A base station, a processor thereof, and a communication control method thereof receive a notification from a first user terminal before starting direct device to device (D2D) communication, the notification indicating a desire for performing D2D communication, receive a measurement report including results of measurement of a cell reference signal from the first user terminal, and based on the measurement report, determine to cause the first user terminal to perform D2D communication, perform a process for starting the D2D communication between the first and second user terminals, receive a first data amount notification indicating an amount of first data to be transmitted from the first user terminal to the second user terminal, and based on the first data amount notification, allocate first radio resources to the first user terminal, where the allocated first radio resources are used by the first user terminal to transmit the first data.

A base station (BS) circuitry, configured to adapt operation of a user equipment (UE) between a stand-alone operation mode and a mobile network operator (MNO) assisted operation mode, includes: a first interface connectable to an MNO network; a second interface connectable to the UE; and a BS controller, configured to: transmit a first register message via the first interface to the MNO network, wherein the first register message indicates a request to operate the UE in at least one licensed frequency band of the MNO network, and signal a hand-over via the second interface to the UE, wherein the hand-over indicates a transition from operating the UE in at least one frequency band of the stand-alone operation mode to operating the UE in the at least one licensed frequency band of the MNO assisted operation mode.

A base station (BS) circuitry, configured to adapt operation of a user equipment (UE) between a stand-alone operation mode and a mobile network operator (MNO) assisted operation mode, includes: a first interface connectable to an MNO network; a second interface connectable to the UE; and a BS controller, configured to: transmit a first register message via the first interface to the MNO network, wherein the first register message indicates a request to operate the UE in at least one licensed frequency band of the MNO network, and signal a hand-over via the second interface to the UE, wherein the hand-over indicates a transition from operating the UE in at least one frequency band of the stand-alone operation mode to operating the UE in the at least one licensed frequency band of the MNO assisted operation mode.

Systems and methods for switching communication pathways between a mobile device and connected “Internet of Things” (IOT) device are described to improve scalability and communication between devices. An application on the mobile device may determine whether local or virtual local endpoints are available to route communications without using a remote IoT server endpoint. Communications and updates from multiple co-located, but not necessarily user-related connected devices may be aggregated, and sent to a remote IoT server to reduce the peak load scalability requirement of the server.

Systems and methods for switching communication pathways between a mobile device and connected “Internet of Things” (IOT) device are described to improve scalability and communication between devices. An application on the mobile device may determine whether local or virtual local endpoints are available to route communications without using a remote IoT server endpoint. Communications and updates from multiple co-located, but not necessarily user-related connected devices may be aggregated, and sent to a remote IoT server to reduce the peak load scalability requirement of the server.

A method for processing radio link failure includes: determining that a sidelink (SL) unicast radio link connection with at least one second user equipment (UE) fails; and performing SL data transmission with the at least one second UE through a third UE.

A terminal includes: a control unit configured to connect to another terminal in an RRC (Radio Resource Control) layer; and a transmitting unit configured to transmit data to the another terminal. In a case where the another terminal or the terminal itself performs at least one of transmission, reception, and sensing during a specific timing, the control unit controls an operation related to the connection in the RRC layer, based on the specific timing.

A terminal includes: a control unit configured to connect to another terminal in an RRC (Radio Resource Control) layer; and a transmitting unit configured to transmit data to the another terminal. In a case where the another terminal or the terminal itself performs at least one of transmission, reception, and sensing during a specific timing, the control unit controls an operation related to the connection in the RRC layer, based on the specific timing.

A communication control method used in a cellular communication system includes determining, by a remote user equipment having sidelink connection with a relay user equipment, a network communication state between the remote user equipment and a cellular communication network, and performing, by the remote user equipment, control related to sidelink communication between the remote user equipment and the relay user equipment, based on the network communication state.

Techniques for power savings by a wireless device. The technique including receiving, by a first wireless device, a set of sidelink resources for communicating directly with a second wireless device from a wireless node, determining, by the first wireless device, to transmit sidelink data to the second wireless device, receiving sidelink coordination information, the sidelink coordination information including discontinuous reception (DRX) configuration information of the second wireless device, transmitting a sidelink resources request to the wireless node, the sidelink resources request including assistance information based on the received sidelink coordination information, receiving a sidelink resources grant from the wireless node, and transmitting the sidelink data based on the sidelink resources grant.