CN101257363A - High speed digital communication method and macrocosm fine encoded signal communicating system - Google Patents
High speed digital communication method and macrocosm fine encoded signal communicating system Download PDFInfo
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Abstract
The invention discloses a high speed digital communication method and a fine globle code signal communication system. The method is that: transmitting the difference of time, frequency, modulation method and modulation code by means of the fine globle code signal; matching the whole quasi-acceptable and transmission signals preparing to receive and transmit by the communication device and the fine globle code signal code; when transmitting the digital information, only transmitting the corresponding fine globle code signal, decoding; the digital information is realized. The system comprises a host computer CPU and a application circuit and a fine globle code signal codec, a fine globle code signal amplification accepting circuit and an antenna. Compared with the existing binary code communication, the method and the system adopts transmission mode that the quasi-transmission information and the fine globle code signal code bank are contrapositive, increases the communication efficiency by times.
Description
Technical field
The present invention relates to wired and radio digital communication method and system of a kind of modern times, particularly relate to and a kind ofly carry out data compression transmission, with method that realizes high-speed digital communication and the universe elaborated code signal communications system of implementing said method by the mode of setting up universe elaborated code signal codec storehouse.
Background technology
Modern wired and radio digital communication technology, substantially all be binary digit communication, all be that information with binary digit communication directly is modulated on the carrier wave and sends out, after receiving terminal is received carrier signal, through amplifying mixing, in put, demodulate binary digital information, use for oneself, and to paying no attention to that the different information of carrier wave are abandoned.Recently Kai Fa ultra broadband (UWB) communication technology is then without carrier wave, and the information that makes carrier wave itself slatterning in vain causes communication efficiency low, do not catch up with the needs that fast-developing communication products are used.
Present no matter be online computing, or the multimedia processing of radio communication, all be the transmission of CPU at outstanding message, can the transmission that therefore carry out high speed digital information have become the bottleneck problem of restriction modern communication technology development.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of various information that can make full use of communication signal to carry out the high-speed digital communication method and system that high speed digital information transmits.
For solving above technical problem, the technical scheme of the inventive method is: a kind of high-speed digital communication method, its key is: comprise the steps:
A, the feature that can receive whole universe elaborated code signals of transmission according to communication equipment are set up universe elaborated code signal codec storehouse, and contrast described universe elaborated code signal codec storehouse described whole universe elaborated code signals are encoded, to obtain with each universe elaborated code signal signal encoding one to one, described universe elaborated code signal codec storehouse is left in respectively in apparatus for transmitting signal and the signal receiver, and described signal encoding is corresponding one by one with the specifying information that described each universe elaborated code signal carries;
B, described apparatus for transmitting signal produce universe elaborated code signal A according to the specifying information C that will transmit by universe elaborated code signal generation recipient, and described universe elaborated code signal A is sent in the described signal receiver;
The described universe elaborated code signal A that c, described signal receiver will receive retrieves in described universe elaborated code signal codec storehouse, to determine the signal encoding B of described universe elaborated code signal A correspondence, and and then obtain specifying information C, finally realize the transmission of described specifying information C from described apparatus for transmitting signal to described signal receiver;
Behind d, the sign off, described apparatus for transmitting signal and described signal receiver keep various coded messages and rule of communication respectively, use to treat next time.
As the improvement of the present invention's method, described high-speed digital communication method also comprises and entangles a yard step:
A, described apparatus for transmitting signal are surveyed the universe elaborated code signal encoding information of being disturbed in the described universe elaborated code signal codec storehouse, and sending to described signal receiver, described apparatus for transmitting signal and described signal receiver are removed the described universe elaborated code signal encoding information of being disturbed separately;
When b, described apparatus for transmitting signal send to described signal receiver with described universe elaborated code signal A, the interference code that does not to one's name send is noted, wait for that next signal sends to described signal receiver in the lump when sending, entangle sign indicating number for described signal receiver and use;
C, described signal receiver receive signal encoding B ' the back storage of the universe elaborated code signal A ' corresponding with described universe elaborated code signal A and wait for, after receiving the interference code of next frame, carry out comprehensive, reduction, to obtain and the new one to one signal encoding B of described universe elaborated code signal A, be used for signal decoding.
