A UE reachability management method, a core network and an access network are provided. The method includes: transmitting a request message for requesting UE reachability information to an access network in a case that a UE supports a radio resource control (RRC) inactive state; receiving the UE reachability information fed back by the access network according to the request message.

A mechanism is provided to monitor and control the number of terminals (100) or number of PDU sessions for a network slice, or both. A new network function called the Network Slice Control Function (NSCF) (85) is defined that interacts with an Access and Mobility Management Function (AMF) (40) and/or Session Management Function (SMF) (45) to monitor and control a number of users for a network slice, a number of PDU sessions for a network slice, or both. The NSCF (85) determines per slice quotas for the number of users and/or number of session for network slices and interacts with the AMF (40) and/or SMF (45) to enforce the quotas.

A network repository function (NRF) receives, from an access and mobility management function (AMF), a discovery request for an address of a session management function (SMF), the discovery request comprising network slice isolation information for at least one network slice. The NRF sends, to the AMF and based on the discovery request, a discovery response comprising the address of the SMF.

A network repository function (NRF) receives, from an access and mobility management function (AMF), a discovery request for an address of a session management function (SMF), the discovery request comprising network slice isolation information for at least one network slice. The NRF sends, to the AMF and based on the discovery request, a discovery response comprising the address of the SMF.

A load migration method, apparatus, and system. The method includes obtaining, by a first controller, in a process of migrating a user equipment (UE) to the first controller from a second controller, a first temporary user identifier of the UE, the first temporary user identifier comprising a second identifier of the second controller, allocating, by the first controller, a second temporary user identifier to the UE, the second temporary user identifier comprising a first identifier of the first controller, transmitting, by the first controller, the second temporary user identifier to a database server for updating the first temporary user identifier by the second temporary user identifier, and sending, by the first controller to an external network element, the first identifier of the first controller.

A load migration method, apparatus, and system. The method includes obtaining, by a first controller, in a process of migrating a user equipment (UE) to the first controller from a second controller, a first temporary user identifier of the UE, the first temporary user identifier comprising a second identifier of the second controller, allocating, by the first controller, a second temporary user identifier to the UE, the second temporary user identifier comprising a first identifier of the first controller, transmitting, by the first controller, the second temporary user identifier to a database server for updating the first temporary user identifier by the second temporary user identifier, and sending, by the first controller to an external network element, the first identifier of the first controller.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for implementing adaptive geofence alerts are disclosed. In one aspect, a method includes the actions of receiving, by a server, data inputted into a first computing device of a first user. The actions further include, determining, by the server, a future location of a second user and a future time when the second user will likely be at the future location. The actions further include determining, by the server, a second computing device of the second user. The actions further include providing, for output to the second computing device, instructions to provide, to the server, location information of the second computing device based on a location of the second computing device being at least a threshold distance from the future location at the future time.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for implementing adaptive geofence alerts are disclosed. In one aspect, a method includes the actions of receiving, by a server, data inputted into a first computing device of a first user. The actions further include, determining, by the server, a future location of a second user and a future time when the second user will likely be at the future location. The actions further include determining, by the server, a second computing device of the second user. The actions further include providing, for output to the second computing device, instructions to provide, to the server, location information of the second computing device based on a location of the second computing device being at least a threshold distance from the future location at the future time.

A processing device that is an edge computer connected to a base station communicatable with a vehicle in a service area includes: a request generation unit generating a first request including location information and a range from the location information specifying a region in which information sharing is requested, and an identifier from which a demander that requests the information sharing is identifiable; an accepted request holding unit holding a second request based on an information sharing demand from another processing device when shared information regarding the region is sendable in response to the second request; and a request location information inquiry unit generating the shared information including a cognitive event and the identifier held in the accepted request holding unit when location information indicating a cognitive event occurrence point acquired from the vehicle via the base station is included in a region specified by the second request information.

The described technology is generally directed towards a multi-connectivity (three or more simultaneous communication links) framework in a wireless communication network, including aspects and components that support the operation of New Radio vehicle-to-everything (V2X) services. Aspects of the framework include initial access and V2X establishment, local manager selection, sidelink and cellular resource configuration, mobility and measurements (and reporting), group communication and vehicular platooning support, and V2X configuration and local manager association.