CN105471801B - A kind of 5G mobile communication digital modulation signal occurrence device and its method for generation - Google Patents
A kind of 5G mobile communication digital modulation signal occurrence device and its method for generation Download PDFInfo
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- CN105471801B CN105471801B CN201510888709.4A CN201510888709A CN105471801B CN 105471801 B CN105471801 B CN 105471801B CN 201510888709 A CN201510888709 A CN 201510888709A CN 105471801 B CN105471801 B CN 105471801B
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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
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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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
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
Abstract
The invention discloses a kind of 5G mobile communication digital modulation signal occurrence device and its method for generation.The present invention includes multi-group data bit circulation road, for handling multi-group data bit stream；Combiner unit, for by multiple signals in time history synthesis I/Q signal all the way；IQ modulation unit, for I/Q signal to be modulated to radio frequency；Converter unit generates the 5G signal of various frequencies for frequency conversion；Power control unit, for the watt level according to user demand self-setting output signal；Multi-group data bit flows through combiner unit and converges, and exports after IQ modulation unit, converter unit, the power control unit processing being sequentially communicated.The present invention reduces the complexity that 5G mobile communication digital modulated signal occurs using multichannel baseband signal synthetic technology, and shaping filter is combined to eliminate signal interference problem between multichannel, generate a kind of signal bandwidth is controllable, amplitude-controllable, frequency can unrestricted choice 5G mobile communication digital modulated signal, provide technical support to 5G system research and development.
Description
Technical field
The present invention relates to 5G mobile communication field, especially a kind of 5G mobile communication digital modulation signal occurrence device and its
Method for generation.
Background technique
The mobile communication high speed development in past 30 years experienced from voice service and fall the leap of broadband data service
Formula development, not only profoundly changes people's lives mode, has been also greatly facilitate society and economic rapid development.It is mobile mutual
The two big main drives that networking and Internet of Things develop as future mobile communications, provide wide answer for the 5th third-generation mobile communication
Use prospect.Thousand times of growths of the data traffic that faces the future, the connection of hundred billion equipment and diversified business demand all will be to 5G systems
Design proposes stern challenge.Compared with 4G, 5G will support more diversified scene, incorporate a variety of access modes, and
The technologies such as new type of modulation coding are made full use of, spectrum efficiency is significantly promoted.Novel 5G signal how is generated, 5G system research and development is given
Support is provided, is current urgent problem in the industry.
Currently, 5G technology is always in technical discussion, on 2 11st, 2015, IMT-2020 (5G) propulsion group was held in Beijing
5G concept white paper news conference, introduces 5G demand, technology, frequency spectrum etc. research achievement.Subsequent emphasis enters standard system
Determine the stage.5G mobile communication digital modulated signal method for generation is capable of providing in this stage and device meaning is very big.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention is to provide novel vector in 5G chip/terminal/network equipment research and development
Modulation source reduces the complexity that 5G mobile communication digital modulated signal occurs using multichannel baseband signal synthetic technology, and combines
Shaping filter eliminates signal interference problem between multichannel, generate a kind of signal bandwidth is controllable, amplitude-controllable, frequency can unrestricted choice
5G mobile communication digital modulated signal.
The present invention adopts the following technical scheme that：
A kind of 5G mobile communication digital modulation signal occurrence device, including：Multi-group data bit circulation road is more for handling
Group data bit stream；
Combiner unit, for multiple signals in time history synthesis, to be formed I/Q signal all the way；
IQ modulation unit, for I/Q signal to be modulated to radio frequency；
Converter unit, for the different multiple groups radiofrequency signal frequency conversion of Frequency point to be generated to the 5G signal of various frequencies；
Power control unit, for the watt level according to user demand self-setting output signal；
Multi-group data bit flows through combiner unit and converges, by the IQ modulation unit, converter unit, power control being sequentially communicated
It is exported after cell processing processed.
