A method for lossless switching of data between low-orbit satellites

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

Active Publication Date: 2021-11-02
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, users need to switch frequently without feeling to maintain continuous communication with good QOS (quality of service)
On the other hand, due to factors such as interference, it will also cause the transmission to switch

Method used

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  • A method for lossless switching of data between low-orbit satellites

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0035] refer to figure 1 , a method for lossless data switching 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] Applied between user terminals, satellites, and network controllers, to realize lossless line switching between user terminals and different satellites, specifically including the following steps:

[0037] S1: The user terminal performs measurement according to the measurement configuration provided by the network, generates a measurement report, and sends...

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Abstract

The invention discloses a method for lossless switching of low-orbit satellite inter-satellite data, which specifically includes the following steps: S1: the user terminal sends the measurement report to the network controller according to the generated measurement report; S2: the network controller performs switching judgment, if the switching is possible , enter S3, if switching is not possible, enter S4; S3: judge whether the target satellite resource is allowed to switch, if allowed, enter S5, if not, enter S4; S4: do not perform switching; S4': judge whether the signal stays on the original satellite Whether the user terminal has a need to continue switching, if so, return to S1, if not, then end the switching action; S5: The target satellite allocates channel resources for the allowed user terminal, and sends a switching request instruction to the terminal through the serving satellite; S6: The terminal receives Handover request, sending handover success information to the target satellite; S7: The network controller immediately releases the temporarily stored data; S8: The handover is completed. The invention has the advantages of simple structure, smooth network access and low 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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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04W36/00H04W36/38H04W40/24
CPCH04B7/18541H04W36/38H04W40/248H04W36/0058H04W36/0085
Inventor 赵晓雪刘鸿鹏谷林海王艳峰
Owner 中国星网网络应用有限公司
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