11961results about "Synchronisation arrangement" patented technology

This application provides a communication method and apparatus for reducing energy consumption while maintaining normal communication of a network apparatus. In the method, a terminal apparatus obtains operation mode information of a network apparatus, where an operation mode of the network apparatus includes one of a first operation mode or a second operation mode, and the first operation mode and the second operation mode belong to a same radio access technology. In the first operation mode, a transmission resource for a synchronization signal of the network apparatus has lower overheads or supports fewer functions. Alternatively, an access procedure in the first operation mode is different from an access procedure in the second operation mode. Based on the operation mode information, the terminal apparatus performs communication with the network apparatus by using the configuration information in one of the first operation mode and the second operation mode.

A wireless device receives a configuration for a layer 1 or layer 2 triggered mobility (LTM) of the wireless device and / or an early timing advance (ETA) acquisition of the wireless device. The wireless device transmits, to a base station, a report indicating an elapsed time between a first event associated with the ETA and / or the LTM and a second event associated with the ETA and / or the LTM.

A wireless device receives, from a base station, an indication that a first candidate cell of a plurality of candidate cells for a layer 1 / layer 2 triggered mobility (LTM) and a second candidate cell of the plurality of candidate cells are associated with a same timing advance value. The wireless device acquires a timing advance for the first candidate cell. The wireless device executes an LTM cell switch procedure for the second candidate cell as a target cell for the LTM. The wireless device transmits, via the second candidate cell, an uplink signal using a timing advance value associated with the first candidate cell.

A wireless device receives, from a base station, a radio resource control (RRC) reconfiguration message comprising a layer 1 / layer 2 triggered mobility (LTM) configuration. The LTM configuration comprises an LTM candidate configuration of a candidate cell and a value of a time alignment timer for determining whether a timing advance (TA) value of the candidate cell is valid. The wireless device receives, from the base station, a downlink control information (DCI) indicating the candidate cell and to transmit a random access preamble for acquiring the TA value of the candidate cell. Based on the DCI, the wireless device transmits, via the candidate cell, the random access preamble for acquiring the TA value of the candidate cell. The wireless device receives, from the base station, a medium access control (MAC) control element (CE) indicating an identifier of the LTM candidate configuration of the candidate cell and the TA value.

The invention provides an inertial navigation attitude resolving method and device based on sensor fusion. The method comprises the following steps: carrying out multi-clock domain synchronous calibration processing on a double-antenna GNSS system, an IMU inertial measurement unit and an antenna servo system in a vehicle-mounted communication-in-motion system; according to the time synchronization reference, carrying out quality evaluation and weight distribution processing on the GNSS satellite signal under the satellite communication in motion antenna pointing constraint; and carrying out multi-sensor fusion resolving processing on the inertial attitude of the vehicle body according to the time synchronization reference and the GNSS observation data weight distribution result. According to the method, millisecond-level time synchronization is realized by establishing a robust extended Kalman filtering model of a multi-dimensional extended state vector, GNSS signal quality is optimized by adopting an adaptive weight distribution strategy of antenna pointing constraint, and attitude fusion precision is enhanced by utilizing high-precision angle feedback of an antenna servo system. The problem that a traditional attitude resolving method in a vehicle-mounted communication-in-motion system is not high in precision is solved.

The invention discloses a low-altitude unmanned aerial vehicle trajectory tracking and monitoring method based on a 5G-A communication sensing integrated base station, and relates to the technical field of low-altitude traffic management and communication sensing fusion, and the method comprises the steps: firstly collecting multi-source data such as a communication sensing fusion signal, environment interference and unmanned aerial vehicle attributes, and carrying out the alignment and packaging of a unified timestamp and a coordinate system into a synchronous data frame; then, deep fusion and anti-interference processing are carried out on the data frames, noise is filtered out, and pure fusion data is generated; and furthermore, real-time track calculation and motion trend prediction are carried out on pure data by utilizing multi-base-station cooperative calculation and prediction. Based on this, through a multi-target feature recognition and clustering separation mechanism, independent individual trajectories are accurately stripped from a complex mixed data stream, and compliance verification and anomaly judgment are performed on the trajectories in combination with an airspace rule base. In this way, the problems of signal interference and multi-target aliasing in a complex environment can be effectively solved, and therefore high-precision global tracking of the low-altitude unmanned aerial vehicle and real-time monitoring of abnormal behaviors are achieved.

