1374results about "Transmission format adaptation" patented technology

The present invention relates to the technical field of data transmission. Disclosed is an application-driven three-dimensional spatial data transmission method. The method comprises: determining system key performance indicators (KPIs) by means of qualitative and quantitative analysis; constructing an AI-driven adaptive three-dimensional data transmission mechanism, and dynamically adjusting a transmission strategy on the basis of a real-time network state, a device capability, an application scenario and the KPIs; developing an adaptive compression algorithm set oriented to three-dimensional data, so as to meet differentiated compression requirements of different application scenarios; performing loop execution of a test, and adjusting and optimizing the data transmission mechanism and the compression algorithm set on the basis of a test feedback result and the real-time network state; and deploying an optimized transmission method to a production environment, and collecting field data to optimize the system performance and verify the achievement of the KPIs. By constructing a qualitative and quantitative analysis framework based on machine learning, the present invention quantifies differentiated transmission requirements of different application scenarios and formulates transmission strategies meeting the scenario requirements.

The invention relates to the technical field of vehicle network control, in particular to an efficient vehicle network control system and method based on CAN-FD, and the system comprises a data transmission optimization module, a bandwidth management module, a signal scheduling control module, an encryption security control module and an anomaly detection module. In the invention, the bit rate of a data frame, the length of a data packet and the proportion of filling bytes are optimized, the transmission efficiency is improved, the bandwidth occupied by invalid data is reduced, a priority screening mechanism is called, the stable transmission of high-priority signals is ensured, the bandwidth allocation is adjusted based on the flow state and node frequency monitoring, the burst flow congestion is relieved, and the resource allocation is balanced; in combination with arbitration priority and bus conflict state, non-emergency signal priority is optimized, key data blocking risk is reduced, encryption and integrity verification are adopted, data security is ensured, tampering and leakage are prevented, data abnormity score and detection are introduced, abnormal data are screened, identification capability is improved, and network potential safety hazard is reduced.

The invention relates to the technical field of wireless high-definition audio and video transmission, and discloses a plug-and-play wireless high-definition audio and video transmission method and system.The method comprises the steps that foreground space texture features and audio and voice segments are obtained, and an initial feature set containing space and semantic features is obtained through semantic correlation analysis; a unified representation vector is output through multi-modal feature fusion, and a dynamic importance score is obtained by determining time sequence consistency, calculating an importance weight and performing normalization; and when the score exceeds a threshold value, segmenting the video frame in real time to determine an attention focus area and optimize a boundary, thereby generating an attention weight matrix, preferentially allocating bandwidth and forming a partition differentiation compression result. And in combination with a network bandwidth state, protection is enhanced for a key stream, the priority and the bit rate are dynamically adjusted, and high-quality audios and videos are output through decoding and recombination. According to the invention, the bandwidth allocation and compression strategy can be dynamically optimized, the transmission quality of a key area is guaranteed when the bandwidth fluctuates, and the audio and video transmission efficiency and experience are improved.

The invention discloses a bulk cargo supply chain data transmission method and system based on an intelligent transportation box, and relates to the technical field of logistics data transmission, and the method comprises the steps: collecting multi-modal sensing data in real time through a multi-source data collection interface of the intelligent transportation box; the intelligent transportation box edge calculation module performs cleaning, compression aggregation and key event intelligent identification on the data; a transmission strategy is adaptively selected according to the data type and the network state, a key event alarm message is immediately sent, data are locally cached when the network is interrupted, and subsequent transmission is recovered; transmitting the data to a cloud by adopting a secure communication protocol; the cloud receives management data and provides remote configuration, alarm notification and data visualization functions, the system comprises an intelligent transportation box terminal unit and a cloud service platform unit, data transmission reliability and efficiency are improved, bandwidth and cloud cost are reduced, cargo transportation safety is guaranteed, and the system is suitable for bulk cargo cross-regional transportation scenes.

Example embodiments of the present disclosure relate to methods, devices, and computer storage medium for communication. A terminal device performs a first size alignment of a pair of DCI formats for multi-cell scheduling if a total number of DCI sizes configured to monitor a PDCCH is greater than a predefined number after a plurality of size alignments of a plurality of pairs of DCI formats for single-cell scheduling; and monitors the PDCCH from a network device based on the first size alignment. As such, an order for DCI size alignments may be determined and the total number of DCI sizes may be limited. The DCI formats for multi-cell scheduling may be aligned after size alignments of DCI formats for signal-cell scheduling, thus the blind detection complexity may be reduced and the detection performance may be improved.

