CN108574551A - A kind of installation method for receiving data for the hair of broadcast system - Google Patents
A kind of installation method for receiving data for the hair of broadcast system Download PDFInfo
- Publication number
- CN108574551A CN108574551A CN201710133726.6A CN201710133726A CN108574551A CN 108574551 A CN108574551 A CN 108574551A CN 201710133726 A CN201710133726 A CN 201710133726A CN 108574551 A CN108574551 A CN 108574551A
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- data
- encoder
- interleaver
- regular section
- module
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Classifications
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- 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
-
- 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
- H04L1/0059—Convolutional 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
- H04L1/0061—Error detection codes
- H04L1/0063—Single parity check
-
- 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
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
-
- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Error Detection And Correction (AREA)
Abstract
The invention discloses it is a kind of for broadcast system hair receive data installation method, utilize advanced encoding scheme (including the subchannel with regular section and parity portion), and with existing digital broadcast system compatible.In the sending device, main service channel includes multiple subchannels, and at least one of the subchannel includes the regular section generated based on the information data and parity portion corresponding with the regular section.
Description
Technical field
The present invention relates to digit broadcasting systems, more particularly to being sent in improved multi-channel digital broadcasting system
Method and device with data are received while also with existing digital broadcast system compatible.
Background technology
In recent years, had been incorporated into a variety of advanced communication technologys, with by using realizing close to Shannon capacity performance
Advanced encoding scheme solve noise problem.These advanced encoding schemes include parallel concatenated convolutional code (PCCC), string
Row link convolutional code (SCCC), low density parity check code (LDPC) etc..
However, many contemporary digital broadcast systems used today and its corresponding receiver are that these are advanced in invention
It is developed before encoding scheme or standardized.Digital audio broadcasting (DAB) system, also referred to as Eureka-147 projects are exactly
It is developed in the 1980's Mos and now an example of these widely used digit broadcasting systems of world wide.
Fig. 1 is the block diagram for the sending device of conventional multi-channel digital broadcasting system.With reference to figure 1, which includes control
Channel processed generates unit 10, main service channel (MSC) generates unit 20, MSC multiplexers 30, transmission frame multiplexer
40, fast information channel in dab receiver (FIC) and MSC symbol generators 50 and (OFDM) signal generator of Orthodoxy Frequency Division Multiplex
60。
Control channel generates unit 10 and includes fast information block (FIB) assembler 11, scrambler 13 and convolution coder 15,
To generate the FIC for including the information about main service channel based on control data.
It includes multiple subchannel module 20-1 to 20-N that MSC, which generates unit 20, and multiple sub- letters are generated based on information data
Road.Each of subchannel module (20-1 to 20-N) includes：Scrambler (21-1 to 21-N), disturbs received data
Code；Nonsystematic onrecurrent convolution (NSC) encoder (23-1 to 23-N), the data that will be received from scrambler (21-1 to 21-N)
Coding；Punch unit (puncturing unit) (25-1 to 25-N) will be received from NSC encoders (23-1 to 23-N)
Data are perforated；And time interleave (27-1 to 27-N), the data received from punch unit (25-1 to 25-N) are executed
It is time-interleaved.
The data multiplex that MSC multiplexers 30 receive the subchannel module 20-1 to 20-N that unit 20 is generated through MSC
Multiplexing, and the result of output multi-channel multiplexing.
Result of the transmission frame multiplexer 40 based on the multiplexing received from MSC multiplexers 30 and from control
Channel generates 10 received signal of unit, generates transmission frame, and export the transmission frame.
FIC and MSC symbol generators 50 generate the FIC of transmission frame for being received from transmission frame multiplexer 40 with
MSC data symbols.
Ofdm signal generator 60 is accorded with according to the data received from FIC and MSC symbol generators 50 and from synchronizing signal
The data that number generator (not shown) receives generate ofdm signal.
Invention content
The embodiment provides a kind of digit broadcasting system and one kind use advanced encoding scheme (including
Carry the subchannel of regular section (regular part) and parity portion (parity part)) but still with existing number
The method that broadcast system is especially its regular receiver compatibility.
One aspect of the present invention provides a kind of sending device for multi-channel digital broadcasting system, the device packet
It includes：Main service channel (MSC) generates unit, and multiple subchannels are generated based on information data；And control channel generates unit,
It generates the fast information channel in dab receiver (FIC) for including the information about the main service channel based on control data.In these subchannels
It is at least one include the regular section generated based on the information data and parity portion corresponding with the regular section.
