126 results about "Orthogonal sequence" patented technology

The invention discloses a switch cabinet fault diagnosis method and system based on thermal imaging and voiceprint. The method comprises the following steps: acquiring historical operation data, voiceprint data and thermal imaging data of a switch cabinet and an operation site picture of the switch cabinet; carrying out noise reduction processing on the acquired voiceprint data and historical operation data by adopting an infinite Kalman filter; constructing a space-time attention mixed expert model to carry out training prediction on the voiceprint data set and the historical operation data set, and obtaining predicted voiceprint data and historical operation data at the next moment; constructing an improved MaxViT-DF model to classify the collected thermal imaging data and the operation site picture, and training to obtain a fault feature image and a fault-free image; and fusing fault feature data output by the space-time attention hybrid expert model and the MaxViT-DF model by adopting multi-modal orthogonal sequence fusion. According to the invention, the accuracy and efficiency of fault diagnosis of the switch cabinet are improved, operation and maintenance personnel can find and process potential problems, and the reliability and safety of a power system are improved.

The invention provides a network security situation awareness method and system based on a multi-modal large model, and the method comprises the steps: obtaining the information of a single data source through an orthogonal sequence fusion technology, extracting the features of the single data source through a teacher-student model, carrying out the knowledge distillation, and carrying out the cross-modal alignment processing and fusion processing; the method comprises the steps of carrying out cross-modal correlation analysis on multi-modal data, generating an adversarial sample of the multi-modal data, calculating an optimal transmission path of features in an equalization system established by a depth equalization multi-modal fusion technology, carrying out feature integration, constructing a multi-modal depth situation awareness and prediction model based on a bidirectional encoder structure, and carrying out multi-modal depth situation awareness and prediction. And integrating a residual period prediction technology to carry out network security situation awareness. According to the method, multi-modal data of different sources are processed and analyzed, the network security situation can be comprehensively identified, complex network attack threats can be identified and defended, the missing report rate and the false report rate of network security threat identification are reduced, the identification accuracy is improved, and the model interpretability and transparency are enhanced.

Disclosed are an auxiliary pilot adaptive optimization method, apparatus and device, and a medium, which relate to the technical field of wireless communications, and solve the problems of static configuration, resource waste and single function of the existing auxiliary pilot. An auxiliary pilot frequency sequence is designed into a synchronous prefix and an estimation core section, and the synchronous prefix adopts a pseudo-random sequence with high autocorrelation and is used for timing synchronization (positioning through a sequence autocorrelation peak value) and frequency synchronization (calculating frequency offset through a phase difference) in a demodulation process; the estimation core section adopts an orthogonal sequence with a low peak-to-average ratio and is used for accurate channel estimation; the double-segment sequence is connected through a preset code pattern, and it is ensured that a demodulation end can perform synchronous analysis. By sensing the channel state in real time, parameters of the auxiliary pilot frequency are dynamically adjusted, and a synchronization function is fused, so that the demodulation performance and the resource utilization rate are improved.

The embodiment of the invention provides a multi-user TA joint estimation and channel compensation method, and the method comprises the steps: carrying out the least square estimation through employing a frequency domain signal of a demodulation reference signal of a receiving end and a local demodulation reference signal sequence, and obtaining a channel estimation result of the demodulation reference signal; based on the orthogonal sequence of the demodulation reference signals between the users, grouping the demodulation reference signal sequences to obtain grouped demodulation reference signals; performing frequency domain time error advance estimation on the grouped demodulation reference signals to obtain estimated values of time error advance of different users; a joint compensation sequence is generated based on an estimated value of a time error advance, a channel estimation result is compensated, joint estimation and channel compensation are performed on multi-user TA in a frequency domain by combining spatial domain user grouping, and TA error joint suppression between users is realized while complexity is reduced, so that the system throughput is improved.

