144 results about "Direct path" patented technology

The invention discloses a dynamic channel transmission characteristic optimization method for a boundary layer meteorological observation aircraft, and the method comprises the steps: supposing that a direct path between a transmitting end and a receiving end is shielded by an obstacle in the air-to-ground communication in a boundary layer in which the meteorological observation aircraft participates; and one part of the signal sent by the transmitting end is reflected to the receiving end through the moving scatterer, and the other part of the signal directly reaches the receiving end without interference. According to the invention, a communication environment between a mobile transmitting terminal and a mobile receiving terminal is described by adopting a geometric stochastic modeling mode, a DRL enabling boundary layer meteorological observation aircraft channel transmission characteristic dynamic optimization method based on geometric characteristics is established, and a nonlinear relationship between motion characteristics of a meteorological observation aircraft and a channel model is revealed. The method has important application value for evaluating the performance of the air-to-ground wireless communication system in the DRL auxiliary boundary layer.

In the present disclosure, a method of transmitting a signal by a user equipment (UE) may comprise performing a procedure for configuring an indirect path to a network; and transmitting, to the network, at least one buffer status report (BSR) including a buffer status related to the indirect path, wherein, based on the UE being configured to report both a BSR related to a direct path and a sidelink (SL) BSR related to the indirect path to the network, a specific buffer status related to the indirect path may be excluded from the SL BSR.

Embodiments of this application provide a multi-path configuration method, an apparatus, and a system, to provide a procedure in which remote user equipment (UE) establishes a plurality of paths by using a single path. The method includes: A first terminal device receives a first message from a network device through a first path, where the first message indicates the first terminal device to establish a second path between the first terminal device and the network device, and the second path is different from the first path; the first terminal device establishes the second path in a second cell by using the first message; and the first terminal device maintains a media access control (MAC) entity, where the MAC entity is used by the first terminal device to communicate with the network device through a direct path in the first path or the second path.

The present application relates to methods and apparatuses for simultaneous transmission on multiple paths. One embodiment of the present disclosure provides a relay user equipment (UE), which includes: a transceiver: and a processor coupled with the transceiver and configured to: receive configuration information associated with a data radio bearer (DRB) of a remote UE; and receive, from at least one of a base station (BS) or from the remote UE, a first indication indicating activation or deactivation of a simultaneous transmission on multiple paths of the DRB of the remote UE, wherein the multiple paths include at least a direct path and an indirect path.

The invention provides a passive positioning method based on a wireless fidelity (Wi-Fi) beam forming feedback information (BFI). The passive positioning method comprises the following steps of: firstly, carrying out passive positioning on the basis of the Wi-Fi beam forming feedback information (BFI); the method comprises the following steps: firstly, pre-determining the position of a transceiver, and respectively extracting BFIs of a direct path and a target reflection path of the transceiver; compared with extraction of channel state information (CSI), the BFI is inherent information in a Wi-Fi communication protocol, special acquisition hardware does not need to be additionally deployed, the BFI can be directly extracted from the communication process, the hardware cost and the deployment threshold of a positioning system are greatly reduced, and large-scale popularization and application are easier to realize. And secondly, by constructing a BFI covariance matrix, high-dimensional matrix operation in a traditional MUSIC algorithm is converted into low-dimensional matrix processing, and the calculation complexity is remarkably reduced. And finally, constructing a spectral function to respectively obtain an angle of departure (AOD) of a direct path of the transceiver and a target reflection path and a flight time difference of the two paths, substituting the parameters into the elliptic constraint model for calculation, and finally solving to obtain an estimated position of the target. According to the method designed by the invention, the real-time performance and the deployment flexibility of the system are greatly improved under the condition that the calculation complexity is remarkably reduced and the support of specific hardware is not needed.

The invention relates to a model-based method for determining false detections during radar detections in radar data, in conjunction with cross paths which arise on account of different transmit and receive angles of paths for a radar target, in which method a radar cube having range-Doppler cells is generated by Fourier transform on the basis of the radar data, wherein first a range and then a Doppler Fourier transform is carried out, such that channel data are thereby available for each range-Doppler cell, wherein false detections are determined via the channel data of a plurality of neighbouring range-Doppler cells, in that multi-dimensional models for multipath propagation spanning said range-Doppler cells are used to determine the detection parameters range, Doppler and angle of the detections, wherein the following models are used as models for multipath propagation: - a multipath model, which comprises a direct path, an indirect path and an associated cross path for a radar target; and / or - a cross path model, which comprises only one cross path for a radar target (and no direct or indirect path); and / or - a plurality of individual target models, which comprise a plurality of direct independent paths or a plurality of independent radar targets.

