1426 results about "Signal strength" patented technology

A technology for handover between a non-terrestrial network and a terrestrial network may be provided. This method for a user equipment (UE) may be provided, the method comprising the steps of: determining whether or not a measurement triggering condition for measurement targets is satisfied; if the measurement triggering condition is satisfied as the result of the determination, measuring received signal strengths for the measurement targets; transmitting the measured received signal strengths to a base station; receiving, from the base station, a handover command based on the received signal strengths; and performing handover with one of the measurement targets, according to the handover command.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. Disclosed are a method and a device for supporting access by a terminal to a NES cell, the method comprising the steps of: receiving, in a radio resource control (RRC) inactive mode or an RRC idle mode, system information from a camp-on first cell; acquiring, from the system information, system information about a second cell that does not perform system information transmission; determining, on the basis of threshold value information about the reception signal strength included in the system information about the second cell, whether a condition for access to the second cell is satisfied; and performing, if the condition is satisfied, a random access procedure for the access to the second cell.

The invention provides a low-orbit satellite communication terminal network performance dynamic tuning method and system, and relates to the technical field of low-orbit satellite communication. Comprehensive data such as relative movement of a satellite and a terminal and signal transmission loss are acquired; preprocessing the integrated data, inputting the preprocessed integrated data into a time sequence prediction model containing LSTM and Transform, generating a signal quality and intensity index sequence and a link stability level in a future preset time window, and carrying out dynamic optimization based on the generated indexes, including adjusting a terminal modulation mode according to the signal quality; combining the link stability and the signal strength to aggregate the link, and optimizing the switching opportunity and path; allocating resources according to the signal strength and the service characteristics; and optimizing the energy consumption according to the relative motion and the business characteristics. Through accurate prediction and multi-dimensional adjustment and optimization, the communication efficiency and reliability of the low-orbit satellite communication terminal network are improved, energy consumption and delay are reduced, and good communication quality is guaranteed.

The invention discloses a multi-source fusion positioning method, positioning system and equipment for resisting non-line-of-sight interference. The method comprises the following steps: S1, acquiring RSS (Received Signal Strength), TDOA (Time Difference Of Arrival) and AOA (Attention Of Arrival) of N base stations; s2, selecting a base station with the strongest signal as an initial reference station according to the RSS mean value, and generating all base station combinations containing the reference station; s3, constructing a joint positioning equation for each base station combination, and carrying out initial position calculation on each combination by adopting a weighted least square method to obtain an intermediate position estimated value and a corresponding residual error; s4, identifying the NLOS base station by using sliding window-based multi-feature residual dynamic threshold judgment and effective combination-based NLOS weight penalty verification respectively; and S5, calculating the base station combination according to the residual error and the geometric precision factor to obtain high-precision position estimation. According to the method, unreliable NLOS base station signals can be intelligently identified in a complex electromagnetic environment, the weights of the unreliable NLOS base station signals are reduced, and finally more accurate target position estimation is fused.

Various systems and methods are presented regarding utilizing technology onboard a vehicle to mitigate the effects of communication signals being deleteriously affected / lost when operational surroundings cause occlusion / loss of receipt of positioning / location signals at the vehicle. The vehicle can be operating non-autonomously, partially autonomously, or autonomously. To supplement the lost / occluded signals position information of other systems proximate to the vehicle can be obtained / utilized. The other systems can include another vehicle, a mobile device, an internet, and suchlike. Also, onboard devices can be utilized to determine the location, such as an onboard camera system providing information regarding street signs, building facades, and suchlike.

