Radio communication terminal for optimizing transmission of messages to selective call transceivers and method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 28, 2003
Grant Date -
May 16, 2002
app pub date -
Feb 3, 1999
filing date -
Feb 3, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A radio communication terminal operating under a frequency reuse plan for communicating to and from a SCT (116) located in any one of a plurality of communication zones (118) corresponding to the frequency reuse plan, includes: a processing system (412), and a radio transceiver (114) coupled thereto. The processing system is programmed to: (202) cause the radio transceiver to receive a registration request when transmitted from the SCT as the SCT enters a new communication zone, (204) track a history of the SCT's whereabouts according to each registration request received from the SCT, (206) receive a message intended for the SCT, (208) cause the radio transceiver to transmit the message to the SCT, and (210) cause the radio transceiver to wait a predetermined time to receive an acknowledgement message from the SCT indicating that the message was received. If the acknowledgement message is not received, the processing system is programmed to: (212, 214) determine from the history of the SCT's whereabouts, one or more most probable communication zones where the SCT may be located, and (216) cause the radio transceiver to re-transmit the message to the SCT at the one or more most probable communication zones.
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