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11 results about "Congestion window" patented technology
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In Transmission Control Protocol, the congestion window is one of the factors that determines the number of bytes that can be outstanding at any time. This is not to be confused with the TCP window size which is maintained by the receiver. This is a means of stopping the link between two places from getting overloaded with too much traffic. The size of this window is calculated by estimating how much congestion there is between the two places. The sender maintains the congestion window. When a connection is set up, the congestion window, a value maintained independently at each host, is set to a small multiple of the maximum segment size allowed on that connection. Further variance in the congestion window is dictated by an Additive Increase/Multiplicative Decrease approach. This means that if all segments are received and the acknowledgments reach the sender on time, some constant is added to the window size. The window keeps growing exponentially until a timeout occurs or the receiver reaches its limit. After this the congestion window increases linearly at the rate of 1/packets on each new acknowledgement received. On timeout:
Cooperative congestion control method based on attention-driven multi-path tcp subflow dependency modeling
PendingCN122268805AAchieve unified decision-makingRealize collaborative controlBiological modelsTransmissionCongestion windowNetwork generation
The application provides a kind of collaborative congestion control method based on attention-driven multi-path TCP sub-flow dependency modeling, MPTCP connection is established by sending end and receiving end;Subflow running data is read from MPTCP protocol stack by state monitoring module;Each subflow feature of the normalized state matrix input is weighted and fused by using self-attention layer;Action vector A is generated by Actor network t , and the effective congestion window of each subflow is used as the available sending window constraint when sending data;Action value Q is generated by Critic network;Reward R is calculated by reward calculation module t ;Form collaborative congestion control model;Realize online adaptive control;This method can realize unified decision and collaborative control of multiple subflows, can realize collaborative consistency of congestion control effect and scheduling result, and can improve the stability and comprehensive performance of multi-path transmission.
Owner:NANJING UNIV OF POSTS & TELECOMM
Device-side data transmission method and system based on WebRTC technology
The application relates to the technical field of data communication, and discloses a device end data transmission method and system based on WebRTC technology, which establishes a communication network through WebRTC and an adaptive network protocol corresponding to the communication network, so that when the current network state is in a congested state, the data transmission rate is determined according to the network bandwidth and the round-trip delay, and when the current network state is in an idle state, the data transmission rate is determined according to the congestion window size and the packet loss rate. The network can accommodate the data amount based on the network bandwidth and the round-trip delay, and the data transmission rate is determined, the network bandwidth is fully utilized, the data preemption capability is improved, the congestion window size and the packet loss rate control the data transmission rate, the data error rate during data transmission is reduced, the reliability of data transmission is improved, the flexibility during WebRTC data transmission is improved from two aspects, and the data transmission effect is greatly improved.
Owner:广域铭岛数字科技有限公司 +1
Message transmission method and device, electronic equipment, related medium and program product
The present disclosure provides a message transmission method and device, electronic equipment, related medium and program product. The message transmission method comprises: generating a first data message; initializing a first bottleneck congestion window value and a first bottleneck load degree in the first data message, and sending the first data message, so that each forwarding device of a current communication path updates the first bottleneck congestion window value with an out-port congestion window value of the forwarding device when the out-port congestion window value is smaller than the first bottleneck congestion window value, and updates the first bottleneck load degree with an out-port load degree of the forwarding device when the out-port load degree is greater than the first bottleneck load degree; receiving a first acknowledgement message; and performing a route switching process according to the first bottleneck congestion window value and the first bottleneck load degree in the first acknowledgement message. The present disclosure can quickly and accurately detect the congestion condition of the communication path and implement timely route switching, which helps to improve the message transmission efficiency.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD
A method for controlling packet disordering of a space-based bearer network based on segment routing
Owner:THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION +1
Congestion window control based on driving conditions
Systems and methods are provided for adjusting congestion window size in response to detecting or predicting changes in driving conditions. For example, a method of the presently disclosed technology may involve: (1) detecting or predicting a change in positional relationship between a first vehicle and a second vehicle; (2) based on the detected or predicted change in positional relationship, predicting a change in throughput for a wireless communication link between the first vehicle and the second vehicle; and (3) based on the predicted change in throughput, adjusting size of a congestion window for the wireless communication link.
