CN110290089A - Applied to the communication means and device of high-speed industrial communication system, computer equipment and storage medium - Google Patents
Applied to the communication means and device of high-speed industrial communication system, computer equipment and storage medium Download PDFInfo
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- CN110290089A CN110290089A CN201910606576.5A CN201910606576A CN110290089A CN 110290089 A CN110290089 A CN 110290089A CN 201910606576 A CN201910606576 A CN 201910606576A CN 110290089 A CN110290089 A CN 110290089A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
-
- 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
Abstract
This disclosure relates to a kind of applied to the communication means of high-speed industrial communication system, sending device, computer equipment and computer readable storage medium.High-speed industrial communication system of the present invention is mainly used to solve the problems, such as industry spot conventional bus low bandwidth, can not carry the real-time and non real-time and complicated network structure simultaneously, high-speed industrial communication system can support IPV6 address communication, it can support the industrial control communication of time trigger, it can support TSN, can support the security mechanisms such as white list, depth detection and data encryption.By the mixed-arrangement for allowing pilot configuration, the utilization efficiency to high-speed industrial communication system communication resource is improved using frequency domain scattered pilot structure and improves real-time communication, and the distribution of frequency domain CP continuous pilot structure can not be can according to need by the constraint of assignment period and neatly distribute running time-frequency resource to the user equipment being connected on industrial communication systems.
Description
Technical field
Present disclosure generally relates to the technical fields of high-speed industrial communication system, in particular to a kind of application
In the communication means of high speed high-speed industrial communication system, sending device, computer equipment and and computer readable storage medium.
Background technique
Multiple industrial equipments (such as measuring instrumentss) are usually mounted on industrial circle, industrial bus, while each industry is set
It is standby to be communicated by industrial bus, such as transmission of control signals and data-signal, industry is carried out for controlling industrial equipment
Production activity.
Usual industrial bus is fieldbus, is communicated by wired mode.Generally carried out using baseband transmission system
Data transmission.Base band transmission is a kind of transmission mode for not moving base-band signal spectrum, in fact, signal to be passed is base band letter
Number, save the step of being modulated to carrier wave.The transmission range of base band transmission is shorter, and the data volume of parallel transmission is few, Er Qiekang
Interference is poor.
Traditionally, this field is it is generally believed that industrial-controlled general line is capable of handling low speed data is sufficient, because in industry
What is transmitted in control bus is usually the video data of control parameter and a small amount of low definition.But with big data
Development and smart machine it is universal, in industrial bus, the data for needing to transmit are also more and more, and transmission rate request
It is higher, meanwhile, the complexity and transmission difficulty of data also greatly increase.Work as in view of the above-mentioned problems, base band transmission has been unable to satisfy
Preceding data transfer demands.
It should be pointed out that being only used for reinforcing the skill to present disclosure in the content of above-mentioned background technology part introduction
The understanding of art background, natural representative's content therein must not be the prior art known to persons of ordinary skill in the art.
Summary of the invention
In view of this, the first purpose of the technical solution of disclosure description be to provide it is a kind of it is improved, be applied to high speed
The communication means of industrial communication systems.
In a first aspect, providing a kind of communication means applied to high-speed industrial communication system.This method comprises: receive to
Send data flow；And the data flow to be sent is modulated to the physical communication of high-speed industrial communication system using OFDM technology
On multiple subbands of resource, wherein each subcarrier included by subband is for carrying pilot data or business datum, and leads
The transmission of frequency evidence uses frequency domain scattered pilot structure and frequency domain CP continuous pilot structure.Physical communication resources are logically divided
For each OFDM symbol is divided into multiple subbands, each subband includes multiple subcarriers.It, will in frequency domain scattered pilot structure
All OFDM symbols in one assignment period are divided into multiple groups, and the pilot data is to be dispersedly distributed in each subband,
And the pilot data takes the subcarrier of all frequency points in the same position subband of each of the multiple groups.Frequency domain connects
Continuous pilot configuration includes at least two subbands under same frequency range, and pilot data is continuously distributed at least one subband.
