Apparatus and method for registration on network in wireless communication system

    公开(公告)号:US11304170B2

    公开(公告)日:2022-04-12

    申请号:US17267667

    申请日:2019-08-13

    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). According to various embodiments of the present disclosure, an operating method of a core network entity in a wireless communication system, may include obtaining identification information of a private network from a registration request message obtained from a user equipment, selecting an authentication server function (AUSF) which supports authentication for the UE, based on the identification information of the private network, in response to performing an authentication procedure for the AUSF and the UE, selecting unified data management (UDM) for managing subscription information and registration information of the UE, obtaining the subscription information of the UE for the private network from the UDM, performing validity check of the UE for the private network, based on the subscription information of the UE, and registering the UE at the private network, based on results of the authentication procedure and the validity check.

    Method and apparatus for managing session to change a user plane function in a wireless communication system

    公开(公告)号:US11297543B2

    公开(公告)日:2022-04-05

    申请号:US16917573

    申请日:2020-06-30

    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 present disclosure further relates to a method by a session management function (SMF) in a network including a session that is established via a first user plane function (UPF). The method includes determining whether to change the first UPF to a second UPF, and transmitting, to a terminal via an access and mobility function (AMF), a first message including a maintain time of the session established via the first UPF, when the first UPF needs to be changed.

    Apparatus and method for synchronization using wireless communication network in wireless communication system

    公开(公告)号:US11051321B2

    公开(公告)日:2021-06-29

    申请号:US16593295

    申请日:2019-10-04

    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). According to various embodiments of the disclosure, an operating method of a user plane function (UPF) in a wireless communication system and an apparatus therefor are provided. The operating method includes receiving a first parameter for clock synchronization from a base station, and performing the clock synchronization with a neighboring network system using the received first parameter and a second parameter. The first parameter may include information relating to a link delay time between the neighboring network system and a network system comprising the UPF, and a residence time of a terminal, a base station and the UPF of the network system comprising the UPF, and the second parameter may include information relating to a backhaul delay time between the base station and the UPF.

    METHOD AND DEVICE FOR PROVIDING SERVICE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210112573A1

    公开(公告)日:2021-04-15

    申请号:US17128970

    申请日:2020-12-21

    Abstract: The present disclosure relates to a communication technique for fusing, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, and security and safety related services, on the basis of 5G communication technologies and IoT-related technologies. The present invention, according to one embodiment, may provide a method for requesting a service by a terminal, the method comprising the steps of: receiving, from a first network core, information for instructing a second network priority traffic; on the basis of the information for instructing the second network priority traffic, searching for a cell of a second network; and, if a cell accessible to the second network exists, transmitting a service request to the second network.

    Method and apparatus for providing 5G ethernet service

    公开(公告)号:US10944666B2

    公开(公告)日:2021-03-09

    申请号:US16536650

    申请日:2019-08-09

    Abstract: A communication method and a 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) are provided. The 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 relates to a method for a terminal, the method including transmitting a protocol data unit (PDU) setup request message including information indicating support of a switch mode, receiving switch mode configuration information associated with the switch mode, and performing a switch mode operation based on the switch mode configuration information, wherein the switch mode configuration information includes information indicating whether to execute a spanning tree algorithm.

    Method for supporting efficient PDU session activation and deactivation in cellular networks

    公开(公告)号:US10251147B2

    公开(公告)日:2019-04-02

    申请号:US15926953

    申请日:2018-03-20

    Abstract: The present disclosure relates to a communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with an IoT technology. 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 present disclosure provides a scheme for efficiently operating an UP connection of a session in case where a terminal has a plurality of sessions in a mobile communication system, such as a 5G system, having a network structure in which an AMF for mobility management and an SMF for session management are separated from each other. Through the present disclosure, a terminal (UE) can optimize a non-access stratum (NAS) signaling message, and can perform data transmission/reception with low latency.

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