55 results about "Basis selection" patented technology

A quantum computing system and methods for performing fusion based quantum computing on encoded qubits. A fusion controller sequentially performs a series of fusion measurements on respective photonic quantum modes of first and second encoded qubits to obtain a respective series of classical measurement results. For respective fusion measurements of the series of fusion measurements, a basis for performing the respective fusion measurement is selected based on classical measurement results of previous fusion measurements. An encoded fusion measurement result is determined based on the classical measurement results, and the encoded fusion measurement result is stored in a memory medium.

The invention relates to a frequency domain adaptive refining and feature decoupling fused target detection distillation method, which comprises the following steps: at a teacher network side, performing adaptive frequency domain decomposition on intermediate features through a learnable multi-wavelet basis selection network, and generating pure teacher de-noising features by using a cross-scale collaborative noise reduction module; on a student network side, generating a frequency domain response diagram by using the features, guiding the student features to be decoupled into geometric and semantic components, and dynamically guiding bidirectional fusion and attention enhancement of multi-scale features to obtain student fusion features; performing cross-scale refined alignment on the two, and training a student network based on the comprehensive distillation loss; and only a lightweight student network is reserved during final deployment. According to the method, the technical problems of feature robustness loss, insufficient multi-scale information fusion, low small target detection precision and the like of the existing knowledge distillation method in lightweight target detection model training can be solved.

Apparatus and methods are provided for port selection codebook configuration when a user equipment (UE) receives communicates with a plurality of transmission and reception points (TRPs). For multiple TRP (multi-TRP) coherent joint transmission (CJT) channel state information (CSI) reporting, a codebook is provided with a codebook structure by (I) or (HI) in which t is a TRP index corresponding to a particular TRP, T is a total number of TRPs, (III) are Type II CSI codebooks reported for TRPs corresponding to index t, and (IV) are linear combination coefficients applied to each codebook for different TRPs. (V) for a spatial basis selection matrix (VI) a combination coefficient matrix (Vs) and a frequency basis selection matrix (VIII).

The invention relates to the technical field of automobile electronic intelligent fault diagnosis, and discloses a multi-modal data fusion automobile air conditioner controller abnormal state monitoring method, which comprises the following steps: deploying five types of intelligent sensor nodes at key positions of an automobile air conditioner system to realize hardware-level time synchronization and adaptive sampling; a fast ICA algorithm is combined with sliding window processing to realize signal separation, a self-adaptive wavelet basis selection mechanism is designed to carry out time-frequency analysis, and principal component analysis is used to carry out feature dimension reduction; constructing a lightweight attention fusion network, dynamically adjusting different modal feature weights, and mining feature relevance through a cross-modal interaction module; a hierarchical progressive anomaly detection architecture is designed, a statistical method and a neural network detection result are fused, a time consistency constraint mechanism is established, and multi-time scale anomaly prediction is realized; and fault type identification and severity evaluation are carried out in combination with an expert knowledge base, and a multi-priority protection strategy and an emergency plan are formulated.

The invention discloses a YOLOv11 road disease detection method and system based on multi-scale feature enhancement. The method comprises the steps of road image acquisition and marking, adaptive learning rate adjustment and data enhancement, construction of a YOLOv11 model embedded with a sub-pixel level edge enhancement module and a wavelet transform feature extraction module, staged training, model evaluation, disease detection and the like. Wherein the sub-pixel-level edge enhancement module is used for enhancing fine crack features through multi-operator fusion and a sub-pixel convolution technology; the wavelet transformation module improves the multi-scale feature perception capability through adaptive wavelet basis selection and a multi-stage decomposition and reconstruction mechanism. The system correspondingly comprises a data preprocessing module, a model building module, a training optimization module and an evaluation deployment module. On the basis of keeping the real-time performance of the YOLOv11, the detection precision and robustness of multi-scale diseases in low-contrast, sub-pixel-level cracks and complex environments are remarkably improved, and the method is suitable for road maintenance and safety monitoring scenes.

