CN100361458C - Method for testing wireless network device - Google Patents
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- CN100361458C CN100361458C CNB2004100841554A CN200410084155A CN100361458C CN 100361458 C CN100361458 C CN 100361458C CN B2004100841554 A CNB2004100841554 A CN B2004100841554A CN 200410084155 A CN200410084155 A CN 200410084155A CN 100361458 C CN100361458 C CN 100361458C
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Abstract
The present invention relates to a method for testing a wireless network device, which is suitable for the wireless network device with application of a wireless network standard. The method comprises the following steps that an electric signal is led into the wireless network device of which the manufacture is completed, and whether the device is burned out is tested; after the previous step is completed, the power of the device is adjusted, and an emitting test is carried out to the device of which the power is adjusted; the power receiving test is carried out after the emitting test is finished, and a transmitting test to the device is carried out after the receiving test is finished.
Description
Technical field
The present invention relates to a kind of method of testing of radio network device, particularly a kind of quality test that is applicable to radio network device makes radio network device produce more efficiently and to make thus.
Background technology
Because computer networking technology is flourish, network is penetrated in people's the habits and customs and idea gradually, for daily life has more increased many facilities.Nowadays, people can be by shopping at network, pay the fees, communication, office or the like, in order to allow information reach carry-onization, form WLAN (wireless local area network) (Wireless Local Area Network by simple access structure, be called for short WLAN), allow people not be subjected to the restriction of cable and can, lightheartedly enjoy a trip to network world whenever and wherever possible.
The WLAN online is to pass through wireless network card by terminal equipment, and combining wireless wideband modulator-demodulator (Access Point is called for short AP) carries out area wireless network and links; If accessing circuit (as: ADSL, special line etc.) by the outside again, AP can enjoy a trip to network world utilization wireless network resource.In addition, WLAN transmission rate height can reach 54Mbps as 802.11g, and WLAN adopts the free medical frequency range of industrial science (Industrial Scientific Medical Band is called for short ISM band), the network covering scope is little, thus integral body build be set to low.
In addition, the wireless network standards of WLAN is formulated by electric electronic engineering association (The Institute ofElectrical and Electronics Engineers is called for short IEEE).After the standard the earliest of proposition IEEE802.11 1Mbps in 1977, until now, nowadays the standard of main flow is IEEE802.11b and IEEE 802.11a haply.Because IEEE 802.11b technology is quite ripe, equipment price is also comparatively cheap, therefore, the specification of IEEE 802.11b is comparatively popular at present.
At present, for the radio network device of guaranteeing each tame manufacturers produce can both have compatible and stability, so radio network device all need meet wireless network standards and could go on the market.In view of this, radio network device all can pass through a series of test that each tame manufacturer makes by oneself, but again through just list marketing sale after heavy the checking on, and each tame manufacturer is that the optimization of guaranteeing its device all can be at the specific method of testing of its device design one, thereby can produce and make radio network device more efficiently.
Summary of the invention
Based on above problem, main purpose of the present invention is to provide a kind of method of testing of radio network device, thereby obtains quality good wireless network equipment efficiently.
The method of testing of radio network device disclosed in this invention, be for making radio network device have fail safe and meeting wireless network standards, for example: IEEE 802.11a, IEEE 802.11b, IEEE 802.11g etc., and every testing process of formulating, in the hope of carrying out the quality test of radio network device more efficiently.Therefore, radio network device can detect one by one according to this method of testing before listing, thereby can effectively shorten the man-hour of device quality determination, to reach the purpose of producing and make radio network device more efficiently.
Therefore, for reaching above-mentioned purpose, the invention provides a kind of method of testing of radio network device, be applicable to the radio network device of employing wireless network standard, comprise the following steps: that a radio network device that will complete feeds a signal of telecommunication, and detect this device and whether burn; Finish previous step rapid after, the power of adjusting device; The device that the power adjustment is finished carries out transmission test; After finishing transmission test, carry out the power interface Acceptance Tests of device; After acceptance test is finished, carry out the transmission test of device again; The step of the power of adjusting device further comprises, writes three above register values in the buffer more than three of this device, and described buffer is used for controlling this device, and described register values is according to the applied wireless network standards decision of device; (j) carry out the test of the frequency response of power output at the described device that writes described register values; (k) measure described frequency response of installing institute's power output and whether reach an error criterion value, if do not reach, then adjust described register values, wherein said error criterion is to work out according to the applied described wireless network standards of described device; And (l) repeating said steps (j) and described step (k), reach described error criterion value until the frequency response of described device institute power output.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the flow chart of explanation one embodiment of the invention;
Fig. 2 is the graph of a relation of the power output frequency response of the general radio network device of explanation;
Fig. 3 is the flow chart of the power regulating method of one embodiment of the invention;
Fig. 4 is the frequency band division schematic diagram of 802.11b specification of the power regulating method of one embodiment of the invention;
Fig. 5 is the flow chart of the transmission test of one embodiment of the invention;
Fig. 6 is the flow chart of the transmission test of another embodiment of the present invention;
Fig. 7 is the signal power of transmitted waveform of 802.11b specification and the graph of a relation of frequency;
Fig. 8 is the device of the acceptance test of one embodiment of the invention.
