05-13 2014-07-15 Misonimo Chi Acquisition L.L.C. Systems and methods for voice and video communication over a wireless network
US7923550B2 (en) 2003-04-14 2011-04-12 Xiaolian Gao Reagent compounds and methods of making and using the same
US7126951B2 (en) 2003-06-06 2006-10-24 Meshnetworks, Inc. System and method for identifying the floor number where a firefighter in need of help is located using received signal strength indicator and signal propagation time
JP5075339B2 (ja) * 2004-01-13 2012-11-21 エル・エス・アイ ジャパン株式会社 Ｉｃタグのロケーション認識装置および方法
WO2006011718A1 (en) * 2004-07-26 2006-02-02 Samsung Electronics Co., Ltd. Location tracking method in coordinator-based wireless network
US7382804B2 (en) * 2004-08-05 2008-06-03 Meshnetworks, Inc. Bandwidth efficient system and method for ranging nodes in a wireless communication network
US20060045083A1 (en) * 2004-08-25 2006-03-02 Meshnetworks, Inc. System and method for enabling the coexistence of non-802.11 waveforms in the presence of 802.11 compliant waveforms in a communication network
DE102004059946B4 (de) 2004-12-13 2008-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln eines Korrelationsmaximums
DE102004059958B4 (de) * 2004-12-13 2007-10-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Bestimmen eines Korrelationswertes
DE102004059941A1 (de) 2004-12-13 2006-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Bestimmen eines Eintreffzeitpunktes einer Empfangsfolge
DE102004059940A1 (de) * 2004-12-13 2006-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalkonvertierer zum Konvertieren eines Startsignals in ein Endsignal und Verfahren zum Konvertieren eines Startsignals in ein Endsignal
DE102004059957A1 (de) * 2004-12-13 2006-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Synchronisationsvorrichtung und Vorrichtung zum Erzeugen eines Synchronisationssignals
DE102004059980A1 (de) 2004-12-13 2006-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mischer zum Mischen eines Signals und Verfahren zum Mischen eines Signals
US7773569B2 (en) * 2005-05-19 2010-08-10 Meshnetworks, Inc. System and method for efficiently routing data packets and managing channel access and bandwidth in wireless multi-hopping networks
US20070032245A1 (en) * 2005-08-05 2007-02-08 Alapuranen Pertti O Intelligent transportation system and method
US7653004B2 (en) * 2005-11-30 2010-01-26 Motorola, Inc. Method and system for improving time of arrival (TOA) measurements in a wireless communication network
US7489904B2 (en) * 2005-12-13 2009-02-10 Motorola, Inc. Method and system for determining the time of arrival of a direct radio signal
US8175613B2 (en) * 2006-08-04 2012-05-08 Misonimo Chi Acquisitions L.L.C. Systems and methods for determining location of devices within a wireless network
US7295159B1 (en) * 2006-10-26 2007-11-13 Motorola, Inc. Method for measuring time of arrival of signals in a communications network
KR101102719B1 (ko) 2006-12-07 2012-01-05 미소니모 카이 액퀴지션 엘엘씨 타임슬롯 및 채널 할당을 위한 시스템 및 방법
WO2009022192A1 (en) * 2007-08-14 2009-02-19 Nokia Corporation Distance estimation
US8643545B2 (en) * 2007-12-27 2014-02-04 Motorola Solutions, Inc. Determining position of a node and representing the position as a position probability space
US8150378B2 (en) * 2007-12-27 2012-04-03 Motorola Solutions, Inc. Determining position of a node based on aged position data
US8130146B2 (en) * 2008-07-29 2012-03-06 Motorola Solutions, Inc. Method for measuring the time of arrival of radio signals
US8199635B2 (en) * 2008-08-12 2012-06-12 General Atomics Method and system for network setup and maintenance and medium access control for a wireless sensor network
US9222785B2 (en) * 2012-11-09 2015-12-29 Intel Corporation Systems and methods of reducing timing measurement error due to clock offset
US10673485B2 (en) * 2016-03-30 2020-06-02 Telefonaktiebolaget Lm Ericsson (Publ) Method and receiving node for determining time of arrival, TOA, for a received radio signal
EP3315991A1 (en) * 2016-10-28 2018-05-02 Fraunhofer Gesellschaft zur Förderung der Angewand Time of arrival (toa) measurements

Family Cites Families (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910521A (en) * 1981-08-03 1990-03-20 Texas Instruments Incorporated Dual band communication receiver
US4494192A (en) * 1982-07-21 1985-01-15 Sperry Corporation High speed bus architecture
JPS59115633A (ja) * 1982-12-22 1984-07-04 Toshiba Corp 情報伝送方式
US4675863A (en) * 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US4747130A (en) * 1985-12-17 1988-05-24 American Telephone And Telegraph Company, At&T Bell Laboratories Resource allocation in distributed control systems
