An electronic device includes an interface, one or more processors operatively connected the interface, and memory storing instructions. The instructions are configured to, when executed by the one or more processors individually or collectively, cause the electronic device to connect, using a wireless modem device coupled through the interface, a data session for cellular data communication, receive, via the data session, a first router advertisement (RA) message, obtain, from the first RA message, at least one lifetime for the data session, determine whether the at least one lifetime is updated until a predetermined time before expiration of the at least one lifetime, based on determining that the at least one lifetime is not updated, transmit a signal requesting an Internet Protocol (IP) reconfiguration, receive a second RA message based on the transmitting of the signal, and update the at least one lifetime based on the second RA message.

Embodiments of this application disclose a model training method, a terminal, and a network-side device. The model training method in the embodiments of this application includes: receiving, by a first device, a first message from a second device, where the first message is used to indicate termination or suspension of federated learning training; and performing, by the first device, a first operation based on the first message, where the first device includes a federated learning client, and the second device includes a federated learning server.

An information processing system includes a first information processing apparatus, a server apparatus, and a second information processing apparatus. An export processing unit of the first information processing apparatus sends an export instruction, a first device number, and migration data to the server apparatus. An export management unit of the server apparatus receives and stores the export instruction, the first device number, and the migration data in association with each other. An import instruction unit of the second information processing apparatus sends an import instruction including the first device number to the server apparatus. An import management unit of the server apparatus receives the import instruction and sends the migration data to the second information processing apparatus. An import processing unit of the second information processing apparatus receives and records the migration data.

An information processing system includes a first information processing apparatus, a server apparatus, and a second information processing apparatus. An export processing unit of the first information processing apparatus sends an export instruction, a first device number, and migration data to the server apparatus. An export management unit of the server apparatus receives and stores the export instruction, the first device number, and the migration data in association with each other. An import instruction unit of the second information processing apparatus sends an import instruction including the first device number to the server apparatus. An import management unit of the server apparatus receives the import instruction and sends the migration data to the second information processing apparatus. An import processing unit of the second information processing apparatus receives and records the migration data.

Disclosed is a method for providing a service using code streaming, which is performed by an edge-device-based service providing system. The method may include: identifying a motion recognition code module for providing a first service to a user based on a user's selection for the first service; recognizing a motion of the user by executing the identified motion recognition code module based on a motion image of the user which is input to a camera of the service providing system; requesting a service code module which is computed in a code execution device of the service providing system to a service providing server to provide the first service; generating real-time service data for the first service based on the recognized user's motion as the service code module is streamed to be received; and outputting the generated service data through a service output device of the service providing system.