针对LEO卫星网络中具有自主定位能力的用户终端,采用基于地理位置的动态位置区划分方案,根据用户移动速度设置位置区的大小。在动态位置区的基础上,对高速移动用户提出了一种基于时延限制的分组寻呼策略。仿真结果表明,对于低速移动用户,二次寻呼策略的时延和开销性能最佳;对于高速移动用户,基于时延限制的分组寻呼策略最佳。 Aiming at the user terminals with autonomous positioning capability in LEO satellite network, the dynamic location area division scheme based on geographic location is adopted, and the size of the location area is set according to the user movement speed. Based on the dynamic location area, a packet paging strategy based on delay limit is proposed for high-speed mobile users. Simulation results show that for low-speed mobile users, the paging strategy has the best delay and overhead performance. For high-speed mobile users, the paging strategy based on the delay limit is the best.