Optimized Paging Cache Mappings for efficient location management

Abstract

Cellular IP maintains distributed cache for location management and routing purposes. Distributed paging cache coarsely maintains the position of idle mobile hosts in a service area. Cellular IP uses this paging cache to quickly and efficiently find idle mobile. It can accommodate a large number of users attached to the network without overloading the location management system. Though paging caches may be put in a few selected nodes only, those are considerably large databases. More paging caches result in less paging load in exchange for increased hardware cost. In this paper we present Optimized Paging Cache Mappings for efficient location management. It reduces the size of the paging cache and the paging-update packets. It results in saving hardware cost.