Lossless switching method for inter-satellite data of low-orbit satellites

A data lossless, low-orbit satellite technology, applied in the field of satellite communication, can solve the problems of fast movement of low-orbit satellites, short transmission, single-satellite and single-beam overhead time, etc., to achieve simple and reliable models, high satellite reliability, Facilitate the effect of algorithm strategy adjustment

Active Publication Date: 2020-05-29
中国星网网络应用有限公司
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Problems solved by technology

The problem that needs to be solved urgently is that due to the fast movement of low-orbit satellites, the large number of single-satellite beams, and the short overhead time of single-satellite and single-beam, user

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  • Lossless switching method for inter-satellite data of low-orbit satellites

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[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Reference figure 1 , A method for lossless switching of data between low-orbit satellites, which is applied between low-orbit satellites and between relay stations and low-orbit satellites. A single transmission process includes a sending end and a receiving end, and mainly includes the following steps:

[0036] It is applied between user terminals, satellites, and network controllers to realize lossless line switching between user terminals and different satellites. It specifically includes the following steps:

[0037] S1: The user terminal performs measurement according to the measurement configuration provided by the network, genera...

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Abstract

The invention discloses a lossless switching method for inter-satellite data of low-orbit satellites, which specifically comprises the following steps that: S1, a user terminal sends a measurement report to a network controller according to the generated measurement report, S2, the network controller executes switching judgment, if switching can be carried out, S3 is executed, and if switching cannot be carried out, S4 is executed, S3, it is judged whether the target satellite resources are allowed to be switched or not, if yes, S5 is executed, and if not, S4 is executed, S4, switching is notcarried out, S4', it is judged whether the user terminal of which the signal stays on the original satellite has a switching continuing demand or not, if so, S1 is executed, and if not, the switchingaction is stopped, S5, the target satellite allocates channel resources to the allowed user terminal, and sends a switching request instruction to the terminal through the service satellite, S6, the terminal receives the switching request and sends switching success information to the target satellite, S7, the network controller immediately releases the temporary storage data and S8, switching iscompleted. The device has the advantages of being simple in structure, smooth in network access and small in loss.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a method for lossless data switching between low-orbit satellites. Background technique [0002] The low-orbit satellite constellation has the characteristics of low signal delay, strong power, and seamless global coverage. With the upsurge of low-orbit satellite Internet at home and abroad, low-orbit communication satellites have developed rapidly. The problem that needs to be solved urgently is that due to the fast movement of low-orbit satellites, the large number of single-satellite beams, and the short overhead time of single-satellite and single-beam, users need to switch frequently without feeling to maintain continuous communication with good QOS (quality of service) . On the other hand, factors such as interference may also cause transmission switching. Excellent handover strategy and technology can reduce handover delay, handover frequency, improve cha...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04W36/00H04W36/38H04W40/24
CPCH04B7/18541H04W36/38H04W40/248H04W36/0058H04W36/0085
Inventor 赵晓雪
Owner 中国星网网络应用有限公司
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