The invention relates to the technical field of Internet of Things communication, and provides a low-power-consumption semiconductor communication method based on Internet of Things, which comprises the following steps: acquiring temperature, electromagnetic interference intensity and signal attenuation coefficient data through a multi-mode sensor node, and generating an original environment data set; performing dynamic noise classification on the original environment data set, dividing noise levels and marking noise types; performing hierarchical processing on the data by adopting a multi-stage self-adaptive noise reduction algorithm to generate a preprocessed data set; extracting dynamic characteristic parameters of a communication channel, constructing an energy efficiency prediction model, and dynamically calculating a combination of optimal transmitting frequency, power and modulation order; generating a multi-system modulation signal, superposing a dynamic coding strategy, and adjusting the symbol block length and the error correction code density; and the receiving end analyzes the signal quality index, feeds back the signal quality index to the transmitting end to optimize the parameters and updates the energy efficiency prediction model. According to the invention, the energy efficiency ratio and the anti-interference capability of the Internet of Things communication system can be improved.

A method performed by an integrated access backhaul (IAB) node in a wireless communication system is provided. The method comprises: receiving, from a base station, configuration information regarding an uplink (UL) grant, receiving, from the base station, configuration information regarding backhaul (BH) radio link control (RLC) channel via higher layer signaling, identifying, based on the configuration information regarding BH RLC channel, whether an extended logical channel identifier (eLCID) is used, in case that the eLCID is not used and a UL grant size is equal to or larger than a first size, not transmitting only a padding buffer status report (BSR) or not transmitting only padding or not transmitting only the padding BSR and the padding, and in case that the eLCID is used and the UL grant size is equal to or larger than a second size, not transmitting only the padding BSR or not transmitting only the padding or not transmitting only the padding BSR and the padding.

Methods and apparatus for generating trigger frames that solicit PPDUs from one or more client devices. In an example method, a trigger frame is generated in accordance with the IEEE 802.11bn amendment (UHR) to the IEEE 802.11 standard. The method begins by determining a time duration requirement (or padding field length requirement) for preparing an uplink transmission from a client device. A trigger frame is generated (e.g., by an access point) that includes a frame check sequence (FCS) field, a padding field, and an intermediate FCS value that is included in the padding field. In an example, the dedicated fields of the trigger frame do not explicitly indicate the location of the intermediate FCS value. For a protected trigger frame, a MIC value is further included in the padding field. In other examples, the intermediate FCS value is included within one or more User Info fields of the trigger frame.

The invention is suitable for the technical field of unmanned aerial vehicle communication, and particularly relates to an unmanned aerial vehicle environment monitoring and data processing method supported by edge computing, and the method comprises the steps: obtaining a time sequence data stream collected by a multi-source environment sensing device, and carrying out the compression and processing of the time sequence data stream based on a linear projection compression model, and obtaining a compressed feature vector; calculating a communication cost based on the current heterogeneous network condition and the energy constraint through a preset communication cost function; and executing different data processing strategies based on different communication costs. According to the method, efficient edge compression is realized in an embedded resource limited scene; resource-aware data uploading control is realized through a communication cost function; a Bayesian state fusion method based on a compressed feature space reconstructs a Kalman filtering matrix structure, effectively supports local state estimation and uncertainty control, instantly triggers early warning when an environment index crosses a boundary, and effectively enhances the risk perception and response capability of a system.

The invention discloses a target object targeting agent monitoring method and device based on AI visual identification, belongs to the technical field of termite monitoring, and aims to solve the problems of high manual dependence degree, high misjudgment rate, low data transmission efficiency and the like in traditional target object monitoring. A slow-release targeting agent and a solar hybrid power supply system are arranged in the device, and low-power-consumption endurance is supported. According to the core scheme, vibration and infrared sensor signals are fused, and image acquisition is triggered through feature analysis; recognizing a target object through background difference, a multi-scale image and feature matching, and dynamically optimizing a detection threshold value; after video acquisition, activity intensity is calculated in combination with target tracking and gridding analysis, and transmission is optimized based on intensity and quota; light supplement is automatically adjusted according to ambient light, and image quality is ensured through pixel compensation and brightness adjustment. According to the scheme, a closed-loop system with multi-mode accurate triggering and intelligent identification is constructed, and the intelligence and efficiency of termite monitoring are improved.

