CN106533544B - A 5G communication high-speed transmission device and method based on local oscillator module - Google Patents
A 5G communication high-speed transmission device and method based on local oscillator module Download PDFInfo
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- CN106533544B CN106533544B CN201611161821.9A CN201611161821A CN106533544B CN 106533544 B CN106533544 B CN 106533544B CN 201611161821 A CN201611161821 A CN 201611161821A CN 106533544 B CN106533544 B CN 106533544B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
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Abstract
The invention discloses a kind of, and the 5G based on local oscillator module communicates high rate data transmission device and method, it includes on-site programmable gate array FPGA that 5G, which communicates high rate data transmission device, respectively local oscillator module, SFP optic module, ADC module, DAC module and the DDR memory of on-site programmable gate array FPGA connection.The present invention is based on Software Radio Theory, Digital Signal Processing and embedded development technologies, in conjunction with high performance local oscillator group design, maximum transmission rate up to the real-time optical fiber high speed data transfer processing technique of 10.52Gb/s, using high-performance FPGA+ high-bit width, ADC the and DAC hardware structure of high sampling rate, high speed signal Real-time demodulation, high-throughput concurrent testing are solved, realizes transmitting, reception, transmission, detection, modulation, demodulation, coding, decoding, analysis, test etc. to 5G communication two-forty signal.
Description
Technical field
The present invention relates to network mobile communications field, specifically a kind of 5G communication high rate data transmission dress based on local oscillator module
It sets and method.
Background technique
5G network is as next generation mobile communication network, and the transmission speed than existing 4G network is hundreds times fast, peak transmission
Rate reaches 10Gbit/s, and 5G network just develops towards network multi-element, broadband, synthesization, intelligentized direction.
China has set up IMT-2020 (5G) propulsion group in 2 months 2013 tissues, the overall vision of the following 5G network and
Performance requirement is reached common understanding substantially, mainly include higher data traffic connected with user experience rate, magnanimity terminal with
And more low time delay etc..
Summary of the invention
The 5G communication high rate data transmission device that the technical problem to be solved in the present invention is to provide a kind of based on local oscillator module and
Method communicates high speed data transfer, the main ADC and DAC for using high-performance FPGA, high-bit width, high sampling rate for realizing 5G
It realizes, provides test well, verifying etc. for 5G communication test technology.
The technical solution of the present invention is as follows:
A kind of 5G communication high rate data transmission device based on local oscillator module, includes on-site programmable gate array FPGA, point
Local oscillator module, SFP optic module, ADC module, DAC module and the DDR memory of other on-site programmable gate array FPGA connection；
The local oscillator module includes the first local oscillator unit, the second local oscillator unit, voltage controlled oscillator, and is sequentially connected with
Intermediate-frequency filter and AGC module in the second local oscillator unit rear end；The first local oscillator unit includes sequentially connected
One preamplifier, the first PD phase discriminator, first integrator unit, first filter, the first post amplifier and the first output
Unit and fractional frequency division module and control module；The input terminal of the fractional frequency division module and the output of first filter
End connection, the output end of fractional frequency division module are connect with the input terminal of the first PD phase discriminator, control module and fractional frequency division module
Connection, and control module includes frequency sweep control module, synchronization control module and fractional frequency division control module；Described second
Vibration unit include sequentially connected second preamplifier, the 2nd PD phase discriminator, second integral device unit, second filter,
Second post amplifier and the second output unit, and fixed frequency division module；The input terminal of the fixation frequency division module and
The output end of two filters connects, and the output end of fixed frequency division module is connect with the input terminal of the 2nd PD phase discriminator；Described
One preamplifier, the second preamplifier input terminal connect with the output end of voltage controlled oscillator；The AGC module
Output end and the input terminal of ADC module connect.
The local oscillator module further includes having the sequentially connected attenuator of multichannel, prefilter, radio frequency amplifier, first
Multiplier, the first postfilter, the second multiplier and the second postfilter, the intermediate-frequency filter and AGC module are
Multiple groups, the ADC module are multiple；Second postfilter is connected with corresponding intermediate-frequency filter, the AGC
The output end of module is connected with the input terminal of corresponding ADC module；The input terminal of first multiplier of multichannel is with first
First output unit of local oscillator unit connects, the input terminal of second multiplier of multichannel with the second local oscillator unit second
Output unit connection.
