METHOD, DEVICE AND SYSTEM FOR MULTIPATH TCP CONGESTION CONTROL

摘要

Embodiment of the present invention provides a method, device and system for multipath TCP congestion control, and belongs to the technical field of communication, in order to control congestion before congestion occurs and to improve data transmission efficiency. Said method includes: a receiver receives packets sent by the first access network node in at least one of multipath transport control protocol TCP sub-flows which have been established by a sender in the first access network. If it is detected that the said packet has ECT tag marked by a first flag which supports for explicit congestion notification ECN and has congestion alarm CE tag marked by a second flag, then the receiver does congestion control. Wherein, ECN echo ECE tag of the said packet is marked by a third flag and congestion window reduced CWR tag is marked by a fourth flag. The invention is used for congestion control.