Method, system and network for transmitting multimedia data to a plurality of clients

A multimedia data and multimedia technology, applied in the transmission system, image communication, selective content distribution, etc., can solve the problems of less research on multi-access DASH streaming, and no further consideration of the impact, so as to improve the quality of user experience, The effect of improving user satisfaction and improving wireless resource utilization efficiency

Inactive Publication Date: 2014-02-12
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these approaches tend to optimize adaptive HTTP streaming for a single user without further consideration of the impact on other DASH users sharing network resources
In fact, to date, the problem of multi-access DASH streaming has been poorly studied

Method used

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  • Method, system and network for transmitting multimedia data to a plurality of clients
  • Method, system and network for transmitting multimedia data to a plurality of clients
  • Method, system and network for transmitting multimedia data to a plurality of clients

Examples

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Embodiment Construction

[0053] According to an embodiment, QoE-driven multi-access DASH is provided that optimizes adaptive HTTP media distribution to multiple clients in a wired or wireless network. By definition, the adaptive HTTP streaming function is semi-decentralized, ie (a) the client is responsible for estimating the streaming data rate and making segmentation decisions, and (b) the QoE optimizer does the overall resource allocation.

[0054] Embodiments of the invention illustrate an approach that takes into account the benefits of adapting network resources to user perceived quality in adaptive HTTP streaming by rewriting client requests. Different from the rate adaptation scheme on a single DASH stream that adapts to throughput changes, the QoE-driven multi-user rate adaptation approach according to embodiments of the present invention directly considers the condition that the stream content exhibits different rate-distortion characteristics Next, the impact on user experience quality. Em...

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Abstract

For transmitting multimedia data to a plurality of clients (104a, 104b) over a network (102), wherein the multimedia data is stored in a plurality of formats of different multimedia rates, on the basis of utility information for the multimedia data, the utility information describing a relationship between multimedia quality and multimedia rate, and on the basis of a condition of the network (102), for each of the plurality of clients (104a, 104b) available multimedia rates for the multimedia data are determined. In response to a client request (114) for transmitting the multimedia data with a desired multimedia rate, in accordance with the available multimedia rates determined for the requesting client (104a, 104b), a format of the requested multimedia data is selected and the multimedia data is transmitted in the selected format to the requesting client (104a, 104b).

Description

technical field [0001] The invention relates to the field of providing multimedia data to multiple clients through a network, and more specifically relates to a method, a system and a network for transmitting multimedia data to multiple clients. Embodiments of the present invention relate to a method of providing video data to multiple clients over a wireless or wired network from a server providing the video data. Background technique [0002] There is a growing demand for reliable and efficient distribution of rich multimedia content from a server holding the multimedia content to multiple client devices in a wired or wireless network. For example, in wireless networks, the increased capabilities of mobile devices and the improved capabilities of wireless networks have led to a huge increase in mobile video consumption. Recently, Dynamic Adaptive Streaming over HTTP (DASH, also known as MPEG-DASH or 3GP-DASH (see Ref. [1]) has been standardized for mobile multimedia strea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/238H04N21/234H04N21/643H04N21/845H04N21/647H04L47/2416
CPCH04N21/23439H04L65/602H04L65/4084H04N21/2402H04L65/762H04L65/612H04L65/756H04L65/60
Inventor M·施哈达D·斯塔勒W·凯勒尔E·斯坦贝克A·艾尔埃塞莉D·施罗德
Owner NTT DOCOMO INC
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