CN102421133B - Mode switching method of multi-mode mobile terminal test equipment and apparatus thereof - Google Patents
Mode switching method of multi-mode mobile terminal test equipment and apparatus thereof Download PDFInfo
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- CN102421133B CN102421133B CN201110384284.5A CN201110384284A CN102421133B CN 102421133 B CN102421133 B CN 102421133B CN 201110384284 A CN201110384284 A CN 201110384284A CN 102421133 B CN102421133 B CN 102421133B
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Abstract
The invention discloses a mode switching method of multi-mode mobile terminal test equipment and an apparatus thereof, wherein, a radio frequency module converts a radio frequency signal of a detected terminal into an analog intermediate frequency signal; a digital analog conversion module converts the analog intermediate frequency signal into a digital intermediate frequency signal; a digital intermediate frequency processing module carries out processing on the digital intermediate frequency signal to obtain base-band digital signals of rates corresponding to different communication modes and respectively outputs the base-band digital signals to corresponding signaling processing modules; the signaling processing modules carry out uplink channel demodulation and protocol processing on the signals outputted by the digital intermediate frequency processing module, and according to a communication mode switching command, when a target communication mode is a communication mode corresponding to a present module, output a downlink channel modulation signal processed by the present module to the digital intermediate frequency processing module; according to an uplink signal outputted by the digital intermediate frequency processing module, and according to a given measurement type, the measuring module carries out uplink signal measurement. By employing the method and the apparatus in the invention, system mode switching efficiency is raised.
Description
Technical field
The present invention relates to the mobile communication terminal measuring technology in communication technical field, relate in particular to a kind of mode switching method and device of multi-mode mobile terminal test equipment.
Background technology
3-G (Generation Three mobile communication system) (3G), the advantages such as its GSM compared to 2G (Global System for Mobile Communications, global system for mobile telecommunications) system and other wireless communication systems have that user capacity is large, wide coverage, suitable up-downgoing non-symmetrical service, the availability of frequency spectrum is high, equipment cost is low and system frequency resource is abundant.At present, along with TD-SCDMA (Time-Division Synchronization Code Division-Multiple-Access, Time Division-Synchronous Code Division Multiple Access) process of extensive commercialization constantly advances, and domestic dual-mode terminal is able to large-scale production application.
In terminal production process, the speed of production of terminal and test accuracy are very important indexs.Because mobile terminal mostly is multimode system, this has higher requirement to production test speed and cost.For ensureing that thereby dual-mode terminal can be switched the continuity that ensures basic service by XiangGSM community, TD-SCDMA community with high success rate, support that TD-SCDMA will play vital effect to the TD-SCDMA multimode terminal comprehensive test instrument of GSM direct-cut operation in the commercial process of TD-SCDMA terminal.On the other hand, due to WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system extensive use worldwide, support the R&D and promotion of WCDMA to the multimode terminal comprehensive test instrument of the efficient direct-cut operation of GSM, also have great importance for competition and the development of domestic instrument industry and mobile terminal production industry.
Traditional UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system)/GSM dual-mode terminal comprehensive test instrument adopts injection hardware frequently, single system simulator conventionally.Tester is operated in GSM pattern lower time, clock-generating device produces the reference clock with the multiple speed of 270.833KHz, analog if signal is carried out to mould/number (A/D) and D/A (D/A) conversion (analog if signal being carried out to 48 samplings as GSM can adopt the clock of 13MHz), and data are sent to system simulator and carry out demodulation and measurement.When tester is switched to UMTS pattern lower time, need to reset clock-generating device and produce reference clock with the integral multiple of 1.28MHz to analog if signal sampling (analog if signal being carried out to 96 samplings as TD-SCDMA can adopt the clock of 122.88MHz), and the program that need to upgrade system simulator operation, has made it UMTS system simulator function.
Pattern switching is divided into two kinds of situations according to the state that moment measured terminal occurs: under the direct-cut operation under connection status and disconnected state, switch. while switching under disconnected state, only need (the radio frequency to the RF of tester own, radio frequency) operating frequency, AD/DA sampling clock, Digital IF Processing part completes setting and reprovision and system simulator software, and carry out not only having needed while switching under connection status all working switching under whole disconnected states, but also need to carry out Signalling exchange with measured terminal, and guiding terminal switches to target operating state in the situation that of call drop not, this has proposed requirements at the higher level to speed and the success rate switched.
