Spectrum resource management device and method

Patent metadata

Field	Value
Publication number	US-9961557-B2
Application number	US-201515305283-A
Country	US
Kind code	B2
Filing date	May 27, 2015
Priority date	May 29, 2014
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A spectrum resource management device: determines available spectrum resources of a target communication system, so that aggregation interference caused by the target communication system and a communication system with a low right against a communication system with a high right in a management area does not exceed an interference threshold of the communication system with a high right; reduces available spectrum resources of the communication system with a low right, so that the interference caused by the communication system with a low right against the target communication system does not exceed an interference threshold of the target communication system; and updates the available spectrum resources of the target communication system according to the reduced available spectrum resources of the communication system with a low right, so that the aggregation interference does not exceed the interference threshold of the communication system with a high right.

First claim

The invention claimed is:

1. A spectrum resource management device, applied to a management region comprising a target communication system, a communication system with higher authority and a communication system with lower authority, wherein the communication system with higher authority has a higher spectrum use authority than the target communication system and the communication system with lower authority has a lower spectrum use authority than the target communication system, and the spectrum resource management device comprises:
circuitry configured to
determine available spectrum resources of the target communication system, so that when the target communication system operates in a range of the available spectrum resources and the communication system with lower authority operates in a range of available spectrum resources of the communication system with lower authority, aggregation interference on the communication system with higher authority caused by the target communication system and the communication system with lower authority is lower than an interference threshold of the communication system with higher authority,
reduce the available spectrum resources of the communication system with lower authority, so that when the communication system with lower authority operates in a range of the reduced available spectrum resources, interference on the target communication system caused by the communication system with lower authority is lower than an interference threshold of the target communication system, and
update the available spectrum resources of the target communication system according to the reduced available spectrum resources of the communication system with lower authority, so that when the target communication system operates in a range of the updated available spectrum resources and the communication system with lower authority operates in the range of the reduced available spectrum resources, the aggregation interference is lower than the interference threshold of the communication system with higher authority.

2. The device according to claim 1 , wherein
circuitry is further configured to
reduce the available spectrum resources of the communication system with lower authority in a case that the updated available spectrum resources of the target communication system are less than necessary spectrum resources for the target communication system, and
update, in a case that the updated available spectrum resources of the target communication system are less than the necessary spectrum resources for the target communication system, the available spectrum resources of the target communication system according to the currently reduced available spectrum resources of the communication system with lower authority, so that when the target communication system operates in a range of the currently updated available spectrum resources and the communication system with lower authority operates in a range of the currently reduced available spectrum resources, the aggregation interference does not exceed the interference threshold of the communication system with higher authority,
until the currently updated available spectrum resources of the target communication system are equal to or more than the necessary spectrum resources for the target communication system.

3. The device according to claim 2 , wherein the circuitry is further configured to
reduce, in a case that the currently updated available spectrum resources are still less than the necessary spectrum resources for the target communication system, interference on the target communication system caused by other communication system with same authority within the management region, wherein the communication system with same authority has the same spectrum use authority as the target communication system, and
recalculate the necessary spectrum resources for the target communication system according to interference on the target communication system caused by the communication system with higher authority and the communication system with same authority and Quality of Service requirements of the target communication system.

4. The device according to claim 3 , wherein
circuitry is further configured to calculate the necessary spectrum resources for the target communication system according to interference on the target communication system caused by all communication systems with higher authority and communication systems with same authority within the management region and a management region of other spectrum resource management device in communication with the spectrum resource management device and the Quality of Service requirements of the target communication system.

5. The device according to claim 1 , wherein
the circuitry is further configured to
determine, before the available spectrum resources of the communication system with lower authority are reduced, maximum available spectrum resources of the target communication system in a case that the communication system with lower authority does not interfere with the communication system with higher authority,
reduce, in a case that the maximum available spectrum resources of the target communication system are less than necessary spectrum resources for the target communication system, interference on the target communication system caused by a communication system with same authority within the management region, wherein the communication system with same authority has the same spectrum use authority as the target communication system, and
recalculate the necessary spectrum resources for the target communication system according to interference on the target communication system caused by the communication system with higher authority and the communication system with same authority and Quality of Service requirements of the target communication system.

6. The device according to claim 1 , wherein
circuitry is further configured to stop a communication system with lower authority within the management region, which operates in an exclusive service region of the target communication system.

7. The device according to claim 1 , wherein the circuitry is further configured to perform at least one of:
receiving a spectrum utilization request of the target communication system, wherein the spectrum utilization request comprises the interference threshold, necessary spectrum resources and/or position information of the target communication system;
sending the interference threshold, the necessary spectrum resources and/or the position information of the target communication system to other spectrum resource management device;
receiving, from the other spectrum resource management device, current available spectrum resources of the target communication system with respect to the other spectrum resource management device and a maximum increment with respect to the current available spectrum resources of the target communication system obtained by reducing available spectrum resources of a communication system with lower authority managed by the other spectrum resource management device;
receiving, from the other spectrum resource management device, information of corresponding interference on the target communication system caused by a communication system with higher authority and a communication system with same authority managed by the other resource management device;
sending a spectrum utilization adjustment request to the other spectrum resource management device involved in spectrum utilization adjustment;
receiving, from the other spectrum resource management device involved in the spectrum utilization adjustment, updated current available spectrum resources of the target communication system;
sending an interference adjustment reques

Assignees

• Sony Corp

Inventors

• Sun Chen
• Guo Xin

Classifications

• H04W16/10 Primary

  Dynamic resource partitioning · CPC title

• H04W16/14 Primary

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W72/044

  based on the type of the allocated resource · CPC title