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    POWER SAVING FEATURE ASSISTANCE INFORMATION IN 5GS AND EPS
    1.
    发明申请
    POWER SAVING FEATURE ASSISTANCE INFORMATION IN 5GS AND EPS 有权

    公开(公告)号：US20230135662A1

    公开(公告)日：2023-05-04

    申请号：US17963178

    申请日：2022-10-10

    Applicant: MEDIATEK INC.

    Inventor： Yuan-Chieh Lin ,  Chi-Hsien Chen

    IPC: H04W36/00 ,  H04W52/02 ,  H04W68/00

    Abstract: A method of applying power-saving feature assistance information for emergency PDU session or PDN connection for emergency bearer service associated with 3GPP access is provided. In 5GS, when an emergency PDU session (associated with 3GPP access) is successfully established after the UE received the Negotiated PEIPS assistance information IE during the last registration procedure, the UE does not use the PEIPS assistance information until the emergency PDU session is successfully moved out of 5GS 3GPP access. In EPS, when an PDN connection for emergency bearer service is successfully established after the UE received the Negotiated WUS assistance information IE during the last registration (Attach/TAU) procedure, the UE does not use the WUS assistance information until the PDN connection for emergency bearer service is successfully moved out of EPS.

    Session management in wireless communication system
    2.
    发明授权
    Session management in wireless communication system 有权

    公开(公告)号：US11445401B2

    公开(公告)日：2022-09-13

    申请号：US16795421

    申请日：2020-02-19

    Applicant: MEDIATEK INC.

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

    IPC: H04W28/12 ,  H04W28/02 ,  H04W80/10 ,  H04W76/25

    Abstract: A method can include receiving a non-access stratum (NAS) message for establishing or modifying a protocol data unit (PDU) session at a user equipment (UE) from a core network, determining whether there is a quality of service (QoS) flow description resulting from the establishment or modification of the PDU session that is associated with a guaranteed bit rate (GBR) QoS flow of the PDU session, and invalid, and when it is determined that there is the invalid QoS flow description associated with the GBR QoS flow of the PDU session, performing an error handling operation.

    5GSM Handling on Invalid PDU Session
    3.
    发明申请
    5GSM Handling on Invalid PDU Session 有权

    公开(公告)号：US20220078679A1

    公开(公告)日：2022-03-10

    申请号：US17529095

    申请日：2021-11-17

    Applicant: MEDIATEK INC.

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

    IPC: H04W36/00 ,  H04W76/10

    Abstract: A method of handling invalid PDU session during handover procedure between non-3GPP access and 3GPP access in a mobile communication network is proposed. A UE establishes a PDU session over a first RAT, and then tries to handover the PDU session from the first RAT to a second RAT. However, at the network side, the PDU session over the first RAT does not exist anymore and the network considers the PDU session to be invalid. The network thus sends a PDU session establishment reject message back to the UE, with a 5GSM status message cause value #54 indicating “PDU session does not exist”. At the UE side, the PDU session over the first RAT is still valid (e.g., not inactive). In order to resynchronize with the network, the UE performs a PDU session release procedure to release the PDU session over the first RAT.

    Handling QoS rules on QoS operation errors
    5.
    发明授权
    Handling QoS rules on QoS operation errors 有权

    公开(公告)号：US11115896B2

    公开(公告)日：2021-09-07

    申请号：US16829239

    申请日：2020-03-25

    Applicant: MEDIATEK INC.

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

    IPC: H04W40/12 ,  H04W28/24 ,  H04W80/02 ,  H04W84/04 ,  H04W28/02

    Abstract: A method of enhanced error handling for 5G QoS operations associated with a PDU session is proposed. A QoS operation can be received via a PDU session modification procedure. In one example, the QoS operation is to create a new QoS rule for a PDU session, however, there is an existing QoS rule having the same QoS rule ID (QRI). The UE detects whether the QoS operation will causing the PDU session have no default QoS rule or have more than one default QoS rules. If the existing QoS rule is a default QoS rule, or if the new QoS rule have a default QoS rule (DQR) indication bit set to be true, then the UE rejects the QoS operation and indicates a QoS operation error to the network.

    AT Commands for 5G Session Management
    7.
    发明申请
    AT Commands for 5G Session Management 审中-公开

    公开(公告)号：US20190313276A1

    公开(公告)日：2019-10-10

    申请号：US16371416

    申请日：2019-04-01

    Applicant: MEDIATEK INC.

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

    IPC: H04W28/02 ,  H04W48/18 ,  H04W80/10

    Abstract: A method of defining ATtention (AT) commands for 5G session management operations is proposed. In one example, the AT command can be a set command for configuring a PDU session establishment procedure. Additional 5G parameters including PDU session ID, Single-Network Slice Selection Assistance Information (S-NSSAI), Service and Session Continuity (SSC) mode, access type, and Reflective QoS (RQ) indication are defined for AT command +CGDCONT to configure the PDU session. In another example, the AT command can be a read command for querying PDU session and QoS flow parameters. Additional 5G parameters including PDU session ID (PSI), QoS flow ID (QFI), S-NASSI, SSC mode, access type, and RQ timer are defined for AT command +CGCONTRDP or +CGSCONTRDP.

    ENHANCEMENT OF FEATURE SUPPORT AFTER INTERWORKING
    10.
    发明公开
    ENHANCEMENT OF FEATURE SUPPORT AFTER INTERWORKING 审中-公开

    公开(公告)号：US20230209654A1

    公开(公告)日：2023-06-29

    申请号：US18117390

    申请日：2023-03-03

    Applicant: MEDIATEK INC.

    Inventor： CHIEN-CHUN HUANG-FU ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

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

    CPC classification number: H04W80/10 ,  H04W8/08 ,  H04W28/0263 ,  H04W28/0247

    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.

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