The utility model discloses an intelligent communication antenna system capable of self-adapting to signal intensity, which is characterized by comprising an environment sensing module, a signal processing module and a fuzzy calculation adaptation module, and the environment sensing module, the signal processing module and the fuzzy calculation adaptation module are electrically connected. The environment sensing module comprises a signal state monitoring unit and a physical environment sensing unit; according to the utility model, through the arrangement of the environment sensing module and the fuzzy calculation adaptation module, if the attitude of the unmanned aerial vehicle changes in the driving process, the system can realize the dynamic prediction of the unmanned aerial vehicle according to fuzzy calculation in combination with the effects of multiple sensors such as a radar and a sensor, and can adjust the antenna parameters in time; according to the device, dynamic adaptation is realized through closed-loop feedback and sensing-processing-adjustment, so that the antenna signal strength can be adaptively switched when the attitude of the unmanned aerial vehicle changes quickly.

The invention discloses an unmanned aerial vehicle countering method and countering device for radio detection, and relates to the field of signal processing, and the method comprises the steps: scanning and capturing a transient radio frequency pulse signal through a radio frequency receiving array, carrying out the time-frequency domain conjoint analysis, constructing a signal intensity space distribution matrix, and extracting a parameter set; matching with a protocol feature library, identifying an unmanned aerial vehicle remote control link protocol type, and calculating an unmanned aerial vehicle position and a threat level in combination with a signal time difference of arrival and a frequency difference; generating adaptive interference signal parameters according to the protocol type and the threat level; the method comprises the following steps: generating a directional beam through a two-dimensional phased-array antenna, focusing the position of an unmanned aerial vehicle to transmit an interference signal, monitoring signal intensity change and protocol response delay in real time, calculating a communication suppression ratio, and iteratively optimizing an interference strategy until a suppression threshold is reached. The method has the advantages that efficient and accurate signal capture and interference are realized through multi-channel radio frequency detection, accurate positioning and adaptive interference technologies, and the countering efficiency and adaptability are remarkably improved.

A wireless power transmitter that transmits power to a wireless power receiver, the wireless power transmitter including a communication unit configured to communicate with the wireless power receiver; and a controller, wherein the communication unit receives a plurality of packets including a foreign object detection (FOD) status packet from the wireless power receiver, wherein the controller determines whether a foreign object is present in a charging area of the wireless power transmitter on the basis of the FOD status packet, wherein the communication unit transmits, to the wireless power receiver, a response signal indicating whether the foreign object is present in the charging area of the wireless power transmitter on the basis of a result of the determination, wherein the response signal is determined using a measured peak frequency of a power signal transmitted by the wireless power transmitter and a reference peak frequency included in the FOD status packet received from the wireless power receiver, and wherein the plurality of packets further include at least one of a signal strength packet, an end power transfer packet, a power control hold-off packet, a configuration packet, an identification packet for transmitting receiver identification information, an extended identification packet, a general request packet, a special request packet, a control error packet, a renegotiation packet, a 24-bit received power packet, an eight-bit received power packet, and a charging status packet.

The invention belongs to the technical field of road engineering roadbed nondestructive testing, discloses a roadbed humidity nondestructive testing method based on wireless radio frequency signal multi-parameter inversion, and aims to solve the problems that a traditional roadbed humidity testing method is destructive, low in efficiency and discontinuous in monitoring or detection parameters are easily interfered. The method specifically comprises the following steps of: firstly, embedding an RFID tag and acquiring an on-site received signal strength indication value; then establishing a relation model of the received signal strength indication value and the roadbed moisture content, and extracting characteristic parameters only influenced by the moisture content; then, constructing a neural network model, taking the extracted characteristic parameters as input, and utilizing field data to train the model to invert the roadbed moisture content; and finally, the spatial distribution of the moisture content of the roadbed is obtained by combining the distribution of the test points and the roadbed structure information, so that the efficient, non-contact and continuous monitoring of the humidity state of the roadbed is realized.

