CN106487481A - Many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit and method - Google Patents
Many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit and method Download PDFInfo
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- CN106487481A CN106487481A CN201610866362.8A CN201610866362A CN106487481A CN 106487481 A CN106487481 A CN 106487481A CN 201610866362 A CN201610866362 A CN 201610866362A CN 106487481 A CN106487481 A CN 106487481A
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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
- H04L1/0059—Convolutional codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/7163—Spread spectrum techniques using impulse radio
- H04B1/7176—Data mapping, e.g. modulation
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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
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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
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
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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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
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Abstract
The present invention provides a kind of many arrays multiplexing and encodes wireless ultra-wideband DEU data exchange unit and method, and described device includes：Convolution module, for carrying out convolution algorithm by input data；Piercing module, for shortening character length to change the transfer rate of data after the convolution algorithm by bit steal；Deinterleaving block, for carrying out staggered process to prevent bursty errors by the data after puncture；Multiplexing coding module, for being divided into many array datas bag by the data after staggered process；Multiple OFDM modulation modules, are modulated at different frequency range transmission according to time-frequency interleaved code respectively for many array datas bag after encoding the multiplexing；Multiple UWB radio-frequency modules, carry out UWB radio frequency processing for many array datas bag after modulating OFDM.The device can compatible script MB OFDM UWB equipment, but the multiplicity gain of lifting channel space transporting, so as to obtain many times of transfer rates.
Description
Technical field
The application is related to carrierfree communication technical field, and more particularly to a kind of many arrays multiplexing encodes wireless ultra-wideband data
Switch and method.
Background technology
UWB (Ultra Wide Band) is a kind of no-load communication techniques, using the non-sinusoidal waveform of nanosecond to picosecond level
Burst pulse transmission data.By transmitting the signal of extremely low power on wider frequency spectrum, UWB can be real in the range of 10 meters or so
The message transmission rate of existing hundreds of Mbit/s to several Gbit/s, with strong anti-interference performance, transfer rate is high, and power system capacity is sent out greatly
The advantages of sending power very little.UWB system emission power is very little, and communication equipment can be with the transmission power less than 1mW with regard to energy
Communication is realized, low transmitting power can also greatly prolong the system power supply working time.And, transmission power is little, its electromagnetism amplitude
Penetrate the impact to human body also can very little, therefore the application prospect of UWB technology is very wide.
The relevant criterion of UWB technology is broadly divided into leading direct sequence UWB (the Direct Sequence of Freescale
UWB, DS-UWB) and leading Mb-ofdm UWB (Multi-band OFDM, the MB-OFDM- of Texas Instrument
UWB), and MB-OFDM-UWB advantage 528MHz frequency range be far below DS-UWB (differing from three times), and ADC (mould revolution), DAC (number
Revolving die) in worked with lower speed, 1.5 times of power consumption can be lacked.
However, the commercially produced product due to a variety of causes based on UWB technology is actually rare, and the transmission of existing NFC chip
Speed about 424Kbps, access speed are slow.With the development of the technology such as multimedia and mobile terminal, the biography to UWB commercially produced product
Defeated speed is put forward higher requirement.
Content of the invention
The present invention provides a kind of many arrays multiplexing and encodes wireless ultra-wideband DEU data exchange unit and method, existing to solve
The problem of transfer rate is improved on the basis of UWB technology.
This application provides following scheme：
A kind of many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, including：
Convolution module, for carrying out convolution algorithm by input data；
Piercing module, for shortening character length to change the biography of data after the convolution algorithm by bit steal
Defeated speed；
Deinterleaving block, for carrying out staggered process to prevent bursty errors by the data after puncture；
Multiplexing coding module, for being divided into many array datas bag by the data after staggered process；
Multiple OFDM modulation modules, for many array datas bag after encoding the multiplexing respectively according to time-frequency interleaved code
It is modulated at different frequency range transmission；
Multiple UWB radio-frequency modules, carry out UWB radio frequency processing for many array datas bag after modulating OFDM.
The multiplexing coding module includes：The many array control units of dynamic, package buffer, frequency domain synchronization encoder；Wherein,
The many array control units of dynamic, for being multi-group data according to control flag by the data dynamic cutting after staggered process
Bag, the control flag are shaken hands acquisition by multiple flag monitor and dynamic many array control units of receiving terminal；
Package buffer, for depositing the multi-group data bag after dynamic cutting；
Frequency domain synchronization encoder, for the multi-group data bag is carried out frequency domain synchronization process, produces multistage synchrodata
Wrap and send to OFDM modulation module.
