CN1463162A - Error correcting coding/decoding device in digital broadcasting system, and its method - Google Patents
Error correcting coding/decoding device in digital broadcasting system, and its method Download PDFInfo
- Publication number
- CN1463162A CN1463162A CN02144054A CN02144054A CN1463162A CN 1463162 A CN1463162 A CN 1463162A CN 02144054 A CN02144054 A CN 02144054A CN 02144054 A CN02144054 A CN 02144054A CN 1463162 A CN1463162 A CN 1463162A
- Authority
- CN
- China
- Prior art keywords
- data
- encoder
- error correction
- block
- decoding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H04L1/0057—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
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
Abstract
An error correcting coding apparatus of a digital broadcasting system is provided to restore data received in a poor receiving environment stably and correctly. An error correcting coding apparatus of a digital broadcasting system includes a scrambler, the first and second RS encoders, an interleaver, and a bit interleaver. The scrambler mixes TS stream with a pseudo random binary sequence to remove correlation of input data. The first RS encoder encodes the correlation-removed data in unit of block for error correction. The interleaver rearranges the encoded data. The second RS encoder re-codes the rearranged data in unit of block for error correction. The bit interleaver disperses the re-coded data in unit of bit. The error correcting coding apparatus further includes a symbol mapper that carries out symbol-mapping of the dispersed data in order to transmit the data, and a modulator for modulating the symbol-mapped data.
Description
Technical field
The present invention relates to a kind of apparatus and method that are used at the correction coding/decoding of digit broadcasting system, and relate in particular to the error correction coding and/or the decoding that are used for the broadcast data that will launch, make to be in the poor reception environment, can to stablize a kind of apparatus and method of reception at receiving terminal at receiving terminal especially as when being that move or portable at receiving terminal.
Background technology
Usually, the broadcast system of high definition TV (HDTV) can be divided into roughly image encoding unit and image modulation unit.The digital data compression to 15 of about 1 gigabit/sec (Gbps) that described image encoding unit will be imported from the high-definition image source is to the data of 18 mbit/(Mbps).Described image modulation unit arrives receiving terminal by the numerical data of finite bandwidth channels transmit tens mbit/of about 6 to 8 megahertzes (MHz).HDTV has used a kind of terrestrial broadcasting method that is utilized as the very high frequency(VHF)/hyperfrequency (VHF/UHF) of television broadcasting purpose distribution.
Adopted OFDM (OFDM) method in Europe, increased the transfer rate of every bandwidth and the digital tv ground broadcasting of jamproof benefit as obtaining picture as one of Ditital modulation method.
Usually, the OFDM reflector that utilizes Domain Synchronous (TDS) to launch ofdm signal will be transformed to the data in the time domain according to the ofdm signal that the frequency spectrum that a reservation service is provided for predetermined frequency band produces.Protection GI is at interval inserted in the ofdm signal front of this OFDM reflector in being formed at time domain, being suppressed at interference between signals, and inserts synchronizing information before the GI of this protection interval, and then launches this ofdm signal.
The mistake that produces during the transfer of data of error correction coding (ECC) correction in digital communication.Mainly there are two types of block encoding and convolutional encodings for ECC.
Described block encoding is carried out the data Code And Decode with code block.Described convolutional encoding is carried out digital coding by utilizing chain of registers to previous and current data.Reed-solomon (reed-solomon) (RS) sign indicating number is the coding method of general known block encoding, and it has unusual robustness to burst error.The RS sign indicating number is made up of the message word that will launch and the parity check word that is used for error correction.
Simultaneously, Viterbi (Viterbi) algorithm is the coding/decoding method of widely used convolution code.According to the Viterbi algorithm, complexity is index according to constraint length K to be increased.And about the value of K, 7 or 9 is the most widely used at present.
Fig. 1 illustrates the block diagram that is used for a kind of traditional encoder for correcting that the reflector at digit broadcasting system uses.
This encoder for correcting comprises scrambler 10, reed-solomon (RS) encoder 12, convolutional deinterleaver 14, convolution coder 16, interleaver 18, symbol mapper 20 and modulator 22.
Transmission stream and pseudo-random binary sequence that scrambler 10 mixes MPEG-2 (motion image expert group 2) form are to remove the correlation of described input signal thus.