Method as the present invention is improved further, and when whole universe elaborated code signals that can receive transmission to described communication equipment were encoded, its coding step was as follows:
A, whole universe elaborated code signals that communication equipment can be received transmission carry out binary coding, form the binary data that CPU can discern, and the number of described whole universe elaborated code signals is N;
B, described binary data is divided into groups, the figure place of each data set is N;
The difference of c, difference, the difference of delivery time, the difference that transmits signal modulating method or transmission signal modulation code according to transmission signal frequency size, foundation exists the universe elaborated code signal development data of one-to-one relationship, the integral body of described development data to constitute with described data set to transmit the universe elaborated code signal codec storehouse that signal is used;
D, contrast described universe elaborated code signal codec storehouse are to the described universe elaborated code signal row number of encoding.
Method as the present invention is further improved, when described universe elaborated code signal is universe time elaborated code signal, universe frequency elaborated code signal, universe phase place elaborated code signal, universe-and frequency makes up the combination of one of elaborated code signal, universe phase-frequency elaborated code signal, the universe width of cloth-frequency elaborated code signal or above universe elaborated code signal.
For implementing above method, the technical scheme of system of the present invention is: a kind of universe elaborated code signal communications system, comprise host CPU and application circuit thereof and the antenna that is connected with described application circuit, its key is: also be provided with the universe elaborated code signal codec device that connects with described application circuit between described application circuit and described antenna, also be connected with the amplification of universe elaborated code signal and accept circuit between described universe elaborated code signal codec device and described antenna.
Improvement as system of the present invention, described universe elaborated code signal codec device comprises with the universe elaborated code signal codec storehouse of described application circuit connection, accepts the universe elaborated code signal generation recipient that circuit is connected with described universe elaborated code signal amplification, and described universe elaborated code signal codec storehouse and described universe elaborated code signal generation recipient interconnect.
By implementing the present invention, can make full use of the difference of delivery time, frequency, modulator approach and the modulation code etc. of signal source signal, produce described development data, to set up universe elaborated code signal codec storehouse.By applied mathematics coding and signal of communication Methods for Coding, corresponding one by one with universe elaborated code signal in the described universe elaborated code signal codec storehouse with intending receiving the universe elaborated code signal that transmits.When receiving the described specifying information of transmission, only need the transmission signal of universe elaborated code one to one with it, carry out the transmission that signal decoding just can be realized described specifying information then.Because the signal encoding of each the universe elaborated code signal in the described universe elaborated code signal codec storehouse, all corresponding binary data group, when the information of transmission, as long as transmit a universe elaborated code signal, just can be at receiving terminal according to this signal that receives, obtain the signal encoding corresponding, and can compile out corresponding binary data group, thereby obtain described specifying information with it.Therefore, compare with existing binary number code communication, the inventive method and system have increased exponentially the efficient of communication, have solved the low problem of present digital communication speed.The working foundation of the method for the invention and system is a large amount of universe elaborated code signal, all has orthogonality, the various digital combination techniques of use that can be random, flexible configuration signal resource, avoid and the conflicting and interference of other communication equipments, make its freely work separately.Therefore, method and system of the present invention also have can with the advantage of the compatible coexistence of the existing various communication technologys.
Description of drawings
The present invention will be further described in detail below in conjunction with Figure of description, wherein:
Fig. 1 is the system construction drawing of universe elaborated code signal communications system.
Embodiment
As shown in Figure 1, a kind of universe elaborated code signal communications system, comprise host CPU and application circuit thereof and the antenna that is connected with described application circuit, between described application circuit and described antenna, also be provided with the universe elaborated code signal codec device that connects with described application circuit, between described universe elaborated code signal codec device and described antenna, also be connected with the amplification of universe elaborated code signal and accept circuit.Described universe elaborated code signal codec device comprises with the universe elaborated code signal codec storehouse of described application circuit connection, accepts the universe elaborated code signal generation recipient that circuit is connected with described universe elaborated code signal amplification, and described universe elaborated code signal codec storehouse and described universe elaborated code signal generation recipient interconnect.
