Samsung Electronics Co., Ltd.

Kyungjoo Suh

Youngkyo Baek

Kisuk Kweon

Jungshin Park

Jungje Son

Hoyeon Lee

Sunghoon Kim

Sangjun Moon

Andrew Bennett

Yoonseon Han

Sangsoo Jeong

Duckey Lee

Jicheol Lee

Hyesung Kim

The disclosure relates to a 5G or 6G communication system for supporting higher data rates. A method performed by a UE includes transmitting, to a first VPLMN, a first registration request message; receiving, from the first VPLMN, a registration accept message including roaming information associated with an HPLMN; validating the roaming information; based on a result of the validating, setting a timer for releasing a PDU session with the first VPLMN; based on the timer, performing a local release for the PDU session with the first VPLMN; based on the roaming information, selecting a second VPLMN; and transmitting, to the second VPLMN, a second registration request message.

Communication for roaming terminal in wireless communication system

A method of a user equipment (UE) in a wireless communication system includes: transmitting, to a core entity, a tracking area update (TAU) request message including UE radio capability information associated with a UE radio capability identity (ID); receiving, from the core entity, a security mode command message for requesting UE radio capability ID information, based on the UE radio capability information; and transmitting, to the core entity, a security mode complete message including the UE radio capability ID information.

Method and device for performing communication in wireless communication system

The disclosure relates to a fifth-generation (5G) or sixth-generation (6G) communication system for supporting a higher data transmission rates. A method by a user equipment (UE) configured to perform an emergency call in a non-public network is provided. The method includes receiving, from an access and mobility management function (AMF), information related to at least one supported non-public network and information indicating whether the at least one supported non-public network supports an emergency call, transmitting, to the AMF, a registration request message including information indicating that the UE requests an emergency call service in a non-public network, receiving, from the AMF, a registration accept message including an emergency call number, identifying whether the registration accept message includes information indicating that the non-public network supports the emergency call service, and performing the emergency call in the non-public network based on a result of the identification.

Device and method for providing emergency call service in wireless communication network

The disclosure relates to a device and a method for providing an emergency message in a wireless communication system. An embodiment of the disclosure provides a method and a device for providing an emergency message to a terminal by a base station communicating with the terminal via a wireless interface in a wireless communication system in which the base station comprises one central unit (CU) and one or more distributed units (DUs).

Device and method for providing emergency message in wireless communication system

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system. A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes selecting a stand-alone non-public network (SNPN) based on at least one of whether the SNPN supports a public warning system (PWS) or whether the SNPN supports an emergency call, transmitting, to a base station within the selected SNPN, a registration request message including information associated with supporting the PWS, and receiving, from the base station, a registration accept message.

Method and apparatus for supporting mobility for user equipment in wireless communication system

The present disclosure relates to a 5generation (5G) or pre-5G communication system for supporting a higher data transfer rate beyond a 4generation (4G) communication system such as long term evolution (LTE). According to various embodiments, a device of user equipment (UE) in a wireless communication system may comprise at least one transceiver and at least one processor operably connected to the at least one transceiver, wherein the at least one processor is configured to: perform data communication on the basis of a first protocol data unit (PDU) session through a first access network; transmit a PDU session establishment request message for generating a second PDU session, to the network entity of a session management function (SMF) through a second access network; receive a PDU session establishment accept message from the network entity of the SMF; and perform data communication on the basis of the first PDU session and the second PDU session according to the PDU session establishment accept message, wherein the first access network comprises one of 3rd generation partnership project (3GPP) access and non-3GPP access, and the second access network comprises the remaining one of the 3GPP access and non-3GPP access.

Device and method for managing session in wireless communication system

The present disclosure relates to a method and apparatus for allowing a user equipment (UE) to manage a session in a wireless communication system. According to an embodiment of the present disclosure, the UE may transmit a first uplink (UL) non-access stratum (NAS) transport message including a packet data unit (PDU) session establishment request to an access and mobility management function (AMF), receive a downlink (DL) NAS transport message from the AMF, and transmit a second UL NAS transport message including the PDU session establishment request based on a timer.

