37 results about "Communication system design" patented technology

The disclosure relates to a communication technique for converging Internet of things (IoT) technology with 5th generation (5G) communication systems designed to support a higher data transfer rate beyond 4th generation (4G) systems, and a system therefor. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. A terminal operation method related to each universal subscriber identity module (USIM) when dual connectivity is established for a terminal supporting multi-USIM, and an apparatus therefor are provided.

The invention discloses a digital aeronautical communication system design based on a cellular-free network architecture, which belongs to the technical field of aeronautical communication and comprises an aeronautical communication system and a communication service execution module. The aeronautical communication system comprises a network infrastructure and a communication link layer and is responsible for providing underlying physical connection and transmission environment support. The communication service execution module covers a network protocol and information interaction and task execution process; the network infrastructure adopts distributed AP topology planning, airport and route area APs are deployed in a differentiated manner, and parameters are dynamically adjusted in combination with a three-dimensional coverage optimization model; and software and hardware modules comprise ground APs and airborne terminals, so that the problems caused by high-speed movement are solved. The communication link layer carries out multi-dimensional channel modeling, and LDPC code coding and dynamic cluster generation are adopted. The working process comprises the steps of initialization, cluster construction, state monitoring and the like, stable communication in the whole flight process is achieved, and the aviation communication efficiency and safety are improved.

The invention discloses an integrated sensing and communication system design method and system based on a flexible antenna array, and relates to the technical field of communication. According to the method, an ISAC system comprising a flexible antenna array FAA base station, a single-antenna user and a sensing target is constructed, and the FAA can adaptively adjust the shape in the horizontal direction. The base station can communicate with the User and perceive a target at the same time, and jointly communicate and perceive signals to obtain a channel vector and a target echo signal. The characteristics of the antenna are determined through omnidirectional and directional antenna modes, and the sensing performance is measured by using a sensing channel and a Cramer-Rao bound CRB (Cramer-Rao Boundary). An optimization problem is constructed with the goal of minimizing CRB and ensuring the minimum communication rate of a user, and an S lemma and a semi-definite relaxation SDR are used to convert a related design problem into a convex subproblem for solving, so that communication and perception collaborative optimization is realized. Through the flexible antenna array, the sensing and communication performance of the system is remarkably improved, and the resource utilization rate is improved.

The invention discloses an unmanned aerial vehicle communication-oriented multi-transform-domain broadband transmission waveform, which is characterized by comprising four steps of unmanned aerial vehicle scene modeling, representation of a conversion relation between transform domains and an interference signal, design of a communication system based on an MDBT modulation waveform and implementation of an FPGA based on the MDBT. The unmanned aerial vehicle scene modeling comprises channel modeling and signal transceiving relation modeling; according to the method, compatibility of time-frequency doubly-selective channels, interference and waveform design faced by an unmanned aerial vehicle scene is considered, different transform domains are integrated to give full play to potential of waveform design based on a two-dimensional transform domain, a novel broadband waveform is provided, anti-interference capability and time-frequency doubly-selective channel resistance are considered, and the method has a wide application prospect. The method has certain flexibility and advantages, the performance of the method is superior to that of an existing broadband waveform in a time-frequency doubly-selective channel with interference, and the effectiveness and hardware realizability of the broadband waveform are proved through simple verification of an FPGA (Field Programmable Gate Array).

The present invention discloses a spatial adaptive transmission method and system based on multi-objective reinforcement learning, belonging to the field of space communication technology. The system is composed of a link state monitoring module, a performance evaluation module, a link state prediction module, a reinforcement learning agent module, a parameter adjustment module, a transmission execution module and a data storage module, wherein the reinforcement learning agent module is used as a core decision-making unit to output the optimal transmission parameter configuration according to the link state and performance evaluation results; the transmission method includes the steps of reinforcement learning model construction and training, real-time link state monitoring, future link state prediction, performance evaluation, reinforcement learning decision-making, dynamic parameter adjustment and transmission execution. The present invention realizes the intelligent adaptation of the DTN protocol in a complex space communication environment through multi-objective reinforcement learning, significantly improves the transmission efficiency, reliability and resource utilization, is applicable to various space communication scenarios, and provides a new solution for the design of future space communication systems.