Prior art scheme, need to reconfigure radio-frequency module, clock-generating device and Digital IF Processing module, and while switching between system pattern like this, its switching flow is longer, causes the processing time longer, affects production line testing efficiency.And need to reload simulator working procedure in handoff procedure, processing complexity increase has the risk that loading is failed, the basic service continuity of impact in multimode system test.
Summary of the invention
The embodiment of the present invention provides a kind of mode switching method and device of multi-mode mobile terminal test equipment, for improving system pattern switching efficiency.
The multi-mode mobile terminal test equipment that the embodiment of the present invention provides, comprising: radio-frequency module, D/A converter module, Digital IF Processing module, and the signaling processing module of at least two different communication modes, wherein:
Radio-frequency module, be converted to analog if signal for the radiofrequency signal of on up direction, tested multi-module mobile terminal being sent and export to D/A converter module, on down direction, the analog if signal of mould modular converter output is converted to radiofrequency signal and sends to tested multi-module mobile terminal;
D/A converter module, export to Digital IF Processing module for analog if signal being converted to digital medium-frequency signal on up direction, on down direction, the digital medium-frequency signal of Digital IF Processing module output is converted to analog if signal and exports to radio-frequency module;
Digital IF Processing module, at up direction, the digital medium-frequency signal of logarithmic mode modular converter output is processed, and obtains the baseband digital signal of the speed that different communication modes is corresponding, and exports to respectively corresponding signaling processing module and measurement module; On down direction, the signal of signaling processing module output corresponding to current communication pattern is carried out exporting to D/A converter module after Digital IF Processing;
Signaling processing module, for the signal of Digital IF Processing module output being carried out to up channel demodulation and protocol processes on up direction, and according to communication pattern switching command, in the time that destinations traffic pattern is communication pattern corresponding to this module, the down channel modulation signal after this resume module is exported to Digital IF Processing module;
Measurement module, according to the upward signal of Digital IF Processing module output, by given measurement type, carries out upward signal measurement.
Multi-module mobile terminal method of testing that above-mentioned multi-mode mobile terminal test equipment realizes that what the embodiment of the present invention provided utilize, comprising:
Radio-frequency module receives the radiofrequency signal that tested multi-module mobile terminal sends, and is converted into analog if signal and exports to D/A converter module;
D/A converter module is converted to digital medium-frequency signal by analog if signal and exports to Digital IF Processing module;
The digital medium-frequency signal of Digital IF Processing module logarithmic mode modular converter output is processed, obtain the baseband digital signal of the speed that different communication modes is corresponding, and export to respectively corresponding signaling processing module, and export to measurement module, so that measurement module is by given measurement type, carry out upward signal measurement;
Signaling processing module carries out up channel demodulation and protocol processes to the signal of Digital IF Processing module output, and according to communication pattern switching command, in the time that destinations traffic pattern is communication pattern corresponding to this module, the down channel modulation signal after this resume module is exported to Digital IF Processing module;
Digital IF Processing module carries out exporting to D/A converter module after Digital IF Processing to the signal of signaling processing module output corresponding to current communication pattern;
D/A converter module is converted to analog if signal by the digital medium-frequency signal of Digital IF Processing module output and exports to radio-frequency module;
Radio-frequency module is converted to radiofrequency signal by the analog if signal of mould modular converter output and sends to tested multi-module mobile terminal.
The above embodiment of the present invention, adopt the parallel processing of many signaling processing modules, mode of operation handover operation is processed by choose suitable data according to switching command in the operating signaling processing module of difference and test module, avoid conventional method in handoff procedure, to need to restart and load the problem of signaling handling procedure, improve system effectiveness, when having accelerated switch speed, reduce the risk that flow process is made mistakes, ensured the basic service continuity in multimode system test.
