Mobile Access Definitions

  • G

    geostationary satellite

    A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east)...

  • GPS messaging (Global Positioning System messaging or mid-air messaging)

    GPS (Global Positioning System) messaging is a wireless messaging system for location-specific rather than recipient-specific messages.

  • GSM (Global System for Mobile communication)

    GSM (Global System for Mobile communication) is a digital mobile telephony system that is widely used in Europe and other parts of the world. GSM uses a variation of time division multiple access (TDMA) and is the most widely used of the three digital wireless telephony technologies....(Continued)

  • H

    helical antenna

    A helical antenna is a specialized antenna that emits and responds to electromagnetic fields with rotating (circular)polarization.

  • M

    mobile satellite services (MSS)

    Mobile satellite services (MSS) refers to networks of communications satellites intended for use with mobile and portable wireless telephones.

  • Mobitex

    Mobitex is a wireless network architecture that specifies a framework for the fixed equipment necessary to support all the wireless terminals in a packet-switched, radio-based communication system.

  • R

    roaming service

    Roaming service is the ability to get access to the Internet when away from home at the price of a local call or at a charge considerably less than the regular long-distance charges.

  • W

    wireless application service provider (WASP)

    WASP is also an acronym for the Web Standards Project.

  • wireless ISP (wireless Internet service provider or WISP)

    A wireless Internet service provider (WISP) is an Internet service provider (ISP) that allows subscribers to connect to a server at designated hot spots (access points) using a wireless connection such as Wi-Fi.

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