Short Message Service (SMS) Over SGs

摘要

A short message service (SMS) over SGs solution comprising an SGs application part (SGsAP) gateway. The SGsAP gateway is positioned between a mobile management entity (MME) on a long term evolution (LTE) network and a short message service center (SMSC)/home location register (HLR) on a circuit-switched (CS) network to permit SMS messages to be passed between the two domains. The SGsAP gateway performs centralized routing to home public land mobile networks (HPLMN) on the circuit-switched (CS) domain. An SGs interface is used to route messages between an SGsAP gateway and a mobile management entity (MME) on a long term evolution (LTE) network. The inventive solution does not require CS networks to support an SGs interface. In accordance with the principles of the present invention, a mobile management entity (MME) need only maintain a single SCTP association to a SGsAP gateway.

主权项

1. An SGs application part (AP) gateway, comprising:
a physical SGs interface; a physical SGs-to-MAP converter module to convert SGs protocol messages, received over said physical SGs interface, into GSM MAP protocol messages; a physical SS7 interface to output said GSM MAP protocol messages over said SS7 protocol interface; and a physical MAP-to-SGs converter module to convert SS7 protocol messages, received over said physical SS7 interface, into SGs protocol messages output over said physical SGs interface; wherein said SGs application part (AP) gateway enables a mobile device serviced by a long term evolution (LTE) network to send and receive circuit-switched (CS) short message service (SMS) messages without triggering a circuit-switched (CS) fallback.