Cognitive radio implementation method, medium, terminal and device

Abstract

The invention discloses a cognitive radio implementation method, medium, terminal and device, and the method comprises the following steps that a user terminal obtains the information of a target television service, and carries out the pre-downloading of the target television service before the playing moment of the target television service; and the network management terminal predicts and monitors the utilization rate of the target broadcast frequency band corresponding to the target television service at the playing moment, and releases the target broadcast frequency band and forms idle frequency spectrum information when the utilization rate is lower than a preset threshold. According to the invention, the storage device is used for pre-storing the non-real-time television service which is repeatedly broadcasted and accords with the watching preference of the user; the number of live viewers of the non-real-time television service is reduced; therefore, the utilization rate of thecorresponding broadcast frequency band is reduced, and when the utilization rate is reduced to be lower than the preset threshold value, the broadcast frequency band can be released to form an idle frequency band, so the user experience can be enhanced, the television program broadcasting cost can be reduced, and the frequency spectrum utilization efficiency and the energy efficiency of the wholesystem are improved.

Description

【Technical field】 [0001] The present invention relates to the field of cognitive radio, and in particular to an implementation method, medium, terminal and device of cognitive radio. 【Background technique】 [0002] In recent years, wireless communication services have been growing rapidly all over the world, which makes available spectrum resources for wireless communication become more and more scarce, and the problem of lack of spectrum resources is also becoming more and more serious. In the case of limited wireless spectrum resources, how to maximize the use of existing spectrum resources and improve spectrum utilization has become an urgent problem to be solved. According to some survey reports, the utilization rate of the VHF and UHF licensed frequency bands originally used for TV broadcasting is very low, and they are often idle. Spectrum (hereinafter referred to as white spectrum), specifically includes spectrum not allocated by the administrator, spectrum allocated...

AI Technical Summary

Problems solved by technology

At the same time, although some broadcast TV frequency bands are used for real-time TV signal transmission, the utilization rate of these frequency bands is very low, which not only increases user costs, but also is difficult to use as idle spectrum, reducing spectrum utilization

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