A method of reducing interference in a mobile communication system caused by a first user equipment, UE, device operating in a cell at a significantly higher altitude than other UE devices in the cell so as to cause interference, the method comprising detecting that the first UE device is operating at an altitude considered by the mobile communication system to be an extraordinary altitude; and reducing interference caused by the first UE device operating at the extraordinary altitude by controlling the operation of the first UE device.

A method of reducing interference in a mobile communication system caused by a first user equipment, UE, device operating in a cell at a significantly higher altitude than other UE devices in the cell so as to cause interference, the method comprising detecting that the first UE device is operating at an altitude considered by the mobile communication system to be an extraordinary altitude; and reducing interference caused by the first UE device operating at the extraordinary altitude by controlling the operation of the first UE device.

A terminal apparatus includes a receiver configured to receive a radio resource control (RRC) reconfiguration message from a base station apparatus, and a controller configured to configure a parameter based on the parameter included in the RRC reconfiguration message. The parameter includes at least identity information of a target cell and a configuration of a subcarrier spacing, and the configuration of the subcarrier spacing is configured for each of the target cells.

A terminal apparatus includes a receiver configured to receive a radio resource control (RRC) reconfiguration message from a base station apparatus, and a controller configured to configure a parameter based on the parameter included in the RRC reconfiguration message. The parameter includes at least identity information of a target cell and a configuration of a subcarrier spacing, and the configuration of the subcarrier spacing is configured for each of the target cells.

Apparatuses, methods, and systems are disclosed for indicating data status to a target base unit. One apparatus includes a transceiver that communicates with a remote unit and a processor that determines to perform a conditional handover of the remote unit to a target base unit. The processor sends a conditional handover command to the remote unit, the conditional handover command including at least one condition the remote unit is to monitor for fulfillment prior to handing over to the target base unit. The processor receives uplink data from the remote unit after sending the conditional handover command and forwards the uplink data to the target base unit. The processor also sends an end marker to the target base unit in response to completing the forwarding of the uplink data.

A UE in a wireless network determines whether it has been configured with carrier(s) to be used for secondary serving cell carriers in the wireless network. The UE performs, using a selected one of the carrier(s) as a selected secondary serving cell carrier, a request for a cell on the selected secondary serving cell carrier to become a secondary serving cell for the user equipment. The UE receives a response from the cell that the request to have the cell become the secondary serving cell for the user equipment was successful. The request is received on the carrier at a cell in the wireless network to have the cell become the secondary cell for the user equipment. The cell indicates to the UE that the request to have the cell become a secondary cell for the user equipment was successful.

Systems, methods, and computer-readable media are provided for optimizing user plane node selection process during a process of handing over user equipment between two communication networks. In one aspect, a method includes receiving, at a network component, a session creation request for handing over the user equipment, the user equipment having a current active communication session within a first communication network with a first node of the first communication network, the session creation request including an identifier of the first node; receiving, at the network component, a list of candidates to serve as a user plane serving gateway for the user equipment in the second communication network; and selecting, by the network component and based on at least the identifier of the first node, the first node from the list of candidates to serve as the user plane serving gateway for the user equipment in the second communication network.

Systems, methods, and computer-readable media are provided for optimizing user plane node selection process during a process of handing over user equipment between two communication networks. In one aspect, a method includes receiving, at a network component, a session creation request for handing over the user equipment, the user equipment having a current active communication session within a first communication network with a first node of the first communication network, the session creation request including an identifier of the first node; receiving, at the network component, a list of candidates to serve as a user plane serving gateway for the user equipment in the second communication network; and selecting, by the network component and based on at least the identifier of the first node, the first node from the list of candidates to serve as the user plane serving gateway for the user equipment in the second 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.

A device and a method for reducing power consumption of an electronic device is provided. The electronic device includes a display device, a battery, and at least one processor configured to be operatively connected to the display device, wherein the processor may determine whether to perform a handover to a second communication network, based on whether the display device is activated and a data throughput, in a state of connection to a first communication network among a plurality of communication networks supportable by the electronic device, and perform a handover to the second communication network when it is determined to perform the handover to the second communication network.