The invention relates to the technical field of wireless communication, and discloses a Bluetooth link control method and system for an intelligent bicycle helmet, and the method comprises the steps: collecting signal intensity data, and obtaining a signal intensity sequence; calculating an intensity difference value according to the signal intensity sequence to obtain an intensity fluctuation trend; analyzing the intensity fluctuation trend, and extracting an average intensity value in a preset time window to obtain a risk assessment result; obtaining interruption characteristic data, fitting the risk assessment result and the interruption characteristic data, and determining a connection stability score; if the connection stability score is lower than a preset stability threshold value, generating an adjustment instruction, and obtaining a communication configuration parameter; updating Bluetooth connection configuration according to the communication configuration parameters to obtain an optimized signal strength sequence; and obtaining a final adjustment scheme according to the optimized signal strength sequence. According to the method, the function of maintaining rapid and stable communication of Bluetooth connection in a complex and changeable riding environment can be realized.

The invention discloses an application method, system, equipment and medium of plant inspection navigation in a two-ticket intelligent management and control system based on AOA positioning, and belongs to the technical field of positioning navigation, and the application method comprises the following steps: setting a Bluetooth AOA transmitting base station and a Bluetooth AOA module positioning tag in an inspection area, carrying out signal interaction, and constructing an inspection space model; obtaining an interaction signal between the mobile Bluetooth transmitter and the Bluetooth AOA transmitting base station when an inspector carrying the mobile Bluetooth transmitter enters the inspection area, calculating the distance between the inspector and the Bluetooth AOA transmitting base station according to the signal intensity, and determining the real-time position of the inspector in the inspection space model; an inspection navigation route is generated according to the real-time position of the inspector, a preset inspection route and the work ticket information and the operation ticket information provided by the two-ticket intelligent management and control module; and when the inspector arrives at the inspection point and a preset card punching condition is satisfied, recording inspection card punching information and generating an inspection record. According to the invention, the inspection efficiency and safety are improved.

The invention discloses a remote sensing small target detection network and method based on frequency domain and space domain adaptive enhancement, and belongs to the technical field of artificial intelligence. The network is based on an FCOS lightweight detection framework, through cooperative extraction, adaptive enhancement and fusion of spatial domain and frequency domain features, the parameter quantity and the calculation complexity are greatly reduced, the small target detection precision and efficiency are significantly improved, and finally the balance of lightweight deployment and high-precision detection is realized. According to the invention, through the space-frequency feature adaptive enhancement network, space context modeling and frequency detail recovery can be completed in a single-stage detection framework at the same time, and an adaptive enhancement unit is introduced to dynamically adjust the enhancement strength according to the local signal-to-noise ratio, so that significant improvement and background suppression of a tiny target signal are realized.

A UE may measure a signal strength or signal quality of a serving cell. The UE may select whether to use an LP-WUR, a main radio, or both the LP-WUR and the main radio for signal monitoring based on the measured signal strength or signal quality of the serving cell. The signal monitoring may be associated with at least one of WUS monitoring, SSB monitoring, or RRM measurement. The signal strength or the signal quality of the serving cell may be measured using the main radio. The UE may receive an indication of at least one threshold from a network node. Whether to use the LP-WUR, the main radio, or both the LP-WUR and the main radio for the signal monitoring may be selected based further on the at least one threshold.

A system that improves beacon discovery by enabling a device to determine a dynamic threshold and connect to a gateway that satisfies the dynamic threshold. For example, the device may iteratively scan through available channels for a first duration of time, detecting beacon signals and storing corresponding signal strengths, then calculate a dynamic threshold value using the stored information. In some examples, the dynamic threshold value is calculated using a sum and counter implementation, with the counter incrementing with each beacon signal detected and a summing component adding the signal strength. Additionally or alternatively, the device may switch between performing first beacon discovery using a static threshold and performing second beacon discovery using a dynamic threshold. For example, the device may perform the first beacon discovery when movement of the device exceeds a threshold, while performing the second beacon discovery when movement of the device is below the threshold.