In second aspect, a kind of communication device applied to high-speed industrial communication system is provided.The device includes: to receive list
Member, for receiving data flow to be sent；And transmission unit, for the data flow to be sent to be modulated to using OFDM technology
On multiple subbands of the physical communication resources of high-speed industrial communication system, wherein each subcarrier included by subband is for carrying
Pilot data or business datum, and the transmission of pilot data uses frequency domain scattered pilot structure and frequency domain CP continuous pilot structure.
Physical communication resources, which are logically divided into, is divided into multiple subbands for each OFDM symbol, and each subband includes multiple sub- loads
Wave.In frequency domain scattered pilot structure, all OFDM symbols in an assignment period are divided into multiple groups, the pilot data
It is to be dispersedly distributed, and the pilot data accounts in the same position subband of each of the multiple groups in each subband
The subcarrier of full all frequency points.Frequency domain CP continuous pilot structure includes at least two subbands under same frequency range, and pilot data is at least
It is continuously distributed in one subband.
In the third aspect, a kind of computer equipment applied to high-speed industrial communication system is provided, comprising: communication interface；
Memory is stored thereon with computer executable instructions；Processor is configured as executing the computer executable instructions to hold
Row method according to aforementioned various aspects.
In fourth aspect, a kind of computer readable storage medium is provided, the computer including being stored thereon is executable to be referred to
It enables, the executable instruction executes the method according to aforementioned various aspects when being executed by processor.
In above-mentioned various aspects, further, in frequency domain scattered pilot structure, the physical communication resources are in logic
On be divided into, the placement location and distributed architecture of the pilot data of the intersubband in each of described multiple groups are different
Or it is identical.
In above-mentioned various aspects, further, distribution of the pilot data in subband is pectination type structure, blocky type knot
Structure or the mixed structure of both.
In above-mentioned various aspects, further, in frequency domain scattered pilot structure, the physical communication resources are in logic
On be divided into, the same position subband in every group is assigned to the same user equipment of high-speed industrial communication system.
In above-mentioned various aspects, further, each user equipment can occupy multiple subbands in each group.
In above-mentioned various aspects, further, some subband for configuring a group in the multiple groups be frequency domain from
The same position subband for dissipating pilot configuration, while configuring other groups in the multiple groups is frequency domain scattered pilot structure.
According to various embodiments of the present invention, by allowing the mixed-arrangement of pilot configuration, frequency domain scattered pilot is used
Structure improves the utilization efficiency to high-speed industrial communication system communication resource and improves real-time communication, and frequency domain is continuous
The distribution of pilot configuration can not by the constraint of assignment period, can according to need neatly distribution running time-frequency resource to being connected to work
User equipment in industry communication system.
Detailed description of the invention
The attached drawing for constituting a part of this disclosure is used to provide further understanding of the disclosure, the schematic reality of the disclosure
Example and its explanation are applied for explaining the disclosure, does not constitute the improper restriction to the disclosure.For those of ordinary skill in the art
For, without creative efforts, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:
Fig. 1 shows the schematic diagram for the high-speed industrial communication system that embodiment of the present invention can be implemented within；
Fig. 2 diagrammatically illustrates the communication party applied to high-speed industrial communication system according to one embodiment of the present invention
The flow chart of method；
Fig. 3 diagrammatically illustrates the running time-frequency resource structure of the high-speed industrial communication system of embodiment according to the present invention
Schematic diagram；
Fig. 4 diagrammatically illustrates the schematic diagram of the assignment period of the running time-frequency resource of embodiment according to the present invention；
Fig. 5 diagrammatically illustrates the schematic diagram of the subcarrier of the running time-frequency resource of embodiment according to the present invention；
Fig. 6 diagrammatically illustrates pilot configuration distribution schematic diagram according to an embodiment of the present invention；
Fig. 7 shows the schematic diagram of distributed architecture of the pilot data in a subband；
Fig. 8 diagrammatically illustrates the sub-band division of the high-speed industrial communication system of embodiment according to the present invention and leads
The schematic diagram of frequency structure；
Fig. 9 diagrammatically illustrates the communication applied to high-speed industrial communication system according to one embodiment of the present invention and fills
The schematic diagram set；And
Figure 10 diagrammatically illustrates the structural schematic diagram of computer equipment according to one embodiment of the present invention.
