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Cognitive radio system-based spectrum allocation method and equipment

A cognitive radio and spectrum allocation technology, applied in the field of spectrum allocation based on cognitive radio systems, can solve problems such as a small number of users, low spectrum efficiency, and small business volume, and achieve high service transmission, maximum utilization efficiency, and Effects of Improving Spectrum Utilization Efficiency

Active Publication Date: 2014-03-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Any CR system can use blank spectrum, but the characteristics of each CR system are different, and the effect brought by each CR system when running on a certain frequency point will be different; if there are not many users of the system itself, the traffic volume is small , when the system uses blank spectrum, the spectrum efficiency is low; systematic transmission information has a higher priority, and the system needs to have a higher priority to use the spectrum

Method used

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  • Cognitive radio system-based spectrum allocation method and equipment
  • Cognitive radio system-based spectrum allocation method and equipment
  • Cognitive radio system-based spectrum allocation method and equipment

Examples

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Embodiment 1

[0031] In view of the problems in the prior art, after considering the following situations, Embodiment 1 of the present invention provides a spectrum allocation method based on a cognitive radio system.

[0032] (1) The business characteristics and business requirements of each system using blank spectrum are different; for example: LTE outdoor network needs to meet multiple user communications at the same time, needs to cover a large geographical location, and it is difficult for base stations and other equipment to change locations; Wi-Fi network The change of the location of the access point will be more flexible; the business of the private network has urgent and important characteristics, but generally the amount of data will not be too large. Furthermore, for the same type of network, due to differences in the number of users or types of services, even if the same frequency resource is used, the throughput of the system will be quite different.

[0033] (2) Different sy...

Embodiment 2

[0062] Embodiment 2 of the present invention provides a spectrum allocation method based on a cognitive radio system. It is assumed that there are three cognitive radio systems, which are CRS1, CRS2, and CRS3. CRS1 is a cognitive TD-LTE macrocellular system, and CRS2 is a cognitive TD system. -LTE network, CRS3 is a sensory fire protection network; based on this application scenario, the process of spectrum allocation specifically includes:

[0063] Step A, CRS1, CRS2 and CRS3 send spectrum resource application messages to the spectrum scheduling unit respectively; wherein, the information carried in the spectrum resource application message sent by CRS1 is shown in Table 3, and the information carried in the spectrum resource application message sent by CRS2 is as follows As shown in Table 4, the information carried in the spectrum resource application message sent by CRS3 is shown in Table 5.

[0064] table 3

[0065]

[0066] Table 4

[0067]

[0068] table 5

[00...

Embodiment 3

[0081] Based on the same inventive concept as the above method, an embodiment of the present invention also provides a spectrum allocation device based on a cognitive radio system, such as figure 2 As shown, the equipment includes:

[0082] The receiving module 11 is configured to respectively receive spectrum resource application messages from multiple cognitive radio systems, where the spectrum resource application messages carry service priorities corresponding to the cognitive radio systems;

[0083] An allocation module 12, configured to allocate spectrum resources for each cognitive radio system by using the service priority corresponding to each cognitive radio system and available blank spectrum resources;

[0084] The sending module 13 is configured to notify the corresponding cognitive radio system of the information of the allocated spectrum resources.

[0085] The allocation module 12 is specifically configured to use the service priorities corresponding to the c...

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PUM

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Abstract

The invention discloses a cognitive radio system-based spectrum allocation method and equipment. The method comprises: a spectrum scheduling unit respectively receives spectrum resource application messages from a plurality of cognitive radio systems, wherein the spectrum resource application messages carry service priority levels corresponding to cognitive radio systems; the spectrum scheduling unit utilizes the service priority levels corresponding to all the cognitive radio systems and available white-space spectrum resources to allocate spectrum resources for all the cognitive radio systems; and the spectrum scheduling unit informs the corresponding cognitive radio systems of information of the distributed spectrum resources. According to the embodiment of the invention, on the basis of the system demand and consideration of the equity principle, the white-space spectrum resources are distributed to the multiple cognitive radio systems, thereby maximizing the utilization efficiency of the white-space spectrums, improving the using efficiency of the spectrums, and ensuring service transmission of the system having the higher priority.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a spectrum allocation method and equipment based on a cognitive radio system. Background technique [0002] Wireless communication spectrum is a precious natural resource, and the problem of poor spectrum resources is becoming more and more serious. In order to alleviate the current situation of spectrum resource shortage, through monitoring and research on wireless communication spectrum, it is found that some frequency bands (such as TV bands) are not available most of the time. It is not used or not used in most regions, and some frequency bands have multi-system and multi-user competition; CR (Cognitive Radio, Cognitive Radio) was born under this background, and its basic idea is: in the wrong Under the premise that the authorized system causes interference, the CR system can dynamically select blank frequency bands for communication by monitoring changes in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/02
CPCH04W16/02H04W16/14
Inventor 李媛媛蒋成钢白文岭杨宇
Owner DATANG MOBILE COMM EQUIP CO LTD
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