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    Session management in wireless communication system
    1.
    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.

    MUSIM IMSI OFFSET VALUE HANDLING FOR PAGING TIMING COLLISION CONTROL
    4.
    发明申请
    MUSIM IMSI OFFSET VALUE HANDLING FOR PAGING TIMING COLLISION CONTROL 有权

    公开(公告)号：US20230034780A1

    公开(公告)日：2023-02-02

    申请号：US17848281

    申请日：2022-06-23

    Applicant: MEDIATEK INC.

    Inventor： Yuan-chieh Lin ,  Yu-Chieh Tien ,  Pan-Yen Chiang

    IPC: H04W68/00 ,  H04W8/08

    Abstract: A method of handling (alternative) IMSI value for MUSIM UEs supporting paging timing collision control in an EPS network is proposed. For a MUSIM UE and EPS supporting paging timing collision control, the MUSIM UE and the network can request and negotiate an IMSI offset for the IMSI value on one of the USIM card through a TAU or ATTACH procedure. When lower layer failure occurs, the network may not successfully receive a TRACKING AREA UPDATE COMPLETE (or ATTACH COMPLETE) message from the UE, and therefore the network may not know which IMSI value UE will use. Accordingly, the network needs to use both possible (alternative) IMSI values when deriving paging timing for the UE until one of the (alternative) IMSI values is considered invalid.

    Enhanced procedure transaction ID handling
    6.
    发明授权
    Enhanced procedure transaction ID handling 有权

    公开(公告)号：US11006478B2

    公开(公告)日：2021-05-11

    申请号：US16453085

    申请日：2019-06-26

    Applicant: MEDIATEK INC.

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

    IPC: H04W80/10 ,  H04W76/11 ,  H04W76/25 ,  H04W76/30 ,  H04W76/18

    Abstract: A method for Procedure Transaction Identity (PTI) exception handling on protocol data unit (PDU) session modification and establishment procedure is proposed. If a UE receives a PDU SESSION MODIFICATION COMMAND message in which the PTI value is an assigned value that does not match any PTI in use, the UE stays in the current 5GSM state and sends a 5GSM STATUS message including 5GSM cause #47 “PTI mismatch”, and the network will send another COMMAND message with the correct PTI value. If the UE receives a PDU SESSION ESTABLISHMENT ACCEPT or REJECT message in which the PTI value is an assigned value that does not match any PTI in use, the UE responds with a 5GSM STATUS message including 5GSM cause #47 “PTI mismatch”, and the network will send another ACCEPT or REJECT message with the correct PTI value.

    Enhanced Procedure Transaction ID (PTI) Error Handling
    7.
    发明申请
    Enhanced Procedure Transaction ID (PTI) Error Handling 审中-公开

    公开(公告)号：US20200314187A1

    公开(公告)日：2020-10-01

    申请号：US16835442

    申请日：2020-03-31

    Applicant: MEDIATEK INC.

    Inventor： Chien-Chun Huang-Fu ,  Yu-Chieh Tien

    IPC: H04L29/08 ,  H04W12/06 ,  H04W76/27 ,  H04W36/14 ,  H04W76/10

    Abstract: A method for Procedure Transaction Identity (PTI) error handling on 5G Session Management (5GSM) procedures is proposed. If a User Equipment (UE) receives a PDU SESSION AUTHENTICATION COMMAND or PDU SESSION AUTHENTICATION RESULT message in which the PTI value is an assigned value, the UE transmits a 5GSM STATUS message including 5GSM cause #81 “invalid PTI value”. If the UE receives a PDU SESSION ESTABLISHMENT ACCEPT or REJECT message, a PDU SESSION MODIFICATION COMMAND or REJECT message, or a PDU SESSION RELEASE COMMAND or REJECT message in which the PTI value is an unassigned value, the UE ignores the received message. If the UE receives any 5GSM message in which the PTI value is a reserved value, the UE ignores the received 5GSM message.

    Enhanced procedure transaction ID (PTI) error handling
    9.
    发明授权
    Enhanced procedure transaction ID (PTI) error handling 有权

    公开(公告)号：US11310320B2

    公开(公告)日：2022-04-19

    申请号：US16835442

    申请日：2020-03-31

    Applicant: MEDIATEK INC.

    Inventor： Chien-Chun Huang-Fu ,  Yu-Chieh Tien

    IPC: H04L29/08 ,  H04W76/10 ,  H04W76/27 ,  H04W36/14 ,  H04W12/06 ,  H04L67/14 ,  H04L69/322

    Abstract: A method for Procedure Transaction Identity (PTI) error handling on 5G Session Management (5GSM) procedures is proposed. If a User Equipment (UE) receives a PDU SESSION AUTHENTICATION COMMAND or PDU SESSION AUTHENTICATION RESULT message in which the PTI value is an assigned value, the UE transmits a 5GSM STATUS message including 5GSM cause #81 “invalid PTI value”. If the UE receives a PDU SESSION ESTABLISHMENT ACCEPT or REJECT message, a PDU SESSION MODIFICATION COMMAND or REJECT message, or a PDU SESSION RELEASE COMMAND or REJECT message in which the PTI value is an unassigned value, the UE ignores the received message. If the UE receives any 5GSM message in which the PTI value is a reserved value, the UE ignores the received 5GSM message.

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