The OFDM modulation module includes：Spatial mapper, deserializer, inversefouriertransform device, digital to analog converter
With the staggered OFDM modulator of time-frequency；Wherein, each array data bag is interlocked by the staggered OFDM modulator of the time-frequency according to time-frequency
Code jumps to different band transmissions.
Described many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, also includes：Multiple transmitting antennas, with reception
The reception antenna pairing work at end, each pair Antenna Operation are processed in UWB radio-frequency module described in different fixed frequency band synchronous transfer
Many array datas bag signal afterwards.
Preferably, also include：Encrypting module, is input into convolution module again using AES encryption algorithm after being encrypted to data.
Accordingly, the present invention also provides a kind of many arrays multiplexing and encodes wireless ultra-wideband DEU data exchange unit, including：
Multiple UWB radio-frequency modules, for migrating UWB radiofrequency signal to base band；
Multiple OFDM demodulation modules, for many array datas bag of baseband signal is decoded according to time-frequency interleaved code；
Multiplexing decoder module, for merging into serial data by many array datas bag reduction after OFDM demodulation；
De-interlacing module, for carrying out release of an interleave process by decoded for multiplexing data；
Solution piercing module, carries out solving puncture process for the data after processing release of an interleave, supplies character with bit insertion
To recover original data length；
Dimension bit decoder module, carries out the decoding process of convolution algorithm for the data after processing solution puncture.
The multiplexing decoder module includes：Multiple flag monitor, package merge buffer, frequency domain synchronization decoder；Its
In,
Frequency domain synchronization decoder, for carrying out frequency domain synchronization decoding process by many array datas bag after OFDM demodulation；
Multiple flag monitor, for shaking hands with many array control units of the dynamic of receiving terminal, according to the control flag for monitoring
Mark to package merging buffer and send merging control instruction；
Package merges buffer, for being included simultaneously according to many array datas of the merging control instruction.
The OFDM demodulation module includes：Inverse Spatial mapper, parallel-to-serial converter, Fourier transformer, analog-digital converter
With the staggered ofdm demodulator of time-frequency；Wherein, the time-frequency interlocks ofdm demodulator by many array datas bag according to time-frequency interleaved code
It is demodulated reduction treatment.
Described many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, also includes multiple reception antennas, with transmitting
The transmitting antenna pairing work at end, each pair Antenna Operation is in different fixed frequency band synchronous transfer many array datas bag signals.
Preferably, also include AES deciphering module, will tie up the decoded data of bit carries out AES decryption processing.
Accordingly, the present invention also provides a kind of many arrays multiplexing and encodes wireless ultra-wideband DEU data exchange unit, including：
Convolution coding/decoding module, for data being carried out convolution algorithm in transmitting terminal, in receiving terminal using dimension bit arithmetic
Carry out deconvolution process；
Coding/decoding module is punctured, for shortening character length to change through the convolution in transmitting terminal by bit steal
The transfer rate of data after computing, supplies character to recover original data length in receiving terminal with bit insertion；
Staggered coding/decoding module, for the data after puncture being carried out the process that interlocks in transmitting terminal, in transmitting terminal by multiplexing
Decoded data carry out release of an interleave process, to prevent bursty errors；
Multiplexing coding/decoding module, for the data after staggered process being divided into many array datas bag in transmitting terminal, is connecing
Many array datas bag reduction after OFDM demodulation is merged into serial data by receiving end；
Multiple OFDM modulation /demodulation modules, for many array datas bag after the multiplexing is encoded by transmitting terminal respectively according to
Different frequency range transmission is modulated at according to time-frequency interleaved code, in receiving terminal by many array datas bag of baseband signal according to time-frequency interleaved code
It is decoded；
Multiple UWB radio-frequency modules, for the UWB radio frequency processing of data.
The multiplexing coding/decoding module is specifically included：The multiplexing decoding mould of the multiplexing coding module of transmitting terminal and receiving terminal
Block, the multiplexing coding module, for the data after staggered process are divided into many array datas bag, the multiplexing decodes mould
Block, for merging into serial data by many array datas bag reduction after OFDM demodulation.
Also include AES encryption deciphering module, process is encrypted and decrypted for the data respectively to being input into and export.
