Abstract:
The present invention relates to a method for processing paging from a server managing mobility within a mobile communication network. The method comprises the steps of: the mobility management server receiving a tracking area update (TAU) request from user equipment; the mobility management server obtaining context of the user equipment from a previous mobility management server for the user equipment; the mobility management server determining whether paging was being performed from the previous mobility management server by downlink data to be relayed to the user equipment, based on the context that is obtained; and relaying a paging signal to one or more base stations for the user equipment when the paging with respect to the user equipment is determined as being performed.
Abstract:
One embodiment of the present invention relates to a method for enabling a network node to support selected IP traffic offload (SIPTO) in a local network of a wireless communication system, and the method for supporting SIPTO comprises the steps of: determining whether or not SIPTO for each IP flow in the local network is applied to a packet data network (PDN) connection associated with a first access point name (APN); and triggering a PDN connection associated with a second APN to a terminal when the SIPTO for each IP flow is applied.
Abstract:
The present invention relates to a wireless communication system and, more specifically, to a method and a device for updating an area of a terminal. A method for processing an area update request of a terminal in a network node, according to one embodiment of the present invention, comprises the steps of: receiving an area update request message from the terminal; and determining whether or not the area update request is accepted on the basis of indication information included in the area update request message when the network is in a congestion state, wherein if the indication information indicates that the terminal has moved to a new area that is not registered, it can be determined that the area update request has been accepted.
Abstract:
The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for processing a non-access stratum (NAS) signaling request. According to one embodiment of the present invention, the method for enabling a terminal to perform the NAS signaling process in a wireless communication system comprises the steps of: receiving a first message comprising information for indicating network failure from a network node of a first network; starting a timer related to network selection; and selecting a second network among the network candidates except for the first network when the timer related to network selection is operated.
Abstract:
One disclosure of the present specification provides a method by which a terminal that joined a first public land mobile network (PLMN) performs a connection. The method may comprise a step for transmitting a first request message to a network node through a base station. The base station may be a base station of a second PLMN that broadcasts system information including information about the first PLMN. The method may comprise a step for receiving, from the network node, a first acceptance message for the first request message. The first acceptance message may include information indicating that there is a service failure in the first PLMN. The method may comprise a step for displaying, on a screen of the terminal, information indicating that the terminal is connected to the second PLMN on the basis of the information.
Abstract:
One disclosure of the present specification provides a method for performing, by relay UE, communication related to PS Data Off. The method may comprise the steps of: receiving a direct communication request message from remote UE, wherein the direct communication request message includes PS Data Off status information of the remote UE; determining whether or not to establish a protocol data unit (PDU) session for the remote UE, on the basis of the PS Data Off status information of the remote UE; and transmitting a PDU session establishment request message to a network node, on the basis of the determination to the establishing of the PDU session for the remote UE.
Abstract:
Provided in one embodiment of the present specification is a method for user equipment (UE) for an Internet protocol multimedia subsystem (IMS) voice session. The method can comprise the steps of: establishing an EMS voice session by using a non 3GPP interworking function (N3IWF) or an enhanced packet data gateway (ePDG) through non-3rd generation partnership project (3GPP) access; determining that voice is not supported on a current NG-RAN on the basis of that the UE must moves the IMS voice session to a 3GPP access; and handing over a protocol data unit (PDU) session for the IMS voice session of the non-3GPP access to an evolved packet core (EPC) of the 3GPP access on the basis of the determination.
Abstract:
Provided in one disclosure of the present specification is a user equipment (UE) for establishing a Protocol Data Unit (PDU) session. The UE may include: a transmission and reception unit; and a processor for controlling the transmission and reception unit. The processor may perform: a step for assessing whether there is a possibility of the PDU session being handed over to a non-3rd Generation Partnership Project (non-3GPP) access; a step for determining the ID of the PDU session according to the assessment; and a step for transmitting a message including the determined ID of the PDU session.
Abstract:
According to the present specification, disclosed is a method for preventing the transmission of a negative response when an AF subscribed to a notification service for a user plane management event receives a notification from an SMF, and when it is determined that a subsequent action according to the notification cannot be processed immediately but can be processed after a predetermined period of time.
Abstract:
A disclosure of the present specification provides a method for an AMF node to communicate. The method comprises the steps of: receiving, from a UDM node, updated subscriber information about a Remote UE; determining whether to stop a service to the Remote UE on the basis of the updated subscriber information about the Remote UE; and transmitting, to a Relay UE communicating with the Remote UE, a deregistration request message requesting deregistration of the Remote UE.