CA1261080A (en) * 1985-12-30 1989-09-26 Shunichiro Tejima Satellite communications system with random multiple access and time slot reservation
US4742357A (en) * 1986-09-17 1988-05-03 Rackley Ernie C Stolen object location system
GB2229064B (en) * 1987-06-11 1990-12-12 Software Sciences Limited An area communications system
US4964126A (en) * 1988-09-30 1990-10-16 Massachusetts Institute Of Technology Fault tolerant signal processing machine and method
US5210846B1 (en) * 1989-05-15 1999-06-29 Dallas Semiconductor One-wire bus architecture
US5555425A (en) * 1990-03-07 1996-09-10 Dell Usa, L.P. Multi-master bus arbitration system in which the address and data lines of the bus may be separately granted to individual masters
US5068916A (en) * 1990-10-29 1991-11-26 International Business Machines Corporation Coordination of wireless medium among a plurality of base stations
US5369748A (en) * 1991-08-23 1994-11-29 Nexgen Microsystems Bus arbitration in a dual-bus architecture where one bus has relatively high latency
US5241542A (en) * 1991-08-23 1993-08-31 International Business Machines Corporation Battery efficient operation of scheduled access protocol
US5231634B1 (en) * 1991-12-18 1996-04-02 Proxim Inc Medium access protocol for wireless lans
US5392450A (en) * 1992-01-08 1995-02-21 General Electric Company Satellite communications system
US5896561A (en) * 1992-04-06 1999-04-20 Intermec Ip Corp. Communication network having a dormant polling protocol
FR2690252B1 (fr) * 1992-04-17 1994-05-27 Thomson Csf Procede et systeme de determination de la position et de l'orientation d'un mobile, et applications.
US5233604A (en) * 1992-04-28 1993-08-03 International Business Machines Corporation Methods and apparatus for optimum path selection in packet transmission networks
US5371734A (en) * 1993-01-29 1994-12-06 Digital Ocean, Inc. Medium access control protocol for wireless network
GB9304638D0 (en) * 1993-03-06 1993-04-21 Ncr Int Inc Wireless data communication system having power saving function
US5696903A (en) * 1993-05-11 1997-12-09 Norand Corporation Hierarchical communications system using microlink, data rate switching, frequency hopping and vehicular local area networking
US5317566A (en) * 1993-08-18 1994-05-31 Ascom Timeplex Trading Ag Least cost route selection in distributed digital communication networks
US5631897A (en) * 1993-10-01 1997-05-20 Nec America, Inc. Apparatus and method for incorporating a large number of destinations over circuit-switched wide area network connections
US5857084A (en) * 1993-11-02 1999-01-05 Klein; Dean A. Hierarchical bus structure access system
US5412654A (en) * 1994-01-10 1995-05-02 International Business Machines Corporation Highly dynamic destination-sequenced destination vector routing for mobile computers
JP2591467B2 (ja) * 1994-04-18 1997-03-19 日本電気株式会社 アクセス方式
US5502722A (en) * 1994-08-01 1996-03-26 Motorola, Inc. Method and apparatus for a radio system using variable transmission reservation
JP3043958B2 (ja) * 1994-09-29 2000-05-22 株式会社リコー 無線通信によるネットワーク通信方式
US6029217A (en) * 1994-10-03 2000-02-22 International Business Machines Corporation Queued arbitration mechanism for data processing system
EP0709982B1 (en) * 1994-10-26 2004-06-30 International Business Machines Corporation Medium access control scheme for wireless LAN using a variable length interleaved time division frame
US5618045A (en) * 1995-02-08 1997-04-08 Kagan; Michael Interactive multiple player game system and method of playing a game between at least two players
US5555540A (en) * 1995-02-17 1996-09-10 Sun Microsystems, Inc. ASIC bus structure
US5796741A (en) * 1995-03-09 1998-08-18 Nippon Telegraph And Telephone Corporation ATM bus system
US5572528A (en) * 1995-03-20 1996-11-05 Novell, Inc. Mobile networking method and apparatus
US5886992A (en) * 1995-04-14 1999-03-23 Valtion Teknillinen Tutkimuskeskus Frame synchronized ring system and method
US5517491A (en) * 1995-05-03 1996-05-14 Motorola, Inc. Method and apparatus for controlling frequency deviation of a portable transceiver
US5822309A (en) * 1995-06-15 1998-10-13 Lucent Technologies Inc. Signaling and control architecture for an ad-hoc ATM LAN
US5623495A (en) * 1995-06-15 1997-04-22 Lucent Technologies Inc. Portable base station architecture for an AD-HOC ATM lan
US5781540A (en) * 1995-06-30 1998-07-14 Hughes Electronics Device and method for communicating in a mobile satellite system
