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OwnerBobby That Dao Ton, Tormod Hegdahl +1inventors
InventorsBobby That Dao Ton, Tormod Hegdahl, Lev Deich
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A GPRS Support Node (GGSN) has a plurality of user plane (data session) processing units (GTP-Us) for handling data sessions for Mobile Stations (MSs), a plurality of controlling units (GTP-C/s) for controlling the data sessions payloads, and a master data session control unit (GTP-C/m) dispatching data sessions requests to GTP-C/s. When a GTP-U goes down, the GTP-C/m detects the failure. If no spare GTP-U is available, the GTP-C/m removes internal connections related to the failed data sessions, and instructs all the GTP-C/s that controlled data sessions lost on the failed GTP-U to delete the PDP contexts of those sessions, and requests a Route update from the Routing Engine (RE). If a spare GTP-U is available, the GTP-C/m activates the spare GTP-U, and requests every GTP-C/s that controlled data sessions on the failed GTP-U to rebuild these sessions on the spare GTP-U unit. Following completion of the rebuild, it requests a Route update from the RE.
A method for releasing Packet Data Protocol (PDP) contexts relating to data sessions held by a data processing unit (GTP-U) of a Gateway General Packet Radio Service (GPRS) Support Node (GGSN) having a plurality of data processing units (GTP-Us), the method comprising the steps of:
A Gateway General Packet Radio Service (GPRS) Support Node (GGSN) comprising:
A method for replacing a failed data session processing unit (GTP-U) supporting one or more data sessions for mobile terminals on a Gateway General Packet Radio Service (GPRS) Support Node (GGSN), the method comprising the steps of:
A Gateway General Packet Radio Service (GPRS) Support Node (GGSN) comprising:
Dependencies are inferred from the claim text.