11 results about "Packet aggregation" patented technology

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 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.

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 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.

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.

The present embodiments relate generally to data communications, and more particularly to methods and apparatuses for packet reordering and aggregation. One or more embodiments relate to a solution in which transaction layer reordering is made aware of IDE aggregation requirements. For example, PCIe packets are reordered to minimize the occurrence of blocked packets due to incomplete aggregation for certain types of PCIe packets which still need to be encrypted. This leads to improved traffic variation and higher throughput, while still ensuring that IDE security requirements are upheld and maintained.

Provided are a data transmission method, a data transmission device and an embedded device, wherein the method is applied to the embedded device, the embedded device is connected with a local area network (LAN) device and a cellular device, and is used for enabling the LAN device to access a cellular network provided by the cellular device, the method comprising: receiving a downlink aggregated data packet sent by the cellular device; and / or sending an uplink aggregated data packet to the cellular device; wherein the downlink aggregated data packet is formed by aggregation of multiple downlink data packets, and the uplink aggregated data packet is formed by aggregation of multiple uplink data packets. In this application, the data packet transmission between the embedded device and the cellular device adopts an aggregated transmission mode. For example, multiple uplink data packets are aggregated to form an uplink aggregated data packet for transmission; for another example, multiple downlink data packets are aggregated to form a downlink aggregated data packet for transmission. In this way, the throughput of the network is improved.

The subject technology is directed to an apparatus for managing data packets in a network. In an embodiment, the apparatus comprises a first memory configured to store a plurality of packets. The apparatus further comprises a queue manager configured to receive a plurality of packet descriptors and generate an aggregated packet descriptor based on the plurality of packet descriptors. The apparatus further comprises a traffic manager coupled to the queue manager. The traffic manager is configured to determine a transmission order for the plurality of packets based on the aggregated packet descriptor. A transmitter is coupled to the traffic manager and configured to transmit the plurality of packets based on the determined transmission order. This configuration enables efficient packet storage, aggregation, and transmission scheduling, optimizing overall network performance and resource utilization. There are other embodiments as well.

Aspects of the present disclosure provide various apparatuses and techniques for coalescing data packets. An apparatus can combine multiple data packets together into a large, coalesced frame to reduce processing overhead. An apparatus can coalesce data packets into a coalesced frame based at least in part on dynamically determined coalescing efficiency. The apparatus can change or adjust the value of the dynamically determined coalescing efficiency based on various real-time conditions and requirements. Instead of operating at a fixed coalescing efficiency, the apparatus can continuously determine and update the coalescing efficiency based on a coalescing efficiency threshold.

The application discloses a direct current carrier communication system in the form of a direct current bridge, which comprises a plurality of carrier communication modules, each of which is arranged on a power bus of a zero-carbon building and connected with a power generation system and a main power consumption system of the zero-carbon building, and a direct current bridge is established between the carrier communication modules on different power buses through a direct current carrier information flow; each carrier communication module comprises a CPU module, a power module, a storage module and a communication function module, the power module is connected with the power generation system of the zero-carbon building, and the communication function module comprises a channel estimation unit, a filtering unit, a spectrum sensing unit and a packet aggregation unit. By designing the carrier communication module to cooperate with the power bus of the zero-carbon building to establish a power bridge, the control form is flexible, and the adaptability to the zero-carbon building is high.