Spectrum sensing method, spectrum sensing system, client and server

Abstract

The invention provides a spectrum sensing method, a spectrum sensing system, a client and a server. The spectrum sensing method includes the following steps that: an energy sensing mode is adopted to judge whether interference signals exist; a cyclic spectrum characteristic sensing mode is adopted to judge whether interference signals exist; and whether interference users exist is judged according to the judgment results of the energy sensing mode and the cyclic spectrum characteristic sensing mode. According to the spectrum sensing method, the energy sensing mode and the cyclic spectrum characteristic sensing mode are adopted to perform mixed sensing on spectra, so that coarse sensing and fine sensing combined spectrum hybrid sensing can be realized, and therefore, the precision and speed of detection for the interference users can be improved.

Description

technical field

[0001] The present invention relates to the technical field of communications, and in particular, to a spectrum sensing method, a spectrum sensing system, a client and a server. Background technique

[0002] In the LTE system, the UE in its own channel is an authorized user, and there is no need to consider whether it will affect the communication of other users in the channel during communication. However, considering the interference of potential interfering users on their own communication, spectrum sensing can be performed on the channel to avoid the signal being communicated, so that their own communication will not be affected.

[0003] In the LTE system, if the cognitive channel can be used cognitively, spectrum utilization can be improved. In this part of the frequency band, the cognitive users of the LTE system are secondary users, and the behavior of occupying the unlicensed frequency band will affect the communication of other licensed users that ...

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