CN106533544A - 5G communication high-speed transmission device and method based on local oscillator module - Google Patents
5G communication high-speed transmission device and method based on local oscillator module Download PDFInfo
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- CN106533544A CN106533544A CN201611161821.9A CN201611161821A CN106533544A CN 106533544 A CN106533544 A CN 106533544A CN 201611161821 A CN201611161821 A CN 201611161821A CN 106533544 A CN106533544 A CN 106533544A
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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 present invention discloses a 5G communication high-speed transmission device and method based on a local oscillator module. The 5G communication high-speed transmission device comprises a field-programmable gate array (FPGA), and a local oscillator module, an SFP fiber module, an ADC module, a DAC module and a DDR storage which are connected with the field-programmable gate array (FPGA). Based on the software radio theory, the digital signal processing technology and the embedded development technology, through combination of the high-performance local oscillator group design and the real-time optical fiber high-speed data transmission processing technology with the highest transmission speed of 10.52Gb/s and through adoption of the high-performance FPGA+ADC and DAC hardware configuration with high-bit width and high-sampling rate, the high-speed signal real-time demodulation and the high-throughput parallel test are solved, and the emission, the receiving, the transmission, the detection, the modulation, the demodulation, the encoding, the decoding, the analysis and the test of the 5G communication high-speed signals are realized.
Description
Technical field
The present invention relates to network mobile communications field, specifically a kind of 5G communication high rate data transmission dresses based on local oscillator module
Put and method.
Background technology
5G networks as next generation mobile communication network, than the fast hundreds times of the transmission speed of existing 4G networks, peak transmission
Speed reaches 10Gbit/s, and 5G networks just develop 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 following 5G networks and
Performance requirement is reached common understanding substantially, mainly include higher data traffic and Consumer's Experience speed, the connection of magnanimity terminal with
And more low time delay etc..
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of 5G communication high rate data transmission devices based on local oscillator module and
Method, for realizing 5G communication high speed data transfers, mainly adopts high-performance FPGA, high-bit width, the ADC of high sampling rate and DAC
To realize, test well, checking etc. are provided for 5G communication test technologies.
The technical scheme is that：
A kind of 5G communication high rate data transmission devices based on local oscillator module, include on-site programmable gate array FPGA, point
Local oscillator module, SFP optic modules, ADC, DAC module and DDR memory that other on-site programmable gate array FPGA connects；
Described local oscillator module includes the first local oscillator unit, the second local oscillator unit, voltage controlled oscillator, and is sequentially connected with
In the intermediate-frequency filter and AGC modules of the second local oscillator unit rear end；The first described local oscillator unit includes for being sequentially connected
One preamplifier, PD phase discriminators, first integrator unit, the first wave filter, the first post amplifier and the first output
Unit, and fractional frequency division module and control module；The output of the input and the first wave filter of described fractional frequency division module
End connection, the outfan of fractional frequency division module is connected with the input of PD phase discriminators, 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
The unit that shakes include be sequentially connected the second preamplifier, the 2nd PD phase discriminators, second integral device unit, the second wave filter,
Second post amplifier and the second output unit, and fixed frequency division module；The input of described fixed frequency division module and
The outfan connection of two wave filter, the outfan of fixed frequency division module are connected with the input of the 2nd PD phase discriminators；Described
One preamplifier, the input of the second preamplifier are connected with the outfan of voltage controlled oscillator；Described AGC modules
Outfan is connected with the input of ADC.
Described local oscillator module also include the attenuator that multichannel is sequentially connected, prefilter, radio frequency amplifier, first
Multiplier, the first postfilter, the second multiplier and the second postfilter, described intermediate-frequency filter and AGC modules are
Multigroup, described ADC is multiple；The second described postfilter is connected with corresponding intermediate-frequency filter, described AGC
The outfan of module is connected with the input of corresponding ADC；The input of described the first multiplier of multichannel is with first
The first output unit connection of local oscillator unit, the input of described the second multiplier of multichannel with the second local oscillator unit second
Output unit connects.
The intermediate-freuqncy signal of described the second output unit output is 4-8GHz, produces fifth harmonic 20-40GHz by doubler
Frequency.
