554 results about "Received signal strength indication" patented technology

A method for dynamically adjusting transmit power of a first device that is in communication with a second device using a wireless communications protocol includes, in part, determining, by the second device, a received signal strength indication (RSSI) associated with a signal received from the first device; determining, by the second device, a first amount of power adjustment for the first device in accordance with the determined RSSI; transmitting the first amount of power adjustment from the second device to the first device; determining, by the first device, a second amount of power adjustment for the first device in accordance with the RSSI and the first amount of power adjustment; and changing a transmit power of the first device in accordance with the second amount of power adjustment.

The invention discloses a base station coverage anomaly detection method based on big data analysis, and belongs to the technical field of base station coverage detection in the technical field of communication. Aiming at the problems that the existing base station coverage anomaly detection is insufficient in accuracy and cannot adapt to dynamic environment change, the method comprises the following steps of: acquiring operation data such as received signal strength indication values of all base stations in a target area for continuous 1-30 days and 10-60 minutes, performing dimension reduction processing, and calculating a coverage characteristic value obtained by multi-dimensional index linear weighting; the method comprises the following steps: acquiring a coverage anomaly probability value, inputting the coverage anomaly probability value into an isolated forest model which is trained by historical data and can be dynamically updated, outputting the coverage anomaly probability value, and when the coverage anomaly probability value is in an interval greater than 0.7 and less than or equal to 0.9, marking a corresponding base station position on an electronic map as a coverage anomaly area. The method can accurately position the abnormal coverage area of the base station, is suitable for real-time monitoring and abnormity identification of the coverage state of the base station in communication network maintenance, and improves the network optimization efficiency and the service quality.

The invention discloses an RFID multi-label information fusion and unmanned vehicle path real-time correction method, system and device based on improved whale optimization, and a storage medium, and belongs to the technical field of the crossing field of the Internet of Things and an intelligent traffic system, and the method comprises the steps: collecting received signal strength indication information and label position information, constructing a label signal propagation model and a positioning probability distribution model; performing fusion processing of multi-label positioning information, adopting a dynamic weighting strategy to adjust signal contribution, obtaining an unmanned vehicle position estimation value, taking the unmanned vehicle position estimation value as state input of path optimization, constructing a path cost function, introducing a whale optimization search mechanism based on dynamic update parameters, performing iterative optimization on a path candidate solution, and obtaining a path optimization result; outputting a path correction result; and a real-time path instruction is issued to the vehicle control module, and the unmanned vehicle is guided to complete path correction and navigation control in a dynamic environment. According to the method, the problems of poor path adaptability, low fusion precision and local optimum in the existing method are solved.

This disclosure describes a network management system configured to determine, for each AP of the plurality of APs and based on received signal strength indicators (RSSIs) of each AP of the plurality of APs, one or more strong neighbors of each AP. compute an AP redundancy score for each AP of the plurality of APs indicative of a redundancy of each AP; compute, based on the AP redundancy scores, at least one of: a switch redundancy score for each network switch associated with one or more of the plurality of APs, wherein the switch redundancy score is indicative of a redundancy of each network switch, or a site redundancy score, wherein the site redundancy score is indicative of an overall redundancy of the network site; and invoke, based on the AP redundancy scores, the switch redundancy score, or the site redundancy score, one or more actions.

The invention discloses a positioning method and device, equipment, a medium and a product, and relates to the technical field of artificial intelligence, and the method comprises the steps: obtaining a received signal strength indication value of a to-be-positioned node; processing the received signal strength indication value based on a preset weighted hybrid filtering model to obtain a corrected received signal strength indication value; distance information is calculated according to the corrected received signal strength indication value, a positioning result corresponding to the to-be-positioned node is determined according to the distance information, and the received signal strength indication value is processed through a weighted hybrid filtering model, so that random noise and errors in received signal strength indication value data can be reduced, and the positioning accuracy of the to-be-positioned node is improved. The distance information is calculated according to the corrected received signal strength indication value, and the positioning result corresponding to the node to be positioned is determined according to the distance information, so that the accuracy of the distance information is improved, and the reliability and the real-time performance of the positioning result are improved.

