公开(公告)号：US20180132141A1

公开(公告)日：2018-05-10

申请号：US15808593

申请日：2017-11-09

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Guillaume Sebire ,  Yu-Syuan Jheng

IPC: H04W36/00 ,  H04L29/06 ,  H04W36/04 ,  H04W36/14 ,  H04W36/30

CPC classification number: H04W36/0022 ,  H04L65/1016 ,  H04L65/1063 ,  H04L65/1083 ,  H04W36/04 ,  H04W36/14 ,  H04W36/30 ,  H04W88/08

Abstract: A network-based solution of supporting IP multimedia subsystem (IMS) call setup in a next generation system (5GS) is proposed. During an attach or registration area update procedure, a serving base station sends an indication to a UE indicating whether IMS voice over PS session is supported or not. Upon receipt of the indication that IMS VoPS is supported, the UE triggers an IMS registration procedure. However, when an MO/MT call happens, the network determines that the UE may be in conditions where voice service is not supported because the network is not able to provide a successful IMS VoPS over the current serving cell connected to 5G core network. The network then triggers a RAT change or a EPS fallback procedure such that the UE is handover to a target cell that supports IMS VoPS.

公开(公告)号：US12022386B2

公开(公告)日：2024-06-25

申请号：US18302296

申请日：2023-04-18

Applicant: MEDIATEK INC.

Inventor： Chia-Lin Lai ,  Chien-Chun Huang-Fu ,  Yuan-Chieh Lin ,  Guillaume Sebire

IPC: H04W48/18 ,  H04W48/16 ,  H04W84/04

CPC classification number: H04W48/18 ,  H04W48/16 ,  H04W84/042

Abstract: Aspects of the disclosure provide methods and apparatuses. The method can include receiving, at a user equipment (UE), system information broadcast from one or more base stations which may be shared by one or more PLMNs and/or one or more SNPNs, the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of a HSP network is supported. The UE can be configured with subscription information of the HSP network. The subscription information can include the HSP subscription and a selection list that includes one or more candidate networks each represented by an SNPN identifier. The method can further include responsive to the system information, selecting a network from the selection list according to a priority order of the candidate networks, and accessing the network selected from the selection list using the HSP subscription.

公开(公告)号：US10542454B2

公开(公告)日：2020-01-21

申请号：US15892501

申请日：2018-02-09

Applicant: MEDIATEK INC.

Inventor： Yu-Syuan Jheng ,  Pavan Nuggehalli ,  Guillaume Sebire ,  Chien-Chun Huang-Fu ,  Per Johan Mikael Johansson

IPC: H04W28/02 ,  H04L12/851 ,  H04L29/08 ,  H04W28/26 ,  H04L12/813

Abstract: Aspects of the disclosure provide a method for reflective quality of service (QoS) control and management at a user equipment (UE). The method can include creating a derived QoS rule belonging to a session and having a QoS flow identifier (QFI). The derived QoS rule includes a precedence value that is set to one of a precedence value associated with a session identifier (ID) of the session received from a core network (CN) of a wireless communication system during a session establishment procedure for establishing the session, a precedence value associated with the QFI received from the CN during the session establishment procedure for establishing the session or when a downlink QoS flow having the QFI is added to the session, or a precedence value that is defined by an operator of the wireless communication system.

公开(公告)号：US10477438B2

公开(公告)日：2019-11-12

申请号：US16191648

申请日：2018-11-15

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Guillaume Sebire ,  Yu-Syuan Jheng

IPC: H04W36/00 ,  H04L29/06 ,  H04W36/04 ,  H04W36/30 ,  H04W36/14 ,  H04W88/08 ,  H04W60/00

Abstract: A network-based solution of supporting IP multimedia subsystem (IMS) call setup in a next generation system (5GS) is proposed. During an attach or registration area update procedure, a serving base station sends an indication to a UE indicating whether IMS voice over PS session is supported or not. Upon receipt of the indication that IMS VoPS is supported, the UE triggers an IMS registration procedure. However, when an MO/MT call happens, the network determines that the UE may be in conditions where voice service is not supported because the network is not able to provide a successful IMS VoPS over the current serving cell connected to 5G core network. The network then triggers a RAT change or a EPS fallback procedure such that the UE is handover to a target cell that supports IMS VoPS.