CN206323369U - A kind of new multi-standard full frequency band radio-frequency signal generator - Google Patents
A kind of new multi-standard full frequency band radio-frequency signal generator Download PDFInfo
- Publication number
- CN206323369U CN206323369U CN201621454309.9U CN201621454309U CN206323369U CN 206323369 U CN206323369 U CN 206323369U CN 201621454309 U CN201621454309 U CN 201621454309U CN 206323369 U CN206323369 U CN 206323369U
- Authority
- CN
- China
- Prior art keywords
- digital
- converter
- circuit module
- filter coefficients
- frequency band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of multi-standard full frequency band radio-frequency signal generator, its 2G/3G/4G baseband signal generator and numerical selector, the digital up converter of 2G variable filter coefficients, the digital up converter of 3G variable filter coefficients, the digital up converter of 4G variable filter coefficients, digital combiner, D/A converter, full frequency band RF circuit module, clock circuit module, microchip control circuit module for including PC and its connecting respectively.This multi-standard full frequency band radio-frequency signal generator has excellent performance, feasibility good, and system flexibility and scalability are strong, it is easy to accomplish the miniaturization of system, low-power consumption.
Description
Technical field
The utility model is related to moving communicating field, more particularly to a kind of new multi-standard full frequency band radiofrequency signal occurs
Device.
Background technology
Radio-frequency signal generator can be used as reference in mobile communications using relatively broad, its radiofrequency signal produced
Signal source of clock, can also be used as normative reference signal etc. as test and excitation signal.Nowadays, common radiofrequency signal
Generator function phase is to single, otherwise specific communication standard is only supported, otherwise the communication system of single carrier can only be applicable.
Increase with the demand of multicarrier system, the communication system of overloading wave energy is supported in the urgent need to developing, this
Sample, it is necessary to which multi-carrier signal source carries out related test and checking in Communication System Development.Therefore, the full frequency band of multicarrier
Radio-frequency signal generator is also that urgent need obtains development and application.
The thought of software radio is on a general hardware platform, to be realized by way of software is loaded with software
The function of all radio stations.After such a preferable software-defined radio concept, all systems and standard are more
Newly, and the compatibility between different system, it can be completed by more preferably appropriate software, both save the expense of networking again
With, shorten again from research to application cycle.
Utility model content
The purpose of this utility model is the shortcoming for overcoming prior art, reasonably using software and radio technique, is proposed
A kind of to support various kinds of mobile communication system, the multi-standard full frequency band radiofrequency signal that multi-carrier signal processing can be handled again occurs
Device, the utility model is based on digital if technology, can effectively reduce the produced intermodulation of multi-carrier signal output and interference etc., carry
High systematic function, reduction system cost and power consumption, it is easy to accomplish the miniaturization of system, miniaturization.
This multi-standard full frequency band radio-frequency signal generator, including PC and its connect respectively 2G/3G/4G baseband signals hair
Raw device and numerical selector, the digital up converter of 2G variable filter coefficients, the Digital Up Convert of 3G variable filter coefficients
Device, the digital up converter of 4G variable filter coefficients, digital combiner, D/A converter, full frequency band RF circuit module, when
Clock circuit module, microchip control circuit module, and the 2G/3G/4G baseband signal generators can also with numerical selector, 2G
Become the digital up converter, the digital up converter of 3G variable filter coefficients, 4G variable filter coefficients of filter coefficient
Digital up converter, digital combiner, D/A converter, full frequency band RF circuit module are sequentially connected；The clock circuit module
It is also variable with 2G/3G/4G baseband signal generators and numerical selector, the digital up converter of 2G variable filter coefficients, 3G
The digital up converter of filter coefficient, the digital up converter of 4G variable filter coefficients, digital combiner, D/A converter,
Full frequency band RF circuit module is connected simultaneously；The microchip control circuit module also with 2G/3G/4G baseband signal generators and
Numerical selector, the digital up converter of 2G variable filter coefficients, the digital up converter of 3G variable filter coefficients, 4G can
The digital up converter of change filter coefficient, digital combiner, D/A converter, full frequency band RF circuit module are connected simultaneously；Institute
Full frequency band RF circuit module is stated provided with multi-standard multicarrier RF signal output.
