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1. (WO2010114451) METHODS AND ARRANGEMENTS FOR SYSTEM PROVIDING MEDIA VIA MULTICAST DISTRIBUTION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/114451 International Application No.: PCT/SE2009/051320
Publication Date: 07.10.2010 International Filing Date: 23.11.2009
Chapter 2 Demand Filed: 29.12.2010
IPC:
H04N 7/173 (2006.01) ,H04L 29/08 (2006.01) ,H04N 7/24 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
16
Analogue secrecy systems; Analogue subscription systems
173
with two-way working, e.g. subscriber sending a programme selection signal
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29
Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02
Communication control; Communication processing
06
characterised by a protocol
08
Transmission control procedure, e.g. data link level control procedure
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
24
Systems for the transmission of television signals using pulse code modulation
Applicants:
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) [SE/SE]; S-164 83 Stockholm, SE (AllExceptUS)
HALÉN, Joacim [SE/SE]; SE (UsOnly)
SOUZA, Victor [BR/SE]; SE (UsOnly)
Inventors:
HALÉN, Joacim; SE
SOUZA, Victor; SE
Agent:
NORIN, Klas; Ericsson AB Patent Unit SLM Torshamnsgatan 23 S-164 80 Stockholm, SE
Priority Data:
61/165,11331.03.2009US
Title (EN) METHODS AND ARRANGEMENTS FOR SYSTEM PROVIDING MEDIA VIA MULTICAST DISTRIBUTION
(FR) PROCÉDÉS ET AGENCEMENTS POUR SYSTÈME FOURNISSANT DU CONTENU MULTIMÉDIA PAR DISTRIBUTION EN MULTIDIFFUSION
Abstract:
(EN) The present invention relates to a server and a method for achieving a fast channel change in e.g. an IPTV system. This is achieved by selecting a source for retrieving the requested channel based on the current load of the FCC server. The source may be the streaming server providing the regular multicast stream or a buffer providing a buffered version of the requested channel. According to one embodiment requests for fast channel change (relating to the same channel) are grouped and served and served as a bundle over multicast. By doing that one can alleviate the load on the FCC server and the network since multiple clients can share the same stream.
(FR) La présente invention porte sur un serveur et un procédé pour réaliser un changement de canal rapide (FCC) par exemple dans un système de télévision sur IP (IPTV). Cela est réalisé par sélection d'une source pour récupérer le canal demandé sur la base de la charge courante du serveur FCC. La source peut être le serveur de transmission en continu fournissant le flux de multidiffusion ordinaire ou un tampon fournissant une version mise en tampon du canal demandé. Selon un mode de réalisation, des requêtes de changement de canal rapide (relatives au même canal) sont groupées et servies sous la forme d'un groupe sur multidiffusion. Il est ainsi possible d'alléger la charge sur le serveur FCC et le réseau étant donné que de multiples clients peuvent partager le même flux.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)