Patent ID: 9736868
Date: 2017-08-15
CPC Classifications: H04L,H04W

Claim:
1. A second packet data network gateway (P-GW), located in a second network for supporting user plane data to terminal devices in a wireless communications system that additionally comprises a first network having a first P-GW, operably couplable to the second P-GW; the second P-GW comprising a processor located on an integrated circuit and arranged to: check a destination internet protocol, IP, address of received packets from the first P-GW in order to determine whether local context information exists for the destination IP address identified in the received packets, and in response thereto: discard received packets where local context information does not exist for those received packets; and when local context information does exist for those received packets and the received packets are destined for the destination IP address of a terminal device served with user plane data: extract, from said received packets, one or more properties from a group of: a) one or more source port number(s); and b) one or more protocol type packet properties; and invoke a bearer mapping function within the second network on any resultant data to route the resultant data to the destination IP address of the terminal device served by the second P-GW based on at least one from a group of: one or more source internet protocol, IP, address(es), one or more destination IP address(es), one or more source port number(s), one or more destination port number(s), one or more protocol type packet properties, packet analysis on said received packets.