39results about How to "Implement congestion control" patented technology

The invention discloses a two-layer block control method of wireless network, comprising that A, current network node detects self block condition and executes step B when in block, B, current network blocked node sends a block control message with self block condition to connected an ascending network node or a nearby node, C, the network node receiving the block control message, according to the block condition adjusts local node transmission speed. The invention makes clear block detection, message sending, and block control, to be directly used in real network, as wireless multi-jump network which comprises wireless network, mobile Ad hoc network and wireless sensor network or the like, thereby reducing local block.

The invention relates to a video wireless transmission control method suitable for CDMA2000, which comprises the following steps: (1) taking CDMA2000EVDO as a wireless access mode; (2) packaging H.264 video streams again based on the real-time transport protocol (RTP); (3) introducing an RTCP feedback mechanism to realize congestion control: 3.1) acquiring video data packets by a receiving terminal from a sending terminal; 3.2) judging the current state of the network by adopting the RTP / RTCP at the receiving terminal, and feeding the state back to the sending terminal in a form of a receiving terminal report; and 3.3) adjusting the video transmission rate by the sending terminal by adjusting the video resolution and the frame rate; and (4) realizing real-time interconnection of any equipment terminal to any monitoring point by adopting a mode of point-to-point interconnection. The invention can be effectively suitable for transmitting real-time videos in an unstable wireless channel with low bandwidth, high error code and high delay.

The invention discloses a method for configuring a radio resource. The method may comprise the following steps: acquiring channel busy ratio congestion control related information; determining that aPC5 interface sends a radio resource parameter of a resource pool according to the congestion control related information; and sending internet of vehicles service data on the PC5 interface accordingto the radio resource parameter. According to the method and the device in the invention, UE can select the radio resource parameter of the PC5 interface when not possessing the CBR measurement capability, unable to measure the CBR, or reducing the CBR measuring load, thereby ensuring the V2X service of the UE on the rails and realizing congestion control of the resource of the PC5 interface.

The invention discloses a deep-learning-based SDN (Software Defined network) flow forecasting method, which comprises the following steps: building an SDN flow forecasting model, and respectively adding corresponding modules into all layers of an SDN; acquiring a network flow of a forwarding layer to a control layer for forecasting analysis to realize overall optimization of the application layer;and putting a network flow forecasting strategy into a whole SDN system in a penetrating manner to guarantee stable and efficient operation of a network and improve the quality of service of the SDNsystem. The invention provides an SDN flow forecasting model and designs a complete forecasting mechanism on the basis of the forecasting model. All the modules work coordinately to complete a networkflow forecasting function together, and a forecast result can be used for link switching of a lower layer and application analysis of an upper layer to realize jam control and load balancing of the network; and the distribution of network resources and the networking design are reasonably optimized to improve the operation efficiency of the SDN.

The invention discloses a cooperative multi-point (CoMP)-based congestion control method, which comprises the following steps that: a main cell integrates own air interface resources and the air interface resources of each cooperative cell according to the air interface resources required by the removal of current congestion, own channel quality information and residual air interface resources, and the channel quality information and residual air interface resources of each cooperative cell, and regulates own resource scheduling and the resource scheduling of each cooperative cell. The invention also discloses a CoMP-based congestion control system. A user equipment (UE) service is not required to be snatched and removed, reduction in the quality of service (QoS) of the UE service also can be avoided, the participation of UE is not required, a congestion control flow is simple, air interface congestion control over a CoMP-based long term evolution-advanced (LTE-A) system is also realized, and the overall throughput of the system can be effectively improved.

The invention discloses a data transmission rate control method, a data transmission rate control system and user equipment. The method comprises the steps of S1 receiving and storing a data packet sent to a local end by an external end; S2 respectively reading the data packets received in the local end within the preset time before and after the latest code rate adjustment, and recording the corresponding number of the read data packets; and S3 judging a current code rate adjustment state, and entering a code rate increasing / decreasing processing flow according to a first judgment result, wherein the process of increasing / decreasing the code rate comprises the step of updating the code rate adjustment state according to the read data packets and the corresponding number. According to theinvention, statistical information data transmitted between the external end and the local end are few; the current bandwidth can be accurately and rapidly calculated; the code rate is adjusted in time; and congestion control is well achieved.