Accordingly, the present invention also provides a kind of many arrays multiplexing and encodes wireless ultra-wideband method for interchanging data, and its feature exists
In comprising the following steps：
Convolutional encoding：Input data is carried out convolution algorithm；
Puncture coding：Character length is shortened to change the transmission speed of data after the convolution algorithm by bit steal
Rate；
Interleaved code：Data after puncture are carried out staggered process to prevent bursty errors；
Multiplexing is encoded：Data after staggered process are divided into many array datas bag；
OFDM is modulated：Many array datas bag after the multiplexing is encoded is modulated at different frequencies according to time-frequency interleaved code respectively
Section transmission；
UWB radio-frequency transmissions：Many array datas bag after OFDM is modulated passes through multiple after carrying out UWB radio frequency processing respectively
Penetrate antenna transmitting；
UWB radio frequency reception：The UWB radiofrequency signal received from reception antenna is migrated to base band.
OFDM demodulation：Many array datas bag of baseband signal is decoded according to time-frequency interleaved code；
Multiplexing is decoded：Serial data is merged in many array datas bag reduction after OFDM demodulation；
Release of an interleave is processed：Decoded for multiplexing data are carried out release of an interleave process；
Solution puncture is processed：Data after release of an interleave is processed carry out solving puncture process, supply character with extensive with bit insertion
Restore the data length of coming；
Dimension bit decoding：Data after solution puncture is processed carry out the decoding process of convolution algorithm.
The multiplexing coding includes：Data after staggered process are divided into multi-group data bag and carry out producing after frequency domain synchronization
By Monitoring and Controlling flag receiving terminal and transmitting terminal, raw multi-stage data bag, determines that available frequency band completes to shake hands.
The multiplexing decoding includes：The many array datas bag for receiving is carried out frequency domain synchronization and decodes and merge into data
By Monitoring and Controlling flag receiving terminal and transmitting terminal, string, determines that available frequency band completes to shake hands.
Described many arrays multiplexing encodes wireless ultra-wideband method for interchanging data, also includes to being input into number before convolutional encoding
According to AES encryption step, dimension bit decoding after also include the AES decoding step to receiving data.
The apparatus and method provided by the present invention, multiplexing coding module are processed data into many array datas bag and lead to respectively
Later continue multiplexing OFDM modulation module and multiple radio-frequency modules send, the number of arrays of actual transmissions and frequency range are by transmitting terminal and reception
End is shaken hands and is together decided on, and for existing MB-OFDM UWB technology, it is (multigroup that data are divided into many array synchronization packet
And multistageization) it is sent to transmitting after UWB radio frequency processing after OFDM again, and many array synchronization packet is entered in intelligentized mode
The transmission of row parallel synchronous, the transmitting of each pair antenna and reception, by the multiplexing coding module control of frequency band control front end, compatible script
MB-OFDM UWB equipment, but lifting channel space transporting multiplicity gain, so as to obtain many times of transfer rates.
The present invention application scenarios, data in the range of 10 centimeters based on NFC (Near Field Communication)
Exchange and all transmission datas are encrypted using AES256 hardware, mode is communicated wirelessly using UWB and combines Chip On System
(COS) module, realizes the NFC data communication device of high-speed transfer, advanced encryption, can lift various mobile devices in encryption
Property, autgmentability and compatibility consider under rapid data transmission scheme.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for using is needed to be briefly described, it should be apparent that, drawings in the following description are only some enforcements of the application
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the schematic diagram of the ultra-wideband DEU data exchange unit that the embodiment of the present application one is provided；
Fig. 2 is the schematic diagram of the ultra-wideband DEU data exchange unit that the embodiment of the present application one is provided；
Fig. 3 is the schematic diagram of the ultra-wideband DEU data exchange unit that the embodiment of the present application one is provided；
Fig. 4 is the schematic diagram of the ultra-wideband DEU data exchange unit that the embodiment of the present application two is provided；
Fig. 5 is the schematic diagram of the ultra-wideband DEU data exchange unit that the embodiment of the present application three is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, the every other embodiment obtained by those of ordinary skill in the art, belong to the application protection
Scope.
When implementing, when commodity list object information is provided, the suggestion sale price of merchandise items can also be provided
Lattice information, so, first user can determine therefrom that suitable selling price.Specifically, with regard to advising selling price, Ke Yishi
In by recording to historical sales, merchandise items corresponding sales situation in various selling prices carries out counting acquisition.When
So, can also obtain by other means, for example, can be that artificial mode is configured, etc..
