面向卫星通信系统的寻呼方法

摘要：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。

关键词：卫星通信；非地面网络；寻呼；动态追踪区

Abstract: 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 satellite system, which includes determining a customized DTA for user equipment (UE) by the network based on UE position, mobility patterns, and subscription information, and performing paging request based on UE-DTA. It achieves a better trade-off between paging signalling load and registration update signalling, reduces paging signalling load and improves paging efficiency.

Keywords: satellite telecommunication; non-terrestrial network; paging; dynamic tracking area