12 pairs of RS encoders are input to the data of this RS encoder and encode to proofread and correct the mistake in transmission after scrambler 10.
In order to spread this burst error, the interleaver 18 described data that interweave again.
Problem is, utilizes convolution coder 16 as inner encoder to be difficult to fully to recover the signal that is received, especially when receiving terminal is in the poor reception environment, as receiving terminal be that move or portable time.
Because convolution coder 16 seriously is unsuitable for handling burst error, it even can not carry out minimum error correction in the poor reception environment if be placed on.
Summary of the invention
Thereby, the purpose of this invention is to provide and be used in the error correction coding of digit broadcasting system and/or a kind of apparatus and method of decoding, make to be in the poor reception environment at receiving terminal especially, as being on receiving terminal, can stablize in that move or portable and Data Receiving accurately at receiving terminal.
Above-mentioned purpose is by providing a kind of encoder for correcting that is used for the mistake that produces between digit broadcasting system is used to proofread and correct transmission period at digital broadcast data to realize, described encoder for correcting comprises: scrambler is used for by mixing the scramble that pseudo-random binary sequence is removed the input correlation of data at transmission stream (TS); The one reed-solomon (RS) encoder is used for being the described data of error correction coding after described data are by scramble; Convolutional deinterleaver, data through a RS encoder encodes are used to interweave; Block-based encoder, being used for based on piece is the described interleaving data of error correction recompile; And interleaver, described block-based coded data is used for interweaving again.
Preferably, encoder for correcting of the present invention also comprises symbol mapper, is used to shine upon the data that interweave, and is used for transfer of data.
Preferably, encoder for correcting of the present invention also comprises modulator, is used for carry out the modulation that is suitable for transmitting in the symbol mapper mapped data.
Preferably, be RS encoder or piece turbo (speed code) encoder according to block-based encoder of the present invention.
According to a second aspect of the invention, be provided at a kind of error correction/encoding method that uses encoder for correcting in the digit broadcasting system, be used to proofread and correct the mistake that produces between the digital broadcast data transmission period, described method comprises: by mix the scrambling step that pseudo-random binary sequence is removed the input correlation of data in transmitting stream (TS); After data process scramble is a reed-solomon (RS) coding step of the described data of error correction coding; Interweave through the convolutional interleave step of RS coded data; Be the block-based coding step of error correction based on the described interleaving data of piece recompile; And the described recompile data that interweave again in the step that interweaves.
Preferably, comprise also that according to error correction/encoding method of the present invention the data that interweave of mapping are used for the sign map step of transfer of data.
Preferably, according to error correction/encoding method of the present invention also comprise in symbol mapper mapped data carry out the modulation step of the modulation be suitable for transmitting.
Preferably, block-based coding step according to the present invention is carried out RS coding or piece turbo coding.
According to a third aspect of the invention we, provide a kind of error correction decoding device in digit broadcasting system, be used to proofread and correct the mistake that produces at the digital broadcast data reception period, described error correction decoding device comprises: demodulator is used for the demodulation received signal; Symbol removes mapper (demapper), is used for extracting data based on bit from restituted signal; Interior deinterleaver is used for and will goes the data of mapper to rearrange stream into the initialize signal order from described symbol, so that the burst error of diffusion received signal; Block-based decoder is used for based on the deinterleaved data of piece ground decoding from deinterleaver in described; Convolutional deinterleaver is used for deinterleaving to carrying out convolution from the block-based decoded data of described block-based decoder; The 2nd RS decoder is used for the data that the RS decoding is deinterleaved by described convolutional deinterleaver; And remove scrambler, be used for from removing pseudo-random binary sequence (PRBS) from the RS decoded data of described the 2nd RS decoder to recover initial TS stream.
Preferably, block-based decoder according to the present invention is RS decoder or piece turbo decoder.
According to a forth aspect of the invention, be provided at a kind of error correction decoding method of using the error correction decoding device in the digit broadcasting system, be used to proofread and correct the mistake that produces between the digital broadcast data transmission period, described method comprises: the demodulation step that is used for demodulated received signal; The symbol that extracts data based on bit from described restituted signal goes mapping step; To go the mapping (enum) data that goes of mapping step to rearrange stream from described symbol into the initialize signal order, so as the burst error of diffusion received signal in the step that deinterleaves; Based in described, the deinterleave block-based decoding step of the data that deinterleave in the step of piece ground decoding; To carrying out convolution that convolution the deinterleaves step that deinterleaves based on the data of piece ground decoding in the described block-based decoding step; The 2nd RS decoding step of the data that the RS decoding deinterleaves in described convolution deinterleaves step; And from the RS decoded data described the 2nd RS decoding step, remove pseudo-random binary sequence (PRBS) to recover the scrambling step of going of initial TS stream.