Embodiment one
As shown in figure 1, the present invention provides a kind of many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, when the dress
When being set to transmitting terminal, including：Convolution module 11, piercing module 12, deinterleaving block 13, multiplexing coding module 14, multiple OFDM are adjusted
Molding block 15 and multiple UWB radio-frequency modules 16, wherein：
Convolution module 11 (Convolutional Encoder), for carrying out convolution algorithm by input data；Number will be input into
Convolution algorithm is carried out according to impulse response signal, input k metadata exports n bit new data, and convolution module is with convolutional code
(Convolutional Code, CC) enters row operation with the continuous different pieces of information being input into and produces new data, in the volume of convolutional code
During code, input information bits are carried out with block encoding, the coding output bit information not only with the packet of each code character
Bit is relevant, also relevant with the information bit of other packets of previous instant.
The convolution module 11 includes adder, shift registor and steering gear.
Piercing module 12 (Puncture Encoder), for shortening character length to change through institute by bit steal
State the transfer rate of data after convolution algorithm；Character is supplied to recover former with bit insertion (Bit Insertion) in receiving terminal
Carry out length.
Deinterleaving block 13 (Interleaver), for carrying out staggered process to prevent sudden difference by the data after puncture
Mistake, for preventing a large amount of continuous mistakes once to occur；The purpose of interleaved code be the burst error longer one be separated into
Machine mistake, then random error is eliminated with the coding techniques for correcting random error, interleave depth is bigger, then dispersion is bigger, resists prominent
Send out error capability also stronger.
Multiplexing coding module 14, for being divided into many array datas bag (M Array, such as M by the data after staggered process
=4).As shown in Fig. 2 the multiplexing coding module 14 is specifically included：
The many array control units 141 (Dynamic Multi-Array Controller) of dynamic, for according to control flag
Data dynamic cutting after staggered process is multi-group data bag (M Group, such as M=4), the control flag is by receiving terminal
Multiple flag monitor and dynamic many array control units shake hands acquisition；Package buffer 142 (Packet Chopper),
For depositing the multi-group data bag after dynamic cutting；Frequency domain synchronization encoder 143 (Packet Encoder), for will be described many
Group packet carries out frequency domain synchronization process, produces multistage synchronization packets (M Degree, such as M=4) and sends to OFDM and adjusts
Molding block.
In the present embodiment, the advance data of transmitting terminal are divided into M array packet (M Array, such as M=4) and adjust through follow-up
Receiving terminal is issued after system, meanwhile, the control flag of many array control units 141 of the multiple flag monitor real-time monitoring of receiving terminal dynamic
Mark, determines to pass to carry out multiplexing encoding and decoding using how many arrays (determining the M value in final data transmission) by dohandshake action
Transmission of data, such as transmitting terminal send M array packet (M=4) in advance, and receiving terminal monitors control flag and through shaking hands really
After recognizing, determine to carry out multiplexing encoding and decoding transmission data with N number of (N=3) array data bag.
The control flag refers to a control frequency range encoded signal, judges for transmitting terminal and receiving terminal and determines which has
Spendable frequency range (Frequency Channel).
Described shaking hands specifically includes：Multiple flag monitor monitors control flag, transmitting terminal and receiving terminal to therein
Control frequency range encoded signal is compared, and completes to shake hands if comparison is errorless, and the frequency range determined according to the control flag
It is transmitted and receives, duplicate acknowledgment frequency range encoded signal if the failure of shaking hands, until completes to shake hands.
In the present embodiment, many array datas bag is actually multi-group data bag and adds the process of multistage synchronous coding, defeated
The data for entering multiplexing coding module 14 monitor handshaking information according to control flag to judge to be divided into M group packet, through overfrequency
The synchronous Calculus Encoding of domain synchronization encoders 143 produces M rank synchronization packets, is stored in the synchrodata of frequency domain synchronization encoder 143
In buffer (not shown).
Wherein, " multigroup " refers to split transmission data in point mode such as fixing, and " multistage " is referred to after frequency domain synchronization
Orthogonal data be changed into multistage, " many arrays " refers to be stored in multi-group data can be among the array of dynamic change and multistageization.
Multiple OFDM modulation modules 15, interlock according to time-frequency respectively for many array datas bag after encoding the multiplexing
Code is modulated at different frequency range transmission.