Every group of described local oscillator module includes two the first local oscillator units, and the first output unit of the first local oscillator unit is
Six tunnels export, and the second output unit of the second local oscillator unit is exported for 12 tunnels.
The sampling resolution of described ADC is 12, and single sampling reaches 3.6Gsps；The sampling resolution of described DAC module
For 14, single sampling can 2.7Gsps.
Described local oscillator module also include the attenuator that four tunnels are sequentially connected, prefilter, radio frequency amplifier, first
Multiplier, the first postfilter, the second multiplier and the second postfilter, described intermediate-frequency filter and AGC modules four
Group, described ADC are four.
A kind of 5G communication high rate data transmission methods based on local oscillator module, have specifically included following steps：
(1), 5G analog communication signals sequentially enter the first local oscillator of 5G communication high rate data transmission devices by RF passages
After unit, the second local oscillator unit, intermediate-frequency filter, AGC modules and ADC, become digital signal and enter field programmable gate
Array FPGA carries out signal processing；
(2) the signal Jing DAC modules after, processing are converted into 5G analog communication signals, and 5G analog communication signals pass through optical fiber
The SFP optic modules of another 5G communications high rate data transmission device are transferred to, SFP optic modules will be 5G analog communication signals incoming
FPGA process, carries out CPRI protocol processes inside FPGA, then by the incoming DDR memory of data after process, DDR is deposited
Reservoir is cached to data, and finally entering ADC carries out analog-to-digital conversion process.
In described step (1), 5G analog communication signals sequentially enter 5G communication high rate data transmission devices by RF passages
Attenuator, prefilter, after radio frequency amplifier with the signal of the first local oscillator unit output at the first multiplier
Reason, the signal after then processing enter the first postfilter, then enter the second multiplication with the signal of the second local oscillator unit output
Device is processed, the signal after process again the second postfilters of Jing be filtered process formed intermediate-freuqncy signal, most after Jing intermediate frequencies
After wave filter, AGC modules and ADC, becoming digital signal carries out signal processing into on-site programmable gate array FPGA.
Also include high speed transmission of signals, high speed signal control, system information interaction inside FPGA in described step (2)
Processing procedure.
Advantages of the present invention：
The first local oscillator unit of the present invention employs monocyclic phase-locking type fractional frequency division frequency synthesis technique, makes the locking of loop
Time is greatly improved than past multiring structure, and the FPGA using low-power consumption realizes fractional frequency division frequency synthesis technique；This
The purity of frequency spectrum of invention realizes that by the noise reduction techniques of combined filter and loop frequency response is by increasing in local oscillator output
Plus pre- fixed ampllitude is realizing；The present invention pressuring controlling oscillator frequency scope be 2636MHz～3636MHz, reference frequency 10MHz, this
Plant being designed with for high reference frequency and suppress noise beneficial in the case of increase loop bandwidth, so as to further improve frequency conversion
Time, accelerate the scanning speed that phase is locked in pointwise；The present invention carries out the to meet requirement of the multi-channel RF radio frequency frequency conversion to local oscillator
The many local oscillator networking designs of one local oscillator, and carry out multi output design；Second local oscillator is using point frequency high performance local oscillator design, and carries out
Multiport output is processed；
The present invention is based on Software Radio Theory, Digital Signal Processing and embedded development technology, with reference to high-performance
Local oscillator group design, maximum transmission rate up to 10.52Gb/s real-time optical fiber high speed data transfer treatment technology, adopt high-performance
ADC the and DAC hardware structures of FPGA+ high-bit widths, high sampling rate, solve high speed signal Real-time demodulation, high-throughput concurrent testing,
Realize communicate to the 5G transmitting of two-forty signal, reception, transmission, detection, modulation, demodulation, coding, decoding, analysis, test etc..
Description of the drawings
Fig. 1 is the theory diagram of 5G communication high rate data transmission device of the present invention based on local oscillator module.
Fig. 2 is the structural representation of local oscillator module of the present invention.