The invention relates to a compressed sensing-based adaptive wireless sensor network optimization method, which comprises the following steps of: constructing a sensor data transmission tree, and collecting historical data of a sensor network; constructing a sparse dictionary based on the collected historical data of the sensor network; and performing compression processing on the real-time sensor network data by using the sparse dictionary, and performing recovery of the sensor network data in the sink node. According to the compressed sensing algorithm based on adaptive dictionary learning, a mechanism is designed to meet the adaptive requirement of the compressed sensing algorithm in a large-scale sensor network, and the limitation of sparse base selection is overcome to a certain extent.

Various aspects of the present disclosure generally relate to reducing overhead and / or user equipment (UE) complexity when performing independent spatial domain (SD) basis selection in a channel state information (CSI) codebook. For example, a UE may select any SD basis in a codebook for a first layer, and may SD bases selected for additional layers may be restricted to SD bases that are orthogonal to the first SD basis. Furthermore, SD bases that are selected for a layer may be excluded from SD basis selections for subsequent layers, ensuring that different SD bases are selected for each layer. Accordingly, because SD basis selections for multiple layers are not reused and guaranteed to be orthogonal, a common or shared co-phase coefficient may be used for each SD basis selection to reduce a per-layer co-phase reporting overhead and / or UE complexity by avoiding a need to independently select co-phases for multiple layers.

The invention discloses a partial discharge signal feature extraction method and system, and the method comprises the following steps: collecting a current signal on a grounding loop cable of detected electrical equipment, and carrying out the preprocessing of the current signal; converting the preprocessed signal into a two-dimensional matrix, and performing singular value decomposition on the two-dimensional matrix to obtain a principal component; matrix reconstruction is carried out based on the principal component to generate a de-noising matrix, and the de-noising matrix is restored to a time domain signal sequence; performing discrete wavelet transform on the time domain signal sequence to obtain a multi-level approximation coefficient and a detail coefficient; the discrete wavelet transform selects a wavelet basis function from the candidate wavelet basis set based on a preset adaptive wavelet basis selection mechanism, and adaptively determines the number of wavelet decomposition layers based on the signal dominant frequency characteristics; and inputting the approximation coefficient and the detail coefficient into an inverse wavelet transform module to obtain a final partial discharge signal. According to the method, efficient, accurate and universal partial discharge signal feature extraction can be realized.

The invention relates to the field of psychological health monitoring, and discloses a psychological health dynamic management system, which comprises a data acquisition module used for acquiring time, space and behavior multi-modal data of a user in real time; the tensor processing module is connected with the data acquisition module and is used for constructing the multi-modal data into a three-dimensional tensor and carrying out dimension reduction decomposition on the three-dimensional tensor; the quantum privacy module is connected with the tensor processing module and is used for performing quantization coding and privacy protection processing on the decomposed feature gradient; the federation aggregation module is connected with the quantum privacy module and is used for executing collaborative optimization of model parameters among distributed nodes; and the correction compensation module is bidirectionally connected with the tensor processing module and the federal aggregation module. The quantum privacy module realizes irreversible hidden transmission of gradient data, adopts a quantum state superposition coding and dynamic measurement basis selection mechanism, and ensures that the transmission process meets differential privacy constraints through non-orthogonal basis projection measurement and quantum noise injection.

Apparatus and methods are provided for CSI enhancement for multi-TRP coherent joint transmission. A user equipment (UE) receives signals from a plurality of transmission and reception points (TRPs). The UE determines, based on the signals, multiple TRP (multi-TRP) coherent joint transmission (CJT) channel state information (CSI) report information for a codebook based on a spatial basis selection matrix, a combination coefficient matrix, and a frequency basis selection matrix. The spatial basis selection matrix is layer common, polarization common, and TRP independent. The UE reports, to one or more of the plurality of TRPs, the multi-TRP CJT CSI report information.

