CN110224881A - Test macro - Google Patents
Test macro Download PDFInfo
- Publication number
- CN110224881A CN110224881A CN201811517755.3A CN201811517755A CN110224881A CN 110224881 A CN110224881 A CN 110224881A CN 201811517755 A CN201811517755 A CN 201811517755A CN 110224881 A CN110224881 A CN 110224881A
- Authority
- CN
- China
- Prior art keywords
- current divider
- signal
- test
- spectrum analyzer
- power
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 199
- 238000001228 spectrum Methods 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 11
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010616 electrical installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
A kind of test macro includes spectrum analyzer, Cable Modem Terminal System, the first current divider and the second current divider.The first downlink signal that first current divider exports Cable Modem Terminal System splits into two second downlink signals, and it is transmitted separately to test system and spectrum analyzer, so that spectrum analyzer according to obtain institute received second downlink signal reference reception power, with test system received second downlink signal practical reception power compared with.The first uplink signal that second current divider exports test system splits into two second uplink signals, and it is transmitted separately to spectrum analyzer and Cable Modem Terminal System, so that spectrum analyzer according to obtain received second uplink signal actual transmission power, compared with the reference transmission power for the first uplink signal that test system exports.
Description
Technical field
Present disclosure is related to a kind of test macro, in particular to a kind of for testing the test macro of modem.
Background technique
To make the yield and quality that goes out of modem be rigid in checking up, modem all has to pass through before carrying out volume production to be recognized
Demonstrate,prove the certification of unit, wherein hardware-related more important authentication item include the reception power of modem, transimission power,
The test of anti-interference ability and output signal.
The test practice of the authentication item of known modems is that have different tests according to different authentication items
Framework, if therefore tester to be tested respectively for multiple authentication items of modem, must waste time to
And manpower establishes multiple test structures；Further, since the same modem be once only capable of for authentication item into
Row test, and can not be tested simultaneously for multiple authentication items, therefore to be tested for multiple authentication items, then
Also time and manpower are quite expended；Furthermore since modem is when different test structures are tested, modem with
Frequent " plug " movement, and then the service life of lowering apparatus connector are had between its instrument connected.
Summary of the invention
In view of the above subject, the purpose of the present invention is providing a kind of test macro, to be able to solve known modems
The test practice of authentication item the problem of expending time and manpower and lowering apparatus connector service life.
One embodiment of present disclosure discloses a kind of test macro, to test reception and the transmission function of test system
Rate.Test macro includes spectrum analyzer, Cable Modem Terminal System (cable modem termination
System, CMTS), the first current divider and the second current divider.Cable Modem Terminal System is to export the first downlink
Signal.First current divider couples test system, spectrum analyzer and Cable Modem Terminal System, and to will be under first
Row signal splits into identical two the second downlink signals of power, and two the second downlink signals are transmitted separately to test system
And spectrum analyzer, so as to make spectrum analyzer received second downlink signal reference receive power, with test system institute
The practical reception power of received second downlink signal compares, and obtains the first test result.Second current divider couples dress to be measured
It sets, spectrum analyzer and Cable Modem Terminal System, and the first uplink signal to be exported test system point
Stream is identical two the second uplink signals of power, and two the second uplink signals are transmitted separately to spectrum analyzer and cable
Modem terminal system, so as to make spectrum analyzer received second uplink signal actual transmission power, and it is to be measured
The reference transmission power for the first uplink signal that device is exported compares, and obtains the second test result.
One embodiment of present disclosure discloses a kind of test macro, to test reception and the transmission function of test system
Rate.Test macro include spectrum analyzer, Cable Modem Terminal System, attenuator, amplifier, the first current divider and
Second current divider.Cable Modem Terminal System is to export the first downlink signal.Attenuator coupling cables modulation /demodulation
Device terminal system, the power to the first downlink signal of decaying.Amplifier couple attenuator, to by power through decaying first
The power amplification of downlink signal.First current divider couples spectrum analyzer and amplifier, and will pass through attenuator and amplification
First downlink signal of device splits into identical two the second downlink signals of power, and two the second downlink signals are transmitted respectively
To test system and spectrum analyzer, so as to make spectrum analyzer the reference of received second downlink signal receive power, with
Test system the practical reception power of received second downlink signal compare, and obtain the first test result.Second current divider
Spectrum analyzer and attenuator are coupled, and the first uplink signal to be exported test system splits into power identical two
A second uplink signal, and two the second uplink signals are transmitted separately to spectrum analyzer and attenuator, so as to making spectrum analysis
Instrument received second uplink signal actual transmission power, the reference transmission of the first uplink signal exported with test system
Power compares, and obtains the second test result.
