A server device can effectively apply a network coexistence service to a mobile body whose location can change every moment. The server device includes a control unit configured to provide a plurality of lists in which an available frequency and transmission power of the frequency are described for each predetermined range determined on a basis of a predetermined criterion so that the frequency is not set in an overlapped manner in the same predetermined range, to an external device which uses the frequency.

A method for data communication includes determining that a downlink receiver is not receiving downlink data from a movable object based on a state of the downlink receiver, generating first synchronization information in response to determining that the downlink receiver is not receiving the downlink data from the movable object, transmitting uplink data to the movable object, and generating second synchronization information in response to completion of uplink data transmission. The first synchronization information is provided to the downlink receiver to prevent operation of the downlink receiver, and the second synchronization information is provided to the downlink receiver to allow operation of the downlink receiver.

Portable communications device and method for full duplex operation in a time division multiple access radio system. The method includes providing a switch for connecting one of a first voltage controlled oscillator and a second voltage controlled oscillator to a synthesizer. The synthesizer generates a first frequency when connected to the first voltage controlled oscillator and generates a second frequency when connected to the second voltage controlled oscillator. The method also includes controlling, using an electronic processor coupled to the switch, the switch to connect the first voltage controlled oscillator to the synthesizer for a first timeslot, and controlling, using the electronic processor, the switch to disconnect the first voltage controlled oscillator from the synthesizer and connect the second voltage controlled oscillator to the synthesizer for a second timeslot. The second timeslot is immediately adjacent to the first timeslot.

A receiver determines whether an outbound carrier frequency among a plurality of outbound carrier frequencies, as received, includes interference. Based at least in part on a result of the determining, a new outbound carrier frequency is selected for the receiver. Optionally, the receiver sends an interference report to a system controller.

Apparatuses and methods are disclosed for SIB1-NB transmission. In one embodiment, a method performed by a network node configured to include a scheduling information parameter in a master information block, MIB, and communicate the MIB to a wireless device, the scheduling information parameter usable to schedule a system information block type 1 for narrow band communication, SIB1-NB, for a time division duplex, TDD transmission is provided. The method comprising indicating the SIB1-NB scheduling information for TDD at least in part by a value of the scheduling information parameter being associated with a predefined entry in at least one TDD-specific table, the indicated SIB1-NB scheduling information including: at least one subframe to use for the SIB1-NB transmission; a number of repetitions of the SIB1-NB transmission; and a transport block size, TBS, to use for the SIB1-NB transmission.

Systems, and method and computer readable media that store instructions for slowing or stopping a progress, towards a target, of a drone controlled by a remote control unit.

Systems, and method and computer readable media that store instructions for slowing or stopping a progress, towards a target, of a drone controlled by a remote control unit.

Systems and methods for pseudo random beacon signal scheduling and data scheduling to improve network conditions within a wireless network are disclosed herein. In one embodiment, a system for providing a wireless asymmetric network, comprises a hub having one or more processing units and at least one antenna for transmitting and receiving radio frequency (RF) communications in the wireless asymmetric network. A plurality of sensor nodes each have a wireless device with a transmitter and a receiver to enable bi-directional RF communications with the hub in the wireless asymmetric network. The system determines dynamic beacon frequency control with a variable delay duration for starting at least one superframe of the hub.

A communication device of an embodiment includes one or more processors. The processors synchronize time between the communication device and a different communication device using data transmitted and received by time division multiple access. The processors determine the end timing of carrier-sensing in a time slot of the time division multiple access. The processors control carrier-sensing to end at a determined end timing. The processors generate data including timing information, allowing identification of the determined end timing, as data to be transmitted to the different communication device.

A receiver determines whether an outbound carrier frequency among a plurality of outbound carrier frequencies, as received, includes interference. Based at least in part on a result of the determining, a new outbound carrier frequency is selected for the receiver. Optionally, the receiver sends an interference report to a system controller.