The invention provides a communication method and a communication device, and relates to the technical field of communication. According to the invention, multiplexing of resources occupied by multiple channels such as PDSCH and PUSCH can be realized, so that the system capacity is improved. The method comprises the following steps: receiving first information from network equipment, wherein the first information is used for indicating a first orthogonal sequence; on the first time-frequency domain resource, using a first orthogonal sequence to receive first data sent by the network device through a first channel, and / or, sending second data to the network device through a second channel; wherein the first channel comprises a physical downlink shared channel (PDSCH) and / or a non-physical downlink shared channel (NPDSCH), and the second channel comprises one or more of the following: a physical uplink shared channel (PUSCH), a non-physical uplink shared channel (NPUSCH), a physical random access channel (PRACH) or a non-physical random access channel (NPRACH).

The present application discloses a method and apparatus related to PUSCH transmission used in a wireless communication node. The communication node receives the first signaling; the communication node sends a first signal, the transmission of the first signal depends on the first signaling; wherein whether the orthogonal sequence of the PUSCH is applied to the first signal is related to the number of the SRS resource sets corresponding to the first signal.

A method and apparatus for wireless communication are provided to enhance uplink capacity and coverage. The method comprises the following steps: a first terminal device performs repeated transmission of first uplink data according to a first sequence; wherein the first sequence is one of a plurality of mutually orthogonal sequences, the plurality of sequences are used for multiplexing a first resource by a plurality of terminal devices, the first resource is used for repeatedly transmitting a plurality of uplink data by the plurality of terminal devices, and the plurality of terminal devices comprise the first terminal device. The plurality of pieces of uplink data comprise the first uplink data.

The invention discloses a method and an apparatus related to a PUSCH in a node used for wireless communication. The first receiver receives a first PDCCH (Physical Downlink Control Channel), the first PDCCH ends at a first symbol, and the first PDCCH schedules a first PUSCH (Physical Uplink Shared Channel) The first transmitter is used for transmitting the first PUSCH; wherein whether the first PUSCH can overlap with a target transmission opportunity in a time domain is related to whether an end of the first symbol is earlier than a start of a second symbol by at least N symbols; the target transmission opportunity is the transmission opportunity of the configuration granted PUSCH, the N depends on SCS configuration, the second symbol depends on first configuration, and the first configuration is the configuration of an orthogonal sequence of the PUSCH.

When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement / negative acknowledgement (ACK / NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.

The embodiment of the invention provides a communication method and a related device, and the method comprises the steps: receiving first information which comprises a bias value; second information is sent, the second information is subjected to inter-symbol OCC expansion of an orthogonal sequence, and the orthogonal sequence starts to be used from the OCC element corresponding to the offset value. By adopting the embodiment of the invention, when different terminal devices are configured with the same PRB, the OFDM symbols at the same position of each terminal device realize inter-symbol OCC expansion through the OCC elements with the same serial number, and each OFDM symbol of each terminal device realizes inter-symbol OCC expansion through the same OCC element, so that the success rate of receiving information at a network side is improved.

A method and apparatus for UCI multiplexing in a wireless communication node are disclosed. The communication node receives a first signaling, a first PUCCH is a PUCCH for a first UCI, the first PUCCH depends on the first signaling; the communication node transmits a plurality of PUSCHs, the plurality of PUSCHs overlap with the first PUCCH; wherein the first UCI is multiplexed on one PUSCH of the plurality of PUSCHs, the PUSCH of the plurality of PUSCHs for multiplexing the first UCI depends on whether a first type of orthogonal sequence is applied to the plurality of PUSCHs, the first type of orthogonal sequence is an orthogonal sequence of a PUSCH.

A method and apparatus for satellite communication in a non-terrestrial network are provided. The method comprises: a first terminal device receiving first information sent by a network device, the first information being used for determining a first sequence; the first terminal device determines an uplink transmission resource in a first resource block according to the first sequence; wherein the first sequence is a sequence corresponding to the first terminal device in a first sequence set, the first sequence set comprises a plurality of mutually orthogonal sequences, the first terminal device is one of a plurality of terminal devices, and the plurality of terminal devices multiplex the first resource block based on the plurality of sequences.

