43 results about "Packet aggregation" patented technology

The invention presented relates to a method (100) for determining a state of at least one electrochemical cell (301) of an electrochemical energy converter (300), the procedure (100) comprises: - Determining (101) a trend of values ​​determined by at least one sensor (303) of the energy converter (300) over time, - Determining (103) evaluable data packets, - Aggregating (105) at least one range of respective evaluable data packets (205, 209) of values ​​determined by the at least one sensor into at least one aggregated trend, - Assigning (109) a characteristic value to the at least one aggregated trend using a machine learner (400), including a runtime parameter that specifies a runtime of the at least one electrochemical cell (301), - Output (111) of the characteristic value on an output unit, wherein an evaluable data package comprises a multitude of data points whose values ​​differ from each other by no more than a predetermined threshold, at least for a given duration.

A method of operating a network device is provided. The method can include obtaining incoming data packets, conveying the incoming data packets through a parallel data bus, and using a demultiplexer to split the incoming data packets being conveyed through the parallel data bus onto a plurality of separate independent data paths within the network device. The method can further include using a multiplexer to aggregate or merge data packets from the plurality of data paths onto an egress parallel data bus.

The invention provides a link flooding attack cross-layer cooperative defense method and system based on weighted ensemble learning, and belongs to the technical field of link flooding attack (LFA) defens.Metadata obtained through dynamic sampling telemetering is converted into a three-dimensional tensor to serve as input of an LFA prediction model based on weighted ensemble learning, and the LFA prediction model is subjected to LFA prediction; the attack intention is perceived and the attack node is positioned by fusing the multi-view feature learning ability of the diversified base model; according to an LFA prediction result, an LFA attack detection mechanism based on online clustering reasoning is activated in advance, nominal and ordinal number features are extracted, similar data packets are aggregated into a traffic cluster by adopting a Manhattan distance, and an adaptive LFA mitigation strategy is generated by analyzing the aggregation degree of the traffic cluster and evaluating the attack traffic cluster. According to the method, the attack intention can be dynamically perceived and accurately predicted, the contradiction between the limited data plane resource overhead and the attack response timeliness is balanced, the linear speed detection of the attack traffic is realized, and the adaptive defense strategy for different attack modes is generated.

The invention discloses a lightweight encrypted traffic classification method and system based on time anchor diagram representation, and belongs to the technical field of network data security. Original traffic packets are preprocessed, and only head and load data are reserved; constructing a head graph and a load graph, dividing the fixed-length byte sequence into a plurality of time intervals, introducing corresponding anchor nodes, connecting the byte nodes in the intervals with anchor points, and injecting absolute / relative position information into the head graph and the load graph to obtain the head graph and the load graph after the time anchor points are enhanced; and on the head graph and the load graph after the time anchor point enhancement, coding the constructed time anchor point byte graph by adopting small-scale GraphSAGE to obtain a packet level vector, completing encryption traffic category judgment through a very simple classification head, and realizing a flow level decision through multi-packet aggregation. According to the method, the accuracy and robustness of encrypted traffic classification can be effectively improved while light weight and deployability are kept.

The invention relates to the technical field of communication, and provides a packet aggregation method and device for improving block transmission performance, and the method comprises the steps: a sender selects a router to classify packets according to length and priority, and transmits the packets to a dynamic transmission cache; the sending controller sends the various packets in the dynamic sending cache to a receiving controller; the receiving controller transmits the received packets to a dynamic receiving cache; and the receiver selects the router to classify and restore various packets in the dynamic receiving cache, and sends the packets. According to the invention, differentiated processing of the packets with different lengths and different priorities is completed, so that the delay of the sensitive packets is balanced while the throughput rate is ensured.

To reduce bandwidth overheads associated with a message authentication code (MAC), aggregation is useful. To ensure there is no latency impact, something more than aggregation is needed. Integrity and Data Encryption (IDE) securing transaction layer packets (TLPs) can be used in a dynamic manner whereby before aggregating a new packet to the IDE TLP, a determination is made regarding whether the packet contains user data so that the packets with user data can be sent immediately rather than wanting for more packets to aggregate. On the receiving side, execution of the packet can occur before completing an integrity check that occurs in IDE TLP transfers to reduce latency.