Preferably, block-based decoding step according to the present invention is carried out RS decoding or piece turbo decoding.
Description of drawings
By the preferred embodiments of the present invention are described with reference to the drawings, above-mentioned and other purposes of the present invention and characteristics will become apparent, wherein:
Fig. 1 is the block diagram of a kind of traditional encoder for correcting of using in the reflector of digit broadcasting system;
Fig. 2 is the block diagram of a kind of encoder for correcting of digit broadcasting system according to a preferred embodiment of the invention;
Fig. 3 is the block diagram of a kind of encoder for correcting of digit broadcasting system according to another preferred embodiment of the invention;
Fig. 4 is the block diagram according to a kind of error correction decoding device of digit broadcasting system of the present invention;
Fig. 5 illustrates the flow chart that utilizes a kind of error correction method of encoder for correcting according to of the present invention;
Fig. 6 illustrates the flow chart that utilizes a kind of error correction method of error correction decoding device according to of the present invention.
Embodiment
Hereinafter, with preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.
Fig. 2 is the block diagram that a kind of encoder for correcting of digit broadcasting system according to a preferred embodiment of the invention is shown.
This encoder for correcting according to the present invention comprises: scrambler 100, a RS encoder 120, convolutional deinterleaver 140, the 2nd RS encoder 160, interleaver 180, symbol mapper 200 and modulator 220.
Transmission stream and pseudo-random binary sequence that scrambler 100 mixes the MPEG-2 form are to remove the correlation of described input signal thus.
The one RS encoder 120 is encoded described data with error recovery in described data through after the scrambler 100.
The convolutional deinterleaver 140 that plays the external interleaver function interweaves from the data of a RS encoder 120.Described convolutional deinterleaver 140 can be proofreaied and correct the mistake of the error correcting capability that surpasses a RS encoder 120.
The 2nd RS encoder 160 that has played the interleaver function based on the described data of piece ground recompile to proofread and correct the mistake of the data that interweave at convolutional deinterleaver 140 places.
Note, compare, used the RS encoder to replace the convolution coder of conduct based on the encoding device of bit with the traditional encoder for correcting that in the reflector of digit broadcasting system, adopts.As mentioned above, convolutional encoding seriously is unsuitable for handling recurrent burst error in mobile communication environment.The RS encoding scheme is based on the encoding scheme of piece, and it can provide error correcting capability to receiver, is the robustness (robust) to the burst error in the mobile communication application thus.In the situation of convolutional encoding, perhaps correction decoder is unsuccessful when mistake occurring on to several bits of transmission data.Yet, utilize block-based coding, but guaranteed even also continuous data transmission during several bit mistake in.Thus, the very big advantage of block-based coding is that decoding device to the receiving terminal in mobile communication environment provides powerful burst error correction ability.
Interleaver 180 is based on symbol and/or interweave again bit by bit from the RS coded data of the 2nd RS encoder 160, so that the diffusion burst error.
For the data to each sign map at symbol mapper 200 places, modulator 220 is carried out the modulation such as residual sideband (VSB) and Coded Orthogonal Frequency Division Multiplexing (COFDM) (COFDM) that is suitable for the transfer of data in digital broadcasting.
Fig. 3 is the block diagram that a kind of encoder for correcting of digit broadcasting system according to another preferred embodiment of the invention is shown.In the encoder for correcting of Fig. 3, give to carry out with reference to figure 2 aforesaid identical functions as the parts of identical numbering in Fig. 2.Thereby, will omit the description of same parts.
As shown in Figure 3, the function identical functions of the RS encoder 120 of RS encoder 120 execution of encoder for correcting and Fig. 2.
