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Calculation Method of Optimal Broadcast Period for Mobility Management of Non-Geostationary Orbit Satellite Communication System

A technology of a satellite communication system and a calculation method, which is applied in the field of calculation of the optimal broadcast period of mobility management, can solve problems such as contention and access conflicts, and achieve the effects of reducing system overhead and improving access performance

Active Publication Date: 2021-10-01
XIDIAN UNIV
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Problems solved by technology

[0005] To sum up, the existing problems in the prior art are: in the prior art non-geostationary orbit satellite communication system, there are contention access conflicts caused by the simultaneous broadcast triggering of mobility management services. Performance has a great impact, so it is necessary to calculate the optimal broadcast period

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  • Calculation Method of Optimal Broadcast Period for Mobility Management of Non-Geostationary Orbit Satellite Communication System
  • Calculation Method of Optimal Broadcast Period for Mobility Management of Non-Geostationary Orbit Satellite Communication System
  • Calculation Method of Optimal Broadcast Period for Mobility Management of Non-Geostationary Orbit Satellite Communication System

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[0043] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] Such as figure 1 As shown, the non-geostationary orbit satellite communication system mobility management optimal broadcast period calculation method provided by the embodiment of the present invention includes the following steps:

[0046] S101: Calculate the total number of average access requests for mobility management;

[0047] S102: Calculate the time overhead for completing the mobility management access request;

[0048] S103: Calculate the number of competing users f...

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Abstract

The invention belongs to the technical field of satellite communication, and discloses a method for calculating an optimal broadcast cycle for mobility management of a non-geostationary orbit satellite communication system; the method for calculating an optimal broadcast cycle for mobility management of a non-geostationary orbit satellite communication system is based on an application scenario in a broadcast cycle T AGT_ADV At the beginning, the number of newly added users in the coverage area triggered by satellite broadcasting related information is N. These users need to start the mobility management process at the same time, compete for access to the satellite in the way of time slot ALOHA and send mobility management request information ; In order to reduce the system overhead caused by competition conflicts, improve the access performance of the system, construct the optimization target expression of the minimum average time overhead, find out the optimal number of users of the system at this time, and find out the optimal broadcast cycle of the present invention The invention solves the problems of contention access conflicts caused by simultaneous broadcast triggering and generation of mobility management services in the prior art non-geostationary orbit satellite communication system, and the problem of system access performance degradation.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and in particular relates to a method for calculating an optimal broadcast period for mobility management in a non-geostationary orbit satellite communication system. Background technique [0002] Satellite communication refers to the way of using artificial earth satellites as relay nodes or communication nodes of the communication network to communicate. An emerging wireless communication technology developed on the basis of microwave communication and aerospace technology. Satellite communication has become a research hotspot due to its large coverage area, long communication distance, large communication capacity, stable communication lines, and good quality. The relative movement between non-geostationary orbit satellites and ground users in the satellite communication system causes users to passively generate mobility management events. [0003] In the existing technology ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04B7/185
CPCH04B7/1851H04W74/0833
Inventor 刘勤蔡冬桃黄鹏宇李红艳
Owner XIDIAN UNIV
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