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Multi-gateway beam hopping synchronization method and system for high-throughput satellite

A gateway station and high-throughput technology, which is applied in the field of satellite communication, can solve the problem that the beam-hopping synchronization scheme has not been studied in detail, and achieve the simplification of the synchronization process and the complexity of on-board processing, improve reliability, and simplify processing complexity Effect

Active Publication Date: 2021-10-01
XIAN INSTITUE OF SPACE RADIO TECH
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  • Application Information

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Problems solved by technology

[0007] Relevant foreign literature focuses on the advantages of beam hopping and the analysis of the improvement of system capacity, and gives a rough transponder block diagram. There is no detailed study on the beam hopping synchronization scheme between multiple gateways when the HTS system is used.

Method used

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  • Multi-gateway beam hopping synchronization method and system for high-throughput satellite
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  • Multi-gateway beam hopping synchronization method and system for high-throughput satellite

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Embodiment

[0076] The ground gateway station group needs to include the network control center, the master gateway station and multiple slave gateway stations. The network control center has the ability to exchange information with multiple gateway stations. Each gateway station in the system generates the required forward control signaling signal according to the hopping requirements of the service signal, including control signaling and time signaling; it is sent to the satellite through the independent carrier of the feeding uplink, and the satellite After receiving the signal, the forward link transponder performs carrier separation and sends it to the hopping beam controller. The hopping beam controller detects the forward control signaling signal. If it is a control signaling, it extracts the beam switching control contained in the control signaling. The information is also used for beam switching. If it is time signaling, time comparison is performed to extract the time difference...

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Abstract

The invention discloses a multi-gateway beam hopping synchronization method and system for a high-throughput satellite. The method comprises firstly, a ground gateway group mainly comprises a network control center, a master gateway and a plurality of slave gateways, and each gateway generates a service signal and a synchronous control signal; then, a forward link transponder in a beam hopping satellite load separates the service signal and the control signal sent by each gateway, wherein the service signal is sent to a rear-end power amplification link, and the synchronous control signal is sent to a beam hopping controller for processing; and the hopping beam controller performs analysis and time comparison on the synchronous control signals of the plurality of gateways, extracts time errors between the slave gateways and the master gateway, and controls a switch link at the rear end of the hopping beam according to an analyzed hopping beam control instruction. The method is simple in beam hopping synchronization process, short in synchronization time and simple and reliable in on-satellite processing, and does not depend on a specific service communication system.

Description

technical field [0001] The invention relates to a multi-gateway station hopping beam synchronization method and system for high-throughput satellites. The method is mainly used for a beam-hopping system based on transparent forwarding on a satellite, and belongs to the technical field of satellite communication. Background technique [0002] With the development of Internet applications, the global demand for broadband satellite communication services is increasing year by year, especially with the deepening of the application of cloud computing, Internet of Things and 5G technologies, the characteristics of satellite wide-area coverage are gradually emerging, and the satellite communication system The demand for capacity will show a blowout growth, and the types of information services that need to be supported will also emerge in an endless stream. In order to cope with this change in demand, satellite communication technology is gradually developing towards a high through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04B7/204H04W56/00H04W84/06
CPCH04B7/18513H04B7/185H04B7/2041H04W56/0015H04W84/06Y02D30/70
Inventor 李军翟盛华惠腾飞龚险峰王大庆
Owner XIAN INSTITUE OF SPACE RADIO TECH
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