The application discloses a communication system design method of a dynamic linked reconfigurable holographic surface and belongs to the wireless communication technical field.The application realizes the method as follows: 1, a single-source transmitter and a receiver are constructed, the transmitter is provided with a precoder, a switch selection link and a reconfigurable holographic surface, and the receiver is provided with a combiner, a switch selection link and a reconfigurable holographic surface; 2, a digital beam forming signal is input to the holographic antenna through a feed source selected by the switch selection link to form a transmitting signal; 3, a channel matrix is acquired, the feed source position is selected by utilizing an interactive entropy iteration, digital beam forming is realized through power distribution, the RHS unit excitation is realized by utilizing an element-by-element iteration, and the beam forming of the overall signal is completed; 4, a receiving signal is acquired by the receiver through a RHS combiner and a digital signal combiner mode; compared with the prior art, the application improves the communication transmission rate of the reconfigurable holographic surface in the random channel transformation scene.

The present invention relates to an assistive communication system designed for nonverbal individuals to effectively communicate their needs, emotions, and requests to caregivers. The system comprises a wearable user communication device and a wirelessly connected caregiver band. The user device features a plurality of buttons, each representing a communication category, and includes audio output, vibration feedback, and LED illumination upon activation. The caregiver band receives signals from the user device and provides haptic, visual, and auditory alerts to notify the caregiver of the nonverbal individual's request. The system supports customizable touchscreen buttons, adjustable layouts, and multi-language options. The invention provides real-time, intuitive communication, enhancing the independence and safety of nonverbal users while facilitating prompt caregiver responses.

The invention discloses a wireless energy supply OAM communication system design and optimization method based on a time switching protocol, and relates to the technical field of communication, and the method comprises the steps: obtaining array configuration data of a base station and energy limited equipment, calculating channel parameters, and determining power distribution; generating a modulation matrix according to the OAM mode order, and dividing a time period into an energy transmission time period and an information transmission time period; energy acquisition data and link capacity are calculated, an optimal time switching factor is determined by adopting a convex optimization method by taking maximization of uplink total capacity as a target under the condition that the constraint of a service quality threshold value is met, and finally, a base station is controlled to complete cooperative transmission of energy and information; the method has the advantages that through deep fusion of OAM mode multiplexing and TS protocols, dynamic optimal balance of energy transmission and information transmission is achieved on the premise that the service quality is guaranteed, and the spectrum efficiency and the energy efficiency of a communication system are improved.

The invention relates to the technical field of satellite design, and provides an ultra-low power consumption space-based internet-of-things communication system design method, which realizes direct communication with a satellite through ultra-low power consumption general terminal equipment through software upgrading of existing internet-of-things terminal electronic equipment and collaborative enhancement design of a spaceborne antenna and a communication machine. Comprising the following steps: S1, designing a satellite communication system: designing hardware and software structures of the satellite communication system, including satellite equipment, ground equipment, a communication protocol and the like, and cooperatively designing a multi-port communication machine and an antenna array: adopting a high-gain and orthogonal design for a multi-beam array antenna, reducing the transmitting power of ground terminal equipment, positioning the position of a terminal, and improving the communication efficiency; s2, communication protocol design: designing satellite-ground communication private protocols including a data transmission protocol, a connection management protocol and the like, and S3, communication data management: establishing a feed data transmission link with a satellite through a gateway station, and supervising communication permission and flow of ground terminal equipment.

The application provides a dual-path redundant communication architecture design method of port intelligent equipment, and belongs to the field of industrial Internet of Things communication system design. The dual-path redundant communication architecture design method comprises a design stage, a monitoring stage, an optimization stage and a recovery stage. Firstly, a dual-path communication architecture is constructed in the design stage; secondly, a path state monitoring and scoring mechanism is established in the monitoring stage; thirdly, dynamic task scheduling is performed in the optimization stage; and finally, path switching and automatic back switching are realized in the recovery stage. The application is divided into four stages of design, monitoring, optimization and recovery according to the order of communication architecture design, can solve the problems of low link reliability, untimely fault switching and insufficient communication resource utilization efficiency in the existing communication architecture, and improve the communication stability and system robustness of port intelligent equipment in a complex environment.

This invention relates to a coherent multichannel transceiver system and method based on RFSoC, belonging to the field of electronic information technology. Specifically, it is a coherent multichannel transceiver channel based on RFSoC, which can be used in radar system design and multichannel communication system design. This invention comprises a multichannel system consisting of multiple RFSoC boards. Each board uses an RFSoC chip to generate and receive multiple channels of signals. The multiple boards are interconnected through a main control timing module and a clock reference module, which provide clock reference signals and synchronization timing pulse signals. Within each board, the combination of the clock signal and the clock reference signal, along with a calibration and compensation module, achieves high-precision phase coherence and timing synchronization between the multiple boards. Each RFSoC internally achieves phase coherence of multiple transceiver channels through measurement and adjustment mechanisms.