As shown in figure 3, the OFDM modulation module 15 includes：151 (Constellation of Spatial mapper
Mapping), 152 ((serial/parallel, S/P), 153 (N-Inverse Fast of Fourier transformer of deserializer
Fourier Transform, N-IFFT), digital to analog converter 154 (Digital to Analog Converter, DAC) and when
Staggered OFDM modulator 155 (Time Frequency Interleaved Code OFDM, TFI-OFDM) of frequency；Wherein, described
Each array data bag is jumped to different band transmissions according to time-frequency interleaved code by the staggered OFDM modulator 155 of time-frequency.
After Spatial mapper 151 is with four phase places (Quaternary Phase Shift Keying, QPSK) space reflection,
Serial data is carried out serioparallel exchange coding, enters the OFDM modulation operation of N-IFFT position, each number of traditional OFDM serial
According to Bao Jun in same frequency range, and each packet of TFI-OFDM (Time Frequency Interleaved Code OFDM)
Different band transmissions are jumped to according to time-frequency interleaved code, and Cyclic Prefix (Cyclic Prefix) is added so that anti-interference rate is improved, with
When each packet add protection interval (Guard Interval) to be adjusted to different frequency ranges to ensure the packet of each array；
When receiving terminal is decoded, general synchronize decoded packet data using time-frequency interleaved code, then with N-FFT inverse operation, according to orthogonal
Principle parses the packet of each channel, and is reduced to original serial data (Data Stream) by parallel serial conversion module.
Multiple UWB radio-frequency modules 16, carry out UWB radio frequency processing for many array datas bag after modulating OFDM and then lead to
Cross antenna transmission.
The device provided by this enforcement, multiplexing coding module process data into many array datas bag respectively by follow-up
Multiplexing OFDM modulation module and multiple radio-frequency modules send, and the number of arrays of actual transmissions and frequency range are shaken hands by transmitting terminal and receiving terminal
Together decide on, for existing MB-OFDM UWB technology, it is (multigroup and multistage that data are divided into many array synchronization packet
Change) be sent to after OFDM again and launch after UWB radio frequency processing, and many array synchronization packet carried out in intelligentized mode parallel
Synchronous transfer, the transmitting of each pair antenna and reception, by the multiplexing coding module control of frequency band control front end, the MB- of compatible script
OFDM UWB equipment, but the empty multiplicity gain with transporting of lifting channel, so as to obtain many times of transfer rates.
As shown in figure 1, the present invention provides a kind of many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, when the dress
When being set to receiving terminal, specifically include：
Multiple UWB radio-frequency modules 16, for migrating UWB radiofrequency signal to base band；Multiple OFDM demodulation modules 17, are used for
Many array datas bag of baseband signal is decoded according to time-frequency interleaved code；Multiplexing decoder module 18, for by OFDM demodulation
Serial data is merged in many array datas bag reduction afterwards；De-interlacing module 19, for carrying out solution friendship by decoded for multiplexing data
Fault is managed；Solution piercing module 20, carries out solving puncture process for the data after processing release of an interleave, supplies character with bit insertion
To recover original data length；Dimension bit decoder module 21, carries out convolution algorithm for the data after processing solution puncture
Decoding process.
The dimension ratio decoder module 21 is the reverse operation of transmitting terminal convolution module 11, and the solution piercing module 20 is transmitting
The inverse operation of end piercing module 12, the de-interlacing module 19 are the inverse operation of transmitting terminal deinterleaving block.
As shown in Fig. 2 the multiplexing decoder module 18 is specifically included：Multiple flag monitor 181, package merge buffer
183, frequency domain synchronization decoder 182；Wherein：
The frequency domain synchronization decoder 182, for carrying out frequency domain synchronization decoding by many array datas bag after OFDM demodulation
Process；Multiple flag monitor 181, for shaking hands with many array control units of the dynamic of receiving terminal, according to the control flag for monitoring
Mark to package merging buffer 183 and send merging control instruction；Package merges buffer 183, for according to the merging
The many array datas of control instruction are included simultaneously.
As shown in figure 3, the OFDM demodulation module 17 includes：Inverse Spatial mapper 171, parallel-to-serial converter 172, Fourier
Converter 173, analog-digital converter 174 and time-frequency interlock ofdm demodulator 175；Wherein, the staggered ofdm demodulator 175 of the time-frequency
Many array datas bag is demodulated reduction treatment according to time-frequency interleaved code.
The present embodiment described device has the advantages that low-power consumption, anti-interference and transfer rate are high.