Based on above-mentioned technological means, using test macro described in present disclosure can reception power to test system,
Transimission power and output signal are tested, and allow tester only to need the test macro for utilizing present disclosure that can be directed to multiple
Authentication item is tested, and establishes different test structures for different authentication items without expending time and manpower, into
And solve the missing of " the expending time and manpower " of the existing test practice with " service life of lowering apparatus connector ".
Detailed description of the invention
Fig. 1 is the configuration diagram of the test macro according to shown in an embodiment of present disclosure and test system；
Fig. 2 is the configuration diagram of the test macro according to shown in another embodiment of present disclosure and test system；
Fig. 3 A is the schematic diagram of reception power of the test macro for testing test system according to Fig.2,；
Fig. 3 B is the schematic diagram of transimission power of the test macro for testing test system according to Fig.2,；
Fig. 3 C is the schematic diagram of anti-interference ability of the test macro for testing test system according to Fig.2,；
Fig. 3 D is the signal of first output signal of the test macro for testing test system output according to Fig.2,
Figure；
Fig. 4 A is the spectrogram of the first output signal shown in Fig. 3 D；
Fig. 4 B is the spectrogram of the first frequency band signals shown in Fig. 3 D；
Fig. 4 C is the spectrogram of the second frequency band signals shown in Fig. 3 D；
Fig. 4 D is the spectrogram of the second output signal shown in Fig. 3 D.
Specific embodiment
It is hereafter to elaborate for embodiment cooperation attached drawing, to more fully understand embodiment of the present disclosure, but is mentioned
The embodiment of confession is not the range covered to limit the disclosure, and the description of structure operation is non-to limit the suitable of its execution
Sequence, any structure reconfigured by element, the produced device with impartial technical effect, is all the model that the disclosure is covered
It encloses.
Fig. 1 is please referred to, is test macro 100 and test system DUT according to shown in an embodiment of present disclosure
Configuration diagram.
Test macro 100 includes spectrum analyzer 110, Cable Modem Terminal System (cable modem
Termination system, CMTS) the 120, first current divider SP1 and the second current divider SP2.
The output end OT of Cable Modem Terminal System 120 is to export the first downlink signal DS1.In an embodiment
In, the frequency band of the first downlink signal DS1 can be 5-42 (Mhz).
First current divider SP1 is coupled to the output end OT of spectrum analyzer 110 Yu Cable Modem Terminal System 120
Between, and the first downlink signal DS1 is split into the identical two second downlink signal DS2 of power, and by two second downlinks
Signal DS2 is transmitted separately to test system DUT and spectrum analyzer 110, so as to making under 110 institute received second of spectrum analyzer
The reference of row signal DS2 receives power, with test system DUT received second downlink signal DS2 practical reception power ratio
Compared with, and the first test result is obtained, wherein the test result for the reception power that the first test result is test system DUT.
In an embodiment, test system DUT can be modem, and but not limited to this.
Second current divider SP2 couples the input terminal of spectrum analyzer 110 and Cable Modem Terminal System 120
IT, and the first uplink signal US1 to be exported test system DUT splits into identical two second uplink signal of power
US2, and two second uplink signal US2 are transmitted separately to spectrum analyzer 110 and Cable Modem Terminal System 120
Input terminal IT, so as to make spectrum analyzer 110 received second uplink signal US2 actual transmission power, with test system
The reference transmission power for the first uplink signal US1 that DUT is exported compares, and obtains the second test result, wherein the second test
It as a result is the test result of the transimission power of test system DUT.In an embodiment, the frequency band of the first uplink signal DS1 can be
54-1218(Mhz)。
Whereby, test macro 100 can be by comparing with reference to receiving, power receives power with reality and comparison reference is transmitted
Power and actual transmission power, so that the reception power of test system DUT and the test result of transimission power are generated.Namely
It says, under the framework of test macro 100, can be tested for the reception power and transimission power of test system DUT.