Embodiments of the present application provide a communication method and a related apparatus. The method comprises: receiving first information, the first information comprising a bias value; and sending second information, the second information being spread via an inter-symbol OCC of an orthogonal sequence, and the orthogonal sequence being used starting from an OCC element corresponding to the bias value. By using the embodiments of the present application, when different terminal devices are configured with the same PRB, OFDM symbols at the same positions of each terminal device achieve inter-symbol OCC spreading by means of OCC elements of the same index. Each OFDM symbol of each terminal device achieves inter-symbol OCC spreading by means of the same OCC elements, thereby increasing the success rate of information reception at the network side.

Aspects of the present disclosure include methods, apparatuses, and computer readable media for transmitting, to at least one reader, an orthogonal sequence in response to receiving a command indicating the group of ambient IoT devices to respond, receiving, from the at least one reader, an indication indicating a reception of the orthogonal sequence by the at least one reader, and transmitting, to the at least one reader, at least a portion of the device identifier in response to receiving the indication.

The invention discloses a high-speed modulation and demodulation method for a dynamic underwater acoustic network, and the method also employs an orthogonal sequence multiplexing modulation and demodulation technology based on a Zadoff-Chu (ZC) sequence, and combines the setting of a cyclic displacement interval to construct a plurality of sub-channels, thereby achieving the multi-path separation, and reducing the average transmitting power of a system at the same time. In the aspect of multi-user access, interference among multiple users is regarded as additive white noise by using quasi-orthogonal characteristics among different ZC root sequences, so that uncoordinated random concurrent access is supported; differential modulation between sub-channels in a symbol is adopted, and the requirement for phase tracking is lowered; and a receiving end converts multipath amplitude information into soft decision information through cyclic correlation spectrum calculation and multipath diversity technologies, so that the calculation complexity is reduced, and the throughput of the time-varying underwater acoustic system is improved while the multi-user access efficiency is improved.

The present disclosure relates to methods and devices (including apparatuses, such as UEs and / or base stations) for wireless communication. The apparatus can select one or more rows or one or more columns of a DFT matrix, the one or more rows being even rows in the DFT matrix and the one or more columns being even columns in the DFT matrix. The apparatus can also determine an orthogonal matrix based on the one or more rows or the one or more columns of the DFT matrix, the orthogonal matrix having a size of (MxN)x(MxN) with MxN rows and MxN columns. Additionally, the apparatus can determine a codebook based on the orthogonal matrix, the codebook including a plurality of codepoints. The apparatus can also transmit at least one signal including a first codepoint of the plurality of codepoints in the codebook in an uplink resource.

A communication method and a related apparatus. In the method, a first communication apparatus may send, by means of some or all resources in a first PRACH resource set, a first signal used for random access (i.e., the first signal may be referred to as a random access signal). The first signal repeatedly transmitted N times is obtained by processing a preamble sequence on the basis of a first orthogonal sequence among M orthogonal sequences, and M is greater than 1. In this way, repeatedly transmitted random access signals sent by different first communication apparatuses can be obtained by processing on the basis of M different orthogonal sequences. Accordingly, after receiving the different random access signals, a receiver of the random access signals can distinguish between the different random access signals on the basis of the M orthogonal sequences. Therefore, by means of orthogonal sequence-based processing of random access signals, different communication apparatuses can reuse the same PRACH resource to achieve random access, so that multi-user multiplexing is supported, thereby increasing access capacity.

The application provides a method and device for information transmission, the method comprising: a terminal device sending a sequence belonging to a first sequence set to a network device, the sequences in the first sequence set being related to each other; and the network device performing sequence detection on a received signal according to the first sequence set to obtain at least one sequence sent by at least one terminal device. Meanwhile, the application also provides a sequence generation method for sequence modulation and an example of a first sequence set comprising sequences of different lengths, so that more sequences can be provided under the condition of a certain length, thereby supporting more users. The method and device of the application can realize access and information transmission of a large number of users under the premise of ensuring detection effect by simultaneously performing user detection and sequence detection by using non-orthogonal sequences with less correlation in the field of signal processing.

