Conflict avoiding method based on distributed cognitive database, and cognitive database

Abstract

The invention provides a conflict avoiding method based on a distributed cognitive database, and the cognitive database. The method includes: a first cognitive database receives a first request message sent by a system in which a first site is located, and modifying the occupation condition of a first shared resource as the pending state by the first site according to the first request message, wherein the first request message is used for applying the first shared resource by the first site; the first cognitive database obtains all adjacent sites of the first site; whether the adjacent sites are in a jurisdiction range of the first cognitive database is determined, and if not, the occupation condition of the first shared resource by the adjacent sites which are not in the jurisdiction range of the first cognitive database is obtained; and whether the first shared resource is distributed to the first site is determined according to the occupation condition of the first shared resource by the adjacent sites which are not in the jurisdiction range of the first cognitive database and the occupation condition of the first shared resource by the adjacent sites which are in the jurisdiction range of the first cognitive database. According to the method, the same shared resource can be prevented from being simultaneously allocated to the adjacent sites.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a conflict avoidance method based on a distributed cognitive database and a cognitive database. Background technique [0002] With the increasing bandwidth requirements of wireless communication services and the increasing types of wireless communication systems, limited wireless spectrum resources become more tense. In order to effectively alleviate the contradiction between the shortage of spectrum resources in communication systems and the increasing demand of wireless communication systems, a spectrum sharing technology is proposed to improve spectrum utilization. At present, the spectrum sharing technology scheme mainly includes two types. One is the spectrum sharing scheme based on licensed spectrum access. Spectrum sharing; the other is that cognitive systems do not distinguish between primary and secondary, and share idle spectrum resources through fair competitio...

AI Technical Summary

Problems solved by technology

[0006] When two sensing systems within the range of adjacent cognitive databases apply for the same sensing resources to the belonging cognitive database at the same time, at this time, the information obtained by the belonging cognitive database from the adjacent cognitive database is all frequency points not occupied , the two cognitive databases may authorize the same shared spectrum resource to the two sensing systems. If the two sensing systems are located within the isolation distance of each other, it may cause interference, which may prevent service transmission or cause business interruption

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