Patent ID: 7366945
Filing Date: 2008-04-29
Classification: H04W

Abstract:
1. A method for backup of Home Location Register (HLR), comprising: configuring a common HLR as a disaster recovery center HLR which is used to backup multiple active HLRs, then establishing network connections between each of the multiple active HLRs and said disaster recovery center HLR, and then loading subscriber data of each of the multiple active HLRs to said disaster recovery center HLR through uniform-formatted text files which describe standard services of the protocol in a standard format; During normal operation, synchronizing varied data of each of the multiple active HLRs to said disaster recovery center HLR; If one HLR of the multiple active HLRs fails, forwarding the signaling, which is sent to the one HLR of the multiple active HLRs, to the disaster recovery center HLR to process through modifying route configuration of a corresponding service switching point; recovering the data of the one HLR of the multiple active HLRs by said disaster recovery center HLR through uniform-formatted text files after the one HLR of the multiple active HLRs recovers, redirecting the signaling to the one HLR of the multiple active HLRs from said disaster recovery center HLR through modifying route configuration of the corresponding service switching point after the data of the one HLR of the multiple active HLRs and the disaster recovery center HLR is consistent.