Fig. 3 is the structural representation of the first local oscillator unit of the invention and the second local oscillator unit.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
See Fig. 1, a kind of 5G communication high rate data transmission devices based on local oscillator module include 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 modules 3, ADC 4, DAC moulds
Block 5 and DDR memory 6；
See Fig. 2 and Fig. 3, local oscillator module 2 includes the attenuator 21 that four tunnels are sequentially connected, prefilter 22, radio frequency and puts
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 modules 212；The
One local oscillator unit 28 include be sequentially connected the first preamplifier 281, PD phase discriminators 282, first integrator unit
283rd, the first wave 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 of fractional frequency division module 287 is connected with the outfan of the first wave filter 284, fractional frequency division module 287
Outfan be connected with the input of PD phase discriminators 282, control module 288 is connected 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 is included
The second preamplifier 291 for being sequentially connected, the 2nd PD phase discriminators 292, second integral device unit 293, the second wave 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 connected with the outfan of the second wave filter 294, the input of the outfan and the 2nd PD phase discriminators 292 of fixed frequency division module 297
End connection；First preamplifier 281, the input of the second preamplifier 291 are connected with the outfan of voltage controlled oscillator 210
Connect；Second postfilter 27 is connected with corresponding intermediate-frequency filter 211, and the input of four the first multipliers of tunnel 24 is with first
First output unit 286 of local oscillator unit connects, the input of four the second multipliers of tunnel 26 with the second local oscillator unit second
Output unit 296 connects；ADC 4 includes four, and the outfan of each AGC module 212 is defeated with corresponding ADC 4
Enter end connection；The intermediate-freuqncy signal of the output of the second 29 second output unit of local oscillator unit 296 is 4-8GHz, is produced by doubler 298
The frequency of raw fifth harmonic 20-40GHz, subsequently into the input of the second multiplier 26.
Wherein, the sampling resolution of ADC 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 exported for six tunnels, and the second of the second local oscillator unit
Output unit 296 is exported for 12 tunnels.
A kind of 5G communication high rate data transmission methods based on local oscillator module, have specifically included following steps：
(1), 5G analog communication signals by RF passages sequentially enter a 5G communicate high rate data transmission device attenuator 21,
The signal exported with the first local oscillator unit 28 after prefilter 22, radio frequency amplifier 23 is at the first multiplier 24
Reason, the signal after then processing enter the first postfilter 25, then enter second with the signal of the output of the second local oscillator unit 29
Multiplier 26 is processed, and the second postfilters of Jing 27 are filtered process formation intermediate-freuqncy signal to the signal after process again, most
After by intermediate-frequency filter 211, AGC modules 212 and ADC 4, become digital signal and enter field programmable gate array
FPGA1 carries out signal processing；
(2) the signal Jing DAC modules 5 after, processing are converted into 5G analog communication signals, and 5G analog communication signals pass through optical fiber
The SFP optic modules 3 of another 5G communications high rate data transmission device are transferred to, SFP optic modules 3 will be 5G analog communication signals incoming
FPGA 1 is processed, 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 data after process incoming DDR memory 6, DDR memory 6 is cached to data, finally
Analog-to-digital conversion process is carried out into ADC 4.
Step (1) carries out local oscillation signal process, optical fiber of the step (2) to 5G analog communication signals to 5G analog communication signals
Transmission is tested and is verified.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (9)
1. a kind of 5G communication high rate data transmission devices based on local oscillator module, it is characterised in that：Include field-programmable gate array
Row FPGA, respectively the local oscillator module of on-site programmable gate array FPGA connection, SFP optic modules, ADC, DAC module and
DDR memory；
Described local oscillator module includes the first local oscillator unit, the second local oscillator unit, voltage controlled oscillator, and is sequentially connected with
The intermediate-frequency filter and AGC modules of two local oscillator unit rear ends；Before the first described local oscillator unit includes first for being sequentially connected
Amplifier, PD phase discriminators, first integrator unit, the first wave filter, the first post amplifier and the first output unit are put,
And fractional frequency division module and control module；The outfan of the input and the first wave filter of described fractional frequency division module connects
Connect, the outfan of fractional frequency division module is connected with the input of PD phase discriminators, control module is connected with fractional frequency division module,
And control module includes frequency sweep control module, synchronization control module and fractional frequency division control module；The second described local oscillator list
Unit include be sequentially connected the second preamplifier, the 2nd PD phase discriminators, second integral device unit, the second wave filter, second
Post amplifier and the second output unit, and fixed frequency division module；The input of described fixed frequency division module and the second filter
The outfan connection of ripple device, the outfan of fixed frequency division module are connected with the input of the 2nd PD phase discriminators；Before described first
Put amplifier, the input of the second preamplifier is connected with the outfan of voltage controlled oscillator；The output of described AGC modules
End is connected with the input of ADC.