Host CPU and application circuit thereof are the same with existing communication product, by keyboard, and earphone, microphone MIC, loud speaker SPK, compositions such as liquid crystal display screen LCD.What of universe elaborated code signal universe elaborated code signal codec storehouse be according to, give the communication data packets coding of CPU, and the size of pressing communication data group numerical value, provide the signal encoding of signal of communication, produce for universe elaborated code signal generation recipient and transmit signal and use; Also can be according to the signal encoding of the universe elaborated code signal that receives, the communication data that translates transmission uses to CPU.
Because of in the different signal in N position (each signal all has two states), get 1,2,3------is up to N position signal combination, the kind of its signal combination has 2 Nth power, as the coding of encode its number and N bit as many, the Fundamentals of Mathematics of Here it is universe elaborated code signal communication.The combination of N position unlike signal is carried out binary coding one by one by rule, just can form universe elaborated code signal codec library storage.When CPU transmits binary data information, earlier every N bit data information is divided into one group, the universe elaborated code signal of every group of data correspondence is sent out; Receiving terminal is a signal encoding according to its coding in the storehouse when receiving every group of universe elaborated code signal, recovers the N bit binary data information of transmission, uses for complete machine.We just are equivalent to the communication of N parallel-by-bit binary data line the same with the different signal communication in N position like this.
If we the difference of modulation digital on each signal, also regard the difference of signal as, when promptly assigning them as different signals, the kind of the meticulous signal of communication of universe will enlarge many.If the modulating data of each signal has the M kind, then each signal will become M kind signal, and its signal combination has 2
MKind; N different basis signal just becomes the kind for N*M, signal combination kind total (2
N)
M=2
N*MKind, it is the same so just to be equivalent to the communication of N*M parallel binary data wire, and signal of every transmission just has the N*M bit data and is transmitted.
If in like manner we are the difference of each signal transmission time, the difference of also regarding signal as, when promptly assigning them as different signals, the kind of the meticulous signal of communication of universe also can enlarge many, there be K as the time that each signal is transmitted, then each signal will become K kind signal, and its signal combination has 2
KKind; N different basis signal just becomes the kind for N*K, signal combination kind total (2
N)
K=2
N*KKind, it is the same so just to be equivalent to the communication of N*K parallel binary data wire, and signal of then every transmission just has the N*K bit data and is transmitted.
If we are with the method difference of signal modulation, as phase modulated, amplitude modulation(PAM), frequency modulation(FM), and their different combinations, different code checks, also treat as different transmission signals, then the quantity in universe elaborated code signal codec storehouse will be bigger, and communication efficiency will be higher.We just can by different requirements, give various a large amount of different universe elaborated code signals a plurality of different communication equipments and use like this, use various coding techniques, satisfy the demand of people's each side.
Universe elaborated code signal codec storehouse is the interface of CPU and telecommunication circuit, the signal encoding of the universe elaborated code signal that receives can be converted to corresponding binary data, use for CPU, also can be with the binary data of CPU transmission, convert the signal encoding of universe elaborated code signal to, produce for universe elaborated code signal generation recipient and send the signal use.Universe elaborated code signal codec storehouse mainly is made up of binary coded decimal coding-decoding circuit and memory cell, and its work also available software substitutes and to finish.
Universe elaborated code signal generation recipient, form by digital signal processor DSP, can be according to the coding in universe elaborated code signal codec storehouse, be created on the frequency domain uniformly-spaced, same-phase, the generator of the various signals that can send simultaneously and modulator-demodulator.The various signals of its generation have orthogonality, possess good frequency resolution and temporal resolution, sometimes also can be CI (Carrier Interference) signal, a kind of signal that very high frequency resolution and temporal resolution are arranged, modulation also has good orthogonal property in fact.It can be distinguished to solve its coding in universe elaborated code signal codec storehouse according to the different universe elaborated code signals that receive; It also can tell their coded combinations in universe elaborated code signal codec storehouse according to the various signal combination of accepting; It also can produce required various universe elaborated code signal combination according to the unlike signal coded command of accepting simultaneously.
