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A Handover Test Method for Service Stations of Satellite Communication System

A satellite communication system and handover technology, which is applied in the handover test field of satellite communication system service stations, and achieves the effects of wide application range, strong compatibility, and stable and reliable performance

Active Publication Date: 2021-12-07
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing disclosed test methods related to handover technology usually involve cell handover controlled by mobile stations and other simulated base stations in mobile communication systems. This method is not easy to solve the above problems

Method used

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  • A Handover Test Method for Service Stations of Satellite Communication System
  • A Handover Test Method for Service Stations of Satellite Communication System
  • A Handover Test Method for Service Stations of Satellite Communication System

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention.

[0029] figure 1 Shown is the test system for handover function test, the test system includes operating computer, test software, switch, channel terminal equipment to be tested, satellite channel simulation system, and service simulation equipment. Among them, the operating computer is installed with control software, and the terminal equipment of the channel under test is connected through a switch. The satellite channel simulation system is connected with the equipment under test using an intermediate frequency cable. The satellite channel simulation system simulates satellite beacons, delay, noise, Doppler frequency The service simulation equipment and the channel terminal equipment under test are connected through the service interface and maintain service intercommunication.

[0030] ...

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Abstract

The invention discloses a handover test method of a service station of a satellite communication system, belonging to the technical field of satellite communication. The method builds a test environment, simulates satellite channel transmission delay, channel attenuation, noise, Doppler frequency shift and other characteristics and business communication, and simulates the movement process of the device under test by operating the computer to customize the satellite beam coverage area on the map. The geographic location information in the test channel changes, and sends control data to one or more channel terminal devices under test. During the test, the channel terminal device under test combines the received geographic location information and signal quality to trigger the handover algorithm, thereby Realize the test of the handover function of the channel terminal equipment under test. This method can solve the problem that the service station cannot actually move in the outdoor environment, and can simulate the situation where the user station moves between multiple beams on the map, thereby assisting in improving the feasibility and reliability of the handover function of the satellite communication equipment.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a handover test method of a satellite communication system service station. Background technique [0002] The handover function of the satellite communication system is characterized by delay, noise, Doppler frequency shift and other characteristics of the satellite channel, and the beacons of different satellites are different. When the satellite transponder adopts multi-spot beam technology, the service station will face the situation of crossing the coverage areas of different beams. Since the actual coverage area of ​​satellite beams is usually an elliptical area with a projected area of ​​more than 100 kilometers in radius, and different satellites have different beam coverage areas, the handover test of satellite communication system service stations is relatively difficult, and the actual measurement cost High and inefficient. Moreover, when the satellite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04B7/185H04B17/00
CPCH04B7/18519H04B17/0087H04W36/0083H04W36/0085
Inventor 刘征郝学坤侯睿曹毅赵波黄先超胡军格祝杰高军建郭丽丽韩志天赵磊翟猛
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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