公开(公告)号：US11622415B2

公开(公告)日：2023-04-04

申请号：US16838186

申请日：2020-04-02

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

IPC: H04W80/10 ,  H04W8/08 ,  H04W28/02

Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.

公开(公告)号：US10972956B2

公开(公告)日：2021-04-06

申请号：US16530152

申请日：2019-08-02

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Shang-Ru Mo

IPC: H04W40/02 ,  H04W48/12 ,  H04L12/813 ,  H04L29/06 ,  H04L12/725 ,  H04W28/02 ,  H04W28/12 ,  H04W36/00 ,  H04W36/14 ,  H04W68/02 ,  H04W76/27 ,  H04L29/08 ,  H04W28/04 ,  H04W8/18 ,  H04W36/08 ,  H04W48/18 ,  H04W84/04

Abstract: A method of QoS rule management with enhanced handling on QoS flow description is proposed. UE checks QoS configuration received from the network for QoS operation errors. When UE receives a QoS rule associated with a specific QFI but has no QoS flow description for the QFI, UE further determines whether the QoS rule is of a GBR QoS flow. If so, UE detects a QoS operation error. If the QoS rule is the default QoS rule, then UE releases the PDU session. If the QoS rule is not the default QoS rule, then UE either rejects a PDU session modification command that carries the QoS rule or deletes the QoS rule carried by a PDU session establishment accept with a 5GSM cause value indicating the QoS operation error.

公开(公告)号：US20200323028A1

公开(公告)日：2020-10-08

申请号：US16838186

申请日：2020-04-02

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

IPC: H04W80/10 ,  H04W28/02 ,  H04W8/08

Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.

公开(公告)号：US20200162958A1

公开(公告)日：2020-05-21

申请号：US16686868

申请日：2019-11-18

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Shang-Ru Mo

IPC: H04W28/02 ,  H04W76/10 ,  H04W76/30 ,  H04W80/10 ,  H04W56/00 ,  H04W88/02

Abstract: A method of handling insufficient resources in a user equipment (UE) during a PDU session establishment procedure is proposed. During a PDU session establishment procedure, UE sends a PDU SESSION ESTABLISHMENT REQUEST message to the network. UE then receives a PDU SESSION ESTABLISHMENT ACCEPT message from the network, the ACCEPT message carries various PDU session parameters including authorized QoS rules and QoS flows. If UE decides to reject the addition of the new authorized QoS flow description or the new authorized QoS rule due to lack of resources, UE may initiate a PDU session release procedure with 5G session management (5GSM) cause IE #26 “insufficient resources”. In an alternative embodiment, UE may synchronize with the network by sending a PDU session modification request message to delete certain QoS rules/flow descriptions with 5GSM cause IE #26 “insufficient resources”.

公开(公告)号：US20200154379A1

公开(公告)日：2020-05-14

申请号：US16680331

申请日：2019-11-11

Applicant: MediaTek Inc.

Inventor： Chien-Chun Huang-Fu ,  Shang-Ru Mo ,  Chi-Hsien Chen

IPC: H04W56/00 ,  H04W28/02 ,  H04W80/10 ,  H04W8/08 ,  H04W60/00 ,  H04W48/18

Abstract: Various examples and schemes pertaining to synchronization of quality of service (QoS) flows and rules in mobile communications are described. An apparatus establishes one or more protocol data unit (PDU) sessions with a wireless network. The apparatus then transmits a message to the wireless network to result in synchronization of status of at least one or more aspects related to QoS rules or QoS flows with respect to the one or more PDU sessions.

公开(公告)号：US20190313277A1

公开(公告)日：2019-10-10

申请号：US16371442

申请日：2019-04-01

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen

IPC: H04W28/02 ,  H04W76/20

Abstract: A method of defining ATtention (AT) commands for 5G QoS management is proposed. AT commands for modifying PDU sessions, creating and modifying QoS flows and QoS rules, and for querying QoS flow and QoS rule parameters are defined for 5G networks. Specifically, the AT command can be a set command for triggering a PDU session modification procedure and thereby creating and modifying QoS flows and QoS rules. For example, AT command +C5GQOS is introduced for creating and modifying QoS flows, AT command +C5GQOSRDP is introduced for retrieving QoS flow parameters, AT command +CGTFT can be reused for creating and modifying QoS rules, and AT command +CGTFTRDP can be reused for retrieving QoS rule parameters.