For the utility model is better achieved, the multi-standard full frequency band radio-frequency signal generator is provided with numerical selector
With digital combiner, by the selecting switch of numerical selector, the standards such as 2G, 3G, 4G can be independently selected, can also be selected simultaneously
Select multiple types；By digital combiner, the signal combining of the multiple types of selection can be exported to export a variety of simultaneously
The signal of standard.Therefore, this multi-standard full frequency band radio-frequency signal generator, can export single communication system, such as 2G, overloading
Ripple radiofrequency signal, can also export a variety of communication systems simultaneously, such as 2G and 3G either 2G, 3G and 4G, multicarrier radio frequency letter
Number；
The 2G/3G/4G baseband signal generators include be sequentially connected multi-standard protocol resolver, signal generator and
Pulse shaped filter；The Pulse shaped filter is provided with 2G/3G/4G baseband signal generator output ends；
The full frequency band RF circuit module includes bandpass filter, analog attenuator (simulating ATT), amplifier, mixed
Frequency device, local oscillator LO and radio-frequency filter, the bandpass filter pass sequentially through simulation ATT, amplifier, frequency mixer and rf filtering
Device is connected, and the local oscillator LO is connected with frequency mixer.
Wherein, full frequency band RF circuit module at least includes following operator and frequency range, and specific frequency range is：
China Mobile：
GSM：890-909/935-954MHz
TD-SCDMA：2010-2025MHz
TD-LTE：1880-1920MHz, 2575-2635MHz and 2300M-24000M
CHINAUNICOM：
GSM：909-915/954-960MHz
WCDMA：1950-1955/2130-2145MHz
FDD-LTE：1755-1765/1850-1860MHz
1955-1980/2145-2170MHz
China Telecom：
FDD-LTE：1755-1785/1850-1880MHz
1920-1940/2110-2130MHz
CDMA：870-880MHz.
It is variable that the digital up converter of the 2G variable filters coefficient includes data parallel-serial conversion processing module, the first order
Coefficient interpolation wave filter group, multi-channel digital oscillator, first order complex modulation and signal accumulation processor, the variable system in the second level
Number interpolation filter group, second level complex modulation processor single channel digital oscillator, the data parallel-serial conversion processing module
Input is connected with the output end of the numerical selector；The output end of the data parallel-serial conversion processing module passes sequentially through
One-level variable coefficient interpolation filter group, first order complex modulation and signal accumulation processor, the filter of second level variable coefficient interpolation
Ripple device group, the connection of second level complex modulation processor input；The output end of the multi-channel digital oscillator is answered with the first order
The input of number modulation and signal accumulation processor is connected；The output end of the single channel digital oscillator is adjusted with second level plural number
The input connection of processor processed.
Wherein, the digital up converter of the 3G variable filters coefficient, the Digital Up Convert of 4G variable filter coefficients
The principle of device is as the digital up converter of 2G variable filter coefficients, and only filter coefficient is different.
The utility model has the following advantages that and beneficial effect compared with prior art：
1st, multi-standard full frequency band radio-frequency signal generator of the present utility model, goes for all Mobile Terminals
System, can produce the radiofrequency signal of any carrier number, with good applicability and compatibility；
2nd, the utility model combines the restricted of current device, it is proposed that be correspondingly improved method so that system has very
Good feasibility, it is easy to accomplish miniaturization, the Multi-carrier low intermediate frequency signal generator of low-power consumption.
Brief description of the drawings
Fig. 1 is one embodiment structural representation of multi-standard full frequency band radio-frequency signal generator of the present utility model；
Fig. 2 is the baseband I of one embodiment of the present utility model, the structural representation of Q signal generator；
Fig. 3 is the radio-frequency transmissions subsystem theory diagram that one embodiment is used in the utility model；
Fig. 4 is a kind of structure of the digital up converter for variable filter coefficient that the utility model one embodiment is proposed
Schematic diagram.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment
One embodiment of multi-standard full frequency band radio-frequency signal generator as shown in Figure 1, including PC 101 and its difference
The 2G/3G/4G baseband signal generators 107 of connection and numerical selector 106, the digital up converter of 2G variable filter coefficients
111st, the digital up converter 112 of 3G variable filters coefficient, the digital up converter 113 of 4G variable filter coefficients, numeral
Combiner 104, D/A converter 105, full frequency band RF circuit module 108, clock circuit module 102, microchip control circuit mould
Block 103, and numeral of the 2G/3G/4G baseband signal generators 107 also with numerical selector 106,2G variable filter coefficients
Upconverter 111, the digital up converter 112 of 3G variable filter coefficients, the digital up converter of 4G variable filter coefficients
113rd, digital combiner 104, D/A converter 105, full frequency band RF circuit module 108 are sequentially connected；The clock circuit module
102 also with 2G/3G/4G baseband signal generators 107 and numerical selector 106, the Digital Up Convert of 2G variable filter coefficients
Device 111, the digital up converter 112 of 3G variable filter coefficients, the digital up converter 113 of 4G variable filter coefficients, number
Word combiner 104, D/A converter 105, full frequency band RF circuit module 108 are connected simultaneously；The microchip control circuit module
103 also with 2G/3G/4G baseband signal generators 107 and numerical selector 106, the Digital Up Convert of 2G variable filter coefficients
Device 111, the digital up converter 112 of 3G variable filter coefficients, the digital up converter 113 of 4G variable filter coefficients, number
Word combiner 104, D/A converter 105, full frequency band RF circuit module 108 are connected simultaneously；The full frequency band RF circuit module
108 are provided with multi-standard multicarrier RF signal output.