2. a kind of 5G communication high rate data transmission devices based on local oscillator module according to claim 1, it is characterised in that：Institute
The local oscillator module stated also include the attenuator that multichannel is sequentially connected, prefilter, radio frequency amplifier, the first multiplier,
One postfilter, the second multiplier and the second postfilter, described intermediate-frequency filter and AGC modules are for multigroup, described
ADC for multiple；The second described postfilter is connected with corresponding intermediate-frequency filter, described AGC modules it is defeated
Go out end to connect with the input of corresponding ADC；The input of described the first multiplier of multichannel with the first local oscillator unit
The connection of the first output unit, the second output unit of the input of described the second multiplier of multichannel with the second local oscillator unit
Connection.
3. a kind of 5G communication high rate data transmission devices based on local oscillator module according to claim 1, it is characterised in that：Institute
The intermediate-freuqncy signal of the second output unit output stated is 4-8GHz, produces the frequency of fifth harmonic 20-40GHz by doubler.
4. a kind of 5G communication high rate data transmission devices based on local oscillator module according to claim 1, it is characterised in that：Institute
The every group of local oscillator module stated includes two the first local oscillator units, and the first output unit of the first local oscillator unit is exported for six tunnels,
Second output unit of the second local oscillator unit is exported for 12 tunnels.
5. a kind of 5G communication high rate data transmission devices based on local oscillator module according to claim 1, it is characterised in that：Institute
The sampling resolution of the ADC stated is 12, and single sampling reaches 3.6Gsps；The sampling resolution of described DAC module is 14, single
Sampling can 2.7Gsps.
6. a kind of 5G communication high rate data transmission devices based on local oscillator module according to claim 2, it is characterised in that：Institute
The local oscillator module stated also include the attenuator that four tunnels are sequentially connected, prefilter, radio frequency amplifier, the first multiplier,
Four groups of one postfilter, the second multiplier and the second postfilter, described intermediate-frequency filter and AGC modules, it is described
ADC is four.
7. a kind of 5G communication high rate data transmission methods based on local oscillator module according to claim 1, it is characterised in that：Tool
Body includes following steps：
(1), 5G analog communication signals by RF passages sequentially enter a 5G communicate high rate data transmission device the first local oscillator unit,
After second local oscillator unit, intermediate-frequency filter, AGC modules and ADC, become digital signal and enter field programmable gate array
FPGA carries out signal processing；
(2) the signal Jing DAC modules after, processing are converted into 5G analog communication signals, and 5G analog communication signals pass through fiber-optic transfer
To the SFP optic modules of another 5G communication high rate data transmission devices, 5G analog communication signals incoming FPGA is entered by SFP optic modules
Row is processed, and CPRI protocol processes are carried out inside FPGA, then by the incoming DDR memory of data after process, DDR memory pair
Data are cached, and finally entering ADC carries out analog-to-digital conversion process.
8. a kind of 5G communication high rate data transmission methods based on local oscillator module according to claim 7, it is characterised in that：Institute
In the step of stating (1) 5G analog communication signals by RF passages sequentially enter a 5G communicate high rate data transmission device attenuator,
Processed into the first multiplier with the signal of the first local oscillator unit output after prefilter, radio frequency amplifier, then located
Signal after reason enters the first postfilter, then the signal exported with the second local oscillator unit is at the second multiplier
Reason, the signal after process again the second postfilters of Jing be filtered process formed intermediate-freuqncy signal, most after Jing intermediate-frequency filters,
After AGC modules and ADC, becoming digital signal carries out signal processing into on-site programmable gate array FPGA.
9. a kind of 5G communication high rate data transmission methods based on local oscillator module according to claim 7, it is characterised in that：Institute
Also include high speed transmission of signals, high speed signal control, system information iterative process inside FPGA in the step of stating (2).
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