公开(公告)号：US20160113054A1

公开(公告)日：2016-04-21

申请号：US14884913

申请日：2015-10-16

Applicant: MEDIATEK INC.

Inventor： Chi-Hsien Chen ,  Po-Ying Chuang ,  Chien-Chun Huang-Fu

IPC: H04W76/02

CPC classification number: H04W36/28 ,  H04W36/0027 ,  H04W76/16 ,  H04W76/18 ,  H04W76/50

Abstract: A method of maintaining maximum number of bearers when maximum number of bearers reached is proposed. An enhanced SM/ESM procedure is proposed to synchronize between UE and network and to determine a precise maximum bearer number for protecting network resource and improving user experience. The UE determines the maximum bearer number based on a cause code contained in an SM reject message and updates the number under various network scenarios including system change.

Abstract translation: 提出了当达到最大承载数时保持最大承载数的方法。 提出了增强的SM / ESM程序，以在UE和网络之间进行同步，并确定用于保护网络资源和改善用户体验的精确最大承载数。 UE基于SM拒绝消息中包含的原因码确定最大承载数，并在包括系统变化在内的各种网络场景下更新该号码。

公开(公告)号：US20240057194A1

公开(公告)日：2024-02-15

申请号：US18224733

申请日：2023-07-21

Applicant: MEDIATEK INC.

Inventor： Yu-Hsin Lin ,  Chi-Hsien Chen ,  Yuna-Chieh Lin

IPC: H04W76/20 ,  H04W76/30 ,  H04W76/40

CPC classification number: H04W76/20 ,  H04W76/30 ,  H04W76/40

Abstract: A method for handling a PDU session status IE for MBS when the PDU session status IE indicates that the PDU session is inactive is provided. A UE receives a service accept or a service reject message from the network, which comprises a PDU session status IE indicating that a PDU session is inactive. Accordingly, the UE locally releases the PDU session if the PDU session is active, and determines if the PDU session is associated with one or more MBS sessions. If so, the UE locally leaves the associated MBS sessions. The PDU session can be a single access PDU session or a multiple access PDU session.

公开(公告)号：US20230300677A1

公开(公告)日：2023-09-21

申请号：US18105222

申请日：2023-02-02

Applicant: MEDIATEK INC.

Inventor： Chi-Hsien Chen

IPC: H04W28/08

CPC classification number: H04W28/0942 ,  H04W28/0958

Abstract: A network (NW) includes a wireless communication circuit and an access traffic steering, switching and splitting (ATSSS) policy decision circuit. The wireless communication circuit receives parameters from a user equipment (UE), and transmits a network-decided ATSSS policy to the UE, wherein the parameters do not include performance of a 3rd generation partnership project (3GPP) access and performance of a non-3GPP access. The ATSSS policy decision circuit performs ATSSS rule selection for generating the network-decided ATSSS policy, wherein the ATSSS rule selection is assisted by at least a portion of the parameters provided by the UE.

公开(公告)号：US20230300635A1

公开(公告)日：2023-09-21

申请号：US18109265

申请日：2023-02-14

Applicant: MEDIATEK INC.

Inventor： Chi-Hsien Chen

IPC: H04W24/02 ,  H04L41/16

CPC classification number: H04W24/02 ,  H04L41/16 ,  G06N3/091

Abstract: A user equipment (UE) includes an access performance prediction circuit and a wireless communication circuit. The access performance prediction circuit predicts performance of a 3rd generation partnership project (3GPP ) access and performance of a non-3GPP access. The wireless communication circuit takes action in response to predicted performance of the 3GPP access and predicted performance of the non-3GPP access.