Abstract: The disclosure relates to 5G or 6G communication systems to support higher data rates. According to an embodiment of the disclosure, in a method of analyzing a network slice load in a wireless communication system, a method for analyzing a network slice load based on the number of UEs that have established sessions and actually use data is provided.

Abstract: The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method a network entity in a wireless communication system includes determining whether to transmit an update request message for a number of at least one user equipment (UE) with at least one packet data unit (PDU) session or packet data network (PDN) connection established on a network slice, based on the at least one PDU session or PDN connection established on the network slice, transmitting the update request message to a network slice admission control function (NSACF) entity, and receiving, from the NSACF entity, an update response message indicating whether the number of the at least one UE with the at least one PDU session or PDN connection established on the network slice reaches a maximum number of registered UEs with the network slice.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Provided is a method of solving a problem in which PDU session creation is rejected due to an NSAC in a wireless communication system according to an embodiment of the disclosure through alternative S-NSSAI.

Abstract: A method performed by an access and mobility management function (AMF) in a wireless communication system according to an embodiment of the present disclosure may include receiving a network registration request message from a terminal, determining whether or not the terminal requires support for multiple-radio network access, in case that the terminal requires support for the multiple-radio network access, requesting a network repository function (NRF) for information about an AMF supporting the multiple-radio network access, receiving, from the NRF, information about at least one AMF supporting the multiple-radio network access, and determining an AMF to perform a network registration procedure for the terminal, on the basis of the information about the at least one AMF.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first network data collection and analysis function (NWDAF) entity in a mobile communication system is provided. The method comprises transmitting, to a network entity for collecting management information, a first request message for collection of first management information for a network function (NF) entity, receiving, from the network entity, the first management information for the NF entity and identifying a result of an analysis for the NF entity based on the first management information for the NF entity.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method of a policy control function (PCF) entity in a wireless communication system includes receiving, from an access and mobility management function (AMF) entity, a first user equipment (UE) policy control create request message for UE policy association including a subscription permanent identifier (SUPT) of a UE and a network slice access stratum (AS) group (NSAG) support indication indicating that the LIE supports cell selection and cell reselection based on a network slice priority and transmitting, to the AMF entity, a response message including policy control request (PCR) trigger for change of NSAG instructing transmission of a reporting message in case that at least one of NSAG mapping information indicating a mapping relationship between slice groups and slices or NSAG priority information is changed.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure proposes, when a UE is registered in an AMF which does not support ATSSS (registration procedure), a method by which, an old AMF identifies the registration and releases an MA PDU session and a method by which the UE identifies the registration and releases the MA PDU session in a wireless communication system according to an embodiment.

Abstract: Disclosed is a 6G communication system for achieving a high data transmission rate and a super-low latency time after 4G and 5G communication systems.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure suggests a method and apparatus for determining a network slice priority in a wireless communication system according to an embodiment. The method comprises: receiving, from a second node, a first message for requesting slice priority related information; obtaining the slice priority related information for a slice priority corresponding to a network slice access stratum group (NSAG); and transmitting, to the second node, a second message including the slice priority related information in response to receiving the first message.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by an access and mobility management function (AMF) entity in a wireless communication system includes receiving, from a UE, a registration request message comprising a network slice access stratum (AS) group (NSAG) information request, receiving, from another entity, NSAG information including single-network slice selection assistance information (S-NSSAI) priority information and mapping information between the S-NSSAI and an NSAG identity, transmitting, to a policy control function (PCF) entity, at least one of the NSAG information or NSAG tracking area (TA) boundary information, receiving, from the PCF entity, NSAG priority information based on the NSAG information, and transmitting, to the UE, a registration response message including at least one of the NSAG information, the NSAG TA boundary information, or the NSAG priority information.

Abstract: The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. According to the disclosure, an operation method of a UE in a wireless communication system includes transmitting a registration request message including an access traffic steering, switching, splitting (ATSSS) path switching indication to a target access network entity, receiving a registration accept message including an access path switching timer value from the target access network entity, in response to the registration request message, transmitting a packet data unit (PDU) session establishment request message to an access and mobility management function (AMF) via the target access network entity, based on the access path switching timer value, and releasing a PDU session with a source access network entity.

Abstract: Provided is a 5G or 6G communication system for supporting higher data rates. Provided are a method and device for supporting federated learning in a wireless communication system. The method comprises: receiving, from an AF, a first request including a list of UE addresses, QoS reference or individual QoS parameters, and alternative service requirements; and transmitting, to the AF, a first response message including a result for the list of UE addresses in response to receiving to the first request. The result for the list of UE addresses includes information indicating whether the first request is granted or not for UE addresses in the list of UE addresses.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE).

Abstract: The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. A method of performing federated learning by a first network data analytic function (NWDAF) is provided. The method includes determining whether to perform a federated learning based on an analytics request message from a network function (NF), receiving, from a network repository function (NRF), information regarding a second NWDAF capable of participating in the federated learning, generating a federated learning group, transmitting, to the second NWDAF, a federated learning join request message based on the information regarding the second NWDAF, and receiving, from the second NWDAF, a federated learning join response message including information regarding whether to participate in the federated learning group.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to various embodiments, a method performed by an access mobility and management function (AMF) node in a mobile communication system, the method comprising: receiving, from a slice availability check function (SACF) node, a notification message including information on an unavailable slice; receiving, from a network data analysis function (NWDAF) node, information on a protocol data unit (PDU) session; determining, based on the notification message and the information on the PDU session, a target slice and at least one PDU session requiring a change of slice; and transmitting, to a session management function (SMF) node, a request message for changing the slice of the at least one PDU session to the target slice.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or coupled car, health care, digital education, retail, security and safety related services, etc.), based on 5G communication technologies and IoT-related technologies. A way for efficiently supporting an emergency service and a priority service in a wireless communication system of an embodiment of the present disclosure is presented.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure proposes, when a UE is registered in an AMf which does not support ATSSS (registration procedure), a method by which, an old AMF identifies the registration and releases an MA PDU session and a method by which the UE identifies the registration and releases the MA PDU session in a wireless communication system according to an embodiment.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Disclosed is a scheme for efficiently supporting a network slice group in a wireless communication system according to an embodiment of the disclosure.

Abstract: A method and an apparatus for providing a network slice in a wireless communication system are provided. The method includes transmitting a first message requesting registration of a user equipment (UE) to a first network entity via a base station (BS), receiving a second message including information indicating that the registration of the UE is accepted from the first network entity via the BS in response to the transmission of the first message, wherein the second message further includes information indicating an allowed network slice, and performing communication based on the information indicating the allowed network slice.

Abstract: A method and device for providing an exemption from a network slice bitrate limitation are provided. A method performed by an access and mobility management function (AMF) in a wireless communication system supporting bitrate limitation for a network slice is provided. The method includes receiving, via a radio access network (RAN) from a user equipment (UE), information a first message including cause information associated with allowable maximum bitrate (MBR) for the UE, and determining, based on the cause information, whether to transmit information related to an exemption of the bitrate limitation to the RAN.