977 results about "Air interface" patented technology

Disclosed are techniques for wireless environment sensing. In aspects, a device-equipped target object receives a radio frequency (RF) sensing signal from a transmitter device, the RF sensing signal configured to enable a sensing device to sense target objects in an environment of the sensing device, the target objects including the device equipped target object. The device-equipped target object transmits an RF sensing response signal to the sensing device in response to reception of the RF sensing signal. In an aspect, a sensing device receives an RF sensing response signal from a device-equipped target object, the RF sensing response signal configured to enable the sensing device to sense the device-equipped target object in an environment of the sensing device. The sensing device detects a presence of the device-equipped target object in the environment of the sensing device based at least on the RF sensing response signal.

A method performed by a user equipment (UE) for detecting performance degradation for machine learning (ML)-model performance of the UE is provided. The method comprises sending, to a network node, at least one ML-model output; and sending, to the network node, communication information, wherein the communication information is associated with communication performance of the UE. The at least one ML-model output and the communication information associated with communication performance of the UE facilitate determination of a cause of degraded performance of the UE including at least one of a cause related to the ML model or a cause unrelated to the ML model.

A first network element (a training data collection network element) receives first information from a second network element (an AI model training network element), the first information being for determining validity of candidate training data collected by the first network element. The first network element collects candidate training data of an AI model, and determines the validity of the candidate training data based on the first information. When the candidate training data is valid, the first network element sends valid candidate training data to the second network element, but does not send invalid candidate training data. When there is no valid candidate training data, the first network element indicates, to the second network element, that the training data collected this time is invalid, and does not send the candidate training data collected this time to the second network element. Waste of air interface resources can be reduced.

The invention discloses a power line carrier communication protocol data link layer simulation method, which comprises the following steps of: constructing a physical layer interface simulation module, simulating power line carrier or wireless air interface transmission through TCP socket communication, and creating a high-priority task process to process time slot-level time sequence synchronization for triggering a physical layer transceiving action at a specified time slot; configuring a time sequence synchronization control mechanism, obtaining a timestamp carried by a beacon frame sent by a concentrator, calling a clock synchronization function to align a site local clock with the timestamp when receiving the head of the beacon frame, adding delay compensation before sending data, and delaying and starting a physical layer receiving action to offset IP network transmission delay when receiving the data; a data frame processing flow is realized, a header callback function is controlled through a registration frame to respond to a physical layer state change, TCP message data is cached by using an annular queue, and a physical layer interface simulation module analyzes a message, distributes a memory and processes a load at a specified time slot after time sequence synchronization.

The invention provides a cross-medium remote control communication method, device and equipment and a storage medium, which are applied to a cross-medium remote control system comprising a transmitting end and a receiving end. The method comprises the following steps that: a transmitting end responds to a key operation of a user, generates a key signal, codes the key signal, and generates a modulation electric signal containing a synchronous head signal and an instruction frequency signal; environment parameter information is collected, dynamic parameter adjustment is carried out on the modulation electric signal according to the environment parameter information, and the adjusted modulation electric signal is converted into a modulation light signal through an LED; a receiving end receives the cross-medium transmission optical signal, carries out amplification and digital processing, and extracts frequency characteristic information through spectrum analysis; and analyzing a control instruction according to the frequency characteristic information and executing corresponding equipment control operation. Through the specific time-frequency signal structure design and the multi-stage signal processing technology, the stability problem of water-air interface signal transmission is effectively solved, and low-delay and high-success-rate cross-medium remote control communication is achieved.

Apparatus and methods for determining an uplink pathloss for a communications device. A system comprises: a first infrastructure equipment; a second infrastructure equipment; and a communications device configured to communicate with the first infrastructure equipment via a first air interface provided by the first infrastructure equipment, and to communicate with the second infrastructure equipment via a second air interface provided by the second infrastructure equipment. The first air interface is an uplink-only interface for the communications device, and wherein the second air interface is both an uplink and downlink interface for the communications device. The uplink pathloss for the communications device on the first air interface is determined based on a received signal power of a first reference signal at the first infrastructure equipment and a transmission power of the first reference signal.

