Lg Electronics Inc.

Myungjune Youn

Hyunsook Kim

Laeyoung Kim

Jinsook Ryu

Sangmin Park

Jaehyun Kim

Sungduck Chun

Taehun Kim

Dongsoo Kim

Jian Xu

Daewook Byun

Seokjung Kim

Sunhee Kim

Jaewook Lee

Bokyung Byun

Heejeong Cho

Hyun Sook Kim

Jaehyu Kim

Lae Young Kim

Sehee Lee

One disclosure of the present specification provides a method by which an AMF performs communication related to a network slice. The method may comprise the steps of: receiving a PDU session establishment request message including information about a second PDU session; determining to forward a UE to a second RAN node supporting a second network slice; transmitting a message including information indicating that the UE needs to be forwarded to the second RAN node supporting the second network slice; receiving a handover required message; and transmitting a request message for deactivating the first PDU session related to a first network slice.

Communication related to network slice

Provided are a method for supporting wireless local area network (WLAN) use experience analysis using user equipment (UE) WLAN user data, and device supporting the same. A policy and charging function (PCF) operating in a wireless communication system: requests analytics information relating to a WLAN from a network data analytics function (NWDAF); receives analytics information relating to the WLAN from the NWDAF in response to the request; and updates a WLAN selection policy on the basis of the analytics information relating to the WLAN.

Method for supporting WLAN use experience analysis using UE WLAN user data

Provided in one embodiment of the present specification is a method by which an NG-RAN node performs communication related to a multicast. The method may comprise the steps of: receiving, from an AMF, a UE context release command message related to a first UE; determining that the first UE moves from a 5GS to an EPS, on the basis of the reception of the UE context release command message; and removing, from a context related to a multicast session, information related to the first UE.

Multicast-related communication

One disclosure of the present specification provides a method in which a UE performs communication related to PS Data Off. The method may comprise: a step for transmitting a first PDU session establishment request message in order to establish a PDU session associated with non-3GPP access or 3GPP access; and a step for transmitting a second PDU session establishment request message in order to perform a handover between the non-3GPP access and the 3GPP access for the PDU.

Communication related to PS data off

A disclosure of the present specification provides a method for performing, by a visited public land mobile network-policy control function (V-PCF), communication using edge computing. The method comprises the steps of: establishing UE policy association with a home public land mobile network-policy control function (H-PCF); receiving a first subscription message from the H-PCF; and transmitting a second subscription message to a visited public land mobile network-unified data repository (V-UDR). The first subscription message is a message that requests a notification, according to edge application server (EAS) information being updated or modified, the second subscription message is a message that requests a notification, according to the EAS information being updated or modified, the second subscription message is based on the first subscription message, and the EAS information may be information that is generated by an application function (AF) and transmitted to the V-UDR.

Communication associated with edge computing

One disclosure of the present specification provides a communication method related to a change of an application server performed by an SMF node. The method may comprise: a step for transmitting a notification message related to a change of a user plane path to an AF node; a step for receiving a response message from the AF node in response to the notification message; and a step for transmitting a message including information on an IP address of the changed application server to a terminal through an AMF node.

Communication related to change of application server

A disclosure of the present specification provides a method for performing multicast-related communication by an SMF. The method may comprise the steps of: receiving, from a UE, a join request message for requesting participation in multicast communication; transmitting, to an AMF node, an allocation request message for requesting allocation of an EBI to a unicast QoS flow corresponding to a multicast QoS flow related to the multicast communication; and receiving information of the EBI allocated to the unicast QoS flow from the AMF node.

One disclosure of the present specification provides a method for performing, by a network node, communication associated with an MA PDU session. The method may comprise the steps of: receiving information indicating that PS data off has been activated for an MA PDU session of a UE; updating a PCC rule on the basis of the information indicating that the PS data off has been activated for the MA PDU session; and transmitting the updated PCC rule to an SMF.

Communication associated with multi-access PDU session

One disclosure of the present specification provides a method by which a first network node performs communication on the basis of multiple USIMs. The method can comprise: receiving, from UE, a registration request message including MT service configuration information; receiving, from the UE, information informing that the UE leaves a first network including the first network node; receiving, from a second network node, information related to downlink data about the UE; and transmitting a paging message or a failure indication on the basis of the MT service configuration information and the information related to the downlink data.

Communication related to multiple usims

Provided in one embodiment of the present specification is a method by which an IMS AS performs communication related to a MA PDU session. The method can comprise the steps of: receiving, through a P-CSCF and a S-CSCF, a SIP registration message generated by means of UE, the SIP registration message including information that an IMS service is performed through the MA PDU session, and the SIP registration message including state information that the state of a PS data off of the UE is active; receiving, from the S-CSCF, an SIP request message for requesting the IMS service from the UE; checking whether the IMS service corresponds to an exempt service of the PS data off; including the checked result in the SIP request message; and transmitting the SIP request message to a UPF through the S-CSCF and the P-CSCF.

Communication related to multi access PDU session

A method performed by a terminal operating in a wireless communication system. Based on that the terminal is located in a non-allowed area, and based on the terminal having a pending uplink signaling to inform a change in a Packet Switch (PS) data off status of the terminal, the terminal transmits a service request message to a network node. The service request message includes service type information that is related to the change in the PS data off status of the terminal. The terminal then receives, from the network node, a response message to the service request message.

Method for performing communication related to packet switch (PS) data off

The present disclosure may provide a method of operating a terminal based on a plurality of networks in a wireless communication system. Herein, the method of operating the terminal may include establishing a connection with a public land mobile network (PLMN), determining whether or not to simultaneously access the PLMN and non-public networks (NPN), transmitting, to the NPN, indication information indicating a simultaneous access request for the PLMN and the NPN, receiving, from the NPN, supported PLMN list information, and when the connected PLMN is included in the supported PLMN list information, accessing the NPN through a packet data unit (PDU) session of the PLMN. Herein, a supported PLMN list may be a list which is determined according to whether or not a quality of service (QoS) is supported based on a service level agreement (SLA) between the PLMN and the NPN.

Method and apparatus for transmitting and receiving signals in wireless communication system

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.

Method and a first device for an access mobility management function of a second public land mobile network (PLMN) providing disaster roaming services in a wireless communication system

A method and apparatus for support of service continuity between stand-alone non-public network (SNPN) and public land mobile network (PLMN) is provided. A wireless device transmits, to an access and mobility management function (AMF) of a source network, a protocol data unit (PDU) session establishment request to establish a PDU session with the source network via a non-3GPP interworking function (N3IWF) of the source network. The PDU session establishment request includes information informing that data delivery is not available via the PDU session. The wireless device determines to move from the source network to a target network, and transmits, to a user plane function (UPF) of the source network, mobility information informing that the wireless device moves from the source network to the target network.

Support of service continuity between SNPN and PLMN

A disclosure of this specification provides a method for performance measurement of SDF (service data flow), performed by SMF (Session Management Function), the device comprising: receiving a QoS (Quality of Service) rule from a SMF (Session Management Function); performing measurement of performance of a target QoS flow for the SDF, with a UPF (User Plane Function), wherein based on a reflective QoS being not used for the SDF, the QoS rule includes downlink QoS information on the target QoS flow, wherein the target QoS flow is a QoS flow used by the UE to receive a downlink packet for the SDF.

Growing community of inventors

Seoul, South Korea

Myungjune Youn