Provided are a method and an apparatus for satellite communication in a non-terrestrial network. One example method includes: receiving, by a first terminal device, first information from a network device in a non-terrestrial network; determining, by the first terminal device, a first sequence based on the first information; and determining, by the first terminal device, an uplink transmission resource on a first resource block based on the first sequence; wherein the first sequence is a sequence corresponding to the first terminal device in a first sequence set, the first sequence set comprises a plurality of mutually orthogonal sequences, the first terminal device is one of a plurality of terminal devices, and the plurality of terminal devices multiplex the first resource block with a plurality of slots based on the plurality of sequences.

This terminal is provided with: a control circuit that determines an orthogonal sequence having a relationship in which, in a frequency domain, at least a portion of an output result obtained by applying the orthogonal sequence to a signal before discrete Fourier transform (DFT) and applying DFT to the signal is mapped to a frequency resource used in a demodulation reference signal; and a transmission circuit that transmits the signal to which the orthogonal sequence is applied.

The application discloses a method and apparatus related to UCI multiplexing used in a wireless communication node. A communication node receives a first signaling, the first PUCCH being a PUCCH for a first UCI, the first PUCCH depending on the first signaling; wherein the first PUCCH is overlapped with one air interface resource sub-pool in a first air interface resource pool, the first air interface resource pool comprises a plurality of air interface resource sub-pools, and the plurality of air interface resource sub-pools in the first air interface resource pool are respectively in a plurality of time slots. Each air interface resource sub-pool in the first air interface resource pool comprises at least part of a first PUSCH, the first air interface resource pool depends on a first configuration, and the first configuration is a configuration of an orthogonal sequence of the PUSCH; the multiplexing relationship between the first UCI and the first air interface resource pool depends on the type of the first PUSCH, and the first PUSCH is a dynamically scheduled PUSCH or a configured and granted PUSCH.

The embodiment of the invention provides a communication method and a related device, and the method comprises the steps: receiving first information which is used for determining the priorities of at least two orthogonal cover code (OCC) modes; receiving second information, wherein the second information is used for determining at least one orthogonal sequence length; and sending first data, wherein the first data is expanded through at least one OCC mode. By adopting the embodiment of the invention, the OCC mode for data expansion can be determined based on the priority, and if at least two OCC modes are combined for data expansion, the number of reusable terminal equipment and the overall capacity of a communication system can be improved.

The present application discloses a method and apparatus related to PUSCH transmission used in a wireless communication node. A communication node receives a first signaling, the first signaling indicating a first type of resource, the first type of resource being not used for target uplink transmission, and the target uplink transmission comprising PUSCH transmission; a communication node sends a signal in a first resource sub-pool, the first resource sub-pool being a part of a first resource pool, the first resource pool being a PUSCH opportunity; wherein the first resource sub-pool depends on a first configuration and the indication of the first signaling, and the first configuration is a configuration of an orthogonal sequence of the PUSCH.

The application discloses a method and apparatus related to UCI multiplexing for use in a wireless communication node. A communication node receives a target signaling on which a first PUCCH depends, the first PUCCH being a PUCCH for a first UCI; the communication node executes transmission in a first PUSCH resource pool group, and the first UCI is multiplexed into the first PUSCH resource pool group; wherein the first PUCCH is overlapped with one PUSCH resource pool in the first PUSCH resource pool group, the first PUSCH resource pool group depends on target configuration, and the target configuration is configuration of a PUSCH orthogonal sequence; the first UCI is whether the first UCI is multiplexed into each PUSCH resource pool in the first PUSCH resource pool group or whether a first symbol depending on the first resource pool in only a part of the PUSCH resource pools satisfies a first condition set, and the first condition set comprises a timeline condition related to a PDCCH (Physical Downlink Control Channel) providing the target signaling; the first resource pool depends on at least part of the first PUSCH resource pool group and the first PUCCH.