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 relates to the field of multimedia communication and network control, in particular to an intelligent network control method for low-delay video return and related equipment. The intelligent network control method comprises the following steps: acquiring network key indexes including bandwidth, delay, jitter and packet loss rate of a network link in real time, and providing real-time network environment data support for transmission strategy adjustment. According to the method, an intelligent control mechanism combining network state perception and video content feature recognition is constructed, so that the technical problem of low-delay video return in a complex network environment is effectively solved. Specifically, key indexes of a network link are collected in real time, and a lightweight CNN model is introduced to analyze the video content activeness, so that dual perception capabilities for a network environment and content features are formed, data support is provided for dynamic adjustment of coding parameters, and accurate balance between video quality and network adaptability is realized.

Technologies for scheduling carrier aggregation (CA) for a user equipment (UE) of a cellular network are described. One method of operating a scheduler of a radio access network include determining a payload size of user data to be exchanged with the UE over a channel. The method further includes analyzing a plurality of parameters associated with a quality-of-service (QOS) requirement of the UE, a quality of the channel, and a plurality of component carriers available at a plurality of bandwidths. The method further includes determining whether and when to activate carrier aggregation (CA) for the UE using at least one additional component carrier of the plurality of component carriers based on the payload size and values of the plurality of parameters.

The invention relates to the technical field of data processing, and discloses an automatic control platform operation state monitoring method and system. The method comprises the steps that an acquisition terminal captures and processes platform multi-source data, a network transmission engine carries out encryption transmission, a decoding system analyzes the data and then constructs a digital twinborn model, a double-flow fusion network outputs health scores, the health scores are mapped to a fault map to predict risks, an early warning system generates an intervention strategy according to the risks and executes the intervention strategy, and a monitoring control closed loop is established. According to the invention, comprehensive, safe and accurate monitoring of the operation state of the automatic control platform is realized, and an effective prediction and intervention mechanism is provided before a fault occurs.

The invention relates to the technical field of digital communication, in particular to an intelligent electric meter dual-mode communication self-adaptive switching method, and provides the following scheme that operation data are divided into a plurality of data units at a sending end, priority evaluation is carried out, and the time delay, the packet loss, the energy consumption and the bandwidth state of two links are combined, so that the intelligent electric meter dual-mode communication self-adaptive switching method is realized. Positioning clearing cut points in the priority sequence so as to realize differentiated distribution of data between a high-speed link and a low-speed link; when the data is distributed to a low-speed link, sparse coding is carried out by adopting a preset dictionary, and differential updating is triggered when an error exceeds a limit, so that decoding consistency is ensured; a receiving end realizes unified analysis of the original message and the sparse message through cross-link association, dictionary updating and residual synthesis; according to the invention, the timeliness of the key message can be guaranteed, the communication energy consumption and cost can be reduced, and the cooperation efficiency of the dual-mode link can be improved.

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. The method begins with a first node associating with a second node, and the first node capturing relevant node information. The first node transmits the relevant node information to the server via the second node operating as an intermediary for indirect communication with the server. A third node captures relevant node information and transmits the relevant node information to the server without using the second node as an intermediary or bridge to the server. Each of the first node, the second node, and the third node may be wireless transceiver-based nodes and respectively implemented as integrated circuits.

Apparatuses and methods for transmission and reception between a reader and an Internet of Things (IoT) device. A method includes receiving a physical reader-to-device channel (PRDCH) from the reader. The PRDCH includes a medium access control (MAC) header and a payload. The MAC header indicates (i) a type of reader-to-device (R2D) message and (ii) information related to determining a size of the payload. The MAC header and the payload are jointly attached with a single set of cyclic redundancy check (CRC) bits. The method further includes determining, based on reception of the PRDCH, a transmission of a physical device-to-reader channel (PDRCH) to the reader including determining a type of device-to-reader (D2R) message, a size of a payload of the D2R message, a length of the PDRCH transmission, and a transmission timing of the PDRCH. The method further includes transmitting the PDRCH to the reader.