Radio access nodes may receive from a core network a configuration comprising a criterion to be used to determined to activate a network energy saving mode. The nodes share network energy saving information. A node activates a network energy saving mode upon the criterion being satisfied. A user equipment may establish a connection with a node that has not activated a network energy saving mode via a provisioning beam. Based on the connection being established via the provisioning beam, the node that has not activated a network energy saving mode may request that the node that activated the network energy saving mode transmit a synchronization signal block signal and that the user equipment monitor the synchronization signal block signal and determine whether to establish a connection with the node that is operating in an active network energy saving mode based on a signal strength of the synchronization signal block signal.

The invention relates to the technical field of archive management, and discloses an RFID archive management positioning device which comprises a frame body, a layer plate, a controller, an electronic door lock, a touch operation screen, an RF read-write module, an ultrahigh frequency RF antenna, a position indicator light belt, universal wheels, a camera, a glass door and a sensing assembly. Wherein the shelf board is located in the rack body and used for placing file bags or file boxes, the ultrahigh frequency RF antennas are distributed at the positions perpendicular to the shelf board and parallel to the glass door, the position indicator light belt is installed on the shelf board, and the touch operation screen is installed on the glass door. According to the invention, accurate positioning in a high-density scene is realized through cross-type ultrahigh-frequency antenna layout and an optimized positioning algorithm, the algorithm eliminates environmental interference through RSSI signal strength normalization processing, reduces response time delay error through a multipoint sampling average value method, and combines a trilateration principle with multiple groups of antenna data, so that the positioning accuracy is improved. And the positioning error can be controlled within the range of + / -1 file.

In one embodiment, a mobile system populates a rate lookup table using sampled data indicative of signal strength measurements, traffic quality of service tags, and transmission rates for wireless communications between the mobile system and one or more access points of a wireless network. The mobile system determines a quality of service tag for traffic to be sent between the mobile system and a particular access point of the wireless network and a signal strength between the mobile system and the particular access point. The mobile system selects, using the rate lookup table, a transmission rate for the traffic to be sent, based on the quality of service tag and the signal strength determined by the mobile system. The mobile system sends the traffic from the mobile system to the particular access point using the transmission rate.

According to various embodiments, an electronic device may include multiple antennas, at least one antenna tuning circuit connected to at least one antenna among the multiple antennas, and at least one communication processor, wherein the at least one communication processor receives, through a first antenna among the multiple antennas, a signal transmitted from a base station based on multiple-input and multiple-output (MIMO), receives, through a second antenna among the multiple antennas, a signal transmitted from the base station based on the MIMO, and when a strength of a first signal received through the first antenna or a strength of a second signal received through the second antenna is equal to or greater than a first threshold value, determines whether an imbalance condition of the first signal and the second signal is satisfied, and adjusts, when the imbalance condition is satisfied, a setting value of the at least one antenna tuning circuit so as to reduce a difference between the strength of the first signal and the strength of the second signal. Various other embodiments are possible.

A system for enhanced time division duplexing (TDD) synchronization in a wireless mesh network includes a master access point device and a plurality of repeater devices. The master access point device propagates a first extended wireless local area network (WLAN) beacon to plurality of repeater devices in a specific order based on network topology mapping information. The first extended WLAN beacon includes a first synchronization pattern. A first repeater device receives the first extended WLAN beacon and compares the first synchronization pattern with a prestored synchronization pattern. The first repeater device iteratively adjusts the timing of a local oscillator based on signal strength or signal-to-noise ratio measurements until the patterns match with the prestored synchronization pattern. The first repeater device locks TDD signal timing at the first repeater device based on the first synchronization pattern that matches with the prestored synchronization pattern.

