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    EFFICIENT PLMN SELECTION UPON AUTHENTICATION FAILURE FOR EACH NETWORK SLICE IN ROAMING NETWORK
    121.
    发明申请
    EFFICIENT PLMN SELECTION UPON AUTHENTICATION FAILURE FOR EACH NETWORK SLICE IN ROAMING NETWORK 有权

    公开(公告)号：US20220232507A1

    公开(公告)日：2022-07-21

    申请号：US17713103

    申请日：2022-04-04

    Applicant: LG ELECTRONICS INC.

    Inventor： Sunhee Kim ,  Sungduck Chun ,  Hyunsook Kim ,  Laeyoung Kim ,  Sangmin Park ,  Myungjune Youn

    IPC: H04W60/00 ,  H04W48/18

    Abstract: Provided are a method and device for efficient public land mobile network (PLMN) selection upon authentication failure for each network slice in a roaming network. A user equipment (UE) receives a registration rejection message from an access and mobility management function (AMF) of a first PLMN. The registration rejection message includes rejected network slice selection assistance information (NSSAI) including first single NSSAI (S-NSSAI) and cause value #62 for the rejected NSSAI. The UE: generates second requested NSSAI including second S-NSSAI on the basis that i) the UE does not have allowed NSSAI and configured NSSAI, and ii) default configured NSSAI includes the second S-NSSAI that is not included in the rejected NSSAI and corresponds to a network slice of which the UE requests registration; and transmits a second registration request message including the second requested NSSAI to the AMF of the first PLMN.

    COMMUNICATION METHOD FOR HANDLING NETWORK ERROR
    122.
    发明申请
    COMMUNICATION METHOD FOR HANDLING NETWORK ERROR 有权

    公开(公告)号：US20220217553A1

    公开(公告)日：2022-07-07

    申请号：US17600207

    申请日：2019-12-23

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyunsook Kim ,  Sungduck Chun ,  Laeyoung Kim ,  Sangmin Park ,  Myungjune Youn

    IPC: H04W24/04 ,  H04W8/08

    Abstract: One disclosure of the present specification provides a communication method, for handling a network error, performed by a terminal. The terminal can receive information relating to a second public land mobile network (PLMN) to which the terminal is subscribed from a base station in a first PLMN. The terminal can be connected to the first PLMN by means of the base station in the first PLMN on the basis of the information relating to the second PLMN. Information notifying of an error which has occurred in the second PLMN can be displayed on a display of the terminal.

    Method, user device, and network node for performing PDU session establishment procedure
    123.
    发明授权
    Method, user device, and network node for performing PDU session establishment procedure 有权

    公开(公告)号：US11356893B2

    公开(公告)日：2022-06-07

    申请号：US16959870

    申请日：2018-12-28

    Applicant: LG Electronics Inc.

    Inventor： Myungjune Youn ,  Laeyoung Kim ,  Taehun Kim ,  Jinsook Ryu ,  Sangmin Park

    IPC: H04W76/18 ,  H04W28/02 ,  H04W76/38 ,  H04W8/08 ,  H04W48/16

    Abstract: A method for transmitting, by user equipment, a PDU session establishment request includes: receiving a session management message based on an SSC mode from an SMF through an AMF in a state in which a back-off timer associated with a DNN-based congestion control is in operation, wherein the session management message is associated with a DNN to which the DNN based congestion control is applied; and transmitting a PDU session establishment request to the AMF for establishment of a new PDU session associated with the DNN on the basis of the session management message. The PDU session establishment request includes information for preventing rejection of the PDU session establishment request, and the information for preventing the rejection may be used to make the AMF ignore the DNN-based congestion control and transmit the PDU session establishment request to the SMF associated with the new PDU session.

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