The invention discloses a method for improving transformer area crosstalk of HPLC (High Performance Liquid Chromatography) and micropower wireless dual-mode communication, which comprises the following steps of: S1, electrifying an acquisition terminal equipment node, and aligning signal acquisition time windows of two communication modes; s2, combining the obtained dual-mode signal parameters with a preset transformer area topology database to generate feature vectors of multi-dimensional features; s3, training to generate a random forest model, inputting feature vectors of multi-dimensional features, dynamically calculating the affiliation weight value of the transformer area, and carrying out nonlinear weighted calculation on the feature vectors; and S4, on the basis of weight comparison and transformer area boundary node processing, correcting measurement errors by combining the transformer area attribution weight value with a preset impedance shielding compensation algorithm, generating a unique transformer area identifier, locking a networking relationship, and executing transformer area attribution judgment. According to the method, the wide coverage advantage of HPLC is reserved, meanwhile, the space attenuation characteristic of wireless communication is used for achieving accurate recognition of the transformer area boundary, and the installation and acquisition stability of the use and acquisition terminal equipment can be improved.

Techniques described herein include solutions for configuring and using parallel measurement gaps with the same gap type for both synchronization signal block (SSB) based and channel state information reference signal (CSI-RS) based measurements associated to the same frequency layer. A User Equipment (UE) may indicate its capability to support parallel measurement gaps to a non-terrestrial base station. The capability may be indicated individually for SSB based and CSI-RS based measurements, or in a combined format for both SSB based and CSI-RS based measurements. The UE receives a measurement gap configuration to configure the parallel measurement gaps and performs measurements accordingly. The measurement gaps for SSB based measurements and the measurement gaps for CSI-RS based measurements may be considered as associated to the same or different frequency layers depending on various conditions.

The invention relates to the technical field of unmanned aerial vehicle communication, and discloses a dynamic spectrum frequency hopping communication method and device for a target aircraft and a ground station, and the method comprises the steps: collecting state information; evaluating a signal quality indicator based on the power data; based on the total spectral range and the signal quality index, segmenting the total spectral range into N sub-bands to obtain a spectrum allocation result; based on the task priority and the communication quality index, carrying out main target machine election; each target machine sends an orthogonal detection sequence in a corresponding time slot to obtain channel state information; converting the channel state information into a frequency hopping key; generating a frequency hopping sequence based on the frequency hopping key; according to the invention, an adaptive frequency hopping technology based on a channel state is adopted, the channel quality is monitored in real time, and a dynamic frequency hopping sequence is generated, so that an interference frequency band is effectively avoided; through a time division multiplexing channel detection mechanism, signal overlapping is fundamentally avoided, and continuous and stable operation in a complex dynamic environment is ensured.

The invention discloses a time-frequency synchronization tracking and judging method based on GFSK (Gaussian Frequency Shift Keying). The method comprises the following steps: S1, positioning the initial position of a synchronization word by detecting a lead code; s2, extracting a fixed synchronization word, completing frame synchronization based on correlation matching, and positioning a starting point of an effective data segment; s3, a range cycle counter collects a central sampling point and two adjacent sampling points to form a candidate sampling point sequence; s4, dynamically and finely adjusting the range cycle counter to form a time sequence calibration sampling point sequence; s5, performing phase difference calculation on the time sequence calibration sampling point sequence, estimating continuous frequency offset and generating a compensation value; s6, applying the compensation value to construct a decision feedback equalizer with delay front and back terms; s7, performing interference suppression on the compensation sampling point sequence by using a decision feedback equalizer with delay front and back items, and outputting a soft decision value; and S8, executing three times of judgment, constructing a sliding reference sequence, and outputting a final bit judgment result. According to the method, the problem of poor GFSK demodulation robustness under Doppler disturbance is solved.

A method performed by a terminal in a wireless communication system according to an embodiment disclosed herein comprises the steps of: receiving configuration information related to a plurality of control resource sets (CORESETs) from a base station; receiving downlink control information (DCI) from the base station; transmitting a random access preamble to the base station; and receiving a random access response (RAR) from the base station. The random access preamble is transmitted on the basis of an SSB index, and the SSB index is related to a first CORESET pool index or a second CORESET pool index.