In the encoder for correcting of Fig. 3, replaced the 2nd RS encoder 160 of Fig. 2 with piece turbo encoder 240.Here, piece turbo encoder 240 still is a kind of block-based encoder, and it has robustness to burst error.Thus, the 2nd RS encoder 160 that utilizes the piece turbo encoder 240 of Fig. 3 to replace Fig. 2 also can provide with the preferred embodiment of Fig. 2 and obtain identical effect.
Thereby, for inner encoder, can select to use the 2nd RS encoder 160 or piece turbo encoder 240, guarantee maximum error correcting capability.Correspondingly, even in the reception environment of difference, when being that move or portable when receiving terminal, the Data Receiving of digital broadcast signal and error correction also can be carried out reliably.
Fig. 4 is the block diagram that the error correction decoding device of digit broadcasting system according to a preferred embodiment of the invention is shown.
This error correction decoding device according to a preferred embodiment of the invention comprises: demodulator 300, symbol remove mapper 320, interior deinterleaver 340, a RS decoder 360, convolutional deinterleaver 380, the 2nd RS decoder 400 and remove scrambler 420.
Error correction decoding device shown in Figure 4 is carried out the opposite decode operation of doing with encoder for correcting shown in Figure 2 of operation.In order to understand notion of the present invention better, contact Fig. 2 is described the error correction decoding device of Fig. 4.
Symbol goes mapper 320 to extract data bit by bit from described restituted signal, and its operation is corresponding to the inverse operation of the symbol mapper 200 of Fig. 2.
Interior deinterleaver 340 by reverse execution graph 2 based on the interweaving again of the data of symbol, data are rearranged stream into the initialize signal order before interleaver 180.At this moment, obtained the benefit of the burst error of diffusion received signal.
As a RS decoder 360 of block-based decoder based on the decoding of piece ground corresponding to the 2nd RS encoder 160 of Fig. 2 deinterleaved data based on piece ground coded data.During this was handled, the mistake in all received signals in the error correcting capability of this decoder all obtained proofreading and correct.The mistake of error correcting capability that exceeds this decoder is in this grade correction, and is sent to next piece.
The data that 400 decodings of the 2nd RS decoder are deinterleaved by convolutional deinterleaver 380, these data are corresponding to a RS encoder 120 place's coded datas at Fig. 2.
The pseudo-random binary sequence (PRBS) of going scrambler 420 to remove from the RS decoded data to mix with TS stream at the scrambler 100 of Fig. 2 flows to recover initial TS.
By guaranteeing minimum error correcting capability such as the inner demoder of RS decoder or piece turbo decoder via utilizing, the reception and the error correction of broadcast singal are carried out reliably, and thus, though this signal the difference reception environment, such as when receiving terminal is that move or portable, also being recovered.
Simultaneously, a RS decoder 360 can replace with piece turbo decoder (it also is based on the decoder of piece).In this way, the error correction decoding device that has piece turbo decoder also can be handled the code signal of Fig. 3, to recover initial TS stream.Even and play a part in the situation of inner demoder at piece turbo decoder, do not exist in the degeneration on the efficient yet.
Fig. 5 illustrates the flow chart of utilization according to a kind of error correction method of encoder for correcting of the present invention.
At first, scrambler 100 is removed the correlation (step S100) of input signal by mix PRBS in the TS of the MPEG-2 form that arrives stream, so that remove the correlation between the described input signal.
The one RS encoder 120RS coding has passed through the data (step S120) of scrambler 100.
140 pairs of convolutional deinterleaver are carried out convolutional interleave (step S140) through the RS encoder RS of a place coded data.By the convolutional interleave of convolutional deinterleaver 140, the mistake of error correcting capability that exceeds the decoding of a RS encoder 120 can access correction, because should mistake have been spread.
The 2nd RS encoder 160 as block-based encoder is coded in the data (step S160) that convolutional deinterleaver 140 places interweave for error correction RS.
In order to spread burst error, interleaver 180 is carried out and is interweaved, interweaves again at the 2nd RS encoder 160 places through RS coded data (step S180).
For the data that interweave again at interleaver 180 places, symbol mapper 200 is carried out such as quadrature amplitude modulation (QAM), that is, and and the sign map of 16QAM, 64QAM, 256QAM and QPSK (step S200).
For in symbol mapper 200 place's mapped data, modulator 220 is carried out the transfer of data (step S220) that is used for digital broadcasting such as the modulation by the VSB modulation of ATSC (U.S.'s high definition digital television standard) or DVB-T (European digital television standard) system specifications appointment or COFDM.
