Method and system for spectrum allocation in cognitive radio network

A cognitive radio and cognitive system technology, applied in wireless communication, network planning, electrical components, etc., can solve problems such as the unsatisfactory overall spectrum utilization effect of the radio network, and achieve the effect of improving the overall spectrum utilization effect

Active Publication Date: 2012-07-18
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these solutions are mainly aimed at improving system throughput or avoiding interference, and the overall spectrum utilization effect of cognitive radio networks is not ideal

Method used

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  • Method and system for spectrum allocation in cognitive radio network
  • Method and system for spectrum allocation in cognitive radio network
  • Method and system for spectrum allocation in cognitive radio network

Examples

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Embodiment Construction

[0025] figure 1 It is a flowchart of a spectrum allocation method in a cognitive radio network provided by the present invention.

[0026] Such as figure 1 As shown, the method includes:

[0027] In step 101, the characteristic information of the spectrum resources that the authorized system can provide and the characteristic information of the spectrum resources required by the cognitive system are obtained.

[0028] In order to comprehensively describe the characteristics of spectrum resources, the characteristic information may include frequency characteristics, time characteristics and spatial characteristics.

[0029] Among them, the frequency feature can include information in the frequency domain such as center frequency and bandwidth; the time feature can include information such as the available duration of the spectrum, and the available start and end time; the spatial feature can include information such as the geographic range in which the spectrum is available. ...

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Abstract

The embodiment of the invention discloses a method and a system for spectrum allocation in a cognitive radio network. The method comprises the following steps of: determining matching degree of spectrum resources capable of being supplied by authorization systems and the spectrum resources required by cognitive system according to the spectrum resources capable of being supplied by the authorization systems and the spectrum resources required by the cognitive systems; determining a utility function value of the spectrum resource used by each cognitive system according to the matching degree and a spectrum resource utilization ratio of each cognitive system; and allocating the spectrum resources for the cognitive systems according to the utility function value of the spectrum resource used by each cognitive system. By adopting the method and the system which are disclosed by the invention, the whole spectrum utilization effect of the cognitive radio network can be improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a spectrum allocation method and system in a cognitive radio network. Background technique [0002] Cognitive radio, also known as smart radio, is a technology that dynamically perceives idle spectrum and allocates and utilizes it. Its core goal is to change the shortcomings of insufficient spectrum utilization in the existing fixed spectrum allocation method and to make more effective use of spectrum resources. To a certain extent, it alleviates the current situation of scarcity of spectrum resources. The core idea of ​​cognitive radio is to realize dynamic spectrum allocation and spectrum sharing through spectrum sensing and intelligent learning capabilities of the system. [0003] In cognitive radio networks, there are mainly two types of systems: authorized systems and cognitive systems. Licensed systems refer to some systems that have licensed spectrum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10
Inventor 韦再雪陈星
Owner CHINA MOBILE COMM GRP CO LTD
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