Brief description of the drawings
The pattern fast switching system general frame schematic diagram of the UMTS/GSM multi-module mobile terminal comprehensive test instrument that Fig. 1 provides for the embodiment of the present invention;
The quick switching flow schematic diagram of pattern of the UMTS/GSM multi-module mobile terminal comprehensive test instrument that Fig. 2 provides for the embodiment of the present invention;
The configuration diagram of the clock module of the UMTS/GSM multi-module mobile terminal comprehensive test instrument that Fig. 3 provides for the embodiment of the present invention;
The processing of UMTS/GSM multi-module mobile terminal comprehensive test instrument parallel schema upstream data and instrumentation plan that Fig. 4 provides for the embodiment of the present invention;
The UMTS/GSM multi-module mobile terminal comprehensive test instrument parallel schema downlink data processing schematic diagram that Fig. 5 provides for the embodiment of the present invention;
The relevant uplink/downlink of GSU processing signals of the GSM that Fig. 6 provides for the embodiment of the present invention is at the block diagram of realizing of FPGA inside;
The FPGA nonuniform sampling part digital signal processing device figure that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Taking UMTS and GSM multimode terminal comprehensive test instrument, UMTS/GSM dual-mode terminal is tested as example below, and by reference to the accompanying drawings, the pattern of multimode terminal testing equipment is switched to implementation procedure fast and be described in detail.Those skilled in the art will be understood that the multimode terminal for other communication type, and the thought that multimode terminal comprehensive test instrument also can provide based on the embodiment of the present invention is tested multimode terminal, and realize switching fast.
Referring to Fig. 1, the pattern fast switching system general frame schematic diagram of the UMTS/GSM multi-module mobile terminal comprehensive test instrument providing for the embodiment of the present invention.
As shown in the figure, mobile terminal (UE) 100 is connected to tester 200 by radio frequency (RF) module.Tester 200 comprises radio-frequency module 1, modulus/D/A converter module 2, Digital IF Processing module 3, UMTS signaling processing module 4, GSM signaling processing module 5, measurement module 6, clock module 7, also can comprise control/display module 8.Wherein, control function in control/display module 8 is for realizing the control processing of mode of operation switching etc., Presentation Function in control/display module 8 is for showing output to UMTS signaling processing module 4, GSM signaling processing module 5 and measurement module 6 signal after treatment, so that comparative analysis test result.
Clock module 7 provides reference clock signal to modulus/D/A converter module 2 and Digital IF Processing module 3, so that modulus/D/A converter module 2 is carried out modulus/digital-to-analogue conversion according to reference clock signal, Digital IF Processing module 3 is sampled to the signal of input according to reference clock signal, obtain the signal of the speed that is applicable to different working modes.
On up direction, the radiofrequency signal that EM equipment module 1 is sent tested UE is converted to analog if signal and exports to modulus/D/A converter module 2; Modulus/D/A converter module 2 is converted to digital medium-frequency signal by analog if signal and exports to Digital IF Processing module 3; The digital medium-frequency signal of Digital IF Processing module 3 logarithmic mode modular converter outputs is processed, obtain respectively the baseband digital signal of speed corresponding to UMTS pattern and GSM pattern, and corresponding baseband digital signal is exported to corresponding signaling processing module and carry out up channel demodulation and protocol processes, for example, the baseband digital signal of speed corresponding UMTS pattern is exported to UMTS signaling processing module 4, the baseband digital signal of speed corresponding GSM pattern is exported to GSM signaling processing module 5.Tester selects corresponding signaling processing module data after treatment to measure according to current mode of operation, for example, in the time that current mode of operation is UMTS pattern, tester selects UMTS signaling processing module 4 up channel restituted signals after treatment to measure, in the time that current mode of operation is GSM pattern, select GSM signaling processing module 5 up channel restituted signals after treatment to measure.
On down direction, according to current mode of operation, corresponding signaling processing module output baseband digital signal is to Digital IF Processing module 3 (while being UMTS pattern as work at present pattern, UMTS signaling processing module 4 is exported UMTS down channel modulating baseband digital signal to Digital IF Processing module 3, in the time that work at present pattern is GSM pattern, GSM signaling processing module 5 is exported GSM down channel modulating baseband digital signal to Digital IF Processing module 3), Digital IF Processing module 3 carries out exporting to modulus/D/A converter module 2 after Digital IF Processing to the baseband digital signal receiving, modulus/D/A converter module 2 is converted to analog if signal by the digital medium-frequency signal receiving and exports to radio-frequency module 1, radio-frequency module 1 is converted to radiofrequency signal by the analog if signal receiving and sends to tested UE.
Measurement module 6, mainly for the treatment of original base band data, finally according to work at present pattern, is exported measurement result and is completed Presentation Function by control/display module 8.