The embodiment of the invention provides a network congestion control method and device, and relates to the technical field of network communication, and the method comprises the steps: obtaining first information reflecting the relations between the number of data packages transmitted by network equipment in a communication network and the number of received acknowledgement characters (ACK) in apreset duration; obtaining second information reflecting the network time delay of the communication network within a preset time length; obtaining the number of lost packets of the communication network within a preset duration; predicting a value of a to-be-adjusted parameter of the network equipment according to the first information, the second information and the packet loss number; and controlling the network equipment to adjust the to-be-adjusted parameter according to the predicted value so as to realize network congestion control. By applying the scheme provided by the embodiment of the invention, a better network congestion control effect can be achieved in different networks.

Disclosed in an embodiment of the present invention is a method for realizing congestion control. The method comprises the steps of acquiring congestion control information of a first network device, the congestion control information comprising a total bandwidth of a first egress port of the first network device and a number of active flows corresponding to a first queue of the first egress port, and determining a transmission rate of a first data stream in the active streams according to the congestion control information, the transmission rate being positively correlated with the total bandwidth and negatively correlated (such as inversely proportional) with the number of the active streams, and the transmission rate being used for a transmission device of the first data stream to transmit the first data stream. The information for determining the data flow sending rate comprises the total bandwidth of the output port of the network equipment and the number of the active flows corresponding to the queue of the output port, so that the condition of the network equipment can be accurately reflected, and congestion control can be effectively realized according to the sending rate determined by the implementation mode.

The embodiment of the invention discloses a congestion method and congestion control equipment of a user datagram protocol (UDP) service, and relates to the technical field of communication, capable of controlling congestion of the UDP service, reducing a packet loss probability of a UDP service data packet caused by relatively poor downlink network quality, and thus improving data transmission reliability. The specific scheme of the method comprises the steps as follows: a base station receives a first UDP service data packet sent by a server, wherein the first UDP service data packet is thedata packet corresponding to a UDP service initiated by a client, the second UDP service data packet is the data packet corresponding to the UDP service initiated by the client, the second UDP servicedata packet is cached in a cache space which is pre-configured by the base station aiming at the UDP service, and the size of the cache space is determined according to the quality of a downlink network between the base station and the client; and if the cache space is full, the base station discards the first UDP service data packet, and sends a congestion message to the server.

The invention discloses an ad hoc network elastic transmission control method based on blockchain security attributes. According to the ad hoc network elastic transmission control method, the advantages of the blockchain technology are combined, the data transmission behavior of the whole network is controlled based on a unified security attribute threshold of the whole network, and the problems of low transmission efficiency and the like caused by high dynamic and transmission intermittency of cluster network nodes in traditional end-to-end transmission are solved. A hop-by-hop transmission mode is combined with an environment perception and scheduling strategy, so that safe and flexible transmission and congestion control of heterogeneous nodes are realized, and the end-to-end transmission reliability of cluster data is ensured.

The invention discloses a congestion control method and a device. The method comprises that: an MTC-IWF receives first indication information from an SMS-SC via a T4 interface, wherein the first indication information is used for indicating the MTC-IWF to perform congestion control on Trigger information; and the MTC-IWF performs congestion control according to the first indication information. Besides, the SMS-SC receives congestion indication information of a service node in which a user device is located, and congestion control is performed on the Trigger information according to the congestion indication information. With application of the congestion control method and the device, a problem in the related technology that how does the T4 interface perform congestion control is solved so that robustness and stability of the system are enhanced, and the MTC-IWF and the SMS-SC perform congestion control on the Trigger information when the Trigger information is sent via the T4 interface.

