摘要： 提出了一种恢复CDMA2000系统移动数据库不一致的改进机制，该机制是基于定期备份移动数据库、发送信令以及定期扫描VLR数据库。为实现这种改进机制，该文合理组织数据库结构，提出了一种使HLR数据库能实时标记两次备份期间用户发生变化的服务VLR的算法，并在故障恢复后，向所有标记的VLR发送不可靠漫游指令。

关键词: 移动数据库, 数据库备份, 归属位置寄存器, 拜访位置寄存器

Abstract: This paper proposes an improved mobility databases failure recovery scheme for CDMA2000 system, which is based on periodically backing up mobility database, sending signals and periodically scanning VLR databases. To implement the proposed scheme, it reasonably structures the mobility databases and proposes an algorithm for an HLR to identify those VLRs in which there have another new MSs moved in or out since the instant of the latest HLR backing up. After the system failure, the HLR will send unreliable roaming data directive messages to all of the identified VLRs to get the correct location information of those new MSs.

中图分类号: 

• TN929.533