The invention provides a communication method, a communication device and a communication system, which can support flexible change of the number of ports of a reference signal in a scene of dynamic turn-off of an RF channel. In one embodiment, a network device transmits reference signals of m1 ports on part or all of a reference signal resource that can be used to transmit reference signals of at most M ports and support estimation of channels of at most K ports, the m1 ports of the reference signals being from the M ports. The terminal can perform channel estimation and send the CSI according to the reference channel estimation auxiliary information and the reference signal. In the method, m1 < = k1 < = K, and m1 < = M < = K. Namely, the terminal can perform channel estimation according to the reference signals of the minority of ports by using the reference channel estimation auxiliary information to obtain the channels of the majority of ports. Along with the reduction of the number of ports of the reference signal sent by the air interface, the air interface overhead brought by the reference signal is also reduced by considering port multiplexing.

The present application relates to the field of sensing, and discloses a sensing method, apparatus and device, and a storage medium. The method is executed by a terminal device. The method comprises: receiving first information, the first information comprising configuration information related to sensing. The configuration information related to sensing is configured for a UE, so that the UE can execute a sensing service on the basis of the expectation and instruction of a network side, preventing the UE from performing meaningless, repetitive and redundant operations to waste power consumption, preventing the UE from exchanging meaningless, repetitive and redundant signaling or data with the network side to waste air interface resources, and helping to achieve the effects of saving energy and saving air interface resources.

The invention relates to the technical field of wireless communication, and particularly discloses a spectrum sensing method and device for a cooperative frequency switching network and a communication system, and the method comprises the steps: generating a service network air interface frequency utilization situation table according to a network-level cooperative frequency control instruction transmitted by a guard network; a frequency spectrum sensing control instruction is generated according to the service network air interface frequency use situation table, the frequency spectrum sensing control instruction is diffused through a guard network, and the service terminal guard module can sense and monitor a service network air interface according to the frequency spectrum sensing control instruction and a to-be-sensed frequency set; and sensing and monitoring a service network air interface according to the to-be-sensed frequency set. The spectrum sensing method of the cooperative frequency switching network provided by the invention can assist in improving the anti-interference capability of the cellular network.

Embodiments of the present disclosure relate to method and apparatus for handing over a UE in an IAB network. According to some embodiments of the disclosure, a UE may: communicate with a first BS via a wireless network node; receive an RRC reconfiguration message for handing over the UE from the first BS to a second BS together with the wireless network node; and in response to receiving the RRC reconfiguration message, maintain an air interface between the UE and the wireless network node while performing the handover from the first BS to the second BS.

The invention relates to the technical field of unit detection, in particular to an ultrasonic detection method and device for the de-molding defect of a hydroelectric generating set bearing bush coating layer, and the method comprises the steps: obtaining ultrasonic data reflected by a base layer and a coating layer of a hydroelectric generating set bearing bush reference block; calculating a first reflectivity between a matrix layer interface and a cladding layer interface and a second reflectivity between the cladding layer interface and an air interface according to the ultrasonic data; according to the first reflectivity and the second reflectivity, the echo height difference is calculated, and the echo height difference is the echo height difference between the matrix layer interface and the cladding layer interface and the echo height difference between the cladding layer interface and the air interface; and according to the echo height and the echo height difference, carrying out ultrasonic detection on the actual hydroelectric generating set bearing bush coating layer to generate a de-molding defect detection result. Therefore, the problems of low detection efficiency, unstable accuracy, influence on safe operation of the unit and the like caused by the fact that the bearing bush coating layer de-molding defect of the hydroelectric generating set is detected depending on manual experience in the related technology are solved.

The invention provides a low-orbit satellite ground terminal air interface performance test method and device, and the method comprises the steps: calculating satellite position data observed by a to-be-tested ground terminal at different moments according to a preset ground terminal position and low-orbit communication satellite ephemeris data, and generating a visible satellite motion track of the ground terminal position; selecting a preset number of track points on the visible satellite motion track as test points, and importing satellite position data of the test points into a test system; when the measurement antenna moves to the first test point, satellite position data corresponding to the first test point is transmitted back to the ground terminal to be tested; the to-be-tested ground terminal generates wave beams according to the received satellite position data, connection is established, and the test system completes air interface wireless performance measurement of the first test point; all the test points are traversed through the processing process, air interface wireless performance measurement of the ground terminal to be tested is completed, and air interface wireless performance measurement results corresponding to all the test points are obtained.

