JP4637109B2 - 受信／発信同期によるグループ通話管理 - Google Patents

受信／発信同期によるグループ通話管理 Download PDF

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Publication number
JP4637109B2
JP4637109B2 JP2006534311A JP2006534311A JP4637109B2 JP 4637109 B2 JP4637109 B2 JP 4637109B2 JP 2006534311 A JP2006534311 A JP 2006534311A JP 2006534311 A JP2006534311 A JP 2006534311A JP 4637109 B2 JP4637109 B2 JP 4637109B2
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JP
Japan
Prior art keywords
group
synchronization
transceiver
transceivers
synchronization information
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 - Fee Related
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JP2006534311A
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English (en)
Japanese (ja)
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JP2007521764A (ja
JP2007521764A5 (enExample
Inventor
カワンド、シャーベル
リウ、ビン
ダブリュ． ミラー、ジアンピン
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Motorola Solutions Inc
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Motorola Inc
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Publication date
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Publication of JP2007521764A5 publication Critical patent/JP2007521764A5/ja
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Publication of JP4637109B2 publication Critical patent/JP4637109B2/ja
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    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
JP2006534311A 2003-10-09 2004-10-07 受信／発信同期によるグループ通話管理 Expired - Fee Related JP4637109B2 (ja)

Applications Claiming Priority (2)

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
PCT/US2004/033008 WO2005036801A2 (en) 2003-10-09 2004-10-07 Group call management through receive/transmit synchronization

Publications (3)

Publication Number Publication Date
JP2007521764A JP2007521764A (ja) 2007-08-02
JP2007521764A5 JP2007521764A5 (enExample) 2007-11-22
JP4637109B2 true JP4637109B2 (ja) 2011-02-23

Family

ID=34422610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006534311A Expired - Fee Related JP4637109B2 (ja) 2003-10-09 2004-10-07 受信／発信同期によるグループ通話管理

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)

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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

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US6134283A (en) * 1997-11-18 2000-10-17 Amati Communications Corporation Method and system for synchronizing time-division-duplexed transceivers
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Also Published As

Publication number Publication date
US7366532B2 (en) 2008-04-29
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
AU2004306745B2 (en) 2007-08-02
AU2004306745A1 (en) 2005-04-21
WO2005036801A3 (en) 2008-06-19
KR100886098B1 (ko) 2009-02-27
US20050079883A1 (en) 2005-04-14

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