6 results about "Periodic broadcast" patented technology

The application provides a base station data continuation method, system and storage medium for offshore communication interruption, the method comprises the following steps: acquiring ship data, performing feature analysis and classification processing on the acquired ship data, and determining the data priority; adding timestamp information to the processed data, and storing the data according to the priority; connecting the base station to determine the continuation user, recording the user connection duration, and determining the continuation data; calculating the maximum sending rate of the continuation data, and allocating the continuation rate to each user; and performing data continuation according to the continuation rate. The technical scheme of the application can realize the optimization processing of the historical data continuation of the periodic broadcast information, solves the conflict problem caused by the network bandwidth of the historical data and real-time data, and improves the timeliness of the historical data continuation without affecting the real-time data by using the method.

The application discloses an air-ground communication method and device, a terminal and an ATG base station, and relates to the technical field of communication, to solve the problem that the existing air-ground communication system has long-time same-frequency interference on air mobile services. The method comprises the following steps: a terminal determines a first candidate ATG base station group according to position information of the terminal and preset air-to-ground ATG base station list information; the terminal sends a wake-up message to the first candidate ATG base station group to wake up the first candidate ATG base station group and trigger the first candidate ATG base station group to send system messages; and the terminal establishes a communication connection with a target candidate ATG base station in the first candidate ATG base station group when the target candidate ATG base station sends a system message. In this way, the ATG base stations along the air route are changed from a periodic broadcast mode to a long-time silent mode by the terminal waking up and triggering the ATG base stations to broadcast system messages, so that the long-time same-frequency interference of the periodic wide beam of the ground ATG base station on the air mobile services is effectively avoided.

This application discloses a master device, a stylus, a control method, and a stylus search system. The control method includes: upon receiving a stylus search command, the master device initiates reception of a periodic broadcast signal and receives the periodic broadcast signal containing a constant pitch extension from the stylus. Based on the periodic broadcast signal containing the constant pitch extension, the master device calculates the real-time distance between the master device and the stylus using channel sensing technology, and generates a control command corresponding to the distance based on the real-time distance to control at least one of the master device and the stylus to output a prompt signal representing the magnitude of the real-time distance.

The application belongs to the technical field of wireless communication, and particularly relates to a long-distance passive channel shaping method based on a passive intelligent reflecting surface. A transmitting end periodically broadcasts a synchronization reference, drives a RIS control board sliding average correction symbol counter, and aligns an OFDM symbol boundary. A reflection pattern is preloaded, and a specified target symbol and a safety window are submitted in time. Delayed samples are collected according to pilot coverage switching, and a stable upper limit is obtained according to quantile values and error margins. According to this, a window is selected in a CP, a reserved symbol or a blank section, and a reflecting unit is synchronously updated through global latching / pointer exchange in the window. The method limits switching disturbance in the safety window, suppresses invisible ICI, reduces error codes, and improves throughput stability.

This invention discloses a method for controlling synchronized lighting effects of multiple LED strips based on BLE periodic broadcasting, belonging to the field of stage lighting control technology, and applied to a system consisting of one BLE host and up to 32 Bluetooth LED strips. The method includes: the host automatically forming a network via BLE periodic broadcasting with response, assigning unique numbers to the LED strips and broadcasting the total number of LED strips; the host encrypting the lighting effect data and broadcasting it at a fixed period; after receiving the data, the LED strips divide the complete stage pattern into a corresponding number of partitions based on the total number of LED strips, and calculate the lighting effect parameters of their respective partitions based on their own numbers; all LED strips synchronously display their lighting effects according to a timestamp. This invention utilizes the fixed interval characteristic of BLE periodic broadcasting, combined with automatic networking and partitioning algorithms, to solve the problems of low synchronization accuracy, cumbersome networking, and high communication load in existing multi-LED strip lighting effect control, achieving high-precision, low-load, and flexible deployment stage lighting effect synchronization control.