The invention provides a synchronization adjustment method and system, computer equipment and a storage medium, and relates to the technical field of communication, and the method comprises the steps: obtaining synchronization information and an air interface signal of a current cell where a terminal is located; generating a first time domain signal based on the synchronization information; performing down-sampling processing on the air interface signal to obtain a second time domain signal; performing correlation calculation on the first time domain signal and the second time domain signal to obtain a correlation value sequence; and carrying out weight gravity center estimation on a peak value in the correlation value sequence, determining a timing offset, and adjusting a windowing position according to the timing offset to complete synchronous adjustment. According to the synchronization information disclosed by the invention, the accurate timing position is obtained by carrying out weight-based correlation calculation on the synchronization information and the air interface signal, so that the time drift error of the terminal in the signal receiving process is counteracted. The method is especially suitable for scenes with wide coverage and multipath delay exceeding the cyclic prefix length, can significantly reduce inter-symbol interference, and improves the synchronization precision and overall demodulation performance of a terminal receiver.

The present application relates to the technical field of communications, and particularly to a congestion control method and apparatus, and a readable storage medium. The method comprises: a data sender sends a data packet 1, wherein the data packet 1 carries window information 1 that is used for requesting to adjust a transmission window of data; a base station determines window information 2 on the basis of the window information 1 and a sensed air interface resource, wherein the window information 2 is used for indicating a transmission window of data; the base station sends the window information 2 to the data sender; the data sender determines the transmission window of the data on the basis of the window information 2. Use of the embodiments of the present application can reduce packet loss in a network, and can reduce the time delay of data transmission and improve the reliability of the data transmission.

Solutions for low latency edge processing for unmanned aerial vehicle (UAV, “drone”) wireless links (e.g., air interfaces) include: receiving, by a first base station of a cellular network, from a UAV controller, over a first air interface, a first signal; routing the first signal from the first base station to the UAV, over a second air interface, without routing the first signal through a virtual private network (VPN); and controlling a flight parameter of the UAV based on at least the first signal. Further examples include: registering, by a UAV controller, with a cellular network; registering, by a UAV, with the cellular network; transmitting, by the UAV controller, to a first base station of the cellular network, over a first air interface, a first signal; and receiving, by the UAV, from the cellular network, over a second air interface, the first signal, without routing the first signal through a VPN.

The invention discloses a data processing method and device, a terminal and network side equipment. The data processing method of the embodiment of the invention belongs to the technical field of communication, and comprises the steps that a first protocol layer of network side equipment performs first processing on a data packet, and the first processing comprises at least one of the following items: data distribution related processing; performing data aggregation related processing; wherein the first protocol layer is located on an air interface access technology protocol layer.

Provided in the present application are a radio bearer configuration method and device, a terminal, a base station and a readable storage medium, the method comprising: acquiring a first message sent by a base station, the first message comprising at least one of a radio bearer type, a radio bearer version number and first indication information, the first indication information is used for indicating whether a radio bearer of the radio bearer type is allowed to be established. Therefore, the terminal can subsequently configure the radio bearer based on the first message, so as to realize an agile response demand of a business service function by calling the radio bearer. The problems that service calling is complex and air interface transmission efficiency is affected due to the fact that a user plane function is split into services with small granularity according to a traditional micro-service design concept are solved.

The invention discloses a method, equipment and medium for automatically testing the sensitivity of a broadband radio frequency system, and relates to the technical field of broadband radio frequency testing, and the method comprises the steps: starting a testing process, and coordinating a plurality of calibration equipment and equipment to be tested in a wireless network in the same testing time slot, synchronously sampling spectrum data of each calibration device through an air interface and processing the spectrum data into a noise distribution parameter set; and dynamically adjusting the output power of the vector signal generator and synchronously monitoring the bit error rate change according to the received power predicted value until the difference value between the bit error rate and a preset target bit error rate threshold value meets a convergence condition, recording the received power value during convergence as a sensitivity test result, and generating a test report. By generating the high-precision dynamic noise map and calculating the compensation transmitting power calibration value, accurate sensing and active compensation of the space noise of the test environment can be realized.

