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Datagram message communication service employing a hybrid network

  • US 5,481,535 A
  • Filed: 06/29/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 06/29/1994
  • Status: Expired due to Fees
First Claim
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1. A method of transmitting information over a hybrid network having a plurality of transceivers, bridge transceivers and a wired network with wired nodes, each with a unique internal ID number, comprising the steps of:

  • a) obtaining message information desired to be transmitted;

    b) determining a destination identification number (ID) for a destination unit intended to receive information packet;

    c) looking up a NODE LOC code from a predetermined list of wired nodes identifying a wired node closest to the intended destination unit;

    d) creating a message packet having a message ID, the destination ID, the NODE LOC and the message information;

    e) providing the message packet to a bridge transceiver connected to the wired network;

    f) the bridge transceiver looking up the NODE LOC and routing the message packet to the node identified by NODE LOC through the wired network;

    g) the node at NODE LOC checking the destination ID with its own ID and if the IDs match, the message packet has been successfully transmitted to its intended destination unit, if the IDs do not match, broadcasting the message packet by radio signal to recipient transceivers;

    h) for each recipient transceiver receiving the broadcast;

    1. checking for errors in the received message packet, and sending an acknowledgment signal if received with no errors,2. identifying if the message is a valid message packet, a valid message packet being one which was received without errors, has not expired and has a message ID which does not match stored message IDs,3. comparing the destination ID to the internal ID of the recipient transceiver,4. storing and utilizing valid message packets for which the destination ID matches the internal ID of the recipient transceiver, and5. re-broadcasting the valid message packets to other recipient transceivers if the destination ID does not match the internal ID of the recipient transceiver.

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