HRP20110584T1 - Uređaj i postupak prijenosa i prijama ofdm signala - Google Patents

Uređaj i postupak prijenosa i prijama ofdm signala Download PDF

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HRP20110584T1
HRP20110584T1 HR20110584T HRP20110584T HRP20110584T1 HR P20110584 T1 HRP20110584 T1 HR P20110584T1 HR 20110584 T HR20110584 T HR 20110584T HR P20110584 T HRP20110584 T HR P20110584T HR P20110584 T1 HRP20110584 T1 HR P20110584T1
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information
bits
symbol
error correction
signal
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Suk Ko Woo
Chul Moon Sang
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Lg Electronics Inc.
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • 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
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Transmission System (AREA)

Abstract

Postupak za prijenos signala, naznačen time što postupak obuhvaća: (S110) servisnog toka prema postupku kodiranja za ispravak pogrešaka; bitove za preplitanje (S120) za kodiranje sa ispravak pogrešaka servisnog toka; demultipleksiranje (S130) bitova za preplitanje u broj podtokova, pri čemu je redoslijed izlaženja bitova u podtokove pomoću koraka demultipleksiranja drugačiji od redoslijeda bitova za preplitanje; mapiranje demultipleksiranih podtokova za najmanje jedan simbol; sastavljanje signalnog okvira (S150) imajući mapiranje za najmanje jedan simbol; moduliranje signalnog okvira (S160) pomoću metode multipleksiranja s ortogonalnom podjelom frekvencija OFDM i prijenos signala uključujući modulirani signalni okvir putem najmanje jednog frekvencijskog opsega, karakteriziran pri čemu signal uključuje prvu informaciju i drugu informaciju, druga informacija ima informaciju postupka kodiranja za ispravak pogrešaka i prva informacija ima informaciju za indiciranjem brze Fourierove transformacije, FFT, veličine korištene za OFDM simbole druge informacije. Patent sadrži još 14 patentnih zahtjeva.

Description

UREĐAJ I POSTUPAK PRIJENOSA I PRIJAMA OFDM SIGNALA

Claims (15)

