US Patent No. 10,194,470

METHOD AND DEVICE FOR ESTABLISHING VIRTUAL BEARER FOR PDN CONNECTION ESTABLISHED THROUGH WI-FI LINK IN WIRELESS COMMUNICATION SYSTEM


Patent No. 10,194,470
Issue Date January 29, 2019
Title Method And Device For Establishing Virtual Bearer For Pdn Connection Established Through Wi-fi Link In Wireless Communication System
Inventorship Heejeong Cho, Seoul (KR)
Hyunsoo Ko, Seoul (KR)
Hyeyoung Choi, Seoul (KR)
Ilmu Byun, Seoul (KR)
Kungmin Park, Seoul (KR)
Assignee LG Electronics Inc., Seoul (KR)

Claim of US Patent No. 10,194,470

1. A method for generating a virtual bearer by a mobility management entity (MME) in a wireless communication system, the method comprising:obtaining context information from any one of a home subscriber server (HSS), an evolved packet data gateway (ePDG), or a trusted wireless local area network (WLAN) access network (TWAN), wherein the context information, which includes at least one of an access point name (APN), a PDN gateway (PDN GW) identity (ID), and a quality of service (QoS) parameter, is used for a packet data network (PDN) connection generated through a Wi-Fi network;
transmitting a create session request to a serving gateway (S-GW) or a PDN gateway (P-GW) when there is no PDN connection in a cellular network mapped to the PDN connection, and there is no default bearer in the cellular network, wherein the create session request includes the context information;
generating a virtual bearer in the cellular network based on the create session request; and
transmitting establishment information for the virtual bearer to a user equipment (UE), wherein an uplink/downlink (UL/DL) bearer between the UE and the P-GW, for data to be transmitted, is generated based on the establishment information.