335 results about "Received signal strength indication" patented technology

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.

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.

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.

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 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 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.

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 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.

The invention discloses an interphone power saving method and device for dynamically adjusting a low noise amplifier working point, and the method comprises the following steps: S1, periodically collecting a digital intermediate frequency signal in a receiving stage, and calculating a first parameter and a second parameter, the first parameter being a current received signal strength indication value, and the second parameter being a current signal-to-noise ratio estimation value; s2, when the first parameter is higher than a first threshold value and the second parameter is higher than a second threshold value, it is judged that a low-power-consumption access condition is met; s3, when N continuous cycles all meet the low-power-consumption access condition, the baseband processor outputs a first control signal, and the bias working point of the low-noise amplifier is switched to a low-power-consumption mode; and S4, in a low-power-consumption mode, if the first parameter is lower than a third threshold value or the second parameter is lower than a fourth threshold value, outputting a second control signal, and switching the bias working point of the low-noise amplifier to a high-performance mode, thereby solving the problem of high static power consumption of the interphone receiving link on the premise of ensuring the communication reliability.

Embodiments of this application provide a wake-up method and apparatus and system configured to execute the method, including a main link and a wake-up link or a chip system in the terminal device, in which the main link is used for transmission of a paging message, and the wake-up link is used for transmission of a wake-up signal to determine whether to wake up the main link. The method may include measuring, by using the wake-up link, a first signal transmitted over the wake-up link to obtain a first measurement quantity of the first signal. The first measurement quantity may include at least one of first reference signal received power (RSRP), a first received signal strength indicator (RSSI), and first reference signal received quality (RSRQ). The method may further include determining, based on the first measurement quantity, whether to wake up the main link.

A system and method are provided for determining a location of a portable device relative to an object. The system and method may include operating in two modes: 1) a first mode in which an antenna output, such as a received signal strength indicator, satisfies a mode transition criterion that is dynamic, and 2) a second mode in which, with the mode transition criterion being satisfied, the location of the portable device is determined.

The invention relates to the technical field of wireless communication, in particular to an unmanned aerial vehicle emergency communication network coverage and energy efficiency optimization method, which comprises the steps that an unmanned aerial vehicle network acquires a received signal strength indication signal; the user clustering and power distribution module generates user clustering information and power distribution information; the triangulation positioning module obtains a received signal strength indication signal based on the user clustering information, and outputs a user position estimation value; the unmanned aerial vehicle horizontal deployment module receives a user position estimation value based on the user clustering information, and outputs an unmanned aerial vehicle horizontal position, an unmanned aerial vehicle coverage radius and a user coverage rate; on one hand, the height optimization module receives the unmanned aerial vehicle horizontal position and the unmanned aerial vehicle coverage radius based on the power distribution information and outputs the unmanned aerial vehicle height position; and based on the unmanned aerial vehicle horizontal position and the unmanned aerial vehicle height position, an optimal unmanned aerial vehicle three-position deployment scheme is obtained. According to the method, low calculation overhead, high convergence speed and algorithm adaptability can be realized, and a better communication coverage effect is achieved.

This application provides a measurement result reporting method and apparatus, a terminal, a network-side device, and a medium. The measurement result reporting method includes: triggering, by a terminal, reporting of a measurement result when a first condition is met. The first condition includes at least one of the following: an altitude condition, a transmission beam condition, a measurement result variation condition, a terminal altitude variation condition, a terminal location variation condition, a terminal speed condition, a condition on the number of target objects with measurement results greater than or equal to a preset first quality threshold, or a Received Signal Strength Indicator (RSSI) measurement result being greater than or equal to a first RSSI threshold.

The invention relates to the technical field of control, in particular to an intelligent valve positioner control method and system based on LoRa. The method comprises the following steps: determining LoRa communication parameters according to an operation state and a network environment of an intelligent valve positioner, constructing a data uplink, and when the communication parameters are determined, establishing a time sequence prediction model based on a historical signal-to-noise ratio and a packet loss probability sequence to obtain a predicted link quality index, the index is corrected by using an error value between a current control instruction and an actual position of the valve, a communication parameter combination is determined according to the corrected link index, and the access cost is calculated based on the received signal strength indication of the candidate father node, the residual electric quantity and the number of borne child nodes when the data uplink is constructed; and taking the node with the minimum access cost as a father node, and switching the father node by adopting a switching delay mechanism. According to the scheme, the key instruction transmission success rate can be increased, network load balancing is achieved, and the stability of network topology and the continuity of data transmission are ensured.

In implementations of the present disclosure, a solution for selecting an access point (AP) among a plurality of candidate APs is provided. A station (STA) MLD determines active links of a plurality of AP MLDs, and obtains physical information and media access control (MAC) information of the active links based on scanning the active links. The STA MLD further determines a plurality of received signal strength indicators (RSSIs) of the active links for a period of time, and determines a plurality of path costs for the active links based on the plurality of RSSIs, the physical information, and the MAC information. Then, the STA MLD selects an AP MLD from the plurality of AP MLDs based on the plurality of path costs. In this way, the AP MLD quality assessment approach and the evaluation model can be enhanced.

Disclosed are a power control method, device and terminal, which relate to the technical field of communications, the method being applied to a first terminal, the method comprising: determining a target signal to interference and noise ratio (SINR) of single transmission of a target service according to a quality of service (QoS) requirement of the target service; according to a channel state information (CSI) report sent by a second terminal, determining an actual SINR of single transmission of the target service; and according to the target SINR, the actual SINR and a reference signal receiving power RSRP measurement value of a physical direct link shared channel PSSCH fed back by the second terminal, determining first transmitting power of the PSSCH bearing the target service. Thus, real-time interference of the channel is fully considered when the transmitting power is adjusted, and the problem that an existing power control mode is not suitable for a scene with interference is solved.

The present invention discloses a method, device and storage medium for Bluetooth navigation in a virtual reality. The method includes: if a request to navigate to a destination in an indoor environment is received, then simultaneously collect multiple frames of image data and multiple frames of Bluetooth beacon signals in the indoor environment; determine whether the multiple frames of image data meet the conditions for indoor environment navigation; if so, extract target building features from the current frame of image data; extract multiple target Bluetooth beacon features from multiple received signal strength indications; fuse the target building features and the multiple target Bluetooth beacon features into target fingerprint features; detect the real-time position of the mobile device in the indoor environment according to the target fingerprint features; and display a virtual route from the real-time position to the destination in the form of virtual reality in the image data. When the indoor environment changes or there is interference, the influence on the features can be reduced, the positioning accuracy can be improved, and thus the accuracy of AR navigation can be improved.

The invention relates to the technical field of computer networks, in particular to a wireless terminal roaming method and device based on a PON network, computer equipment and a storage medium. In addition, the wireless terminal roaming method based on the PON network can also be applied to fiber to room (FTTR), enterprise level fiber to room (FTTR-B) and broadband fusion terminal products. The method comprises the following steps: performing received signal strength scanning in response to a received signal strength scanning request from a current access point to obtain a scanning received signal strength indication value of the access point, obtaining a first actual received signal strength indication value for data transmission with the current access point, and determining a scanning compensation value according to the difference between the two values. Further correcting the scanning received signal strength indication values of other access points; the first actual received signal strength indication value and the scanning received signal strength indication correction values of the other access points are used for the current access point to determine a target access point to which the wireless terminal needs to be switched.

Systems, methods, and devices may process reporting information, such as channel state information, received signal strength indication, signal-to-noise ratio, signal-to-interference and / or noise ratio, and / or similar information, with application or scenario-related granularity of wireless local area network sensing between an initiator and a responder.