Same-frequency interference suppression method based on protection area and directional antenna

Abstract

The invention discloses a same-frequency interference suppression method based on a protection area and a directional antenna, relates to a same-frequency interference mechanism analysis technology in a satellite-5G integrated network, and aims to solve the problem that the strength of a same-frequency interference signal is high when a frequency spectrum is shared in an existing satellite-5G integrated indirect access network. The method comprises: obtaining the minimum radius of a protection area by constructing an indirectly-accessed satellite-ground integrated network model; analyzing the directional antenna model, and normalizing the 5G base station antenna beam model and the satellite relay base station antenna beam model to obtain a main lobe gain and a side lobe gain of the satellite relay base station and a main lobe gain and a side lobe gain of the 5G base station; constructing a protection area network model with directional antenna nodes, and analyzing the interference threshold of the satellite relay base station to obtain the probability that the satellite relay base station keeps normal communication; therefore, the elevation angle of the directional antenna of the satellite relay base station is adjusted, and same-frequency interference is suppressed. The beneficial effect is that the intensity of receiving the interference signal from the 5G base station is reduced.

Description

technical field [0001] The invention relates to a mechanism analysis technology for same-frequency interference in a satellite-5G integrated network. Background technique [0002] With the rapid development of wireless communication technology, mobile communication networks relying only on ground equipment can no longer meet the needs of mobile users and network providers for service quality and data flow; in order to solve such problems and expand the ground mobile network, satellite systems are used in The role in providing a wide range of communication services has become very important. [0003] In order to realize the interconnection of all things in the future network, both the ground mobile system and the satellite mobile system are trying their best to show their advantages, and at the same time make up for the disadvantages of both sides; although the ground mobile system can provide high data rate and low delay services, the current system can only Covering about ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of high co-channel interference signal strength during spectrum sharing in the existing satellite-5G integrated indirect access network, and propose a co-channel interference suppression method based on protection zones and directional antennas

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