GB2303763B (en) * 1995-07-26 2000-02-16 Motorola Israel Ltd Communications system and method of operation
GB9517943D0 (en) * 1995-09-02 1995-11-01 At & T Corp Radio communication device and method
US6132306A (en) * 1995-09-06 2000-10-17 Cisco Systems, Inc. Cellular communication system with dedicated repeater channels
US6192053B1 (en) * 1995-09-07 2001-02-20 Wireless Networks, Inc. Enhanced adjacency detection protocol for wireless applications
US5615212A (en) * 1995-09-11 1997-03-25 Motorola Inc. Method, device and router for providing a contention-based reservation mechanism within a mini-slotted dynamic entry polling slot supporting multiple service classes
US5805593A (en) * 1995-09-26 1998-09-08 At&T Corp Routing method for setting up a service between an origination node and a destination node in a connection-communications network
US5805842A (en) * 1995-09-26 1998-09-08 Intel Corporation Apparatus, system and method for supporting DMA transfers on a multiplexed bus
US5701294A (en) * 1995-10-02 1997-12-23 Telefonaktiebolaget Lm Ericsson System and method for flexible coding, modulation, and time slot allocation in a radio telecommunications network
US5717689A (en) * 1995-10-10 1998-02-10 Lucent Technologies Inc. Data link layer protocol for transport of ATM cells over a wireless link
US5920821A (en) * 1995-12-04 1999-07-06 Bell Atlantic Network Services, Inc. Use of cellular digital packet data (CDPD) communications to convey system identification list data to roaming cellular subscriber stations
US5991279A (en) * 1995-12-07 1999-11-23 Vistar Telecommunications Inc. Wireless packet data distributed communications system
US5878036A (en) * 1995-12-20 1999-03-02 Spartz; Michael K. Wireless telecommunications system utilizing CDMA radio frequency signal modulation in conjunction with the GSM A-interface telecommunications network protocol
KR100197407B1 (ko) * 1995-12-28 1999-06-15 유기범 전전자 교환기에 있어서 프로세서들간 통신버스구조
US5680392A (en) * 1996-01-16 1997-10-21 General Datacomm, Inc. Multimedia multipoint telecommunications reservation systems
US5684794A (en) * 1996-01-25 1997-11-04 Hazeltine Corporation Validation of subscriber signals in a cellular radio network
US5706428A (en) * 1996-03-14 1998-01-06 Lucent Technologies Inc. Multirate wireless data communication system
US5652751A (en) * 1996-03-26 1997-07-29 Hazeltine Corporation Architecture for mobile radio networks with dynamically changing topology using virtual subnets
US5796732A (en) * 1996-03-28 1998-08-18 Cisco Technology, Inc. Architecture for an expandable transaction-based switching bus
US5805977A (en) * 1996-04-01 1998-09-08 Motorola, Inc. Method and apparatus for controlling transmissions in a two-way selective call communication system
US5943322A (en) * 1996-04-24 1999-08-24 Itt Defense, Inc. Communications method for a code division multiple access system without a base station
US5845097A (en) * 1996-06-03 1998-12-01 Samsung Electronics Co., Ltd. Bus recovery apparatus and method of recovery in a multi-master bus system
US5787080A (en) * 1996-06-03 1998-07-28 Philips Electronics North America Corporation Method and apparatus for reservation-based wireless-ATM local area network
SE518132C2 (sv) * 1996-06-07 2002-08-27 Ericsson Telefon Ab L M Metod och anordning för synkronisering av kombinerade mottagare och sändare i ett cellulärt system
US5844905A (en) * 1996-07-09 1998-12-01 International Business Machines Corporation Extensions to distributed MAC protocols with collision avoidance using RTS/CTS exchange
US5909651A (en) * 1996-08-02 1999-06-01 Lucent Technologies Inc. Broadcast short message service architecture
US5987011A (en) * 1996-08-30 1999-11-16 Chai-Keong Toh Routing method for Ad-Hoc mobile networks
US5953327A (en) * 1996-10-29 1999-09-14 Stanford Telecommunications, Inc. Class of low cross correlation non-palindromic synchronization sequences for code tracking in synchronous multiple access communication systems
US6044062A (en) * 1996-12-06 2000-03-28 Communique, Llc Wireless network system and method for providing same
US5903559A (en) * 1996-12-20 1999-05-11 Nec Usa, Inc. Method for internet protocol switching over fast ATM cell transport
US6130892A (en) * 1997-03-12 2000-10-10 Nomadix, Inc. Nomadic translator or router
US5877724A (en) * 1997-03-25 1999-03-02 Trimble Navigation Limited Combined position locating and cellular telephone system with a single shared microprocessor
US6052594A (en) * 1997-04-30 2000-04-18 At&T Corp. System and method for dynamically assigning channels for wireless packet communications
