HRP20120616T1 - Postupak prijenosa i primanja signala te uređaj za prijenos i primanje signala - Google Patents

Postupak prijenosa i primanja signala te uređaj za prijenos i primanje signala Download PDF

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HRP20120616T1
HRP20120616T1 HRP20120616AT HRP20120616T HRP20120616T1 HR P20120616 T1 HRP20120616 T1 HR P20120616T1 HR P20120616A T HRP20120616A T HR P20120616AT HR P20120616 T HRP20120616 T HR P20120616T HR P20120616 T1 HRP20120616 T1 HR P20120616T1
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plp
nit
transport
signal frame
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HRP20120616AT
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English (en)
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Taek Hong Ho
Suk Ko Woo
Pil Kim Jin
Hui Lee Joon
Hyung Song Jae
Ho Kim Kyung
Yeul Suh Jong
Chul Moon Sang
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Lg Electronics Inc.
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Publication of HRP20120616T1 publication Critical patent/HRP20120616T1/hr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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 synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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 synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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 synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
  • Television Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Postupak primanja emitiranog signala, postupak je prikladan za: primanje signala koji obuhvaća okvir signala, gdje okvir signala obuhvaća jedan ili vi®e podatkovnih komada koji nose vod na fizičkom sloju (Physical Layer Pipe, PLP), i jedan ili vi®e pilot simbola koji nose Sloj 1, L1, signalni podaci za podatkovne komade i pilot simboli su podijeljeni prema smjeru frekvencije u barem dva L1 bloka iste ®irine pojasa; dobivanje sloja 2, L2, informacije uključujući tablicu s mre·nim podacima (Network Information Table, NIT) iz okvira signala; dobivanje NIT uključujući identifikator PLP-a (PLP_id) i identifikator sustava prijenosa (transmission_system_id) iz dobivene L2 informacije; dobivanje PLP-a koji odgovara identifikatoru PLP-a i identifikatoru sustava prijenosa uključenog u NIT; idobivanje prijenosnog toka (transport stream, TS) prema kojem je PLP mapiran, gdje deskriptor dostavnog sustava prijenosa uključujući identifikator PLP-a, identifikator sustava prijenosa i aktivno polje trajanja simbola ortogonalne modulacijske tehnike u frekvencijskoj domeni (OFDM) u TS petlji NIT mapa prenosi tokove do PLP-ova u podatkovnim komadima sustava prijenosa. Patent sadr·i jo® 14 patentnih zahtjeva.

Claims (15)

