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近年来，随着社会经济的迅猛发展，对个人通信的需求不断增长，促使各种通信手段得到了长足的发展。移动卫星通信系统以其覆盖范围广的特点，日益得到人们的广泛重视，今后必将成为个人通信的一个重要方式。通过分析低轨（ＬＥＯ）移动卫星通信系统与陆地蜂房系统之间的不同特点，提出了适用于ＬＥＯ移动卫星通信的动态平衡话务模型，在此基础上讨论了在信道竞争上将切换呼叫和原始呼叫等同对待的无优先权切换模型，这种模型可应用于星间切换和波束切换分析。运用此模型对一个ＬＥＯ移动卫星通信系统进行了实际切换分析。
In recent years, with the rapid socio-economic development, the demand for personal communications has been constantly increasing, prompting the rapid development of various means of communication. With its wide coverage, mobile satellite communication systems are gaining increasingly widespread attention and will surely become an important way for personal communication in the future. By analyzing the different characteristics of LEO mobile satellite communication system and terrestrial apiary system, a dynamic balanced traffic model suitable for LEO mobile satellite communication is proposed. On the basis of the analysis, The original call is treated equally without priority switching model, this model can be applied to inter-satellite handover and beam switching analysis. Using this model, a LEO mobile satellite communication system is analyzed.