Here, as another example, in step S160, can use piece turbo encoder 240 to replace the 2nd RS encoder 160 and remove to carry out block-based coding, this can obtain identical effect equally.
Fig. 6 illustrates the flow chart of utilization according to a kind of error correction method of error correction decoding device of the present invention.To this error correction decoding operation be described with reference to figure 4.
At first, demodulator 300 demodulation are at the signal (step S300) of modulator 220 places of Fig. 2 modulation.
Then, symbol goes mapper 320 to extract data (step S310) bit by bit from the signal of demodulation among step S300.
Then, interior deinterleaver 340 is by symbol and/or deinterleave bit by bit and rearrange the stream (step S320) of data for initialize signal order before interleaver 180.At this moment, obtained the benefit of the burst error of diffusion received signal.
Then, in step S320, block-based decoder, promptly, the one RS decoder 360 or piece turbo decoder, the data (step S330) that decoding deinterleaves based on piece ground make that all mistakes in received signal in the error correcting capability of this decoder obtain proofreading and correct.
Then, 380 pairs of convolutional deinterleaver are carried out convolution deinterleave (step S340) from the block-based decoded datas of step S330.By such work, the mistake that does not obtain proofreading and correct in step S330 is spread.
Then, the data (step S350) that in step S340, deinterleave of the 2nd RS decoder 400RS decoding.
At last, go scrambler 420 from data, to remove pseudo-random binary sequence (PRBS) to recover flowing (step S360) with the initial TS that TS stream mixes at the scrambler 100 of Fig. 2 through the RS decoding.
From more than, according to the present invention,, guaranteed minimum error correcting capability by using inner encoder such as RS encoder or piece turbo decoder.Thereby even be in the poor reception environment at receiving terminal, for example, when receiving terminal was that move or portable, the reception and the error correction of digital broadcast signal were also carried out reliably.
In addition, owing to guarantee minimum error correcting capability by using such as the inner encoder of RS encoder or piece turbo encoder, even be in the poor reception environment at receiving terminal, such as at receiving terminal be that move or portable in, the reception of digital broadcast signal and error correction also can be carried out reliably.
Though described the preferred embodiments of the present invention, yet one of ordinary skill in the art will should be appreciated that, the invention is not restricted to described preferred embodiment, and in as the spirit and scope of the invention, can carry out variations and modifications by the claims definition.
Claims (20)
1. the encoder for correcting in digit broadcasting system is used to proofread and correct the mistake that produces between the transmission period of digital broadcast data, and described encoder for correcting comprises:
Scrambler is used for carrying out scramble by mixing pseudo-random binary sequence at transmission stream (TS), is used to remove the input correlation of data;
The one reed-solomon (RS) encoder is used in described data through being the described data of error correction coding after the scramble;
Convolutional deinterleaver is used to interweave through the described data of a described RS encoder encodes;
Block-based encoder is used for being used for error correction based on the described interleaving data of piece ground recompile; And
Interleaver is used for based on symbol and/or than the described block-based coded data that interweaves specially again.
2. encoder for correcting according to claim 1 also comprises:
Symbol mapper is used to shine upon the data that interweave, and is used for transfer of data.
3. encoder for correcting according to claim 2 also comprises:
Modulator is used for carry out the modulation that is suitable for transmitting in described symbol mapper mapped data.
4. according to the described encoder for correcting of arbitrary claim in the claim formerly, wherein said block-based encoder is the RS encoder.
5. according to the described encoder for correcting of arbitrary claim in the claim 1 to 3, wherein said block-based encoder is a piece turbo encoder.
6. encoder for correcting according to claim 3, wherein the modulation of carrying out at described modulator place comprises one of residual sideband (VSB) modulation and Coded Orthogonal Frequency Division Multiplexing (COFDM) (COFDM) modulation at least.
7. encoder for correcting according to claim 2, wherein the described sign map of carrying out at described symbol mapper place comprises one of 16 quadrature amplitude modulation (QAM), 64QAM, 256QAM and quarternary phase-shift keying (QPSK) (QPSK).