A method performed by an integrated access backhaul (IAB) node in a wireless communication system is provided. The method comprises: receiving, from a base station, configuration information regarding an uplink (UL) grant, receiving, from the base station, configuration information regarding backhaul (BH) radio link control (RLC) channel via higher layer signaling, identifying, based on the configuration information regarding BH RLC channel, whether an extended logical channel identifier (eLCID) is used, in case that the eLCID is not used and a UL grant size is equal to or larger than a first size, not transmitting only a padding buffer status report (BSR) or not transmitting only padding or not transmitting only the padding BSR and the padding, and in case that the eLCID is used and the UL grant size is equal to or larger than a second size, not transmitting only the padding BSR or not transmitting only the padding or not transmitting only the padding BSR and the padding.

The invention relates to the technical field of fire monitoring, in particular to a fire scene information monitoring system fused with a mobile communication technology. The method comprises the following steps: firstly, acquiring monitoring data of each piece of monitoring equipment in each monitoring area at each monitoring moment, then judging whether a fire behavior exists or not according to the distribution of the monitoring equipment and the change deviation of the corresponding monitoring data, and constructing a fire behavior spreading model; the communication influence coefficient of each monitoring area is further obtained, the uploading frequency of the monitoring data of each monitoring device is determined in combination with the current bandwidth information and the fire spreading model, and finally communication transmission is carried out according to the uploading frequency. The monitoring data uploading frequency of each monitoring device is adjusted according to the fire scene information, and the load of a mobile network in the same time is reduced, so that the stable transmission of the fire scene information is ensured, and the monitoring effect of the fire scene information is improved.

A user equipment maps a high priority hybrid automatic repeat request-acknowledgment / negative acknowledgment (HARQ-ACK / NACK) information to one or more resource elements (REs), and maps one or more of a low priority HARQ-ACK / NACK information, channel state information (CSI), or uplink-shared channel (UL-SCH) data to REs while rate matching around the mapped high priority HARQ-ACK / NACK REs. A network entity receives an uplink transmission, including high and low priority HARQ-ACK / NACK information, CSI, and UL-SCH data mapped to high and low priority HARQ-ACK / NACK REs, CSI REs, and UL-SCH REs, respectively. The low priority HARQ-ACK / NACK REs, the CSI REs, and the UL-SCH REs are rate matched around the high priority HARQ-ACK / N ACK REs. The network entity demaps and decodes the REs of the high and low priority HARQ-ACK / NACK, the CSI, and UL-SCH to obtain the high and low priority HARQ-ACK / NACK information, CSI, and UL-SCH data.

A data processing method, device and apparatus, and a storage medium are disclosed. The data processing method includes obtaining a data packet including multiple raw data; determining a target data type corresponding to each raw datum in the data packet; determining a target data processing mode corresponding to each raw datum based on a data processing requirement for the data packet and the target data type corresponding to each raw datum in the data packet, the data processing requirement including at least one or more of data compression, data storage and data decoding; and performing data processing on each raw datum based on the target data processing mode corresponding to each raw datum. The method can ensure the integrity of compression of mixed data, reduce the bandwidth and storage space occupied by the transmission of the compressed data packet, and can be implemented in a relatively simple way.

Systems and apparatus are described for enhanced communication within a wireless node network. A system includes a server and multiple nodes, where each node can generate sensed data about or around the node and receive external data from another node according to a server tracked logical connection between those nodes. At least a subset of the nodes can connect to the server using a first connectivity mode or an intermediary connectivity mode. In the first connectivity mode, a first node of the subset can transmit a message directly to the server without using intermediary ones of the nodes (where the message includes sensed data about or around the first node). In the intermediary connectivity mode, the first node can receive the external data from the another node and transmit the external data to the server (where the external data is sensed data about or around the another node).

A data transmission method and a communication apparatus, relating to the field of communications, and capable of selecting, when a network element supports multiple data transmission protocols, a data transmission mode that enables efficient data transmission. In the method, a third network element receives first information used for indicating at least one data transmission protocol supported by a first network element, and thus a first data transmission protocol for data transmission with the first network element or for data transmission between the first network element and the third network element can be determined on the basis of the first information.

