Patent ID: 9609567
Date: 2017-03-28
CPC Classifications: H04L,H04W

Claim:
1. A method for routing a data packet of a user equipment (UE) in a wireless communication network, the method comprising: establishing, by the UE, a packet data network (PDN) connection via a 3rd Generation Partnership Project (3GPP) cellular network; obtaining, by the UE from an Access Network Discovery and Selection Function (ANDSF) server, a routing rule including information on an access point name (APN) and a priority of the APN, the APN identifying a packet data network (PDN) connection; and performing, by the UE, an offload function by selecting a gateway via the 3GPP cellar network based on the priority of the APN, wherein the routing rule comprises identification information in the form of an IP 5-tuple allowing the UE to route the data packet, and wherein the form of an IP 5-tuple includes a source IP address, a source port number, a destination IP address, a destination port number and a protocol in use.