The invention discloses a video data processing method and device and a computer readable storage medium, and relates to the technical field of network transmission. The video data processing method comprises: identifying a message of a preset service flow in acquired video flow, determining a message discarding probability corresponding to the preset service flow, and performing packet loss processing on the message of the corresponding preset service flow based on the message discarding probability corresponding to the preset service flow. According to the embodiment of the invention, the message of each preset service flow can be identified, and corresponding packet loss processing is carried out according to the message discarding probability corresponding to each service flow. Therefore, congestion control for the specific service flow is realized, and the service quality is not influenced. Moreover, the calculated amount is small, and the congestion control efficiency is high.

The invention aims to provide a method, equipment and a system for controlling P2P (Peer-to-Peer) data transmission. According to the method, a plurality of P2P connections are subjected to speed management at a first equipment end, that is, only when a sub speed-limiting token corresponding to a current P2P connection and data request information sent from second equipment are acquired, data corresponding to the data request information can be sent to a corresponding end. Compared with the prior art, concurrent P2P connection support is realized, unified management of the plurality of P2P connections is realized, bandwidth is fully utilized, instantaneous and long-time fairness among the P2P connections is ensured, and TCP friendliness is provided; and meanwhile, an upload speed-limiting mechanism also ensures smooth data transmission, and prevents network jitter influence.

The invention provides a data transmission method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: building a first TCP connection with UE when the UE sends a data message to a data network DN through a first user plane function UPF unit; receiving a data message forwarded by the first UPF unit through the first TCP connection, and establishing a second TCP connection between a TCP optimization module in a second UPF unit and the DN; and determining the sending rate of the data message based on the gain state of the TCP optimization module and the bandwidth of the second TCP connection, and sending the data message to the DN through the second TCP connection at the sending rate. According to the scheme, when the UE has an uplink service requirement, two TCP connections are established between the UE and the DN by taking the TCP optimization module as a forwarding node, so that the transmission rate of the TCP connections between the UE and the DN can be optimized through the TCP optimization module, congestion control is realized, the performance of a TCP layer is improved, and the data service quality of an application layer is further improved.

The present application discloses a data transmission rate control method, system and user equipment. The method includes: S1, receiving and storing the data packets sent from the external terminal to the local terminal; S2, respectively reading the data packets received in the local terminal within the preset time before and after the latest code rate adjustment, and recording the read data The corresponding number of packets; S3. Judging the current code rate adjustment state, and entering the increase / decrease code rate processing flow according to the first judgment result; wherein, the increase / decrease code rate processing flow includes performing the process according to the read data packets and the corresponding number Rate adjustment status update. In this application, there are few statistical information data transmitted between the external terminal and the local terminal, and the current bandwidth can be calculated accurately and quickly, and the code rate can be adjusted in time, so that congestion control can be well realized.

A congestion control method, terminal, and computer-readable storage medium provided by an embodiment of the present invention, the method includes: acquiring measured values ​​of congestion parameters on multiple carriers; and selecting the The first type of carrier where the terminal is currently sending services and is congested; reselecting a carrier for the service packet sent by the terminal on the first type of carrier, and / or, adjusting the terminal on the first type of carrier The size of the business package. The present invention can realize congestion control based on carrier adjustment or segmented service package adjustment under multi-carrier, and improve the reliability of service package transmission.

Embodiments of the present disclosure relate to methods and devices for congestion control. Specifically, the embodiments of the present disclosure relate to methods implemented at network devices and terminal devices, and corresponding network devices and terminal devices. For example, a method implemented at a network device includes receiving a first congestion level report from a first terminal device located in an area of ​​a cell of the network device, the first congestion level report indicating that the first a first estimated congestion level of a resource pool assigned by the network device to the area as determined by the terminal device; determining a congestion level of the resource pool based at least in part on the first estimated congestion level; and broadcasting an indication of the The congestion level information of the congestion level is provided for the second terminal device located in the area to receive, wherein the second terminal device cannot directly estimate the congestion level of the resource pool.