A method for compensating a movement of an antenna structure having a directive antenna mounted thereto is disclosed. The method comprises obtaining sensor data from a motion sensor, where the sensor data is indicative of the movement of the antenna structure relative to a reference orientation. Moreover, the motion sensor is associated with a set of calibration parameters such that when applied to the obtained sensor data, calibrated sensor data is formed. Further, the method comprises generating a compensation signal at an output for controlling a beam direction of the directive antenna based on the formed calibrated sensor data such that the beam direction is an intended direction of the directive antenna and such that the (unwanted) movement of the antenna structure is compensated. The method further comprises re-calibrating the motion sensor in order to generate a set of calibration coefficients upon either one of an expiry of a predefined time period, a counter reaching a counter threshold, or upon a measured antenna parameter or signal parameter diverging from a parameter range. Once, one of these conditions are fulfilled, the re-calibration is performed by obtaining a received signal strength indication (RSSI) while the beam direction is controlled based on the generated compensation signal, generating the set of calibration coefficients based on the obtained RSSI, and updating the set of calibration parameters for the motion sensor with the determined set of calibration coefficients.

In a wireless communication system, cross-link interference (CLI) measurements are used for received signal strength indicator (RSSI) based positioning. A first user equipment (UE) receives from a base station, a first message comprising a cross-link interference (CLI) configuration; performs one or more CLI measurements associated with an uplink transmission of a second UE based on the CLI configuration; receives a second message comprising an uplink transmission power measurement of the second UE; determines a pathloss associated with the second UE based on the one or more CLI measurements and the uplink transmission power measurement; and determines a range between a location of the first UE and a location of the second UE based on the pathloss.

A Bluetooth® ranging method includes: A response device establishes a Bluetooth® communication connection to a request device; the response device measures signal strength of a ranging request after receiving the ranging request, to obtain a first received signal strength indication RSSI; the response device obtains a first distance based on the first RSSI and a Bluetooth® ranging model, where the Bluetooth® ranging model is obtained through fitting based on a correspondence between a preset distance from the request device and a modified RSSI at the preset distance, and the modified RSSI is obtained by processing a plurality of RSSIs measured at a plurality of spatial positions when the request device broadcasts a Bluetooth® signal, and weights corresponding to the plurality of spatial positions; and the response device sends the first distance to the request device. A distance between devices can be accurately measured using the disclosed techniques.

This disclosure provides methods, devices and systems for wireless positioning. An example method includes determining a first received signal strength indicator (RSSI) signature, the first RSSI signature including a respective RSSI associated with each access point (AP) of a first plurality of APs, where the first plurality of APs form at least a portion of a mesh network of APs, comparing the first RSSI signature with each reference RSSI signature of a first plurality of reference RSSI signatures, each reference RSSI signature of the first plurality of reference RSSI signatures including a respective RSSI associated with each AP of the first plurality of APs, and identifying a first position of the wireless STA based on the comparing of the first RSSI signature.

Disclosed in an embodiment of the present application are a communication method and a communication device, the method comprising: a terminal device determining, based on a first parameter, a maximum number M of repeated reception times of a synchronization signal block (SSB), M being an integer greater than 1, the first parameter being one or more of a reference signal received power (RSRP), a reference signal received quality (RSRQ) or a received signal strength indicator (RSSI); and the terminal equipment receives N SSBs from the network equipment based on the maximum SSB repeated receiving times M, the N SSBs are located in the same SSB period, and N is an integer greater than 0 and less than or equal to M. Based on the method described by the invention, the time delay of random access of the terminal equipment can be reduced.

The invention discloses a beam quality data processing method and apparatus, and an electronic device. The method comprises the following steps: when a satellite terminal accesses a satellite communication network, the satellite alignment state of the satellite terminal is acquired, and the satellite alignment state is used for indicating the actual pointing precision of a terminal antenna relative to a satellite; and when the satellite alignment state indicates that the difference between the satellite alignment angle of the satellite terminal and a predetermined satellite alignment angle is smaller than a preset threshold value, performing beam quality measurement on the satellite terminal to obtain first wave velocity quality data, the first beam quality data comprises a received signal strength indication and a signal-to-noise ratio based on a preset power level; and sending the first beam quality data to a core network device in a satellite communication network. According to the method and the device, the technical problems of long response time, low efficiency and large resource investment caused by manual measurement after the service quality becomes poor in the related technology are solved.