Now, along with the development of microelectric technique, adopt field programmable gate array (FPGA) to carry out the Digital Signal Processing development rapidly.Adopt field programmable device not only to quicken time to market (TTM), also can satisfy the requirement of aspects such as the needed cost of present and of future generation portable design, performance, size, and system-level support is provided.When system clock frequency is 100MHz, only need the computing time of 1024 FFT that reset about 10 μ S.FPGA has thousands of look-up table and trigger, and therefore, the FPGA platform can utilize lower cost to reach this general dsp faster speed.Adopt the FPGA technology, can also obtain high-performance, satisfy cost requirement, and enjoy the flexibility that fast and effeciently new design is optimized.At this characteristic, newly designed a kind of FFT/IFFT processor based on parallel algorithm can be widely used in the high speed signal treatment system.So universe elaborated code signal generation recipient, also can be by realizing based on the FFT of FPGA and the hardware circuit of inverse transformation IFFT processor thereof.
Universe elaborated code signal amplifies accepts circuit, is that circuit is accepted in the broadband signal amplification of universe, no matter sending or accepting state, all constantly receive universe elaborated code signal and use to main frame.
Below by practicing of the detailed explanation the method for the invention of specific embodiment:
1, the Application Example of universe frequency elaborated code signal encoding
Each frequency fragment that we can DSP that transmit, communications receiving equipment can differentiate communication equipment, all encode one by one according to certain rules, and whole permutation and combination becomes universe frequency elaborated code signal codec storehouse, makes each coding in the storehouse, all corresponding binary data group; When the information of transmission, as long as transmit a code signal, communications receiving equipment just can compile out corresponding binary data group according to this signal that receives, and compares with existing binary number code communication, has increased exponentially the efficient of communication.
For example: the crystal frequency precision of communication equipment DSP is+/-1PPm, clock frequency is 1MHz, then temporal resolution is 10e-6 second, its frequency resolution is 1Hz, the frequency discrimination sign indicating number has 1M, uniformly-spaced, the reality of each signal of transmission of homophase modulation simultaneously has orthogonal property to cause on frequency domain, so their signal is not when having modulation, combination variety has 2e+1M, (in the N bit data, get 1,2,3--Nth power that the combination sum of----N bit data equals 2), form universe frequency elaborated code signal codec storehouse, one group of signal of then every transmission, communications receiving equipment is received is in 2e+1M the signal one.From universe frequency elaborated code signal codec storehouse, can find the 1M bit binary number information that apparatus for transmitting signal will transmit, be 1,000,000 times of the conventional digital communication technology; According to present transmission condition, frequency code is apart from narrowing down to 1KHz, and the combination variety of signal of communication also has 2e+1K, can obtain the 1K bit binary number information that apparatus for transmitting signal will transmit, be 1,000 times of the conventional digital communication technology, effectively raise communication efficiency.
By various coded combination technology, can make the unappropriated spectrum space resource of a plurality of communication common carrier equipments, because of each communication equipment in own receivable time domain-frequency domain scope, the group that can be independent of each other is compiled universe elaborated code signal codec storehouse separately, each signal that increases oneself is as much as possible taken the amount of information in generation, and do not have the problem of phase mutual interference and influence, the integrated communication amount is improved greatly, broken through the bottleneck that frequency spectrum resource can not be shared.
Universe elaborated code signal communications system is different with the existing communication system, needs to increase encoding and decoding storage system storehouse and sends signal source.
Because of present communication system, be that the data message that will send earlier is modulated on the carrier wave, amplification sends, during reception, signal receiver with the carrier signal amplification that receives, mixing, in put, demodulate data message again, use for communication equipment, it does not need to confirm any information of carrier wave; And universe elaborated code signal communications system except that confirming the demodulation modulation intelligence, also must be recognized all information of carrier wave, and according to these integrated informations, the signal encoding that identification transmits could operate as normal.Promptly in advance communication equipment the signal that receives be can be differentiated,, universe elaborated code signal codec stock and storage weaved into by the difference of feature, when sending, according to the data that will send, find the corresponding codes signal, corresponding signal amplification is sent, signal receiver is after receiving signal, the feature of recognizing signal is earlier confirmed the coding of signal with different, just can find the information of signal representative, be translated into corresponding serial data, use for communication equipment.
