Facilitating mobile communication for inbound roamers in a visited network using a gateway location register

摘要

The present invention provides a method for providing roaming services to one or more subscribers, correspondingly associated with the one or more Home Public Mobile Networks (HPMNs), while the one or more subscribers are registered with the Visited Public Mobile Network (VPMN). The method includes allocating a pool of Global Titles (GTs) to a Gateway Location Register (GLR) that is associated with the VPMN, where the pool of GTs corresponds to at least one of: one or more Visited Location Registers (VLRs) associated with the VPMN, one or more Serving General Packet Radio System (GPRS) Support Nodes (SGSNs) associated with the VPMN, one or more HPMNs, and one or more HLRs associated with an HPMN from the one or more HPMNs. The method further includes facilitating mobile communication of the one or more subscribers in the VPMN using the allocated pool of GTs. The GLR comnitinicates with each one of the one or more VLRs via a different one selected from the plurality of the GTs in the pool.