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System and method for managing utilization of un-licensed frequency spectrum resources for secondary systems, and a non-transitory computer-readable medium

  • US 10,455,428 B2
  • Filed: 05/30/2014
  • Issued: 10/22/2019
  • Est. Priority Date: 05/30/2013
  • Status: Active Grant
First Claim
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1. A system for managing utilization of un-licensed frequency spectrum resources for secondary systems, comprising:

  • a memory; and

    processing circuitry configured to access the memory andassign a first un-licensed frequency spectrum resource in an availability time period to a first secondary system, the first un-licensed frequency spectrum resource being available for wireless transmission of the first secondary system during the availability time period and under interference constraints;

    determine whether one or more other secondary systems require at least part of the assigned first un-licensed frequency spectrum resource;

    in response to a determination that the one or more other secondary systems require the at least part of the first un-licensed frequency spectrum resource, reconfigure operational parameters of the first secondary system to reassign the at least part of the first un-licensed frequency spectrum resource to a second secondary system during the availability time period based on current resource utilization, the operational parameters include available frequency and associated maximum transmit power; and

    receive a request for an un-licensed frequency spectrum resource from a third secondary system, reassign a second un-licensed frequency spectrum resource occupied by the second secondary system to the third secondary system, and reassign the at least part of the first un-licensed frequency spectrum resource to the second secondary system if the at least part of the first un-licensed frequency spectrum resource cannot be reassigned to the third secondary system for causing intolerable interference to other systems,wherein the circuitry is configured to assign and reassign the first un-licensed frequency spectrum resource under protection of a primary system which is licensed with the un-licensed frequency spectrum resources.

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