Methods, systems, and devices for wireless communications at a user equipment (UE) are described. The UE may receive one or more reference signals. The UE may select, from among a set of spatial domain (SD) bases, a first SD basis. The UE may select, from among a subset of the set of SD bases, a second SD basis, where the subset of the set of SD bases comprises a first group and a second group, where each SD basis of the first group is orthogonal to the first SD basis in one dimension, and where each SD basis of the second group is orthogonal to the first SD basis in two dimensions. The UE may transmit a report indicative of the first SD basis and the second SD basis.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select a first spatial domain (SD) basis from a full candidate SD basis set. The UE may select one or more additional SD bases from a constrained candidate SD basis set, wherein the constrained candidate SD basis set is a subset of the full candidate SD basis set that is based at least in part on a value of a rank indicator (RI) and a total number of channel state information (CSI) reference signal (CSI-RS) ports exceeding thirty-two. The UE may transmit, to a network node, CSI feedback that indicates the first SD basis, the one or more additional SD bases, and the value of the RI. Numerous other aspects are described.

A communication method and a communication apparatus. The method comprises: acquiring a first basis, wherein the first basis is a channel basis of a first network device, the first basis is composed of L columns of basis vectors, and L is a positive integer; receiving a first reference signal sent by the first network device; determining a first superposition coefficient vector on the basis of the first reference signal and the first basis, wherein the first superposition coefficient vector comprises K superposition coefficients, and K is a positive integer less than or equal to L; and sending the first superposition coefficient vector and a first basis selection vector to a second network device, wherein the first superposition coefficient vector, the first basis selection vector and the first basis jointly represent a first channel matrix of the first network device, and the first basis selection vector comprises column indexes in the first basis corresponding to the K superposition coefficients.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more channel state information (CSI) reference signals (CSI-RSs). The UE may transmit a CSI report associated with the one or more CSI-RSs, wherein the CSI report is associated with a beam-common time-domain (TD) basis set selection and one or more per-beam TD basis subset selections from the beam-common TD basis set selection. Numerous other aspects are described.

The application relates to the technical field of power system oscillation analysis, and discloses a method for identifying an ultra-high voltage direct current sending-out system oscillation source based on wavelet analysis. The method comprises the following steps: collecting electrical quantities of measuring points, pre-processing the electrical quantities to construct an input tensor, inputting the input tensor into four wavelet branches to perform five-layer convolution pooling to obtain feature maps, adaptively weighting and fusing the feature maps through a scale channel joint attention network, inputting the feature maps into a bidirectional long short-term memory network to calculate an oscillation source probability, an energy flow direction and a frequency energy in combination with historical states, and determining an oscillation source position according to a comprehensive criterion. The application solves the problems that wavelet basis selection depends on experience, multiple oscillation sources are difficult to separate, and dynamic tracking capability is lacking, and improves the accuracy and real-time performance of ultra-high voltage system oscillation source identification.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more channel state information (CSI) reference signals (CSI-RSs). The UE may select a first spatial domain (SD) basis from a spatial codebook based at least in part on a measurement of the one or more CSI-RSs. The UE may select remaining SD bases within a same orthogonal oversampling group as the first SD basis, where a size of the orthogonal oversampling group is N1 by N2 of the spatial codebook, and N1 and N2 are dimensions representing a quantity of CSI-RS ports. The UE may transmit an indication of the selected first SD basis and the selected remaining SD bases in a CSI report. Numerous other aspects are described.

An apparatus and system for beamspace compression of Sounding Reference Signals (SRS) in wireless communication systems are described. High-dimensional SRS data exchanged between radio units (RUs) and distributed units (DUs) are compress using spatial correlation in antenna arrays and transform bases. Compressed coefficients are allocated and quantized, and pre- and post-channel estimation SRS data are supported. Active beamspace coefficients and associated basis information are transmitted from the RU to DU. Signaling mechanisms convey configuration and assistance data, including time-offset alignment, compression thresholds, and basis selection are transmitted from the DU to RU. Dynamic control of compression ratio, spatial resolution, and basis persistence are supported and used in advanced antenna configurations such as massive multiple-input-multiple-output (MIMO) and beamforming.

