METHOD FOR SELECTING NETWORK NODE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20190357129A1

    公开(公告)日:2019-11-21

    申请号:US16461660

    申请日:2017-11-16

    Abstract: A method for selecting a serving AMF of a network node in a wireless communication system includes receiving a registration request message of a user equipment (UE), the registration request message including a network slice selection assistance information (NSSAI) for a slice requested by the UE and priority information of the NSSAI; determining whether the NSSAI is valid for the UE; when the NSSAI is valid for the UE, searching a first AMF which is able to support the NSSAI based on the priority information; and when the first AMF is searched, selecting the first AMF as the serving AMF serving the UE and transmitting the registration request message to the first AMF.

    METHOD FOR SUPPORTING NAS SIGNALING BY BASE STATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20190342827A1

    公开(公告)日:2019-11-07

    申请号:US16064835

    申请日:2017-07-03

    Abstract: An embodiment of the present invention provides a method for supporting non-access stratum (NAS) signaling of a user equipment (UE) by a base station in a wireless communication system, the method comprising the steps of: transmitting, to the UE, information for supporting a connection to a next generation (NG) core; receiving a NAS-related message from the UE; performing one of MME selection and AMF selection according to whether the NAS-related message includes information regarding the use of NAS; and transmitting an NAS message to an MMF or an AMF which is determined as a result of performing one of the MME selection and the AMF selection.

    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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