In general, the MB-OFDM UWB standard that transmission power is specified with FCC, can reach in 10 meters of in the distance
The transfer rate of 100Mbps, then can reach 480Mbps, and applies the device of the present embodiment in 1 meter, transfer rate can be improved
To M times (then speed improves M times to be processed as M array packet), be conducive to the transmission of multi-medium data.With 4 times of calculating it is then
1920Mbps.This device is worked under the power less than 200 microwatts, not as good as 5/1000ths power consumptions of WiFi, extremely power saving.
Further, since the radio-frequency pulse of this device is very short, frequency range is very wide, then the signal of multi-path transmission can be avoided to do
Problem is disturbed, while short and weak pulse and other wireless communication techniques, what such as WiFi, mobile communication, microwave etc. produced interference can
Energy property is greatly lowered.
Embodiment two
The present embodiment provides a kind of many arrays multiplexing and encodes the scheme that wireless ultra-wideband DEU data exchange unit is more highly preferred to, ginseng
As shown in Figure 4, it is with respect to the difference of embodiment one, also includes：Multiple transmitting antennas 30 and multiple reception antennas 31.
The transmitting antenna 30 of transmitting terminal is consolidated in different with 31 pairing work of reception antenna of receiving terminal, each pair Antenna Operation
Determine frequency band synchronous transfer many array datas bag signal.
Preferably, the transmitting antenna 30 and reception antenna 31 are made using flexible circuit version, and each pair Antenna Operation is not
Same frequency range, by receiving terminal and the pairing of shaking hands of transmitting terminal multiplexing coding/decoding module, determines frequency range and the matrix number of transmission,
Transmission many array synchronization packet accordingly is respectively used to, different antenna pairs transmits the packet of specific array.Its advantage exists
In, first, array gain is realized using the combination effect of the multipair antenna people having the same aspiration and interest, secondly, if transmitting antenna number is Mt, reception day
Line number is Mr, then be divided into Mt section with different antenna simultaneous transmissions the data of transmission, realize space multiplexing gain
(Spatial Multi-Gain), makes message transmission rate improve Min (Mt, Mr) times.
Embodiment three
The present embodiment provides a kind of many arrays multiplexing and encodes the scheme that wireless ultra-wideband DEU data exchange unit is more highly preferred to, such as
Shown in Fig. 5, with respect to aforesaid embodiment, also include AES encryption module 22 and AES deciphering module 23.
AES encryption process is first carried out in the data input of transmitting terminal, encrypting module 22 is set before convolution module 11, is adopted
Convolution module is input into AES encryption algorithm after being encrypted to data again.In receiving terminal, also wrap after tieing up bit decoder module 21
AES deciphering module 23 is included, will tie up the decoded data of bit carries out AES decryption processing.
Scrambler is usually used to carry out scrambler in traditional MB-OFDM UWB technology, its encryption is very poor, this reality
Applying in example carries out data encryption with aes algorithm, can be prevented effectively from data plain code and be stolen, and improves security.
Example IV
The present embodiment provides a kind of many arrays multiplexing and encodes wireless ultra-wideband DEU data exchange unit, and which includes：
Convolution coding/decoding module, for data being carried out convolution algorithm in transmitting terminal, in receiving terminal using dimension bit arithmetic
Carry out deconvolution process；
Coding/decoding module is punctured, for shortening character length to change through the convolution in transmitting terminal by bit steal
The transfer rate of data after computing, supplies character to recover original data length in receiving terminal with bit insertion；
Staggered coding/decoding module, for the data after puncture being carried out the process that interlocks in transmitting terminal, in transmitting terminal by multiplexing
Decoded data carry out release of an interleave process, to prevent bursty errors；
Multiplexing coding/decoding module, for the data after staggered process being divided into many array datas bag in transmitting terminal, is connecing
Many array datas bag reduction after OFDM demodulation is merged into serial data by receiving end；
Multiple OFDM modulation /demodulation modules, for many array datas bag after the multiplexing is encoded by transmitting terminal respectively according to
Different frequency range transmission is modulated at according to time-frequency interleaved code, in receiving terminal by many array datas bag of baseband signal according to time-frequency interleaved code
It is decoded；
Multiple UWB radio-frequency modules, for the UWB radio frequency processing of data.
Preferably, many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit and also includes multipair transmitting and receive day
Line.Synchronous transfer many array datas bag distinguished by each pair of antenna, and matched by dohandshake action.
