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Method for avoiding uplink interference of asynchronous orbit satellite to synchronous orbit satellite

A synchronous orbit satellite, weak interference technology, applied in the field of satellite communication, can solve the problem of not comprehensively considering the quality of users' use, etc., and achieve the effect of solving the problem of uplink interference, simplifying the interference situation and simple implementation.

Active Publication Date: 2020-01-17
北京中科晶上科技股份有限公司
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Problems solved by technology

[0012] Through analysis, it is found that the existing technology is based on interference avoidance strategies based on constellation trajectory, time slot allocation, and ground station adjustment, and there is no relatively perfect uplink interference avoidance strategy based on satellite adjustment that comprehensively considers user quality of use.

Method used

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  • Method for avoiding uplink interference of asynchronous orbit satellite to synchronous orbit satellite
  • Method for avoiding uplink interference of asynchronous orbit satellite to synchronous orbit satellite
  • Method for avoiding uplink interference of asynchronous orbit satellite to synchronous orbit satellite

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] In order to better understand the present invention, first introduce the background of the present invention. According to the relevant regulations of the ITU, it is required that measures must be taken to prevent interference to geostationary satellites when communicating in non-synchronous orbits. The usual method now is to reduce the power of the transmitter when the non-geostationary orbit satellite moves to an area that may affect the geosynchronous orbit satellite, so that the power of the interference signal is lower than the specified value, so as to avoid interference. ...

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Abstract

The invention provides a method for avoiding uplink interference of an asynchronous orbit satellite to a synchronous orbit satellite based on beam broadening in combination with user migration, the interference condition is simplified, and the beam operation of the satellite is divided into three types, namely closing, size adjustment and no change; the non-synchronous orbit satellite is closed ina strong interference area, so that the interference problem of the area can be well avoided; the beam size of the non-synchronous orbit satellite is adjusted in a weak interference area, the problemof a coverage blind area caused by beam closing of the non-synchronous orbit satellite can be solved, and the method is simple and easy to implement; and migrating the users possibly causing uplink interference to the adjacent asynchronous orbit satellites based on the user migration of the beam coverage service area. According to the method, the problem of uplink interference of the asynchronousorbit satellite system to the synchronous orbit satellite system is well solved, the service quality of a user is ensured, and the method is simple and easy to implement.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to an interference avoidance method in the field of satellite counterparts, and more specifically to a method for avoiding uplink interference from non-synchronous orbit satellites to synchronous orbit satellites. Background technique [0002] Compared with terrestrial mobile communications, satellite mobile communications can overcome more complex geographical environments and cover a larger area, so there is great demand in aviation, maritime and military fields. Satellites used for communication include geostationary orbit satellites, also known as high-orbit (GEO) satellites, and non-synchronous orbit satellites, also known as medium and low orbit (MEO&LEO) satellites. GEO satellites operate above the equator and are stationary relative to the earth; MEO&LEO satellites are constantly changing relative to the earth. In practical applications, the geostationary orbit satell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W28/02H04W52/24
CPCH04B7/18539H04B7/18543H04W28/0236H04W52/243Y02D30/70
Inventor 刘垚圻苏泳涛张锐王晓鹏税敏李瑞华张英英胡金龙石晶林
Owner 北京中科晶上科技股份有限公司
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