Edge node control

Abstract

There is provided a method for providing edge node fault management and bandwidth, BW, control for transmission of a data stream in a packet-based network. The method comprises adaptively transmitting a data stream DS by controlling an outgoing data stream being transmitted to one or more client devices by analyzing at least one data stream characteristics of a corresponding received data stream of the one or more receiving client devices and providing a transmission strategy for the outgoing data stream based on said analyzed data stream characteristics. Thereby accurate adjustment of consumed BW and an associated recovery scheme based on applying adaptive bitrate, ABR, to maintain highest achievable performance when it comes to video quality and also affect on other services, are provided.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional of U.S. application Ser. No. 16 / 079,347, filed Aug. 23, 2018, which is a national phase under 35 U.S.C. § 371 of PCT International Application No. PCT / EP2017 / 054290 which has an International filing date of Feb. 24, 2017, which claims priority to Sweden Application No. 1650254-4, filed Feb. 26, 2016, the entire contents of each of which are hereby incorporated by reference.FIELD OF THE INVENTION[0002]The present invention relates to broadcasting and media distribution over IP (Internet Protocol) networks, and more particularly to edge node fault management and bandwidth (BW) control for transmission of a data stream in a packet-based network.BACKGROUND OF THE INVENTION[0003]Video distribution for live TV over a packet-network, like the Internet, has some challenges. In today's solution, the normal mechanisms for transferring data files is the so called TCP transmission control protocol. This protocol ensur...

AI Technical Summary

Benefits of technology

This approach ensures reliable and efficient live video distribution by minimizing delays and interruptions, optimizing video quality, and managing bandwidth effectively across the network, thereby preventing congestion and oscillations, and maintaining a high level of performance.

Problems solved by technology

Video distribution for live TV over a packet-network, like the Internet, has some challenges.

This means that it is not possible to ensure when data arrives and it uses a “fits all” strategy for retransmission.

In such system, the client device needs to buffer data because it is not certain that the network can offer the bandwidth required by the video stream, and for video the client device needs to have video data to present to maintain viewer experience.

Such adjustments introduce delay and the video cannot be considered as live distribution.

For example, in a typical situation the receiver detects a lot of lost packets and requests retransmission of the lost packets, and when the actual BW available for the receiver has decreases because of more devices sharing the same bandwidth, bad connectivity to base station or hotspot or network congestions occur.

The requests for retransmission of lost packets together with the video stream will temporarily consume more capacity than available and therefore worsen the situation.

If that delay is exceeded, the data is accepted as lost.

This means that there is a bounded delay of the transport.

To handle the shifts in BW of the video stream without (or with minimum) interruptions is a challenge.

This is however not good since in a situation where the BW decreases, the sender sends more information which also potentially is redundant.

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