Briefly, example methods, apparatuses, and/or articles of manufacture are disclosed that may be implemented, in whole or in part, to facilitate and/or support one or more operations and/or techniques for an electronically connected environment, such as implemented in connection with one or more computing and/or communication networks, devices, and/or protocols, for example.

Methods, systems, and devices for wireless communications are described. Sidelink UEs may be configured with a synchronization reference signal that may be used by the UEs to synchronize time and frequency resources. A first and second UE may perform a beam sweeping procedure to identify transmit and receive beams to use for communications between the UEs. A synchronization reference signal procedure may be initiated and the first UE may receive a sidelink synchronization reference signal from the second UE using the established receive beam. The UEs may align time and frequency resources for communications between the UEs and the UEs may communicate via the sidelink channel based on the time synchronization, frequency synchronization, or both, determined using the sidelink synchronization signal. In some cases, a sidelink UE may receive multiple synchronization reference signals from multiple sidelink UEs simultaneously, where each synchronization reference signal may include a UE identifier.

A method includes: determining first indication information, where the first indication information indicates a resource location of a second synchronization signal block, and the second synchronization signal block is associated with control information; and sending a first synchronization signal block, where a physical broadcast channel in the first synchronization signal block carries the first indication information.

A method for performing wireless communication by a first device is proposed in an embodiment. The method may comprise the steps of: selecting a synchronization source on the basis of a sidelink synchronization priority; acquiring synchronization on the basis of the synchronization source; transmitting a sidelink-synchronization signal block (S-SSB) to a second device on the basis of the acquired synchronization; transmitting, to the second device, information related to a pattern of a physical sidelink shared channel (PSSCH) demodulation reference signal (DMRS) for decoding a PSSCH through sidelink control information (SCI) on a physical sidelink control channel (PSCCH); mapping the PSSCH DMRS onto a time resource related to the PSSCH on the basis of the information related to the pattern of the SSCH DMRS and an interval of a time resource scheduled for transmission of the PSSCH related to the PSCCH; and transmitting the PSSCH DMRS to the second device through the PSSCH.

The present disclosure describes the system and methods for providing broadband internet access to homes and enterprises using a network of aerial platforms such as drones/UAVs/balloons. The drone communication system is composed of an antenna sub-system, a radio sub-system and a data switching sub-system. Drones form and point beams toward ground terminals in different areas in a space division multiple access scheme. Ground terminals are composed of an antenna sub-system and a radio sub-system. Ground terminals search for the drone from which they receive the strongest signals. Drone and ground terminals comprise of methods and systems to calibrate receive and transmit antenna elements. Drone radio sub-system keeps track of the drone's position and orientation changes and adjust drone's antenna beam accordingly to point to the same location on the ground as the drone moves. Depending on the changes in drone's position and orientation, the drone radio sub-system may switch the antenna aperture and/or the antenna fixture that is used to form a beam toward a specific ground terminal. Drones communicate with the terminals using a space and time division multiple access scheme.

The present invention relates to a scheduling method between terminals for a search resource allocation in direct device to device communication and a device thereof. The present invention relates to, as a search resource allocation method of a terminal which performs device to device (D2D) communication, a proximity searching method and a device thereof, and the method comprises the steps of: transmitting and receiving a signal through a wireless resource determined so as to explicitly or implicitly transmit and receive a contention index of the terminal; selecting a search resource on the basis of a response signal when the response signal is received through the wireless resource; and performing a search for the D2D communication by using the selected search resource.

Disclosed is a method comprising obtaining a plurality of previous clock skews, a reported temperature and a reported time, based on the plurality of previous clock skews, the reported temperature and the reported time, obtaining a prediction of the current clock skew, determining a current clock offset based on the predicted current clock skew, determining a clock adjustment based on the current clock offset and the reported time, and determining a corrected time based on the clock adjustment.

The assumption that every participating vehicle control unit (VCU) or engine control unit (ECU) in a V2X network is synchronized to GNSS time or GPS time (or some other time base) is discarded. An error is assumed for every time entry. For all messages received from a dedicated communication node, a time compensation offset is determined.

According to an embodiment, a communication device is provided in a movable body and is wirelessly communicable with a transceiver unit and another movable body. The communication device includes a transmitter, a receiver, a synchronization unit, a registration unit, and a stop control unit. The transmitter transmits movable body information on the movable body to a predetermined channel. The receiver receives transceiver unit information that the transceiver unit has transmitted to the predetermined channel. The synchronization unit performs synchronization of reception timing when the transceiver unit information can be received. The registration unit registers a communication area of the transceiver unit calculated based on a position where the other movable body receives the transceiver unit information in storage. The stop control unit stops transmission of the movable body information at a reception timing of the transceiver unit information, when a position of the movable body is within the registered communication area.

This application provides a communication method and a communications device. One example method includes: receiving, by a first communications device, first information from a third communications device; and sending, by the third communications device, the first information to the first communications device.