It again referring to figure 2., is test macro 200 and test system according to shown in another embodiment of present disclosure
The configuration diagram of DUT.
Test macro 200 shown in Fig. 2 is roughly the same with test macro 100 shown in FIG. 1, such as the test macro of Fig. 2
200 spectrum analyzer 110, Cable Modem Terminal System 120, the first current divider SP1 and the second current divider SP2, therefore
It does not repeat separately.
It will be described below at difference of the test macro 200 shown in Fig. 2 compared to test macro 100 shown in FIG. 1.
In an embodiment, test macro 200 includes also power regulator 130, is coupled to cable modem termination
System 120, the first current divider SP1 and the second current divider SP2.
Further, power regulator 130 also may include attenuator ATT and the first amplifier AMP, attenuator ATT coupling
Cable Modem Terminal System 120, the first amplifier AMP are coupled to attenuator ATT and the first current divider SP1.
For carefully, attenuator ATT has the first frequency range output end FO1, the second frequency range input terminal FI2, the first frequency range defeated
Enter to hold the second frequency range input terminal FI2 and the first frequency range output end FO1 of FI1 and the second frequency range output end FO2, attenuator ATT points
The first frequency range input terminal of the output end OT and input terminal IT of other coupling cables modem terminal system 120, attenuator ATT
FI1 coupling the second current divider SP2, the first amplifier AMP be coupled to attenuator ATT the second frequency range output end FO2 and first point
It flows between device SP1.
It should be noted that the first frequency range output end FO1 of attenuator ATT, the second frequency range input terminal FI2, the first frequency range are defeated
Entering to hold the name of FI1 and the second frequency range output end FO2 is to use for convenience of description, is not used to limit attenuator ATT and respectively hold
The directionality of point.For example, the first frequency range output end FO1 of attenuator ATT also can be used as input terminal or attenuator ATT
The second frequency range input terminal FI2 also can be used as output end.
In an embodiment, test macro 200 also includes noise generating device 140 and third current divider SP3, wherein third
Current divider SP3 is coupled to test system DUT, the first current divider SP1 and noise generating device 140.
Further, noise generating device 140 also may include the first noise generator 141, the second noise generator 142 and
4th current divider SP4, wherein the first noise generator 141 and the second noise generator 142 the 4th current divider SP4 of coupling, and the
Four current divider SP4 couple third current divider SP3.
In an embodiment, test macro 200 also includes first duplexer DP1, the second amplifier AMP and the second duplexer
DP2。
First duplexer DP1 has input terminal IT, the first frequency range output end FO1 and the second frequency range output end FO2, wherein the
The input terminal IT of one duplexer DP1 couples test system DUT by coupler CP.
The second frequency range output end FO2 of one end coupling first duplexer DP1 of second amplifier AMP.
Second duplexer DP2 has the first frequency range input terminal FI1, the second frequency range input terminal FI2 and output end OT, wherein the
The first frequency range output end FO1 of the first frequency range input terminal FI1 coupling first duplexer DP1 of two duplexer DP2, the second duplexer
The second frequency range input terminal FI2 of DP2 couples the other end of the second amplifier AMP, and the output end OT of the second duplexer DP2 is by cutting
Change switch SW coupling spectrum analyzer 110.
It should be noted that the input terminal IT of first duplexer DP1, the first frequency range output end FO1 and the second frequency range output end
The name and the name of the first frequency range input terminal FI1, the second frequency range input terminal FI2 and output end OT of the second duplexer DP2 of FO2
All it is to use for convenience of description, not is used to limit the directionality of first duplexer DP1 and second each endpoint of duplexer DP2,
It further illustrates as described in aforementioned attenuator ATT, therefore does not repeat separately.
In an embodiment, test macro 200 also includes third duplexer DP3 and the 4th duplexer DP4.
