Channel resource allocation method for reticular satellite communication system

Abstract

The invention relates to a channel resource allocation method for a reticular satellite communication system, which has the main idea that a management terminal station receives the service request information of a terminal station, whether the terminal station is distributed with the carrier wave channel or not is judged according to the carrier wave channel marks in the request information, and then, the carrier wave channels are allocated to the terminal station which are not allocated with the carrier wave channels; the management terminal station carries out resource allocation in each carrier wave channel, and the resource allocation is directly carried out when the current carrier wave channel is greater than or equal to the request band width of the terminal station in the channel resource allocation process; and the terminal station is regulated into other carrier wave channels with the most band width resources for carrying out the channel resource allocation according to requirements when the available band width of the current carrier wave channel is smaller than the request width of the terminal station. In the method, as the mode of allocating the carrier wave channel marks, the carrier wave channel regulation and the signal resources according to the requirements is adopted, the system channel resources can be utilized to a furthest degree during the channel resource allocation of the reticular satellite communication system, and the resource utilization rate of the system and the reliability of the system are improved.

Description

technical field [0001] The invention relates to a channel resource allocation method of a mesh satellite communication system, which belongs to the communication field. Background technique [0002] The communication satellite system is a satellite communication management system composed of a ground terminal, an air satellite processing and switching unit, and a network management control center. It plays an important role in multimedia business fields such as digital TV, digital broadcasting, wide-area interconnection, distance education, telemedicine, video conferencing, and video on demand. Such as figure 1 As shown, the mesh satellite communication system is a new broadband VSAT network technology system. It is a VSAT satellite communication system without a master station. At present, MF-TDMA technology is mainly used to overcome the large earth station and The shortcoming of poor mobility, borrowing from the design idea of ​​FDMA, integrates FDMA and TDMA, uses carr...

AI Technical Summary

Problems solved by technology

However, the reserved channel method assigns a fixed channel carrier to the initial network terminal station. In practical applications, the number of carriers is often smaller than the number of terminal stations, so it is almost impossible for a terminal station to correspond to a carrier. When some terminal stations on a certain carrier The traffic volume is large, which leads to the increase of the load of the current carrier, while the rest of the carriers are relatively idle, resulting in a decrease in the efficiency of channel resources

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