8. an error correction/encoding method that utilizes encoder for correcting in digit broadcasting system is used to proofread and correct the mistake that produces between the transmission period of digital broadcast data, and described method comprises:
By in transmitting stream (TS), mixing the scrambling step that pseudo-random binary sequence is removed the input correlation of data;
In data through being an encode reed-solomon (RS) coding step of described data of error correction after the scramble;
Described convolutional interleave step through the RS coded data interweaves;
Be the block-based coding step of error correction based on the described interleaving data of piece ground recompile; And
Based on symbol and/or than the step that interweaves in the described recompile data that interweave specially again.
9. error correction/encoding method according to claim 8 also comprises: based on symbol and/or than the sign map step of specially shining upon described interleaving data.
10. error correction/encoding method according to claim 9 also comprises: the modulation step of mapped data in described symbol mapper being carried out the modulation that is suitable for transmitting.
11. the described error correction/encoding method of arbitrary claim in 10 according to Claim 8, wherein said block-based coding step is carried out the RS coding.
12. the described error correction/encoding method of arbitrary claim in 10 according to Claim 8, wherein said block-based coding step execution block turbo coding.
13. error correction/encoding method according to claim 10, wherein the described modulation of carrying out in described modulation step comprises one of residual sideband (VSB) modulation and Coded Orthogonal Frequency Division Multiplexing (COFDM) (COFDM) modulation at least.
14. error correction/encoding method according to claim 9, wherein the described sign map of carrying out in described sign map step comprises one of 16 quadrature amplitude modulation (QAM), 64QAM, 256QAM and quarternary phase-shift keying (QPSK) (QPSK).
15. the error correction decoding device in digit broadcasting system is used to proofread and correct the mistake that produces between the transmission period of digital broadcast data, described error correction decoding device comprises:
Demodulator is used for the demodulation received signal;
Symbol removes mapper, is used for based on than specially extracting data from described restituted signal;
Interior deinterleaver is used to rearrange that to go the data of mapper from described symbol be the stream of initialize signal order, so that spread the burst error of described received signal;
Block-based decoder is used for based on the deinterleaved data of piece ground decoding from deinterleaver in described;
Convolutional deinterleaver is used for deinterleaving to carrying out convolution from the block-based decoded data of described block-based decoder;
The 2nd RS decoder is used for the described data that the RS decoding is deinterleaved by described convolutional deinterleaver; And
Remove scrambler, be used for from removing pseudo-random binary sequence (PRBS) from the described RS decoded data of described the 2nd RS decoder to recover initial TS stream.
16. error correction decoding device according to claim 15, wherein said block-based decoder is the RS decoder.
17. error correction decoding device according to claim 16, wherein said block-based decoder are piece turbo decoders.
18. an error correction decoding method of utilizing the error correction decoding device in digit broadcasting system is used to proofread and correct the mistake that produces between the transmission period of digital broadcast data, described method comprises:
The demodulation step that is used for demodulated received signal;
Based on going mapping step than the symbol that specially from described restituted signal, extracts data;
Rearrange described symbol go mapping step to remove mapping (enum) data be the stream of initialize signal order in case spread described received signal burst error in the step that deinterleaves;
Based in described, the deinterleave block-based decoding step of the data that deinterleave in the step of piece ground decoding;
To in described block-based decoding step, carrying out convolution that convolution the deinterleaves step that deinterleaves based on the data of piece ground decoding;
The 2nd RS decoding step of the data that the RS decoding deinterleaves in described convolution deinterleaves step; And
From the RS decoded data described the 2nd RS decoding step, remove pseudo-random binary sequence (PRBS) to recover the scrambling step of going of initial TS stream.
19. error correction decoding method according to claim 18, wherein said block-based decoding step is carried out the RS decoding.
