Satellite communication networking system and working method thereof
A satellite communication and networking technology, applied in the field of satellite communication networking systems, can solve the problems of fixed structure, limited node transmission capacity, single application scenario, etc., and achieve the effect of improving efficiency
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Embodiment 1
[0040] Embodiment 1 of the present invention provides a satellite communication networking system, such as figure 2 As shown, including: central satellite master station, distributed central satellite station, ordinary satellite station, small-aperture antenna satellite station, central satellite master station, distributed central satellite station, and ordinary satellite station are connected to each other through asynchronous time division multiple access network Communication; the asynchronous time division multiple access (TDMA) network performs data communication and high-speed and large-capacity data distribution through the priority of each satellite station. It is the backbone transmission link. The station types include ground fixed stations and large-caliber vehicle stations. The asynchronous time division multiple access network adopts a centerless and asynchronous access mode, and the forward link adopts a time division multiplexing mode. The asynchronous time div...
Embodiment 2
[0050] Embodiment 2 of the present invention provides a business process of a satellite communication networking system such as image 3 shown, including:
[0051] The system includes two sub-networks, namely, the asynchronous centerless TDMA network and the small-aperture antenna satellite station backhaul network. Carriers are divided into different time slots to prevent collisions of data sent by stations to the forward link. In this system, the central satellite master station has the time slot allocation and management function of the forward link, and dynamically allocates time slot resources, that is, allocates different time slot resources according to the different communication rate requirements of satellite sites in each subnet .
[0052] There are four types of time slots in this system, initial reference time slots, access contention time slots, bidirectional time division multiple access time slots and forward time division multiplexing time slots, and the leng...
Embodiment 3
[0058] Embodiment 3 of the present invention provides a working method of a satellite communication networking system. The central satellite master station is the core of the system, manages and controls the entire network, and can realize direct data transmission with each station in the system. The central satellite master station Manage and allocate network-wide forward time slot resources, receive network access application burst time slot data and service transmission resource application burst data from each site, and dynamically allocate time slot resources and spectrum resources according to the resource status of the entire network.
[0059] like Figure 4 As shown, the method of the present embodiment includes:
[0060] Step A1: After the central satellite master station is started, it sends the reference time slot and the access competition time slot. When receiving the network access application message sent by other satellite stations, it sets the status identifie...
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