Wherein D/A converter is one of key modules in multi-standard full frequency band radio-frequency signal generator, is realized in numeral
The digital-to-analogue conversion processing of frequency signal, exports analog if signal.D/A converter conversion accuracy and intermodulation index, to multi-standard
The performance of full frequency band radio-frequency signal generator has a great impact.It is therefore desirable to according to the application demand of generator, rational choosing
Select corresponding D/A converter.
Clock circuit module provides for the subsystems and module in whole multi-standard full frequency band radio-frequency signal generator
Reference clock signal, and it is responsible for Clock management and the distribution of signal generator, realize that frequency dividing, frequency multiplication of clock etc. are handled.
The control of the microchip control whole signal generator mode of operation of (MCU) subsystem responsible and working state monitoring.
It can be monitored and alarming processing with each submodule of receiver system by system bus.If a certain subsystem or son
There is operation irregularity in module, carries out system reset processing, and carry out alarm report processing.The journey of MCU subsystems also whole system
Sequence is downloaded and updated, such as download of FPGA, DSP program.
PC can control any subsystem of whole signal generator, realize the configuration to some parameters in system and repair
Change, can such as configure reference clock, the wave filter system of the digital up converter of modification 2G variable filter coefficients of whole system
It is number, output frequency, power output etc., the filter coefficient of the digital up converter of 3G variable filter coefficients, output frequency, defeated
Go out power etc., the filter coefficient of the digital up converter of 4G variable filter coefficients, output frequency, power output etc..
As shown in Figure 2,2G/3G/4G baseband signal generators function be produce meet standard communication protocol requirement 2G,
3G, 4G zero intermediate frequency I, Q signal.Baseband I, Q signal generator needs such as the GSM systems in 2G are produced meeting gsm protocol
TDMA frame signal, and data are encoded and GMSK modulation processing, form digital baseband I, Q signal.The utility model one
2G/3G/4G baseband signal generators 207 in embodiment include three subsystems：Multi-standard protocol resolver 217, signal hair
Raw device 227 and Pulse shaped filter 237.The output end of multi-standard protocol resolver 217 and signal generator 227, pulse into
Mode filter 237 is sequentially connected.The main standard agreement announced according to different communication system of multi-standard protocol resolver is advised
Model, generation meets the control signal of protocol requirement, including 2G, 3G and 4G.Because multi-standard full frequency band radio-frequency signal generator is needed
Compatible a variety of communication standards are wanted, therefore, protocol resolver can parse the signal of different systems.Signal generator is received from many
The control signal of standard protocol resolver, forms baseband I, the Q signal for meeting standard protocol specification.Pulse shaped filter according to
Emitter requirement, pulse-shaping and filtering process, the filtered baseband I of output pulse-shaping, Q letters are carried out to baseband I, Q signal
Number.Because Pulse shaped filter can also be handled in frequency conversion system in number, so, according to system requirements and design
Actual conditions, Pulse shaped filter can not be included in baseband I, Q signal generator, and Pulse shaped filter is embedded in
Into digital up converter.
Full frequency band RF circuit module 308 in the utility model one embodiment as shown in Figure 3, including bandpass filter
318th, simulation ATT328, amplifier 338, frequency mixer 348, local oscillator LO368 and radio-frequency filter 358, bandpass filter 318, mould
Intend ATT328, amplifier 338, frequency mixer 348 and radio-frequency filter 358 to connect successively, local oscillator LO368 connects with frequency mixer 348
Connect.Full frequency band RF circuit module receive from D/A converter export multimode Low Medium Frequency analog signal, by analog frequency mixing,
The processing such as amplification, filtering, export radio frequency analog multimode signal.