Concrete, measurement module 6 has been mainly used in upward signal to measure operation, that is, according to the signal of upstream digital intermediate frequency output, by given measurement type, complete upward signal and measure, and measurement module 6 can adopt existing mode to realize.After control/display module 8 is provided with parameters such as measuring type and trigger condition, radio-frequency module 1 and Digital IF Processing module 3 start respectively upward signal to be carried out to analog and digital signal power detection, and send to measurement module 6 in order to trigger judgement.The triggering mode that measurement module 6 is selected according to control/display module 8 selects to trigger judgment condition, waits for the up input signal that meets the condition of setting.In the time that up input signal meets trigger condition, measurement module 6 obtains upward signal and starts input signal is carried out to Measurement and analysis, and result is outputed to control/display module 8.
In the embodiment of the present invention, the signaling processing module of all working pattern in tester (comprising UMTS signaling processing module 4 and GSM signaling processing module 5) and measurement module all adopt parallel processing framework.In the time that system starts, the signaling processing module of all working pattern and measurement module all enter concurrent working state, can receive, send and process the sampled data that Digital IF Processing module 3 sends.Select the signal data of corresponding signaling processing module to process according to current UE test pattern.In the time that mode of operation is switched, only need to be according to switching command, to change to corresponding signaling processing module, and start the data of its processing to process, the quick mode that can complete in tester switches and measures.
The embodiment of the present invention, by utilize the parallel processing of many signaling processing modules in handoff procedure, has avoided conventional method in handoff procedure, to need to restart and load the problem of signal command board program, has improved system effectiveness, has reduced the risk that flow process is made mistakes.
Below in conjunction with Fig. 2 to Fig. 7, the quick switching flow of pattern of the UMTS/GSM multi-module mobile terminal comprehensive test instrument that the detailed description embodiment of the present invention provides and the structure of this testing equipment.
Referring to Fig. 2, the quick switching flow schematic diagram of pattern of the UMTS/GSM multi-module mobile terminal comprehensive test instrument providing for the embodiment of the present invention.
As shown in Figure 2, tested UE is connected to the radio-frequency module 1 of tester by RF cable, and radio-frequency module 1 completes the mutual conversion of radiofrequency signal and intermediate-freuqncy signal.The work clock that the fixing generated frequency of clock module 7 is 122.88MHz.Modulus/D/A converter module 2 utilizes this work clock to complete the mutual conversion of analog if signal and digital medium-frequency signal.In Digital IF Processing part, first apply NCO (numerical controlled oscillator, numerically-controlled oscillator) carry out the conversion of digital medium-frequency signal and digital baseband signal, concrete, utilize on the one hand the frame of reference clock of 13MHz, the digital baseband signal that application nonuniform sampling mode produces 16 times of GSM sample rates carries out GSM demodulation; Utilize on the other hand 122.88MHz work clock, application filtering extraction mode produces the baseband sampling data of applicable UMTS processing and carries out UMTS demodulation, and use measurement module 6 to process original base band data simultaneously, finally export the measurement result of respective handling mould (UMTS signaling processing module 4 or GSM signaling processing module 5) and complete Presentation Function by control/display module 8 according to current test pattern instruction.
The framework of the clock module 7 in system shown in Figure 2 framework can be as shown in Figure 3, wherein, use the fixing 122.88MHz of the generation work clock of DDS (Direct digital synthesizer, immediate data frequency synthesizer) 71, for modulus/D/A converter module 2 provides reference clock.At FPGA (Field-Programmable Gate Array, be field programmable gate array) in module 72, utilize this reference clock respectively by DCM (digital clock manager, digital dock manager) module 721 produces the FPGA system clock of the 122.88MHz that is applicable to UMTS, produce the reference clock of the 13MHz that is applicable to GSM by PLL (Phase locked loop, phase-locked loop)/DCM module 722.
After radio-frequency module 1 in system shown in Figure 2 framework completes the conversion between analog radio-frequency signal and the analog if signal of communicating by letter with tested UE, modulus/D/A converter module 2, by completing the mutual conversion of analog intermediate frequency and digital intermediate frequency, is then carried out Digital IF Processing by Digital IF Processing module 3.In embodiments of the present invention, realize a series of Digital IF Processing functions by FPGA, comprising sample of signal data being carried out to the processing such as frequency conversion, rate transition, filtering, gain control.
Concrete, in uplink, as shown in Figure 4, clock module 7 produces different system clocks according to 122.88MHz clock signal, analog intermediate frequency signal is converted to digital signal through the analog-to-digital conversion of fixed sampling frequency, in FPGA module, carry out multi-rate digital signal processing, generate the sampled signal of multiple speed, to adapt to the data processing requirement of different mode.The sampled data of the 15.36Msps speed that wherein, use extracted at equal intervals/filtering generates is transferred to UMTS signaling processing module 4 and processes; The sampled data (the about 4.33Msps of data rate) of 16 times of GSM sample rates that use nonuniform sampling produces is transferred to GSM signaling processing module 5 and completes signaling handling process.And for measurement, according to measuring the suitable data type of type Dynamic Selection, complete measurement function and export measurement result by measurement module 6.
In downlink processing, as shown in Figure 5, it is the chip data (if TD-SCDMA speed is 1.28Msps) after spread spectrum that UMTS signaling processing module 4 sends data, and GSM signaling processing module 5 sends 16 haplotype data speed (about 4.333Msps) simultaneously.Tester sends to modulus/D/A converter module 2 to process according to the suitable circuit-switched data of work at present model selection after sample rate conversion, frequency conversion, use 122.88MHz reference clock to complete digital-to-analogue conversion and generate analog if signal, after send to tested UE through radio-frequency module 1 radio frequency signal generation.
In the FPGA of Digital IF Processing module 3, because reference clock is 122.88MHz, can utilize and extract or the directly integral multiple speed sampled data of the applicable UMTS of generation of filtering interpolation.For the sampled data of GSM, in the processing procedure of FPGA, in up processing and downlink processing, adopt different handling processes.
In up processing, as shown in Figure 6 a, first analog if signal is carried out analog-to-digital conversion and is converted to base band obtaining the digital baseband of 61.44Msps, then use the GSM reference work clock of 13MHz to utilize the non-homogeneous sampling principle of taking out to carry out resampling to the digital medium-frequency signal of 61.44Msps, (about 4.333Msps) sampled signal that produces 16 times of GSM character rates, is transferred to GSM signaling processing module 5.
In downlink processing, as shown in Figure 6 b, GSM signaling processing module 5 produces 16 times of speed (about 4.333Msps) data-signal, produce the unequal interval sampled signal of 3.84Msps through the non-homogeneous extraction sample of FPGA, then pass through low pass filter and 4 times of interpolation low pass filters, obtain the equal interval sampling data of 15.36Msps data rate, by the baseband digital data that is reverted to 30.72Msps speed by half band filter, obtain analog intermediate frequency data through digital-to-analogue conversion and send to radio-frequency module 1.
Wherein, in the digital signal processing device of FPGA, the implementation of non-uniform sampling part as shown in Figure 7.Non-uniform sampling relates to two clock zones, latch 13MHz input signal detect its rising edge under 122.88MHz clock.The raw sample data of 61.44Msps deposits two-stage delay line in successively with 122.88MHz work clock simultaneously, in order to increase the Spurious Free Dynamic Range (SFDR) of system, then is selected the multiplexer output data of controlling by PN code.The last 13Msps data sample that output was extracted again under the control of 13MHz reference clock signal.
Can find out by above flow process, the embodiment of the present invention adopts the parallel processing of many signaling processing modules in tester, mode of operation switching in fact only need to be chosen suitable data according to switching command and process in the operating signaling processing module of difference and test module, avoid conventional method in handoff procedure, to need to restart and load the problem of signaling handling procedure, improve system effectiveness, when having accelerated switch speed, reduce the risk that flow process is made mistakes, ensured the basic service continuity in multimode system test.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, and the mode that certainly also can add essential software by hardware realizes.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of hardware product, and this hardware product can be the equipment such as mobile phone terminal tester, or VSA.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (16)
1. a multi-mode mobile terminal test equipment, is characterized in that, comprising: radio-frequency module, D/A converter module, Digital IF Processing module and measurement module, and the signaling processing module of at least two different communication modes, wherein:
Radio-frequency module, be converted to analog if signal for the radiofrequency signal of on up direction, tested multi-module mobile terminal being sent and export to D/A converter module, on down direction, the analog if signal of analog-to-digital conversion module output is converted to radiofrequency signal and sends to tested multi-module mobile terminal;
D/A converter module, export to Digital IF Processing module for analog if signal being converted to digital medium-frequency signal on up direction, on down direction, the digital medium-frequency signal of Digital IF Processing module output is converted to analog if signal and exports to radio-frequency module;
Digital IF Processing module, at up direction, the digital medium-frequency signal of logarithmic mode modular converter output is processed, and obtains the baseband digital signal of the speed that different communication modes is corresponding, and exports to respectively corresponding signaling processing module; On down direction, the signal of signaling processing module output corresponding to current communication pattern is carried out exporting to D/A converter module after Digital IF Processing;
Signaling processing module, for the signal of Digital IF Processing module output being carried out to up channel demodulation and protocol processes on up direction, and according to communication pattern switching command, in the time that destinations traffic pattern is communication pattern corresponding to this module, the down channel modulation signal after this resume module is exported to Digital IF Processing module;
Measurement module, according to the upward signal of Digital IF Processing module output, by given measurement type, carries out upward signal measurement.