Data may be transmitted from a first device to a second device over a data link by transmitting header information for a coalesced data packet before aggregation of data into the coalesced data packet has been completed. The coalesced data packet may aggregate multiple data packets from a data source into a payload. As the second device may receive the header information before it receives the coalesced data packet, the second device may process the received header information without waiting to receive the coalesced data packet.

The present disclosure relates generally to wireless communications, and more particularly to systems and methods for dynamic configuration of a packet convergence protocol (PDCP) configuration. In one embodiment, the method performed by a communication device includes: receiving configuration information from a communication node; and for a packet convergence protocol of each data radio bearer, determining a number of replicas or logical paths based on the configuration information.

The invention relates to the technical field of industrial network security, and provides a traffic anomaly detection method and device based on multiple time scales and online incremental learning, equipment and a medium. The core of the method is that metadata are generated by collecting and analyzing the network traffic of the industrial control system; constructing and dynamically optimizing a network traffic behavior baseline model by combining data packet aggregation, short-term and long-term multi-window collaboration and an incremental updating mechanism; and finally, performing multi-dimensional anomaly detection on the real-time traffic by using the model. Through a multi-window cooperation mechanism, second-level instantaneous flow sudden change and hour-level long-term service trend in an industrial control network are synchronously captured, and the problem that a single detection window is poor in adaptability to a complex industrial control flow mode is effectively solved; through an incremental updating mechanism, low-overhead and self-adaptive dynamic evolution of the baseline model is realized, and the false alarm rate and the maintenance cost are remarkably reduced, so that the robustness, the accuracy and the efficiency of industrial network traffic anomaly detection are comprehensively improved.

The invention discloses a low-power-consumption data packet aggregation transmission method and system of a wireless Bluetooth chip, and relates to the technical field of wireless communication. The method comprises the following steps: establishing a connection event energy model according to transmitting power, wake-up power consumption, a physical layer mode and a connection interval, and collecting received signal strength and the number of error packets in a connection period to generate a link quality grade and an estimated retransmission frequency, and estimating two energy consumptions of immediate transmission and delayed aggregation based on an energy model, link quality and cache data, and generating a transmission strategy mark by combining the residual tolerable delay and service priority, and indicating to transmit according to the cache data in the current connection or execute aggregation transmission according to a set aggregation byte quantity and an aggregation time window in the subsequent connection. The aggregation scheduling is performed by fusing energy modeling, link quality and service time delay priority at a chip side, so that the connection energy consumption is reduced on the premise of meeting the time delay constraint, and the overall transmission energy efficiency is improved.

The application discloses a low-power data packet aggregation transmission method and system of a wireless Bluetooth chip, and relates to the technical field of wireless communication. The method comprises the following steps: establishing a connection event energy model according to a transmission power, a wake-up power consumption, a physical layer mode and a connection interval; collecting a received signal strength and a number of error packets during the connection to generate a link quality level and an estimated retransmission number; estimating two energy consumptions of immediate sending and delayed aggregation based on the energy model, the link quality and buffered data; and generating a sending strategy mark combined with a remaining tolerable time delay and a service priority, which indicates sending buffered data in the current connection or performing aggregated sending according to a set aggregation byte amount and an aggregation time window in a subsequent connection. The method fuses energy modeling, link quality and service time delay priority for aggregation scheduling on the chip side, reduces connection energy consumption and improves overall transmission energy efficiency under the premise of meeting time delay constraints.

In one embodiment, a network device includes a network interface to receive secured packets from a remote device over a packet data network, each of the secured packets being secured according to a security protocol and including a respective security protocol header and a Transmission Control Protocol (TCP) packet, which is encrypted according to the security protocol, a host device interface to connect the network device to a host device, and packet processing circuitry to decrypt each of the secured packets based on the respective security protocol header yielding multiple decrypted packets including decrypted TCP packets, aggregate the decrypted TCP packets into a single aggregated packet, and provide the single aggregated packet to software running on a processor of the host device via the host device interface.