The invention provides an information transmission method, device and system. In an example, the method can be applied to an AI training scene, such as a scene in which training data is transmitted between network equipment and a training device through an air interface. The method comprises the following steps: network equipment determines a first data set, wherein data in the first data set is used for training a first artificial intelligence AI model; and the network equipment sends the first data set and first indication information to the training device, wherein the first indication information indicates functions and / or features of the first AI model. The method can be applied to an air interface transmission scene of training data. When the network device issues the training data, the indication information indicating the purpose of the data is carried, different training data can be associated or distinguished, the training device can conveniently recognize the association between different training data and the purpose of the training data so as to meet the training requirements of different AI models, and the overhead of the training device is saved.

A communication method and apparatus, relating to the technical field of communications. By means of detailed analysis of capability information of a terminal device, it can be seen that the capability information of the terminal device corresponding to at least one band combination (BC) has a complex structure, comprises a large amount of data, and accounts for a large proportion of the capability information of the overall terminal device, and the main reason why the capability information of the terminal device is different is capability information other than the capability information of the terminal device corresponding to the at least one BC. On this basis, it is proposed to use first identification information to identify the capability information of the terminal device corresponding to the at least one BC, and when the terminal device reports own capability information, the capability information of the terminal device corresponding to the at least one BC can be replaced with the first identification information, so that the capability information of the terminal device can be accurately indicated while the signaling overhead is reduced, the air interface resource occupancy rate is reduced, the requirements on the storage space and management capability of a network side device are reduced, and the implementation complexity is reduced.

The invention provides a communication method, a communication device and a communication system, which can support flexible change of the number of ports of a reference signal in a scene of dynamic turn-off of an RF channel. A network device sends a reference signal to a terminal on a reference signal resource, the reference signal resource can be used for transmitting reference signals of at most M ports and supporting estimation of channels of at most K ports, and the reference signals are m1 ports of the M ports. The terminal can estimate channels of k1 ports in the K ports according to the reference channel estimation auxiliary information and the reference signal, and then determines and sends the CSI. In the method, m1 is smaller than M, and k1 is smaller than K and larger than or equal to m1. Namely, the terminal can estimate the channels of the majority of ports according to the reference signals of the minority of ports by using the reference channel estimation auxiliary information. Along with the reduction of the number of ports of the reference signal sent by the air interface, the air interface overhead brought by the reference signal is also reduced by considering port multiplexing.

The invention discloses a scheduling method, a scheduling system and a scheduling device, which are used for providing a feasible way to avoid random backoff conflicts of air interfaces. The method comprises: a control node receiving service information reported by N network nodes respectively, the service information being used for indicating information of service data needing to be transmitted by the network nodes through a channel, N being a positive integer; the control node determines M network nodes scheduled in the current scheduling period according to the service information reported by the N network nodes respectively, and M is a positive integer; and the control node sends a first scheduling message to the M network nodes, wherein the first scheduling message is used for indicating that the M network nodes are allowed to compete for channels.

A method for processing small data transmission, a device and a readable storage medium are provided, which relates to the field of communication technology to save air interface resources. The method includes: receiving, by a first access network node, downlink small data transmission (SDT) data and / or downlink non-access-stratum (NAS) signaling of a target terminal; determining, by the first access network node, that an anchor point transfer occurs on the target terminal; and sending, by the first access network node, SDT configuration information to a second access network node, where the second access network node is accessed by the target terminal, and the SDT configuration information is configured to process the downlink SDT data and / or the downlink NAS signaling of the target terminal.

The invention discloses a communication method and device, relates to the technical field of communication, and can save air interface resources. The method comprises: a base station sending first information; a terminal receives first information, wherein the first information indicates a first parameter corresponding to an orthogonal cover code (OCC) category. The base station sends a second parameter, the terminal receives the second parameter, and the first parameter comprises the second parameter. And the terminal sends uplink information through the OCC category corresponding to the second parameter according to the second parameter and the first information. And the base station receives the uplink information through the OCC category corresponding to the second parameter. According to the scheme, the terminal receives the corresponding relation between the OCC category and the first parameter in advance. In this way, only the second parameter corresponding to the OCC category needs to be received and the OCC category does not need to be received again when the OCC is actually scheduled to be subjected to OCC coding. Therefore, the signaling overhead consumed by transmitting the OCC category is saved, and air interface resources are saved. In addition, data is transmitted in an OCC mode, the number of terminals sending uplink data can be increased, and the system capacity is improved.