The intermediate-freuqncy signal of the second output unit output is 4-8GHz, generates fifth harmonic 20-40GHz by frequency multiplier
Frequency.
Every group of local oscillator module includes there are two the first local oscillator unit, and the first output unit of the first local oscillator unit is
The output of six tunnels, the second output unit of the second local oscillator unit are the output of 12 tunnels.
The sampling resolution of the ADC module is 12, and single sampling reaches 3.6Gsps；The sampling resolution of the DAC module
It is 14, single sampling can 2.7Gsps.
The local oscillator module further includes having the sequentially connected attenuator in four tunnels, prefilter, radio frequency amplifier, first
Multiplier, the first postfilter, the second multiplier and the second postfilter, the intermediate-frequency filter and AGC module four
Group, the ADC module are four.
A kind of 5G communication high rate data transmission method based on local oscillator module, has specifically included following steps:
(1), 5G analog communication signal sequentially enters the first local oscillator that a 5G communicates high rate data transmission device by RF channel
After unit, the second local oscillator unit, intermediate-frequency filter, AGC module and ADC module, becomes digital signal and enter field programmable gate
Array FPGA carries out signal processing；
(2), treated signal is converted into 5G analog communication signal through DAC module, and 5G analog communication signal passes through optical fiber
It is transferred to the SFP optic module of another 5G communication high rate data transmission device, 5G analog communication signal is passed to by SFP optic module
FPGA is handled, and CPRI protocol processes are carried out inside FPGA, and then by treated, data are passed in DDR memory, and DDR is deposited
Reservoir caches data, finally enters ADC module and carries out analog-to-digital conversion process.
5G analog communication signal sequentially enters a 5G by RF channel and communicates high rate data transmission device in the step (1)
Attenuator, prefilter, the signal after radio frequency amplifier with the output of the first local oscillator unit enter at the first multiplier
Reason, then treated, and signal enters the first postfilter, then enters the second multiplication with the signal of the second local oscillator unit output
Device is handled, and treated, and signal is filtered to form intermediate-freuqncy signal through the second postfilter again, most afterwards through intermediate frequency
After filter, AGC module and ADC module, becomes digital signal and enter on-site programmable gate array FPGA progress signal processing.
It further include high speed transmission of signals, high speed signal control, system information interaction inside FPGA in the step (2)
Treatment process.
Advantages of the present invention:
First local oscillator unit of the invention uses monocycle phase-locking type fractional frequency division frequency synthesis technique, makes the locking of loop
Time greatly improves than past multiring structure, and realizes fractional frequency division frequency synthesis technique using the FPGA of low-power consumption；This
The purity of frequency spectrum of invention realizes that frequency response increases by exporting in local oscillator by the noise reduction techniques of combined filter and loop
Pre- fixed ampllitude is added to realize；Pressuring controlling oscillator frequency range of the invention be 2636MHz~3636MHz, reference frequency 10MHz, this
The design of kind high reference frequency is conducive to inhibit noise in the case where increasing loop bandwidth, to further increase frequency conversion
Time accelerates the scanning speed of point-by-point locking phase；The present invention carries out the to meet requirement of the multi-channel RF radio frequency frequency conversion to local oscillator
The more local oscillator networking designs of one local oscillator, and carry out multi output design；Second local oscillator is carried out using point frequency high performance local oscillator design
Multiport output processing；
The present invention is based on Software Radio Theory, Digital Signal Processing and embedded development technologies, in conjunction with high-performance
Local oscillator group design, maximum transmission rate up to the real-time optical fiber high speed data transfer processing technique of 10.52Gb/s, using high-performance
ADC the and DAC hardware structure of FPGA+ high-bit width, high sampling rate solves high speed signal Real-time demodulation, high-throughput concurrent testing,
Realize transmitting, reception, transmission, detection, modulation, demodulation, coding, decoding, analysis, the test etc. to 5G communication two-forty signal.
Detailed description of the invention
Fig. 1 is that the present invention is based on the functional block diagrams of the 5G of local oscillator module communication high rate data transmission device.
Fig. 2 is the structural schematic diagram of local oscillator module of the present invention.
