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Data rate adaptation for multicast delivery of streaming content

A streaming and multicast transmission technology, used in transmission systems, digital transmission systems, transmission link error control systems, etc., to solve problems such as wrong quality levels, inability to see and evaluate links, etc.

Active Publication Date: 2021-09-03
TELEFON AB LM ERICSSON (PUBL)
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, DASH media players may not be able to see and evaluate links that actually limit the sending of DASH segments, and thus incorrectly choose the quality level

Method used

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  • Data rate adaptation for multicast delivery of streaming content
  • Data rate adaptation for multicast delivery of streaming content
  • Data rate adaptation for multicast delivery of streaming content

Examples

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Embodiment Construction

[0029]Hereinafter, concepts according to exemplary embodiments of the present invention will be explained in more detail with reference to the accompanying drawings. The illustrated embodiments relate to streaming content in a communication network. Assume a communication network capable of delivering streaming content from a server to one or more media players. For example, such a media player may be connected to a server via a radio interface. Such a radio interface may eg be based on cellular radio technology (eg LTE technology) or on WLAN radio technology. In addition, such media players can also connect to servers through wire-based technology. Such wire-based technology may be based, for example, on DSL technology, coaxial cable networking technology, or fiber optic networking technology. In some scenarios, a combination of these technologies can also be used to connect media players to servers. Streaming content may, for example, correspond to multimedia content des...

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Abstract

A client device (100) receives segments of streaming content in a multicast transmission mode. The client device (100) determines an input data rate associated with receiving segments in multicast transmission mode. Based on the input data rate, the client device (100) sets the output data rate. In response to a request from the media player (140), the client device (100) outputs the received segments to the media player (140) at the output data rate.

Description

technical field [0001] The present invention relates to methods and corresponding devices for streaming content. Background technique [0002] In communication networks, such as cellular networks as specified by 3GPP (Third Generation Partnership Project), it is known to use unicast and multicast or broadcast transmissions in order to deliver streaming content to client devices, e.g. , as specified in "Transport of MPEG-2TS Based DVB Services over IP Based Networks", DVBBlueBook A86 (March 2015). An example is a technique known as Multicast Adaptive Bit Rate (M-ABR), e.g. as in CableLabs "IP Multicast Adaptive Bit Rate Architecture Technical Report", OC-TR-IP-MULTI-ARCH-V01-141112 (2014) As specified in , this technique leverages IP (Internet Protocol) multicasting combined with client-driven rate adaptation for scalable and cost-effective delivery. Specifically, the client device can detect the available link quality and select a succession of segments that conform to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L29/06
CPCH04L1/0014H04L1/0025H04L2001/0097H04L65/80H04L65/611H04L65/764H04L65/765
Inventor 托斯腾·洛马尔穆罕默德·易卜拉欣
Owner TELEFON AB LM ERICSSON (PUBL)
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