The invention provides a touring route planning method and device, and belongs to the technical field of route planning, and the method comprises the steps: 1, constructing a GIS map of an amusement place, and marking entrances and exits, intersections and amusement points as point locations with unique identifiers; 2, connecting the point locations to generate directed paths, wherein the directed paths comprise a one-way path and a two-way path; 3, calculating a shortest path between any two point locations by adopting a Floyd algorithm, and generating a shortest path set RS; and 4, receiving a starting point, an ending point and a traversal point position set input by the user, and generating a planning route through an optimal path point bridging and correction algorithm. According to the touring route planning method and device provided by the invention, the touring route which covers all specified point locations, is shortest in path and minimum in repetition and adapts to dynamic requirements can be quickly generated.

To provide a terminal device, a method, and an integrated circuit, capable of efficiently performing communication control.SOLUTION: A terminal device that communicates with a base station device, is configured to: when detecting a radio link failure of a direct path, determine whether or not an indirect path change procedure is in progress; and based on determining that the indirect path change procedure is not in progress, report the radio link failure of the direct path to the base station device. Therein: the direct path is a path that connects to the base station device via a Uu interface; and the indirect path is a path that connects to the base station device via a relay terminal device.SELECTED DRAWING: Figure 10

The invention provides a beam forming method and device, equipment and a medium. The beam forming method comprises the following steps: receiving a first transmitting signal sent by a base station, a first echo signal of a to-be-positioned target to the first transmitting signal and a first direct path signal received by the base station; and determining a first beam forming matrix sent by the base station to the user based on the first transmitting signal, the first echo signal and the first direct path signal. According to the method, the problem of phase asynchronization between the transmitting signals of the antennas is solved, and the robustness of the system is further enhanced and the positioning precision is improved through the beam forming matrix, the resource allocation scheme obtaining and the fine design of the beam.

Provided is a systolic array including a plurality of sub processing element (PE) arrays, wherein each of the plurality of sub PE arrays is configured to receive an input signal and to generate an output signal based on the received input signal, and a plurality of output direct path (ODP) circuits is configured to operate in a first mode and in a second mode, wherein an ODP circuit of the plurality of ODP circuits receives the output signal of a previous sub PE array of the plurality of sub PE arrays, wherein the ODP circuit provides the output signal to a next sub PE array of the plurality of sub PE arrays in the first mode, and wherein the ODP circuit outputs the output signal in the second mode.

The embodiment of the invention provides a multi-path communication method and device. And the remote terminal equipment receives an RRC reconfiguration message which is sent by the network equipment and is used for increasing or changing the indirect path through the direct path, and sends an RRC reconfiguration completion message to the network equipment through the direct path, therefore, the network equipment can know whether the remote terminal equipment successfully executes the configuration in the RRC reconfiguration message or whether the indirect path is successfully increased or changed, so that the remote terminal equipment and the network equipment have consistent understanding on the configuration of the remote terminal equipment, and subsequent configuration conflicts or configuration errors are avoided.

Techniques are described herein for providing bi-directional path selection based on indicated path preferences in policy data. Such techniques may be performed by a network node and may comprise generating a set of paths to a destination, a first path of the set of paths being labeled as a direct path and a second path of the set of paths being labeled as an indirect path. Such techniques may subsequently comprise receiving a communication from a source and directed to the destination, determining, based on a first indicated path preference for the destination and a second indicated path preference for the source, a path category, selecting a forwarding path as one of the first path or the second path based on the determined path category, and routing the communication to a next hop in the selected forwarding path.

The invention discloses a satellite signal processing method and device, equipment and a storage medium, and the method comprises the steps: determining the interference intensity of a satellite signal inputted by an antenna through a control chip, and determining the interference state of the satellite signal according to the interference intensity; according to the interference state, path switching is carried out through a radio frequency switch to determine a target path, and the target path comprises a high-precision straight-through path or an anti-interference path; and processing the satellite signal through the target path and sending the satellite signal to a positioning receiver. The interference intensity of satellite signals is monitored, different target paths are switched through the radio frequency switch according to different interference states, and the satellite signals are processed through the determined target paths, so that an anti-interference path is adopted when positioning is influenced by strong interference, and the positioning accuracy is improved. And a high-precision straight-through path is adopted without being influenced by strong interference, so that dynamic balance of precision and anti-interference is realized, and a single antenna takes into account two use scenes of high-precision positioning and anti-interference.