Preferably, the data bit circulation road includes：The data generating unit being sequentially communicated, for generating Frequency point not
Same data bit stream；
CRC coding unit, which is used to flow data bit, to be divided, and is further added by CRC check mark, the bit after forming CRC coding
Stream；
Channel encoding unit forms channel bit stream for carrying out configuration according to business demand, for high-rate service, adopts
Low rate packet services will be used with polynary low density parity check code, polarization code or Turbo code channel coding method
Polarization code or convolutional code channel coding method；
Digital modulation unit is hinted obliquely at for carrying out QAM, PSK or FSK digital modulation, forms modulated data stream；
Resource hints obliquely at unit, for modulated data stream to be mapped onto frequency domain according to actual needs, forms frequency domain data；
IFFT unit, for frequency domain data to be formed time-domain signal；
Increase CP unit, for reducing the intersymbol interference between subcarrier；
Shaping filter unit, on the one hand for reducing data-signal intersymbol interference itself, on the other hand for preventing
It is interfered with each other when being synthesized with other signals；
Filtering interpolation unit, for adjusting the data length of each road signal.
According to the method for generation of 5G mobile communication digital modulation signal occurrence device, the method for generation includes following step
Suddenly：
Step 1：Multi-group data bit circulation road generates multichannel data bit stream, and data bit is flowed through at data bit circulation road
Reason；
Step 2：Treated that data bit flows through combiner unit merges into I/Q signal all the way for multiple groups；
Step 3：I/Q signal gives IQ modulation unit, and signal is modulated onto radio frequency；
Step 4：I/Q signal needs to generate the 5G signal of various frequencies by converter unit；
Step 5：5G signal passes through power control unit, and the function of output signal is arranged according to user demand for power control unit
Rate size, and export desired signal.
Further, in the step 1 data bit flow through data bit circulation road processing include the following steps：
(1) module generation n circuit-switched data bit stream occurs for data flow, and full 0, complete 1,01 alternating, PN sequence, industry are all supported in every road
Data of being engaged in or user's self-defining data；
(2) data flow generated passes through CRC coding unit, first flows data bit and divides according to regular length, is further added by
CRC check mark, the bit stream after forming CRC coding；
(3) bit formed is streamed to channel encoding unit, and channel coding is configured according to business demand, for high speed
Rate business, using polynary low density parity check code, polarization code or Turbo code channel coding method, for low rate parcel industry
Business, will use polarization code or convolutional code channel coding method；
(4) various channel bit streams are formed after channel encoding unit, channel bit stream is carrying out QAM, PSK or FSK number
Word modulation is hinted obliquely at, and modulated data stream is formed, and data bit width is consistent with the IQ of IQ modulation unit input bit wide；
(5) modulated data stream enters resource and hints obliquely at unit, and modulated data stream is mapped onto frequency domain according to actual needs, is formed
Frequency domain data；
(6) frequency domain data passes through IFFT unit again and forms time-domain signal, and IFFT length hints obliquely at unit depending on forming resource
For the frequency range of formation divided by frequency interval, frequency interval user can self-setting according to demand；
(7) time-domain signal reduces the intersymbol interference between subcarrier by increasing CP unit；
(8) time-domain signal continues through shaping filter unit, on the one hand shaping filter reduces data-signal symbol itself
Between interfere, on the other hand prevent from interfering with each other when synthesizing with other signals；
(9) equal by the data length of the road filtering interpolation unit Hou Ge signal.
The advantageous effects for using technical solution as above to obtain for：
The present invention can produce the customized changeable 5G mobile communication digital modulated signal of user, can extensively send out applied to 5G
In Mobile Communication Chip/terminal/base station equipment receiving channel research and development test, it can also be used to 5G Mobile Communication Chip/terminal/base
It is 5G Mobile Communication Chip/each rank of terminal/base station equipment in the reception test of station equipment and equipment transmitting signal fusing test
The signal of communication of the offer Different Modulations of section, in 5G Mobile Communication Chip/terminal/base station equipment each stage research and development
Middle lookup and problem analysis etc. suffer from very important effect.Can operate with communication equipment, chip, terminal etc. research and development,
Production and the occasions such as maintenance, digital modulation signals certification, the design of communication device and the test of certification authority.
Detailed description of the invention
Fig. 1 is the systematic schematic diagram of 5G mobile communication digital modulation signal occurrence device.
Fig. 2 is the impulse response figure of forming filter of the invention.
Fig. 3 is the amplitude-frequency response figure of forming filter of the invention.
Fig. 4 is the spectrogram that the present invention generates 5G modulated signal.
