AU2004306745B2 - Group call management through receive/transmit synchronization - Google Patents

Group call management through receive/transmit synchronization Download PDF

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Publication number
AU2004306745B2
AU2004306745B2 AU2004306745A AU2004306745A AU2004306745B2 AU 2004306745 B2 AU2004306745 B2 AU 2004306745B2 AU 2004306745 A AU2004306745 A AU 2004306745A AU 2004306745 A AU2004306745 A AU 2004306745A AU 2004306745 B2 AU2004306745 B2 AU 2004306745B2
Authority
AU
Australia
Prior art keywords
group
transceiver
synchronization
transceivers
transmitting
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.)
Ceased
Application number
AU2004306745A
Other languages
English (en)
Other versions
AU2004306745A1 (en
Inventor
Charbel Khawand
Bin Liu
Jianping W. Miller
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.)
Motorola Mobility LLC
Original Assignee
Motorola Mobility LLC
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 Motorola Mobility LLC filed Critical Motorola Mobility LLC
Publication of AU2004306745A1 publication Critical patent/AU2004306745A1/en
Application granted granted Critical
Publication of AU2004306745B2 publication Critical patent/AU2004306745B2/en
Assigned to MOTOROLA MOBILITY INC. reassignment MOTOROLA MOBILITY INC. Request for Assignment Assignors: MOTOROLA, INC.
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2687—Inter base stations synchronisation
    • H04B7/269—Master/slave synchronisation
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
AU2004306745A 2003-10-09 2004-10-07 Group call management through receive/transmit synchronization Ceased AU2004306745B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/682,772 US7366532B2 (en) 2003-10-09 2003-10-09 Group call management through receive/transmit synchronization
US10/682,772 2003-10-09
PCT/US2004/033008 WO2005036801A2 (en) 2003-10-09 2004-10-07 Group call management through receive/transmit synchronization

Publications (2)

Publication Number Publication Date
AU2004306745A1 AU2004306745A1 (en) 2005-04-21
AU2004306745B2 true AU2004306745B2 (en) 2007-08-02

Family

ID=34422610

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2004306745A Ceased AU2004306745B2 (en) 2003-10-09 2004-10-07 Group call management through receive/transmit synchronization

Country Status (7)

Country Link
US (1) US7366532B2 (enExample)
EP (1) EP1673894A4 (enExample)
JP (1) JP4637109B2 (enExample)
KR (1) KR100886098B1 (enExample)
CN (1) CN101313499B (enExample)
AU (1) AU2004306745B2 (enExample)
WO (1) WO2005036801A2 (enExample)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7814188B2 (en) * 2003-12-16 2010-10-12 Honeywell International Inc. Synchronized wireless communications system
JP4335090B2 (ja) * 2004-05-14 2009-09-30 シャープ株式会社 移動端末装置
US7223612B2 (en) * 2004-07-26 2007-05-29 Infineon Technologies Ag Alignment of MTJ stack to conductive lines in the absence of topography
US8036244B2 (en) * 2004-08-06 2011-10-11 Sharp Kabushiki Kaisha Transmitter, receiver, communication system, communication method, non-transitory computer readable medium
US8291273B2 (en) * 2005-01-28 2012-10-16 Sharp Kabushiki Kaisha Communication device, non-transitory computer-readable medium storing a communication program
US7787391B2 (en) * 2005-01-28 2010-08-31 Sharp Kabushiki Kaisha Communication device, communication system, communication method, communication program, and communication circuit
US8284684B2 (en) * 2005-01-28 2012-10-09 Sharp Kabushiki Kaisha Communication device, communication system, communication method, and communication circuit
US8051182B2 (en) * 2005-01-28 2011-11-01 Sharp Kabushiki Kaisha Communication device, communication system, communication method, communication program, and communication circuit
US8111680B2 (en) * 2005-04-07 2012-02-07 Mitsubishi Electric Corporation Mobile object information sharing system
US20060251107A1 (en) * 2005-04-21 2006-11-09 Geren Bruce E Method and system for collision avoidance in wireless communications
GB2445336B (en) * 2005-11-04 2010-12-08 Nec Corp Wireless communication system and method of controlling a transmission power
WO2007055326A1 (ja) * 2005-11-10 2007-05-18 Sharp Kabushiki Kaisha データ送信装置およびその制御方法、データ受信装置およびその制御方法、データ送信システム、データ送信装置制御プログラム、データ受信装置制御プログラム、ならびに該プログラムを記録した記録媒体
WO2008011717A1 (en) * 2006-07-28 2008-01-31 Nortel Networks Limited Multi-hop network topology system and method
JP4219950B2 (ja) * 2006-10-16 2009-02-04 シャープ株式会社 通信機器、通信方法、通信回路、携帯電話機、プログラム、およびプログラムを記録したコンピュータ読み取り可能な記録媒体
US7990944B2 (en) * 2007-09-06 2011-08-02 Wi-Lan, Inc. Contention-based communication
US9326135B2 (en) * 2008-02-21 2016-04-26 Google Technology Holdings LLC Method and apparatus for secure communication in a digital two way radio protocol
US8687619B2 (en) * 2008-11-04 2014-04-01 Telefonaktiebolaget Lm Ericsson (Publ) System and method of downlinking data to an unsynchronized user equipment in a telecommunications network
EP2429105B1 (en) 2010-09-13 2013-03-27 Ntt Docomo, Inc. Node in a wireless system with time and clock frequency synchronizing and corresponding method
US9516615B2 (en) 2011-11-18 2016-12-06 Apple Inc. Selection of synchronization stations in a peer-to-peer network environment
US20130132500A1 (en) 2011-11-18 2013-05-23 Apple Inc. Selection of a master in a peer-to-peer network environment
US10271293B2 (en) * 2011-11-18 2019-04-23 Apple Inc. Group formation within a synchronized hierarchy of peer-to-peer devices
TWI533732B (zh) * 2012-01-13 2016-05-11 蘋果公司 在點對點網路環境中的裝置同步
TWI571166B (zh) * 2012-01-13 2017-02-11 蘋果公司 在點對點網路環境中同步站台之選擇
CN102572722B (zh) * 2012-01-19 2015-07-15 大唐移动通信设备有限公司 一种基于集群用户的消息传输方法和设备
US9651672B2 (en) * 2012-09-25 2017-05-16 Intel Corporation Systems and methods for time synchronization
US10003642B2 (en) * 2013-06-28 2018-06-19 Apple Inc. Operating a cluster of peer-to-peer devices
CN105792192B (zh) * 2016-02-25 2017-08-15 深圳普创天信科技发展有限公司 无线通信方法及系统
WO2020024199A1 (en) * 2018-08-02 2020-02-06 Texas Instruments Incorporated High speed flexled digital interface
FI129428B (en) 2019-09-18 2022-02-15 Wirepas Oy A decentralized synchronization solution for wireless communication networks