Owner:TOYOTA MOTOR ENG & MFG NORTH AMERICA INC +1
Packet transmission method and apparatus, electronic device, related medium, and program product
The present disclosure provides a packet transmission method and apparatus, an electronic device, a related medium, and a program product. The packet transmission method comprises: generating a data packet, a first field in the data packet having a first original port number; on the basis of a congestion window value corresponding to a current routing period of a sending device, determining that a first original path from the sending device to a receiving device is congested; selecting, from a first candidate port number set, a first virtual port number corresponding to the current routing period, updating the first field with the first virtual port number, and placing the first original port number in a second field of the data packet, the first virtual port number being used to perform routing computation to obtain a first alternative path from the sending device to the receiving device; and sending the data packet, such that the receiving device, after receiving the data packet, extracts the first original port number from the second field, and updates the first field with the first original port number to perform transport layer protocol processing.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD
Managing a data streaming session
Embodiments of systems and methods for managing a data streaming session may include identifying one or more parameters of a second communication link in response to determining that a user equipment (UE) that is receiving data for a data streaming session has changed from a first communication link to the second communication link, selecting an initial congestion window size that is larger than a default congestion window size based on the one or more parameters of the second communication link, and applying the selected initial congestion window size to the data streaming session.
Owner:QUALCOMM INC
A bandwidth adaptive dynamic throttling data distribution system
This invention relates to the field of digital information transmission technology, specifically to a bandwidth-adaptive dynamic rate-limited data distribution system. The system includes a physical layer state acquisition front-end, a signal-to-noise ratio (SNR) trend prediction front-end, a cross-layer rate-limiting decision front-end, and a distribution execution front-end. The physical layer state acquisition front-end acquires the SNR sequence of the target distribution link; the SNR trend prediction front-end inputs the SNR sequence into a Kalman filter model and outputs a predicted value of the available bandwidth of the link, the state transition matrix parameters of which are dynamically determined by the multipath delay spread value of the current link; the cross-layer rate-limiting decision front-end compares the predicted value of the available bandwidth of the link with the current sliding window congestion window value of the transport layer and takes the smaller value as the dynamic rate-limiting threshold; the distribution execution front-end adjusts the data packet transmission interval of the transmission queue according to the dynamic rate-limiting threshold. This scheme reduces the transmission rate in advance based on the bandwidth prediction results before physical layer channel fading causes packet loss at the transport layer.
Owner:XIAN COCO CLOUD SOFTWARE TECH CO LTD
A broadband speed measurement method based on TCP protocol
ActiveCN121418327BImprove speed measurement accuracyAvoid multi-factor interferenceCongestion windowEngineering
The present application relates to the technical field of broadband speed measurement, and discloses a broadband speed measurement method based on a TCP protocol, which solves the problem that the existing broadband speed measurement method cannot meet the demand of an operator for local precise speed measurement of a user end and cannot accurately return a broadband speed measurement rate under different speed measurement servers and network environments.The present application first matches and counts speed measurement target messages through a kernel hook function, and excludes non-speed measurement data interference; then dynamically adjusts the ACK reply frequency and the TCP congestion window size according to the real-time sending rate of the speed measurement server, quickly adapts the network state to occupy the available bandwidth; finally, the IQR algorithm is used to eliminate outliers in the speed measurement result and calculate the effective average value, and finally the speed measurement result that conforms to the real bearing capacity of the broadband line is output, which meets the demand of the operator for local precise speed measurement of the user end.
Owner:四川长虹新网科技有限责任公司
Coal mine emergency resource dynamic data intelligent analysis and scheduling system based on large model
PendingCN122175209AData processing applicationsKnowledge based modelsCongestion windowEmergency rescue
This invention relates to the field of coal mine safety production and emergency rescue technology, and discloses a coal mine emergency resource dynamic data intelligent analysis and scheduling system based on a large model. The system includes: a semantic causal knowledge base construction module for parsing and constructing an experience base for emergency plans; a dynamic physical map maintenance module for real-time updating of roadway access costs; an abnormal event vectorization module for generating environmental feature vectors; a virtual impedance map correction module for constructing an anisotropic emergency situation map by combining emergency plan logic and environmental features; a resource scheduling planning module for generating conflict-free time-series trajectories using a moving congestion window; and a scheduling instruction generation and interaction module for converting instructions and dynamically allocating communication resources. This invention achieves anisotropic path planning by mapping the semantic logic of the emergency plan to the virtual impedance of the physical topology, and utilizes a spatiotemporal congestion detection mechanism to resolve multi-machine collaboration conflicts in confined spaces, thereby improving the safety and real-time performance of resource scheduling in disaster environments.
Owner:CHINA COAL INFORMATION TECH (BEIJING) CO LTD