北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2023, Vol. 46 ›› Issue (3): 67-72.

• 论文 • 上一篇    下一篇

一种时空混合的位置管理方案

陈发堂,韩才君,张航,李欣超   

  1. 重庆邮电大学 通信与信息工程学

  • 收稿日期:2022-03-21 修回日期:2022-07-07 出版日期:2023-06-28 发布日期:2023-06-05
  • 通讯作者: 陈发堂 E-mail:chenft@cqupt.edu.cn
  • 基金资助:
    -国移动科研基金研发项目(MCM201805-2)

A Spatio-Temporal Hybrid Location Management Scheme

  • Received:2022-03-21 Revised:2022-07-07 Online:2023-06-28 Published:2023-06-05

摘要:

目前,移动通信系统中的位置管理方案忽略了周期性位置更新的影响,从而导致网络对终端位置跟踪的性能下降对此,提出了一种移动性和周期性结合的位置跟踪方案首先,终端跨越跟踪区域列表的边界或定时器达到阈值时,都会向网络发起位置更新请求;然后,网络呼叫时先向上次终端发生位置更新的跟踪区发起寻呼,如果呼叫不成功,再向跟踪区列表发起寻呼;最后,利用马尔可夫链模型对位置更新和寻呼的信令开销进行了推导仿真实验结果表明,所提方案得到了跟踪区域列表的最佳配置,从而使总信令开销最小化.

关键词:

Abstract:

At present, the location management scheme in mobile communication systems ignores the impact of periodic location updates, which leads to the degradation of the performance of the network for terminal location tracking, and a location tracking scheme combining mobility and periodicity is proposed. First, the terminal initiates a location update request to the network whenever it crosses the boundary of the tracking area list or when the timer reaches the threshold. Then, the network calls first initiate paging to the tracking area where the last location update of the terminal occurred, and then initiates paging to the tracking area list if the call is unsuccessful. Finally, the signaling overhead of location update and paging is derived using a Markov chain model. The simulation experimental results show that the proposed scheme obtains the optimal configuration of the tracking area list, thus minimizing the total signalinoverhead.

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