METHOD FOR MANAGING PDU SESSION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME

    公开(公告)号:US20210211960A1

    公开(公告)日:2021-07-08

    申请号:US16065120

    申请日:2018-01-09

    Abstract: It is disclosed a method for managing a PDU session in a wireless communication system and an apparatus for supporting the same. Particularly, a method for performing handover of a User Equipment (UE) performed by a source Radio Access Network (RAN) that includes a processor, a memory and a communication module in a wireless communication system may include determining to initiate handover to a target RAN; and transmitting a Handover Required message to a source Access and Mobility Management Function (AMF), and the handover is a handover in a case that there is no interface between the RANs or AMF change is required, and the Handover Required message includes a PDU session Identifier (ID) of an activated Protocol Data Unit (PDU) session.

    METHOD FOR UPDATING LADN INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20210084569A1

    公开(公告)日:2021-03-18

    申请号:US17054683

    申请日:2019-01-30

    Abstract: A method for updating local access data network (LADN) information by an access and mobility management function (AMF) in a wireless communication system is disclosed. The method includes, based on an update occurring in the LADN information for a LADN service configured for a user equipment (UE), receiving the updated LADN information, the updated LADN information including information on an updated LADN service area and information on an updated LADN data network name (DNN); and transmitting the updated LADN information to the UE, wherein the AMF is determined based on the updated LADN service area.

    METHOD OF PROCESSING ESTABLISHMENT OF MA PDU SESSION, AND AMF NODE AND SMF NODE

    公开(公告)号:US20210037585A1

    公开(公告)日:2021-02-04

    申请号:US16967688

    申请日:2019-02-11

    Abstract: 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 AND USER EQUIPMENT FOR INITIATING SERVICE REQUEST PROCEDURE

    公开(公告)号:US20200280948A1

    公开(公告)日:2020-09-03

    申请号:US16875316

    申请日:2020-05-15

    Abstract: A disclosure in the present specification provides a method for user equipment initiating a service request procedure. The method includes a step of the UE receiving a paging message. The UE may be registered to both of a 3rd generation partnership project (3GPP) access and a non-3GPP access within the same PLMN. The paging message may include access type information that is used so as to indicate the non-3GPP access. The method may include a step of initiating a UE triggered service request procedure. The UE triggered service request procedure may be initiated by transmitting a service request message including a list of permitted protocol data unit (PDU) sessions. The service request message may include an empty list of the permitted PDU sessions if there is no PDU sessions that can be reactivated in the 3GPP access.

    Method for applying reflective quality of service in wireless communication system, and device therefor

    公开(公告)号:US20200275302A1

    公开(公告)日:2020-08-27

    申请号:US16064386

    申请日:2017-09-22

    Abstract: In an aspect of the present invention, a method for a user equipment (UE) to perform reflective quality of service (QoS) in a wireless communication system may include the steps of receiving a downlink packet from a network, wherein the downlink packet is a packet to which the application of the reflective QoS is indicated; deriving a QoS rule based on the downlink packet; applying a QoS marking of the downlink packet to an uplink packet using the QoS rule and transmitting the uplink packet to the network; and restarting a timer associated with the QoS rule when the downlink packet is received before the timer expires.

    METHOD INTERLAYER INTERACTION METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20200163145A1

    公开(公告)日:2020-05-21

    申请号:US16496193

    申请日:2018-03-20

    Abstract: According to an aspect of the present invention, a method for transporting a non-access stratum (NAS) message of an access and mobility management function (AMF) in a wireless communication system may include: receiving, from a user equipment (UE), an uplink (UL) NAS message including a session management (SM) message for a request related to a protocol data unit (PDU) session; transporting, to a predetermined second Session Management Function (SMF), the SM message if it is determined that it is impossible to route the SM message to a first SMF as a transport target of the SM message; receiving, from the second SMF, an SM rejection message for the SM message; and transmitting, to the UE, a downlink (DL) NAS message including the SM rejection message.

    METHOD FOR SUPPORTING UE MOBILITY IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20190274076A1

    公开(公告)日:2019-09-05

    申请号:US16344736

    申请日:2017-02-27

    Abstract: Provided are a method for supporting UE mobility in a wireless communication system and a device therefor. Specifically, the method for supporting mobility of a user equipment (UE) by a source access node in a wireless communication system, includes transmitting, to the UE, a measurement configuration instructing to include capability information regarding tunneling models of neighbor access nodes in a measurement report receiving, from the UE, the measurement report including capability information regarding the tunneling models of the neighbor access nodes and determining a target access node to which the UE is to perform handover on the basis of the measurement report.

    METHOD AND USER EQUIPMENT FOR CONNECTING BY MEANS OF PLURALITY OF ACCESSES IN NEXT GENERATION NETWORK

    公开(公告)号:US20190208562A1

    公开(公告)日:2019-07-04

    申请号:US16327724

    申请日:2017-07-31

    Abstract: A method for a user equipment (UE) connecting to a network includes: if second connection is to be executed by means of a second access, determining whether or not first connection has been previously executed by means of a first access; and, if the first connection by means of the first access has been executed and the second connection by means of the second access is determined to be an addition, transmitting a connection request message comprising identification information of a control plane (CP) function node. The identification information of the control plane (CP) function node could have been obtained during the first connection by means of the first access. Both the first connection by means of the first access and the second connection by means of the second access can be managed by means of the control plane (CP) function node.

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