Multipath-based data transmission and path selection method and device in wireless equipment
A wireless transmission and device path technology, applied in the field of wireless transmission, can solve problems such as inability to meet path selection, real-time data transmission requirements, reduced path selection efficiency, serious path selection delay, etc., and achieves small differences in transmission quality and improved Efficiency, the effect of reducing time delay
Active Publication Date: 2017-06-06
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
However, in the existing RTT-based path selection method, it is necessary to send RTT test data packets for RTT measurement, and the measurement process involves processes such as sending, receiving, and confirmation return of RTT test data packets. The time delay reduces the path selection efficiency
Moreover, if the transmission quality of the transmission path is low, the measurement delay of the RTT of the path is more serious, resulting in a more serious delay in path selection, which cannot meet the real-time requirements of path selection and data transmission.
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[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.
[0038] As used herein, terms such as "module" and "system" are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a module may be, but is not limited to being limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an applicatio...
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The invention discloses a multipath-based data transmission method, path selection method and path selection device in a wireless apparatus. The data transmission method comprises the following steps: the received signal strength RSS value of each wireless transmission path in an apparatus path set is measured, wherein the apparatus path set comprises each wireless transmission path of the wireless apparatus having the data transmission capability; the wireless transmission paths of which the RSS values are less than a set RSS threshold value are rejected from the apparatus path set to obtain a set of paths to be measured; the round-trip time RTT value of each path in the set of paths to be measured is measured; the paths of which the RTT values are greater than a set RTT threshold value are rejected from the set of paths to be measured to obtain a set of selected paths; and the paths in the set of selected paths are used for multipath data transmission. By applying the method and device of the invention, the path selection efficiency and real-time performance can be improved.
Description
technical field [0001] The invention relates to the field of wireless transmission, in particular to a multipath-based data transmission and path selection method and device in wireless equipment. Background technique [0002] MPTCP (Multi-Path Transmission Control Protocol, Multi-Path Transmission Control Protocol) is a transport layer protocol that uses multiple paths for concurrent transmission; wireless devices can distribute data on multiple paths for parallel transmission through the MPTCP protocol, improving wireless device throughput of data transfers and increase network utilization. [0003] In practical applications, when performing data distribution between multiple paths, the wireless device needs to consider pre-selecting paths among multiple available wireless links. If there are transmission paths with poor transmission quality among the selected paths, Data transmission on this path is likely to cause problems such as timeout, error, packet loss, and retran...
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IPC IPC(8): H04L5/00
Inventor 范文浩唐碧华刘元安吴帆张洪光金小敏罗润文
Owner BEIJING UNIV OF POSTS & TELECOMM