Specific embodiment
It is described further in conjunction with 1 to 4 pair of a specific embodiment of the invention of attached drawing:
The present invention relates to 5G mobile communication digital modulated signals, and test device occurs, and grinds for 5G chip/terminal/network equipment
Novel Vector Modulation source is provided in hair, 5G mobile communication digital modulated signal is reduced using multichannel baseband signal synthetic technology and occurs
Complexity, and shaping filter is combined to eliminate signal interference problem between multichannel, generate a kind of signal bandwidth is controllable, amplitude can
Control, frequency can unrestricted choice 5G mobile communication digital modulated signal, relate in particular to a kind of synthesis of multichannel baseband signal and
Shaping filter United Technologies realize a kind of 5G mobile communication digital modulated signal method for generation and device.
5G mobile communication digital modulation signal occurrence device, including multi-group data bit circulation road, for handling multi-group data
Bit stream；Combiner unit, for multiple signals in time history synthesis, to be formed I/Q signal all the way；IQ modulation unit, for believing IQ
Number it is modulated to radio frequency；Converter unit, for the different multiple groups radiofrequency signal frequency conversion of Frequency point to be generated to the 5G signal of various frequencies；
Power control unit, for the watt level according to user demand self-setting output signal；It is single that multi-group data bit flows through combining
Member is converged, and exports after IQ modulation unit, converter unit, the power control unit processing being sequentially communicated.
Data bit circulation road includes the data generating unit being sequentially communicated, for generating the different data bit of Frequency point
Stream；CRC coding unit, which is used to flow data bit, to be divided, and CRC check mark is further added by, the bit stream after forming CRC coding；Channel
Coding unit forms channel bit stream for carrying out configuration according to business demand, for high-rate service, using polynary low-density
Parity check code, polarization code or Turbo code channel coding method will use polarization code or convolution for low rate packet services
Code channel coding method；Digital modulation unit is hinted obliquely at for carrying out QAM, PSK or FSK digital modulation, forms modulated data stream；
Resource hints obliquely at unit, for modulated data stream to be mapped onto frequency domain according to actual needs, forms frequency domain data；IFFT unit is used
In frequency domain data is formed time-domain signal；Increase CP unit, for reducing the intersymbol interference between subcarrier；Shaping filter list
Member, on the one hand for reducing data-signal intersymbol interference itself, on the other hand for preventing from synthesizing phase with other signals
Mutually interference；Filtering interpolation unit, for adjusting the data length of each road signal.
5G mobile communication digital modulation signal occurrence device data producing method and former mobile data mode are
Difference, former mobile communication only generates one group of data bit stream, but we will generate n according to user demand in 5G mobile communication
Group data bit stream (n is greater than 1).The data flow of generation is encoded by CRC, first divides data flow, is further added by CRC check mark,
Bit stream after forming CRC coding；The bit of formation is streamed to channel encoding unit, and channel coding is matched according to business demand
It sets, forms various channel bit streams after channel encoding unit.
According to the method for generation of above-mentioned 5G mobile communication digital modulation signal occurrence device, the method for generation includes as follows
Step：
Step 1：Multi-group data bit circulation road generates multichannel data bit stream, and data bit is flowed through at data bit circulation road
Reason；
Step 2：Treated that data bit flows through combiner unit merges into I/Q signal all the way for multiple groups；
Step 3：I/Q signal gives IQ modulation unit, and signal is modulated onto radio frequency；
Step 4：I/Q signal needs to generate the 5G signal of various frequencies by converter unit；
Step 5：5G signal passes through power control unit, and the function of output signal is arranged according to user demand for power control unit
Rate size, and export desired signal.
Further, in the step 1 data bit flow through data bit circulation road processing include the following steps：
(1) module generation n circuit-switched data bit stream occurs for data flow, and full 0, complete 1,01 alternating, PN sequence, industry are all supported in every road
Data of being engaged in or user's self-defining data；
(2) data flow generated passes through CRC coding unit, first flows data bit and divides according to regular length, is further added by
CRC check mark, the bit stream after forming CRC coding；
(3) bit formed is streamed to channel encoding unit, and channel coding is configured according to business demand, for high speed
Rate business, using polynary low density parity check code, polarization code or Turbo code channel coding method, for low rate parcel industry
Business, will use polarization code or convolutional code channel coding method；
(4) various channel bit streams are formed after channel encoding unit, channel bit stream is carrying out QAM (quadrature amplitude tune
System), (frequency shift (FS) modulation, utilizes base band by PSK (phase-shift keying (PSK) transmits digital information using the frequency variation of carrier wave) or FSK
The discrete characteristics taking value of digital signal goes keyed carrier frequency to transmit a kind of digital modulation technique of information) digital modulation hints obliquely at,
Modulated data stream is formed, data bit width is consistent with the IQ of IQ modulation unit input bit wide, general to use 16；
(5) modulated data stream enters resource and hints obliquely at unit, and modulated data stream is mapped onto frequency domain according to actual needs, is formed
Frequency domain data；
(6) frequency domain data passes through IFFT unit again and forms time-domain signal, and IFFT length hints obliquely at unit depending on forming resource
For the frequency range of formation divided by frequency interval, frequency interval user can self-setting according to demand；
(7) time-domain signal reduces the intersymbol interference between subcarrier by increasing CP unit；
(8) time-domain signal continues through shaping filter unit, on the one hand shaping filter reduces data-signal symbol itself
Between interfere, on the other hand prevent from interfering with each other when synthesizing with other signals；
(9) equal by the data length of the road filtering interpolation unit Hou Ge signal.
