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

    IPC分类号: H04W60/00

    摘要: 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

    IPC分类号: H04W60/00 H04W48/18

    摘要: 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

    摘要: 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 of processing establishment of MA PDU session, and AMF node and SMF node

    公开(公告)号:US11528763B2

    公开(公告)日:2022-12-13

    申请号:US16967688

    申请日:2019-02-11

    摘要: A disclosure of the present specification provides a method for processing establishment of a protocol data unit (PDU) session by an access and mobility management function (AMF) node. The method may include a step of receiving a PDU session establishment request message from a user equipment (UE) via either a first access or a second access. The PDU session establishment request message may include information indicative of a multi access (MA) PDU session. The method may include a step of selecting a session management function (SMF) node supporting the MA PDU session on the basis of the information indicative of the MA PDU session. The method may include a step of sending the PDU session establishment request message to the SMF node supporting the MA PDU session.

    Method for transmitting or receiving signal in wireless communication system and device for the same

    公开(公告)号:US11153930B2

    公开(公告)日:2021-10-19

    申请号:US16279500

    申请日:2019-02-19

    摘要: A method for transmitting or receiving a signal of a Session Management Function (SMF) in a wireless communication system comprises receiving a reject message for a message related to an activation command of a Protocol Data Unit (PDU) session, by the SMF, from a User Equipment (UE); requesting, to an AMF, an Access Management Function (AMF) information on a non-3GPP connection state modification of the UE by the SMF; receiving a message indicating that a non-3GPP connection state of the UE has been changed, by the SMF, from the AMF; and transmitting the message related to the activation command of the PDU session, which includes a new P-CSCF(Proxy-Call Session Control Function) list, by the SMF, to the UE, wherein the message indicating that the non-3GPP connection state of the UE has been changed indicates that a non-3GPP access of the UE has been changed from CM-IDLE to CM-connected.

    Method for PDU session establishment procedure and AMF node

    公开(公告)号:US11109280B2

    公开(公告)日:2021-08-31

    申请号:US16535623

    申请日:2019-08-08

    摘要: Provided is a method for handling a packet data unit (PDU) session establishment procedure. The method may performed by an access and mobility management function (AMF) node and comprise: determining whether to reject a PDU session establishment request. The determination may be performed if the PDU session establishment request includes an existing PDU session identifier. Based on the existing PDU session identifier, an identifier of a session management function (SMF) node may be acquired. The PDU session establishment request may be accepted, if it is determined based the identifier of the SMF node that the SMF node and the AMF node belong to a same PLMN. The PDU session establishment request may be further accepted, if it is determined based the identifier of the SMF node that the SMF node belongs to a HPLMN. The PDU session establishment request may be rejected, if it is determined based the identifier of the SMF node that the SMF node and the AMF node do not belong to the same PLMN or the SMF node does not belong to the HPLMN.

    Method of operating UE in relation to release of PC5 unicast link in wireless communication system

    公开(公告)号:US11096239B2

    公开(公告)日:2021-08-17

    申请号:US17085339

    申请日:2020-10-30

    摘要: A method of operating a first user equipment (UE) in a wireless communication system is disclosed. The method includes releasing a first PC5 radio resource control (RRC) connection for which sidelink (SL) radio link failure (RLF) has been declared among a plurality of PC5 RRC connections by the first UE, informing a PC5 unicast link associated with the first RRC connection by a PC5 unicast link identifier (ID) to a vehicle-to-everything (V2X) layer of the first UE by an access stratum (AS) layer of the first UE, and releasing the PC5 unicast link based on the PC5 unicast link ID by the V2X layer of the first UE. The PC5 unicast link ID indicates the PC5 unicast link for which the SL RLF has been declared and the first RRC connection has been released.