The application discloses a kind of based on the design method of security wireless communication system of polarization modulation strategy, introduces camouflage image in the process of encoding and decoding and utilizes polarization mask key to encrypt target information, and adopts polarization modulation strategy to send the camouflage image containing encryption information and polarization mask key simultaneously;Target user extracts real target information from the camouflage information received by corresponding decoding strategy, while eavesdropper cannot obtain accurate target information;The method can simultaneously encrypt independent wireless communication in multiple channels with different polarization encoding strategies;By using different polarization mask keys and polarization encoding strategies, the security of the system can be further improved. The encryption scheme proposed integrates computation algorithm encryption and physical layer encryption, has the advantages of high security, large channel capacity, strong camouflage ability, etc., and is expected to play an important role in future secure wireless communication.

The invention discloses a service flow processing method, a communication flow processing method and a computer program product. The method relates to the field of communication system design in the field of cloud communication, and comprises the following steps: in response to a received processing instruction of a first service process, obtaining first configuration information of the first service process, the first configuration information comprising processing steps of a plurality of functional components in the first service process; determining a first running server which is successfully started in the running server cluster; and based on the first configuration information, processing the plurality of functional components in the first service process through the first operation server. According to the method and the device, the technical problem of inconsistent states of the service process in the running server cluster is solved.

The disclosure relates to dual audio communication system designed for use with two-way radios, including Bluetooth-enabled two-way radios. The system enhances the functionality of traditional PTT systems by allowing users to communicate effectively without the need to be physically near the radio or to wear a Bluetooth headset. The subject matter includes methods for programming the Bluetooth-enabled radio to pair with a Bluetooth headset and / or a remote Bluetooth PTT button and provide dual audio play using the radio speaker and the headset, or other speakers. It allows for the simultaneous playback of audio through both the radio's speaker and the Bluetooth headset, ensuring that users can hear incoming communications regardless of their proximity to the radio or whether they are wearing the headset. The system provides flexibility in how PTT communications are initiated and received, catering to various user environments and scenarios, such as operating a vehicle or wearing Bluetooth-enabled hearing aids.

The present invention belongs to the field of wireless communication technology. The present invention proposes a design method for a non-orthogonal multiple access communication system based on a simultaneous transmission and reflection metasurface. By introducing a smart metasurface that can transmit and reflect at the same time to assist the base station in sending information to non-orthogonal users, the near-end user can also receive the information sent from the base station through a direct link. The design method includes establishing a NOMA communication system design model based on a simultaneous transmission and reflection metasurface, giving the received signal expression of the near-end user and the far-end user and detecting the signal-to-noise ratio, and deriving the interruption probability theoretical expression and diversity order of the near-end user and the far-end user by processing the channel parameters of the cascade channel through the Laguerre series and the coherent phase shift. Compared with the traditional decoding and forwarding relay, amplification and forwarding relay and smart metasurface-assisted orthogonal multiple access communication system, the method of the present invention enhances the interruption probability performance and traversal performance, and has good application value.

This invention discloses a comprehensive evaluation method for wireless channel delay spread based on a dual correlation test in the field of wireless communication and channel modeling technology. This method includes the following steps: data acquisition and preprocessing, correlation calculation, data merging and trend analysis, and result presentation and decision-making basis. By combining Pearson and Spearman correlation coefficients, this method analyzes the impact of physical environment parameters on RMS_DS under LOS and NLOS conditions, improving the comprehensiveness and accuracy of correlation analysis and providing a reliable basis for wireless communication system design and optimization.

The present invention relates to a new design method for an intercellular communication system, an intercellular communication system designed according to the method and its use. Specifically, the intercellular communication system of the present invention is composed of a signal sending element and a signal receiving element, wherein the signal sending element and the signal receiving element are located in different cells; wherein the signal sending element is a signal molecule biosynthesis gene expression cassette; the signal receiving element comprises an allosteric transcription factor expression cassette and an inducible promoter; wherein the allosteric transcription factor interacts with the signal molecule, and the inducible promoter comprises an operating sequence that interacts with the allosteric transcription factor; wherein the signal molecule is selected from one or more of 2,4-diacetylphloroglucinol (DAPG), p-coumaroyl-homoserine lactone (pC), isovaleryl-homoserine lactone (IV), salicylate (Sal), methicillin furan (MMF) and naringenin (NG).