A serving radio network node may indicate to a user equipment one or more upcoming radio resource management measurement occasion(s) / gap(s) during which the user equipment is to avoid suspending communication with the node and is to avoid measuring signal strength values corresponding to neighboring nodes. Instead, during indicated upcoming gap(s), the serving node may transmit buffered downlink traffic packets to the user equipment to avoid violating a latency criterion corresponding to the downlink traffic packets, or the user equipment may transmit buffered uplink traffic packets do the serving node to avoid violating a latency criterion corresponding to the uplink traffic packets. Transmitting of packets during the upcoming gap(s) may be based on determining that user equipment movement or a signal strength change rate does not correspond to a likely need that the user equipment be handed over to a neighboring node soon after the indicated measurement gap(s).

Provided are a method for a first device carrying out wireless communication, and a device supporting same. The method may comprise the steps of: acquiring a plurality of sidelink (SL) positioning reference signal (PRS) configurations; acquiring information related to a resource pool for SL PRS transmission; measuring, over a channel busy ratio (CBR) measurement window, a SL received signal strength indicator (RSSI) for the resource pool; acquiring a SL CBR on the basis of the measurement; and carrying out the SL PRS transmission on the basis of a SL PRS configuration among the plurality of SL PRS configurations.

An accessory device includes: an antenna; a processing unit; and a memory storing a first accessory device parameter; wherein the processing unit is configured to: obtain the first accessory device parameter, obtain a first hearing device parameter received via the antenna of the accessory device, determine a first criterion value based on the first hearing device parameter and the first accessory device parameter, and perform a comparison between a received signal strength indicator and the first criterion value, the received signal strength indicator indicating or being associated with a radiated power transmitted from a hearing device and received at the accessory device; and wherein the processing unit is configured to perform a pairing action if a result of the comparison satisfies a criterion.

The invention relates to a broadcast audio quality discrimination method and device, and belongs to the technical field of broadcast audio monitoring, and the discrimination method comprises the steps: receiving and preprocessing a broadcast audio signal stream, and outputting a framed signal sequence; extracting multi-dimensional features of the framed signal sequence in parallel, and generating a multi-dimensional feature set comprising a signal strength feature, an interference feature, a noise feature and a propagation disturbance feature; performing dynamic weighted fusion calculation based on the multi-dimensional feature set to generate a comprehensive audibility score; performing quality discrimination and root cause positioning according to the comprehensive audibility score and the multi-dimensional feature set, and outputting a quality grade and a fault type identifier; and when the quality grade is lower than a preset grade threshold value or the multi-dimensional feature set satisfies an alarm triggering condition, generating real-time alarm information and visual data. According to the invention, accurate evaluation and accurate traceability of the broadcast audio quality are realized.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a cross-link interference (CLI) received signal strength indicator (RSSI) resource in a subband full-duplex (SBPD) symbol of one or more subbands of an active downlink bandwidth part. The UE may perform a measurement of the CLI RSSI resource in the SBPD symbol of the one or more subbands of the active downlink bandwidth part. Numerous other aspects are described.

The invention discloses an anti-interference method suitable for a satellite navigation signal, and belongs to the field of satellite navigation signal anti-interference, and the method comprises the steps: collecting multi-channel satellite navigation signal data through a receiver array, processing an initial signal through a self-adaptive filtering algorithm to preliminarily reduce noise interference, and obtaining a preliminarily purified signal; extracting a spatial correlation matrix according to the preliminary purification signal, decomposing the matrix by adopting a principal component analysis algorithm to identify dominant spatial features, and determining an interference direction vector; obtaining the spectrum distribution of the direction suppression signal, further separating the spectrum overlapping part by adopting a principal component analysis algorithm, and judging the residual interference residue; through fusion of the direction suppression signal and the residual interference residue, an adaptive filtering algorithm is adopted to iteratively optimize the weight so as to enhance the navigation signal strength, and an optimized enhanced signal is obtained; and calculating a positioning parameter according to the optimized enhanced signal, judging whether the parameter stability meets a preset threshold value, and obtaining a final stable signal.