Specific embodiment
Hereinafter, certain exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or the scope of the present disclosure, described embodiment can be modified by various different modes.
Therefore, it attached drawing and is considered essentially described below illustrative rather than restrictive.
Flow chart and block diagram in attached drawing are illustrated according to the device of various embodiments of the invention, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, program segment or code of table, a part of the module, program segment or code include one or more
For realizing the executable instruction of scheduled logic function.It should be noted that in some alternative implementations, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are actually
It can be basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It should also be as
Note that the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can use execution
The dedicated hardware based systems of defined functions or operations realizes, or can use specialized hardware and computer instruction
Combination is to realize.In addition, the optional step in following specific embodiments is shown in the form of dotted line frame for the convenience of signal
Out.
In addition, the ordinal numbers such as term " first ", " second " are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with
Explicitly or implicitly include one or more feature.In the description of the disclosure, the meaning of " plurality " is two
Or it is more than two, unless otherwise specifically defined.
In the description of the disclosure, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, it for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected: can be machine
Tool connection is also possible to be electrically connected or can mutually communicate；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the disclosure can be understood as the case may be.
Following disclosure provides many different embodiments or example is used to realize the different structure of the disclosure.In order to
The disclosure for simplifying the disclosure, is hereinafter described the component of specific examples and setting.Certainly, they are merely examples, and
And purpose does not lie in the limitation disclosure.In addition, the disclosure can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.
High-speed industrial communication system of the present invention be mainly used to solve industry spot conventional bus low bandwidth, can not be simultaneously
The problem of carrying in real time with the non real-time and complicated network structure, high-speed industrial communication system can support IPV6 address communication,
It can support the industrial control communication of time trigger, can support TSN, can support white list, depth detection and data encryption
Etc. security mechanisms.
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the disclosure, is not used to limit the disclosure.
Fig. 1 shows 100 schematic diagram of the high-speed industrial communication system that embodiment of the present invention can be implemented within.
With reference to Fig. 1, four industrial nodes, i.e. node 1, node 2, node 3 and node 4 are shown, high-speed industrial communication system 110 is passed through
It is connected with each other.Sender of the node 1 as data, the recipient of node 2, node 3 and node 4 as data are shown in Fig. 1.
Node can be any possible electronic equipment with the ability communicated by high-speed industrial communication system,
Typically, such electronic equipment also has certain data-handling capacity.For example, node can include but is not limited to industry
Computer, robot, smart phone, portable digital-assistant (PDA), laptop computer, is sought at industrial production line traffic control equipment
Other the possible equipment being likely to occur under pager, television set, camera, video recorder, GPS device and Industry Control scene.
Embodiment of the present disclosure is related to transmission of the data in high-speed industrial communication system, and work refers to mould in OS I
The physical layer of type or equivalent level are related to scheduling, tissue and communication to physical communication resources.Disclosure embodiment
Basic principle is, ofdm communication system is applied in high-speed industrial communication system, meets to high-speed industrial communication system
The demand of the high-speed data communication of system.
Fig. 2 diagrammatically illustrates the communication party applied to high-speed industrial communication system according to one embodiment of the present invention
The flow chart of method 200.
In step S210, data flow to be sent is received.The data flow to be sent can be understood as in OSI Reference Model
Higher level data, for example, come from network layer.
In step S220, the data flow to be sent is modulated to the physics of high-speed industrial communication system using OFDM technology
On multiple subbands of the communication resource, wherein each subcarrier included by subband is used to carry pilot data or business datum, and
And it sends and uses frequency domain scattered pilot structure and frequency domain CP continuous pilot structure.
Embodiment according to the present invention, physical communication resources, which are logically divided into, is divided into each OFDM symbol
Multiple subbands, each subband include multiple subcarriers.It, will be in an assignment period for using frequency domain scattered pilot structure
All OFDM symbols are divided into multiple groups, and pilot data is to be dispersedly distributed, and the pilot data is in institute in each subband
State the subcarrier that all frequency points are taken in the same position subband of each of multiple groups.For using frequency domain CP continuous pilot structure,
Frequency domain CP continuous pilot structure includes at least two subbands under same frequency range, and pilot data continuously divides at least one subband
Cloth.
Realization principle of the invention is described below with reference to Fig. 3-Fig. 6.
Fig. 3 diagrammatically illustrates the running time-frequency resource structure of the high-speed industrial communication system of embodiment according to the present invention
Schematic diagram.In Fig. 3, transverse direction represents the time, and longitudinal direction represents frequency.As shown, in a lateral direction, showing
NcA subcarrier, i.e. NcA different frequency.Element of time and frequency element are mutually orthogonal, that the two is crossed to form one
A logic communication resource is known as a subcarrier.Herein, also by all subcarriers on chronomere's (time slot)
Group is collectively referred to as an OFDM symbol.As it can be seen that an OFDM symbol includes NcA subcarrier.
Fig. 4 diagrammatically illustrates the schematic diagram of the assignment period of the running time-frequency resource of embodiment according to the present invention.With reference to figure
4, a communication resource distribution period may include M group, and M is more than or equal to 2.One group includes NuA symbol, NuMore than or equal to 1.
NuThe quantity of the user equipment in high-speed industrial communication system can be represented.
Fig. 5 diagrammatically illustrates the schematic diagram of the subcarrier of the running time-frequency resource of embodiment according to the present invention.With reference to Fig. 5,
Each symbol is divided into NsbA subband, NsbMore than or equal to 1.To which each subband may include a N1A subcarrier, N1=
Nc/Nsb。
Embodiment according to the present invention, the transmission for data flow, using the frequency domain scattered pilot structure and frequency of subband
The mixed structure of domain CP continuous pilot structure.Frequency domain CP continuous pilot structon band can be in any position of an assignment period.Frequently
Domain scattered pilot structon band can be one group of any position, if some subband of one group of configuration is frequency domain scattered pilot
Structure, then the other groups of position subbands for correspondingly configuring an assignment period are frequency domain scattered pilot structure.Fig. 6 schematically shows
Pilot configuration distribution schematic diagram according to an embodiment of the present invention is gone out, subband shown in Green indicates to use frequency domain
Scattered pilot structure, subband shown in purple indicate to use frequency domain CP continuous pilot structure, and subband shown in light gray indicates the son
Band is not used by.
According to embodiment of the present invention, the smallest allocation unit of frequency domain CP continuous pilot structure is continuously to accord with frequency range
Number N2A subband, N2More than or equal to 2, wherein at least 1 subband all places pilot tone, remaining subband places data.That is, frequency
Domain CP continuous pilot structure includes at least two subbands under same frequency range, and pilot data is continuously distributed at least one subband.
The minimum time granularity of frequency domain CP continuous pilot is with 2 subbands under frequency range, and 1 subband places pilot tone, and 1 subband sends number
According to.In one embodiment, N can be distributed to a user equipment in high-speed industrial communication system4A frequency domain CP continuous pilot
The smallest allocation unit of structure, N4More than or equal to 1.
According to embodiment of the present invention, under the logical partitioning mode of above-mentioned video resource, for using frequency domain
The subband of scattered pilot structure, the number that can be used for placing the subcarrier of pilot tone in each subband is N3It is a, N3=N1/ M, with
Meet the subcarrier that pilot data takes all frequency points in the same position subband of each of multiple groups.Each of multiple groups
Pilot frequency locations on the same position subband of group are configured as that all subcarriers that the subband includes can be covered.
In one embodiment, in frequency domain scattered pilot structure, physical communication resources are logically divided into, described
The placement location and distributed architecture of the pilot data of intersubband in each of multiple groups are different or identical.Pilot tone
Distribution of the data in subband is pectination type structure, blocky type structure or the mixed structure of both.
Fig. 7 shows the signal of pectination type structure distribution of the pilot data in a subband and blocky type structure distribution
Figure.With reference to Fig. 7, i-th of subband group in a resource allocation cycle is shown, two subbands are shown in figure.Pilot blocks exist
With pectination type structure distribution in the subband of left side, with blocky type structure distribution in the subband of right side.
In one embodiment, for distributing frequency domain scattered pilot to a user equipment in high-speed industrial communication system
Structure, every group of frequency domain scattered pilot structon band is smallest allocation unit, and every group the same as position frequency domain scattered pilot structon band
The same user equipment is distributed to, a user equipment can occupy multiple frequency domain scattered pilot structon bands in one group.
Embodiment according to the present invention uses ofdm communication system, and pilot number in high-speed industrial communication system
It is discretely distributed according in a subband.Thus, it is possible to which a subband is distributed to user in real time, have high real-time
Property.
An Illustrative embodiments of the invention are described below with reference to Fig. 8.
Fig. 8 diagrammatically illustrates the sub-band division of the high-speed industrial communication system of embodiment according to the present invention and leads
The schematic diagram of frequency structure.In the example depicted in fig. 8, the signal that the logical resource an of resource allocation cycle divides is shown
Figure.
With reference to Fig. 8,8 OFDM symbols that a resource divides the period are shown on transverse direction (representing the time), are divided
It is 4 groups, 8 subcarriers is shown on longitudinal direction (representing frequency).Each symbol is divided into 2 subbands.To scheme
In 7, a symbol includes 8 subcarriers, and each subband includes 4 subcarriers, and an assignment period includes 4 groups, one group of packet
Include 4 symbols.Every group includes 8 subbands.
In fig. 8, subband shown in 801 represents frequency domain scattered pilot structon band, wherein in 4 subcarriers, one
For carrying pilot data (being shown with light yellow), excess-three is used for bearer service data.Subband shown in 802 represents frequency domain
CP continuous pilot structon band, one of basic unit are three lateral subbands, and 4 subcarriers in one of subband are complete
Portion is for carrying pilot data.Frequency domain CP continuous pilot structon band shown in Fig. 8 is three laterally adjacent subbands, but is answered
Work as understanding, the subband for constituting frequency domain CP continuous pilot structon band can be subband horizontally spaced apart.
In the example depicted in fig. 8, in each group, 2 frequency domain scattered pilot structures wherein will be configured to by 2 subbands, 6
A subband is configured to 2 frequency domain CP continuous pilot structures, and the division unit of frequency domain CP continuous pilot structure is with the 3 of frequency range continuous symbol
A subband.
The minimum time granularity of frequency domain CP continuous pilot is 2 symbols, and 1 symbol places pilot tone, and 1 symbol sends data,
Resource utilization is 50% in this way.Therefore, when the time granularity of frequency domain CP continuous pilot is smaller, frequency domain scattered pilot structure has
Higher resource utilization.When the time granularity of frequency domain CP continuous pilot is larger, if time granularity includes 8 symbols, 1 symbol
Pilot tone is placed, 7 symbols send data, and cycle period is 8 symbols, and the resource utilization of frequency domain CP continuous pilot will be mentioned
It rises.Therefore, when the time granularity of frequency domain CP continuous pilot is larger, frequency domain scattered pilot structure has better real-time.
Therefore, embodiment according to the present invention uses frequency domain scattered pilot by allowing the mixed-arrangement of pilot configuration
Structure improves the utilization efficiency to high-speed industrial communication system communication resource and improves real-time communication, and frequency domain is continuous
The distribution of pilot configuration it is total to being connected to can not to be can according to need neatly distribution running time-frequency resource by the constraint of assignment period
User equipment on linear system system.If some user's requirement of real-time is higher, distribution frequency domain scattered pilot structure can choose
Give the user.Embodiment according to the present invention can be adapted for the occasion for having requirements at the higher level to traffic rate and message capacity.
Fig. 9 diagrammatically illustrates the communication applied to high-speed industrial communication system according to one embodiment of the present invention and fills
Set 900 schematic diagram.The device 900 includes: receiving unit, for receiving data flow to be sent and transmission unit, for benefit
The data flow to be sent is modulated to OFDM technology on multiple subbands of the physical communication resources of high-speed industrial communication system,
Wherein each subcarrier included by subband is for carrying pilot data or business datum, and the transmission of the pilot data is adopted
With frequency domain scattered pilot structure and frequency domain CP continuous pilot structure.Physical communication resources, which are logically divided into, accords with each OFDM
Number multiple subbands are divided into, each subband includes multiple subcarriers.It, will be in an assignment period in frequency domain scattered pilot structure
All OFDM symbols be divided into multiple groups, the pilot data is to be dispersedly distributed in each subband, and the pilot number
According to the subcarrier for taking all frequency points in the same position subband of each of the multiple groups.Frequency domain CP continuous pilot structure includes
With at least two subbands under frequency range, pilot data is continuously distributed at least one subband.
Figure 10 diagrammatically illustrates the structural schematic diagram of computer equipment according to one embodiment of the present invention.Figure 10 is aobvious
The computer equipment 12 shown is only an example, should not function to the embodiment of the present invention and use scope bring any limit
System.
As shown in Figure 10, computer equipment 12 is showed in the form of universal computing device.The component of computer equipment 12 can
To include but is not limited to: one or more processor or processing unit 16, system storage 28 connect different system components
The bus 18 of (including system storage 28 and processing unit 16).Computer equipment 12, which can be, is articulated in high-speed industrial communication system
Equipment on system.
Bus 18 indicates one of a few class bus structures or a variety of, including memory bus or Memory Controller,
Peripheral bus, graphics acceleration port, processor or the local bus using any bus structures in a variety of bus structures.It lifts
For example, these architectures include but is not limited to industry standard architecture (Industry Standard
Architecture, ISA) bus, microchannel architecture (Micro Channel Architecture, MCA) bus, enhancing
Type isa bus, Video Electronics Standards Association (Video Electronics Standards Association, VESA) local
Bus and peripheral component interconnection (Peripheral Component Interconnect, PCI) bus.
Computer equipment 12 typically comprises a variety of computer system readable media.These media can be it is any can be by
The usable medium that computer equipment 12 accesses, including volatile and non-volatile media, moveable and immovable medium.
System storage 28 may include the computer system readable media of form of volatile memory, such as arbitrary access
Memory (RAM) 30 and/or cache memory 32.Computer equipment 12 may further include it is other it is removable/can not
Mobile, volatile/non-volatile computer system storage medium.Only as an example, storage system 34 can be used for reading and writing not
Movably, non-volatile magnetic media (Fig. 4 do not show, commonly referred to as " hard disk drive ").It although not shown in fig 4, can be with
The disc driver for reading and writing to removable non-volatile magnetic disk (such as " floppy disk ") is provided, and non-volatile to moving
CD (such as compact disc read-only memory (Compact Disc Read-Only Memory, CD-ROM), digital video disk
(Digital Video Disc-Read Only Memory, DVD-ROM) or other optical mediums) read-write CD drive.
In these cases, each driver can be connected by one or more data media interfaces with bus 18.System storage
Device 28 may include at least one program product, which has one group of (for example, at least one) program module, these journeys
Sequence module is configured to perform the function of various embodiments of the present invention.
Program/utility 40 with one group of (at least one) program module 42 can store and store in such as system
In device 28, such program module 42 includes --- but being not limited to --- operating system, one or more application program, other
It may include the realization of network environment in program module and program data, each of these examples or certain combination.Journey
Sequence module 42 usually executes function and/or method in embodiment described in the invention.
Computer equipment 12 can also be with one or more external equipments 14 (such as keyboard, sensing equipment, display 24
Deng) communication, can also be enabled a user to one or more equipment interact with the computer equipment 12 communicate, and/or with make
The computer equipment 12 any equipment (such as network interface card, the modulatedemodulate that can be communicated with one or more of the other calculating equipment
Adjust device etc.) communication.This communication can be carried out by input/output (Input/Output, I/O) interface 22.Also, it calculates
Machine equipment 12 can also pass through network adapter 20 and one or more network (such as local area network (Local Area
Network, LAN), wide area network (Wide Area Network, WAN) communication.As shown, network adapter 20 passes through bus
18 communicate with other modules of computer equipment 12.It should be understood that although not shown in fig 4, computer equipment 12 can be combined
Using other hardware and/or software module, including but not limited to: microcode, device driver, redundant processing unit, external magnetic
Dish driving array, (Redundant Arrays of Inexpensive Disks, RAID) system, tape drive and number
According to backup storage system etc..
