Terminal aided k-location tracking with distributed HLR database for mobility management

In the third generation of mobile communication system, the home location register (HLR) bottleneck problem will be more serious due to the many emerging new services. We propose the "terminal aided k-location tracking with distributed HLR database" method for mobility management. The TA k-LT can reduce HLR registration load greatly with the help of the terminal and the vehicle location register (VLR), and the distributed HLR database can decrease the HLR call delivery load dramatically. Besides, the TA k-LT can overcome the multiple HLR registration update problem of the distributed HLR database. As compared with the traditional distributed method, analysis shows this combination method can reduce both system mobility management cost and the number of replicated databases, hence save the system device cost.