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Method and device for determining switching path between satellites, terminal and storage medium

A technology for switching paths and determining methods, which is applied in the field of communication, and can solve problems such as prolongation of switching times, and achieve the effect of solving inaccurate recommended paths

Active Publication Date: 2020-05-12
南京中科晶上通信技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve any of the above technical problems, this application provides a method, device, terminal and storage medium for determining inter-satellite handover paths, by analyzing the number of inter-satellite handovers and the number of satellite feeder handoffs for multiple inter-satellite pre-handover paths , which solves the problem of too long switching delay caused by too many feed switching times

Method used

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  • Method and device for determining switching path between satellites, terminal and storage medium
  • Method and device for determining switching path between satellites, terminal and storage medium
  • Method and device for determining switching path between satellites, terminal and storage medium

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Embodiment 1

[0029] The embodiment of the present application provides a method for determining an inter-satellite handover path, such as figure 1 As shown, the method includes:

[0030] Step S101, based on the satellite ephemeris corresponding to the multiple satellites and the position information and speed information of the target terminal, determine the multiple overhead satellites passing the target terminal and the target terminal corresponding to the signal coverage of the multiple overhead satellites. Dwell time information.

[0031] In the embodiment of the present application, the satellite ephemeris is used to represent the expression of the position and velocity of the spaceflight object, that is, the two-line orbit data system. Specifically, the spaceflight object includes satellites, spacecraft and other flying objects entering space, satellites, Once a spacecraft or flying object enters space, it will be included in the NORAD satellite ephemeris number catalog, and the spa...

Embodiment 2

[0064] In order to further illustrate the method for determining the inter-satellite handover path provided by the embodiment of the present application, the following uses a gateway station as an example to further describe the present application.

[0065] First, after obtaining the corresponding data according to step S101, step S102 and step S103, it can be expressed according to formula (1),

[0066]

[0067] Among them, the first column in formula (1) is the satellite number, that is, after the user terminal u i The number of the satellite; the second column in the formula (1) is the moment when the user terminal enters the satellite signal coverage area, such as t sij represents the user terminal u i Enter Satellite S j The moment of the coverage area; the third column in formula (1) is the moment when the user terminal leaves the satellite signal coverage area, such as t eij represents the user terminal u i leave satellite S j The end time of the coverage area;...

Embodiment 3

[0085] The embodiment of the present application provides a device for determining an inter-satellite handover path, such as Figure 5 As shown, the device includes: an overhead satellite determination module 501, a pre-handover route determination module 502, a route information determination module 503, and a handover route recommendation module 504, wherein,

[0086] The overhead satellite determination module 501 is used to determine the multiple overhead satellites passing the target terminal and the target terminal's respective positions in the multiple overhead satellites based on the satellite ephemeris corresponding to the multiple satellites and the position information and speed information of the target terminal. The corresponding residence time information within the signal coverage;

[0087] The pre-handover path determination module 502 is used to generate multiple inter-satellite pre-handover paths for the target terminal according to the resident time informat...

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Abstract

The embodiment of the invention provides a method and a device for determining a switching path between satellites, a terminal and a storage medium. The method comprises the following steps: determining residence time information corresponding to the target terminal passing through the target terminal in respective signal coverage ranges of a plurality of over-the-top satellites based on satelliteephemeris corresponding to a plurality of satellites and position information and speed information of the target terminal; generating a plurality of inter-satellite pre-switching paths for the target terminal according to the residence time information corresponding to the target terminal in the respective signal coverage ranges of a plurality of over-the-top satellites; determining inter-satellite switching times and feed switching related information corresponding to a plurality of inter-satellite pre-switching paths; and determining a recommended switching path according to the inter-satellite switching times and the feed switching related information. According to the embodiment of the invention, the method solves a problem that the finally determined recommended path is too long inswitching time delay and even is interrupted in service because only the switching times between the satellites are considered in the prior art.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method, device, terminal and storage medium for determining an inter-satellite handover path. Background technique [0002] Low Earth Orbit satellites (English name: Low Earth Orbit, referred to as LEO) are widely used in the field of mobile communications. Low-orbit satellite LEO is generally located at an orbital altitude of 160 kilometers to 2,000 kilometers from the earth. It moves at a high speed relative to the earth. Generally, a single satellite can only provide users with a few minutes of service time. For example, the orbital altitude is 1,000km, and the minimum elevation angle is 10 degrees. In the current LEO satellite system, a single satellite can only maintain a connection with the user for about 6 minutes. Therefore, user terminals frequently switch between satellites. Since the operation of low-orbit satellites in orbit is generally peri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18521
Inventor 梅妍施渊籍胡金龙石晶林
Owner 南京中科晶上通信技术有限公司
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