Fig. 2-3 is that the waveform obtained using 5G mobile communication digital modulation signal occurrence device and its method for generation is illustrated
Figure.
Fig. 2 is the impulse response figure of forming filter, and forming filter is used to prevent intersymbol interference in the communications, still
Main purpose is to prevent multiple waveforms from interfering between each other in this patent.Impulse response is caused under unit impulse excitation
Zero state response.
Fig. 3 is the amplitude-frequency response figure of forming filter, amplitude-frequency response refer to signal by output signal after system with
The amplitude ratio of signal, amplitude-frequency response figure refer to the curve that the amplitude ratio of a variety of unlike signals is drawn in, this figure master when it is inputted
Show requirement of this patent to the amplitude-frequency response of forming filter, 5G signal can filter out signal frequency side band by the filter and do
It disturbs, so that the sub-carrier signal is smaller to the interference of other sub-carrier signals.
Fig. 4 is the spectrogram that the present invention generates 5G modulated signal, and spectrogram refers to the power and frequency in 5G modulated signal
Relational graph, this figure main presentation 5G signal by filtering after each subcarriers signal frequency and power distribution situation.
The present invention is to provide novel Vector Modulation source in 5G chip/terminal/network equipment research and development, utilizes multichannel baseband signal
Synthetic technology reduces the complexity that 5G mobile communication digital modulated signal occurs, and shaping filter is combined to eliminate signal between multichannel
Interference problem, generate a kind of signal bandwidth is controllable, amplitude-controllable, frequency can unrestricted choice 5G mobile communication digital modulation letter
Number, technical support is provided to 5G system research and development.
Certainly, described above is only that presently preferred embodiments of the present invention is answered the present invention is not limited to enumerate above-described embodiment
When explanation, anyone skilled in the art is all equivalent substitutes for being made, bright under the guidance of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (2)
1. a kind of 5G mobile communication digital modulation signal occurrence device, which is characterized in that including multi-group data bit circulation road, use
In processing multi-group data bit stream；
Combiner unit, for multiple signals in time history synthesis, to be formed I/Q signal all the way；
IQ modulation unit, for I/Q signal to be modulated to radio frequency；
Converter unit, for the different multiple groups radiofrequency signal frequency conversion of Frequency point to be generated to the 5G signal of various frequencies；
Power control unit, for the watt level according to user demand self-setting output signal；
Multi-group data bit flows through combiner unit and converges, by the IQ modulation unit, converter unit, power control list being sequentially communicated
It is exported after member processing；
The data bit circulation road includes the data generating unit being sequentially communicated, for generating the different data bit of Frequency point
Stream；
CRC coding unit, which is used to flow data bit, to be divided, and CRC check mark is further added by, the bit stream after forming CRC coding；
Channel encoding unit forms channel bit stream for carrying out configuration according to business demand, for high-rate service, using more
First low density parity check code, polarization code or Turbo code channel coding method will be using polarization for low rate packet services
Code or convolutional code channel coding method；
Digital modulation unit is hinted obliquely at for carrying out QAM, PSK or FSK digital modulation, forms modulated data stream；
Resource hints obliquely at unit, for modulated data stream to be mapped onto frequency domain according to actual needs, forms frequency domain data；
IFFT unit, for frequency domain data to be formed time-domain signal；
Increase CP unit, for reducing the intersymbol interference between subcarrier；
Shaping filter unit, on the one hand for reducing data-signal intersymbol interference itself, on the other hand for prevent and its
It is interfered with each other when his signal synthesis；
Filtering interpolation unit, for adjusting the data length of each road signal.
