公开(公告)号：US11076450B2

公开(公告)日：2021-07-27

申请号：US16435737

申请日：2019-06-10

Applicant: MEDIATEK Inc.

Inventor： Sheng-Kai Chang ,  Po-Yu Liang ,  Jen-Chih Chang

IPC: H04W88/16 ,  H04L29/06 ,  H04W12/08 ,  H04W4/06 ,  H04W12/033 ,  H04W12/40

Abstract: The invention provides method and associated user equipment for improving versatility of a cellular network in a network system. The network system may have a packet core which may include a security gateway for facilitating an unlicensed network to interwork with the packet core. The method may include: by a user equipment, accessing a multimedia subsystem via the security gateway over the cellular network, instead of the unlicensed network.