Third duplexer DP3 has the first frequency range input terminal FI1, the second frequency range input terminal FI2 and output end OT, wherein the
The first frequency range input terminal FI1 of three duplexer DP3 couples the second current divider SP2, the second frequency range input terminal of third duplexer DP3
FI2 couples the first current divider SP1, and the output end OT of third duplexer DP3 couples spectrum analyzer 110 by switching switch SW.
4th duplexer DP4 has input terminal IT, the first frequency range output end FO1 and the second frequency range output end FO2, wherein the
The input terminal IT of four duplexer DP4 couples third current divider SP3, the first frequency range output end FO1 coupling of the 4th duplexer DP4 the
The second frequency range output end FO2 of two current divider SP2, the 4th duplexer DP4 couples the first current divider SP1.
It should be noted that the first frequency range input terminal FI1, the second frequency range input terminal FI2 and the output end of third duplexer DP3
The name and the name of input terminal IT, the first frequency range output end FO1 and the second frequency range output end FO2 of the 4th duplexer DP4 of OT
All it is to use for convenience of description, not is used to limit the directionality of third duplexer DP3 and the 4th each endpoint of duplexer DP4,
It further illustrates as described in aforementioned attenuator ATT, therefore does not repeat separately.
In addition, " L " shown in Fig. 2 and " H " respectively indicate " the first frequency range " and " the second frequency range " passable endpoint, " L "
And " H " is merely illustrative, is not intended to limit.
A referring to figure 3. again, for the reception function for being used to test test system DUT according to test macro 200 shown in Fig. 2
The schematic diagram of rate.
Firstly, output the first downlink signal DS1, the first downlink signal DS1 process of Cable Modem Terminal System 120
The first current divider SP1 is transmitted to after attenuator ATT and the first amplifier AMP；Then, the first current divider SP1 will pass through attenuator
The first downlink signal DS1 of ATT and the first amplifier AMP splits into the identical two second downlink signal DS2 of power.
One of second downlink signal DS2 is along dotted arrow direction after third duplexer DP3 and switching switch SW
It is transmitted to spectrum analyzer 110, spectrum analyzer 110 can be obtained accordingly corresponding to a received second downlink signal DS2 whereby
Reference receive power.
The another one of second downlink signal DS2 passes through the 4th duplexer DP4, third current divider along solid arrow direction head
It is transmitted to test system DUT after SP3 and coupler CP, test system DUT can be obtained corresponding to received second downlink whereby
The practical reception power of signal DS2.
It, can be again by analyzing master after the reference reception power of corresponding test system DUT and practical reception power are obtained
Machine (not shown) carrys out comparison reference and receives power and the practical difference received between power, and then generates the first test result.It lifts
For example, when reference, which receives, differs 3dB or more between power and practical reception power, then it represents that the reception of test system DUT
Power is abnormal, therefore the first test result is " receiving power to be abnormal "；On the contrary, when with reference to reception power and reality
When receiving difference 3dB or less between power, then it represents that the reception power of test system DUT is still fallen in normal range (NR), therefore the
One test result is " it is normal to receive power ".
B referring to figure 3. again, for the transmission function for being used to test test system DUT according to test macro 200 shown in Fig. 2
The schematic diagram of rate.
Firstly, test system DUT exports the first uplink signal US1, wherein the power of the first uplink signal US1 is dress to be measured
The reference transmission power that DUT should ideally be transmitted is set, and reference transmission power can be obtained from test system DUT.Then, on first
Row signal US1 is transmitted to the second current divider SP2 after third current divider SP3 and the 4th duplexer DP4；Also, second shunts
First uplink signal US1 is split into the identical two second uplink signal US2 of power by device SP2.
For one of second uplink signal US2 along solid arrow direction after attenuator ATT, attenuator ATT will be corresponding
In received second uplink signal US2 power attenuation be 0dB after be transmitted to Cable Modem Terminal System 120, with
Meet related specifications.
The another one of second uplink signal US2 is along dotted arrow direction by third duplexer DP3 and switching switch SW
After be transmitted to spectrum analyzer 110, spectrum analyzer 110 can be obtained accordingly corresponding to received second uplink signal of institute whereby
The practical reception power of US2.
After the reference transmission power and actual transmission power of corresponding test system DUT are obtained, analysis master can be passed through again
Machine carrys out the difference between comparison reference transimission power and actual transmission power, and then generates the second test result.For example, when
When with reference to differing 2dB or more between reception power and practical reception power, then it represents that the transimission power of test system DUT occurs different
Often, therefore the second test result is " transimission power is abnormal "；On the contrary, when reference transmission power and actual transmission power it
Between differ 2dB or less when, then it represents that the transimission power of test system DUT is still fallen in normal range (NR), therefore the second test result
For " transimission power is normal ".
C referring to figure 3. again, for according to test macro 200 shown in Fig. 2 for testing the anti-interference of test system DUT
The schematic diagram of ability.
Firstly, output the first downlink signal DS1, the first downlink signal DS1 process of Cable Modem Terminal System 120
The first current divider SP1 is transmitted to after attenuator ATT and amplifier AMP；Then, the first current divider SP1 will by attenuator ATT and
The first downlink signal DS1 of amplifier AMP splits into the identical two second downlink signal DS2 of power.
One of second downlink signal DS2 is transferred to third by the 4th duplexer DP4 along solid arrow direction
Current divider SP3.
First noise generator 141 generates the first noise signal NS1, and the second noise generator 142 generates the second noise
Signal NS2.Then, the first noise signal NS1 and the second noise signal NS2 are merged into noise signal NS by the 4th current divider SP4,
And noise signal NS is transmitted to third current divider SP3.In some embodiments, it the first noise generator 141 and/or second makes an uproar
Sound generator 142 may be, for example, random noise generator, digital noise generator, multinomial generator, Gaussian digital noise production
It gives birth to device or other can be applied to the noise generator of the test macro of present disclosure.
Third current divider SP3 will correspond to after institute received second downlink signal DS2 and noise signal NS merges by coupling
Clutch CP and be transmitted to test system DUT.
After test system DUT receives the second downlink signal DS2 and noise signal NS, it can be analyzed by analysis host
The case where test system DUT receives the second downlink signal, and then generate third test result.Specifically, work as test system
DUT by noise signal NS influence is unable to that the second downlink signal DS2 is correctly received, so that test system DUT can not be with
120 line of Cable Modem Terminal System or test system DUT can connect with Cable Modem Terminal System 120
Line but package can not be properly switched, then it represents that the anti-interference ability of test system DUT is bad, therefore third test result is
" anti-interference ability is bad "；On the contrary, when test system DUT is not influenced by noise signal NS and can be correctly received second
Downlink signal DS2 so that test system DUT can with 120 line of Cable Modem Terminal System and can properly switch
Package, then it represents that the anti-interference ability of test system DUT is good, therefore third test result is " anti-interference ability is good ".
D, and reference Fig. 4 A to Fig. 4 D together referring to figure 3. again.Fig. 3 D is that test macro 200 according to Fig.2, is used for
Test the schematic diagram of the first output signal OS1 of test system DUT output.Fig. 4 A to Fig. 4 D is first defeated shown in Fig. 3 D respectively
The spectrogram of signal OS1, the first frequency band signals FS1, the second frequency band signals FS2 and the second output signal OS2 out.
Firstly, test system DUT exports the first output signal OS1, wherein the first output signal OS1 has the first frequency range F1
And the second frequency range F2, as shown in Figure 4 A.First duplexer DP1 receives the first output signal OS1, and by the first output signal OS1
Output the first frequency band signals FS1 and the second frequency band signals FS2 is corresponded to according to the first frequency range F1 and the second frequency range F2, wherein first
Only there is frequency band signals FS1 the first frequency range F1, the second frequency band signals FS2 only to have the second frequency range F2, as shown in Fig. 4 B and Fig. 4 C.
Then, the first frequency band signals FS1 is transmitted to the second duplexer DP2 and the second frequency band signals FS2 and puts by second
The second duplexer DP2 is transmitted to after big device AMP.It should be noted that be can be by the second frequency range for the purpose of the second amplifier AMP
The power amplification of signal FS2, the power to avoid the second frequency band signals FS2 is too small and can not be measured to.
