Method and user equipment for connecting by means of plurality of accesses in next generation network

    公开(公告)号:US10716159B2

    公开(公告)日:2020-07-14

    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.

    Method and cell for determining handover of PDU session

    公开(公告)号:US10708830B2

    公开(公告)日:2020-07-07

    申请号:US16613107

    申请日:2018-06-05

    Abstract: A disclosed feature of the present specification provides a method for a source cell determining a handover of a packet data unit (PDU) session. The method may include a step of determining a target cell or target next generation radio access network (NG-RAN) based on a measurement report by a terminal. A handover region list can additionally be considered in the target cell or target NG-RAN determination step. The method may include a step of transmitting a handover request message that does not include context with respect to the PDU session to the target cell or target NG-RAN, based on the handover region list, if it is confirmed that the determined target cell or target NG-RAN cannot serve for the PDU session.

    Method for group message transmission in wireless communication system and apparatus therefor

    公开(公告)号:US10595188B2

    公开(公告)日:2020-03-17

    申请号:US15741110

    申请日:2016-06-30

    Abstract: A method for transmitting, by a first mobility management entity (MME), a group message in group units, to which a plurality of terminals belong, in a wireless communication system according to one embodiment of the present invention may comprise the steps of: receiving a group message request message requesting for transmission of the group message, wherein the group message request message includes a group identifier (ID) of a group to receive the group message, delivery contents to be transmitted to the group, and validity time which buffers the delivery contents; detecting a first terminal connected to the first MME within the validity time; confirming whether the group ID of the detected first terminal is identical to the group ID of the group message request message; and, if the two group IDs are identical, transmitting the delivery contents to the first terminal.

    METHOD FOR CONTROLLING CONGESTION WHEN CONGESTION OCCURS IN NETWORK

    公开(公告)号:US20190357118A1

    公开(公告)日:2019-11-21

    申请号:US16477292

    申请日:2018-01-15

    Abstract: One disclosure of the present specification provides a method for performing congestion control when session management congestion occurs in a network system. The method comprises the steps of: transmitting, to an access and mobility function (AMF) node, a request message requesting access to the network system; and receiving a refusal message rejecting the access request from the AMF node when the session management congestion occurs, wherein upon receiving the refusal message, the request message may not be transmitted again for a predetermined period of time.

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