A method can include transmitting, by a wireless device to a base station, via a first cell of the wireless device, an uplink signal based on determining a radio link failure of a second cell, the second cell being configured for early timing advance (TA) acquisition. The transmitting the uplink signal can be at least one of: based on the second cell being configured for early timing advance acquisition of the wireless device; or after receiving, by the wireless device, an indication to at least one of acquire a TA value of the second cell; start to acquire the TA value of the second cell; or transmit, by the wireless device via the second cell, a reference signal.

The invention provides a communication method, device and system, and is applied to the technical field of communication. According to the communication method provided by the invention, the network side can be triggered in time to adjust the time advance for the terminal equipment when the GNSS information of the terminal equipment is invalid. The communication method comprises the following steps: the terminal equipment sends a first message to access network equipment based on GNSS information before failure under the condition that the GNSS information of the terminal equipment is determined to be invalid. And the terminal equipment receives first indication information from the access network equipment, the first indication information is used for indicating a first parameter, and the first parameter is used for determining the time advance of the terminal equipment for sending uplink data next time.

The invention relates to the technical field of the Internet of Things, and discloses a wireless sensor network environment monitoring system and a safety protection method based on the Internet of Things, and the system method comprises the steps: collecting sensing node environment data to generate a multi-dimensional feature matrix, and constructing a safety protection strategy set; setting threat parameter types, and establishing a security threat association model by using historical data; extracting real-time attack features and flow parameters, and generating a dynamic protection instruction set and an optimization scheme in combination with the model; and reconstructing a network node control mechanism to generate a target protection scheme, and dynamically and synchronously calibrating an instruction time sequence. The system comprises a node data acquisition module, a security policy generation module, a threat parameter analysis module, a threat modeling module, a risk assessment module, a protection mechanism reconstruction module and a time sequence synchronization module. Through multi-dimensional feature analysis, dynamic threat modeling, adaptive risk assessment and time sequence encryption synchronization, the security protection capability of the wireless sensor network in a complex environment is improved, and the method is suitable for security protection requirements in the field of Internet of Things environment monitoring.

Disclosed are systems and techniques for performing wireless communication. For example, a method for wireless communications at a network entity (e.g., a base station or portion thereof) may include selecting a special cell (SpCell) from one or more candidate cells for communicating with a user equipment (UE) and transmitting an indication of the SpCell to the UE. In another example, a method for wireless communications at a user equipment (UE) may include receiving an indication of a special cell (SpCell) from a network entity and, in response to the indication, communicating with the SpCell.

A method of audio processing combining WiFi and BLE technologies includes: obtaining target audio data including multi-channel information; establishing connections among audio devices corresponding to multiple rooms through WiFi and BLE Auracast™ protocols; dynamically configuring distribution paths according to intelligent distance detection results, and obtaining a configured audio distribution network; adjusting, using a synchronization algorithm in the BLE Auracast™ protocol, a timing sequence of the target audio data, and obtaining synchronized audio data; and transmitting, according to the configured audio distribution network, the synchronized audio data via WiFi or the BLE Auracast™ protocol to each audio device for playback.

The invention discloses a time synchronization method suitable for a satellite communication system, and the method comprises the steps: analyzing a forward broadcast signal, and obtaining the reference time of a network clock; constructing a geometric prediction handle based on satellite orbit data, and predicting one-way propagation time delay between a terminal and a satellite by using the geometric prediction handle; estimating the processing delay of the terminal according to the symbol rate and the equipment working condition of the terminal and the delay calibration data; fusing the network clock reference time with the processing delay estimate to synthesize a terminal local time; and the sending time of the return link is calculated based on the local time and the propagation delay prediction. According to the method, the synchronization precision can be improved to a microsecond level, the convergence speed in a dynamic scene is accelerated, adaptive compression of the guard interval is supported, and the stability and spectrum efficiency of a satellite communication system are effectively improved.

The present disclosure relates to a wireless communication system and particularly to a method and an apparatus therefor, the method comprising the steps of: transmitting an RA preamble on one RO among a plurality of ROs, wherein, on ROs in a first RO group among a plurality of RO groups, a plurality of RA preambles having the same index are transmitted; receiving, on the basis of having transmitted the plurality of RA preambles, RAR by monitoring a plurality of PDCCH search spaces linked to the first RO group; and transmitting an uplink signal corresponding to the RAR, wherein a time resource of each PDCCH search space linked to the first RO group is linked to each RO of the first RO group.