So it is different with processing method that they send the generation of signal, circuit is also different, universe elaborated code signal communications system, the signal source that needs to increase the meticulous encoding and decoding storage system of universe and can produce the different characteristic signal is to produce and to receive various universe elaborated code signal and combination thereof accurately.
2, during universe-frequency makes up the Application Example of elaborated code signal encoding
The frequency band of the 0-1.104MHz of twisted pair telephone is non-linear, and different frequency decay is different, and noise jamming situation difference, time delay are also different, if with the full range band as a passage, a single-frequency noise is disturbed and will be influenced whole transmission performance.And the DMT modulation system is divided into a lot of channels with whole frequency band, and each channel band is narrow, can think linearly, and each channel is according to disturbing and attenuation can be adjusted transmission bit rate automatically, the acquisition better transmission performance.Compare with carrierfree phase/amplitude modulation (CAP), quadrature amplitude modulation (QAM), Discrete Multitone modulation (DMT) all has more advantage at aspects such as signal to noise ratio, traffic rate, bandwidth availability ratio, frequency compatibility, actual performances.
The cardinal principle of ADSL DMT modulation technique is that frequency band (0-1.104MHZ) is divided into 256 orthogonal sub-channels (each subchannel takies the 4KHZ bandwidth) by the frequency indication, input signal is through Bit Allocation in Discrete and buffer memory, to import data and be divided into bit block, behind the TCM coding, carry out the sharp leaf inverse transformations of 512 point discrete Fouriers (IDFT) again and convert the signal into time domain, at this moment bit block will convert 256 QAM characters to, subsequently each bit block is added Cyclic Prefix (being used to eliminate intersymbol interference), through data modular transformation (DA) and transmitting filter signal is served channel, then receive decoding by opposite order at receiving terminal.Its flank speed: downstream signal (from the end office (EO) to user) is 9Mbps, and upward signal (from user to the end office (EO)) is 1Mbps.
Universe elaborated code signal communication technology at the working band on the twisted pair telephone too in 0-1.104MHZ, clock crystal frequency accuracy as transmitting and receiving terminal DSP is+/-1PPm, then in the 0-1.104MHZ frequency band, its frequency resolution is 1Hz, removing 0 to 4KHz gives outside the conversation use, the bandwidth that also has 1.1MHZ, we are made as 10Hz to the frequency code of signal distance, because of on frequency domain uniformly-spaced, the reality of each signal of transmission of homophase modulation simultaneously has orthogonal property, so their signal is not when having modulation, the frequency discrimination sign indicating number has 110000, the transmitting time code distance of signal is made as 1 millisecond, then each frequency code signal can become 1000 signals, resultant signal can increase to 110M signal, be greater than the inverse that sends signal time because of the frequency that sends signal again, frequency signal less than 1KHz can not transmit, actual can with signal combination have 110000000-(1000*1000)/2=109500000=109.5M at least, form comprehensive universe elaborated code of frequency-time signal codec storehouse, transmit a universe elaborated code signal as per second, signal of then every transmission, just being equivalent to 109.5M parallel binary data wire transmits once, 109.5M data are arranged, equal 109.5Mbps, decuple existing adsl communication 10Mbps.
3, the Application Example one of the comprehensive elaborated code signal encoding of universe frequency-time-sign indicating number
OFDM--OFDM (Orthogonal Frequency Division Multiplexing) is an orthogonal frequency division multiplexi, and in fact OFDM is MCM Multi-CarrierModulation, multi-carrier modulation a kind of.Its main thought is: channel is divided into some orthogonal sub-channels, converts high-speed data signal to parallel low speed sub data flow, be modulated on each subchannel and transmit.Orthogonal signalling can separately can reduce the phase mutual interference ICI between the subchannel like this by adopt correlation technique at receiving terminal.Signal bandwidth on each subchannel is less than the correlation bandwidth of channel, so can regard the flatness decline as on each subchannel, thereby can eliminate intersymbol interference.
