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System and method for allocating frequency channels in a two-way messaging network

  • US 5,903,842 A
  • Filed: 06/24/1998
  • Issued: 05/11/1999
  • Est. Priority Date: 07/14/1995
  • Status: Expired due to Fees
First Claim
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1. In a radio frequency communication network having a plurality of transmitter and receiver units for communication with a portable two-way selective call communication device, a method for allocating a plurality of frequency channels to a plurality of said transmitter units for which there is a demand that the transmitter units transmit messages comprising:

  • grouping said plurality of transmitter units in a plurality of zones, each zone including one or more transmitter units for simulcasting messages, wherein said grouping step further includes;

    determining whether a first zone has a demand for the transmission of messages by the transmitter units in the zone that is greater than a predetermined demand threshold; and

    determining whether the first zone is dividable if said first zone has a demand that is greater than said demand threshold; and

    splitting said first zone into a second and a third zone if said first zone is determined to be dividable, said second and third zones not being correlated;

    determining which of said zones if any are correlated;

    determining whether a channel proposed for assignment to a given zone is currently assigned to another zone that is correlated with said given zone; and

    assigning said proposed channel to said given zone if said proposed channel is not currently assigned to another zone that is correlated with said given zone.

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