Wherein, full frequency band RF circuit module at least includes following operator and frequency range, and specific frequency range is：
China Mobile：
GSM：890-909/935-954MHz
TD-SCDMA：2010-2025MHz
TD-LTE：1880-1920MHz, 2575-2635MHz and 2300M-24000M
CHINAUNICOM：
GSM：909-915/954-960MHz
WCDMA：1950-1955/2130-2145MHz
FDD-LTE：1755-1765/1850-1860MHz
1955-1980/2145-2170MHz
China Telecom：
FDD-LTE：1755-1785/1850-1880MHz
1920-1940/2110-2130MHz
CDMA：870-880MHz.
As shown in Figure 4, the utility model proposes a kind of variable filter coefficient digital up converter 411, including number
According to parallel-serial conversion processing module 4111, first order variable coefficient interpolation filter group 4112, multi-channel digital oscillator 4113,
One-level complex modulation and signal accumulation processor 4114, second level variable coefficient interpolation filter group 4115, second level plural number are adjusted
Processor 4116 and single channel digital oscillator 4117 processed, the data parallel-serial conversion processing module 4111, the variable system of the first order
Number interpolation filter group 4112, first order complex modulation and signal accumulation processor 4114, second level variable coefficient interpolation filtering
Device group 4116 is sequentially connected, output end and the first order complex modulation and the cumulative place of signal of the multi-channel digital oscillator 4113
Manage the input connection of device 4114, output end and the second level complex modulation processor of the single channel digital oscillator 4117
4116 input connection, the data parallel-serial conversion processing module 4114 is connected with multiple channel data output signals.In Fig. 4
To multi-channel data output signal in the digital up converter of proposition, i.e., data channel 1, data channel 2 ... data channel N is simultaneously
The I of row output, Q data have carried out the processing of data parallel-serial conversion, by the parallel data of output, are converted to serial I, Q data stream,
In this manner it is possible to complete the interpolation and filtering process to N channel I, Q data using same interpolation filter group.Therefore, so
Processing mode, the utilization rate of first order variable coefficient interpolation filter group is improved, so as to save the utilization of resources.
As described above, just can preferably realize the utility model, above-described embodiment is the utility model preferably embodiment party
Formula, but embodiment of the present utility model and be not restricted to the described embodiments, it is other any without departing from of the present utility model
Spirit Essence and the change made under principle, modification, replacement, combine, simplify, should be equivalent substitute mode, be included in
Within protection domain of the present utility model.
Claims (2)
1. multi-standard full frequency band radio-frequency signal generator, it is characterised in that：The 2G/3G/4G bases connected including PC and its respectively
Band signal generator and numerical selector, the digital up converter of 2G variable filter coefficients, the number of 3G variable filter coefficients
Word upconverter, the digital up converter of 4G variable filter coefficients, digital combiner, D/A converter, full frequency band radio circuit
Module, clock circuit module, microchip control circuit module；
The 2G/3G/4G baseband signal generators also with numerical selector, the digital up converter of 2G variable filter coefficients,
The digital up converter of 3G variable filter coefficients, the digital up converter of 4G variable filter coefficients, digital combiner, D/A
Converter, full frequency band RF circuit module are sequentially connected；
The clock circuit module also with 2G/3G/4G baseband signal generators and numerical selector, 2G variable filter coefficients
Digital up converter, the digital up converter of 3G variable filter coefficients, the digital up converter of 4G variable filter coefficients, number
Word combiner, D/A converter, full frequency band RF circuit module are connected simultaneously；
The microchip control circuit module also with 2G/3G/4G baseband signal generators and numerical selector, 2G variable filters
The digital up converter of coefficient, the digital up converter of 3G variable filter coefficients, the numerically change of 4G variable filter coefficients
Frequency device, digital combiner, D/A converter, full frequency band RF circuit module are connected simultaneously；
The full frequency band RF circuit module is provided with multi-standard multicarrier RF signal output.
2. multi-standard full frequency band radio-frequency signal generator according to claim 1, it is characterised in that：It is provided with numerical selector
With digital combiner, by the selecting switch of numerical selector, independent selection 2G, 3G, 4G standard or simultaneous selection multiple types；
By digital combiner, the signal combining of the multiple types of selection is exported to realize while exporting the letter of multiple types
Number, or the multicarrier radiofrequency signal of single communication system is exported, or the multicarrier radiofrequency signal of a variety of communication systems is exported simultaneously；
The 2G/3G/4G baseband signal generators include multi-standard protocol resolver, signal generator and the pulse being sequentially connected
Formed filter；
The Pulse shaped filter is provided with 2G/3G/4G baseband signal generator output ends.