Table 1 802.16 schemes
| 802.16-2004(fixed) | 802.16e(mobile) |
| Single Carrier | Single Carrier |
| OFDM 256FFT | OFDM 256FFT |
| OFDMA2048FFT | OFDM 2048FFT |
| sOFDMA 1024FFT | |
| sOFDMA 512FFT | |
| sOFDMA 128FFT |
OFDMA is the expansion of OFDM, elects the modulation scheme of wireless mobile communications as by WiMAX Forum, has carried out standardization (as above shown in the table 1) according to IEEE at the standard of lEEE 802.16-2004 (fixed line) and 802.12e (moving) WiMAX again afterwards.
The RF tuning precision of OFDM standard-required subscriber station (subscriber station) must reach 2% of subcarrier spacing.1.75MHz channel subcarrier spacing minimum is 7.8kHz.2% required precision means that subscriber station must be able to reach the tuning precision of 156Hz.If the operating frequency of radio frequency is 3.6GHz, just represent it must be tuned to 0.04ppm.In addition, the absolute frequency precision of base station be defined as+/-8ppm.Therefore, the RF transceiver must carry out tuning on very big frequency range, and has fabulous resolution.In most cases, the FREQUENCY CONTROL of subscriber station realizes by voltage control, temperature-compensating, crystal oscillator (VCTCXO).Except satisfying tuning and resolution requirement, the phase noise of VCTCXO is also very important, because it is the main reference clock of whole radio frequency, and may produce significant impact to overall phase noise.Satisfy these requirements, essential careful selection VCTCXO.
At service band is 2.3 to 2.7GHz and 3.3 to 3.8GHz, fixedly WiMAX system maximum rate be 52.3Mbit/s (64QAM, 10MHz), the mobile WiMAX system maximum rate be 157.5Mbit/s (64QAM, 28MHz).
Universe elaborated code signal communication technology is in 2.3 to 2.7GHz and 3.3 to 3.8GHz frequency ranges, in the channel width of every 10MHz, DSP clock crystal frequency accuracy as communication equipment is+/-1PPm, its frequency resolution is 2.3～2.7KHz and 3.3～3.8KHz, we are the frequency code distance with 4KHz, and the frequency discrimination sign indicating number has 10000000/4000=2500, and the transmitting time code distance of signal is made as 1 millisecond, then each frequency code can become 1000 signals, and the sum frequency signal can increase to 2.5M signal.If the modulation code check of each signal is 15bit/s, just has 2
15Plant different signals, resultant signal can increase to (2
15) a * 2.5M=81.91G different signal, form the comprehensive universe elaborated code signal codec storehouse of frequency-time-sign indicating number.Uniformly-spaced, the reality modulation that the while homophase sends each signal has orthogonal property to cause on frequency domain, is to reduce to disturb, and we then have 819.1M code combination with number combination of 100 signals transmission.Transmit a universe elaborated code signal as per second, signal of then every transmission, just being equivalent to 819.1M parallel binary data wire transmits once, 819.1M data are arranged, equal 819.1M bps, much larger than the maximum communication code check 52.3Mbit/s of fixing and mobile WiMAX system (64QAM, 10MHz) and 157.5Mbit/s (64QAM, 28MHz).
4, the Application Example two of the comprehensive elaborated code signal encoding of universe frequency-time-sign indicating number
IEEE802.15.3a working group is that its purpose is that the physical layer standard of 10m with the 110-480Mbps speed of interior short distance WPAN supported in research as the replenishing of the high-speed physical layer of 802.15.3.That is to say that IEEE802.15.3a is a physical layer standard, the MAC layer standard of its WPAN is consistent with IEEE802.15.3.802.15.3a mainly contain two motions of DS-UWB technology and MB-OFDM technology now, wherein the MB-OFDM technology gets the upper hand, we just compare with it.