The MSC generates unit：Regular section module generates regular section；And parity portion mould
Block generates the parity data based on the information data and the parity portion based on the parity data.
The regular section module may include：Scrambler will be supplied to the information data scrambler of the regular section module；
First encoder receives and encodes the data from the scrambler；First punch unit, will be from first encoder
Data are perforated；And first interleaver, by the data interlacing from first punch unit.
The parity portion module may include：Second interleaver, by the data interlacing from first encoder；
Second encoder receives and encodes the data from second interleaver, and exports the parity data；And third is handed over
Device is knitted, by the data interlacing from the second encoder.
The parity portion module may further include：Second punch unit, receive and perforate from this first
The data of encoder, and perforations results are exported and give second interleaver；And third punch unit, it receives and perforates and
From the data of the second encoder, and perforations results are exported and give the third interleaver.
First encoder can be onrecurrent, nonsystematic convolution (NSC) encoder, and the second encoder can be passed
Return system convolution (RSC) encoder.
This first and third interleaver can be convolution-interleaver or block-interleaver, and second interleaver can be
Block-interleaver.
The second encoder can receive the data as input data from second intertexture, encode received data,
And output system data and parity data.The parity portion can exclude the system based on the parity data
Data generate.
The digit broadcasting system can be digital audio broadcasting (DAB) system or digital multimedia broadcasting (DMB) system.
Another aspect of the present invention provides a kind of reception device for multi-channel digital broadcasting system, which includes extremely
Few sub-channels, have the regular section generated based on information data and even-odd check corresponding with regular section portion
Point.The reception device receives broadcast data from sending device, which generates and send the main clothes including multiple subchannels
Be engaged in channel (MSC), the subchannel it is at least one have the regular section generated based on information data and with the regular section
Corresponding at least one parity portion.The reception device includes：MSC demultiplexers；First interleaver, will be from this
The regular section data interlacing that MSC demultiplexers receive, and export the data of intertexture；And decoder, it receives and solves
Parity portion data of the code from the MSC multiplexers and the data from first interleaver.
The reception device may further include multiplexer, receives and multiplexes from first interleaver
Regular section data and parity portion data from the MSC demultiplexers, and the result of multiplexing is defeated
Go out to decoder.
The decoder can be made of Conventional decoder substantially.The decoder may include：Inner demoder configures to connect
Receive and decode the data from first interleaver, parity portion data from the MSC demultiplexers and anti-
Present data；Deinterleaver, reception and the data from the inner demoder that deinterleave, and export the data to deinterleave；Outer decoding
Device receives and decodes the data from the deinterleaver, and exports the information data and code data；And second interleaver,
It, which receives and interweaves, the code data from the outer decoder and exports the feedback data.
First and second interleaver can be block interleaver, and the deinterleaver can be block deinterleaver.
The inner demoder can be interior software- redundancy (SISO) decoder, and the outer decoder can be outer software- redundancy
(SISO) decoder.
Another aspect provides a kind of method of the transmission data for multi-channel digital broadcasting system, the party
Method includes：Include the MSC of multiple subchannels based on information data generation；It is generated comprising the letter about the MSC based on control data
The FIC of breath；And the subchannel and the FIC are multiplexed, and send multiplexing result.At least one packet of the subchannel
Include the regular section generated based on the information data and parity portion corresponding with the regular section.
The generation of the main service channel may include：Generate the regular section；And it generates based on the strange of the information data
Even parity check data and parity portion based on the parity data.
The generation of the regular section may include：Scrambler is carried out to the information data provided to the regular section；By connecing
It receives and the data for encoding the scrambler executes the first coding；It is worn by the way that the data perforation encoded in first coding is executed first
Hole；And by the way that in the data interlacing of the first perforation middle punch the first intertexture will be executed.
The generation of the parity portion may include：The is executed by interweaving in first coding data that encode
Two interweave；The second coding is executed by receiving and encoding the data to interweave in second intertexture, and exports the even-odd check
Data；And interweaved to execute third by being interleaved the data to interweave in second intertexture.
The generation of the parity portion may include：By receive and perforate in first coding data that encode come
Execute the second perforation；And it is perforated by the data encoded in second coding that receive and perforate to execute third.
Another aspect provides a kind of method of reseptance for multi-channel digital broadcasting system, which includes
Sending device, the sending device are generated and are sent including regular section based on information data and corresponding with the regular section
The MSC of at least one parity portion.This method generally comprises：Receive the regular section as input data and odd even school
Test part.This method may include：It goes to multiplex the input data, and selectively exports regular section data；Pass through friendship
Being woven in this goes the regular section data selected in multiplexing to execute the first intertexture；And by receiving and decoding the odd even school
Partial data and regular section data are tested to decode.