The invention belongs to the technical field of image communication, and particularly relates to a salt tide real-time monitoring method and system based on satellite remote sensing, and the method comprises the steps: collecting a remote sensing image of a monitoring region in real time; allocating code words for pixel values in each channel of the remote sensing image by using a variable-length coding algorithm; dividing the code word of each pixel value into a plurality of layers according to the loss threshold value of each layer to obtain a sub-code word of each layer of each pixel value; and performing layered coding on each channel of the remote sensing image by using the sub-code words of each layer of each pixel value, and transmitting coding results of different layers to a monitoring terminal in sequence for salt moisture real-time monitoring. Layered compression transmission is performed on the remote sensing image, and the real-time performance of salt tide monitoring is improved.

A system and method for handling acknowledgments in a wireless system. In some embodiments, the method includes, receiving, by a User Equipment (UE), one or more first transmissions; decoding, by the UE, the first transmissions, to generate a first sub-codebook including one or more corresponding Hybrid Automatic Repeat Request Acknowledgement (HARQ ACK) bit strings each having a first length; receiving, by the UE, one or more second transmissions; decoding, by the UE, the second transmissions, to generate a second sub-codebook including one or more corresponding HARQ ACK bit strings each having a second length, greater than the first length; receiving, by the UE, one or more third transmissions; and decoding, by the UE, the third transmissions, to generate a third sub-codebook including one or more corresponding HARQ ACK bit strings each having a third length, greater than the second length.

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. A first subset of nodes transmits first data messages to the server without using an intermediary device where the first data messages include sensed data generated by the nodes of the first subset of the plurality of nodes about or around the nodes of the first subset of the plurality of nodes. A second subset of the plurality of nodes receives external data from the other of the nodes. The second subset of the plurality of nodes are intermediary devices that transmit the received external data to the server, wherein the received external data from the other of the nodes comprises sensed data about or around the other of the nodes.

The invention discloses a satellite network data sending method and a satellite network data sending device in order to solve the problem that in the prior art, in an ultra-low signal-to-noise ratio mode, frame capture and data demodulation cannot be completed, and therefore the communication requirement of a small-size antenna terminal cannot be met. The frame body part is generated based on the to-be-transmitted satellite load data packet, and the frame header part comprises a pseudorandom sequence and a physical layer signaling which are sufficient in length, so that the signal-to-noise ratio of the whole data frame is improved by increasing the length of the frame header, and the communication performance of the antenna terminal is improved. Therefore, the antenna can be detected and identified by a small-size antenna terminal under the condition of a low signal-to-noise ratio.

The invention relates to the technical field of time-sensitive networks, in particular to a frame preemption method for a sending node and a receiving node in a time-sensitive network, sending equipment and receiving equipment. The frame preemption method comprises the following steps: when a current to-be-transmitted frame is a middle-priority frame and a currently-transmitted frame capable of being preempted meets a first frame preemption condition, performing frame preemption transmission on the current frame capable of being preempted according to a frame preemption loose mode; judging whether the time delay of the current preemptable frame and the middle-priority frame meets a time delay requirement or not; if yes, fragmenting the subsequently transmitted preemptible frame with a default fragmentation length to perform frame preemption transmission; and if not, adjusting the default fragment length, and fragmenting the subsequently transmitted preemptible frame according to the adjusted default fragment length so as to perform frame preemptive transmission. According to the invention, on the premise of ensuring the time delay bounded property of the high-speed frame, the time delay bounded property of the preemptable frame is ensured, and the resource utilization rate and the network efficiency in the time-sensitive network are improved.

A wireless communication device configured with approximation schemes utilizing functional fitting in constellation shaping is disclosed. The device is configured to obtain subintervals over which to form piecewise polynomial approximations of a plurality of terms, obtain, utilizing the piecewise polynomial approximations of the plurality of terms, an approximation of a total number of first symbol sequences over a first alphabet having a first alphabet size, each respective symbol sequence of the total number of first symbol sequences having a first symbol sequence length and a first symbol sequence energy, obtain a bit sequence having a bit sequence length, encode the bit sequence, utilizing the approximation of the total number of first symbol sequences, to a second symbol sequence over a second alphabet having a second alphabet size, the second symbol sequence having a second symbol sequence length and a second symbol sequence energy, and transmit the second symbol sequence.