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

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 present invention discloses a CoMP-based congestion control method. The method includes: the primary cell integrates itself and the primary cell according to the air interface resources needed to relieve the current congestion, and the channel quality information and remaining air interface resources of itself and each cooperative cell. The air interface resources of each coordinated cell, and adjust the resource scheduling of itself and each coordinated cell. The present invention also discloses a congestion control system based on CoMP. The present invention does not need to tear down the UE service, nor does it reduce the QoS of the UE service, and does not require the participation of the UE. The air interface congestion control of the CoMP LTE-A system can effectively improve the overall throughput of the system.

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.

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.