2. a kind of method for generation of 5G mobile communication digital modulation signal occurrence device according to claim 1, feature
It is, the method for generation includes the following steps：
Step 1：Multi-group data bit circulation road generates multichannel data bit stream, and data bit flows through the processing of data bit circulation road；
Step 2：Treated that data bit flows through combiner unit merges into I/Q signal all the way for multiple groups；
Step 3：I/Q signal gives IQ modulation unit, and signal is modulated onto radio frequency；
Step 4：I/Q signal needs to generate the 5G signal of various frequencies by converter unit；
Step 5：5G signal passes through power control unit, and power control unit is big according to the power that output signal is arranged in user demand
It is small, and export desired signal；
Data bit flows through the processing of data bit circulation road and includes the following steps in the step 1：
(1) module generation n circuit-switched data bit stream occurs for data flow, and full 0, complete 1,01 alternating, PN sequence, business number are all supported in every road
According to or user's self-defining data；
(2) data flow generated passes through CRC coding unit, first flows data bit and divides according to regular length, is further added by the school CRC
Standard inspection is known, the bit stream after forming CRC coding；
(3) bit formed is streamed to channel encoding unit, and channel coding is configured according to business demand, for high-speed industry
Business, will for low rate packet services using polynary low density parity check code, polarization code or Turbo code channel coding method
Using polarization code or convolutional code channel coding method；
(4) various channel bit streams are formed after channel encoding unit, channel bit stream is carrying out QAM, PSK or FSK number tune
System is hinted obliquely at, and modulated data stream is formed, and data bit width is consistent with the IQ of IQ modulation unit input bit wide；
(5) modulated data stream enters resource and hints obliquely at unit, and modulated data stream is mapped onto frequency domain according to actual needs, forms frequency domain
Data；
(6) frequency domain data passes through IFFT unit again and forms time-domain signal, and IFFT length depends on forming resource and hinting obliquely at unit being formed
Frequency range divided by frequency interval, frequency interval user can self-setting according to demand；
(7) time-domain signal reduces the intersymbol interference between subcarrier by increasing CP unit；
(8) time-domain signal continues through shaping filter unit, and on the one hand shaping filter reduces data-signal intersymbol itself dry
It disturbs, on the other hand prevents from interfering with each other when synthesizing with other signals；
(9) equal by the data length of the road filtering interpolation unit Hou Ge signal.
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| WO2019095270A1 (en) * | 2017-11-17 | 2019-05-23 | Qualcomm Incorporated | Uplink control information segmentation for polar codes |
| CN109302191A (en) * | 2017-12-12 | 2019-02-01 | 上海创远仪器技术股份有限公司 | A kind of multiport 5G communication signal emitting platform and method |
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| CN102196111A (en) * | 2011-04-14 | 2011-09-21 | 西安烽火电子科技有限责任公司 | Short-wave two-path modulator-demodulator |
| CN104010233A (en) * | 2014-05-15 | 2014-08-27 | 北京大学 | Polarization multiplexing coherent detection passive optical network based on ROSA |
| CN104135294A (en) * | 2014-08-13 | 2014-11-05 | 中国科学院上海微系统与信息技术研究所 | E-waveband wireless transmission signal generating equipment |
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| KR102200811B1 (en) * | 2014-05-09 | 2021-01-11 | 삼성전자 주식회사 | Apparatus and method for demodulating of hybrid modulation symbol in a wireless communication system using hybrid modulation scheme |
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| CN102196111A (en) * | 2011-04-14 | 2011-09-21 | 西安烽火电子科技有限责任公司 | Short-wave two-path modulator-demodulator |
| CN104010233A (en) * | 2014-05-15 | 2014-08-27 | 北京大学 | Polarization multiplexing coherent detection passive optical network based on ROSA |
| CN104135294A (en) * | 2014-08-13 | 2014-11-05 | 中国科学院上海微系统与信息技术研究所 | E-waveband wireless transmission signal generating equipment |
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Effective date of registration: 20220614 Address after: 266555 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: CLP kesiyi Technology Co.,Ltd. Address before: 233010 No. 726 Huaguang Avenue, Bengbu City, Anhui Province Patentee before: THE 41ST INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group Corp. |