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5130987A (en) * 1990-03-23 1992-07-14 Metricom, Inc. Method for synchronizing a wide area network without global synchronizing
US6366572B1 (en) * 1999-02-04 2002-04-02 Senora Trading Company Wireless communication system with symmetric communication protocol

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086507A (en) * 1989-05-25 1992-02-04 Ericsson Ge Mobile Communications Inc. Drop channel pre-alert for trunked radio communication system
US5699353A (en) * 1993-11-24 1997-12-16 Ericsson Ge Mobile Communications, Inc. Extended trunked RF communications systems networking
US5488631A (en) * 1994-10-31 1996-01-30 Radio Connect Corporation Wireless direct-sequence spread spectrum TDMA communications system
FI97582C (fi) * 1995-03-03 1997-01-10 Nokia Telecommunications Oy Matkaviestimen lähetyksen tahdistaminen
JP3242283B2 (ja) * 1995-04-26 2001-12-25 株式会社日立製作所 無線通信システムおよび移動無線端末装置
FI101116B (fi) * 1995-08-14 1998-04-15 Nokia Telecommunications Oy Tietoliikenneyhteyden tahdistaminen matkaviestinjärjestelmässä
US5960362A (en) * 1996-06-24 1999-09-28 Qualcomm Incorporated Method and apparatus for access regulation and system protection of a dispatch system
BR9710990A (pt) * 1996-06-24 2000-10-31 Qualcomm Inc Método e aparelho para acesso eficaz de sistema em um sistema de despacho
JPH10209956A (ja) * 1997-01-28 1998-08-07 Nippon Telegr & Teleph Corp <Ntt> 無線パケット通信方法
US6134283A (en) * 1997-11-18 2000-10-17 Amati Communications Corporation Method and system for synchronizing time-division-duplexed transceivers
ATE319272T1 (de) * 1998-07-28 2006-03-15 Canon Kk Verfahren and vorrichtung zur nachrichtenübertragung in einem netzwerk
JP2000078643A (ja) * 1998-08-31 2000-03-14 Kyocera Corp 無線フレ−ム同期方式
AU5920000A (en) * 1999-07-09 2001-02-13 Malibu Networks, Inc. Method for transmission control protocol (tcp) rate control with link-layer acknowledgements in a wireless point to multi-point (ptmp) transmission system
CA2363927C (en) * 2000-11-28 2004-07-06 Research In Motion Limited Synchronization signal detector and method
EP1397923B1 (en) 2001-05-11 2005-04-20 Nokia Corporation Mobile instant messaging and presence service
DE10126420A1 (de) * 2001-05-31 2002-12-05 Philips Corp Intellectual Pty Verfahren zum Synchronisieren einer Mobilstation mit einer Feststation
US7016962B2 (en) 2001-08-31 2006-03-21 Hewlett-Packard Development Company, L.P. System and method for creating a user interface between an applications and network services
US20030065728A1 (en) * 2001-09-28 2003-04-03 Rajko Milovanovic Filing and retrieval of e-mail into person associated folders
FI113732B (fi) 2001-09-28 2004-05-31 Nokia Corp Käyttäjäryhmän hallinnointi kommunikaatiojärjestelmässä

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5130987A (en) * 1990-03-23 1992-07-14 Metricom, Inc. Method for synchronizing a wide area network without global synchronizing
US6366572B1 (en) * 1999-02-04 2002-04-02 Senora Trading Company Wireless communication system with symmetric communication protocol

Also Published As

Publication number Publication date
US7366532B2 (en) 2008-04-29
JP4637109B2 (ja) 2011-02-23
EP1673894A2 (en) 2006-06-28
CN101313499A (zh) 2008-11-26
CN101313499B (zh) 2011-03-16
JP2007521764A (ja) 2007-08-02
EP1673894A4 (en) 2011-08-03
WO2005036801A2 (en) 2005-04-21
KR20060085673A (ko) 2006-07-27
AU2004306745A1 (en) 2005-04-21
WO2005036801A3 (en) 2008-06-19
KR100886098B1 (ko) 2009-02-27
US20050079883A1 (en) 2005-04-14

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
PC Assignment registered

Owner name: MOTOROLA MOBILITY INC.

Free format text: FORMER OWNER WAS: MOTOROLA, INC.

MK14 Patent ceased section 143(a) (annual fees not paid) or expired