The present disclosure relates to a slice-based communications method. In one example method, an access and mobility management function (AMF) node sends a first request message to a network slice selection function (NSSF) node. The AMF node receives a response message from the NSSF node. The AMF node obtains, based on the response message, allowed network slice selection assistance information (NSSAI).

The present disclosure relates to a slice-based communications method. In one example method, an access and mobility management function (AMF) node sends a first request message to a network slice selection function (NSSF) node. The AMF node receives a response message from the NSSF node. The AMF node obtains, based on the response message, allowed network slice selection assistance information (NSSAI).

In one example, a user equipment (UE) has a non-Third Generation Partnership Project (non-3GPP) radio transceiver for communication in a local private non-3GPP wireless network and a 3GPP radio transceiver for communication in a 3GPP network, where the 3GPP network may be a public 3GPP network or a local private 3GPP network operative in a shared spectrum according to a system for shared spectrum access. Initially, the UE may operate the 3GPP radio transceiver for communication in the public 3GPP network, without performing regular scanning for the local private 3GPP network. In a scan operation using the non-3GPP radio transceiver, the UE may receive from a non-3GPP access point of the local private non-3GPP wireless network one or more messages including one or more information elements. If an information element indicates presence of the local private 3GPP network, the UE may identify and register with the local private 3GPP network.

In one example, a user equipment (UE) has a non-Third Generation Partnership Project (non-3GPP) radio transceiver for communication in a local private non-3GPP wireless network and a 3GPP radio transceiver for communication in a 3GPP network, where the 3GPP network may be a public 3GPP network or a local private 3GPP network operative in a shared spectrum according to a system for shared spectrum access. Initially, the UE may operate the 3GPP radio transceiver for communication in the public 3GPP network, without performing regular scanning for the local private 3GPP network. In a scan operation using the non-3GPP radio transceiver, the UE may receive from a non-3GPP access point of the local private non-3GPP wireless network one or more messages including one or more information elements. If an information element indicates presence of the local private 3GPP network, the UE may identify and register with the local private 3GPP network.

This disclosure provides a method of obtaining user equipment behavior data, a method of sending user equipment behavior data, an apparatus, and a network device. The method of obtaining user equipment behavior data includes: determining a target network function entity serving a designated area; sending a data collection request to the target network function entity, the data collection request being used for obtaining behavior data of all UEs in the designated area; and receiving the behavior data of the UEs in the designated area sent by the target network function entity.

A session management method, device, and system, such that a terminal can access a local data network using a local user plane function (UPF) network element even when the terminal is out of a management area of a remote anchor session management function (SMF) network element. The method includes: receiving, by an intermediate session management network element, one or more local data network access identifiers (DNAIs); and determining, by the intermediate session management network element, a target DNAI based on current location information of a terminal and the one or more local DNAIs, where the target DNAI is used to select a local session management network element for the terminal.

The invention relates to a solution for controlling a routing of data traffic of a roaming terminal device (140) with data network (150), the method comprises: detecting (210) if the terminal device (140) is served by a private network (130), and in accordance with a detection result performing one of: selecting (220) a network node (135) of the private network (130) for managing the routing if the roaming terminal device (140) is served by the private network (130); or selecting (230) a network node (115; 125) of a mobile communication network (110; 120) for managing the routing if the terminal device (140) is not served by the private network (130), the method further comprising: generating (240) a control signal to a respective network (130; 110; 120) the selected network node (115; 125; 135) resides for assigning a responsibility for managing the routing.

The invention relates to a solution for controlling a routing of data traffic of a roaming terminal device (140) with data network (150), the method comprises: detecting (210) if the terminal device (140) is served by a private network (130), and in accordance with a detection result performing one of: selecting (220) a network node (135) of the private network (130) for managing the routing if the roaming terminal device (140) is served by the private network (130); or selecting (230) a network node (115; 125) of a mobile communication network (110; 120) for managing the routing if the terminal device (140) is not served by the private network (130), the method further comprising: generating (240) a control signal to a respective network (130; 110; 120) the selected network node (115; 125; 135) resides for assigning a responsibility for managing the routing.

The disclosed technology is directed towards a mobile device/user equipment taking action to comply with the lawful intercept regulations of a different country when roaming in that country. The mobile device maintains a lawful intercept dataset, e.g., in its universal integrated circuit card (UICC), in which the dataset contains mobile country codes (MCCs) of countries that have data communications encryption regulations. When a roaming mobile country code observed by the user equipment matches a roaming mobile country code in the lawful intercept dataset, the mobile device signals its home network with a message indicating that the user equipment is connected to a roaming network in a country that has a data communications encryption regulation. Full or partial encryption regulations can be signaled from the mobile device.

A method of executing a service for a service consumer, said service consumer being registered in a home telecommunication network and currently residing in a visited telecommunication network, said method comprising the steps of retrieving a list of available services within the home telecommunication network that said service consumer is allowed to access, wherein said SDVN function and said home NRF both reside in said home telecommunication network, receiving a service operation message requesting an operation execution within a particular service for said service consumer in said visited telecommunication network, determining that said home network is able to provide for said requested particular service based on said retrieved list of available service, and selecting one or more service instances for executing said operation within said particular service for said service consumer.