Mobile radio sets are installed on front and rear parts of a mobile body, one of fixed radio sets is set as a synchronization base station, and the other radio sets including the mobile radio sets are set as synchronization packet relay stations. Each of the relay stations in a synchronization acquiring mode makes a transition to a ground synchronization maintaining mode higher in synchronization accuracy when receiving a synchronization packet without the intervention of the mobile radio sets, or makes a transition to an on-vehicle synchronization maintaining mode lower in synchronization accuracy when receiving a synchronization packet with the intervention of the mobile radio sets, and the relay station in the on-vehicle synchronization maintaining mode makes a transition to the ground synchronization maintaining mode when receiving a synchronization packet from a relay station in the ground synchronization maintaining mode.


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    Titel :

    Wireless communication network system synchronization method


    Beteiligte:
    YAMAGUCHI TERUFUMI (Autor:in) / SAITO HIROKI (Autor:in) / OTSUKA YUHEI (Autor:in) / SHIRAI TOSHIHITO (Autor:in)

    Erscheinungsdatum :

    2016-04-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze / H04B TRANSMISSION , Übertragung / H04J Multiplex-Verkehr , MULTIPLEX COMMUNICATION



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