A traffic control method for tcp service and access network element

Abstract

The present invention provides a TCP service-oriented flow control method and an access network element. The method includes: after the bearer corresponding to the TCP service of the user equipment UE is established, judging the working mode of the current TCP service; if the current TCP service The working mode is the low-latency working mode, then according to the HARQ mechanism, determine whether the uplink feedback information pre-sent by the UE is ACK information; if yes, construct an ACK message for sending to the core network element, and construct The ACK message is added to the top of the uplink delivery queue, and the uplink delivery queue is a queue for sending messages to network elements of the core network. The above method can effectively suppress data loss and delay jitter caused by bursts, shorten transmission RTT, and improve TCP service throughput.

Description

technical field [0001] The invention relates to a communication technology, in particular to a TCP service-oriented flow control method and an access network element. Background technique [0002] With the rapid development of computer network and communication technology, new wireless and wired network environments are constantly emerging, which not only bring convenience to users, but also greatly affect the performance of the current TCP (Transmission Control Protocol, Transmission Control Protocol). influences. The traditional TCP Reno protocol was proposed based on the early network environment. The sender judges the occurrence of data packet loss based on repeated ACK (Acknowledgment, response / confirmation) messages, interprets such loss as network congestion, and then uses additive increase Multiplicative subtraction method to adjust its own congestion window. In the new network environment, due to the gradual failure of the above-mentioned congestion judgment and b...

AI Technical Summary

Problems solved by technology

The higher delay and packet loss rate make it impossible for the TCP protocol using the AIMD (Additive Increase Multiplicative Decrease) mechanism to obtain good transmission performance, and it also reduces the bandwidth utilization of the wired network.

[0005] That is to say, the TCP protocol designed for wired networks has high requirements for packet loss rate and delay jitter, especially after being carried on the LTE network, there are problems such as unstable traffic, delay jitter, and low retransmission efficiency. Greatly affect user experience

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