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Handover test method for satellite communication system service station

A satellite communication system and handover technology, which is applied in the field of handover testing of satellite communication system service stations, and achieves the effects of simple constituent elements, rich varieties, and stable and reliable performance.

Active Publication Date: 2020-07-14
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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  • Handover test method for satellite communication system service station
  • Handover test method for satellite communication system service station
  • Handover test method for satellite communication system service station

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Experimental program
Comparison scheme
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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 for a satellite communication system service station, and belongs to the technical field of satellite communication. According to the method, a test environment is constructed; characteristics of satellite channel transmission time delay, channel attenuation, noise, Doppler frequency shift and the like and service communication are simulated; a satellite beam coverage area on a map is customized by operating a computer; the geographical position information change of the tested equipment in the movement process is simulated. The method comprises the following steps: receiving geographical location information and signal quality of one or more tested channel terminal devices, sending control data to the one or more tested channel terminal devices, and triggering a handover algorithm by the tested channel terminal devices in combination with the received geographical location information and signal quality in the test process, thereby realizing the test of the handover function of the tested channel terminal devices. According to the method, the problem that a service station cannot actually move in an outdoor environment can be solved,the situation that a user station moves among multiple beams on a map can be simulated, and therefore the feasibility and reliability of the handover function of satellite communication equipment areimproved in an assisted manner.

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 Applications(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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