A multi-network concurrent transmission method for scalable coded video streams

Abstract

The invention relates to a multi-network concurrent transmission method for scalable coded video streams, comprising: classifying network abstraction layer units in scalable coded video streams, and classifying network abstraction layer units that have a greater impact on video quality as the first class, classify the network abstraction layer units that have less impact on video quality into the second class; in the first class and the second class, respectively sort the network abstraction layer units in the class according to the order from large to small; Allocate the accessible network to each network abstraction layer unit after sorting, among them, for the network abstraction layer unit in the first category, allocate the accessible network with the smallest packet loss rate and available capacity, for the second category The network abstraction layer unit in , allocates an accessible network with the minimum delay and available capacity that meets the packet loss rate requirements.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a multi-network concurrent transmission method for scalable coded video streams. Background technique [0002] In recent years, the mobile video service has grown rapidly and has gradually become the dominant service of the mobile Internet. According to Cisco's market research report, mobile video traffic is expected to account for more than half of global mobile traffic by 2015. However, transmitting high-quality video streams often requires a large amount of bandwidth. For example, it takes an average of 6-8Mbit / s to transmit an H.264 encoded 1080P video. Although the broadband wired network can meet the transmission requirements of such high-quality video streams, it is difficult to achieve high-quality video quality through a single wireless access network. This is because the wireless access network has limited resources and time-varying channels, and only using a sin...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the multi-network concurrent transmission method in the prior art that does not consider the load balancing between access networks and the out-of-order arrival of data packets when doing packet scheduling, thereby providing a method that can improve heterogeneous access A Method for Parallel Transmission of Video Stream Performance in Network

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