2. multi-mode mobile terminal test equipment as claimed in claim 1, is characterized in that, also comprises clock module;
Described clock module, for generating the reference clock signal of first frequency reference clock signal and second frequency, and first frequency reference clock signal is exported to D/A converter module, first frequency reference clock signal and second frequency reference clock signal are exported to Digital IF Processing module; Wherein, first frequency is higher than second frequency;
Described D/A converter module specifically for, carry out modulus or digital-to-analogue conversion according to first frequency reference clock signal;
Described Digital IF Processing module specifically for, according to first frequency reference clock signal, the baseband digital signal that adopts equidistantly sampling to generate the speed that the first communication pattern is corresponding is also exported to the first signaling processing module; According to second frequency reference clock signal, adopt nonuniform sampling generate the baseband digital signal of speed corresponding to second communication pattern and export to the second signaling processing module.
3. multi-mode mobile terminal test equipment as claimed in claim 2, it is characterized in that, described first frequency is 122.88MHz, described second frequency is 13MHz, described the first signaling processing module is universal mobile telecommunications system UMTS signaling processing module, and described the second signaling processing module is global system for mobile telecommunications GSM signaling processing module;
Described Digital IF Processing module specifically for, on up direction, adopt extracted at equal intervals filtering to obtain being applicable to the baseband sampling signal of UMTS pattern speed and exporting to UMTS signaling processing module according to 122.88MHz reference clock signal to digital medium-frequency signal; According to 13MHz reference clock signal, adopt non-homogeneous extraction sample obtain the baseband sampling signal of 16 times of GSM pattern speed and export to GSM signaling processing module to digital medium-frequency signal.
4. multi-mode mobile terminal test equipment as claimed in claim 3, it is characterized in that, described Digital IF Processing module specifically for, the digital medium-frequency signal of D/A converter module output is converted to the digital baseband signal of 61.44Msps, according to 13MHz reference clock signal, utilize non-uniform sampling to carry out resampling to the digital baseband signal of 61.44Msps, obtain the sampled signal of 16 times of GSM character rates, and output it to GSM signaling processing module.
5. multi-mode mobile terminal test equipment as claimed in claim 2, it is characterized in that, described first frequency is 122.88MHz, and described second frequency is 13MHz, described the first signaling processing module is UMTS signaling processing module, and described the second signaling processing module is GSM signaling processing module;
Described Digital IF Processing module specifically for, on down direction, chip data-signal after the spread spectrum that reception UMTS signaling processing module sends, receive the data-signal of 16 speeds of GSM signaling processing module transmission, in the time that current communication pattern is UMTS pattern, select the data-signal of UMTS signaling processing module output to carry out exporting to analog-to-digital conversion module after Digital IF Processing, in the time that current communication pattern is GSM pattern, select the data-signal of GSM signaling processing module output to carry out exporting to analog-to-digital conversion module after Digital IF Processing.
6. multi-mode mobile terminal test equipment as claimed in claim 5, it is characterized in that, described Digital IF Processing module specifically for, in the time that current communication pattern is GSM pattern, the data-signal of 16 times of speed to the output of GSM signaling processing module, carry out non-homogeneous extraction sample and obtain the unequal interval sampled signal of 3.84Msps, obtain the equal interval sampling data of 15.36Msps data rate through low pass filter and 4 times of interpolation low pass filters, revert to the baseband digital signal of 30.72Msps speed via half band filter, and this baseband digital signal is exported to analog-to-digital conversion module.