This application provides a method for sending training data of an AI model, which is applied to a scenario in which a reporting network element of the training data sends the training data to a training network element of the AI model. After obtaining the training data, the reporting network element classifies the training data into reference data and non-reference data, and indicates the training data by sending first-type information and second-type information to the training network element. The first-type information includes full information of the reference data, and the second-type information includes incremental information of the non-reference data relative to reference data corresponding to the non-reference data. The training data is indicated by using the full information of the reference data and the incremental information corresponding to the non-reference data, so as to help reduce overheads of sending the training data, thereby helping reduce air interface overheads in an AI model training or updating process, reduce a transmission delay, and improve model training performance.

A low-altitude unmanned aerial vehicle cooperative sensing system based on 5G-A communication and sensing integration comprises a plurality of 5G-A communication and sensing integration base stations deployed on the ground, a plurality of low-altitude flight unmanned aerial vehicle nodes and a cooperative sensing dispatching center located on the core network side, and the 5G-A communication and sensing integration base stations are provided with millimeter wave large-scale MIMO antenna arrays integrating communication and radar sensing functions. The unmanned aerial vehicle node is used for transmitting communication signals and sensing detection beams to the air at the same time, the unmanned aerial vehicle node carries a communication sensing fusion terminal supporting a 5G-A air interface protocol, and the terminal comprises a radio frequency receiving and transmitting module, a beam forming processor and a local sensing data caching unit. According to the invention, the millimeter wave large-scale MIMO antenna array of the 5G-A communication and sensing integrated base station is utilized and is divided into the communication sub-array and the sensing sub-array which are independent and controllable, so that the extreme multiplexing of a frequency spectrum and hardware resources is realized, and the communication and the sensing can run in parallel on the same frequency band and the same equipment without interfering with each other.

The embodiment of the application provides a method for controlling transmission and a related device, the method comprises the following steps: when a first device is in a non-radio resource control (RRC) connected state, a first network device is sent first information or second information, the first information indicates that small packet data transmission (SDT) is requested to be stopped, the second information indicates that a gap configuration for SDT is requested, or the second information indicates that SDT is requested to be suspended. The embodiment of the application can be applied to the scenario that the first device may not continue SDT, and can avoid the case that the first network device continues to schedule resources for SDT when the first device no longer continues to listen to SDT, thereby saving air interface resources.

The embodiment of the invention provides a communication method and related equipment. And the terminal equipment sends first indication information to the network equipment, the first indication information being used for indicating that the terminal equipment supports that a first long term evolution (LTE) carrier and a first new air interface (NR) carrier are discontinuous, and the first LTE carrier and the first NR carrier are two carriers in an in-band EN-DC. And the terminal equipment receives the configuration information sent by the network equipment, and accesses the network according to the first rule and the configuration information. Wherein the configuration information is used for configuring the first LTE carrier and the first NR carrier. The first rule comprises that the nominal channel interval is equal to the channel interval between the LTE carrier and the NR carrier in the in-band discontinuous EN-DC, and the nominal channel interval is the channel interval between the LTE carrier and the NR carrier which are adjacent in the in-band discontinuous EN-DC. Through the first rule, the terminal equipment which only reports discontinuous LTE carriers and discontinuous NR carriers supporting in-band EN-DC can access a network which only supports continuous LTE carriers and continuous NR carriers supporting in-band EN-DC.

A method of controlling a distributed unit, DU, connected to a central unit, CU, of a wireless communications network is provided. The method comprises receiving, from another DU connected to the CU, information for controlling communications with a communications device controlled by the DU. The information for controlling communications with the communications device being received over an air interface connecting the DU and the other DU. The method comprises controlling communications with the communications device based on the information for controlling communications with the communications device received over the air interface. The controlling the communications with the communications device comprises executing one or more control functions including at least a radio resource management, RRM, function.

The invention discloses a scheduling method, a scheduling system and a scheduling device, which are used for providing a feasible way to avoid random backoff conflicts of air interfaces. The method comprises: a control node receiving service information reported by N network nodes respectively, the service information being used for indicating information of service data needing to be transmitted by the network nodes through a channel, N being a positive integer; the control node determines M network nodes scheduled in the current scheduling period according to the service information reported by the N network nodes respectively, and M is a positive integer; and the control node sends a first scheduling message to the M network nodes, wherein the first scheduling message is used for indicating that the M network nodes are allowed to compete for channels.