IN2014DN03364A - - Google Patents

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Publication number
IN2014DN03364A
IN2014DN03364A IN3364DEN2014A IN2014DN03364A IN 2014DN03364 A IN2014DN03364 A IN 2014DN03364A IN 3364DEN2014 A IN3364DEN2014 A IN 3364DEN2014A IN 2014DN03364 A IN2014DN03364 A IN 2014DN03364A
Authority
IN
India
Prior art keywords
synchronization
radio devices
relay station
packet
mobile radio
Prior art date
Application number
Inventor
Terufumi Yamaguchi
Hiroki Saito
Yuhei Otsuka
Toshihito Shirai
Original Assignee
Nippon Signal Co Ltd
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 Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Publication of IN2014DN03364A publication Critical patent/IN2014DN03364A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0018—Communication with or on the vehicle or train
    • B61L15/0027—Radio-based, e.g. using GSM-R
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/70—Details of trackside communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/026—Co-operative diversity, e.g. using fixed or mobile stations as relays
    • 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
    • H04W56/001—Synchronization between nodes
    • H04W56/0025—Synchronization between nodes synchronizing potentially movable access points

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Mobile radio devices are disposed at the front and rear ends of a mobile body in such a manner that the mobile radio devices can communicate. At least one of fixed radio devices is used as a synchronization base station. The other radio devices including the mobile radio devices are used as synchronization packet relay stations. Each relay station when powered up transitions to a synchronization acquiring mode in which a reception of a synchronization packet is awaited. When having received the synchronization packet without intervention of the mobile radio devices each relay station transitions to an on ground synchronization maintaining mode which indicates a high level of synchronization precision and becomes able to transmit the synchronization packet. When having received the synchronization packet with the intervention of the mobile radio devices each relay station transitions to an on vehicle synchronization maintaining mode which indicates a lower level of synchronization precision than the on ground synchronization maintaining mode and becomes able to transmit the synchronization packet. When having received the synchronization packet from another relay station that is in the on ground synchronization maintaining mode each relay station that is in the on vehicle synchronization maintaining mode transitions to the on ground synchronization maintaining mode.
IN3364DEN2014 2011-09-30 2012-09-24 IN2014DN03364A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011218180A JP5922902B2 (en) 2011-09-30 2011-09-30 Method for synchronizing wireless communication network system
PCT/JP2012/074420 WO2013047450A1 (en) 2011-09-30 2012-09-24 Wireless communication network system synchronization method

Publications (1)

Publication Number Publication Date
IN2014DN03364A true IN2014DN03364A (en) 2015-06-05

Family

ID=47995483

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3364DEN2014 IN2014DN03364A (en) 2011-09-30 2012-09-24

Country Status (10)

Country Link
US (1) US9319163B2 (en)
EP (1) EP2763474B1 (en)
JP (1) JP5922902B2 (en)
KR (1) KR101868996B1 (en)
CN (1) CN103843426B (en)
BR (1) BR112014007108A2 (en)
CA (1) CA2850320C (en)
IN (1) IN2014DN03364A (en)
MY (1) MY170397A (en)
WO (1) WO2013047450A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5814043B2 (en) 2011-08-15 2015-11-17 日本信号株式会社 Wireless communication network system
UA116025C2 (en) 2013-07-04 2018-01-25 Нек Корпорейшн SYSTEM, METHOD AND DEVICE OF COMMUNICATION
EP3113560B1 (en) * 2014-03-21 2022-04-20 Huawei Technologies Co., Ltd. Apparatus for configuring position of frequency resource
WO2016119890A1 (en) * 2015-01-30 2016-08-04 Telefonaktiebolaget Lm Ericsson (Publ) Configuring wireless communications resources
EP3395105A4 (en) * 2015-12-30 2019-08-07 Ruckus Wireless, Inc. Synchronizing indoor radio nodes
JP6532609B2 (en) * 2016-08-04 2019-06-19 三菱電機株式会社 Wireless train control system and wireless train control method
JP6733936B2 (en) * 2016-10-18 2020-08-05 住友電工システムソリューション株式会社 Roadside communication device, synchronization method, and computer program
CN110901691B (en) * 2018-09-17 2021-10-29 株洲中车时代电气股份有限公司 Ferroelectric data synchronization system and method and train network control system
CN109367586B (en) * 2018-10-19 2023-10-17 卡斯柯信号有限公司 Clock synchronization system and method for urban rail transit signal system
US11581632B1 (en) 2019-11-01 2023-02-14 Northrop Grumman Systems Corporation Flexline wrap antenna for projectile

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US5420883A (en) * 1993-05-17 1995-05-30 Hughes Aircraft Company Train location and control using spread spectrum radio communications
JP2000102063A (en) * 1998-09-25 2000-04-07 Nippon Signal Co Ltd:The Synchronization method for radio communication network
JP4707212B2 (en) * 2000-06-29 2011-06-22 日本信号株式会社 Wireless communication network system
US7904085B2 (en) * 2004-02-23 2011-03-08 Nec Corporation Mobile device and radio interface arrangement method
WO2006004103A1 (en) * 2004-07-06 2006-01-12 Matsushita Electric Industrial Co., Ltd. Radio communication system
US20060245390A1 (en) * 2005-04-28 2006-11-02 Yukihiro Omoto Base station and mobile station constituting mobile communication system
ES2302438B1 (en) * 2006-07-10 2009-05-21 Universitat Politecnica De Catalunya SYSTEM AND PROCEDURE TO ROUTE A DATA PACKAGE IN A WIRELESS NETWORK, COMPUTER SYSTEM IN A SYSTEM TO ROUTE A DATA PACKAGE IN A WIRELESS NETWORK, AND PROCEDURE TO ROUTE A DATA PACKAGE IN A COMPUTER SYSTEM.
JP2008062874A (en) * 2006-09-11 2008-03-21 Nippon Signal Co Ltd:The Train position detector
CN102113362B (en) * 2007-01-12 2014-06-18 黑莓有限公司 Mobile relay system for supporting communications between a fixed station and mobile terminals
CN101682900B (en) * 2007-06-01 2013-05-29 松下电器产业株式会社 Communication system, wireless communication terminal device, position estimation device, communication relay device and connecting station
JP2009194855A (en) * 2008-02-18 2009-08-27 Hitachi Kokusai Electric Inc Train radio system
JP2009225135A (en) * 2008-03-17 2009-10-01 Hitachi Ltd Method for selecting frequency channel in train radio communication system and on-board radio terminal
JP5228684B2 (en) * 2008-08-07 2013-07-03 富士通株式会社 Communication terminal, base station, communication method for communication terminal, communication method for base station, communication system
JP2010171509A (en) * 2009-01-20 2010-08-05 Sumitomo Electric Ind Ltd Roadside communication apparatus
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JP5814043B2 (en) * 2011-08-15 2015-11-17 日本信号株式会社 Wireless communication network system

Also Published As

Publication number Publication date
CN103843426B (en) 2018-05-11
CA2850320A1 (en) 2013-04-04
KR101868996B1 (en) 2018-06-20
EP2763474B1 (en) 2018-07-25
KR20140086996A (en) 2014-07-08
US20140211782A1 (en) 2014-07-31
BR112014007108A2 (en) 2017-06-13
JP2013078073A (en) 2013-04-25
WO2013047450A1 (en) 2013-04-04
EP2763474A4 (en) 2015-06-03
CN103843426A (en) 2014-06-04
MY170397A (en) 2019-07-27
CA2850320C (en) 2018-05-22
US9319163B2 (en) 2016-04-19
JP5922902B2 (en) 2016-05-24
EP2763474A1 (en) 2014-08-06

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