Patent ID: 9363846
Filing Date: 2016-06-07
CPC Classification: H04W

Claim Text:
1. A method for routing traffic in a packet data network (PDN), the method comprising: determining, by a mobile device, whether the mobile device has an active data traffic session over an original PDN connection between the mobile device and a first PDN gateway, wherein the first PDN gateway corresponds to a cluster currently non-co-located with the mobile device; if so, determining, by the mobile device, that the active data traffic session over the original PDN connection requires IP address preservation; routing, by the mobile device, a first new data traffic session requiring IP address preservation over the original PDN connection; and routing, by the mobile device, a second new data traffic session not requiring IP address preservation over a subsequent PDN connection between the mobile device and a second PDN gateway, wherein the second PDN gateway corresponds to a cluster currently co-located with the mobile device.