Methods, systems, and devices for wireless communications are described. A receiving wireless device may determine that a data communication is scheduled for the wireless device on a channel of a shared radio frequency spectrum band during a transmission opportunity (TxOP) spanning a plurality of slots. The receiving wireless device may identify a subset of slots from the plurality of slots, wherein the subset of slots is associated with a channel reservation signal by the wireless device. The receiving wireless device may receive the data communication at the wireless device during the TxOP using a beam configuration. The receiving wireless device may perform repeated transmissions of the channel reservation signal based at least in part on the beam configuration during the subset of slots and within a time period associated with receiving the data communication.

Reservation repetition for deafness avoidance

An electronic device may include a network interface, a wireless communication circuit configured to support directional communication, a processor electrically connected with the network interface and the wireless communication circuit, and a memory electrically connected with the processor. The memory may store instructions executed to enable the processor to form a first wireless communication channel with a first external electronic device using the wireless communication circuit, form a second wireless communication channel with a second external electronic device using the wireless communication circuit, determine information associated with positions of the first external electronic device and the second external electronic device, detect communication, via the electronic device, between the first external electronic device and the second external electronic device, and enable the first external electronic device and the second external electronic device to directly connect to each other in the frequency band at least partially based on the information.

Electronic device for controlling data communication of external electronic device and communication system

Provided are a data transmission method and a base station, which relate to the technical field of communications and solve the problem of how to determine an effective measurement area and a measurement cell of a UE in an idle state. The method comprises the following steps: when determining that UE in a connected state has no service data, a base station acquires position information of the UE in the connected state; the base station determines whether the UE is in the connected state according to the historical position information of the UE and the position information in the connected state; determining that the cell where the UE is currently located is a resident cell; when the historical moving direction determined according to the historical position information and the reporting time is the same as the current moving direction determined according to the position information and the reporting time in the connection state, determining an effective measurement area and a measurement cell of the UE in the future specified time according to the historical position information; and the base station sends a release instruction carrying the measurement area and the measurement cell to the UE, so that the UE enters an idle state according to the release instruction and performs measurement according to the measurement area and the measurement cell.

Data transmission method and base station

Embodiments of the present invention relate to a communication method and a terminal. The method comprises: a first terminal receiving first information over a first channel, the first information carrying at least one first sequence of a second terminal, the first terminal supporting a first transmission technology, the second terminal supporting a second transmission technology, and the first sequence of the second terminal being used to indicate that the first channel is used by a terminal supporting the second transmission technology; the first terminal determining first indication information according to the first sequence; and the first terminal sending the first indication information over the first channel, the first indication information being used to indicate that the first channel is used by a terminal supporting the second transmission technology. The communication method provided in embodiments of the present invention can allow terminals supporting different transmission technologies to better coexist on multiple shared channels, and thus prevent different transmission technologies from interfering with each other.

Communication method and terminal

The invention discloses a crop early-stage identification method based on a multi-source remote sensing time sequence image and a convolutional neural network. The crop early-stage identification method comprises the following steps: S1, collecting remote sensing data and crop ground sample data; S2, preprocessing the data; S3, making a training sample; S4, carrying out model time increment training; and S5, according to the crop identify-Date obtained in the step S4, and carrying out early-stage identification on the corresponding crop by utilizing all Sentinel-1A and Sentinel-2 data in the period from the start-Date to the identify-Date; and taking an SCL image in a Sentinel-2 L2A-grade product as non-vegetation mask data to make a crop early-stage distribution map. The multi-source remote sensing data is utilized to increase the frequency of data acquisition in the crop growth season, and the time precision of crop early-stage identification is improved; by utilizing the convolutional neural network architecture Dual-CNN provided by the invention, the problem of inconsistent time sequence length and time interval faced by a single CNN architecture in multi-source remote sensingtime series data application is solved.

Crop early-stage identification method based on multi-source remote sensing time sequence image and convolutional neural network

A communication device for a vehicular radio communications includes one or more processors configured to identify a plurality of vehicular communication devices that form a cluster of cooperating vehicular communication devices, determine channel resource allocations for the plurality of vehicular communication devices that includes channel resources allocated for a first vehicular radio communication technology and channel resources allocated for a second vehicular radio communication technology, and transmit the channel resource allocation to the plurality of vehicular communication devices.

Methods and devices for vehicular radio communications

A central trajectory controller including a cell interface configured to establish signaling connections with one or more backhaul moving cells and to establish signaling connections with one or more outer moving cells, an input data repository configured to obtain input data related to a radio environment of the one or more outer moving cells and the one or more backhaul moving cells, and a trajectory processor configured to determine, based on the input data, first coarse trajectories for the one or more backhaul moving cells and second coarse trajectories for the one or more outer moving cells, the cell interface further configured to send the first coarse trajectories to the one or more backhaul moving cells and to send the second coarse trajectories to the one or more outer moving cells.

Methods and devices for wireless communications

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Methods and devices for vehicular radio communications

Methods and devices for wireless communications