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

A method for managing utilization of un-licensed frequency spectrum resources for secondary systems, comprising:

• assigning 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;
• determining 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, reconfiguring 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;
• receiving a request for an un-licensed frequency spectrum resource from a third secondary system;
• reassigning a second un-licensed frequency spectrum resource occupied by the second secondary system to the third secondary system;
• and
• reassigning 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 steps of assigning and reassigning the first un-licensed frequency spectrum resource are under protection of a primary system which is licensed with the un-licensed frequency spectrum resources.

A system, comprising:

• a memory;
• and
• processing circuitry configured to access the memory and
• determine a first un-licensed frequency spectrum resource assigned to the system in an availability time period, the first un-licensed frequency spectrum resource being available for wireless transmission of the system during the availability time period and under interference constraints;
• receive, in response to a determination that a second secondary system requires at least part of the assigned un-licensed frequency spectrum resource, a first spectrum adjustment information during the availability time period that indicates at least part of the first un-licensed frequency spectrum resource is no longer assigned to the system;
• change operational parameters of the system based on the first spectrum adjustment information, the operational parameters including available frequency and associated maximum transmit power;
• and
• receive, in response to a determination that a third secondary system requires an un-licensed frequency spectrum resource, a second spectrum adjustment information that reassigns a second un-licensed frequency spectrum resource occupied by the system to the third system and reassign the at least part of the first un-licensed frequency spectrum resource to the 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 system operates on the first un-licensed frequency spectrum resource under protection of a primary system which is licensed with the un-licensed frequency spectrum resources.

A method for a system, comprising:

• determining a first un-licensed frequency spectrum resource assigned to the system in an availability time period, the first un-licensed frequency spectrum resource being available for wireless transmission of the system during the availability time period and under interference constraints;
• receiving, in response to a determination that a second secondary system requires at least part of the assigned un-licensed frequency spectrum resource, a first spectrum adjustment information during the availability time period that indicates at least part of the first un-licensed frequency spectrum resource is no longer assigned to the system;
• changing operational parameters of the system based on the spectrum adjustment information, the operational parameters including available frequency and associated maximum transmit power;
• and
• receiving, in response to a determination that a third secondary system requires an un-licensed frequency spectrum resource, a second spectrum adjustment information that reassigns a second un-licensed frequency spectrum resource occupied by the system to the third system, and reassign the at least part of the first un-licensed frequency spectrum resource to the 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 system operates on the first un-licensed frequency spectrum resource under protection of a primary system which is licensed with the un-licensed frequency spectrum resources.

A non-transitory computer-readable medium including computer-readable instructions, which when executed by a system for managing utilization of un-licensed frequency spectrum resources for secondary systems, cause the system to:

• assign 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;
• 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 system assigns and reassigns the first un-licensed frequency spectrum resource under protection of a primary system which is licensed with the un-licensed frequency spectrum resources.