1. Postupak primanja emitiranog signala, postupak je prikladan za: primanje signala koji obuhvaća okvir signala, gdje okvir signala obuhvaća jedan ili više podatkovnih komada koji nose vod na fizičkom sloju (Physical Layer Pipe, PLP), i jedan ili više pilot simbola koji nose Sloj 1, L1, signalni podaci za podatkovne komade i pilot simboli su podijeljeni prema smjeru frekvencije u barem dva L1 bloka iste širine pojasa; dobivanje sloja 2, L2, informacije uključujući tablicu s mrežnim podacima (Network Information Table, NIT) iz okvira signala; dobivanje NIT uključujući identifikator PLP-a (PLP_id) i identifikator sustava prijenosa (transmission_system_id) iz dobivene L2 informacije; dobivanje PLP-a koji odgovara identifikatoru PLP-a i identifikatoru sustava prijenosa uključenog u NIT; i dobivanje prijenosnog toka (transport stream, TS) prema kojem je PLP mapiran, gdje deskriptor dostavnog sustava prijenosa uključujući identifikator PLP-a, identifikator sustava prijenosa i aktivno polje trajanja simbola ortogonalne modulacijske tehnike u frekvencijskoj domeni (OFDM) u TS petlji NIT mapa prenosi tokove do PLP-ova u podatkovnim komadima sustava prijenosa.
2. Postupak prema zahtjevu 1, gdje je vrijednost aktivnog OFDM polja trajanja simbola jedna od 448 µs na 4k brzih Fourierovih transformacija (FFT), mod za prijenosni sustav od 8 MHz širine pojasa i 448 x (8/6) µs na 4k FFT mod za prijenosni sustav od 6 MHz širine pojasa.
3. Uređaj prema zahtjevu 1 ili 2, gdje NIT obuhvaća identifikator prijenosnog toka i identifikator mreže.
4. Postupak prema bilo kojem od zahtjeva 1 do 3, gdje podatkovni komadi imaju arbitrarnu širinu pojasa u smjeru frekvencije u okviru signala.
5. Uređaj za primanje emitiranog signala, uređaj obuhvaća: sredstva za primanje signala koji obuhvaća okvir signala, gdje okvir signala obuhvaća jedan ili više podatkovnih komada koji nose PLP, i jedan ili više pilot simbola koji nose Sloj 1, L1, signalni podaci za podatkovne komade i pilot simboli su podijeljeni prema smjeru frekvencije u barem dva L1 bloka iste širine pojasa; sredstva (1803) za dobivanje NIT uključujući identifikator PLP-a (PLP_id) i identifikator sustava prijenosa (transmission_system_id) iz sloj 2, L2 informacije okvira signala, i dobivanje PLP-a koji odgovara identifikatoru PLP-a i identifikatoru sustava prijenosa uključenog u NIT; i sredstva (1804) za dobivanje prijenosnog toka prema kojem je PLP mapiran, gdje deskriptor dostavnog sustava prijenosa uključujući identifikator PLP-a, identifikator sustava prijenosa i aktivno OFDM polje trajanja simbola u TS petlji NIT mapa prenosi tokove do PLP-ova u podatkovnim komadima sustava prijenosa.
6. Uređaj prema zahtjevu 5, gdje je vrijednost aktivnog OFDM polja trajanja simbola jedna od 448 µs na 4k FFT, mod za prijenosni sustav od 8 MHz širine pojasa i 448 x (8/6) µs na 4k FFT mod za prijenosni sustav od 6 MHz širine pojasa.
7. Uređaj prema zahtjevu 5 ili 6, gdje NIT obuhvaća identifikator prijenosnog toka i identifikator mreže.
8. Uređaj prema bilo kojem od zahtjeva 5 do 7, gdje podatkovni komadi imaju arbitrarnu širinu pojasa u smjeru frekvencije u okviru signala.
9. Postupak odašiljanja emitiranog signala, postupak obuhvaća: građenje okvira signala koji obuhvaća jedan ili više podatkovnih komada koji nose PLP, i jedan ili više pilot simbola koji nose Sloj 1, L1, signalnih podataka za podatkovne komade, gdje su pilot simboli podijeljeni prema smjeru frekvencije u barem dva L1 bloka iste širine pojasa, i okvir signala obuhvaća sloj-2, L2 informaciju uključujući tablicu s mrežnim podacima (NIT) i ima identifikator PLP-a (PLP_id) i identifikator sustava prijenosa (transmission_system_id) koji odgovara prijenosnom toku, TS, u okviru signala; modulaciju okvira signala pomoću ortogonalne modulacijske tehnike u frekvencijskoj domeni (OFDM); i odašiljanje moduliranog okvira signala, gdje deskriptor dostavnog sustava prijenosa uključujući identifikator PLP-a, identifikator sustava prijenosa i aktivno OFDM polje trajanja simbola u TS petlji NIT mapa prenosi tokove do PLP-ova u podatkovnim komadima sustava prijenosa.
10. Postupak prema zahtjevu 9, gdje je vrijednost aktivnog OFDM polja trajanja simbola jedna od 448 µs na 4k brzih Fourierovih transformacija (FFT), mod za prijenosni sustav od 8 MHz širine pojasa i 448 x (8/6) µs na 4k FFT mod za prijenosni sustav od 6 MHz širine pojasa.
11. Postupak prema zahtjevu 9 ili 10, gdje NIT obuhvaća identifikator prijenosnog toka i identifikator mreže.
12. Postupak prema bilo kojem od zahtjeva 9 do 11, gdje podatkovni komadi imaju arbitrarnu širinu pojasa u smjeru frekvencije u okviru signala.
13. Uređaj za odašiljanje emitiranog signala, odašiljač obuhvaća: sredstva (1603) za građenje okvira signala koji obuhvaća jedan ili više podatkovnih komada koji nose PLP, i jedan ili više pilot simbola koji nose Sloj 1, L1, signalnih podataka za podatkovne komade, gdje su pilot simboli podijeljeni prema smjeru frekvencije u barem dva L1 bloka iste širine pojasa, i okvir signala obuhvaća sloj-2 informaciju uključujući tablicu s mrežnim podacima (NIT) i ima identifikator PLP-a (PLP_id) i identifikator sustava prijenosa (transmission_system_id) koji odgovara prijenosnom toku, TS, u okviru signala; i sredstva (1604) za modulaciju okvira signala pomoću ortogonalne modulacijske tehnike u frekvencijskoj domeni (OFDM), gdje deskriptor dostavnog sustava prijenosa uključujući identifikator PLP-a, identifikator sustava prijenosa i aktivno OFDM polje trajanja simbola u TS petlji NIT mapa prenosi tokove do PLP-ova u podatkovnim komadima sustava prijenosa.
14. Uređaj prema zahtjevu 13, gdje je vrijednost aktivnog OFDM polja trajanja simbola jedna od 448 µs na 4k brzih Fourierovih transformacija (FFT), mod za prijenosni sustav od 8 MHz širine pojasa i 448 x (8/6) µs na 4k FFT mod za prijenosni sustav od 6 MHz širine pojasa.
15. Uređaj prema zahtjevu 13 ili 14, gdje NIT obuhvaća identifikator prijenosnog toka i identifikator mreže.
HRP20120616AT 2008-12-11 2012-07-30 Postupak prijenosa i primanja signala te uređaj za prijenos i primanje signala HRP20120616T1 (hr)

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HRP20120616AT HRP20120616T1 (hr) 2008-12-11 2012-07-30 Postupak prijenosa i primanja signala te uređaj za prijenos i primanje signala
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EP (5) EP2458771A1 (hr)
CN (4) CN102246512B (hr)
AT (1) ATE554556T1 (hr)
DK (4) DK2200210T3 (hr)
ES (4) ES2386190T3 (hr)
HR (4) HRP20120581T1 (hr)
PL (4) PL2200210T3 (hr)
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CN102246484B (zh) 2014-12-03
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DK2200212T3 (da) 2012-08-27
SI2200211T1 (sl) 2012-10-30
PT2200212E (pt) 2012-08-17
HRP20120581T1 (hr) 2012-09-30
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EP2200211A3 (en) 2010-07-28
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