The invention relates to a modular design method for a full-garden multi-storey house. The method comprises the steps that firstly, ground spaces around a multi-storey residential building body are obtained, then the ground spaces on the front side, the rear side and the side faces of the building body are reasonably divided, and exclusive private garden areas are created for residents on all floors. And then, the optimal installation position of the elevator in the private garden area is determined by means of a deep learning position prediction model, the district type shared elevator shared by the two households is constructed, and then an optimal direct path set from the private garden area to the corresponding floor is generated. And then multi-door structure data of the partitioned shared elevator is obtained, and independent channels for users on all floors to enter the elevator are determined. And finally, according to the use condition of the independent channel, mastering the running state of the elevator used by the users on any floor, and realizing a non-interfering running mode of the users on different floors. The use efficiency of the elevator is effectively improved, mutual interference between floors is avoided, and a higher-quality living environment is created for residents.

In the present disclosure, a method of receiving a signal by a first user equipment (UE) in a wireless communication system, may comprise performing a first configuration procedure for a direct path to a base station (BS); performing a second configuration procedure for an indirect path to the BS, based on a second UE connected to the BS; and receiving, from the BS, a paging signal through at least one of the direct path and the indirect path, wherein, based on that a common search space (CSS) set for paging is configured in an active bandwidth part (BWP) of the direct path, the paging signal may be received through the direct path, and wherein, based on that the CSS set for paging is not configured in the active BWP of the direct path, the first UE may request the second UE to relay the paging signal from the BS through the indirect path.

A communication method and apparatus are disclosed, applicable to the field of communication technology. In this method, a first apparatus determines the time delay from when the first network device sends the first reference signal to when the terminal device receives the first reference signal, and the time delay from when the terminal device sends the second reference signal to when the first network device receives the second reference signal, based on a phase measurement obtained from a first reference signal received by a terminal device from a first network device, a phase error obtained from the direct path signals corresponding to the first signal sent and received by the terminal device, a phase measurement obtained from a second reference signal received by the first network device from the terminal device, and the phase error obtained from the direct path signals corresponding to the second signal sent and received by the first network device. Using the time delays determined by this method to locate the terminal device improves positioning performance.

The invention provides an RIS-based TOA anchor-point-free relative positioning method, a medium, equipment and a product, and relates to the technical field of wireless positioning, and the method comprises the steps: deploying a wireless network comprising a to-be-positioned node of an RIS; bidirectional TOA distance measurement is carried out between two nodes, and the distance between a direct path and an RIS reflection path represented by time is obtained based on signal receiving and transmitting time; measuring in a two-dimensional coordinate system of the wireless network to obtain a distance between a direct path and a reflection path represented by coordinates; constructing an initialized node coordinate equation based on the distance between the direct path and the reflection path represented by time and coordinates, and constructing a maximum likelihood function based on the distance between the direct path and the reflection path represented by the coordinates; a maximum likelihood function is utilized to convert a solving problem of node coordinates into a least square problem, a gradient descent method is utilized to obtain positioning of the node coordinates, and iteration is stopped when a convergence criterion is met or a maximum iteration step is reached. The method is high in positioning precision.

Example embodiments of the present disclosure relate to a first UE, a second UE, a method, an apparatus, and a computer readable medium for indirect path failure procedures caused by a Uu link problem of a relay UE (e.g., LTM of the relay UE) in a multipath scenario. In this solution, in response to a first message (notification or release message) received from a second UE (relay UE), the first UE (remote UE) may send a second message to the BS via a direct path, and the second message may include a measurement result. Thus, the BS may know the indirect path failure information and may further use the measurement results to perform further operations. Accordingly, communication for a remote UE may be ensured, and communication efficiency may be improved.

The present invention proposes a method for estimating angles when the antenna spacing exceeds half a wavelength, which is used for angle measurement when the antenna spacing exceeds half a wavelength. The method comprises the following steps: 1) constructing an OFDM-based angle measurement system; 2) initializing a transmitter to send an OFDM signal to a receiver; 3) constructing a signal reception model at the receiving end; 4) introducing a reference angle to iteratively project the signal; 5) using the proposed power-based matching pursuit algorithm to perform parameter estimation; and 6) determining the angle of the direct path. The present invention effectively solves the problem that the angle cannot be accurately measured when the antenna spacing exceeds half a wavelength, and improves the angle measurement accuracy, and is suitable for scenarios such as personnel positioning in indoor environments.

