| 摘要: |
| 低轨(LEO)卫星快速运动,移动终端(MT)相对于卫星的位置信息也在不断变化,如何有效地管理MT的位置信息,减小位置更新频率和寻呼开销是研究位置管理的主要目的。为此,提出一种低轨卫星系统中的动态位置管理策略,基于时间和移动相结合进行位置更新,在不增加寻呼开销的条件下,减小了位置更新频率,从而有效降低了位置管理的总开销。 |
| 关键词: 低轨卫星网络,位置管理,动态位置更新,移动终端 |
| DOI：10.3969/j.issn.1001-893X. |
| 投稿时间：2007-03-08修订日期：2007-11-30 |
| 基金项目: |
|
| Location Update Strategy Based on Timer and Movement for LEO Satellite Networks |
|
| () |
| Abstract: |
| LEO(Low Earth Orbit) satellite is moving fast and the location information of MT(mobile terminal) is changing all the way,so managing the location information of MT effectively and minimizing location update frequency and paging cost are the main purposes.So,a location update strategy based on time and movement is proposed.Location update frequency is decreased without increasing the paging cost,as a result,the total cost of location management is decreased. |
| Key words: LEO satellite networks,location management,dynamic location update,mobile terminal |
《电讯技术》编辑部 