Specifically, the multiplexing coding/decoding module includes：The multiplexing decoding of the multiplexing coding module of transmitting terminal and receiving terminal
Module, the multiplexing coding module, for the data after staggered process are divided into many array datas bag, the multiplexing decodes mould
Block, for merging into serial data by many array datas bag reduction after OFDM demodulation.The encoding and decoding of many array datas bag are by connecing
The dohandshake action of receiving end and transmitting terminal is executed, and is together decided on by control flag and is passed after available band limits and band number again
Defeated.
Modulation technique is characterized in that and for baseband signal to change carrier wave property, including Modulation and Amplitude Modulation AM, frequency modulation(PFM) FM and phase
Position modulation PM.It is big that wherein AM and FM designs complicated, power consumption during high-speed transfer.And PM uses PSK, divide according to carrier phase
It is cut into multistage system (M Array), M=2N, M is 1,2,4,8,16 ... the phase places tune that can be changed into higher order by that analogy
System.Embodiments of the invention carry out multiplexing coding with many array phases modulation technique, however it is not limited to any type of phase shift bond number,
Reaching synchronous matching method carries out MB-OFDM UWB transmission, so as to improve transfer rate.
On the premise of frequency range and transmission power is not increased, carry out multiplexing encoding and decoding and M times of transfer rate can be lifted, if
Originally speed is 480Mbps, and as M=4, speed can bring up to 1920Mbps.
Preferably, many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, also includes AES encryption deciphering mould
Block, encrypts and decrypts process for the data respectively to being input into and export.AES chip is adopted in the present embodiment, using patrolling
Property AES encryption deciphering circuit is collected, the speed of service can be lifted.
Accordingly, the present embodiment provides a kind of many arrays multiplexing and encodes wireless ultra-wideband method for interchanging data, it include with
Lower step：
Convolutional encoding：Input data is carried out convolution algorithm；
Puncture coding：Character length is shortened to change the transmission speed of data after the convolution algorithm by bit steal
Rate；
Interleaved code：Data after puncture are carried out staggered process to prevent bursty errors；
Multiplexing is encoded：Data after staggered process are divided into many array datas bag；Specifically, the multiplexing coding bag
Include：Data after staggered process are divided into multi-group data bag and carry out multi-stage data bag after frequency domain synchronization, is produced, by monitoring
Control flag receiving terminal and transmitting terminal determine that available frequency band completes to shake hands.
OFDM is modulated：Many array datas bag after the multiplexing is encoded is modulated at different frequencies according to time-frequency interleaved code respectively
Section transmission；
UWB radio-frequency transmissions：Many array datas bag after OFDM is modulated passes through multiple after carrying out UWB radio frequency processing respectively
Penetrate antenna transmitting；
UWB radio frequency reception：The UWB radiofrequency signal received from reception antenna is migrated to base band.
OFDM demodulation：Many array datas bag of baseband signal is decoded according to time-frequency interleaved code；
Multiplexing is decoded：Serial data is merged in many array datas bag reduction after OFDM demodulation；The multiplexing decoding includes：
The many array datas bag for receiving is carried out frequency domain synchronization decode and merge into serial data, by Monitoring and Controlling flag receiving terminal and
Transmitting terminal determines that available frequency band completes to shake hands.
Release of an interleave is processed：Decoded for multiplexing data are carried out release of an interleave process；
Solution puncture is processed：Data after release of an interleave is processed carry out solving puncture process, supply character with extensive with bit insertion
Restore the data length of coming；
Dimension bit decoding：Data after solution puncture is processed carry out the decoding process of convolution algorithm.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Mode by software plus required general hardware platform is realizing.Based on such understanding, the technical scheme essence of the application
On the part that in other words prior art contributed can be embodied in the form of software product, the computer software product
Can be stored in storage medium, such as ROM/RAM, magnetic disc, CD etc., use so that a computer equipment including some instructions
(can be personal computer, server, or network equipment etc.) executes some of each embodiment of the application or embodiment
Method described in part.
Each embodiment in this specification is all described by the way of going forward one by one, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for system or
For system embodiment, as which is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.System described above and system embodiment are only schematically wherein described conduct
Separating component explanation unit can be or may not be physically separate, as the part that unit shows can be or
Person may not be physical location, you can be located at a place, or can also be distributed on multiple NEs.Can root
Factually border need select some or all of module therein to realize the purpose of this embodiment scheme.Ordinary skill
Personnel are not in the case of creative work is paid, you can to understand and implement.
Specific case used herein is set forth to the principle of the application and embodiment, the saying of above example
Bright it is only intended to help and understands the present processes and its core concept；Simultaneously for one of ordinary skill in the art, foundation
The thought of the application, all will change in specific embodiments and applications.In sum, this specification content is not
It is interpreted as the restriction to the application.