The method of reseptance may further include：Before executing the decoding, receives and multiplex the even-odd check portion
Divided data and the regular section data.
The decoding may include：Interior decoding；Deinterleave the decoded data in the interior decoding；It is deinterleaved at this by decoding
In the data that deinterleave execute outer decoding, and generate information data and code data (code data)；And it is outer at this by interweaving
The code data of intertexture are fed back to the interior decoding by the code data generated in decoding to execute the second intertexture.
In the following, the example embodiment that the present invention will be described in detail with reference to the accompanying drawings.Identical reference numeral indicates in the accompanying drawings
Identical part.
Description of the drawings
By reference to attached drawing detailed description of the present invention example embodiment, above and other feature of the invention is for ability
It will become obvious for field technique personnel.In the accompanying drawings：
Fig. 1 is the block diagram of the sending device of conventional multi-channel digital broadcasting system；
Fig. 2 is the figure for the transmission frame-form for showing conventional multi-channel digital broadcasting system；
Fig. 3 is the serial link convolution coder according to the ... of the embodiment of the present invention for serial link convolutional code (SCCC)
Block diagram；
Fig. 4 is the block diagram of the serial link convolutional decoder for SCCC.
Specific implementation mode
Fig. 3 is the serial link convolution coder for the advanced coding solution referred to as serial link convolutional code (SCCC)
Block diagram.With reference to figure 3, serial link convolution coder (" encoder ") 300 includes outer convolutional encoder device 210, inner convolutional encoder
Device 230 and the interleaver 220 between the outer convolutional encoder device 210 and inner convolutional encoder device 230.If necessary,
Encoder 300 may further include punch unit (not shown), respectively to the data that are received from outer convolutional encoder device 210 and
Data from inner convolutional encoder device 230 execute perforation.Fig. 4 is the serial link convolution for serial link convolutional code (SCCC)
The block diagram of decoder 400.
First regular section module 410-1R may include：Scrambler 411-1, to being supplied to regular section module 410-
The information data of 1R carries out scrambler；First encoder 412-1 is received and is encoded the data exported from scrambler 411-1；
First punch unit 413-1 executes perforation to the data exported from first encoder 412-1；And first interleaver
414-1 is interleaved the data exported from first punch unit 413-1.
Therefore, each regular section module is configured to have and subchannel module (such as 20-1 shown in Fig. 1) phase
Same construction so that reception device and existing digital broadcast system compatible for conventional numerical broadcast system.Last routine
Part of module 410-NR is equivalent to first regular section module 410-1R, and by its detailed description is omitted.
Each of parity portion block 410-1P and 410-NP includes：Second interleaver (e.g., 416-1 and 416-
N), interweave the data from the first encoder 412-1 and 412-N；Second encoder (e.g., 471-1 and 417-N), connects
It receives and encodes the data from second interleaver (e.g., 416-1 and 416-N), and export the parity data；And third
Interleaver (e.g., 419-1 and 419-N), interweave the data from the second encoder (e.g., 471-1 and 417-N).
By parity portion module (410-1P and 410-NP) and serial link convolution coder phase shown in Fig. 3
Than when, the first encoder (e.g., 412-1 and 412-N) correspond to Fig. 3 outer encoder 210, the second interleaver (416-1 and 416-
N) correspond to the interleaver 220 of Fig. 3, and second encoder (471-1 and 417-N) corresponds to the inner encoder 230 of Fig. 3.Therefore,
Parity portion module 410-1P and 410-NP are able to carry out serial link convolutional decoder (SCCC), are advanced codings
Scheme.
Parity portion module (410-1P and 410-NP) is each to be further comprised：Second punch unit is (e.g.,
415-1 and 415-N), reception and the data from first encoder (412-1 and 412-N) of perforating, and perforations results are defeated
Go out to second interleaver (416-1 and 416-N)；And third punch unit 418-1 and 418-N, it receives and perforates and come from
The data of the second encoder (417-1 and 417-N), and perforations results are output to third interleaver (419-1 and 419-N).
First encoder (412-1 and 412-N) can be nonsystematic onrecurrent convolution (NSC) encoder, and the second coding
Device (417-1 and 417-N) can be Recursive Systematic Convolutional (RSC) encoder.It replaces, the first encoder (412-1 and 412-N)
Can be rsc encoder, and second encoder (417-1 and 417-N) is preferably rsc encoder.If second encoder (417-
1 and 417-N) be rsc encoder, then they receive the data as input data from the second interleaver (416-1 and 416-N),
Encode received data, and output system bit and Parity Check Bits.The systematic bits, which are equivalent to, is supplied to the second coding
The input data of device (417-1 and 417-N), and therefore, parity portion module (410-1P to 410-NP) only handles odd even
Check bit simultaneously sends handling result.This is because the information about the systematic bits is that (410-1R is extremely through conventional part of module
410-NR) send.
