Three types of satellite aided mobile communications are considered for users in areas not served by (terrestrial) cellular radio systems. In system 1, mobile units are provided a direct satellite link to a gateway station, which serves as the interface to the terrestrial toll network. In system 2, a terrestrial radio link similar to those in cellular systems connects the mobile unit to a translator station; each translator relays the traffic from mobile units in its vicinity, via satellite, to the regional gateway. It is not feasible for system 2 to provide obiquitous coverage. Therefore, system 3 is introduced, in which the small percentage of users not within range of a translator are provided a direct satellite link as in system 1.


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    Titel :

    Requirements for a mobile communications satellite system. Volume 2: Technical report


    Beteiligte:
    Horstein, M. (Autor:in)

    Erscheinungsdatum :

    11.04.1983


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch