CN109474895A - The data transmission method and equipment of digit broadcasting system - Google Patents
The data transmission method and equipment of digit broadcasting system Download PDFInfo
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- CN109474895A CN109474895A CN201710801554.5A CN201710801554A CN109474895A CN 109474895 A CN109474895 A CN 109474895A CN 201710801554 A CN201710801554 A CN 201710801554A CN 109474895 A CN109474895 A CN 109474895A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses the data transmission method of digit broadcasting system and equipment.The described method includes: the physical signal frame of the digit broadcasting system includes targeting signal, multiple frame head data blocks and multiple body data blocks；Information parameter of the transmission about physical signal frame data block type in the targeting signal；Carrying is used for transmission the physical signaling pipeline of signaling data and is used for transmission the physics rapid pipeline of fastext data in the frame head data block；Carrying is used for transmission the physical data pipeline of business datum in the body data block；Code rate of the code rate of the fastext data of the physics rapid pipeline transmission lower than the business datum of physical data pipeline transmission；Intra-frame interleaving processing only is carried out to body data block.The data transmission method and equipment of digit broadcasting system provided by the invention, can the demand according to institute's bearer service to real-time and service quality flexibly carry out data transmission.
Description
Technical field
The present invention relates to technical field of digital broadcast, more particularly, to a kind of transmission side data of digit broadcasting system
Method and equipment.
Background technique
Other than broad covered area, program capacity are big, maximum feature is exactly with broadcast, digital broadcasting for digital broadcasting
As an important component of ICT industry, in national information infrastructure construction, universal service and state's letter from home are realized
Ceasing has critical role in security strategy.
In the broadcast systems such as radio broadcasting, ground hand-held broadcast, satellite broadcasting, to provide differentiated service, business quilt
It is divided into a variety of different types.All business are transmitted in same Broadcast physical signal frame by multiple connection in system, different
Business provides different service quality (QOS).Therefore, it is necessary to propose that one kind can be according to institute's bearer service to real-time and service
The demand of quality flexibly carries out the technical solution of digital broadcast signal transmission.
Summary of the invention
It, can be according to being held it is an object of the present invention to provide a kind of data transmission scheme of single carrier digit broadcasting system
Demand of the load business to real-time and service quality flexibly carries out data transmission.
According to the first aspect of the invention, a kind of data transmission method of digit broadcasting system is provided, the number is wide
The physical signal frame for broadcasting system includes targeting signal, multiple frame head data blocks and multiple body data blocks；
Information parameter of the transmission about physical signal frame data block type in the targeting signal；
Carrying is used for transmission the physical signaling pipeline of signaling data and is used for transmission quick industry in the frame head data block
The physics rapid pipeline for data of being engaged in；
Carrying is used for transmission the physical data pipeline of business datum in the body data block；The physics rapid pipeline
Code rate of the code rate of the fastext data of transmission lower than the business datum of physical data pipeline transmission；Only to body data block into
The processing of row intra-frame interleaving；
Wherein, the signaling data transmitted in the physical signaling pipeline include physical signaling pipeline signaling information parameter,
The signaling information parameter of physical data pipeline and the signaling information parameter of physics rapid pipeline；
The targeting signal includes P frequency pilot sign and multiple main body symbols, the frame head data block and body data block
It include P frequency pilot sign and data symbol.
Optionally, the data block type is used to indicate the following parameter of physical signal frame: the data block of physical signal frame
Number, the number of frame head data block, the length of data block, the frequency pilot sign number for including in each data block and data group
Number, the interleaver matrix line number of intra-frame interleaving and columns.
Optionally, system receiving terminal can lead P of the main body symbol of the targeting signal and first frame head data block
Frequency symbol carries out single carrier frequency domain equalization processing as a processing unit.
Optionally, system receiving terminal can accord with P pilot tone of the data symbol of previous data block and the latter data block
Number single carrier frequency domain equalization processing is carried out as processing unit.
Optionally, system receiving terminal can be by P data symbols of the last one body data block of previous physical signal frame
Single carrier frequency domain equalization is carried out as a processing unit number with P frequency pilot sign of the targeting signal of the latter physical signal frame
Processing.
Optionally, the digit broadcasting system has a variety of data block types, and every kind of data block type defines different numbers
According to block parameter；The data block parameter includes the total number for the data block that the physical signal frame includes, which includes
Frame head data block number, the length of each data block, the number for the frequency pilot sign that each data block includes, each data block
The number for the data group for including.
Optionally, described that body data block is carried out intra-frame interleaving to handle being using data group as basic operation unit.
Optionally, for different digit broadcasting system bandwidth and different data block types, the intra-frame interleaving is used
Interleaver ranks parameters it is different.
According to the second aspect of the invention, a kind of data transmission set of digit broadcasting system is provided, including memory,
Processor and storage on a memory and the computer program that can run on a processor, when the processor execution described program
Realize the data transmission method of aforementioned described in any item digit broadcasting systems.
The data transmission method and equipment of digit broadcasting system provided by the invention, can be according to institute's bearer service to real-time
And the demand of service quality flexibly carries out data transmission.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the frame for showing the example of hardware configuration for the data transmission set that can be used for realizing the embodiment of the present invention
Figure.
Fig. 2 shows the structural schematic diagrams of physical signal frame provided in an embodiment of the present invention.
Fig. 3 shows the structural schematic diagram of physical signal frame provided in an embodiment of the present invention.
Fig. 4 shows the schematic diagram of frequency domain equalization processing provided in an embodiment of the present invention.
Fig. 5 shows the schematic diagram of frequency domain equalization processing provided in an embodiment of the present invention.
Fig. 6 shows the schematic diagram of frequency domain equalization processing provided in an embodiment of the present invention.
Fig. 7 shows the schematic diagram of pilot tone generating mode in frame provided in an embodiment of the present invention.
Fig. 8 (a) is the schematic diagram of the write-in processing mode of intra-frame interleaving provided in an embodiment of the present invention.
Fig. 8 (b) is the schematic diagram of the readout process mode of intra-frame interleaving provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
It is wide that the data transmission method and equipment of digit broadcasting system provided in an embodiment of the present invention are suitable for single carrier number
Broadcast system.
Fig. 1 is the frame for showing the example of hardware configuration for the data transmission set that can be used for realizing the embodiment of the present invention
Figure.
Data transmission set 1000 can be the electronic equipments such as computer, server.As shown in Figure 1, data transmission set
1000 may include processor 1010, memory 1020, interface arrangement 1030, communication device 1040, display device 1050, input
Device 1060, loudspeaker 1070, microphone 1080, etc..Wherein, processor 1010 can be central processor CPU, micro process
Device MCU etc..Memory 1020 for example including ROM (read-only memory), RAM (random access memory), such as hard disk it is non-easily
The property lost memory etc..Interface arrangement 1030 is for example including USB interface, earphone interface, blue tooth interface etc..Communication device 1040 is for example
It is able to carry out wired or wireless communication.Display device 1050 is, for example, liquid crystal display, touch display screen etc..Input unit 1060
It such as may include touch screen, keyboard etc..User can pass through 1080 inputting/outputting voice information of loudspeaker 1070 and microphone.
Data transmission set 1000 shown in FIG. 1 is only explanatory, and is never intended to that the limitation present invention, it answers
With or purposes.Using in an embodiment of the present invention, the memory 1020 of data transmission set 1000 is calculated for storing
Machine program, processor 1010 realize the digit broadcasting system of any one provided in an embodiment of the present invention when executing described program
Data transmission method.
It will be appreciated by those skilled in the art that although showing multiple devices to data transmission set 1000 in Fig. 1,
It is that the present invention can only relate to partial devices therein, for example, data transmission set 1000 pertains only to processor 1010 and storage
Device 1020 etc..Technical staff can disclosed conceptual design program instruction according to the present invention, how processor, which executes program, refers to
Order is techniques well known, therefore is not described in detail herein.
The embodiment of the present invention is supplied to a kind of data transmission method of digit broadcasting system, the digit broadcasting system
Physical signal frame includes targeting signal, multiple frame head data blocks and multiple body data blocks；
Information parameter of the transmission about physical signal frame data block type in the targeting signal；
Carrying is used for transmission the physical signaling pipeline of signaling data and is used for transmission quick industry in the frame head data block
The physics rapid pipeline for data of being engaged in；
Carrying is used for transmission the physical data pipeline of business datum in the body data block；The physics rapid pipeline
Code rate of the code rate of the fastext data of transmission lower than the business datum of physical data pipeline transmission；Only to body data block into
The processing of row intra-frame interleaving；
Wherein, the signaling data transmitted in the physical signaling pipeline include physical signaling pipeline signaling information parameter,
The signaling information parameter of physical data pipeline and the signaling information parameter of physics rapid pipeline；
The targeting signal includes P frequency pilot sign and multiple main body symbols, the frame head data block and body data block
It include P frequency pilot sign and data symbol.
The digit broadcasting system has a variety of data block types, and every kind of data block type defines different data block ginsengs
Number；The data block parameter includes the total number for the data block that the physical signal frame includes, the frame head which includes
The number of data block, the length of each data block, the number for the frequency pilot sign that each data block includes, each data block include
The number of data group.
For different digit broadcasting system bandwidth and different data block types, the interleaver of the intra-frame interleaving use
Ranks parameters it is different.
Wherein, the data block type is used to indicate the following parameter of physical signal frame: the data block of physical signal frame
Number, the number of frame head data block, the length of data block, the frequency pilot sign number for including in each data block and data group
Number, the interleaver matrix line number of intra-frame interleaving and columns.
Shown in referring to figs. 2 and 3, illustrate the physical signal frame knot of the digit broadcasting system provided in an embodiment of the present invention
Structure.Each physical signal frame by 1 targeting signal and N number of data chunk at.Wherein preceding M data block is frame head data block, is used
Carry physics signalling pipes data and physics rapid pipeline data, the pipeline data FEC coding long using low bit- rate short code,
And do not use interframe to interweave, it reduces system transmission delay and guarantees its demand to real-time.Remaining N-M data block is frame number
It, can be according to the business that physical data pipeline is carried to the need of real-time and QOS for carrying physics data pipe data according to block
Ask, flexible configuration its use modulation code rate and current physical data pipeline interframe interleave depth.Each data block is by frame in frame
Interior pilot tone and data group are constituted, and each data group includes S data symbol.
A variety of data block types (Pilot Symbol Length P and data group number B that each data block includes is provided in frame structure
Combination), it is fixed if high-speed mobile receives, middle low-speed mobile reception so that this digit broadcasting system adapts to various application environments
Environment receives, long channel time delay environment receives etc..A kind of suitable data block type can be selected according to system specific application environment
It uses, so that system can reduce as far as possible frequency pilot sign in the case where fighting current environment channel delay and Doppler frequency shift
Expense improves payload data handling capacity.
Refering to what is shown in Fig. 3, in frame structure in targeting signal and data block periodically frequency pilot sign except can auxiliary reception end
It carries out also targeting signal being become similar with the reception equilibrium treatment of each data block other than conventional synchronization and channel estimation
Common frequency domain equalization in multi-carrier OFDM systems is more simply and efficiently carried out using the methods of Fast Fourier Transform (FFT) (FFT)
Signal processing.
Refering to what is shown in Fig. 4, illustrating targeting signal processing provided in an embodiment of the present invention: by L main body in targeting signal
P frequency pilot sign in symbol and first data block is used for single carrier frequency domain equalization processing as a processing unit,
Realize frequency domain equalization.P frequency pilot sign in the processing unit can help receiver preferably real as Given information simultaneously
Existing decision-feedback formula frequency domain equalization Processing Algorithm, further improves single carrier equalization performance.P frequency pilot sign in targeting signal
It can be used as the cyclic prefix of the processing unit, for resisting the multidiameter delay of transmission channel, protect current processing unit not by preceding
One frame data symbol-interference, as shown in Figure 4.
Refering to what is shown in Fig. 5, illustrating intraframe data block processing provided in an embodiment of the present invention: can be by B*S in data block
P frequency pilot sign in data symbol and the latter data block is used for single carrier frequency domain equalization as a processing unit
Frequency domain equalization is realized in processing.P frequency pilot sign in the processing unit can help receiver more as Given information simultaneously
Good realization decision-feedback formula frequency domain equalization Processing Algorithm further improves single carrier equalization performance.P pilot tone in data block
Symbol can be used as the cyclic prefix of the processing unit, for resisting the multidiameter delay of transmission channel, protect current processing unit not
By last data block number according to symbol-interference.
Refering to what is shown in Fig. 6, illustrating postamble data block processing provided in an embodiment of the present invention: can be by the B*S in the data block
It is equal to be used for single-carrier frequency-domain as a processing unit for P frequency pilot sign of a data symbol and next frame targeting signal
Weighing apparatus processing, realizes frequency domain equalization.Wherein, B is the number of data group in the data block, and S is of the symbol in each data group
Number.P frequency pilot sign in the processing unit can help receiver preferably to realize decision-feedback as Given information simultaneously
Formula frequency domain equalization Processing Algorithm further improves single carrier equalization performance.P frequency pilot sign in data block can be used as the processing
The cyclic prefix of unit protects current processing unit not by last data block number evidence for resisting the multidiameter delay of transmission channel
Symbol-interference.
Shown in reference table (1), illustrate that the embodiment of the present invention is 8 kinds of data block types that digit broadcasting system provides: different
Frequency pilot sign in each physical signal frame includes under data block type data block number N and the frame for including in each data block
Number P and data group number B is different.Each broadcast channel can only use a kind of data block type, used data block
Type information can be carried by the main body symbol in targeting signal.Shown in the design parameter of 8 kinds of data block types such as table (1),
Each data group includes S=16 data symbol.
Table (1)
Wherein FHMultFor frame head data block spreading factor, can value be 1,2,3,4；NbwSystem bandwidth spreading factor can use
Value is 1,2,4,8.
Main body symbol in targeting signal carries 3 bit informations, the physical signal frame of digit broadcasting system in corresponding table (1)
Used 8 kinds of data block type information.
Refering to what is shown in Fig. 7, illustrating pilot tone generating mode in frame provided in an embodiment of the present invention, according to provided by table (2)
Pilot frequency sequence generates parameter list in frame, generates pilot frequency sequence in the frame that length is P.The pilot tone that length is P in each data block accords with
Number by two segment length P of front and backdThe pilot frequency sequence of=P/2 is constituted, and is denoted as c respectively1And c2。
Pilot frequency sequence c1And c2It is N by an identical segment lengthZC=2t- 1 Zadoff-Chu sequenceAnd it fills out
Fill symbol composition, t and PdBetween relationship be Pd=2t。c1And c2Constructive method it is as follows:
Wherein
Wherein
Wherein filling symbol z is to map obtained BPSK symbol by bit 1.
The generation method of Zadoff-Chu sequence q is shown below:
Under various pilot length modes, Zadoff-Chu sequence order t and root serial number u numerical value are configured according to table (2).
Pilot frequency sequence generates parameter list in table (2) frame
| Pilot length P | Zadoff-Chu sequence order t | Root serial number u |
| 32 | 4 | 13 |
| 64 | 5 | 17 |
| 128 | 6 | 40 |
| 256 | 7 | 81 |
| 512 | 8 | 139 |
| 1024 | 9 | 465 |
| 2048 | 10 | 92 |
Intraframe data symbol interleaving is using data group as basic operation unit, only to body data block (data block M+1 in Fig. 2
All data groups carry out on to N).
By body data block, (the physical data pipeline business datum that data block M+1 to N) is carried in Fig. 1 completes star
After seat mapping, according to data pipe and sequence (first data group ... of physical data pipeline 1, the physical data pipe of data group
The last one data group in road 1, first data group ... of physical data pipeline 2, last number of physical data pipeline K
According to group) it is sequentially inputted in intraframe data symbol interleaving unit.Referring to shown in Fig. 8 (a), intra-frame interleaving enters according to row write (from upper
Under and)；Referring to shown in Fig. 8 (b), reading is carried out according to the sequence of column (from left to right)；One data of write-in or reading every time
Group.The data group exported through intra-frame interleaving device is sequentially mapped on body data block by output sequence.Different system bandwidths and not
Interleaver ranks parameter with data block type is as shown in table 3- table 5.
Table (3), NbwWhen=1 or 2, data symbol interleave parameter
Table (4), NbwWhen=4, data symbol interleave parameter
| Data block type | Every physical signal frame data group number to be interweaved | Interleaving block line number X | Interleaving block columns Y |
| 1 | (212-FHMult)*240*4 | (212-FHMult)*2 | 240*2 |
| 2 | (212-FHMult)*224*4 | (212-FHMult)*2 | 224*2 |
| 3 | (212-FHMult)*240*4 | (212-FHMult)*2 | 240*2 |
| 4 | (212-FHMult)*224*4 | (212-FHMult)*2 | 224*2 |
| 5 | (212-FHMult)*248*4 | (212-FHMult)*2 | 248*2 |
| 6 | (212-FHMult)*240*4 | (212-FHMult)*2 | 240*2 |
| 7 | (212-FHMult)*254*4 | (212-FHMult)*2 | 254*2 |
| 8 | (212-FHMult)*240*4 | (212-FHMult)*2 | 240*2 |
Table (5), NbwWhen=8, data symbol interleave parameter
| Data block type | Every physical signal frame data group number to be interweaved | Interleaving block line number X | Interleaving block columns Y |
| 1 | (212-FHMult)*240*8 | (212-FHMult)*4 | 240*2 |
| 2 | (212-FHMult)*224*8 | (212-FHMult)*4 | 224*2 |
| 3 | (212-FHMult)*240*8 | (212-FHMult)*4 | 240*2 |
| 4 | (212-FHMult)*224*8 | (212-FHMult)*4 | 224*2 |
| 5 | (212-FHMult)*248*8 | (212-FHMult)*4 | 248*2 |
| 6 | (212-FHMult)*240*8 | (212-FHMult)*4 | 240*2 |
| 7 | (212-FHMult)*254*8 | (212-FHMult)*4 | 254*2 |
| 8 | (212-FHMult)*240*8 | (212-FHMult)*4 | 240*2 |
In the data transmission method of the digit broadcasting system of above-mentioned digit broadcasting system: can be according to each industry to be transmitted
The demand being engaged in real-time and QOS, can choose physical data pipeline or physics rapid pipeline is transmitted, and can root
According to business datum amount flexible in size configuring pipes width.
It is very high to requirement of real-time to physical signaling data, by physical signaling data configuration to physical signaling pipeline, no
The interframe for carrying out pipeline data interweaves, and long, low bit- rate the FEC coding using short code, guarantees it to real-time and service quality
Demand.
