DE-REGISTRATION METHOD IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20200084744A1

    公开(公告)日:2020-03-12

    申请号:US16685269

    申请日:2019-11-15

    摘要: An aspect of the present invention relates to a UE-initiated de-registration method by an AMF in a wireless communication system, and comprises the steps of: receiving, from UE, a de-registration request message that requests de-registration, wherein the de-registration request message includes de-registration type information and first access type information indicating a target access to which the de-registration is to be applied; requesting, when the UE has an established protocol data unit (PDU) session through the target access, an SMF to release the established PDU session; and transmitting a de-registration accept message to the UE depending on the de-registration type

    METHOD AND WIRELESS DEVICE FOR TRANSMITTING RRC MESSAGE WHEN USING CP CIOT EPS OPTIMIZATION

    公开(公告)号:US20190132889A1

    公开(公告)日:2019-05-02

    申请号:US16092951

    申请日:2017-01-09

    IPC分类号: H04W76/10 H04W4/70 H04W24/02

    摘要: Provided is a method for a wireless device for transmitting an RRC message according to one disclosure of the present specification. The method may comprise a step for an NAS stratum of the wireless device transmitting an NAS signaling request message to an AS layer to transmit the former to a network node. The NAS signaling request message can comprise therein an indication of one or both preferred or required plans from among the plans for optimizing the EPS for CIoT using a control plane (CP) or a user plane (UP). The method may comprise a step for the NAS stratum of the wireless device receiving, from the AS stratum, an NAS signaling acceptance message or NAS signaling rejection message from the network node.

    METHOD FOR TRANSMITTING MESSAGE AND USER EQUIPMENT

    公开(公告)号:US20190116519A1

    公开(公告)日:2019-04-18

    申请号:US16088056

    申请日:2017-03-24

    IPC分类号: H04W28/06

    摘要: When a non-access stratum (NAS) message is generated in an NAS layer of a user equipment, the NAS layer transfers the NAS message and type information to an access stratum (AS) layer of the user equipment. An AS message containing the NAS message is transmitted to a network. The type information indicates whether the NAS message is a first type message containing user data or a second type message without user data.

    METHOD AND TERMINAL FOR CREATING, MODIFYING, RELEASING SESSION IN NEXT-GENERATION MOBILE COMMUNICATION

    公开(公告)号:US20190069327A1

    公开(公告)日:2019-02-28

    申请号:US16075806

    申请日:2016-11-29

    IPC分类号: H04W76/10 H04W76/27

    摘要: One disclosure of the present specification provides a method for a control plane (CP) function entity creating a session, the CP function entity being in charge of managing a session in a next-generation mobile communication network. The method may comprise the steps of: receiving a connectivity request message from a terminal if the creation of a session is not included in a process by which the terminal attaches to a core network of the next-generation mobile communication; on the basis of information on the type of service to be provided to the terminal, deciding to create, for the terminal, a session that needs to be always-on, or in other words, always-connected; and transmitting, to the terminal, a connectivity completion message including information indicating the session that needs to be always-on, or in other words, always-connected.

    METHOD FOR INITIATING TRACKING AREA UPDATE, AND USER EQUIPMENT

    公开(公告)号:US20190045349A1

    公开(公告)日:2019-02-07

    申请号:US16074072

    申请日:2017-01-31

    IPC分类号: H04W8/02

    摘要: When a specific case occurs, user equipment can initiate a tracking area update (TAU) step by transmitting a TAU request. If the user equipment is using a control plane connection for the transport of user data when a radio resource control (RRC) connection failure occurs and there is no pending signaling or uplink user data, the specific case can be applied to a case in which it is indicated, to a network, that downlink data reception subsequent to the uplink data transmission is predicted.