Patent ID: 9648646
Date: 2017-05-09
CPC Classifications: H04L,H04W

Claim:
1. A method for establishing a packet data network (PDN) connection, comprising: receiving, by a trusted wireless local area network access network (TWAN) device, a message carrying an access point name (APN) from a home subscriber server/an authentication, authorization and accounting (HSS/AAA) during a process of executing Extensible Authentication Protocol (EAP) authentication by a user equipment and the HSS/AAA, wherein the APN is obtained by the HSS/AAA from the user equipment during the EAP authentication before the APN is sent to the TWAN device by the HSS/AAA; obtaining, by the TWAN device, subscription information of the user equipment from the HSS/AAA; determining, by the TWAN device, a PDN gateway according to at least the APN and the subscription information; determining, by the TWAN device, a PDN type according to at least the subscription information; sending, by the TWAN device, a create session request message carrying the APN to the determined PDN gateway, wherein the create session request message further carries the PDN type; receiving, by the TWAN device, a create session response message carrying an internet protocol (IP) address from the PDN gateway; and sending, by the TWAN device, the IP address to the user equipment.