The full frequency band RF circuit module includes bandpass filter, analog attenuator, amplifier, frequency mixer, local oscillator LO and penetrated
Frequency wave filter, the bandpass filter passes sequentially through analog attenuator, amplifier, frequency mixer and radio-frequency filter and connected, described
Local oscillator LO is connected with frequency mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621454309.9U CN206323369U (en) | 2016-12-28 | 2016-12-28 | A kind of new multi-standard full frequency band radio-frequency signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621454309.9U CN206323369U (en) | 2016-12-28 | 2016-12-28 | A kind of new multi-standard full frequency band radio-frequency signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206323369U true CN206323369U (en) | 2017-07-11 |
Family
ID=59260511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621454309.9U Expired - Fee Related CN206323369U (en) | 2016-12-28 | 2016-12-28 | A kind of new multi-standard full frequency band radio-frequency signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206323369U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474353A (en) * | 2018-12-29 | 2019-03-15 | 中科院计算技术研究所南京移动通信与计算创新研究院 | A kind of arbitrary waveform generator and method based on modelling, storage medium |
| CN109687884A (en) * | 2018-12-27 | 2019-04-26 | 中科院计算技术研究所南京移动通信与计算创新研究院 | A kind of digital receiver filter coefficient reloading method, apparatus and storage medium |
| CN110365361A (en) * | 2019-07-09 | 2019-10-22 | 上海金卓网络科技有限公司 | Radio frequency interface controller, communication means, baseband chip and communication system |
-
2016
- 2016-12-28 CN CN201621454309.9U patent/CN206323369U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687884A (en) * | 2018-12-27 | 2019-04-26 | 中科院计算技术研究所南京移动通信与计算创新研究院 | A kind of digital receiver filter coefficient reloading method, apparatus and storage medium |
| CN109474353A (en) * | 2018-12-29 | 2019-03-15 | 中科院计算技术研究所南京移动通信与计算创新研究院 | A kind of arbitrary waveform generator and method based on modelling, storage medium |
| CN109474353B (en) * | 2018-12-29 | 2023-09-12 | 中科南京移动通信与计算创新研究院 | Random waveform generator based on model design, random waveform generation method based on model design and storage medium |
| CN110365361A (en) * | 2019-07-09 | 2019-10-22 | 上海金卓网络科技有限公司 | Radio frequency interface controller, communication means, baseband chip and communication system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100593913C (en) | Multi-carrier transmitter based on digital middle frequency technology and its carrier transmission method | |
| CN103647529A (en) | Multimode signal generating device and signal generating method thereof | |
| CN103973396B (en) | Transmit the method, apparatus and radio frequency remoto module RRU of radio base band data | |
| CN206323369U (en) | A kind of new multi-standard full frequency band radio-frequency signal generator | |
| CN102118334B (en) | Method and device for processing digital predistortion | |
| CN102299878B (en) | Method and device for realizing multi-band digital predistortion (DPD) | |
| CN102857931B (en) | Base station system and communication networking method | |
| CN101340256A (en) | Multi-mode RF signal generator and signal generating method thereof | |
| CN109274381A (en) | A kind of multi-frequency band mobile communication radio frequency transceiver | |
| CN110830057A (en) | Multichannel universal wireless signal transmitting equipment based on software radio architecture | |
| CN103716096B (en) | Repeater carrier wave fluctuation calibration steps and device | |
| CN102104391B (en) | Intermediate-frequency filtering device and method | |
| CN201114009Y (en) | Digital frequency conversion system | |
| CN103684654B (en) | Cellular mobile communication radio-frequency signal interference device in passenger aircraft passenger cabin | |
| CN101635575B (en) | Four-channel shortwave digital signal processing platform based on software radio | |
| CN105119628A (en) | Frequency-selecting device of ARC digital intercom system | |
| CN105227511A (en) | A kind of microwave and millimeter wave signal of communication method for generation based on frequency multiplication mode | |
| CN105162540B (en) | Wireless digital broadcasting station | |
| CN201114160Y (en) | Multicarrier transmitter based on digital intermediate frequency technology | |
| CN203896321U (en) | Multi-mode signal generating device | |
| CN203788468U (en) | Digital optical fiber remote device with GSM, DCS, TD-SCDMA and WLAN coexistence | |
| CN201114050Y (en) | Multi- carrier digital frequency-selecting wireless repeater station system | |
| CN102055407B (en) | Digital up converter and digital down converter of long term evolution (LTE) radiofrequency remote end unit and flexible bandwidth configuration method | |
| CN105208686B (en) | It polymerize multi-carrier-wave wireless wide band radio-frequency processing unit based on the discrete frequency point of 230MHz | |
| CN206272603U (en) | A kind of multiple carrier digital signal source based on software and radio technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20191228 |