Method, device, equipment and storage medium for determining transmission rate

Abstract

The embodiment of the invention discloses a method, device, equipment and storage medium for determining a transmission rate. Among them, the method includes: obtaining a transmission rate that matches the bandwidth extremum detected in the previous transmission period, as the base value of the transmission rate of the current transmission period; determining the current transmission period estimated by the change of the network parameters in the historical transmission period The corresponding gain coefficient under the change of the internal bandwidth; adjust the base value of the transmission rate according to the gain coefficient to obtain the transmission rate of the current transmission cycle. The technical solution provided by the embodiment of the present invention adjusts the corresponding transmission rate in real time according to different network states, and does not need to use the default fixed mode transmission rate to transmit data. When transmitting data through the transmission rate of the current transmission cycle, the current The network bandwidth of the transmission cycle increases the data transmission rate.

Description

technical field [0001] The embodiments of the present invention relate to the field of data transmission, and in particular, to a method, device, device, and storage medium for determining a transmission rate. Background technique [0002] With the rapid development of Internet technology, data transmission on different devices is becoming more and more common. At this time, in order to improve the utilization rate of network bandwidth in the process of data transmission, a new congestion control algorithm (Bottleneck Bandwidth and Round-trip) is proposed. Propagation Time, BBR), the BBR algorithm can detect the maximum value of the network bandwidth and the minimum value of the round-trip delay through different working states, and then determine the data transmission rate according to the maximum value of the network bandwidth and the minimum value of the round-trip delay. Improve the utilization of network bandwidth and effectively reduce the round-trip delay of network d...

AI Technical Summary

Problems solved by technology

[0003] The existing BBR algorithm will have a built-in transmission cycle when the control network is working in the bandwidth detection state. The transmission cycle accumulates 8 round-trip delays by default, which are divided into 1 gain sub-cycle, 1 loss sub-cycle and 6 smooth transmissions. There are three sub-cycles. By default, the transmission rate gain coefficient of the gain sub-cycle in this transmission cycle is 1.25, the transmission rate gain coefficient of the impairment sub-cycle is 0.75, and the transmission rate gain coefficient of the smooth transmission sub-cycle is 1. At this time, the BBR algorithm can Control sending 25% more data in the gain sub-period, and if the current network packet loss rate is greater than 25%, then the extra data sent in the gain sub-period will be completely offset by the packet loss, and it will be reduced by 25% in the loss sub-period The transmission of data reduces the overall data volume of the transmission period, resulting in the current detected network bandwidth being lower than the maximum bandwidth, which reduces the data transmission volume in the next transmission period determined according to the currently detected network bandwidth, thereby reducing each The data transmission rate of the transmission cycle, which eventually leads to a cliff-like decline in the data transmission rate in the network

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