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Digital Cellular Overlay Network (DCON)

  • US 5,404,392 A
  • Filed: 06/12/1991
  • Issued: 04/04/1995
  • Est. Priority Date: 06/12/1991
  • Status: Expired due to Term
First Claim
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1. A method for performing Cellular Data Networking (CDN) in an Advanced Mobile Telephone System (AMPS), wherein said AMPS includes a set of cellular telephone voice transceivers, each tuned to one of a preselected set of communication channels, and means for coupling each transceiver in said set of transceivers to an antenna to facilitate the performance of duplex radio communications over said set of channels, including at least one data transceiver, and a set of sensors coupled to each transceiver in said set of transceivers, comprising the steps of:

  • (a) determining when there is unused air time to switch a given one of said at least one data transceiver onto the channel to which a particular one of the transceivers in said set of transceivers is tuned;

    (b) determining when to turn said given data transceiver off based on sensing a demand for the channel to which the given data transceiver is tuned by said particular transceiver;

    (c) identifying time slots that are unused by said AMPS on each of said channels; and

    (d) assigning selected unused time slots identified in step (c) for data transmission purposes.

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