To the very high fastext data of requirement of real-time, such as navigation, positioning data service, it is fast to be configured to physics
Fast pipeline, the interframe without pipeline data interweave, and long, low bit- rate the FEC coding using short code, guarantee its to real-time and
The demand of service quality；
There is the business datum of certain demand to real-time, be configured to physical data pipeline and transmitted, carries out pipeline
The interframe of data interweaves, and by configuring interleave depth, it is made to improve its reception to the greatest extent under the premise of meeting real-time
Performance；
It is very insensitive to real-time but to the business datum that service quality has higher requirements, it is configured to physical data pipe
Road is transmitted, and the interframe for carrying out pipeline data interweaves, and by configuring longer interleave depth, reaches QOS performance requirement；
It can be selected to carry out the data interlacing in frame between multiple physical data pipelines, one side maximum limit according to channel conditions
On the other hand degree will be beaten using the time diversity in signal frame using multiple physical data pipeline datas of different modulating mode
It dissipates, further assists neighbouring order modulated data symbol to carry out using the demodulation discriminative information for breaing up rear lower order modulated data symbol
Demodulation, so as to improve using the physical data tube performance of high order modulation.
The data transmission method of digit broadcasting system provided in an embodiment of the present invention adopts single-carrier system receiving end
It is simpler using the methods of Fast Fourier Transform (FFT) (FFT), efficient with the processing method of similar multicarrier system frequency domain equilibrium
Ground carries out signal demodulation process and implementation complexity is not influenced by channel circumstance maximum delay extension.
The data transmission method of digit broadcasting system provided in an embodiment of the present invention, to the industry not high for requirement of real-time
Business allows to carry out intra-frame interleaving as basic unit using data group (to make full use of time diversity in frame, break up rear lower order modulated data
Symbol assists order modulated data symbol demodulation, improves high order modulation service feature).
The data transmission method of digit broadcasting system provided in an embodiment of the present invention is such as high to adapt to various application environments
The mobile reception of speed, middle low-speed mobile reception, fixed environment receives, long channel time delay environment receives etc., a variety of data block classes are provided
Type.
The data transmission method of digit broadcasting system provided in an embodiment of the present invention, the period in targeting signal and data block
Property insertion certain length frequency pilot sign, except carry out channel, carrier frequency, sampled point time synchronization tracking, can also make single load
Wave system receiving terminal uses the processing method of similar multicarrier system frequency domain equilibrium, utilizes Fast Fourier Transform (FFT) (FFT) etc.
Method more simply and efficiently carries out signal demodulation process.
It will be appreciated by those skilled in the art that signaling data transmission device 1000 can be realized by various modes.Example
Such as, data transmission set 1000 can be realized by instruction configuration processor.For example, instruction can be stored in the ROM, and
And when starting the device, instruction is read in programming device from ROM and realizes data transmission set 1000.For example, can be with
Data transmission set 1000 is cured in dedicated devices (such as ASIC).Data transmission set 1000 can be divided into mutually solely
Vertical unit, or they can be merged to realization.Data transmission set 1000 can pass through above-mentioned various realization sides
One of formula realizes, or can be by the combinations of two or more modes in above-mentioned various implementations come real
It is existing.
It is well known by those skilled in the art that the development of the electronic information technology with such as large scale integrated circuit technology
With the trend of hardware and software, clearly to divide computer system soft and hardware boundary has seemed relatively difficult.Because appointing
What operation can be realized with software, can also be realized by hardware.The execution of any instruction can be completed by hardware, equally may be used
To be completed by software.Hardware implementations or software implement scheme are used for a certain machine function, depend on price, speed
The Non-technical factors such as degree, reliability, memory capacity, change cycle.Therefore, for the ordinary skill of electronic information technical field
For personnel, mode more direct and that a technical solution is explicitly described is each operation described in the program.Knowing
In the case where road institute operation to be performed, those skilled in the art can directly set based on the considerations of to the Non-technical factor
Count out desired product.
The present invention can be system, method and/or computer program product.Computer program product may include computer
Readable storage medium storing program for executing, containing for making processor realize the computer-readable program instructions of various aspects of the invention.
