A method and device for mptcp path selection

Abstract

The embodiment of the invention discloses a multipath-transmission-control-protocol (MPTCP) path selection method and apparatus, wherein the method and apparatus are applied to a mobile terminal. The method comprises: when to-be-transmitted data exist, current available links are identified; when the number of current available links is not less than two, a congestion window value of each available link is obtained; on the basis of a locally stored correspondence relationship between a current to-be-selected link scheme and a target path, a target path transmitting the to-be-transmitted data is determined, wherein a corresponding target path of the to-be-selected link under each congestion window value in any combination mode is recorded in the correspondence relationship between a current to-be-selected link scheme and a target path and the target path is determined according to a throughput-capacity-and-energy-based markov decision-making process. With the method and apparatus, a flow can be balanced effectively according to a real situation of a path and data transmission can be carried out by switching different paths in real time. And thus the throughput capacity of the mobile terminal is improved and the energy consumption is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for selecting a path of a multipath transmission control protocol (Multipath Transmission Control Protocol, MPTCP). Background technique [0002] Nowadays, mobile terminals are becoming more and more popular, and many mobile terminals are equipped with multiple network interfaces. There have been many researches on how to use multiple interfaces to perform concurrent multipath transfer (Concurrent Multipath Transfer, CMT) of data. Multipath Transmission Control Protocol (MPTCP) is a parallel data transmission protocol at the transport layer. MPTCP is an extension of the standard Transmission Control Protocol (TCP), which supports simultaneous transmission of multiple paths, but it also faces more complex tests than TCP. On the one hand, MPTCP needs to provide higher network throughput. On the other hand, when coexisting with TCP, when multiple...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a multipath transmission control protocol (Multipath Transmission Control Protocol, MPTCP) path selection method and device, to solve the existing mechanism can not effectively balance the flow according to the real situation of the path, switch different paths in real time The problem of performing data transfers in order to increase the throughput of mobile terminals and reduce their energy consumption

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