Fig. 3 is the structural schematic diagram of the first local oscillator unit and the second local oscillator unit of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
See Fig. 1, a kind of 5G communication high rate data transmission device based on local oscillator module, includes field programmable gate array
FPGA 1, the local oscillator module 2 of the difference connection of on-site programmable gate array FPGA 1, SFP optic module 3, ADC module 4, DAC mould
Block 5 and DDR memory 6；
See Fig. 2 and Fig. 3, local oscillator module 2 includes that the sequentially connected attenuator 21 in four tunnels, prefilter 22, radio frequency are put
Big device 23, the first multiplier 24, the first postfilter 25, the second multiplier 26 and the second postfilter 27, two first
Local oscillator unit 28, the second local oscillator unit 29, voltage controlled oscillator 210 and four groups of intermediate-frequency filters 211 and AGC module 212；The
One local oscillator unit 28 includes sequentially connected first preamplifier 281, the first PD phase discriminator 282, first integrator unit
283, first filter 284, the first post amplifier 285 and the first output unit 286 and fractional frequency division module 287 and control
Molding block 288；The input terminal of fractional frequency division module 287 is connect with the output end of first filter 284, fractional frequency division module 287
Output end connect with the input terminal of the first PD phase discriminator 282, control module 288 is connect with fractional frequency division module 287, and control
Module 288 includes frequency sweep control module, synchronization control module and fractional frequency division control module；Second local oscillator unit 29 includes
Sequentially connected second preamplifier 291, the 2nd PD phase discriminator 292, second integral device unit 293, second filter 294,
Second post amplifier 295 and the second output unit 296, and fixed frequency division module 297；The input of fixed frequency division module 297
End is connect with the output end of second filter 294, the input of the output end and the 2nd PD phase discriminator 292 of fixed frequency division module 297
End connection；First preamplifier 281, the second preamplifier 291 input terminal with the output end of voltage controlled oscillator 210 connect
It connects；Second postfilter 27 is connected with corresponding intermediate-frequency filter 211, and the input terminal of four the first multipliers of tunnel 24 is with first
First output unit 286 of local oscillator unit connects, the input terminal of four the second multipliers of tunnel 26 with the second local oscillator unit second
Output unit 296 connects；There are four ADC module 4 includes, the output end of each AGC module 212 is defeated with corresponding ADC module 4
Enter end connection；The intermediate-freuqncy signal of second local oscillator unit, 29 second output unit 296 output is 4-8GHz, is produced by frequency multiplier 298
The frequency of raw fifth harmonic 20-40GHz, subsequently into the input terminal of the second multiplier 26.
Wherein, the sampling resolution of ADC module 4 is 12, and single sampling reaches 3.6Gsps；The sampling resolution of DAC module 5 is 14
Position, single sampling can 2.7Gsps；First output unit 286 of the first local oscillator unit is that six tunnels export, the second of the second local oscillator unit
Output unit 296 is the output of 12 tunnels.
A kind of 5G communication high rate data transmission method based on local oscillator module, has specifically included following steps:
(1), 5G analog communication signal by RF channel sequentially enter a 5G communicate high rate data transmission device attenuator 21,
Signal after prefilter 22, radio frequency amplifier 23 with the output of the first local oscillator unit 28 enters at the first multiplier 24
Reason, then treated, and signal enters the first postfilter 25, then enters second with the signal of the second local oscillator unit 29 output
Multiplier 26 is handled, and treated, and signal is filtered to form intermediate-freuqncy signal through the second postfilter 27 again, most
After intermediate-frequency filter 211, AGC module 212 and ADC module 4, becomes digital signal and enter field programmable gate array
FPGA1 carries out signal processing；
(2), treated signal is converted into 5G analog communication signal through DAC module 5, and 5G analog communication signal passes through optical fiber
It is transferred to the SFP optic module 3 of another 5G communication high rate data transmission device, 5G analog communication signal is passed to by SFP optic module 3
FPGA 1 is handled, and high speed transmission of signals, high speed signal control, CPRI protocol processes, system information are carried out inside FPGA 1
Iterative process, then by treated, data are passed in DDR memory 6, and DDR memory 6 caches data, finally
Analog-to-digital conversion process is carried out into ADC module 4.