Computer readable storage medium, which can be, can keep and store the tangible of the instruction used by instruction execution equipment
Equipment.Computer readable storage medium for example can be-- but it is not limited to-- storage device electric, magnetic storage apparatus, optical storage
Equipment, electric magnetic storage apparatus, semiconductor memory apparatus or above-mentioned any appropriate combination.Computer readable storage medium
More specific example (non exhaustive list) includes: portable computer diskette, hard disk, random access memory (RAM), read-only deposits
It is reservoir (ROM), erasable programmable read only memory (EPROM or flash memory), static random access memory (SRAM), portable
Compact disk read-only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, mechanical coding equipment, for example thereon
It is stored with punch card or groove internal projection structure and the above-mentioned any appropriate combination of instruction.Calculating used herein above
Machine readable storage medium storing program for executing is not interpreted that instantaneous signal itself, the electromagnetic wave of such as radio wave or other Free propagations lead to
It crosses the electromagnetic wave (for example, the light pulse for passing through fiber optic cables) of waveguide or the propagation of other transmission mediums or is transmitted by electric wire
Electric signal.
Computer-readable program instructions as described herein can be downloaded to from computer readable storage medium it is each calculate/
Processing equipment, or outer computer or outer is downloaded to by network, such as internet, local area network, wide area network and/or wireless network
Portion stores equipment.Network may include copper transmission cable, optical fiber transmission, wireless transmission, router, firewall, interchanger, gateway
Computer and/or Edge Server.Adapter or network interface in each calculating/processing equipment are received from network to be counted
Calculation machine readable program instructions, and the computer-readable program instructions are forwarded, for the meter being stored in each calculating/processing equipment
In calculation machine readable storage medium storing program for executing.
Computer program instructions for executing operation of the present invention can be assembly instruction, instruction set architecture (ISA) instructs,
Machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data or with one or more programming languages
The source code or object code that any combination is write, the programming language include the programming language-of object-oriented such as
Smalltalk, C++ etc., and conventional procedural programming languages-such as " C " language or similar programming language.Computer
Readable program instructions can be executed fully on the user computer, partly execute on the user computer, be only as one
Vertical software package executes, part executes on the remote computer or completely in remote computer on the user computer for part
Or it is executed on server.In situations involving remote computers, remote computer can pass through network-packet of any kind
It includes local area network (LAN) or wide area network (WAN)-is connected to subscriber computer, or, it may be connected to outer computer (such as benefit
It is connected with ISP by internet).In some embodiments, by utilizing computer-readable program instructions
Status information carry out personalized customization electronic circuit, such as programmable logic circuit, field programmable gate array (FPGA) or can
Programmed logic array (PLA) (PLA), the electronic circuit can execute computer-readable program instructions, to realize each side of the invention
Face.
Referring herein to according to the method for the embodiment of the present invention, the flow chart of device (system) and computer program product and/
Or block diagram describes various aspects of the invention.It should be appreciated that flowchart and or block diagram each box and flow chart and/
Or in block diagram each box combination, can be realized by computer-readable program instructions.
These computer-readable program instructions can be supplied to general purpose computer, special purpose computer or other programmable datas
The processor of processing unit, so that a kind of machine is produced, so that these instructions are passing through computer or other programmable datas
When the processor of processing unit executes, function specified in one or more boxes in implementation flow chart and/or block diagram is produced
The device of energy/movement.These computer-readable program instructions can also be stored in a computer-readable storage medium, these refer to
It enables so that computer, programmable data processing unit and/or other equipment work in a specific way, thus, it is stored with instruction
Computer-readable medium then includes a manufacture comprising in one or more boxes in implementation flow chart and/or block diagram
The instruction of the various aspects of defined function action.
Computer-readable program instructions can also be loaded into computer, other programmable data processing units or other
In equipment, so that series of operation steps are executed in computer, other programmable data processing units or other equipment, to produce
Raw computer implemented process, so that executed in computer, other programmable data processing units or other equipment
Instruct function action specified in one or more boxes in implementation flow chart and/or block diagram.
The flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention, method and computer journeys
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
One module of table, program segment or a part of instruction, the module, program segment or a part of instruction include one or more use
The executable instruction of the logic function as defined in realizing.In some implementations as replacements, function marked in the box
It can occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually be held substantially in parallel
Row, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that block diagram and/or
The combination of each box in flow chart and the box in block diagram and or flow chart, can the function as defined in executing or dynamic
The dedicated hardware based system made is realized, or can be realized using a combination of dedicated hardware and computer instructions.It is right
For those skilled in the art it is well known that, by hardware mode realize, by software mode realize and pass through software and
It is all of equal value that the mode of combination of hardware, which is realized,.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.The selection of term used herein, purport
In principle, the practical application or to the technological improvement in market for best explaining each embodiment, or make the art its
Its those of ordinary skill can understand each embodiment disclosed herein.The scope of the present invention is defined by the appended claims.
Claims (9)
1. a kind of data transmission method of digit broadcasting system, which is characterized in that the physical signal frame of the digit broadcasting system
Including targeting signal, multiple frame head data blocks and multiple body data blocks；
Information parameter of the transmission about physical signal frame data block type in the targeting signal；
Carrying is used for transmission the physical signaling pipeline of signaling data and is used for transmission fastext number in the frame head data block
According to physics rapid pipeline；
Carrying is used for transmission the physical data pipeline of business datum in the body data block；The physics rapid pipeline transmission
Fastext data code rate lower than physical data pipeline transmission business datum code rate；Frame only is carried out to body data block
Interior interleaving treatment；
Wherein, the signaling data transmitted in the physical signaling pipeline includes the signaling information parameter of physical signaling pipeline, physics
The signaling information parameter of data pipe and the signaling information parameter of physics rapid pipeline；
The targeting signal includes P frequency pilot sign and multiple main body symbols, and the frame head data block and body data block wrap
Include P frequency pilot sign and data symbol.
2. the method according to claim 1, wherein the data block type be used to indicate physical signal frame with
Lower parameter: the number of the data block of physical signal frame, the length of data block, is wrapped in each data block at the number of frame head data block
Frequency pilot sign number and data group number, the interleaver matrix line number of intra-frame interleaving and the columns contained.
3. the method according to claim 1, wherein system receiving terminal can be by the main body symbol of the targeting signal
Single carrier frequency domain equalization processing is carried out as a processing unit with P frequency pilot sign of first frame head data block.
4. the method according to claim 1, wherein system receiving terminal can be by the data symbol of previous data block
Single carrier frequency domain equalization processing is carried out as a processing unit with P frequency pilot sign of the latter data block.
5. the method according to claim 1, wherein system receiving terminal can be by the last of previous physical signal frame
P frequency pilot sign of the targeting signal of the P data symbol and the latter physical signal frame of one body data block is as one
Processing unit carries out single carrier frequency domain equalization processing.
6. the method according to claim 1, wherein the digit broadcasting system have a variety of data block types,
Every kind of data block type defines different data block parameters；The data block parameter includes the data block that the physical signal frame includes
Total number, the number for the frame head data block which includes, the length of each data block, each data block includes
The number of frequency pilot sign, the number for the data group that each data block includes.
7. according to the method described in claim 6, it is characterized in that, it is described to body data block carry out intra-frame interleaving processing be with
Data group is basic operation unit.
8. the method according to the description of claim 7 is characterized in that being directed to different digit broadcasting system bandwidth and different numbers
According to block type, the ranks parameter for the interleaver that the intra-frame interleaving uses is different.
9. a kind of data transmission set of digit broadcasting system, including memory, processor and storage are on a memory and can be
The computer program run on processor, the processor realize that claim 1-8 is described in any item when executing described program
Method.
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