Ultra-Wideband (UWB) technology is a wireless technology supporting the transmission of large amounts of digital data over short distances using coded impulses over a wide frequency spectrum with very low power. Enhanced link performance and functionality of such UWB systems is presented exploiting multiple directive antennas for spatially filtering undesired signals and increasing signal strength whilst circuit complexity is reduced by eliminating baluns in prior art solutions. Further enhancements support payloads with flexible encoding schemes, improved channel utilization, reduced processing logic, improved robustness in correlation techniques, versatile synchronisation techniques, improved ranging, as well as providing for improved inter-symbol interference tolerance and detection.

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be configured to receive, from a second UE, a first sidelink control message indicating a first reserved resource to be used by the second UE for sidelink communications in a shared radio frequency spectrum band. The first UE may additionally receive, from a third UE, a second sidelink control message indicating a second reserved resource to be used by the third UE for sidelink communications in the shared radio frequency spectrum band. The first UE may transmit an indication of a conflict between the first and second reserved resources based on the first and second reserved resources overlapping in time and frequency, a signal strength for a signal received from the second UE, the third UE, or both, and a channel access parameter for communications with the second UE, the third UE, or both.

The invention discloses a portable wireless radio frequency switching method and system, a medium and a program product, and relates to the field of transmission, in the method, a switching device obtains a radio frequency signal strength value of a device to be switched; the switching device sends an awakening instruction and a handshake request to a to-be-switched device which is in a deep sleep state and keeps low-power-consumption monitoring; executing the handshake request to establish a secure communication connection; the switching device sends the encrypted radio frequency configuration data to a device to be switched, and the device to be switched writes the encrypted radio frequency configuration data into a nonvolatile memory; after the equipment to be switched completes writing of the encrypted radio frequency configuration data, a confirmation signal is sent to the switching equipment, the deep sleep state is automatically switched to, and low-power-consumption monitoring is kept. On the basis of keeping certain power to monitor the configuration request, low-power-consumption standby is realized, so that energy waste is reduced, and the use cost of equipment is reduced.

The invention discloses an intelligent frequency spectrum monitoring terminal, and relates to the technical field of electromagnetic frequency spectrums, the intelligent frequency spectrum monitoring terminal comprises a frequency spectrum acquisition access module, an intelligent identification processing module and an edge cooperation management and control module, the frequency spectrum acquisition access module is electrically connected with a plurality of frequency spectrum terminals and is used for completing terminal access, time reference establishment and link asymmetry correction; the intelligent identification processing module is electrically connected with the frequency spectrum acquisition access module and is used for carrying out multi-resolution time-frequency feature construction, target and interference type identification and online learning self-adaption on acquired data, and the edge collaborative management and control module is electrically connected with the intelligent identification processing module. The frequency spectrum acquisition access module is used for performing measurement fusion positioning of time difference of arrival, angle of arrival, frequency difference of arrival and received signal strength, and performing task arrangement, block verification retransmission and result consistency control, the frequency spectrum acquisition access module comprises a time service module, a loopback correction module, a common visual calibration module and a clock monitoring module, and the frequency spectrum acquisition access module has the characteristic of stable operation.

The invention belongs to the technical field of radio frequency amplification circuits, and particularly discloses a short-wave receiving amplification circuit capable of realizing cascade transmission and a short-wave communication system. According to the invention, direct current and interference in a previous-level signal are filtered through the filtering module, a pure radio frequency signal is obtained, and a foundation is laid for subsequent processing; the signal strength is improved through the amplification module, and single-stage transmission attenuation is overcome; the key point is that the balance gain module applies gain processing which is compensated for the loss characteristic of a transmission link to the amplified signal, so that the signal strength can be accurately matched with the actual loss of the line, and the problem that a fixed gain mode cannot adapt to the multi-stage series accumulated loss is solved. Compared with the prior art, the scheme realizes stable cascade transmission of short-wave signals through cooperative work of the modules, and remarkably improves the transmission distance and reliability of the system through dynamic compensation accumulated loss.