The invention, which relates to the technical field of congestion control of a CLOS system, discloses a congestion control method and apparatus for a multi-level CLOS system. The congestion control method comprises: a type of congestion control needed by a CLOS system is determined; if the congestion control is global congestion control, a corresponding response is made according to a GCI instruction generated by the system and global congestion is controlled by reducing or stopping a cell sending service in an ethernet multicast mode; if the congestion control is route congestion control, a corresponding response is made according to an RCI instruction generated by the system and route congestion is controlled by reducing a unicast flow; and if the congestion control is link congestion control, link congestion is controlled by reducing effective data on a link according to an LLFC instruction generated by the system; and when congestion control is determined to be carried out continuously, the above-mentioned steps are executed circularly. According to the invention, the work efficiency and performances of the CLOS system are protected from being reduced due to congestion, so that the scheduling capability and performance of the whole system are kept.

The invention discloses a congestion control method and device for a multi-stage CLOS system, and relates to the technical field of congestion control of the CLOS system. The congestion control method includes: determining the type of congestion control that the CLOS system needs to perform, and if it is global congestion control, making a corresponding response according to the GCI indication generated by the system, and controlling the overall Congestion; if it is routing congestion control, respond accordingly according to the RCI indication generated by the system, and control routing congestion by reducing unicast traffic; if it is link congestion control, according to the LLFC indication generated by the system, by reducing valid data to control link congestion; when it is determined that congestion control needs to be continued, the above steps are performed cyclically. The invention can prevent the working efficiency and performance of the CLOS system from being reduced due to the occurrence of congestion, thereby maintaining the overall dispatching ability and performance of the system.

The embodiment of the invention discloses a congestion control method and an Internet of Things platform, and the method comprises the steps of enabling the Internet of Things platform to be connectedwith a plurality of terminals, and determining an uplink control mode and / or a downlink control mode of at least one terminal in the plurality of terminals, wherein the uplink control mode comprisesenabling the Internet of Things platform to send an online time period in which the terminal can transmit the uplink information and a gateway capable of being accessed when the terminal transmits theuplink information, to the terminal, and the downlink control mode comprises enabling the Internet of Things platform to acquire the air interface paging capability of a base station connected with the terminal, judging whether the number of terminals to be paged by the base station exceeds the air interface paging capability of the base station or not, and judging whether the downlink information is issued to the terminal or not based on the judgment result. Through the scheme of the invention, the network congestion can be reduced, the success rate of data transmission is ensured, and the transmission efficiency of the network is improved.

The invention discloses a two-layer block control method of wireless network, comprising that A, current network node detects self block condition and executes step B when in block, B, current network blocked node sends a block control message with self block condition to connected an ascending network node or a nearby node, C, the network node receiving the block control message, according to the block condition adjusts local node transmission speed. The invention makes clear block detection, message sending, and block control, to be directly used in real network, as wireless multi-jump network which comprises wireless network, mobile Ad hoc network and wireless sensor network or the like, thereby reducing local block.

Embodiments of the invention disclose a congestion control method and apparatus for a message queue. When a target message queue receiving to-be-sent messages is congested, the to-be-sent messages are not actively discarded and are transferred to other message queues with low priorities; the transmission of the to-be-sent messages is ensured by occupying the message queues with the low priorities; and while the congestion of the target message queue is controlled, the transmission rate of the to-be-sent messages can be ensured.

The invention provides a priority-based flow control (PFC) circuit and method. The circuit comprises a storage part, a statistics part and a configuration part. Data can be stored in eight logical channels on a physical storage without mutual influence. Flexible configuration can be realized on the basis of mutual independence of each channel: the buffer space size of each logical channel can be configured as required, and the PFC message transmission (ON frame) and PFC message demodulation (OFF frame) occasions of each logical channel can be configured as required. Through adoption of the PFCcircuit and method, relevant functions of PFC can be implemented conveniently, and the overall performance of a system is improved. Moreover, a general resolution is provided in an IP module complexing Application-Specific Integrated Circuit design, so that the product research and development time is shortened, and the design cost is lowered. The PFC circuit and method have the characteristics of convenience and flexibility, and multi-channel congestion control can be realized reliably.

