SYSTEM AND METHOD FOR MANAGING UTILIZATION OF UN-LICENSED FREQUENCY SPECTRUM RESOURCES FOR SECONDARY SYSTEMS, AND A NON-TRANSITORY COMPUTER-READABLE MEDIUM

• US 20160088485A1
• Filed: 05/30/2014
• Published: 03/24/2016
• Est. Priority Date: 05/30/2013
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: GUO, Xin, SUN, Chen
• Granted Patent: US 10,455,428 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Abstract

A system and method for managing utilization of un-licensed frequency spectrum resources for secondary systems, a system and a method for the system, and a non-transitory computer-readable medium including computer-readable instructions. The system for managing utilization of un-licensed frequency spectrum resources for secondary systems includes: circuitry, configured to assign a first un-licensed frequency spectrum resource in an availability time period to a first secondary system and reassign at least part of the first un-licensed frequency spectrum resource during the availability time period based on current resource utilization, 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.

Claims

1. A system for managing utilization of un-licensed frequency spectrum resources for secondary systems, comprising

circuitry, configured to

assign a first un-licensed frequency spectrum resource in an availability time period to a first secondary system;

and

reassign at least part of the first un-licensed frequency spectrum resource during the availability time period based on current resource utilization,

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.

2. The system according to claim 1, wherein the circuitry is configured to reassign the at least part of the first un-licensed frequency spectrum resource during the availability time period to a second secondary system based on the current resource utilization by the first and the second secondary system.

3. The system according to claim 1, wherein the circuitry is configured to reconfigure operational parameters of the first secondary system to reassign the at least part of the first un-licensed frequency spectrum resource.

4. The system according to claim 3, wherein the operational parameters comprise available frequency and associated maximum transmit power, and the circuitry is configured to reconfigure frequency and/or transmit power of the first secondary system to reassign the at least part of the first un-licensed frequency spectrum resource.

5. The system according to claim 1, wherein the circuitry is further configured to determine the current resource utilization of the first un-licensed frequency spectrum resource by the first secondary system, reassign the at least part of the first un-licensed frequency spectrum resource in case that the at least part of the first un-licensed frequency spectrum resource is unused by the first secondary system.

6. The system according to claim 1, wherein the circuitry assigns available frequency and associated maximum transmit power to the first secondary system as the first un-licensed frequency spectrum resource without intolerable interference to the primary system.

7. The system according to claim 5, wherein the at least part of the first un-licensed frequency spectrum resource is released by the first secondary system before the availability time period expires.

8. The system according to claim 2, wherein the circuitry is further configured to control interference to other secondary systems when reassign the at least part of first un-licensed frequency spectrum resource to the second secondary system.

9. The system according to claim 1, wherein the circuitry is configured to transmit, to the first secondary system, spectrum adjustment information that indicates the at least part of the first un-licensed frequency spectrum resource no longer available to the first secondary system.

10. The system according to claim 9, wherein the spectrum adjustment information comprises identity information of the first secondary system, the at least part of the first un-licensed frequency spectrum resource unavailable to the first secondary system and/or a second un-licensed frequency spectrum resource assigned to the first secondary system.

11. The system according to claim 2, wherein the circuitry is configured to reassign the first un-licensed frequency spectrum resource to the second secondary system based on location of the second secondary system.

12. The system according to claim 11, wherein the circuitry is configured to identify before assigning the at least part of the first un-licensed frequency spectrum resources to the second secondary system, based on the location, that the at least part of the first un-licensed frequency spectrum resource is available to the second secondary system, the at least part of the first un-licensed frequency spectrum resource is available to the second secondary system when utilization of the at least part of the first un-licensed frequency spectrum resource by the second secondary system at the location causes interference under tolerance of the primary system.

13. The system according to claim 12, wherein the circuitry is configured to determine available frequency spectrum resource of the second secondary system, and identify the at least part of first un-licensed frequency spectrum resource available to the second secondary system if the at least part of first un-licensed frequency spectrum resource is comprised in the available frequency spectrum resource, the available frequency spectrum resource comprises frequencies and associated maximum transmit power calculated based on the location, which can be used by the second secondary system under protection of the primary system.

14. The system according to claim 12, wherein the at least part of the first un-licensed frequency spectrum resource is available to the second secondary system when utilization of the at least part of the first un-licensed frequency spectrum resource by the second secondary system at the location causes interference under tolerance of the primary system and other secondary systems.

15. The system according to claim 11, wherein the circuitry is configured to receive request for un-licensed frequency spectrum resource from the second secondary system, and determine the second secondary system as object to reassign the at least part of the first un-licensed frequency spectrum resource to.

16. The system according to claim 11, wherein the circuitry is configured to receive request for 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 can'"'"'t be reassigned to the third secondary system for causing intolerable interference to other systems.

17. 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; and

reassigning at least part of the first un-licensed frequency spectrum resource during the availability time period based on current resource utilization,

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.

18. A system, comprising:

circuitry, configured to

determine a first un-licensed frequency spectrum resource available to the system in an availability time period;

receive a spectrum adjustment information during the availability time period that indicates at least part of the first un-licensed frequency spectrum resource no longer available to the system; and

change operational parameters of the system based on the spectrum adjustment information,

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.

19. A method for a system, comprising

determining a first un-licensed frequency spectrum resource available to the system in an availability time period;

receiving a spectrum adjustment information during the availability time period that indicates at least part of the first un-licensed frequency spectrum resource no longer available to the system; and

changing operational parameters of the system based on the spectrum adjustment information,

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.

20. 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; and

reassign at least part of the first un-licensed frequency spectrum resource during the availability time period based on current resource utilization,

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.