Techniques are described herein for handling multi-modal synchronization. An example method can include processing first information relating to multi-modal synchronization between a first quality of service (QoS) flow and a second QoS flow. The method can further include processing second information indicating whether a packet data unit (PDU) discard is allowed based on a failure of the multi-modal synchronization. The method can further include generating, based on the first information and the second information, third information to configure a PDU discard behavior. The method can further include outputting the third information for transmission to a user equipment (UE).

Disclosed are a method and apparatus for configuring and transmitting a synchronization signal for beam tracking and management in sidelink communication. The method for a first UE comprises the steps of: transmitting one or more BM-S-SSBs to a second UE; and on the basis of the one or more BM-S-SSBs, receiving a measured BSI from the second UE, wherein each of the one or more BM-S-SSBs includes an S-PSS and an S-SSS without a PSBCH.

The invention discloses a multi-terminal cooperative processing method and system, and relates to the field of terminal communication, and the method comprises the steps: responding to a trigger signal of an event, determining event information, and initiating a cooperative processing request to at least one second terminal in a communication range; determining a target terminal responding to the cooperative processing request in the second terminal, and constructing a temporary cooperative group including the target terminal; acquiring shared event associated data in the temporary collaborative group, and determining a consensus event description based on the event associated data and / or the event information; a dominant reporting terminal is determined in the temporary cooperation group, and the dominant reporting terminal is used for packaging the consensus event description into a data packet and sending the data packet to a remote management platform; and receiving a response confirmation message returned by the remote management platform, and broadcasting the unique event ID and the processing state in the response confirmation message to all terminals in the temporary collaborative group. The computing resource consumption of the remote management platform can be effectively reduced.

A wireless transmit / receive unit (WTRU) may receive a radio resource control (RRC) message comprising configuration information. The configuration information may include one or more preconfigured candidate cell configurations. Each of the preconfigured candidate cell configurations may include a special cell (SpCell) configuration, a secondary cell (SCell) configurations, and / or a candidate cell index. The WTRU may receive a medium access control (MAC) control element (CE). The MAC CE may indicate to apply a first preconfigured candidate cell configuration of the one or more preconfigured candidate cell configurations and an activation state for each SCell in the first preconfigured candidate cell configuration. The WTRU may initiate a handover to a SpCell in the first preconfigured candidate cell configuration based on the indication in the MAC CE. The WTRU may transmit data to the SCells activated by the MAC CE.

A method by which a first device performs wireless communication and a device supporting same are provided. The method may comprise the steps of: acquiring information related to a resource for a sidelink-synchronization signal block (S-SSB); acquiring information about a first time domain for a first cyclic prefix extension (CPE) related to S-SSB transmission; performing the first CPE during the first time domain before the S-SSB transmission; and performing the S-SSB transmission on the basis of the resource.

The invention relates to the technical field of multi-agent cooperative control, and discloses a multi-agent cooperative operation control method and system based on a wireless deterministic network, and the system comprises a time synchronization calibration module which is used for collecting the initial timestamps and network transmission delay data of all agent nodes, setting synchronization protocol attributes for calibration, and transmitting the initial timestamps and the network transmission delay data to a wireless deterministic network; establishing a collaborative operation network model; the task instruction distribution module associates the job task demand with the agent capability data, and generates a collaborative job instruction set through task decomposition; the path conflict detection module initializes parameters based on a network model and optimizes a path to obtain a collaborative optimization path; the collaborative state sensing module obtains real-time state data and analyzes and determines control strategy parameters; and the control parameter optimization module performs simulation verification and feeds back optimization parameters. According to the system, the precision, efficiency and reliability of multi-agent collaborative operation are improved, and the system is suitable for various complex operation scenes.

Devices in a wireless communication system perform methods related to a GNSS position fix procedure. A user equipment connected to a network entity via a non-terrestrial network receives a measurement gap configuration and an indication of a remaining-validity-duration-update triggering condition. The UE conducts a GNSS position fix procedure for estimating a UE position during a measurement gap according to the measurement gap configuration. When the GNSS position fix procedure is successfully completed, the UE transmits a remaining GNSS validity duration. When the remaining-validity-duration-update triggering condition is met, the UE transmits an updated remaining GNSS validity duration.