Method and apparatus for managing session in wireless communication system

Provided are an apparatus and method for providing security in a wireless communication system. A user equipment (UE) may transmit a registration request message to an access and mobility management function (AMF), in response to reception of a registration reject message from the AMF, transmit an attach request to a mobility management entity (MME), and receive an attach accept from the MME, wherein, when the AMF and the UE have a security context, a security-protected registration reject message may be transmitted by the AMF to the UE, a registration request from the UE may be redirected from the AMF to the MME, and when at least one of the AMF and the UE does not have security context information, the attach request may include security verification information.

Apparatus and method for providing security in wireless communication system

A method, performed by a user equipment (UE), for protecting data includes: transmitting an attach request message including at least one security protection parameter regarding a UE capability to support a security protection for a user plane, to a mobility management entity (MME) via a base station; and in case that a security policy is determined at a policy charging function (PCF) based on the attach request message and information of the security policy is received at the MME, receiving an attach accept message including at least one security protection parameter regarding a network capability for the security policy related with an evolved packet system (EPS) bearer, from the MME via the base station.

Method and apparatus for using NAS message for data protection

The disclosure provides a method, performed by a user equipment (UE), of processing a non-access stratum (NAS) message, the method including: receiving a paging request message from an access and mobility management function (AMF); transmitting a service request message to the AMF; receiving a service accept message from the AMF; receiving a session management message from a session management function (SMF); and after receiving the session management message, receiving a UE configuration update command message from the AMF.

Method and device for processing NAS message information in wireless communication system

The present disclosure relates to a communication technique for managing mobility and sessions in the case of supporting multiple access of 3GPP access and non-3GPP access in a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied, on the basis of 5G communication technology, to services requiring the high speed, high transmission rate, low latency, high reliability, and the like of 5G or intelligent services (e.g. smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security and safety-related services, etc.). The present disclosure discloses an efficient session and mobility management method using NAS protocols.

Session and mobility management method using NAS protocols

A communication method and device in a wireless communication system supporting edge computing is provided. A method of a UE including an EEC in a communication system supporting an edge computing service using an EDN exchanging application data traffic with the UE is provided, the method comprises identifying whether the UE supports a SMS over NAS, transmitting, to an ECS managing configuration information of the EDN, a first service provisioning request message including an indication of the SMS over the NAS supported in case that the UE supports the SMS over the NAS, and in case that the UE receives, through a network from the ECS, an SMS message including triggering information related to an update of the configuration information, transmitting, to the ECS, a second service provisioning request message based on the triggering information.

Communication method and device in wireless communication system supporting edge computing

A method of operating a terminal in a wireless communication system is provided. The method includes transmitting a first registration request message to a network node, based on information of a first network slice, receiving an authentication command message regarding the first network slice from the network node, transmitting an authentication complete message regarding the first network slice to the network node, receiving an authentication result message regarding the first network slice from the network node, configuring a timer to have a specific timer value, if the authentication result message indicates a failure in authentication for the first network slice, and transmitting a second registration request message to the network node, based on information of a second network slice after the timer expires.

Device and method for supporting authentication management in wireless communication system

The disclosure relates to a method and apparatus for protecting information in a wireless communication system, and an operating method of a user equipment (UE) in the wireless communication system may include: transmitting, to an access and mobility management function (AMF), a registration request message including security information related to a security key processing capability of the UE; receiving, from the AMF, an authentication request message; transmitting, to the AMF, an authentication response message in response to the authentication request message; receiving, from the AMF, a security mode command message; and transmitting a security mode complete message in response to the security mode command message.

Method and apparatus for protecting information in wireless communication system

A communication method of an access and mobility function (AMF) node in a communication system is provided. The communication method includes receiving, from a base station, a registration request message for a terminal, transmitting, to an old AMF previously accessed by the terminal, an information request message for the terminal, and receiving, from the old AMF, an information response message including network slice selection assistance information (NSSAI) corresponding to the terminal.

Growing community of inventors

Seoul, South Korea

Kyungjoo Suh