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1. WO2015140050 - METHOD FOR OPERATING A CACHE ARRANGED ALONG A TRANSMISSION PATH BETWEEN CLIENT TERMINALS AND AT LEAST ONE SERVER, AND CORRESPONDING CACHE

Publication Number WO/2015/140050
Publication Date 24.09.2015
International Application No. PCT/EP2015/055221
International Filing Date 12.03.2015
IPC
H04L 29/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04L 29/08 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
08Transmission control procedure, e.g. data link level control procedure
H04N 21/2343 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
234Processing of video elementary streams, e.g. splicing of video streams or manipulating MPEG-4 scene graphs
2343involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
H04N 21/235 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
235Processing of additional data, e.g. scrambling of additional data or processing content descriptors
H04N 21/435 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
435Processing of additional data, e.g. decrypting of additional data or reconstructing software from modules extracted from the transport stream
H04N 21/4402 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs
4402involving reformatting operations of video signals for household redistribution, storage or real-time display
CPC
H04L 65/612
H04L 65/80
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
65Network arrangements or protocols for real-time communications
80QoS aspects
H04L 67/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
67Network-specific arrangements or communication protocols supporting networked applications
02involving the use of web-based technology, e.g. hyper text transfer protocol [HTTP]
H04L 67/568
H04N 21/23106
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
231Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
23106involving caching operations
H04N 21/234345
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
2343involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
234345the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
Applicants
  • THOMSON LICENSING [FR]/[FR]
Inventors
  • GOUACHE, Stéphane
  • HOUDAILLE, Rémi
  • TAIBI, Charline
Agents
  • MORAIN, David
Priority Data
14305393.220.03.2014EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR OPERATING A CACHE ARRANGED ALONG A TRANSMISSION PATH BETWEEN CLIENT TERMINALS AND AT LEAST ONE SERVER, AND CORRESPONDING CACHE
(FR) PROCÉDÉ DE FONCTIONNEMENT D'UN CACHE AGENCÉ LE LONG D'UN CHEMIN DE TRANSMISSION ENTRE DES TERMINAUX CLIENTS ET AU MOINS UN SERVEUR, ET CACHE CORRESPONDANT
Abstract
(EN) Cache (DANE) located along a transmission path between client terminals (CT) and at least one server (SE) and configured to receive requests from client terminals (CT) for segments of a multimedia content available at several representations, which comprises: - an interface of connection (1) for receiving, from a first client terminal, a first request for a preferred representation and at least one alternative representation of a given segment of said multimedia content; - a matching module (5) configured to determine if at least one ongoing representation of said given segment, already requested by the cache from a server for a further client terminal, matches the preferred representation or an alternative representation of the first request.
(FR) L'invention concerne un cache (DANE) situé le long d'un chemin de transmission entre des terminaux clients (CT) et au moins un serveur (SE), et configuré pour recevoir des requêtes à partir de terminaux clients (CT) pour des segments d'un contenu multimédia disponible au niveau de plusieurs représentations, lequel cache comprend : - une interface de connexion (1) pour recevoir, à partir d'un premier terminal client, une première requête pour une représentation préférée et au moins une représentation alternative d'un segment donné dudit contenu multimédia ; - un module de mise en correspondance (5) configuré pour déterminer si au moins une représentation en cours dudit segment donné, déjà demandée par le cache à partir d'un serveur pour un autre terminal client, correspond ou non à la représentation préférée ou à une représentation alternative de la première requête.
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