The invention relates to the technical field of network communication, in particular to an ECN threshold configuration method and device. The method comprises the steps that target scene parameters of a target output port in a current traffic forwarding scene are acquired, and the scene parameters of one output port are parameters related to traffic forwarded through the output port; judging whether a target ECN configuration matched with the target scene parameter exists in an association relationship between a preset scene parameter and the ECN configuration or not; and if it is judged that target ECN configuration matched with the target scene parameter exists in the incidence relation between the preset scene parameter and ECN configuration, configuring an ECN threshold of the target output port based on the target ECN configuration.

The invention discloses a sliding mode prediction congestion control system suitable for a satellite space information transmission network, and the system comprises: a sliding mode controller, an SCPS-TP protocol Vegas module, a network router module, a prediction module, and an interference estimation module; the sliding mode controller comprises a reaching law sliding mode surface model and a supplementary item, and is in one-way connection with the SCPS-TP protocol Vegas module; the SCPS-TP protocol Vegas module comprises a nonlinear module and a matching type interference new module, and is in one-way connection with the network router module; the network router module is in one-way connection with the interference estimation module; the prediction model is not arranged in a control loop and is directly connected with the sliding mode controller; and the interference estimation module is bidirectionally connected with the sliding mode controller. The control system has an anti-interference capability, keeps relatively good stability and robustness, can cope with negative effects caused by long time delay, and finally realizes congestion control of the satellite space information transmission network.

The invention discloses a special data filtering method for eliminating denial-of-service attack to DNS (domain name system) service. The special data filtering method includes steps of firstly, capturing a network data sample of a DNS server; secondly, extracting characteristic attributes of the captured network data sample; thirdly, determining a time function which is a piecewise time function; fourthly, creating a training data matrix of a normal flow and a train data matrix of an attack flow according to the captured network data sample; fifthly, continuing capturing traffic data packets on the DNS server in real time, and classifying and detecting the traffic data packets by a Bayes classifier; sixthly, filtering classification results, judging whether a data flow is the attack flow or not, completely abandoning the data flow if the data flow is the attack flow, and adopting a filtering method based on classification probability according to the congestion condition of the DNS server if the data flow is the normal flow; and seventhly, turning to the fifth step to carry out the same process. By the special data filtering method, data are filtered and processed after the denial-of-service attack flow is detected, and influence of the denial-of-service attack on the DNS server is eliminated.

The invention is applicable to the vehicle network field, and provides a method for controlling DSRC resource allocation, a base station and a vehicle communication terminal. The vehicle communication terminal includes a dedicated short-range communication DSRC module and a cellular mobile communication module, the DSRC module and the cellular mobile communication module are connected through an interface; the DSRC module is used for wireless connection with DSRC modules in other vehicle communication terminals, Realize wireless communication between vehicles; the cellular mobile communication module is used to receive the control message of the resource allocation of the base station to the DSRC module, and forward it to the DSRC module through the interface, and forward the received DSRC module to the cellular mobile communication module through the interface The communication module receives the resource allocation request message sent by the cellular mobile communication module to the base station. The invention can realize the base station to control the resources of the DSRC, flexibly adjust the configuration parameters of the resources, realize the congestion control of the DSRC, and adjust the configuration according to the scene.

The invention discloses an adaptive MPTCP data scheduling method. The method includes that establishing a Markov model according to the congestion window of each subflow; calculating according to the Markov model to obtain the average congestion window size of each subflow; calculating according to the time stamp field to obtain the current round trip time value of each subflow; predicting according to the average congestion window size of each subflow and the round trip time value to obtain the average effective throughput on each subflow; dynamically adjusting the congestion window size of the minimum sub-flow according to the average effective throughput of each subflow to avoid the minimum sub-flow from congestion; and adjusting the slow start threshold according to the adjusted congestion window size to make the adjusted subflows at the congestion avoidance phase. The adaptive MPTCP data scheduling method overcomes the defects of the existing MPTCP data scheduling and congestion control technology, so that MPTCP can adaptively carry out more reasonable scheduling for network fluctuation and network isomerization, and the efficiency and reliability of multi-path data transmission can be improved.