20. error correction decoding method according to claim 18, wherein said block-based decoding step execution block turbo decoding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR30392/2002 | 2002-05-30 | ||
| KR1020020030392A KR100859877B1 (en) | 2002-05-30 | 2002-05-30 | Forward Error Correction Apparatus of digital broadcasting system |
| KR30392/02 | 2002-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1463162A true CN1463162A (en) | 2003-12-24 |
| CN1251516C CN1251516C (en) | 2006-04-12 |
Family
ID=29774915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021440549A Expired - Fee Related CN1251516C (en) | 2002-05-30 | 2002-09-29 | Error correcting coding/decoding device in digital broadcasting system, and its method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100859877B1 (en) |
| CN (1) | CN1251516C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1984332B (en) * | 2005-12-14 | 2010-05-26 | 财团法人工业技术研究院 | Method and system for encoding data and image |
| CN1783856B (en) * | 2004-05-07 | 2011-06-22 | 美国博通公司 | wireless lan transmitter and receiver with high data throughput |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100927144B1 (en) * | 2002-10-19 | 2009-11-18 | 삼성전자주식회사 | Apparatus and method for transmission of digital broadcasting system which has the inner interleaver of improving randomization |
| KR100896684B1 (en) * | 2004-01-27 | 2009-05-14 | 삼성전자주식회사 | Digital broadcasting transmission/reception capable of improving receiving performance and signal processing method thereof |
| KR101227493B1 (en) * | 2006-03-27 | 2013-02-07 | 엘지전자 주식회사 | A digital broadcasting receving apparatus and method for correcting errors |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950016352A (en) * | 1993-11-18 | 1995-06-17 | 이헌조 | HDTV Transceiver |
| KR100360622B1 (en) * | 2000-06-12 | 2002-11-13 | 주식회사 문화방송 | MPEG Data frame structure and transmitting and receiving system using the same |
| KR100343934B1 (en) * | 2000-10-09 | 2002-07-20 | 주식회사 하이닉스반도체 | Encoder using convolutional encoding way and turbo encoding way in imt-2000 system |
| US7165102B2 (en) * | 2000-12-18 | 2007-01-16 | Raza Microelectronics, Inc. | Adaptive link quality management for wireless medium |
-
2002
- 2002-05-30 KR KR1020020030392A patent/KR100859877B1/en not_active IP Right Cessation
- 2002-09-29 CN CNB021440549A patent/CN1251516C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1783856B (en) * | 2004-05-07 | 2011-06-22 | 美国博通公司 | wireless lan transmitter and receiver with high data throughput |
| CN1984332B (en) * | 2005-12-14 | 2010-05-26 | 财团法人工业技术研究院 | Method and system for encoding data and image |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1251516C (en) | 2006-04-12 |
| KR20030092657A (en) | 2003-12-06 |
| KR100859877B1 (en) | 2008-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101552359B1 (en) | / apparatus for adaptation/variable type modulation and demodulation in digtal tx/rx system | |
| CN1245026C (en) | Digital television system | |
| CN100347979C (en) | Simultaneous transmission of standard 8-VSB and robust 2-VSB (4-VSB) symbols in atsc system | |
| KR101532315B1 (en) | High definition television transmission with mobile capability | |
| CN1186932C (en) | Digital television system | |
| CN101635787B (en) | Digital broadcasting transmission/reception system having improved receiving performance and signal processing method thereof | |
| CN1106102C (en) | Rotationally invariant trellis coding incorporating transparent binary convolutional codes | |
| CN1245833C (en) | Transmitter for digital broadcasting system with comprehensive error correcting coding function and method thereof | |
| MXPA06011440A (en) | Digital television transmitter and method of coding data in digital television transmitter. | |
| CN1968232A (en) | System for transmitting single carrier and transmitting method thereof | |
| CN1929614A (en) | Frame transmission method for moving and hand-held wireless videocast | |
| CN1280993C (en) | Digital broadcasting apparatus and method with different error correcting codes under communication environment | |
| CN1574920A (en) | Receiving device and method for digital broadcast system | |
| CN1151672C (en) | Channel encoding modulation method adopting hierarchial block product code | |
| CN1251516C (en) | Error correcting coding/decoding device in digital broadcasting system, and its method | |
| CN1738373A (en) | Digital broadcasting system transmitter and method | |
| CN1263299C (en) | Digital broadcasting system transmitter with assembled error correcting coding function and method thereof | |
| CN1232117C (en) | Transmitter for digital broadcasting system with comprehensive error correcting coding function and method thereof | |
| CN1224206C (en) | Error-correcting encoding device and method for digital broadcasting system | |
| CN1245834C (en) | Digital broadcasting transmitter for different error correcting code by communication environment and method thereof | |
| CN101262244A (en) | A transmission energy proliferation, signal receiving/transmission method and transmission and receiving device | |
| KR20070089509A (en) | Digital broadcasting system and processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060412 Termination date: 20170929 |