The application discloses a kind of multi-robot intelligent metasurface auxiliary lossy communication system optimization methods, first, under the framework of relevant Rayleigh channel, the spatial correlation of base station-IRS-user link is jointly modeled, the coupling channel matrix between the IRS reflecting unit carried by any robot is constructed using multidimensional correlated complex Gaussian variable, the distortion constraint is converted into SNR threshold using Shannon lossy theorem, and the outage probability closed form is derived;Second, the joint optimization is modeled as multi-agent Markov decision process MAMDP, and the IRS carried by each robot is an independent agent, which is centrally trained and distributedly executed using CTDE-TD3 algorithm;Finally, a low-complexity outage lower bound is given to realize real-time prediction.The application can realize multi-IRS cooperative regulation with low complexity and high robustness, significantly reduce the system outage probability, and provide theoretical support and practical tools for AI-oriented 6G communication system design and real-time optimization.

It discloses a communication system design method based on an intelligent omni-surface, comprising step 1: constructing an optimization problem by minimizing a total power consumption of the communication system as an objective function, the communication system being a communication system based on an intelligent omni-surface; step 2: setting a constraint condition for the optimization problem constructed in the step 1, the constraint condition comprising a minimum rate constraint of a user, a phase shift constraint of the intelligent omni-surface and a length constraint of an allocated time slot; and step 3: solving the optimization problem after setting with the constraint condition to obtain solution for minimizing the total power consumption of the system. When lowest rate requirements of all users are met, the method reduces the total power consumption of the system and realizes omnidirectional coverage of a communication area, and has a good application value.

The disclosure relates to dual audio communication system designed for use with two-way radios, including Bluetooth-enabled two-way radios. The system enhances the functionality of traditional PIT systems by allowing users to communicate effectively without the need to be physically near the radio or to wear a Bluetooth headset. The subject matter includes methods for programming the Bluetooth- enabled radio to pair with a Bluetooth headset and / or a remote Bluetooth PIT button and provide dual audio play using the radio speaker and die headset, or other speakers. It allows for the simultaneous playback of audio through both the radio's speaker and the Bluetooth headset, ensuring that users can hear incoming communications regardless of their proximity to the radio or whether they are wealing the headset. The system provides flexibility in how PTT communications are initiated and received, catering to various user environments and scenarios, such as operating a vehicle or wearing Bluetooth-enabled hearing aids.

The invention discloses an air-to-ground communication channel modeling method based on a random trajectory of an unmanned aerial vehicle, and the method comprises the steps: generating the random trajectory of the unmanned aerial vehicle through employing a smooth steering random movement model; a grid-based large-scale parameter generation method is adopted to generate large-scale parameters, and then small-scale parameters such as time delay, power, departure azimuth angle, arrival azimuth angle, departure pitch angle, arrival pitch angle and cross polarization ratio are generated; performing space-time evolution analysis of the cluster; calculating a channel impulse response CIR and a channel matrix; simulating and calculating a space-time correlation function STCF, a root-mean-square delay spread RMS DS, a stationary time interval SI and a channel capacity, and judging the influence of different unmanned aerial vehicle trajectories on a channel. Based on the random trajectory of the unmanned aerial vehicle, the influence of different unmanned aerial vehicle trajectories on the channel is considered, the characteristics of the spatial domain and the time domain of the channel are comprehensively analyzed, and the method has important significance for guiding the design of an air-to-ground communication system of the unmanned aerial vehicle.

The application provides a code word mapping method, which can improve the decoding performance and energy allocation fairness of a communication system designed by combining a multi-ary channel coding technology and an SCMA technology. The method comprises the following steps: obtaining a first mapping relationship of at least one user on at least two resource blocks (S301), determining a second mapping relationship of the at least one user on the at least two resource blocks (S302), and determining a third mapping relationship of the at least one user on the at least two resource blocks according to a peak-to-average power ratio corresponding to the second mapping relationship of the at least one user on the at least two resource blocks (S303). The first mapping relationship of each user on each resource block is composed of at least two corresponding relationships, and each corresponding relationship is a corresponding relationship between a sparse code division multiple access (SCMA) code word and a multi-ary channel coding symbol. The criterion value is used to measure the possibility of the SCMA code word being decoded incorrectly and the multi-ary channel coding symbol being decoded incorrectly. The peak-to-average power ratio is a peak-to-average power ratio of the energy of the SCMA code word after superposition on the at least two resource blocks.

A fire-resistant in-building wireless communication system designed to maintain functionality under extreme conditions, including temperatures exceeding 1850° F. and water spray exposure. The system includes a dual wire assembly comprising a first and second wire separated by a predetermined distance to transmit radio frequency (RF) signals. The wires are formed from high-temperature resistant materials, such as copper or metallic alloys, and are secured by separator nodes made of fireproof materials like furnace cement or silica cement. The system includes a high-temperature resistant antenna for RF signal radiation, supported by an antenna support node, and tensioned via pivot nodes equipped with adjustable mechanisms. The assembly is further encapsulated by a fire-resistant wire wrap to prevent electrical shorts and interference.

