COMMUNICATION RELATED TO MULTIPLE USIMS

    公开(公告)号:US20230045765A1

    公开(公告)日:2023-02-09

    申请号:US17790586

    申请日:2020-12-11

    Abstract: One disclosure of the present specification provides a method by which a first network node performs communication on the basis of multiple USIMs. The method can comprise: receiving, from UE, a registration request message including MT service configuration information; receiving, from the UE, information informing that the UE leaves a first network including the first network node; receiving, from a second network node, information related to downlink data about the UE; and transmitting a paging message or a failure indication on the basis of the MT service configuration information and the information related to the downlink data.

    EFFICIENT PLMN SELECTION UPON AUTHENTICATION FAILURE FOR EACH NETWORK SLICE IN ROAMING NETWORK

    公开(公告)号:US20230022888A1

    公开(公告)日:2023-01-26

    申请号:US17954866

    申请日:2022-09-28

    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.

    Method and device for selecting public land mobile network (PLMN) in wireless communication system

    公开(公告)号:US11540246B2

    公开(公告)日:2022-12-27

    申请号:US17272630

    申请日:2019-09-02

    Abstract: According to an embodiment of the present invention, a method for selecting a public land mobile network (PLMN) by a user equipment (UE) in a wireless communication system comprises: in a manual network selection mode, displaying one or more first PLMN items corresponding to one or more first PLMNs on a display of the UE; when an input for a second PLMN item among the one or more PLMN items is received, controlling a communication module of the UE to attempt to register the UE on a second PLMN corresponding to the second PLMN item; when the registration on the second PLMN fails, providing access to restricted local operator service (RLOS), and displaying, on the display, one or more third PLMN items corresponding to one or more third PLMNs included in an RLOS PLMN list configured in a universal subscriber identity module (USIM) of the UE; and when an input for a fourth PLMN item among the one or more third PLMN items is received, controlling the communication module to initiate registration for access to the RLOS of a fourth PLMN corresponding to the fourth PLMN item, whereby it is possible to use not only excellent but also highly secure RLOS.

    Method and apparatus for determining supportable service in wireless communication system

    公开(公告)号:US11438753B2

    公开(公告)日:2022-09-06

    申请号:US17256739

    申请日:2019-07-02

    Inventor: Sungduck Chun

    Abstract: One aspect of the present disclosure provides a method for a first user equipment (UE) to identify a supportable service in a wireless communication system, the method including transmitting, to a second UE, a request that is related to a first service and includes identification information related to the first UE, receiving, from the second UE, a response to the request related to the first service, and transmitting first service data to the second UE based on the response, and thus a V2X UE can stably provide ultra-low latency, enhanced mobile broadband, and massive connectivity required in the 5G communication system.

    METHOD FOR TRANSMITTING AND RECEIVING PAGING SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20220030548A1

    公开(公告)日:2022-01-27

    申请号:US17297711

    申请日:2019-12-02

    Inventor: Sungduck Chun

    Abstract: A method of receiving, by a user equipment (UE), a paging signal in a wireless communication system is disclosed. More specifically, the UE performs a registration to a plurality of networks, obtains a plurality of monitoring time points that has to check whether a paging message is received from each of the plurality of networks, when at least some of the plurality of monitoring time points overlap, transmits, to a first network, a change request of a first monitoring time point that has to check whether a first paging message is received from the first network of the plurality of networks, receives, from the first network, configuration information related to the request, and updates the first monitoring time point based on the configuration information.

    Method for performing registration with network in wireless communication system and device therefor

    公开(公告)号:US11212721B2

    公开(公告)日:2021-12-28

    申请号:US16755549

    申请日:2018-10-12

    Inventor: Sungduck Chun

    Abstract: Disclosed are a method for performing registration with a network in a wireless communication system and a device therefor. Specifically, a method for performing registration with a core network by a user equipment (UE) in a wireless communication system may comprise the steps of: transmitting a registration request message to a first core network in a first cell; receiving a registration rejection message from the first core network in the first cell; discovering a second core network which is of a different type from the first core network and is supported in the first cell; when the second core network supported in the first cell is discovered, determining whether the UE supports the second core network; and when the UE supports the second core network, performing a registration procedure with the second network in the first cell.

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