7. multi-mode mobile terminal test equipment as claimed in claim 2, is characterized in that, described Digital IF Processing module specifically for, in the time carrying out non-uniform sampling, latch 13MHz input signal detect its rising edge under 122.88MHz clock; Deposit successively the raw sample data of 61.44Msps in two-stage delay line with 122.88MHz work clock, select the multiplexer of controlling to export data, the 13Msps data sample that output was extracted again under the control of 13MHz reference clock signal by PN code.
8. multi-mode mobile terminal test equipment as claimed in claim 2, is characterized in that, described first frequency is 122.88MHz, and described second frequency is 13MHz;
Described clock module comprises: immediate data frequency synthesizer DDS and FPGA, and described FPGA comprises digital dock manager DCM and phase-locked loop pll/DCM, wherein:
Immediate data frequency synthesizer DDS, for generating 122.88MHz clock signal, and exports to respectively digital dock manager DCM and phase-locked loop pll/DCM;
Digital dock manager DCM, for generating the 122.88MHz reference clock signal that is applicable to UMTS pattern according to 122.88MHz clock signal;
Phase-locked loop pll/DCM, for generating the 13MHz reference clock signal that is applicable to GSM pattern according to 122.88MHz clock signal.
9. a multi-module mobile terminal method of testing of utilizing multi-mode mobile terminal test equipment as claimed in claim 1 to realize, is characterized in that, the method comprises:
Radio-frequency module receives the radiofrequency signal that tested multi-module mobile terminal sends, and is converted into analog if signal and exports to D/A converter module;
D/A converter module is converted to digital medium-frequency signal by analog if signal and exports to Digital IF Processing module;
The digital medium-frequency signal of Digital IF Processing module logarithmic mode modular converter output is processed, obtain the baseband digital signal of the speed that different communication modes is corresponding, and export to respectively corresponding signaling processing module, and export to measurement module, so that measurement module is by given measurement type, carry out upward signal measurement;
Signaling processing module carries out up channel demodulation and protocol processes to the signal of Digital IF Processing module output, and according to communication pattern switching command, in the time that destinations traffic pattern is communication pattern corresponding to this module, the down channel modulation signal after this resume module is exported to Digital IF Processing module;
Digital IF Processing module carries out exporting to D/A converter module after Digital IF Processing to the signal of signaling processing module output corresponding to current communication pattern;
D/A converter module is converted to analog if signal by the digital medium-frequency signal of Digital IF Processing module output and exports to radio-frequency module;
Radio-frequency module is converted to radiofrequency signal by the analog if signal of D/A converter module output and sends to tested multi-module mobile terminal.
10. method as claimed in claim 9, it is characterized in that, described multi-mode mobile terminal test equipment also comprises clock module, the method also comprises: described clock module generates the reference clock signal of first frequency reference clock signal and second frequency, and first frequency reference clock signal is exported to D/A converter module, first frequency reference clock signal and second frequency reference clock signal are exported to Digital IF Processing module; Wherein, first frequency is higher than second frequency;
Described D/A converter module is carried out modulus or digital-to-analogue conversion according to first frequency reference clock signal;
Described Digital IF Processing module, according to first frequency reference clock signal, adopts equidistantly sampling to generate the baseband digital signal of the speed that the first communication pattern is corresponding and export to the first signaling processing module; According to second frequency reference clock signal, adopt nonuniform sampling generate the baseband digital signal of speed corresponding to second communication pattern and export to the second signaling processing module.
11. methods as claimed in claim 10, it is characterized in that, described first frequency is 122.88MHz, described second frequency is 13MHz, described the first signaling processing module is universal mobile telecommunications system UMTS signaling processing module, and described the second signaling processing module is global system for mobile telecommunications GSM signaling processing module;
Described Digital IF Processing module, on up direction, adopts extracted at equal intervals filtering to obtain being applicable to the baseband sampling signal of UMTS pattern speed and exporting to UMTS signaling processing module according to 122.88MHz reference clock signal to digital medium-frequency signal; According to 13MHz reference clock signal, adopt nonuniform sampling obtain the baseband sampling signal of 16 times of GSM pattern speed and export to GSM signaling processing module to digital medium-frequency signal.