Step (1) carries out local oscillation signal processing, optical fiber of the step (2) to 5G analog communication signal to 5G analog communication signal
Transmission carries out test and verification.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
- It include on-site programmable gate array FPGA 1. a kind of 5G based on local oscillator module communicates high rate data transmission device, respectively Local oscillator module, SFP optic module, ADC module, DAC module and the DDR memory being connect with on-site programmable gate array FPGA；The local oscillator module includes the first local oscillator unit, the second local oscillator unit, voltage controlled oscillator, and is sequentially connected in The intermediate-frequency filter and AGC module of two local oscillator unit rear ends；The first local oscillator unit includes before sequentially connected first Amplifier, the first PD phase discriminator, first integrator unit, first filter, the first post amplifier and the first output unit are set, And fractional frequency division module and control module；The input terminal of the fractional frequency division module and the output end of first filter connect It connecing, the output end of fractional frequency division module is connect with the input terminal of the first PD phase discriminator, and control module is connect with fractional frequency division module, And control module includes frequency sweep control module, synchronization control module and fractional frequency division control module；The second local oscillator list Member includes sequentially connected second preamplifier, the 2nd PD phase discriminator, second integral device unit, second filter, second Post amplifier and the second output unit, and fixed frequency division module；The input terminal of the fixation frequency division module and the second filter The output end of wave device connects, and the output end of fixed frequency division module is connect with the input terminal of the 2nd PD phase discriminator；Before described first Set amplifier, the input terminal of the second preamplifier is connect with the output end of voltage controlled oscillator；The output of the AGC module End is connect with the input terminal of ADC module；It is characterized by: the local oscillator module further includes having the sequentially connected attenuator of multichannel, prefilter, radio frequency amplification Device, the first multiplier, the first postfilter, the second multiplier and the second postfilter, the intermediate-frequency filter and AGC Module is multiple groups, and the ADC module is multiple；Second postfilter is connected with corresponding intermediate-frequency filter, institute The output end for the AGC module stated is connected with the input terminal of corresponding ADC module；The input terminal of first multiplier of multichannel is equal Connect with the first output unit of the first local oscillator unit, the input terminal of second multiplier of multichannel with the second local oscillator unit The second output unit connection.
- 2. a kind of 5G based on local oscillator module according to claim 1 communicates high rate data transmission device, it is characterised in that: institute The local oscillator module stated further includes having the sequentially connected attenuator in four tunnels, prefilter, radio frequency amplifier, the first multiplier, One postfilter, the second multiplier and the second postfilter, the intermediate-frequency filter and AGC module are four groups, described ADC module be four.
- 3. a kind of transmission method of 5G communication high rate data transmission device based on local oscillator module according to claim 1, It is characterized in that: having specifically included following steps:(1), 5G analog communication signal by RF channel sequentially enter a 5G communicate high rate data transmission device the first local oscillator unit, After second local oscillator unit, intermediate-frequency filter, AGC module and ADC module, becomes digital signal and enter field programmable gate array FPGA carries out signal processing；(2), treated signal is converted into 5G analog communication signal through DAC module, and 5G analog communication signal, which passes through optical fiber, to be transmitted To another 5G communication high rate data transmission device SFP optic module, SFP optic module by 5G analog communication signal be passed to FPGA into Row processing, the inside FPGA carry out CPRI protocol processes, and then by treated, data are passed in DDR memory, DDR memory pair Data are cached, and are finally entered ADC module and are carried out analog-to-digital conversion process.
- 4. a kind of transmission method of 5G communication high rate data transmission device based on local oscillator module according to claim 3, Be characterized in that: 5G analog communication signal sequentially enters a 5G by RF channel and communicates high rate data transmission dress in the step (1) Enter the progress of the first multiplier with the signal of the first local oscillator unit output after the attenuator set, prefilter, radio frequency amplifier Processing, then treated, and signal enters the first postfilter, then multiplies with the signal of the second local oscillator unit output into second Musical instruments used in a Buddhist or Taoist mass is handled, and treated, and signal is filtered to form intermediate-freuqncy signal through the second postfilter again, is most passed through afterwards After frequency filter, AGC module and ADC module, becomes digital signal and enter on-site programmable gate array FPGA progress signal processing.
- 5. a kind of transmission method of 5G communication high rate data transmission device based on local oscillator module according to claim 3, It is characterized in that: further including high speed transmission of signals, high speed signal control, system information friendship inside the FPGA in the step (2) Mutual treatment process.
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