Method for obtaining operator network identification number of visited network

    公开(公告)号:US10291662B2

    公开(公告)日:2019-05-14

    申请号:US15752990

    申请日:2016-08-12

    Abstract: One disclosure of the present specification provides a method for a proxy-call session control function (P-CSCF) to obtain an identifier of a visited public land mobile network (V-PLMN) in order to register a user equipment (UE) roaming in the V-PLMN into an IP multimedia subsystem (IMS) network. The method may comprise the steps of: receiving a response message from an Interrogating-CSCF (I-CSCF) in response to the transmission of a REGISTER message for registering a user equipment into an IMS network; determining whether the received response message is a 401 unauthorized message; when the received response message is a 401 unauthorized message, transmitting the response message to the user equipment and generating an interface for transmitting and receiving data to and from an entity of an EPC network; and receiving an identifier of the V-PLMN from the entity of the EPC network.

    Method of transmitting and receiving message for communication between UEs in wireless communication system and apparatus using method

    公开(公告)号:US10194459B2

    公开(公告)日:2019-01-29

    申请号:US15435109

    申请日:2017-02-16

    Abstract: Disclosed is a method of transmitting and receiving a message for a communication between UEs in a wireless communication system and an apparatus using the method. Specifically, in a method of relaying a V2X message by a first UE (User Equipment) in a wireless communication system supporting V2X (Vehicle-to-Everything) communication, the method may comprise steps of receiving the V2X message from a second UE, calculating a resource usage rate of a direct link between UEs, determining a relay scheme of the V2X message, by comparing the calculated resource usage rate and a predetermined threshold, and transferring the V2X message to a third UE based on the determined relay scheme.

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