The application provides a power hierarchical routing aggregation method and system, which defines an aggregation window, configures a total timeout time, a tentative correlation parameter for the aggregation window, and initializes a loss count, a tentative probability and a waiting set of each sub-flow, starts the aggregation window to receive sub-flow data, and makes tentative judgment on the aggregation window according to the receiving result, sends a pre-warning packet to a missing sub-flow through the tentative result and the tentative probability, collects a pre-warning reply, updates the loss count, the tentative probability and the waiting set of the sub-flow through the pre-warning reply, waits for the sub-flow according to the update state of the waiting set, updates the loss count and the tentative probability of the sub-flow in the waiting set through the waiting result, and performs data packet aggregation forwarding after the waiting set is empty and the tentative initiation condition is not met or after the aggregation window times out, resets the aggregation window and performs the next round of aggregation after forwarding, so that the balance among aggregation efficiency, data integrity and resource saving is achieved through the power hierarchical routing aggregation method.

A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action frame, management frame, CSI frame, control frame, or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead of directly sending an acknowledgement (ACK) packet. The responder preferably accesses the wireless medium to send the response frame in a short inter-frame spacing (SIFS). With this scheme, a long delay associated with having to contend for the wireless medium to send the response frame is avoided and therefore, the responsiveness and timeliness of the feedback mechanism is significantly enhanced. The response frame may be piggybacked on or aggregated with another packet.

The invention discloses a satellite network simulation system and method based on an abstract packet and dual-path processing, and mainly solves the problem that the existing satellite network simulation technology is difficult to give consideration to high fidelity and high efficiency in a large-scale and high-traffic scene. The system comprises a switch, a control unit, an abstract packet construction unit, a satellite network simulator and an abstract packet deconstruction unit, and the switch is bidirectionally connected with the units and serves as a connection platform of the system to receive and forward data; the satellite network simulator is used for network layer protocol simulation. The abstract packet construction unit is used for distinguishing a control packet from a service data packet and aggregating the data packet into an abstract packet; the abstract package deconstruction unit restores the abstract package into an original data package, and modifies and verifies the data package according to a simulation result; the control unit manages operation parameters of the system and provides a time synchronization and human-computer interaction interface. According to the method, the system throughput can be improved while the simulation precision is guaranteed, high efficiency and high fidelity are achieved, configuration is flexible, deployment cost is low, and the method can be used for network protocol verification and routing algorithm performance evaluation of large-scale satellite constellations.

A multi radio media access control (MAC) (MRM) transceiver includes a plurality of transceiver systems, each transceiver system assigned a different MAC address, and a memory configured to aggregate, in a shared queue, a plurality of packets of a data stream received via a computer network. Each of the transceiver systems is configured to asynchronously acquire one or more of the packets from the shared queue for transmission in one of a plurality of transmission channels. Each one of the transmission channels comprises a different frequency. The transmission channels are maintained for simultaneous transmission of the one or more packets to a common target user equipment (UE) that is wirelessly coupled to the MRM transceiver.

The present invention provides a data packet activation method, device, network equipment and terminal, and relates to the field of communication technology. The method comprises: in the uplink configuration authorization CG transmission, instructing the terminal to stop the configuration authorization CG timer corresponding to the hybrid automatic request process number HPN through the physical downlink control channel PDCCH, and using the subsequent configuration authorization opportunity CGO for new data packet transmission and / or activating the data packet convergence protocol PDCP copy transmission and corresponding life time of the new data packet. The scheme of the present invention can realize that the network device instructs the terminal to abandon the previously transmitted data packet through PDCCH, and activates the PDCP copy transmission and corresponding life time of the new data packet, thereby improving the reliability of the data and reducing the waste of air interface resources, thereby better supporting the service quality of the new ultra-reliable low-latency communication with life time.