This invention discloses a flexible connection anti-tampering component, a dedicated housing, and an assembly method, belonging to the field of anti-theft and anti-tampering fastener technology. Addressing the industry shortcomings of existing flexible connector locking structures, which only employ exposed, simple combinations without dedicated protective structures, resulting in easy disassembly with tools and adhesive removers, concealable restoration after disassembly, and easy theft and substitution of goods leading to economic losses, this invention adopts the following technical solution: The component includes a first main body, a second main body, a limiting area, a locking and fixing part, an ejector part, and a flexible connector. The housing has a sized through-hole, and the limiting area fully covers the locking area formed by the flexible connector and the locking and fixing part. Utilizing the deformable characteristics of the flexible connector, the ejector part inside the housing pushes the flexible connector to form an irregular bend, completely blocking the direct path of tools from the housing opening to the locking area. A half-type rigid protective housing and standardized assembly process are provided, and a disposable anti-counterfeiting and anti-restore component is provided at the seam of the housing. This invention can be adapted into various forms such as through-and-through, single-through, and wrap-around, to meet the anti-theft binding needs of multiple scenarios. It has a simple structure and is easy to mass-produce.

The invention discloses an indoor positioning method based on two-dimensional sparse array signals. The method comprises the following steps: firstly, deploying a pair of equipment carrying a commercial Wi-Fi network card (Intel 5300) indoors, and configuring and acquiring channel state information (CSI) under multi-time snapshots in a form of'single transmitting antenna + three receiving antennas'; secondly, inhibiting phase distortion in the CSI data by using a linear fitting preprocessing method; thirdly, partitioning the total CSI data according to time snapshots, and inputting the total CSI data into a two-dimensional sparse iteration covariance estimation algorithm to estimate a multipath signal angle-time delay parameter; and finally, through a clustering algorithm, locking direct path features and completing accurate positioning. According to the method, the number of array elements of the receiving array is virtually expanded by using the subcarriers, the bottleneck of limited physical array elements of commercial Wi-Fi equipment is broken through, the positioning precision is greatly improved, the deployment cost is low, the compatibility is high, and the method is suitable for indoor positioning and other scenes.

The application belongs to the technical field of indoor positioning, and particularly relates to a CSI-based indoor high-precision positioning method of a sensing-integrated system, comprising the following steps: S1: an algorithm initialization stage, signal preprocessing is performed; S2: an SVM is used to identify and classify a LoS path, according to a received signal, accurate identification and classification of the LoS path are realized; S3: according to the number of LoS paths, a corresponding positioning method is adopted to obtain a user position; and S4: output of the user position. The application considers the influence of non-direct paths in a complex indoor environment, and based on the CSI characteristics of ISAC signals, through fingerprint and model dual-mode positioning, the signal classification process is mainly to identify whether the signal received by the receiver is a LoS signal through a support vector machine, and the fingerprint positioning is used to accurately determine the position of the user, the algorithm has the advantages of high positioning precision, low complexity and suitability for complex indoor environments, and has a bright future in future indoor positioning.

The application provides a tour route planning method and device, belonging to the technical field of path planning, the method comprises the following steps: step 1: constructing a GIS map of a recreation place, marking the entrance, intersection and play point as a point with a unique identifier; step 2: connecting each point to generate a directed path, the directed path includes a one-way path and a two-way path; step 3: calculating the shortest path between any two points by using the Floyd algorithm to generate a shortest route set RS; step 4: receiving the starting point, ending point and traversal point set input by the user, and generating a planned route through the optimal path point bridging and correction algorithm. The tour route planning method and device provided by the application can quickly generate a tour route covering all specified points, with the shortest path, the least repetition and dynamic requirements.

The invention provides a remote management system and method which can more reliably grasp the state of an object such as a fender while avoiding restrictions of wireless communication, and which can suppress energy consumption in a grasp step. A sensor (2) operated by a battery (4) and a transmission / reception terminal (3) are provided to each fender (9), and when transmission of detection data (M) detected by each sensor (2) to a relay device (5A) by radio waves (W) from each transmission / reception terminal (3), the detection data (M) are transmitted to the relay device (5A) by means of communication based on a predetermined LPWA communication standard. When the communication strength (S) between each transmission / reception terminal (3) and the relay device (5A) is equal to or greater than a reference value (Sc), transmission is performed via a direct path (Rd) from each transmission / reception terminal (3) to the relay device (5A), and when the communication strength (S) is less than the reference value (Sc), transmission is performed via a direct path (Rd) from each transmission / reception terminal (3) to the relay device (5A). A detour path (Rb) of another transmission / reception terminal (3) exists between each transmission / reception terminal (3) and the relay device (5A) for transmission, a management index based on the detection data is stored in the server (5B), and the management index is displayed on specific devices (6a, 6b, 6c) capable of accessing the server (5B).

