Abstract: A machine learning (ML) model management method for a network data analytics function (NWDAF) device is disclosed. The NWDAF device performs at least one of an analytics logical function (AnLF) for network data and an ML model training logical function (MTLF).

Abstract: A distributed training method performed between a terminal and an edge cloud server is disclosed. The distributed training method may include identifying a plurality of user terminals located in a local network coverage of the edge cloud server, providing machine learning models to the plurality of user terminals for training and aggregating results of the training of the machine learning models from the plurality of user terminals when the training of the machine learning models is completed.

Abstract: A network device divided into a training plane and a control plane, model management server that controls a network device, and processing methods of a network device and model management server are disclosed. A processing method may include receiving a machine learning model from a model management server, obtaining network data to generate analytics information, generating analytics information by inputting the network data to a machine learning model, feeding back the analytics information to the model management server, and generating a control command of the network device using the analytics information, wherein the analytics information is generated by a training plane function and the control command is generated by a control plane function.

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new PSA device through the PSA relocation, and releasing an existing PSA device, in which the PSA relocation may allow traffic moving towards the existing PSA device to move to the new PSA device.

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new additional PSA device through the PSA relocation, and releasing an existing additional PSA device, in which the PSA relocation may allow traffic moving towards the existing additional PSA device to move to the new additional PSA device.

Abstract: Provided is a method of optimizing a network data analytics function device is disclosed. In the optimization method, the network data analytics function device may collect network data according to a request for analysis of network data received from the consumer network function device, and provide analytics information, which is a result of analyzing the network data, to the consumer network function device. The network data analytics function device may receive a feedback on the analytics information from the consumer network function device, and adjust a method of analyzing network data based on the feedback.

Abstract: A method and system for providing service experience analysis based on network data analysis is disclosed. According to the method, the NWDAF device can provide the service experience statistics or service experience prediction for an application or a network slice.

Abstract: Disclosed herein are a method and an NWDAF for collecting network data, including: transmitting a network exposure subscription request message including an event reporting granularity parameter to the NF; receiving a data set determined by the NF based on the event reporting granularity parameter from the NF through an event exposure notification message in at least one reporting cycle; and performing network data analysis using received data set.

Abstract: A method and system for providing service experience analysis based on network data analysis. According to the method, the NWDAF device can provide the service experience statistics or service experience prediction for an application or a network slice.

Abstract: Provided is a method of optimizing a network data analytics function device is disclosed. In the optimization method, the network data analytics function device may collect network data according to a request for analysis of network data received from the consumer network function device, and provide analytics information, which is a result of analyzing the network data, to the consumer network function device. The network data analytics function device may receive a feedback on the analytics information from the consumer network function device, and adjust a method of analyzing network data based on the feedback.

Abstract: A network data collection method from network function device for network data analytic function is disclosed. The network data collection method includes transmitting a Nnf_EventExposure_Subscribe message to subscribe for an event into the NF device; and receiving a Nnf_EventExposure_Notify message from the NF device, wherein, when a subscription for the event is already defined in the NF device, the subscription is updated or modified.

Abstract: Provided is a communication method and apparatus using network slicing. A communication method of a communication apparatus performing communication with a user equipment receives a predetermined request from the user equipment, selects a single network slice instance to be allocated to the user equipment from among a plurality of network slice instances in the communication apparatus in response to the request, selects a single network function instance to be allocated to the user equipment from among a plurality of network function instances included in the selected network slice instance. The network slice instance is in an instantiated form of a network slice that includes at least one network function and resource for providing a network service having a predetermined capability and characteristic to the user equipment.

Abstract: A method and system for providing service experience analysis based on network data analysis. According to the method, the NWDAF device can provide the service experience statistics or service experience prediction for an application or a network slice.

Abstract: A method and system for providing communication analysus of user equipment based on network analysis is disclosed. The method provides communication analysis of UE in a form as communication statistics or communication prediction by analyzing a network data collected form the NF device.

Abstract: A network data collection method from application function device for network data analytic function is disclosed. The network data collection method includes transmitting a Naf_EventExposure_Subscribe message for a subscription of an event into an application function (AF) device; and receiving a Naf_EventExposure_Notify message from the AF device when the NWDAF subscribes the event.

Abstract: A network data collection method from network function device for network data analytic function is disclosed. The network data collection method includes transmitting a Nnf_EventExposure_Subscribe message to subscribe for an event into the NF device; and receiving a Nnf_EventExposure_Notify message from the NF device, wherein, when a subscription for the event is already defined in the NF device, the subscription is updated or modified.

Abstract: Provided is a service request method performed by an SMF device, including receiving, by an AMF device, an N2 message including a service request message from an access network, and receiving an Nsmf_PDUSession_UpdateSMContext request message including a PDU session ID and location information and an access type of a UE from the AMF device; verifying selection criteria of a UPF device based on the received location information of the UE and determining whether to use a new UPF device or an old UPF device; and sending an Nsmf_PDUSession_UpdateSMContext response message including information on a PDU session ID with the new UPF device or the old PUF device based on the determining. The access network is configured to receive, from the AMF device, an N2 request message including an MM NAS service accept and the access network is configured to perform a service through an RRC connection reconfiguration with the UE.

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new additional PSA device through the PSA relocation, and releasing an existing additional PSA device, in which the PSA relocation may allow traffic moving towards the existing additional PSA device to move to the new additional PSA device.

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new additional PSA device through the PSA relocation, and releasing an existing additional PSA device, in which the PSA relocation may allow traffic moving towards the existing additional PSA device to move to the new additional PSA device.

Abstract: Provided is a communication method and apparatus using network slicing. A communication method of a communication apparatus performing communication with a user equipment receives a predetermined request from the user equipment, selects a single network slice instance to be allocated to the user equipment from among a plurality of network slice instances in the communication apparatus in response to the request, selects a single network function instance to be allocated to the user equipment from among a plurality of network function instances included in the selected network slice instance. The network slice instance is in an instantiated form of a network slice that includes at least one network function and resource for providing a network service having a predetermined capability and characteristic to the user equipment.