Set up MBOA alliance by several major companies such as Intel initiation and TI, Nokia in January, 2004, and its major technique basis is MB-OFDM (as shown in table 2), in September, 2004 more than 180 families of existing member company.The MB-OFMA technology is the explanation according to the FCC standard, and the 3.1-10.6GHz frequency range is divided into 14 frequency ranges, 5 groups of frequency bands, and preceding 4 groups of frequency bands are made up of 3 frequency ranges respectively, and the 5th groups of frequency bands is made up of 2 frequency ranges.The bandwidth of each frequency range is 528MHz.The transmission of system can reach 53.3,80,110,160,200,320,400 and 480Mbps.Each frequency range is divided into 128 subcarriers, and wherein 122 is data-modulated and pilot sub-carrier.Adopt the convolutional encoding of forward error correction (FEC), code check is respectively 1/3,11/32,1/2,5/8 and 3/4.
Each frequency range is used time-frequency OFDM (TFI-OFDM) mode that interweaves altogether in the system, allows each UWB frequency range is divided into the narrow band channel of one group of quadrature.Its feature is spectrum utilization height, frequency range flexible configuration, speed favorable expandability.Because the symbol period of OFDM has increased, this modulation system can reduce the influence of ISI effectively, but the raising of this performance is the complexity with transceiver is cost, but also will consider the influence of inter-carrier interference (ICI) and the linear restriction condition of amplifying circuit etc.
The suggestion of table 2MB-OFDM physical layer
Universe elaborated code signal communication technology is the same with it, and the 3.1-10.6GHz frequency range is divided into 14 frequency ranges, 5 groups of frequency bands, and preceding 4 groups of frequency bands are made up of 3 frequency ranges respectively, and the 5th groups of frequency bands is made up of 2 frequency ranges.The bandwidth of each frequency range is 528MHz.Each frequency range is divided into 128 subcarriers, then in a subcarrier 528/128=4.125MHz channel width, DSP clock crystal frequency accuracy as communication equipment is+/-1PPm, its frequency resolution is 4.125Hz, with 10Hz is the frequency code distance, and the frequency discrimination sign indicating number has 4125000/10=412.5K; The transmitting time code distance of signal is made as 1 millisecond, and then each frequency code can become 1000 signals, and the sum frequency signal can increase to 412.5M signal.Uniformly-spaced, the reality modulation that the while homophase sends each signal has orthogonal property to cause, if the modulation code check of each signal is 10bit/s on frequency domain, difference with modulation digital on each signal, the difference of also regarding signal as is promptly assigned them as different signals, just has 2
10Plant different signals, resultant signal can increase to (2
10) * 412.5M=442.4G kind, form the comprehensive universe elaborated code signal codec storehouse of frequency-time-sign indicating number.Disturb for reducing, we transmit a number combination with 100 signals, 4.424G code combination then arranged, transmit a universe elaborated code signal, signal of then every transmission as per second, just being equivalent to 4.424G parallel binary data wire transmits once, 4.424G data are arranged, equal 4.424Gbps, in the 3.1-10.6GHz of whole ultra broadband UWB frequency range, the communication code check is 14*128*4.424Gbps=7927.808Gbps, far surpasses the communication code check 480Mbit/s of the UWB communication technology.
Claims (7)
1, a kind of high-speed digital communication method is characterized in that: comprise the steps:
A, the feature that can receive whole universe elaborated code signals of transmission according to communication equipment are set up universe elaborated code signal codec storehouse, and contrast described universe elaborated code signal codec storehouse described whole universe elaborated code signals are encoded, to obtain with each universe elaborated code signal signal encoding one to one, described universe elaborated code signal codec storehouse is left in respectively in apparatus for transmitting signal and the signal receiver, and described signal encoding is corresponding one by one with the specifying information that described each universe elaborated code signal carries;
B, described apparatus for transmitting signal produce universe elaborated code signal A according to the specifying information C that will transmit by universe elaborated code signal generation recipient, and described universe elaborated code signal A is sent in the described signal receiver;
The described universe elaborated code signal A that c, described signal receiver will receive retrieves in described universe elaborated code signal codec storehouse, to determine the signal encoding B of described universe elaborated code signal A correspondence, and and then obtain specifying information C, finally realize the transmission of described specifying information C from described apparatus for transmitting signal to described signal receiver;
Behind d, the sign off, described apparatus for transmitting signal and described signal receiver keep various coded messages and rule of communication respectively, use to treat next time.