The application provides a kind of air-ground channel modeling method suitable for millimeter wave phased array, comprising: step 1, establishing the Two-Ray channel geometric model of direct path and multiple reflection paths;Step 2, according to the geometric model, calculate the Rician factor;Step 3, according to the geometric model, determine the time delay of the reflection path;Step 4, according to the carrier frequency and the speed of motion, determine the Doppler frequency offset of the direct path;Step 5, according to the geometric model and Jacks distribution, determine the Doppler power spectrum of the reflection path;Step 6, based on the generalized stationary uncorrelated scattering model, establish the channel model. Through the application, a high-accuracy phased array air-ground channel model can be established, by considering the departure angle of the phased array transmitting antenna and the arrival angle of the receiving antenna in the air-ground channel model, the accuracy of the Rician factor calculation and the accuracy of the Doppler spread power spectrum in the fading channel can be improved.

The invention discloses a three-dimensional indoor positioning method based on visual sense and 5G sensing fusion, and relates to the technical field of indoor positioning and space perception. The method comprises the following steps: modeling an indoor reflecting surface to obtain a virtual anchor point; a user azimuth vector detected, identified and tracked by a camera target is projected to a scene reflection surface to construct a candidate reflection path and identify a direct incidence path, and the candidate reflection path and the direct incidence path are mapped to a beam codebook of a base station, so that a beam search range is narrowed, and a higher angle resolution is obtained; the user terminal establishes a communication link through the reference signal, and the base station acquires channel state information; in the channel parameter processing stage, angle and time delay estimation is carried out on channel parameters; an estimation result is matched with a direct or virtual anchor point path, and pseudo paths which do not conform to scene constraints are eliminated, so that a direct path and an effective reflection path are distinguished; the position of the user is jointly solved by using multi-angle constraints formed by the direct path and the reflection path, and continuous estimation of the three-dimensional position of the user is realized by combining a filter.

This invention relates to a method for improving the accuracy of UWB positioning data, belonging to the field of precise positioning technology in mines. Specifically, the method involves: setting a noise threshold and an empirical medium constant at the positioning receiver, while the positioning system receives the positioning signal; determining whether multipath effects exist in the received signal; if multipath effects exist, calculating the probability PT of no direct path extraction, and using PT to determine whether a direct path is not extracted due to an excessively high noise threshold; the positioning algorithm performs positioning calculations on the successfully extracted direct paths to obtain positioning coordinates (x0, y0, z0); and feeding the positioning coordinates (x0, y0, z0) into a Kalman filter algorithm for filtering to obtain the filtered result (x0, y0, z0). n+1 ,y n+1 ,z n+1 By comparing (x0, y0, z0) and (x n+1 ,y n+1 ,z n+1 The system determines whether the current positioning data is reliable; if the positioning data is reliable, the positioning value is optimized using Kalman filtering, and the current positioning ends. This invention can improve the accuracy and reliability of UWB positioning data, and improve the precision of underground mine positioning.

A user equipment (UE), base station, baseband processor, or other network device may operate in a network to communicate in a single path (SP) sidelink (SL) relay or in a multi-path (MP) SL relay configuration for concurrent or simultaneous communication in direct and indirect paths. The UE may initiate a change to the MP SL relay or release the MP SL relay as an SP SL relay for facilitation by the network base station. Traffic communication may be provided over the indirect path in response to an acknowledgement that the indirect path is established for communication.

This application discloses a path establishment method including: determining, by first user equipment (UE), based on a transmission path configuration of a signaling radio bearer SRB1 carrying Uu signaling, whether to send a PC5 radio resource control RRC message to relay UE, where the PC5 RRC message is used to trigger the relay UE to enter a connected state; where a transmission path corresponding to the transmission path configuration of the SRB1 carrying Uu signaling includes at least one of the following: an indirect path between the first UE and a network-side device, and a direct path between the first UE and the network-side device; where the indirect path includes a PC5 link between the first UE and the relay UE and a Uu link between the relay UE and the network-side device.

Systems, methods, apparatuses, and computer program products for controlling the PDCP level data split from a remote UE over MP. One method may include a user equipment, receiving a message from a network entity comprising an indication of a path control via a configured grant, and, based at least in part on the indication of the path control via the configured grant, performing data transmission over at least one of a direct path with the network entity and an indirect path with the network entity via a relay user equipment.