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 discloses a network management system, a network management method and a computer readable storage medium. The network management system is configured to: determine, for each of the plurality of APs and based on a received signal strength indicator (RSSI) of each of the plurality of APs, one or more strong neighbors for each of the plurality of APs; calculating an AP redundancy score for each of the plurality of APs, the AP redundancy score indicating a redundancy of each AP; calculating, based on the AP redundancy scores, at least one of: a switch redundancy score for each network switch associated with one or more of the plurality of APs, where the switch redundancy score indicates a redundancy for each network switch, and a site redundancy score, where the site redundancy score indicates an overall redundancy for the network site; and invoking one or more actions based on the AP redundancy score, the switch redundancy score, or the site redundancy score.

The invention discloses an adaptive modulation coding method and system based on fuzzy logic, and belongs to the field of wireless communication, and the system comprises a dynamic window module which dynamically adjusts the window size of a fuzzy set according to the received signal strength indication and the change trend of the packet reception rate; the input fuzzification module takes the actual received signal strength indication and the packet reception rate as input and converts the actual received signal strength indication and the packet reception rate into fuzzy variables through fuzzification processing; the fuzzy reasoning module is used for defining different membership functions, mapping continuous received signal strength indications and packet reception rate measurement values into a fuzzy set, considering membership value combinations of all RSSI and PRR fuzzy categories, calculating a weighted total score and outputting a fuzzy decision value; and the defuzzification module is used for converting into an actual modulation coding selection scheme through a defuzzification process. By adopting the method and the system, the adaptability and the response speed of the system to complex and changeable channel conditions are improved, and the accuracy and the reliability of adaptive modulation coding selection are improved.

The invention discloses a positioning method based on a weight factor and a WKNN, and relates to the technical field of Bluetooth positioning. The method comprises the following steps: dividing a preset site into a grid structure, and setting a positioning initial reference point at a node of each grid; setting a plurality of Bluetooth positioning beacons in a preset site, wherein the Bluetooth positioning beacons are used for sending Bluetooth signals to a plurality of positioning initial reference points and a to-be-positioned point; obtaining a first coordinate corresponding to each positioning initial reference point, and obtaining a plurality of first received signal strength indication values received by each positioning initial reference point; acquiring a plurality of second received signal strength indication values received by the to-be-positioned point; and obtaining an actual coordinate corresponding to the to-be-positioned point based on the plurality of first coordinates, the plurality of first received signal strength indication values and the plurality of second received signal strength indication values. By implementing the technical scheme of the invention, the accuracy of Bluetooth positioning measurement of the coordinates of the to-be-positioned point can be improved.

A reporting method is performed by a terminal device, and includes: reporting a radio link failure report (RLF-report) to a network-side device in response to triggering the RLF-report, wherein the RLF-report carries at least one of received signal strength indicator (RSSI) information or channel occupancy (CO) information.

The invention discloses a fractional derivative positioning optimization method based on adaptive data driving, which belongs to the technical field of radio positioning, and comprises the following steps: S1, receiving a signal strength indication value at an actual position by using a sensor in a target area, and generating an RSSI data set; s2, according to the RSSI data set, generating and training a fractional derivative kernel adaptive filter; and S3, inputting the actual position and the RSSI data set into the trained fractional derivative kernel adaptive filter to obtain a target position. Compared with a traditional classical kernel adaptive filtering method, the method has the advantages that a fractional order derivative is adopted to construct a weight updating strategy, and higher and more stable filtering precision is achieved; according to the method, the fractional calculus is combined with the q Laplacian kernel technology to be introduced into the kernel adaptive filter to construct the positioning system for the first time, and experiments show that the algorithm can obtain better positioning precision compared with the current most advanced positioning algorithm.