2, high-speed digital communication method according to claim 1 is characterized in that: also comprise and entangle a yard step:
A, described apparatus for transmitting signal are surveyed the universe elaborated code signal encoding information of being disturbed in the described universe elaborated code signal codec storehouse, and sending to described signal receiver, described apparatus for transmitting signal and described signal receiver are removed the described universe elaborated code signal encoding information of being disturbed separately;
When b, described apparatus for transmitting signal send to described signal receiver with described universe elaborated code signal A, the interference code that does not to one's name send is noted, wait for that next signal sends to described signal receiver in the lump when sending, entangle sign indicating number for described signal receiver and use;
C, described signal receiver receive signal encoding B ' the back storage of the universe elaborated code signal A ' corresponding with described universe elaborated code signal A and wait for, after receiving the interference code of next frame, carry out comprehensive, reduction, to obtain and the new one to one signal encoding B of described universe elaborated code signal A, be used for signal decoding.
3, according to claim 1 or 2 described high-speed digital communication methods, it is characterized in that: when whole universe elaborated code signals that can receive transmission to described communication equipment were encoded, its coding step was as follows:
A, whole universe elaborated code signals are carried out binary coding, form the binary data that CPU can discern, the number of described whole universe elaborated code signals is N;
B, described binary data is divided into groups, the figure place of each data set is N;
C, set up the universe elaborated code signal development data that have one-to-one relationship with described data set according to the difference that transmits the signal frequency size, the difference of delivery time, the difference that transmits the different of signal modulating method or transmit the signal modulation code, the integral body of described development data constitutes and transmits the universe elaborated code signal codec storehouse that signal is used;
D, contrast described universe elaborated code signal codec storehouse are to the described universe elaborated code signal row number of encoding.
4, high-speed digital communication method according to claim 3 is characterized in that: when described universe elaborated code signal is universe time elaborated code signal, universe frequency elaborated code signal, universe phase place elaborated code signal, universe-and frequency makes up the combination of one of elaborated code signal, universe phase-frequency elaborated code signal, the universe width of cloth-frequency elaborated code signal or above universe elaborated code signal.
5, according to claim 1 or 2 described high-speed digital communication methods, it is characterized in that: when described universe elaborated code signal is universe time elaborated code signal, universe frequency elaborated code signal, universe phase place elaborated code signal, universe-frequency makes up the combination of one of elaborated code signal, universe phase-frequency elaborated code signal, the universe width of cloth-frequency elaborated code signal or above universe elaborated code signal.
6, a kind of universe elaborated code signal communications system, comprise host CPU and application circuit thereof and the antenna that is connected with described application circuit, it is characterized in that: between described application circuit and described antenna, also be provided with the universe elaborated code signal codec device that connects with described application circuit, between described universe elaborated code signal codec device and described antenna, also be connected with the amplification of universe elaborated code signal and accept circuit.
7, universe elaborated code signal communications system according to claim 6, it is characterized in that: described universe elaborated code signal codec device comprises with the universe elaborated code signal codec storehouse of described application circuit connection, accepts the universe elaborated code signal generation recipient that circuit is connected with described universe elaborated code signal amplification, and described universe elaborated code signal codec storehouse and described universe elaborated code signal generation recipient interconnect.
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| CN106688201A (en) * | 2014-09-16 | 2017-05-17 | 三菱电机株式会社 | Method and system for transmission of data over optical super-channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106688201A (en) * | 2014-09-16 | 2017-05-17 | 三菱电机株式会社 | Method and system for transmission of data over optical super-channel |
| CN106688201B (en) * | 2014-09-16 | 2019-07-30 | 三菱电机株式会社 | For transmitting the method and system of data by light hyper channel |
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