The application provides an RDMA message aggregation processing method and a network card device, and belongs to the technical field of data communication, and comprises the following steps: S1, an RDMA message analysis step, which comprises a hardware level message capture, a BTH header analysis, and a message classification and metadata generation link; S2, an RDMA cache step, which comprises a message descriptor record and a cache strategy link; S3, an RDMA message aggregation step, which comprises an aggregation context table, an aggregation flow, a newly created aggregation flow, and an existing context aggregation flow link; and S4, a zero-copy aggregation step, which comprises metadata transmission, DMA delay processing, and host memory writing links. In view of the fact that the existing network cards do not attempt to perform stateless aggregation processing on RDMA messages when processing the RDMA messages, the application aggregates multiple received RDMA messages into one larger RDMA message to send to a downstream module for processing, thereby reducing the number of messages processed by the downstream module and improving the bandwidth of the network card for processing the RDMA messages.

The invention belongs to the field of PCIe exchange chips, and relates to a PCIe message aggregation exchange method and device, and the device comprises a PCIe inlet port, an inlet aggregation module, a crossbar switch, an outlet deaggregation module, and a PCIe outlet port. The entrance aggregation module is used for screening and matching the plurality of received TLPs according to a preset aggregation condition, and judging whether an aggregation requirement is met or not; the crossbar switch is used for receiving the CTLP or the independent TLP sent by the inlet aggregation module, and forwarding the CTLP or the independent TLP to the corresponding outlet deaggregation module according to a destination port of a message; and the outlet deaggregation module is used for receiving the message forwarded by the crossbar switch and judging whether the message is a CTLP or an independent TLP. The bandwidth utilization rate is greatly improved, the transmission delay is remarkably reduced, the compatibility is excellent, the implementation cost is low, the reliability is high, and the universality is high.

A method and apparatus for processing stateful services, which relate to the field of communication technologies and are used to improve the processing performance of a single service when a network card processes stateful service offloading. The method is applied to a network card, and the network card is connected to a host, and includes: preprocessing a received first packet to obtain aggregation information of the first packet; aggregating the first packet into a first queue according to the first packet aggregation information, where the first queue is used to aggregate packets of a first connection to which the first packet belongs, and the first connection is a connection where a stateful service is located; when a preset condition is satisfied, processing multiple packets aggregated in the first queue according to the context of the first connection to obtain a second packet, where the context of the first connection is an updated context after obtaining the previous second packet of the first connection; and sending the second packet to the host.

A user equipment (UE) is configured to: determine a real-time transport protocol (RTP) packet size; determining to aggregate one or more voice packets into the RTP packet based on the RTP packet size; determining the number of the one or more voice packets; and transmitting the RTP packet including the number of the one or more voice packets.

A method and a device for combined transmission of voice packets in non-terrestrial network are disclosed. A method of a UE comprises the steps of: receiving aggregation configuration information for a packet aggregation operation from a base station; generating a first combined packet comprising multiple packets on the basis of the aggregation configuration information; and transmitting the first combined packet to the base station.

In one embodiment, a network device comprises: a network interface configured to receive secured packets from a remote device over a packet data network, each of the secured packets being secured according to a security protocol and comprising a respective security protocol header and a Transmission Control Protocol (TCP) packet encrypted according to the security protocol; a host device interface configured to connect the network device to a host device;and packet processing circuitry configured to decrypt each of the secured packets based on the respective security protocol header, resulting in a plurality of decrypted packets comprising decrypted TCP packets, aggregate the decrypted TCP packets into a single aggregated packet, and provide the single aggregated packet to software running on a processor of the host device via the host device interface;

The embodiment of the present application provides a user data processing method and device, which relates to the field of communications, can reduce the load of data packets, and can reduce user plane delay. The method is as follows: a terminal device receives a first configuration parameter from a network device, the first configuration parameter includes at least one of the number of aggregated data packets N, the size of the aggregated data packet S, and the state of the resource block RB, and the first configuration parameter is used to instruct the terminal device to aggregate data packets through the packet data convergence protocol PDCP layer; the PDCP layer of the terminal device aggregates multiple data packets according to the first configuration parameter to generate an aggregated data packet; the PDCP layer delivers the aggregated data packet to the medium access control MAC layer or the radio link control RLC layer after the data packet aggregation is completed, or the PDCP layer delivers the aggregated data packet to the MAC layer or the RLC layer according to a preset delivery period.

