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

A directional antenna, co-frequency interference technology, applied in wireless communication, radio transmission system, network planning and other directions, can solve the problem of high co-frequency interference signal strength, and achieve the effect of reducing the interference signal strength and alleviating interference

Pending Publication Date: 2022-01-18
HARBIN INST OF TECH
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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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  • Same-frequency interference suppression method based on protection area and directional antenna
  • Same-frequency interference suppression method based on protection area and directional antenna
  • Same-frequency interference suppression method based on protection area and directional antenna

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specific Embodiment approach 1

[0022] Specific implementation mode one: combine figure 1 Describe this embodiment, a method for suppressing co-channel interference based on a protection zone and a directional antenna described in this embodiment, the suppression method includes the following steps:

[0023] Step 1. Based on 5G base stations, satellite relay base stations and LEO satellites, construct a satellite-terrestrial integrated network model for indirect access;

[0024] Step 2. On the basis of the satellite-ground integrated network model constructed in step 1, analyze the range of the circular protected area of ​​the satellite relay base station, and obtain the minimum radius of the protected area;

[0025] Step 3: Construct a directional antenna model based on the 5G base station and satellite relay base station, and analyze the directional antenna model to form a 5G base station antenna beam model and a satellite relay base station antenna beam model respectively, and then analyze the 5G base sta...

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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 ...

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Application Information

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IPC IPC(8): H04W16/18H04W16/22H04W16/28H04W16/30H04W84/06H04B7/185
CPCH04W16/18H04W16/22H04W16/28H04W16/30H04W84/06H04B7/1853H04B7/18571
Inventor 杨明川苗欣欣谢冰玉刘艺璇薛冠昌窦映喆苏雁泳迟永钢
Owner HARBIN INST OF TECH
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