The present invention provides a system and method which allow for the rapid and reliable identification of towed trailers parked together in loading areas. According to a first preferred embodiment, an exemplary method of the present includes: monitoring hook-up criteria indicating that the first truck is maneuvering to hook-up with the first trailer; scanning for one or more transmitting devices when hook-up event criteria are met; determining which transmitting devices are sufficiently close to require an angle calculation based on RSSI levels; performing an Angle of Departure / Angle of Arrival calculation for each of the selected signals; determining which of the closest identified trailers have an Angle of Departure / Angle of Arrival which falls within a pre-set threshold; identifying a hook-up trailer based on detecting the Angle of Arrival / Angle of Departure and the compared RSSI levels; pairing the hook-up trailer ID device with a tractor ID device of the first truck; and transmitting paired ID information linking the hook-up trailer ID and the tractor ID device.

The invention discloses a method and device for conducting Bluetooth navigation in virtual reality and a storage medium, and the method comprises the steps that if a request for navigating to a destination in an indoor environment is received, multi-frame image data and multi-frame Bluetooth beacon signals are collected in the indoor environment at the same time; judging whether the multi-frame image data meets an indoor environment navigation condition or not; if yes, extracting target building features from the current frame image data; extracting a plurality of target Bluetooth beacon features from the multi-frame received signal strength indication; fusing the target building feature and multiple target Bluetooth beacon features into a target fingerprint feature; detecting the real-time position of the mobile device in the indoor environment according to the target fingerprint features; a virtual route from the real-time location to the destination is displayed in the image data in a virtual reality manner. When the indoor environment changes and interference exists, the influence on the characteristics can be reduced, and the positioning accuracy can be improved, so that the accuracy of AR navigation is improved.

The invention provides a ranging error compensation method for indoor positioning precision time measurement, and aims to improve the precision and robustness of an indoor positioning system. The error type identification method under the LOS / NLOS mixed environment is established by combining the difference between LOS and NLOS signals, RSSI (received signal strength indication) information and a power attenuation model so as to accurately distinguish LOS and NLOS error signals, and corresponding error compensation models are respectively established. Meanwhile, the particle filter algorithm is introduced, so that the adaptability and robustness of the positioning algorithm to complex signal conditions are improved. The error compensation methods are not only suitable for a precision time measurement (FTM) technology, but also can be expanded to other indoor positioning technologies based on time measurement. Through experimental verification, the indoor positioning precision can be effectively improved, and the method has important application value in scenes with high positioning precision requirements.

According to one aspect of the present disclosure, a wireless power receiver for receiving wireless power on the basis of out-band communication is provided. The receiver comprises: a power pick-up circuit configured to receive wireless power from a wireless power transmitter at an operating frequency; and a communication / control circuit configured to perform at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency. Here, on the basis of at least one of the received voltage in the power pick-up circuit and a received signal strength indicator (RSSI) of a first signal related to the out-band communication, the communication / control circuit may perform a power interruption procedure for interrupting transmission of the wireless power and a disconnection procedure for releasing the connection of the out-band communication.

The invention discloses a Bluetooth-based positioning method and device, and a storage medium. The method comprises the following steps: receiving an original Bluetooth beacon signal, a wireless fidelity signal and an acceleration signal; generating a first signal sequence representing the change trend of the first received signal strength indication value according to the original Bluetooth beacon signal; generating a second signal sequence representing a change trend of a second received signal strength indication value according to the wireless fidelity signal; generating a third signal sequence representing the jitter state according to the acceleration signal; selecting a filtering set according to the first signal sequence, the second signal sequence and the third signal sequence; calling a filtering algorithm to filter the original Bluetooth beacon signal to obtain a candidate Bluetooth beacon signal; screening out a plurality of candidate Bluetooth beacon signals with the highest quality value according to the first received signal strength indication value, and taking the candidate Bluetooth beacon signals as target Bluetooth beacon signals; and positioning according to the target Bluetooth beacon signal. According to the embodiment, the filtering effect is improved, and the performance of the Bluetooth beacon signal is improved.

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.

