3results about How to "Solve mutual interference" patented technology

The invention relates to the technical field of communication, and particularly provides a multi-base-station cooperative sensing networking planning method and device, a medium and a product. The multi-base-station cooperative sensing networking planning method comprises the following steps: constructing a multi-base-station sensing model in a multi-base-station cooperative sensing scene; the multi-base-station sensing model is used for describing the whole process that the signal is transmitted from each base station, reflected by the unmanned aerial vehicle and received by the base station; based on a multi-base-station sensing model, determining a mapping relation between the station spacing and the sensing performance index; and solving the perception performance boundary based on the mapping relation, and determining the target station spacing based on the perception performance boundary. According to the method, the problem of mutual interference between the base stations is solved through model construction, performance analysis and station spacing optimization, and the mutual interference between the base stations can be minimized while network coverage and performance are ensured, so that the sensing performance and communication quality of the whole network are improved.

The present application relates to a communication-centered RIS-assisted joint beamforming method for ISAC network without cells, and belongs to the technical field of sensing and communication. The present application solves the problem that there is no related work to establish a system model for RIS-assisted ISAC network without cells, and proposes a communication-centered design under the constraint of sensing performance. The present application includes establishing a system model in the RIS-assisted ISAC network without cells; obtaining the signal expression of the communication system and the radar system; establishing an optimization problem for maximizing the communication performance in the RIS-assisted ISAC network without cells; converting the problem into a base station beamforming problem and an RIS phase shift design problem; using the alternating optimization method for optimization, and using the alternating direction multiplier method for sub-problem optimization; judging whether to converge, and if not, repeating step five, and if converging, completing the optimization. The present application first establishes a model for RIS-assisted ISAC network without cells, and proposes a communication-centered design, which meets the scene demand of high communication requirement in the integrated sensing and communication system design.

The application discloses an integrated Bluetooth and ultra-wideband antenna structure for communication and accurate positioning, which is designed for simultaneously realizing the Bluetooth and the ultra-wideband antenna in a narrow space, fully utilizes the wavelength characteristics corresponding to the Bluetooth frequency band and the ultra-wideband frequency band, takes the ultra-wideband antenna radiator with shorter wavelength as the excitation source of the Bluetooth antenna radiator in the form of near-field coupling, and excites the Bluetooth radiator. In the working mode, the ultra-wideband radiator and the antenna reference ground form a non-dipole working mode, and the Bluetooth radiator is coupled and excited to be in a dipole working mode, so that the mutual interference between the two radiators is minimized, and the mutual interference between the two antenna frequency bands is reduced to the maximum extent.