To reduce the bandwidth overhead associated with a message authentication code (MAC), aggregation is beneficial. However, to ensure no latency impact, more than just aggregation is required. Integrity and Data Encryption (IDE) can be dynamically employed to secure transaction layer packets (TLPs). This determines whether a new packet contains user data before aggregating it into an IDE-TLP, allowing packets containing user data to be sent immediately instead of requiring further packet aggregation. On the receiving end, packet execution can occur before the integrity check performed during IDE-TLP transmissions is completed, further reducing latency.

The invention relates to the technical field of communication, and provides a block transmission packet aggregation method and device combined with a codec, and the method comprises the steps: (1) carrying out the soft coding and decoding packet aggregation method for a scene in which an application process block transmission packet needs to be coded and decoded; the soft coding and decoding small packet aggregation method is realized by a sender application process, a first encoder, a receiver application process and a first decoder; (2) performing a hard coding and decoding packet aggregation method aiming at a scene in which a driving program block transmission packet needs to be coded and decoded; the hard coding and decoding small packet aggregation method is realized by a sender driver, a second encoder, a receiver driver and a second decoder. According to the invention, the packet throughput rate of a coding and decoding block transmission channel can be improved, and the problems of low block transmission packet coding and decoding efficiency and low throughput rate are solved.

Provided are a data transmission method, a data transmission device and an embedded device, the method being applied to the embedded device, the embedded device being connected with a local area network (LAN) device and a cellular device for enabling the LAN device to access a cellular network provided by the cellular device. The method comprises the following steps: receiving a downlink aggregation data packet sent by the cellular equipment; and / or sending an uplink aggregation data packet to the cellular device; wherein the downlink aggregated data packet is formed by aggregating a plurality of downlink data packets, and the uplink aggregated data packet is formed by aggregating a plurality of uplink data packets. In the invention, the data packet transmission between the embedded device and the cellular device adopts an aggregation transmission mode. For example, a plurality of uplink data packets are aggregated to form an uplink aggregated data packet for transmission; for example, a plurality of downlink data packets are aggregated to form a downlink aggregated data packet for transmission. Therefore, the throughput of the network is improved.

The present invention relates to a diagnostic method (100) for diagnosing a state of an electrochemical cell (301) of an electrochemical energy converter (300), wherein the diagnostic method (100) comprises:determining (101) a curve (201) of electrical properties of the electrochemical cell over time,determining (103) analyzable data packets (205, 209),aggregating (105) at least one region (207, 211) of respective analyzable data packets (205, 209) into an aggregated curve,determining (107) a slope for at least one region of the aggregated curve,assigning (109) a characteristic value to the slope according to a specified assignment scheme in order to quantify a state of the electrochemical cell,outputting (111) the characteristic value on an output unit,wherein an analyzable data packet (205, 209) comprises a plurality of data points whose values differ from one another by at most a specified threshold value for at least a specified duration.

This invention belongs to the field of PCIe switching chips and relates to a PCIe packet aggregation and switching method and apparatus. The apparatus includes a PCIe ingress port, an ingress aggregation module, a crossbar switch, an egress deaggregation module, and a PCIe egress port. The ingress aggregation module is used to filter and match multiple received TLPs according to preset aggregation conditions to determine whether they meet the aggregation requirements. The crossbar switch is used to receive CTLPs or independent TLPs sent by the ingress aggregation module and forward them to the corresponding egress deaggregation module according to the destination port of the packet. The egress deaggregation module is used to receive packets forwarded by the crossbar switch and determine whether they are CTLPs or independent TLPs. This invention significantly improves bandwidth utilization, significantly reduces transmission latency, has excellent compatibility, low implementation cost, high reliability, and strong universality.