Second duplexer DP2 merges the first frequency band signals FS1 and enlarged second frequency band signals FS2 of power to generate the
Two output signal OS2, as shown in Figure 4 D, then the second output signal OS2 is transmitted to spectrum analyzer after switching switch SW
110。
It, can be by analyzing the second output signal of host analysis after spectrum analyzer 110 receives the second output signal OS2
Whether the waveform of the first frequency range F1 and the second frequency range F2 of OS2 there is exception, and then generate the 4th test result.
For example, as shown in Figure 4 D, (do not show when the waveform of the first frequency range F1 of the second output signal OS2 generates train of dress
When out), or when the second frequency range F2 of the second output signal OS2 generates harmonic wave (not shown), then it represents that as test system DUT
When exporting the first output signal OS1, the first output signal OS1 will influence whether arround other electrical installations operation, therefore
Four test results are " the first output signal OS1 is abnormal "；On the contrary, the waveform of the first frequency range F1 as the second output signal OS2
When not generating skirt and the second frequency range F2 without harmonic wave, then it represents that when test system DUT exports the first output signal OS1, first
Output signal OS1 do not interfere with arround other electrical installations operation, therefore the 4th test result be " the first output signal
OS1 is normal ".
In addition, switching switch SW shown in Fig. 2 and Fig. 3 A to Fig. 3 D can be used for being cut according to different authentication items
It changes, for example, in reception power, transimission power or the anti-interference ability for testing test system DUT, switching switch SW is only
Allow the transmission of signal between spectrum analyzer 110 and third duplexer DP3；Alternatively, when the output in test test system DUT
When signal, switching switch SW only allows the transmission of signal between spectrum analyzer 110 and the second duplexer DP2.
In conclusion the test macro of present disclosure can be by by spectrum analyzer, cable modem termination system
System, the first current divider, the second current divider, noise generating device, third current divider, first duplexer, amplifier and the second duplex
The elements such as device and can reception power, transimission power, anti-interference ability and output signal to test system test, allow test
Personnel only need to test for multiple authentication items using the test macro of present disclosure, without expend the time and
Manpower establishes different test structures for different authentication items, and then solves " consuming time and the people of the known test practice
The missing of power " and " service life of lowering apparatus connector ".
Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any technical field
Technical staff in common, is not departing from design and scope of the claims of the invention, when can make a little variation and retouching, therefore
Protection scope of the present invention is subject to when view as defined in claim.
Claims (10)
1. a kind of test macro, to test the reception and transimission power of test system, which is characterized in that the test macro packet
Contain:
Spectrum analyzer；
Cable Modem Terminal System, to export the first downlink signal；
First current divider couples the test system, the spectrum analyzer and the Cable Modem Terminal System, and
First downlink signal is split into identical two the second downlink signals of power, and described two second downlinks are believed
Number it is transmitted separately to the test system and the spectrum analyzer, so as to making the spectrum analyzer institute received described second
The reference of downlink signal receives power, with the test system received second downlink signal practical reception power ratio
Compared with, and obtain the first test result；And
Second current divider couples the test system, the spectrum analyzer and the Cable Modem Terminal System, and
The first uplink signal to be exported the test system splits into identical two the second uplink signals of power, and by institute
It states two the second uplink signals and is transmitted separately to the spectrum analyzer and the Cable Modem Terminal System, so as to making
The spectrum analyzer received second uplink signal actual transmission power, the institute exported with the test system
The reference transmission power for stating the first uplink signal compares, and obtains the second test result.
2. test macro according to claim 1, which is characterized in that also include:
Power regulator couples the Cable Modem Terminal System and second current divider, and to adjust from institute
State the power of second uplink signal of the second current divider output.
3. test macro according to claim 1, which is characterized in that also include:
Noise generating device, to generate noise signal；And
Third current divider, couples the test system and first current divider, and to receive the noise signal, and by institute
It states second downlink signal that the first current divider is exported to merge with the noise signal, and is transmitted to the test system,
With received according to the test system second downlink signal the case where and obtain third test result.