This application provides a P-NOMA-enabled design method for a PASS-D2D communication system, relating to the field of communication system technology. This application extends PASS to a PASS-D2D cooperative framework, designs a two-timeslot transmission protocol, and introduces MRC and LC merging strategies respectively. The closed-form solution for the ergodic rate of each scheme is derived, and the accuracy of the analytical results is verified through simulation. D2D cooperation can effectively alleviate the bottleneck of weak users and improve system throughput. The combination of P-NOMA and cooperative merging can further release gains, with P-LC typically performing better in interference-sensitive areas. Power allocation, user spacing, and overlap ratio jointly determine the upper limit of cooperative gains and the interference-dominant range. Reasonably controlling the near-end overlap ratio helps avoid rate degradation caused by excessive interference coupling. In summary, this application provides an interpretable theoretical basis and numerical support for the parameter design and deployment optimization of PASS and its cooperative extension systems.

The application discloses a kind of anisotropic compressible turbulent light beam transmission scintillation index simulation method, belong to optical transmission and turbulent effect analysis technical field.The present application is aimed at the problems existing in prior art, by introducing anisotropic factor to characterize the distortion degree of turbulent vortex perpendicular to the propagation direction, based on Boltzmann factor equation modified compressible turbulent spectrum to construct anisotropic refractive index power spectrum;Weak fluctuation and strong fluctuation condition are established by Rytov theory and modified Rytov theory respectively to establish the scintillation index analytical model of Gaussian beam transmission;The influence law of each parameter on scintillation index is analyzed by numerical simulation.The application can accurately describe the light beam transmission characteristics in anisotropic compressible turbulent flow, reveals the regulation of anisotropic factor in weak fluctuation condition to inhibit scintillation and in strong fluctuation condition to delay scintillation saturation, and provides a theoretical basis for optical imaging and communication system design of high-speed target in compressible turbulent environment.

The application relates to the technical field of wireless communication, in particular to a smart reflecting surface assisted multi-cell cooperation distributed communication system design method. The technical scheme of the application is that a message passing algorithm based on Bayesian estimation is used for precoding processing of a transmitting end and a smart reflecting surface, so that the bottleneck of low coverage capacity and low edge user spectrum efficiency of an existing multi-cell cellular network is broken through.

The invention discloses a communication system function performance collaborative verification architecture and method based on a UVM, the communication system function performance collaborative verification architecture based on the UVM comprises a to-be-tested communication system design Top DUT, a top verification environment Topenv and an interface, and the to-be-tested communication system design Top DUT and the top verification environment Topenv are connected through the interface and communicate with each other; the communication system function performance collaborative verification method based on the UVM verifies the system by using the communication system verification architecture. Compared with traditional function verification, through function and performance cooperative verification, an innovative solution is brought to verification work of a communication system, and the research and development period of a communication chip is shortened.

The invention claims to protect an unmanned aerial vehicle air-ground urban environment channel modeling and prediction method based on measured data, and aims to solve the problems that unmanned aerial vehicle air-ground channel modeling is disjointed with an actual scene, the path loss prediction precision is low, and integrated system support is lacked. And efficient and accurate modeling and prediction of the air-ground channel of the unmanned aerial vehicle in an urban environment are realized. The method comprises the following steps: step 1), constructing an air-ground channel measurement system, carrying out urban environment multi-band actual measurement, and constructing a channel data set; step 2), carrying out statistical channel modeling based on measured data, and analyzing large-scale and small-scale fading characteristics; step 3), designing a path loss prediction model PBANET based on deep learning; the unmanned aerial vehicle air-to-ground channel modeling and predicting method can be applied to communication system design and optimization of scenes such as unmanned aerial vehicle disaster rescue and emergency communication, compared with an unmanned aerial vehicle air-to-ground channel modeling method of CN120090745B, the unmanned aerial vehicle air-to-ground channel modeling and predicting method is more suitable for urban air-to-ground communication scenes, and modeling precision and engineering practicability are remarkably improved.

The disclosure relates to a communication technique for converging Internet of things (IoT) technology with 5th generation (5G) communication systems designed to support a higher data transfer rate beyond 4th generation (4G) systems, and a system therefor. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. A method for dynamically allocating a resource to a network slice in a wireless communication system is provided.

The disclosure relates to a communication technique for converging Internet of things technology with 5G communication systems designed to support a higher data transfer rate beyond 4G systems, and a system therefor. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The disclosure provides a method and a device for preventing a data decompression error in a next-generation mobile communication system.