12. methods as claimed in claim 11, it is characterized in that, described Digital IF Processing module is according to 122.88MHz reference clock signal, the digital medium-frequency signal of D/A converter module output is converted to the digital baseband signal of 61.44Msps, according to 13MHz reference clock signal, utilize non-uniform sampling to carry out resampling to the digital baseband signal of 61.44Msps, obtain the sampled signal of 16 times of GSM character rates, and output it to GSM signaling processing module.
13. methods as claimed in claim 10, is characterized in that, described first frequency is 122.88MHz, and described second frequency is 13MHz, and described the first signaling processing module is UMTS signaling processing module, and described the second signaling processing module is GSM signaling processing module;
Described Digital IF Processing module is on down direction, chip data-signal after the spread spectrum that reception UMTS signaling processing module sends, receive the data-signal of 16 speeds of GSM signaling processing module transmission, in the time that current communication pattern is UMTS pattern, select the data-signal of UMTS signaling processing module output to carry out exporting to analog-to-digital conversion module after Digital IF Processing, in the time that current communication pattern is GSM pattern, select the data-signal of GSM signaling processing module output to carry out exporting to analog-to-digital conversion module after Digital IF Processing.
14. methods as claimed in claim 13, it is characterized in that, described Digital IF Processing module is in the time that current communication pattern is GSM pattern, the data-signal of 16 times of speed to the output of GSM signaling processing module, carry out non-homogeneous extraction sample and obtain the unequal interval sampled signal of 3.84Msps, obtain the equal interval sampling data of 15.36Msps data rate through low pass filter and 4 times of interpolation low pass filters, revert to the baseband digital signal of 30.72Msps speed via half band filter, and this baseband digital signal is exported to analog-to-digital conversion module.
15. methods as claimed in claim 10, is characterized in that, described Digital IF Processing module in the time carrying out non-uniform sampling, latch 13MHz input signal detect its rising edge under 122.88MHz clock; Deposit successively the raw sample data of 61.44Msps in two-stage delay line with 122.88MHz work clock, select the multiplexer of controlling to export data, the 13Msps data sample that output was extracted again under the control of 13MHz reference clock signal by PN code.
16. methods as claimed in claim 10, is characterized in that, described first frequency is 122.88MHz, and described second frequency is 13MHz;
Described clock module comprises: immediate data frequency synthesizer DDS and FPGA, and described FPGA comprises digital dock manager DCM and phase-locked loop pll/DCM, wherein:
Immediate data frequency synthesizer DDS generates 122.88MHz clock signal, and exports to respectively digital dock manager DCM and phase-locked loop pll/DCM;
Digital dock manager DCM generates the 122.88MHz reference clock signal that is applicable to UMTS pattern according to 122.88MHz clock signal;
Phase-locked loop pll/DCM generates the 13MHz reference clock signal that is applicable to GSM pattern according to 122.88MHz clock signal.
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| CN107682076A (en) * | 2017-10-09 | 2018-02-09 | 武汉虹信通信技术有限责任公司 | A kind of test device for improving multi-standard multi-path-apparatus testing efficiency |
| EP3737007B8 (en) | 2019-05-06 | 2023-11-15 | Rohde & Schwarz GmbH & Co. KG | Mobile radio testing device and method for protocol testing |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1317803B1 (en) * | 2000-09-14 | 2004-11-24 | Infineon Technologies AG | Method for system-independent digital evaluation of mobile communication reception signals of various mobile radio standards |
| CN101217719A (en) * | 2008-01-16 | 2008-07-09 | 中兴通讯股份有限公司 | A realization method of receiver applied in dual-mode base station |
| CN202565471U (en) * | 2011-11-28 | 2012-11-28 | 上海创远仪器技术股份有限公司 | Multi-mode mobile terminal test device |
-
2011
- 2011-11-28 CN CN201110384284.5A patent/CN102421133B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1317803B1 (en) * | 2000-09-14 | 2004-11-24 | Infineon Technologies AG | Method for system-independent digital evaluation of mobile communication reception signals of various mobile radio standards |
| CN101217719A (en) * | 2008-01-16 | 2008-07-09 | 中兴通讯股份有限公司 | A realization method of receiver applied in dual-mode base station |
| CN202565471U (en) * | 2011-11-28 | 2012-11-28 | 上海创远仪器技术股份有限公司 | Multi-mode mobile terminal test device |
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