A method may include a wireless device receiving resource control (RRC) messages comprising configuration parameters of a layer 1 / layer 2 triggered mobility (LTM) and a configured grant Type 1 for one or more physical uplink shared channel (PUSCH) transmissions of a random access channel (RACH)-less LTM cell switch. The method may also include receiving a medium access control (MAC) control element (CE) triggering an LTM cell switch procedure for the RACH-less LTM cell switch. The method may also include determining not to initiate a random access (RA) procedure based on the RACH-less LTM cell switch being ongoing. The method may also include, based on the RACH-less LTM cell switch being ongoing, not initiating the RA procedure. The method may also include transmitting, using the configured grant Type 1 and for the RACH-less LTM cell switch, a first PUSCH transmission of the one or more PUSCH transmissions.

The invention discloses a wireless communication management method and system based on Bluetooth and WIFI synchronization, and belongs to the technical field of Bluetooth and WIFI synchronous communication, and the method comprises the steps: carrying out Bluetooth and WIFI wireless communication environment interference detection, analyzing an environment communication conflict score, carrying out mutual exclusion strategy setting, and analyzing an internal communication bottleneck observation correction index. And determining a wireless communication internal conflict level, setting an internal conflict adjustment strategy, and triggering a consistency detection and repair process when the control center receives a conflict abnormal signal. According to the method, the interference condition and the internal bottleneck state of Bluetooth and WIFI in a complex environment can be comprehensively sensed, the communication conflict level is dynamically evaluated, a mutual exclusion strategy and an adjustment strategy are intelligently set, a consistency repair mechanism is quickly triggered in an abnormal condition, the problems of broadcast interruption, connection failure, data blockage and the like are effectively reduced, and the service life of the Bluetooth and WIFI is prolonged. And the stability and coordination of wireless communication and the overall operation efficiency of the system are improved.

The invention discloses a self-adaptive sound effect management method and system with a scene analysis module, and relates to the field of self-adaptive sound effect management, and the method comprises the following steps: S1, collecting environmental acoustic characteristics and user behavior data in real time through the scene analysis module; s2, dynamically extracting user hearing preference parameters and scene classification labels; s3, constructing a virtual audition sweet zone matched with the physical space; and S4, dynamically adjusting the phase delay and the energy distribution proportion of each frequency band, and generating an optimal loudness equalization curve meeting the multi-scene constraint. According to the method, adaptive matching of sound field characteristics is realized in a complex dynamic scene through a multi-level perception-optimization closed-loop architecture, acoustic feature extraction and physical space modeling are deeply fused, the technical boundary of traditional pure signal processing is broken through, and the problem of multi-target conflict is solved based on cross-modal collaborative learning and a global optimization algorithm.

Systems, methods, and instrumentalities are described herein that may be associated with frame-based equipment (FBE) channel access in sidelink (SL) unlicensed. A wireless transmit / receive unit (WTRU) may receive configuration information that indicates a channel busy ratio (CBR) threshold. The WTRU may determine a CBR value associated with a channel in a listen before talk (LBT) band. The WTRU may compare the CBR value to the CBR threshold. The WTRU may determine a channel access parameter based on the comparison of the CBR value to the CBR threshold. The WTRU may change the channel access parameter.

The invention discloses a power and environment data monitoring method based on NB-IOT communication, and belongs to the technical field of Internet of Things equipment monitoring. The method comprises the following steps: deploying and integrating multiple types of sensors and an NB-IOT module at a monitoring terminal; establishing a connection between the terminal and the management system through NB-IOT, and distributing a unique device identifier and a platform access address; the terminal receives the SFN signal of the base station, converts the SFN signal into a UTC timestamp, collects moving ring data, adds the timestamp and transmits the moving ring data to the platform; the platform aligns the multi-source data with a timestamp, and establishes space-time association in combination with equipment space coordinates; and monitoring the equipment state based on the spatio-temporal data sequence, triggering an offline / online alarm event through a double-threshold strategy, and pushing the event to a management terminal. According to the method, the problems of multi-source data space-time misalignment and high equipment state misjudgment rate in existing dynamic environment monitoring are solved, and the fault positioning precision and the operation and maintenance response efficiency are remarkably improved by adopting a base station time service synchronization and space-time fusion analysis technology.