Patent ID: 9298560
Filing Date: 2016-03-29
CPC Classification: G06F,H04L,H04W

Claim Text:
1. A method for monitoring General Packet Radio Service (GPRS) Tunneling Protocol (GTP) sessions in a mobile communication network having a monitoring device, the method comprising the steps of: monitoring, by the monitoring device, a plurality of subscriber GTP sessions; storing recovery parameters related to the subscriber GTP sessions and subscribers associated therewith in records in a database in the monitoring device, wherein the recovery parameters are associated with initial session data for each subscriber GTP session; upon an outage in monitoring, correlating downlink tunnel endpoint identifier (TEID) parameters associated with subsequent session data with uplink TEID parameters associated with initial session data when the subsequent session data and the initial session data corresponds to the same subscriber GTP session; restarting the monitoring device to determine restart parameters associated with existing subscriber GTP sessions and subscribers associated therewith in the records in the database wherein the restart parameters are associated with the subsequent session data for each subscriber GTP session; and before attempting to process any packets, when the correlation is successful, associating and incorporating the subsequent session data with the initial session data based upon comparing the recovery parameters with the restart parameters so that session data resulting from monitoring is all properly assigned to a correct subscriber.