US5881095A (en) 1997-05-01 1999-03-09 Motorola, Inc. Repeater assisted channel hopping system and method therefor
US5870350A (en) * 1997-05-21 1999-02-09 International Business Machines Corporation High performance, high bandwidth memory bus architecture utilizing SDRAMs
US6240294B1 (en) * 1997-05-30 2001-05-29 Itt Manufacturing Enterprises, Inc. Mobile radio device having adaptive position transmitting capabilities
GB2326065B (en) * 1997-06-05 2002-05-29 Mentor Graphics Corp A scalable processor independent on-chip bus
US6108738A (en) * 1997-06-10 2000-08-22 Vlsi Technology, Inc. Multi-master PCI bus system within a single integrated circuit
US5987033A (en) * 1997-09-08 1999-11-16 Lucent Technologies, Inc. Wireless lan with enhanced capture provision
US6163699A (en) * 1997-09-15 2000-12-19 Ramot University Authority For Applied Research And Industrial Development Ltd. Adaptive threshold scheme for tracking and paging mobile users
US6067291A (en) * 1997-09-23 2000-05-23 Lucent Technologies Inc. Wireless local area network with enhanced carrier sense provision
US6034542A (en) * 1997-10-14 2000-03-07 Xilinx, Inc. Bus structure for modularized chip with FPGA modules
US5936953A (en) * 1997-12-18 1999-08-10 Raytheon Company Multi-mode, multi-channel communication bus
US6047330A (en) * 1998-01-20 2000-04-04 Netscape Communications Corporation Virtual router discovery system
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
US6065085A (en) * 1998-01-27 2000-05-16 Lsi Logic Corporation Bus bridge architecture for a data processing system capable of sharing processing load among a plurality of devices
US6130881A (en) * 1998-04-20 2000-10-10 Sarnoff Corporation Traffic routing in small wireless data networks
US6078566A (en) * 1998-04-28 2000-06-20 Genesys Telecommunications Laboratories, Inc. Noise reduction techniques and apparatus for enhancing wireless data network telephony
US6064626A (en) * 1998-07-31 2000-05-16 Arm Limited Peripheral buses for integrated circuit
EP0981206B1 (en) * 1998-08-19 2005-11-23 Siemens Aktiengesellschaft Spread spectrum receiver with reduction of intersymbol interference
US6304556B1 (en) * 1998-08-24 2001-10-16 Cornell Research Foundation, Inc. Routing and mobility management protocols for ad-hoc networks
US6115580A (en) * 1998-09-08 2000-09-05 Motorola, Inc. Communications network having adaptive network link optimization using wireless terrain awareness and method for use therein
US6208870B1 (en) * 1998-10-27 2001-03-27 Lucent Technologies Inc. Short message service notification forwarded between multiple short message service centers
US6285892B1 (en) * 1998-11-24 2001-09-04 Philips Electronics North America Corp. Data transmission system for reducing terminal power consumption in a wireless network
US6104712A (en) * 1999-02-22 2000-08-15 Robert; Bruno G. Wireless communication network including plural migratory access nodes
US6549594B1 (en) * 1999-05-28 2003-04-15 Nortel Networks Timing phase recovery method and apparatus
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
EP1089452A1 (en) * 1999-09-28 2001-04-04 Lucent Technologies Inc. Fractional sample timing error estimation for W-CDMA
US6275707B1 (en) * 1999-10-08 2001-08-14 Motorola, Inc. Method and apparatus for assigning location estimates from a first transceiver to a second transceiver
US6327300B1 (en) * 1999-10-25 2001-12-04 Motorola, Inc. Method and apparatus for dynamic spectrum allocation
US6349210B1 (en) * 1999-11-12 2002-02-19 Itt Manufacturing Enterprises, Inc. Method and apparatus for broadcasting messages in channel reservation communication systems
US6349091B1 (en) * 1999-11-12 2002-02-19 Itt Manufacturing Enterprises, Inc. Method and apparatus for controlling communication links between network nodes to reduce communication protocol overhead traffic
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7528774B2 (en) 2006-07-18 2009-05-05 Samsung Electronics Co., Ltd. Apparatus for measuring azimuth by using phase difference and method of using the same

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WO2003105495A2 (en) 2003-12-18
AU2003249674A8 (en) 2003-12-22
EP1510021A4 (en) 2006-09-20
EP1510021A2 (en) 2005-03-02
AU2003249674A1 (en) 2003-12-22
CA2484796A1 (en) 2003-12-18
JP4291265B2 (ja) 2009-07-08
US20030227895A1 (en) 2003-12-11
JP2005529562A (ja) 2005-09-29
US7054126B2 (en) 2006-05-30
WO2003105495A3 (en) 2004-02-26

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