Methods and apparatus related to a PUSCH orthogonal sequence for use in a wireless communication node are disclosed. A communication node receives a first information block, the first information block indicating N, the N being a positive integer greater than 1; the communication node sends a first signal, the time domain resource allocation of the first signal depends on the N; wherein whether the PUSCH orthogonal sequence is applied to the first signal is related to both the N and a first orthogonal sequence length, and the first orthogonal sequence length is the length of the PUSCH orthogonal sequence.

Provided are a method and device for satellite communication in a non-terrestrial network. The method comprises: a first terminal device receiving first information transmitted by a network device, the first information being used to determine a first sequence; and the first terminal device determining resources for uplink transmission in a first resource block according to the first sequence; wherein the first sequence is a sequence corresponding to the first terminal device in a first sequence set, the first sequence set comprises a plurality of mutually orthogonal sequences, the first terminal device is one of a plurality of terminal devices, and the plurality of terminal devices multiplex the first resource block based on the plurality of sequences.

A communication method and a related device. In the method, after receiving first information indicating at least one first resource, a first communication apparatus can send, on the basis of the first resource, first uplink data that is actually repeatedly transmitted N times, and the first uplink data of part or all of the N times of actual repeated transmissions is obtained by means of a first orthogonal sequence. In this way, repeatedly transmitted uplink data sent by different first communication apparatuses can be obtained by means of performing processing on the basis of different orthogonal sequences; correspondingly, after receiving different uplink data, a second communication apparatus can differentiate the uplink data sent by the different first communication apparatuses on the basis of the different orthogonal sequences. Therefore, the method for processing uplink data by means of orthogonal sequences makes it possible for different first communication apparatuses to reuse the same resources to realize data transmission, so as to support multi-user multiplexing, and thus the capacity of a system can be improved.

A first communication device configured to transmit data to a second communication device, comprising circuitry configured to: generate a second number of mutually orthogonal sequences; generate a third number of one or more spatial streams, each spatial stream carrying payload data; divide each of a first number of training symbols into a fourth number of sets of tones, each training symbol spanning a plurality of tones; divide each orthogonal sequence into a fourth number of portions; generate a training field by mapping elements of a corresponding portion of an orthogonal sequence onto a set of tones of a training symbol; and arrange the training field before and / or between the payload data of the spatial streams to enable channel estimation by the second communication device.

The embodiment of the invention provides a communication method and a related device, and the method comprises the steps: receiving first information which is used for determining an orthogonal sequence; and sending second information, the second information comprising at least two of first data, second data and third data, the first data being subjected to inter-slot orthogonal cover code (OCC) extension of the orthogonal sequence, the second data being subjected to inter-symbol OCC extension of the orthogonal sequence, and the third data being subjected to intra-symbol OCC extension of the orthogonal sequence. According to the embodiment of the invention, the transmission data is expanded through at least two OCC expansion modes, so that the capacity of a communication system and the flexibility and speed of data transmission can be improved.

The present invention relates to a parallel transceiver and demodulator method for ultrasonic tomography. Assuming that a sensor array is composed of N ultrasonic sensors, the sequence length of an excitation signal is L, the ultrasonic sensor that transmits the signal is called a transmitting end, and the ultrasonic sensor that receives the signal is called a receiving end. The method comprises the following steps: using a Kasami sequence to generate N mutually orthogonal pseudo-random orthogonal sequences with a length of L; modulating a carrier signal; generating an excitation signal based on the modulated and filtered signal, simultaneously stimulating all transmitting ends, and each receiving end receives a superposition of sound source signals emitted by all other N-1 transmitting ends and local noise at the receiving end; demodulating the transit time; demodulating the signal attenuation; and calculating the average attenuation coefficient of the ultrasonic wave along the propagation path using the extracted attenuation spectrum based on the principle of ultrasonic tomography to achieve image reconstruction of the measured field.