Patent ID: 9036631
Filing Date: 2015-05-19
Classification: H04L,H04M

Abstract:
1. A method performed by a policy and charging rules node (PCRN) in a packet switching network, the method comprising steps of: receiving at the PCRN from an adjacent network node, a Diameter Credit Control Request (CCR) message; determining whether the request message does not include an AN-GW-Address; determining whether the request message includes a SGSN-Address; and responsive to the request message including an SGSN-Address and the request message not including an AN-GW-Address, storing within the PCRN for the duration of the associated IP-CAN session, an indication that said adjacent network node is connected directly to a Serving General Packet Radio Service (GPRS) Support Node (SGSN) node via a Gn/Gp interface; wherein said adjacent network node comprises a Packet Data Network Gateway (P-GW) node or a Gateway GPRS Support Node (GGSN).