面向卫星通信系统的寻呼方法

Paging Method for Satellite Communication System

分析了卫星通信中的固定追踪区(TA)和卫星移动小区的配置特性,以及由此导致的通信寻呼效率低下问题。针对卫星通信系统提出了一种基于动态追踪区(DTA)的寻呼方法,包括基于用户位置、移动模式、签约信息为用户设备(UE)定制DTA以及基于UE-DTA进行UE寻呼。该方法可实现寻呼信令载荷和TA更新信令频率之间的平衡,减轻寻呼信令负荷,提高寻呼效率。

The configuration characteristics of earth-fixed tracking areas(TA)and earth-moving cells in satellite communication systems and the resulting of paging inefficiency are analyzed.A paging optimization method based on dynamic tracking area(DTA)is proposed for the sat⁃ellite system,which includes determining a customized DTA for user equipment(UE)by the network based on UE position,mobility pat⁃terns,and subscription information,and performing paging request based on UE-DTA.It achieves a better trade-off between paging signal⁃ling load and registration update signalling,reduces paging signalling load and improves paging efficiency.