4. test macro according to claim 3, which is characterized in that the noise generating device includes:
First noise generator, to generate the first noise signal；
Second noise generator, to generate the second noise signal；And
4th current divider couples first noise generator and second noise generator, and described first to make an uproar
Acoustical signal and second noise signal are merged into the noise signal.
5. test macro according to claim 3, which is characterized in that also include:
First duplexer, to the first output signal exported received from the test system, wherein first output signal
Comprising the first frequency band signals and the second frequency band signals, the first duplexer exports first frequency band signals and described respectively
Two frequency band signals；
Amplifier couples the first duplexer, and the power to amplify second frequency band signals；And
Second duplexer couples the spectrum analyzer, and to merge first frequency band signals and the institute through power amplification
It states the second frequency band signals and outputs signal to the spectrum analyzer to generate second, to obtain the 4th test result.
6. test macro according to claim 1, which is characterized in that also include:
Third duplexer couples first current divider and second current divider, and will come from first current divider
Second downlink signal be transmitted to the spectrum analyzer, and by second uplink from second current divider
Signal is transmitted to the spectrum analyzer；And
4th duplexer couples first current divider and second current divider, and will come from first current divider
Second downlink signal be transmitted to the test system, and first uplink that the test system is exported is believed
Number it is transmitted to second current divider.
7. a kind of test macro, to test the reception and transimission power of test system, which is characterized in that the test macro packet
Contain:
Spectrum analyzer；
Cable Modem Terminal System, to export the first downlink signal；
Attenuator couples the Cable Modem Terminal System, the power to first downlink signal of decaying；
Amplifier couples the attenuator, to the power amplification by power through first downlink signal decayed；
First current divider, couples the spectrum analyzer and the amplifier, and will pass through the attenuator and described put
First downlink signal of big device splits into identical two the second downlink signals of power, and described two second downlinks are believed
Number it is transmitted separately to the test system and the spectrum analyzer, so as to making the spectrum analyzer institute received described second
The reference of downlink signal receives power, with the test system received second downlink signal practical reception power ratio
Compared with, and obtain the first test result；And
Second current divider couples the spectrum analyzer and the attenuator, and to be exported the test system
One uplink signal splits into identical two the second uplink signals of power, and described two second uplink signals are transmitted separately to institute
State spectrum analyzer and the attenuator, so as to make the spectrum analyzer received second uplink signal practical biography
Defeated power compared with the reference transmission power for first uplink signal that the test system is exported, and obtains the second survey
Test result.
8. test macro according to claim 7, which is characterized in that also include:
Noise generating device, to generate noise signal；And
Third current divider, couples the test system and first current divider, and to receive the noise signal, and by institute
It states second downlink signal that the first current divider is exported to merge with the noise signal, and is transmitted to the test system,
The case where to receive corresponding second downlink signal according to the test system and obtain third test result.
9. test macro according to claim 8, which is characterized in that also include:
First duplexer, to the first output signal exported received from the test system, wherein first output signal
Comprising the first frequency band signals and the second frequency band signals, the first duplexer exports first frequency band signals and described respectively
Two frequency band signals；
Amplifier couples the first duplexer, and the power to amplify second frequency band signals；And
Second duplexer couples the spectrum analyzer, and to merge first frequency band signals and the institute through power amplification
It states the second frequency band signals and outputs signal to the spectrum analyzer to generate second, to obtain the 4th test result.