The invention provides a fast broadband DOA (direction of arrival) estimation method for signal frequency band isomerism based on joint space-frequency base selection, which comprises the following steps: a space-frequency base set is obtained based on a set angle range and set frequency band division, and each space-frequency base comprises an angle and a section of frequency sub-band; calculating a precision parameter estimation value and a discrimination parameter of each space-frequency base based on the array receiving signal so as to calculate a corresponding likelihood function added value; taking the space-frequency base corresponding to the maximum likelihood function added value as a target space-frequency base, and updating the space-frequency base activation set and the inference parameter based on the discrimination parameter of the target space-frequency base; if the updating requirement is met, the precision parameter estimation value and the discrimination parameter of each space-frequency base are updated based on the inference parameter until the updating requirement is not met so as to obtain a target space-frequency base activation set; combining the space-frequency bases in the target space-frequency base activation set to obtain DOA preliminary estimation results and frequency band information of the plurality of broadband signals; and a final DOA estimation result is obtained by using a maximum likelihood criterion.

The present specification provides a method for user authentication in a quantum communication system. More specifically, the method comprises the steps of: generating authentication quantum information by encoding an authentication message for user authentication on the basis of a pre-shared key, in which a basis for encoding each bit element constituting the authentication message is determined on the basis of a corresponding bit value of the bit element constituting the pre-shared key, the respective bit elements correspond to respective positions of the bit elements constituting the pre-shared key; sending authentication quantum information to a receiving end via a quantum channel; receiving, from the receiving end, authentication quantum information measurement information relating to a value obtained by measuring the authentication quantum information by means of the receiving end; and performing user authentication with the receiving end based on the authentication quantum information measurement information.

Apparatus, methods, and computer-readable media for facilitating exploiting indication redundancy between transmission reception point selection and spatial domain basis selection are disclosed herein. An example method for wireless communication at a user equipment includes receiving a configuration configuring a channel state information (CSI) report associated with coherent joint transmission (CJT) with multiple transmission reception points (TRPs). The example method also includes receiving a CSI reference signal (CSI-RS). The example method also includes transmitting the CSI report based on measurements performed on the CSI-RS, the CSI report based on the configuration, the CSI report indicating a beam selection of one or more selected beams of the multiple TRPs, the beam selection indicating a total number of selected beams, and the total number of selected beams is across all TRPs of the multiple TRPs and is irrespective of selected TRPs indicated in the CSI report.

The present disclosure provides a method for carrying out user authentication in a quantum communication system. More specifically, the method comprises the steps of: on the basis of a pre-shared key, generating authentication quantum information by encoding an authentication message for user authentication, wherein a basis, for encoding each bit element constituting the authentication message, the respective bit elements corresponding to the respective positions of bit elements constituting the pre-shared key, is determined on the basis of respective bit values of the bit elements constituting the pre-shared key; transmitting the authentication quantum information to a receiving end via a quantum channel; receiving, from the receiving end, authentication quantum information measurement information related to a value derived by means of the receiving end measuring the authentication quantum information; and carrying out user authentication with the receiving end on the basis of the authentication quantum information measurement information.

Methods, systems, and devices for wireless communications at a user equipment (UE) are described. The UE may receive one or more reference signals. The UE may select, from among a set of spatial domain (SD) bases, a first SD basis. The UE may select, from among a subset of the set of SD bases, a second SD basis, where the subset of the set of SD bases comprises a first group and a second group, where each SD basis of the first group is orthogonal to the first SD basis in one dimension, and where each SD basis of the second group is orthogonal to the first SD basis in two dimensions. The UE may transmit a report indicative of the first SD basis and the second SD basis.

A baseband processor is configured to receive a set of channel state information (CSI) reference signals (CSI-RS) from a network device, according to a reference signal configuration. The reference signal configuration is based at least in part on CSI-RS ports of the network device. The baseband processor is also configured to measure the set of CSI-RS; determine, based in part on the measurement of the set of CSI-RS and for a Type I codebook supporting more than 32 CSI-RS ports, CSI including a precoding matrix per layer in a set of layers; and transmit the precoding matrix per layer. The precoding matrix for a particular layer is based at least in part on a set of spatial bases for a spatial basis selection matrix, and a matrix containing a set of linear combination coefficients for the set of spatial bases and a set of frequency bases.

A processor-implemented method for beam management using zone information and zone-specific codebook generation includes receiving an input stream from one or more sensors. A zone of a user equipment (UE) is determined using a digital twin that models an environment observed by a network device based on the input stream. The zone is determined based on a positioning of the UE in the environment. A beam estimate is generated based on a codebook selected based on the zone.