First interleaver (414-1 and 414-N) and third interleaver (419-1 and 419-N) can be convolutional deinterleaver or
Block interleaver, and the second interleaver (416-1 and 416-N) can be block interleaver.First interleaver (414-1 and 414-N) and
Third interleaver (419-1 and 419-N) can be interweaved with processing time.
It includes fast information block (FIB) assembler 431, scrambler 433 and convolutional encoding that control channel, which generates unit 430,
Device 435, and the FIC for including the information about MSC is generated based on control data.The control channel generates unit 430 can be with
It is identical that control channel in Fig. 1 generates unit 10.
MSC multiplexers 420 will generate (R) and (P) subchannel module (410-1 to 410-N) of unit 410 through MSC
The data multiplex of reception, and the result of output multi-channel multiplexing (is selected from (R) and (P) subchannel module (410-1 to 410-N)
The data selected).
Transmission frame multiplexer 440 based on from MSC multiplexers 420 signal and from the control channel generate
The signal of unit 430 generates and exports transmission frame.
FIC and MSC symbol generators 450 generate the FIC and MSC of the transmission frame received from transmission frame multiplexer 440
Data symbol.
Ofdm signal generator 460 is believed based on the data received from FIC with the MSC symbol generators 450 and from synchronous
The data that road symbol generator (not shown) receives generate ofdm signal.
Although having specifically illustrated and having illustrated that the present invention, those skilled in the art will with reference to its exemplary embodiment
Understand, wherein variation on various forms and details can be carried out without departing from the present invention's as defined by the appended claims
Spirit and scope.
Claims (3)
1. a kind of device for the transmission data in multi-channel digital broadcasting system, including：Subchannel generator, configuration come
Multiple subchannels are generated based on information data；Wherein at least one subchannel includes：The conventional portion generated based on the information data
Point；Parity portion corresponding with the regular section, wherein the subchannel generator include：Regular section module, matches
It sets to generate the regular section, wherein the regular section module includes：Scrambler, configuration carry out scrambler and are supplied to the regular section
The information data of module and export the data after scrambler；First encoder configures to receive and encode the data after scrambler；
First punch unit, configuration will perforate from the data of first encoder；First interleaver, configuration come to interweave
The data of first punch unit；And parity portion module, configuration generate even-odd check to be based on the information data
Data, and configure and generate parity portion to be based on the parity data, the wherein parity portion module includes：The
Two interleavers configure come the data from first encoder that interweave；Second encoder, configuration come to receive and encode
The data of second interleaver, and export the parity data.
2. device as described in claim 1, further comprises：Control channel generator, configuration are produced to be based on control data
The raw fast information channel in dab receiver (FIC) for including information related with the multiple subchannel.
3. device as described in claim 1, wherein the subchannel generator are main service channel generators；The wherein odd even school
Part of module is tested to further comprise：Third interleaver configures come the data from the second encoder that interweave；The even-odd check
Part of module further comprises：Second punch unit configures come the data from first encoder that receive and perforate, and
Perforations results are exported and give second interleaver；And third punch unit, it configures to receive and perforate from second volume
The data of code device, and perforations results are exported and give the third interleaver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710133726.6A CN108574551A (en) | 2017-03-08 | 2017-03-08 | A kind of installation method for receiving data for the hair of broadcast system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710133726.6A CN108574551A (en) | 2017-03-08 | 2017-03-08 | A kind of installation method for receiving data for the hair of broadcast system |
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| Publication Number | Publication Date |
|---|---|
| CN108574551A true CN108574551A (en) | 2018-09-25 |
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| CN201710133726.6A Withdrawn CN108574551A (en) | 2017-03-08 | 2017-03-08 | A kind of installation method for receiving data for the hair of broadcast system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824532A (en) * | 2020-06-18 | 2021-12-21 | 华为技术有限公司 | Method for transmitting data frame, method for receiving data frame and communication device |
-
2017
- 2017-03-08 CN CN201710133726.6A patent/CN108574551A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824532A (en) * | 2020-06-18 | 2021-12-21 | 华为技术有限公司 | Method for transmitting data frame, method for receiving data frame and communication device |
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Application publication date: 20180925 |