Processing unit 16 by the program that is stored in system storage 28 of operation, thereby executing various function application and
Data processing, such as realize a kind of real-time communication method provided by any embodiment of the invention.
In one embodiment, a kind of computer readable storage medium is provided, the computer including being stored thereon can be held
Row instruction, the executable instruction implement the various operations of embodiment according to the present invention when being executed by processor.
According to embodiment of the present disclosure, it is logical to provide a kind of high-speed industrial with multinode, high bandwidth, time-sensitive
Letter system, for the real time data of automation controls industry spot and the transmission of non-real-time data such as process control and discrete control
With application, the application such as compatible ISO/IEC/IEEE 8802-3 Ethernet, IPv6.The high-speed industrial communication system has high bandwidth
The characteristic of high real-time, remote high reliability transport, wiring and installation are simple, provide convenient network operation, support to existing
The utilization of cable assets.
It should be appreciated that various illustrative methods above-mentioned and device may be implemented to be connected to high-speed industrial communication system various
At the user equipment of system, it can use various modes to realize, for example, in some embodiments, aforementioned various devices can
To realize using software and/or firmware module, hardware module can use also to realize.It is currently known or exploitation in the future
Other modes be also it is feasible, the scope of the present invention is not limited in this respect.
Particularly, in addition to hardware embodiment, embodiments of the present invention can pass through the shape of computer program product
Formula is realized.For example, can be realized by computer program product with reference to Fig. 2 method 200 described.The computer program product
It can store in RAM, ROM, hard disk and/or any storage medium appropriate, or downloaded by network from position appropriate
Onto computer system.Computer program product may include computer code part comprising can be by processing equipment appropriate
The program instruction of execution.
It should be noted that embodiments of the present invention can be realized by the combination of hardware, software or software and hardware.
Hardware components can use special logic to realize；Software section can store in memory, by instruction execution system appropriate
System, such as microprocessor or special designs hardware execute.It will be understood by those skilled in the art that above-mentioned device
Computer executable instructions can be used and/or be included in the processor control code with method and realize, such as in such as magnetic
Disk, the mounting medium of CD or DVD-ROM, such as read-only memory (firmware) programmable memory or such as optics or electricity
Such code is provided in the data medium of subsignal carrier.The device of the invention and its module can be by such as ultra-large
The semiconductor or such as field programmable gate array of integrated circuit or gate array, logic chip, transistor etc. can be compiled
The hardware circuit realization of the programmable hardware device of journey logical device etc., can also be soft with being executed by various types of processors
Part is realized, can also be realized by the combination such as firmware of above-mentioned hardware circuit and software.
It should be noted that although being referred to several modules or submodule of device in the above detailed description, this stroke
Divide only not enforceable.In fact, embodiment according to the present invention, the feature of two or more above-described modules
It can be realized in a module with function.Conversely, the feature and function of an above-described module can be with further division
To be embodied by multiple modules.
Although describing the present invention by reference to the embodiment being presently contemplated that, it should be appreciated that the present invention is not limited to
Disclosed embodiment.On the contrary, the present invention is directed to cover in spirit and scope of the appended claims included various repair
Change and equivalent arrangements.The scope of the following claims meets most broad interpretation, to include all such modifications and equivalent knot
Structure and function.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, although referring to aforementioned reality
Example is applied the disclosure is described in detail, it for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.All essences in the disclosure
Within mind and principle, any modification, equivalent replacement, improvement and so on be should be included within the protection scope of the disclosure.
