Method for Applying Reflective Quality of Service in Wireless Communication System, and Device Therefor

    公开(公告)号:US20210014721A1

    公开(公告)日:2021-01-14

    申请号:US17033620

    申请日:2020-09-25

    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 FOR TRANSMITTING AND RECEIVING SIGNAL RELATED TO HANDOVER FROM 5GS TO EPS IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20200275331A1

    公开(公告)日:2020-08-27

    申请号:US16650831

    申请日:2018-09-28

    Abstract: An embodiment of the present invention relates to a method for an access and mobility management function (AMF) transmitting and receiving a signal related to a handover from 5GS to an evolved packet system (EPS) of a user equipment (UE) in a wireless communication system the method comprising a step in which the AMF receives a handover required message from a next-generation radio access network (NG-RAN); a step in which the AMF requests a session management (SM) context to a packet data network gateway+session management function (PGW+SMF); a step of receiving an SM context from the PGW+SMF; and a step in which the AMF transmits a handover command to the NG-RAN, wherein the SM context request is for a PDU session associated with 3GPP access among a plurality of protocol data unit (PDU) sessions.

    METHOD FOR SELECTING SESSION AND SERVICE CONTINUITY MODE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20200053803A1

    公开(公告)日:2020-02-13

    申请号:US16339918

    申请日:2017-08-03

    Abstract: Disclosed are a method for selecting a session and a service continuity mode in a wireless communication system and a device therefor. Specifically, a method for selecting a session-and-service continuity (SSC) mode associated with a protocol data unit (PDU) session by a user equipment (UE) in a wireless communication system supporting a plurality of SSC modes may comprise the steps of: receiving a data transmission request from an application; checking whether a first PDU session can support an SSC mode associated with the application; and when the first PDU session can support the SSC mode associated with the application, transmitting data of the application to a network by using the first PDU session without sending a request for establishment of a new second PDU session to the network, although an SSC mode of the first PDU session does not match the SSC mode associated with the application.

    METHOD FOR TRANSMITTING OR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR THE SAME

    公开(公告)号:US20190261449A1

    公开(公告)日:2019-08-22

    申请号:US16279500

    申请日:2019-02-19

    Abstract: 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 PROCESSING ACCESS REQUEST FROM UE, AND NETWORK NODE

    公开(公告)号:US20190159107A1

    公开(公告)日:2019-05-23

    申请号:US16091734

    申请日:2017-04-03

    Abstract: A disclosure of the present specification provides a method in which a network node processes an access request from a user equipment (UE). The method may comprise the steps of: receiving an access request message from a UE; and selecting a control plane (CP) function node on the basis of information associated with the UE, in response to the access request message. Here, the selected CP function node may perform a common or basic function, which is shared among slice instances of a network. Each slice instance may include a service-specific or non-common CP function node, which is not shared with other slice instances. The method may include a step of transferring the access request message to the selected CP function node.

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