1. Postupak za prijenos signala, naznačen time što postupak obuhvaća: kodiranje za ispravak pogrešaka (S110) servisnog toka prema postupku kodiranja za ispravak pogrešaka; bitove za preplitanje (S120) za kodiranje sa ispravak pogrešaka servisnog toka; demultipleksiranje (S130) bitova za preplitanje u broj podtokova, pri čemu je redoslijed izlaženja bitova u podtokove pomoću koraka demultipleksiranja drugačiji od redoslijeda bitova za preplitanje; mapiranje demultipleksiranih podtokova za najmanje jedan simbol; sastavljanje signalnog okvira (S150) imajući mapiranje za najmanje jedan simbol; moduliranje signalnog okvira (S160) pomoću metode multipleksiranja s ortogonalnom podjelom frekvencija OFDM i prijenos signala uključujući modulirani signalni okvir putem najmanje jednog frekvencijskog opsega, karakteriziran pri čemu signal uključuje prvu informaciju i drugu informaciju, druga informacija ima informaciju postupka kodiranja za ispravak pogrešaka i prva informacija ima informaciju za indiciranjem brze Fourierove transformacije, FFT, veličine korištene za OFDM simbole druge informacije.
2. Postupak prema patentnom zahtjevu 1, naznačen time što se korak mapiranja provodi postupkom mapiranja simbola koje je jedno od QPSK, 16-QAM, 64-QAM i / ili 256-QAM.
3. Postupak prema patentnom zahtjevu 1 ili 2, naznačen time što se korak demultipleksiranja provodi prema kodnom omjeru postupkom kodiranja za ispravak pogrešaka u drugoj informaciji.
4. Postupak prema patentnom zahtjevu 1 do 3, naznačen time što je mapiranje bitova u simbol najmanje značajnog bita LSB ili više značajnog bita MSB utvrđeno pomoću demultipleksiranja bitova za preplitanje prema postupku kodiranja za ispravak pogrešaka u drugoj informaciji.
5. Postupak za prijam signala, naznačen time što postupak obuhvaća: prijam (S210) signala uključujući signalni okvir od najmanje jednog frekvencijskog opsega; demodulaciju (S220) signalnog okvira u prijamnom signalu pomoću metode multipleksiranja s ortogonalnom podjelom frekvencija OFDM, pri čemu signalni okvir uključuje simbole za najmanje jedan servis, prvu informaciju i drugu informaciju, pri čemu druga informacija ima informaciju postupka kodiranja za ispravak pogrešaka, a prva informacija ima informaciju za indiciranjem brze Fourierove transformacije, FFT, veličine korištene za OFDM simbole druge informacije; stjecanje najmanje jednog simbola navedenog najmanje jednog servisa od signalnog okvira; demapiranje (S230) stečenog najmanje jednog simbola u bitovima u broju podtokova; multipleksiranje (S240) bitova u podtokovima za izlazni tok bita, pri čemu je redoslijed izlaženja bitova u tok bitove pomoću koraka multipleksiranja drugačiji od redoslijeda ulaženja bitova u tok bitove za korak multipleksiranja; rasplitanje (S250) multipleksiranih bitova; i dekodiranje za ispravak pogrešaka (S260) bitova za rasplitanje.
6. Postupak prema patentnom zahtjevu 5, naznačen time što se korak demapiranja provodi postupkom demapiranja simbola koje je jedno od QPSK, 16-QAM, 64-QAM i / ili 256-QAM.
7. Postupak prema patentnom zahtjevu 5 ili 6, naznačen time što se korak multipleksiranja provodi prema kodnom omjeru postupkom kodiranja za ispravak pogrešaka u drugoj informaciji.
8. Uređaj za prijenos signala, naznačen time što uređaj obuhvaća: koder za ispravak pogrešaka (121; 125) za kodiranje za ispravak pogrešaka servisnog toka prema postupku kodiranja sa ispravak pogrešaka; preplitač bitova za preplitanje bitova (123; 127) za kodiranje za ispravak pogrešaka servisnog toka; demultipleksor (1313a; 1313b) za demultipleksiranje bitova za preplitanje u broj podtokova; pri čemu je redoslijed izlaženja bitova u podtokove pomoću demultipleksora (1313a; 1313b) drugačiji od redoslijeda bitova za preplitanje; maper simbola (131; 131 b) za mapiranje demultipleksiranih bitova u najmanje jedan simbol; signalni okvir sastavljača (130) za sastavljanje signalnog okvira mapiranjem najmanje jednog simbola; modulator (150a; 150b) za moduliranje signalnog okvira pomoću metode multipleksiranja s ortogonalnom podjelom frekvencija OFDM i odašiljač (160a; 160b) za prijenos signala uključujući modulirani signal putem najmanje jednog frekvencijskog opsega, karakteriziran pri čemu signal uključuje prvu informaciju i drugu informaciju, druga informacija ima informaciju postupka kodiranja za ispravak pogrešaka i prva informacija ima informaciju za indiciranjem brze Fourierove transformacije, FFT, veličine korištene za OFDM simbole druge informacije.
9. Uređaj prema patentnom zahtjevu 8, naznačen time što je maper simbola konfiguriran za provođenje mapiranja simbola postupkom mapiranja simbola koje je jedno od QPSK, 16-QAM, 64-QAM i / ili 256-QAM.
10. Uređaj prema patentnom zahtjevu 8 ili 9, naznačen time što je demultipleksor (1313a; 1313b) konfiguriran za provođenje demultipleksiranja na bitove za preplitanje prema kodnom omjeru postupkom kodiranja za ispravak pogrešaka u drugoj informaciji.
11. Uređaj prema patentnom zahtjevu 8 do 10, naznačen time što je mapiranje bitova u simbol najmanje značajnog bita LSB ili više značajnog bita MSB utvrđeno pomoću demultipleksiranja bitova za preplitanje prema postupku kodiranja za ispravak pogrešaka u drugoj informaciji.
12. Uređaj za prijam signala, naznačen time što uređaj obuhvaća: prijamnik (210a; 210b) za prijam signala uključujući signalni okvir od najmanje jednog frekvencijskog opsega; demodulator (220a; 220b) za demodulaciju signalnog okvira u primljenom signalu pomoću metode multipleksiranja s ortogonalnom podjelom frekvencija OFDM, pri čemu signalni okvir uključuje simbole za najmanje jedan servis, prvu informaciju i drugu informaciju, pri čemu druga informacija ima informaciju postupka kodiranja za ispravak pogrešaka i prva informacija ima informaciju za indiciranjem brze Fourierove transformacije, FFT, veličine korištene za OFDM simbole druge informacije; analizator signalnog okvira (240) za dobivanje najmanje jednog simbola od najmanje jednog servisa od signalnog okvira; demaper simbola (247a; 247b) za demapiranje svakog dobivenog najmanje jednog simbola u bitove u broju podtokova; multipleksor (2475a; 2475b) za multipleksiranje bitova u podtokove za izlazni tok bita, pri čemu je redoslijed izlaženja bitova u tok bitove pomoću multipleksora (2475a; 2475b) drugačiji od redoslijeda ulaženja bitova u tok bitove multipleksora (2475a; 2475b); rasplitač bitova (2476a; 2476b) za rasplitanje multipleksiranih bitova; i dekoder za ispravak pogrešaka (253) za dekodiranje za ispravak pogrešaka bitova za rasplitanje.
13. Uređaj prema patentnom zahtjevu 12, naznačen time što je demaper simbola konfiguriran za provođenje demapiranja na simbol pomoću postupka demapiranja simbola koje je jedno od QPSK, 16-QAM, 64-QAM i / ili 256-QAM.
14. Uređaj prema patentnom zahtjevu 12 ili 13, naznačen time što je multipleksor (2475a; 2475b) konfiguriran za provođenje multipleksiranja na bitovima prema postupku kodiranja za ispravak pogrešaka u drugoj informaciji.
15. Uređaj prema patentnom zahtjevu 12, naznačen time što postupak kodiranja za ispravak pogrešaka sadrži informacije koje su odgovarajuće kodnom omjeru.
HR20110584T 2007-09-28 2011-08-04 Uređaj i postupak prijenosa i prijama ofdm signala HRP20110584T1 (hr)

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US97872507P 2007-10-09 2007-10-09
US98079907P 2007-10-18 2007-10-18

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EP (4) EP2139142B1 (hr)
KR (1) KR101084154B1 (hr)
CN (1) CN101874393B (hr)
AT (2) ATE539511T1 (hr)
DK (4) DK2043291T3 (hr)
ES (4) ES2409107T3 (hr)
HR (1) HRP20110584T1 (hr)
PL (4) PL2242198T3 (hr)
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