Techniques are described by which a network management system (NMS) is configured to generate and monitor an RSSI-based proximity zone for a wireless network using a user interface (UI). The NMS may generate a UI comprising UI elements representing access point (AP) devices configured to provide a wireless network at a site; receive, at the user interface, an indication of a user input selecting one or more UI elements representing selected AP devices; establish a proximity zone for each of the selected AP devices based on an RSSI threshold value; receive network data comprising proximity information of a client device relative to the selected AP devices; generate, based on proximity assessments using the proximity information and the RSSI threshold value of the proximity zone, one or more proximity events indicating the client device relation to the proximity zone; and invoke, based on the proximity events, one or more actions.

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 present disclosure relates to a method of managing a cross link interference (CLI) in a network enabled with sub-band full duplexing (SBFD). The method implemented by a user equipment, being a victim equipment, comprising receiving at least one first configuration and at least one second configuration, wherein the at least one first configuration comprises, indication of frequency location of at least one DL resource for SBFD operation and at least one UL resource for SBFD operation, and wherein the at least one second configuration comprises indication to report at least one of received signal strength indicator (RSSI) and reference signal received power (RSRP) as report quantity. The method further comprises measuring the report quantity and transmitting a report comprising the report quantity. The present disclosure further provides a method being implemented by a base station and aggressor user equipment in SBFD slots.

The present application relates to the technical field of communications, and provides a coexistence interference avoidance method and apparatus, a communication device and a storage medium, the method comprising: when a target signal and an interference signal work together, the communication device can detect whether the target signal is interfered by detecting a first received signal strength indication corresponding to the target signal. And when it is determined that the first received signal strength does not meet the preset requirement, it can be determined that the target signal is interfered. The communication device can adjust the time slot parameter of the target signal, so that the target signal is far away from the frequency band of the interference signal, and the interference degree of the interference signal is reduced. When it is detected that the first received signal strength indication meets the preset requirement, it can be determined that the interference degree is reduced, and at the moment, the communication device can determine the adjusted time slot parameter as the target time slot parameter and control the target signal to communicate according to the target time slot parameter. According to the scheme, when multiple communication systems are used together, coexistence interference is avoided, and normal use of the multiple communication systems is ensured.

The invention relates to an audio transmission control method and system, and relates to the field of audio transmission control, and the method comprises the steps: continuously monitoring the information of a received audio data packet, the information comprising a serial number or a received signal strength indication value; analyzing the received audio data packet, extracting voice feature information in an audio frame and caching the voice feature information; according to the serial number or the received signal strength indication value, determining whether there is an audio data packet loss condition, and if yes, suppressing a retransmission request for the lost audio data packet; if not, continuously monitoring the information of the received audio data packet; under the condition that the audio data packets are lost, reading the voice feature information cached before the audio data packets are lost, and generating filling audios with matched duration in combination with the quantity of the lost audio data packets; and putting the filling audio into the position where the audio data packet is lost to form a continuous audio stream and outputting the continuous audio stream. According to the invention, the problem that the audio quality is reduced due to an improper retransmission mechanism in the prior art is solved.

According to an embodiment of the disclosure, an operating method of an electronic device in a wireless communication system includes: establishing a wireless communication connection for transmitting and receiving data to and from an access point in a first communication method; receiving a state detection message from the access point; identifying an internal state of the electronic device in response to the state detection message being received; and determining whether to switch a communication interface, based on the identified internal state, and the internal state includes a received signal strength indicator (RSSI) value of the wireless communication connection, information regarding whether a network switching mode of the electronic device is enabled, information regarding whether an application related to the data is enabled, and / or information regarding use of the data.

Apparatuses, methods, and systems for client steering in mesh networks are disclosed. A first access point (AP) of a network sends a quality of service (QoS) data packet to a client device. A received signal strength indication (RSSI) of the client device is captured using the QoS data packet. A distance between the AP and client device is determined using a Wi-Fi round trip time. A time and day of week is determined. Using machine learning, a second AP is identified for steering the client device to, based on the RSSI, the distance, and the time and day of week. A machine learning model is trained to steer each client device to a respective AP for increasing a throughput of the network based on features extracted from client behavior of the client devices. The second AP is connected to the client device.