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Trunking system communication resource reuse method

  • US 5,040,238 A
  • Filed: 06/29/1990
  • Issued: 08/13/1991
  • Est. Priority Date: 06/29/1990
  • Status: Expired due to Term
First Claim
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1. In a large-cell trunked radio system providing radio communications to first subscriber units throughout a large geographic region, said large-cell trunked system having a resource controller for said large cell, a predetermined number of communication resources allocable to subscriber units within said large region by said resource controller using a control resource, where said large-cell trunked radio system includes a plurality of small-cell trunked systems each of which provides trunked radio communications to second subscriber units located within small geographic regions within said large region and where each said small-cell system has a small-cell system resource controller that allocates communication resources to subscriber units within said small-cell using at least one communication resource as a small-cell control resource, a method of coordinating use of a re-useable communication resources between small-cell trunked systems, such that re-use of communication resources by said small-cell trunked systems is compatible with the use of communication resources by said large-cell trunked system and with other small-cell trunked systems, said method comprised of the steps of:

  • a) providing a list of communication resources to said small-cell resource controllers;

    b) within a fist small cell region, testing said communication resources for useable communication signals, including at least useable control resource signals from other small-cell resource controllers;

    c) testing useable control resource signals from other small-cell controllers for the identity of communication resources claimed by a small-cell resource controller for use within the corresponding small cell;

    d) identifying and claiming an unclaimed and unused communication resource as a control resource for said first small-cell controller; and

    e) using said claimed control resource for said first small cell, said first small-cell controller broadcasting a list of the identity of at least a subset of said communication resources unclaimed and unused as communication resources claimed by the corresponding first small cell.

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