Claims (10)
1. a kind of communication means applied to high-speed industrial communication system, comprising:
Receive data flow to be sent；And
Using OFDM technology by the data flow to be sent be modulated to high-speed industrial communication system physical communication resources it is multiple
On subband, wherein each subcarrier included by subband is for carrying pilot data or business datum, and the pilot data
Transmission using subband frequency domain scattered pilot structure and subband frequency domain CP continuous pilot structure,
Wherein, the physical communication resources, which are logically divided into, is divided into multiple subbands, every height for each OFDM symbol
Band includes multiple subcarriers,
Wherein, in the frequency domain scattered pilot structure, all OFDM symbols in an assignment period are divided into multiple groups, institute
Stating pilot data is to be dispersedly distributed, and the pilot data is in the same position of each of the multiple groups in each subband
The subcarrier that all frequency points are taken in subband is set,
Wherein, frequency domain CP continuous pilot structure includes at least two subbands under same frequency range, and pilot data is at least one subband
Continuously it is distributed.
2. according to the method described in claim 1, wherein, in frequency domain scattered pilot structure, the physical communication resources are being patrolled
It is divided on volume, the placement location and distributed architecture of the pilot data of the intersubband in each of described multiple groups are different
Or it is identical, it is preferable that distribution of the pilot data in subband be pectination type structure, blocky type structure or both
Mixed structure.
3. according to the method described in claim 1, wherein, in frequency domain scattered pilot structure, the physical communication resources are being patrolled
It is divided on volume, the same position subband in every group is assigned to the same user equipment of high-speed industrial communication system, preferably
Ground, each user equipment can occupy multiple subbands in each group.
4. method according to any one of claim 1-3, wherein the physical communication resources are logically divided
For some subband for configuring a group in the multiple groups is frequency domain scattered pilot structure, while being configured in the multiple groups
Other group same position subbands be frequency domain scattered pilot structure.
5. a kind of communication device applied to high-speed industrial communication system, comprising:
Receiving unit, for receiving data flow to be sent；And
Transmission unit, for being led to the physics that the data flow to be sent is modulated to high-speed industrial communication system using OFDM technology
On the multiple subbands for believing resource, wherein each subcarrier included by subband is used to carry pilot data or business datum, and
The transmission of the pilot data uses frequency domain scattered pilot structure and frequency domain CP continuous pilot structure,
Wherein, the physical communication resources, which are logically divided into, is divided into multiple subbands, every height for each OFDM symbol
Band includes multiple subcarriers,
Wherein, in the frequency domain scattered pilot structure, all OFDM symbols in an assignment period are divided into multiple groups, institute
Stating pilot data is to be dispersedly distributed, and the pilot data is in the same position of each of the multiple groups in each subband
The subcarrier that all frequency points are taken in subband is set,
Wherein, frequency domain CP continuous pilot structure includes at least two subbands under same frequency range, and pilot data is at least one subband
Continuously it is distributed.
6. communication device according to claim 5, wherein in frequency domain scattered pilot structure, the physical communication resources
It is logically divided into, the placement location and distributed architecture of the pilot data of the intersubband in each of described multiple groups are
It is different or identical.Preferably, distribution of the pilot data in subband be pectination type structure, blocky type structure or this
The mixed structure of the two.
7. communication device according to claim 5, wherein in frequency domain scattered pilot structure, the physical communication resources
It is logically divided into, the same position subband in every group is assigned to the same user equipment of high-speed industrial communication system.
Preferably, each user equipment can occupy multiple subbands in each group.
8. the communication device according to any one of claim 5-7, wherein physical communication resources are logically divided
For some subband for configuring a group in the multiple groups is frequency domain scattered pilot structure, while being configured in the multiple groups
Other group same position subbands be frequency domain scattered pilot structure.
9. a kind of computer equipment applied to high-speed industrial communication system, comprising:
Communication interface；
Memory is stored thereon with computer executable instructions；
Processor is configured as executing the computer executable instructions to execute according to claim 1 described in any one of -4
Method.
10. a kind of computer readable storage medium, including the computer executable instructions being stored thereon, the executable instruction
Method according to any of claims 1-4 is executed when being executed by processor.
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