10. test macro according to claim 7, which is characterized in that also include:
Third duplexer couples first current divider and second current divider, and will come from first current divider
Second downlink signal be transmitted to the spectrum analyzer, and by second uplink from second current divider
Signal is transmitted to the spectrum analyzer；And
4th duplexer couples first current divider and second current divider, and will come from first current divider
Second downlink signal be transmitted to the test system, and first uplink that the test system is exported is believed
Number it is transmitted to second current divider.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107106860A TWI645693B (en) | 2018-03-01 | 2018-03-01 | Testing system |
| TW107106860 | 2018-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110224881A true CN110224881A (en) | 2019-09-10 |
| CN110224881B CN110224881B (en) | 2020-11-27 |
Family
ID=65431539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811517755.3A Active CN110224881B (en) | 2018-03-01 | 2018-12-12 | Test system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110224881B (en) |
| TW (1) | TWI645693B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067602A (en) * | 2021-03-18 | 2021-07-02 | 深圳市共进电子股份有限公司 | Method, device, terminal and storage medium for determining calibration parameters |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002237777A (en) * | 2001-02-09 | 2002-08-23 | Matsushita Electric Ind Co Ltd | Base station simulator and transmission power control performance testing method |
| CN1981199A (en) * | 2004-06-16 | 2007-06-13 | 日出电信公司 | QAM signal analysis in a network |
| CN103535085A (en) * | 2011-08-03 | 2014-01-22 | 华为技术有限公司 | Uplink power control method, base station and user equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6662135B1 (en) * | 1998-12-09 | 2003-12-09 | 3Com Corporation | Method and apparatus for reflective mixer testing of a cable modem |
| US7246368B1 (en) * | 2000-01-28 | 2007-07-17 | Cisco Technology, Inc. | Cable plant certification procedure using cable modems |
| US9686594B2 (en) * | 2011-11-11 | 2017-06-20 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Spectrum analysis and plant diagnostic tool for communications systems |
| WO2016018933A1 (en) * | 2014-07-28 | 2016-02-04 | Certusview Technologies, Llc | Ingress mitigation having collocated subscriber service |
-
2018
- 2018-03-01 TW TW107106860A patent/TWI645693B/en active
- 2018-12-12 CN CN201811517755.3A patent/CN110224881B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002237777A (en) * | 2001-02-09 | 2002-08-23 | Matsushita Electric Ind Co Ltd | Base station simulator and transmission power control performance testing method |
| CN1981199A (en) * | 2004-06-16 | 2007-06-13 | 日出电信公司 | QAM signal analysis in a network |
| CN103535085A (en) * | 2011-08-03 | 2014-01-22 | 华为技术有限公司 | Uplink power control method, base station and user equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067602A (en) * | 2021-03-18 | 2021-07-02 | 深圳市共进电子股份有限公司 | Method, device, terminal and storage medium for determining calibration parameters |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110224881B (en) | 2020-11-27 |
| TWI645693B (en) | 2018-12-21 |
| TW201937901A (en) | 2019-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6636048B2 (en) | Method for diagnosing performance problems in cabling | |
| US5570029A (en) | Cable crosstalk measurement system | |
| CN104764973B (en) | Induction type wiring harness tester and detection method | |
| US20110183637A1 (en) | Multi-carrier-based testing | |
| CN110224881A (en) | Test macro | |
| CN108600929A (en) | A kind of multinomial audio frequency parameter automatic test approach and its test system | |
| CN103250403B (en) | For the method tested and test system and AFE (analog front end) | |
| CN109150238A (en) | Wireless audio integrated measurement system and method | |
| JPH0331770A (en) | Loop test equipment and method of loop test | |
| US6385296B1 (en) | System to test a connection in a telephone network | |
| CN110581720B (en) | Testing device, system and testing method for converting G.hn PLC power line into coaxial line | |
| US5883664A (en) | Apparatus and method for testing CATV transmission line | |
| US20150030138A1 (en) | Method and apparatus for detecting and locating loop impairments | |
| US7460840B2 (en) | Method of test characterization of an analog front end receiver in a communication system | |
| JP3324964B2 (en) | Wire communication network ingress noise measurement device | |
| CN107817479B (en) | A kind of test macro and method of high power digital transmitting-receiving subassembly noise coefficient | |
| CN209151172U (en) | The radiofrequency signal test device and structure for having multichannel input and output | |
| CN107888302A (en) | The device of monitoring receiver radio frequency testing | |
| US8934849B2 (en) | System and method for confirming radio frequency (RF) signal connectivity with device under test (DUT) | |
| CN106556755A (en) | A kind of microwave converter input isolation test and system | |
| CN112423195B (en) | Self-checking device and method for audio transmission | |
| CN205608111U (en) | ADSL cable test equipment | |
| Bell et al. | Range to Fault Technology | |
| JP2908436B1 (en) | Coaxial cable buckling failure automatic detection device | |
| CN115684779A (en) | System and method suitable for line protection and verification of new energy station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |