A satellite call access control method

Abstract

An on-board call access control method is characterized in that for access request, firstly judge the type of call: if a switching call, determine the switching call service is low-priority or high-priority, and implement the switching call request access process on the low-priority or the high-priority call service; if a new call, determine the new call service is low-priority or high-priority, and implement the new call request access process on the low-priority or the high-priority call service. Under the circumstances of ensuring the indexes of handoff failure probability of satellite systems, the new call-blocking probability, the link bandwidth utilization and so on, the invention fully considers the satisfaction of users and the influence of network-load changes on the system performances, effectively ensures the QOS requirement of mobile satellites, and improves comprehensive properties and robustness of satellite systems.

Description

technical field [0001] The invention relates to a method for allocating wireless channel resources in a low-orbit satellite network, in particular to a method for controlling call access on a satellite. Background technique [0002] Call access control refers to the provision of QOS guarantees for calls to be connected to the network, including newly initiated calls and calls handed over from adjacent cells due to handover. Allocate the required resources to ensure the QOS of the call, that is, reserve resources for the call on the star, otherwise reject the call. [0003] The low-orbit satellite network is also a network, and the satellites, ground stations, and master control stations in the satellite network form the nodes in the network. Due to the characteristics of the satellite network itself, that is, network topology and dynamic link changes, the link may often be interrupted; in addition, low-orbit satellites use spot beam antennas to cover the target area, and th...

AI Technical Summary

Problems solved by technology

The above two methods used on the ground are difficult to implement on the satellite due to the large amount of calculation and high real-time requirements.

[0006] To sum up, the current satellite access methods mainly have: large amount of calculation, poor real-time performance, low utilization rate of wireless resources on the satellite, and no quantitative consideration of different QOS requirements and satisfaction of users, so the overall utility of the service is relatively low , the utility here is a measure of application performance or service quality, which can reflect the subjective satisfaction of users with their obtained quantity resources, and is an important indicator to measure the performance of satellite systems

And the solution on the ground is difficult to realize on the star

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