EA200802076A1 - Устройство и способ обработки данных - Google Patents
Устройство и способ обработки данныхInfo
- Publication number
- EA200802076A1 EA200802076A1 EA200802076A EA200802076A EA200802076A1 EA 200802076 A1 EA200802076 A1 EA 200802076A1 EA 200802076 A EA200802076 A EA 200802076A EA 200802076 A EA200802076 A EA 200802076A EA 200802076 A1 EA200802076 A1 EA 200802076A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- ofdm
- data
- subcarrier
- symbol
- shift register
- Prior art date
Links
- 238000003672 processing method Methods 0.000 title 1
- 230000005540 biological transmission Effects 0.000 abstract 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2742—Irregular interleaver wherein the permutation pattern is not obtained by a computation rule, e.g. interleaver based on random generators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2739—Permutation polynomial interleaver, e.g. quadratic permutation polynomial [QPP] interleaver and quadratic congruence interleaver
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2782—Interleaver implementations, which reduce the amount of required interleaving memory
- H03M13/2785—Interleaver using in-place interleaving, i.e. writing to and reading from the memory is performed at the same memory location
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2789—Interleaver providing variable interleaving, e.g. variable block sizes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6522—Intended application, e.g. transmission or communication standard
- H03M13/6552—DVB-T2
-
- 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
- H04L27/26—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
-
- 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/58—Random or pseudo-random number generators
- G06F7/582—Pseudo-random number generators
- G06F7/584—Pseudo-random number generators using finite field arithmetic, e.g. using a linear feedback shift register
-
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Mathematical Physics (AREA)
- Error Detection And Correction (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Television Systems (AREA)
Abstract
Устройство обработки данных отображает входные символы, предназначенные для передачи, в заданное количество сигналов поднесущей ортогонально мультиплексированного с частотным разделением (ОМЧР) символа. Процессор обработки данных включает в себя запоминающее устройство перемежителя, которое считывает заданное количество символов данных для отображения на сигналы поднесущей ОМЧР. Запоминающее устройство перемежителя считывает символы данных на поднесущие ОМЧР для выполнения отображения, причем считывание из запоминающего устройства выполняют в другом порядке, чем считывание в запоминающее устройство, порядок определяют из набора адресов, в результате чего символы данных перемежают на сигналы поднесущей. Набор адресов генерируют из генератора адреса, который содержит линейный сдвиговый регистр с обратной связью и схему перестановок. Линейный сдвиговый регистр с обратной связью имеет десять каскадов регистра с полиномом генератора для линейного сдвигового регистра с обратной связью R'[9] =R'[0] ⊕R '[3], и код перестановки формирует с дополнительньм битом адрес из одиннадцати битов. Код перестановки изменяется от одного символа ОМЧР до другого, в результате, обеспечивая улучшение перемежения символов данных для режима работы 2k системы модулированной ОМЧР, соответствующей стандарту Цифрового телевизионного вещания (ЦТВ), такому как стандарт Цифрового наземного вещания 2 (ЦНТВ2). Это связано с тем, что снижается вероятность того, что последовательные биты данных, которые расположены близко друг к другу по порядку во входном потоке данных, будут отображены на одну и ту же поднесущую символа ОМЧР.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0721269.9A GB2454193B (en) | 2007-10-30 | 2007-10-30 | Data processing apparatus and method |
GB0722645A GB2455071A (en) | 2007-10-30 | 2007-11-19 | Memory efficient data symbol interleaver which adaptively applies odd only, or odd and even interleaving processes, depending on OFDM mode |
GB0722728A GB2454267A (en) | 2007-10-30 | 2007-11-20 | DVB interleaver for odd/even symbol streams splits memory for sub-carrier number up to half maximum/has common memory and immediate location reuse otherwise |
Publications (2)
Publication Number | Publication Date |
---|---|
EA200802076A1 true EA200802076A1 (ru) | 2009-06-30 |
EA014414B1 EA014414B1 (ru) | 2010-12-30 |
Family
ID=38858160
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA200802080A EA014122B1 (ru) | 2007-10-30 | 2008-10-29 | Устройство и способ обработки данных |
EA200802076A EA014414B1 (ru) | 2007-10-30 | 2008-10-29 | Устройство и способ обработки данных |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA200802080A EA014122B1 (ru) | 2007-10-30 | 2008-10-29 | Устройство и способ обработки данных |
Country Status (15)
Country | Link |
---|---|
US (6) | US8199802B2 (ru) |
EP (27) | EP3582399B1 (ru) |
JP (3) | JP5253093B2 (ru) |
KR (6) | KR101463624B1 (ru) |
CN (4) | CN101425994B (ru) |
AU (3) | AU2008230048B2 (ru) |
DK (3) | DK2333967T3 (ru) |
EA (2) | EA014122B1 (ru) |
ES (11) | ES2882563T3 (ru) |
GB (14) | GB2454193B (ru) |
PL (10) | PL2056473T3 (ru) |
PT (1) | PT2333967E (ru) |
TW (6) | TWI461004B (ru) |
UA (2) | UA101145C2 (ru) |
ZA (2) | ZA200808858B (ru) |
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