Claims (10)
1. a kind of many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, it is characterised in that include：
Convolution module, for carrying out convolution algorithm by input data；
Piercing module, for shortening character length to change the transmission speed of data after the convolution algorithm by bit steal
Rate；
Deinterleaving block, for carrying out staggered process to prevent bursty errors by the data after puncture；
Multiplexing coding module, for being divided into many array datas bag by the data after staggered process；
Multiple OFDM modulation modules, for many array datas bag after encoding the multiplexing respectively according to the modulation of time-frequency interleaved code
Transmit in different frequency range；
Multiple UWB radio-frequency modules, carry out UWB radio frequency processing for many array datas bag after modulating OFDM.
2. many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit as claimed in claim 1, it is characterised in that described many
Work coding module includes：The many array control units of dynamic, package buffer, frequency domain synchronization encoder；Wherein,
The many array control units of dynamic, for according to control flag the data dynamic cutting after staggered process being multi-group data bag,
The control flag is shaken hands acquisition by multiple flag monitor and dynamic many array control units of receiving terminal；
Package buffer, for depositing the multi-group data bag after dynamic cutting；
Frequency domain synchronization encoder, for the multi-group data bag is carried out frequency domain synchronization process, produces multistage synchronization packets simultaneously
Send to OFDM modulation module.
3. many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit as claimed in claim 1, it is characterised in that described
OFDM modulation module includes：Spatial mapper, deserializer, inversefouriertransform device, digital to analog converter and time-frequency interlock
OFDM modulator；Wherein, each array data bag is jumped to difference according to time-frequency interleaved code by the staggered OFDM modulator of the time-frequency
Band transmissions.
4. many arrays multiplexing as described in claim 1,2 or 3 encodes wireless ultra-wideband DEU data exchange unit, it is characterised in that
Also include：Multiple transmitting antennas, the reception antenna pairing work with receiving terminal, each pair Antenna Operation are same in different fixed frequency bands
Many array datas bag signal after the step transmission UWB radio-frequency module process.
5. many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit as claimed in claim 1, it is characterised in that also wrap
Include：Encrypting module, is input into convolution module again using AES encryption algorithm after being encrypted to data.
6. a kind of many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit, it is characterised in that include：
Multiple UWB radio-frequency modules, for migrating UWB radiofrequency signal to base band；
Multiple OFDM demodulation modules, for many array datas bag of baseband signal is decoded according to time-frequency interleaved code；
Multiplexing decoder module, for merging into serial data by many array datas bag reduction after OFDM demodulation；
De-interlacing module, for carrying out release of an interleave process by decoded for multiplexing data；
Solution piercing module, carries out solving puncture process for the data after processing release of an interleave, supplies character with extensive with bit insertion
Restore the data length of coming；
Dimension bit decoder module, carries out the decoding process of convolution algorithm for the data after processing solution puncture.
7. many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit as claimed in claim 6, it is characterised in that described many
Work decoder module includes：Multiple flag monitor, package merge buffer, frequency domain synchronization decoder；Wherein,
Frequency domain synchronization decoder, for carrying out frequency domain synchronization decoding process by many array datas bag after OFDM demodulation；
Multiple flag monitor, for shaking hands with many array control units of the dynamic of receiving terminal, according to the control flag for monitoring to
The package merges buffer and sends merging control instruction；
Package merges buffer, for being included simultaneously according to many array datas of the merging control instruction.
8. many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit as claimed in claim 6, it is characterised in that described
OFDM demodulation module includes：Inverse Spatial mapper, parallel-to-serial converter, Fourier transformer, analog-digital converter and time-frequency are staggered
Ofdm demodulator；Wherein, many array datas bag is demodulated also by the staggered ofdm demodulator of the time-frequency according to time-frequency interleaved code
Original place is managed.
9. many arrays multiplexing as described in claim 6,7 or 8 encodes wireless ultra-wideband DEU data exchange unit, it is characterised in that
Also include multiple reception antennas, the transmitting antenna pairing work with transmitting terminal, each pair Antenna Operation are same in different fixed frequency bands
Step transmission many array datas bag signal.
10. many arrays multiplexing encodes wireless ultra-wideband DEU data exchange unit as claimed in claim 9, it is characterised in that also wrap
AES deciphering module is included, will tie up the decoded data of bit carries out AES decryption processing.
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