A method includes determining whether a packet switched (PS) signaling connection is released, the PS signaling connection being associated with a first network corresponding to a first radio access technology (RAT), controlling a switching timing to a second network corresponding to a second RAT according to a type of the PS signaling connection, and transmitting a request for switching to the second network. A terminal includes a controller to determine whether a packet switched (PS) signaling connection is released, the PS signaling connection being associated with a first network corresponding to a first radio access technology (RAT), and to control a switching timing to a second network corresponding to a second RAT according to a type of the PS signaling connection, and a transmitter to transmit a request for switching to the second network.

A method includes determining whether a packet switched (PS) signaling connection is released, the PS signaling connection being associated with a first network corresponding to a first radio access technology (RAT), controlling a switching timing to a second network corresponding to a second RAT according to a type of the PS signaling connection, and transmitting a request for switching to the second network. A terminal includes a controller to determine whether a packet switched (PS) signaling connection is released, the PS signaling connection being associated with a first network corresponding to a first radio access technology (RAT), and to control a switching timing to a second network corresponding to a second RAT according to a type of the PS signaling connection, and a transmitter to transmit a request for switching to the second network.

The mobile communication device supports a plurality of RATs and includes a first wireless transceiver, a second wireless transceiver, and a controller. The first wireless transceiver performs wireless transmission and reception to and from a first cellular network utilizing a first RAT. The second wireless transceiver obtains a non-cellular signal indicator. The controller determines whether the first RAT is a predetermined one of the plurality of RATs when the mobile communication device camps on the first cellular network, and if not, predicts whether there is a second cellular network available, which utilizes the predetermined RAT, based on the non-cellular signal indicator. In response to predicting that the second cellular network is available based on the non-cellular signal indicator, the controller further enables the mobile communication device to camp on the second cellular network via the first wireless transceiver.

An unmanned aerial vehicle, UAV is controlled based on communication via at least two mobile communication networks. Before takeoff, the UAV receives position data describing starting and destination points. A flight plan is set up from the starting point to the destination point by obtaining information about service coverage provided by the two mobile communication networks in a volume between the starting and destination points. A path to be followed by the UAV is calculated at least based on the obtained information. The path defines a restriction volume within which the UAV is allowed to fly from the starting point to the destination point. The path is calculated on the further basis of at least one switching criterion for changing from a communicative connection between the UAV and the first mobile communication network to a communicative connection between the UAV and the second mobile communication network.

A method and apparatus for providing an edge transfer according to the movement of a device are provided. The method includes receiving a handover decision and handover information from a network, when a device performs the handover and a network function virtualization instance of the source edge is transferred to the target edge. The method then transfers an M2M service instance of the source edge to an M2M edge node.

The present disclosure provides a control method for an UAV (Unmanned Aerial Vehicle) and a remote controller. The method includes transmitting a signal to the remote controller through a first communication network; receiving a first signal switching command; and switching from the first communication network to a second communication network to transmit the signal to the remote controller.

The present disclosure provides a control method for an UAV (Unmanned Aerial Vehicle) and a remote controller. The method includes transmitting a signal to the remote controller through a first communication network; receiving a first signal switching command; and switching from the first communication network to a second communication network to transmit the signal to the remote controller.

A method may include storing, in a block chain ledger, information associated with an agreement between a first service provider associated with a first network and a second service provider associated with a second network. The method may also include receiving, by a device, first capacity information associated with slices in the first network, storing the first capacity information in the block chain ledger and receiving a message associated with a roaming handoff for a communication session in the first network. The method may further include determining, by the device whether adequate resources are available in the second network to support the communication session and sending, to the first service provider, a message indicating that adequate resources are available in the second network to support the communication session.

A method may include storing, in a block chain ledger, information associated with an agreement between a first service provider associated with a first network and a second service provider associated with a second network. The method may also include receiving, by a device, first capacity information associated with slices in the first network, storing the first capacity information in the block chain ledger and receiving a message associated with a roaming handoff for a communication session in the first network. The method may further include determining, by the device whether adequate resources are available in the second network to support the communication session and sending, to the first service provider, a message indicating that adequate resources are available in the second network to support the communication session.

Systems and methods are disclosed for a 3G gateway. In one embodiment, a system is disclosed, comprising a gateway situated between a 3G radio access network (RAN) and a core network, the gateway providing resource management for a nodeB, and providing routing and node management for another base station, wherein the base station may be configured to provide, as a virtual RNC, radio resource control, power control, ciphering, and multiplexing of multiple users onto a transmission path for a first mobile device attached to the nodeB; the gateway may be configured to relay traffic for a second mobile device attached to the base station; and the gateway may be configured to relay traffic to the core network from both the nodeB and the base station via an IuCS interface and an IuPS interface.