Systems and methods described herein relate to a method of wireless communication. The wireless communication method may include a wireless communication node sending a first message to at least a first wireless communication device of a plurality of wireless communication devices, the first message including an indication of a first parameter in a first discrete set or a second discrete set associated with a base selection, to instruct the first wireless communication device to transmit a second message associated with channel state information (CSI) feedback. The wireless communication method may include the wireless communication node receiving a second message from each of the plurality of wireless communication devices, the second message including an indication of a second parameter associated with the base selection. The wireless communication method may include the wireless communication node determining a third message for downlink multi-user transmission.

Methods, systems, and devices for wireless communications are described. The method may include receiving one or more reference signals from a set of multiple transmission reception points, generating, based on receiving the one or more reference signals, a coherent joint transmission precoding matrix indicator (PMI) associated with the set of multiple transmission reception points, where the coherent joint transmission PMI includes one or more Doppler-domain components for each transmission reception point of the set of multiple transmission reception points, and transmitting a report including an indication of the coherent joint transmission PMI.

Methods and systems are disclosed to enhance reporting of precoding matrix indication (PMI) associated with fast changing channel response by independently selecting time-domain (TD) or Doppler-domain (DD) basis vectors for different groupings of spatial-domain (SD) and frequency-domain (FD) basis vectors. A UE may generate PMI by applying TD / DD basis vectors in addition to the SD and FD basis vectors to increase the validity time of the PMI. To address the increased signaling overhead associated with the TD / DD components, the UE may group selected spatial beams and FD components to drop inactive spatial beams or inactive FD components based on the LC coefficient matrix. The UE may independently select TD or DD basis vectors for different paired groups of spatial beams and FD components and report the sub-selection of the spatial beams, FD components. and TD or DD component for each group, and the reduced dimension of the LC coefficient matrix.

Certain aspects of the present disclosure provide techniques for method of wireless communication by a reader device, generally including identifying a first frequency resource set for communicating using a first waveform type and a second frequency resource set for backscatter communications using second waveform type, communicating with a first set of radio frequency (RF) devices using the first waveform type and the first frequency resource set, and communicating with a second set of RF devices using the second waveform type and the second frequency resource set.

The invention discloses a single-photon quantum secure direct communication attack method based on weak random basis selection. Bob prepares a group of single photon sequences SA, and Bob transmits all photons of SA to Alice through a quantum channel; eve intercepts all photons of the SA sequence; after receiving the photons, Alice randomly extracts a part of photons to carry out safety detection so as to obtain a detection error rate; if the bit error rate is detected to be lower than a preset threshold value, the Alice arranges the remaining photons into a sequence SB; the Eve intercepts a photon sequence SB sent by the Alice, and a new single photon state is prepared again, inserted into a corresponding position in the SB and sent to the user Bob; after the Bob receives the photon sequence SB, the photon sequence SB is stored in a quantum memory; alice publishes the position of a safety detection photon, and Bob carries out measurement and comparison so as to obtain a quantum bit error rate; and coding information of Alice is obtained. The method has important guiding significance for researching the security of the quantum secure direct communication under the actual experiment condition.

The invention relates to the technical field of predictive health management of electronic equipment, and discloses a cross-domain data analysis method and system for charger service life prediction.The cross-domain data analysis method for charger service life prediction.The method comprises the steps that high-frequency event stream data and charging stage identification in the fast charging process are obtained, generating an original event timestamp and amplitude data; converting the continuous signal into a pulse sequence by using a pulse encoder; integrating the time domain pulse mode and the frequency domain wavelet coefficient through a pulse-wavelet dual-channel fusion device, and outputting collaborative coding representation; inputting the collaborative features into a domain discriminator of stage perception, and generating stage transition probability distribution; and according to prediction error feedback, updating a pulse coding parameter and a wavelet basis selection strategy, and outputting an adaptive improved final prediction result. The technical problem that the influence of a transient event is difficult to transmit to long-term degradation prediction and the problem that the prediction precision is reduced due to domain offset in the charging stage are solved.