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Cellular packet data arrangement

  • US 5,711,008 A
  • Filed: 03/01/1995
  • Issued: 01/20/1998
  • Est. Priority Date: 03/01/1995
  • Status: Expired due to Term
First Claim
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1. A cellular packet data arrangement comprising:

  • a plurality of radio transceivers for providing communications in geographical cells with mobile terminals each having a respective identifier (TEI);

    an interface unit (NIU) for providing an interface to a packet data network; and

    at least two link interface units (LIUs) each for providing a plurality of channels each for communicating data packets between the NIU and a respective one of the radio transceivers, each LIU storing the TEI of each mobile terminal having communications being handled by the LIU, an indication of the channel for such communications, and protocol data for the communications;

    wherein the NIU and the LIUs are arranged so that, in response to communications being received on a channel of a first LIU from a mobile terminal whose TEI is not stored in the first LIU and whose protocol data is stored in another, second, LIU;

    the protocol data for the mobile terminal is transferred from the second LIU to the first LIU;

    the TEI of the mobile terminal is stored in the first LIU with an indication of the channel of the fast LIU on which the communications from the mobile terminal are received; and

    the stored TEI of the mobile terminal is deleted from the second LIU.

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