Wherein, Reference numeral:
110 feed the signal of telecommunication 120 power adjustment
140 acceptance tests of 130 transmission tests
150 transmit test 220 power adjustment
222 write register values 224 tests
Whether 226 outputs meet 228 deposits buffer in
229 adjust register values 320 power adjustment
332 waveform testings of 330 transmission tests
Whether 334 power ratio conformance with standard
The test of 336 occupied bandwidths
Whether 338 occupied bandwidths conformance with standard
420 power adjustment
430 transmission tests
433 Bo Xingceshi ﹠amp; Bandwidth test
All whether 435 power ratio and occupied bandwidth conformance with standard
The A attenuator
The Cable cable
CH1-CH13 channel 1 is to channel 13
The GP standard set-up
The P device
The Y conformance with standard
N does not meet standard
Embodiment
Below enumerate specific embodiment describing content of the present invention in detail, and with icon as aid illustration.
The symbol of mentioning in the explanation is with reference to diagrammatical symbol.
Fig. 1 is the flow chart of one embodiment of the invention.With reference to Fig. 1, at first feed the signal of telecommunication (step 110) on the radio network device that production is finished, observe whether device has the phenomenon of burning in a scheduled time.If device is burnt, represent that then the circuit of this device has flaw to exist, for example: problems such as short circuit, air cooling weldering, this device then need be made or be cast out again this moment; And install when not burning, this device then can carry out next testing procedure.Wherein, this signal of telecommunication can be a fixed voltage or a fixed current.
At this moment, the device of finishing the rapid test of previous step carries out its power output and adjusts (step 120), be according to wireless network standards herein, for example: IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11a+g etc., the power of adjusting device, just, the frequency band of the wireless network standards of using according to the device power output frequency response that comes adjusting device respectively is to obtain a more smooth power output frequency response.
The device that adjustment is finished is proceeded device signal transmission test (step 130), promptly carries out the transmission test (step 130) of device according to wireless network standards, and whether characteristics of signals such as the waveform of the signal of finder emission, bandwidth meet preassigned; If conformance with standard is then carried out next testing procedure; If meet standard and then do not carry out power adjustment (step 120) again, and then carry out transmission test (step 130),, then constantly carry out this circulation and satisfy the criteria up to it and just then carry out next step if still for not.
The device of finishing transmission test then carries out acceptance test (step 140), is according to wireless network standards and the power receiving efficiency of testing apparatus herein.This is to observe this device receiving efficiency whether to meet preassigned; If standard compliant device is then proceeded next testing procedure; If not standard compliant device then need carry out power adjustment (step 120) again, carry out transmission test (step 130) then, carry out acceptance test (step 140) after finishing once more, if still do not meet, then constantly carry out this circulation and satisfy the criteria up to it and just then carry out next step.
After finishing acceptance test, carry out the transmission test (step 150) of device again, this is whether speed for file transmission between finder and another radio network device meets preassigned; If conformance with standard, i.e. all testing processs of finishing device, at this moment, device can be prepared list marketing; If not standard compliant device then need carry out power adjustment (step 120) again, carry out transmission test (step 130) then, then carry out acceptance test (step 140), above-mentioned test is all during conformance with standard, once transmit test (step 150) again, if still do not meet, then constantly carry out this circulation till it is satisfied the criteria.
In addition, can carry out a testing electrical property earlier behind the device of finishing the power adjustment, whether this is to be finder its current drain situation when each transmitting channel (channel), just, normal in order to the electrical characteristic of determining device.At this moment, if the current drain of device meets predetermined standard time, then can proceed the transmission test of next step; If the current drain of device does not meet predetermined standard time, this device then need be readjusted power, and then carries out testing electrical property, if still do not meet, then constantly carries out this and one circulates to satisfy the criteria up to it and just then carry out next step.The standard of this testing electrical property is to work out according to wireless network standards, and the specification/frequency/current consumption limits in the actual test please refer to shown in the table 1.
Table 1
| Specification | Delivery status | Frequency (MHz) | Electric current restriction (mA) |
| 802.11a | Transmit | 5320 | ~800 |
| Receive | 5320 | ~400 | |
| 802.11b | Transmit | 2442 | ~600 |
| Receive | 2442 | ~400 | |
| 802.11g | Transmit | 2442 | ~800 |
| Receive | 2442 | ~400 |
Yet this testing electrical property be except can carrying out earlier after finishing the power adjustment, also can be after transmission test be finished or acceptance test carry out again after finishing.Just, device can carry out testing electrical property again after finishing power adjustment, transmission test or acceptance test.
Wherein, the power adjustment of device comprises that power writes with power test two steps, wherein this device comprises the buffer more than three, main method of adjustment is for writing the register values that may the go wrong power output of testing apparatus again to the buffer earlier, if the output of being surveyed does not meet the action that standard is then finely tuned.
Please refer to Fig. 2, Fig. 2 is general radio network device, at this, for example: devices such as wireless network card, radio wideband modulator-demodulator, in its test, the graph of a relation of frequency and power output frequency response; Ideally, should be a straight line (as shown in Figure 2) through the adjusted power output frequency response of power.Therefore, just according to the frequency band size of each wireless network standards, and the frequency band of each wireless network standards is divided into scope more than three, then, at the action of the value of adjusting one by one of each scope, reach desirable up to output, just will adjust value later and write in the buffer; With reality test, utilize this kind to come to reach in the permissible range of standard output power of the applied specification of device under test to the error that method produced that straight line is made convergence by the point more than three.
With reference to Fig. 3, to clearly demonstrate power regulating method of the present invention (step 220), at first, device is after finishing last testing procedure, write register values more than three in order to the buffer of control device (step 222), afterwards, carry out the test (step 224) of the frequency response of power output for the device that writes the register values more than three, whether the frequency response of measuring power output again reaches an error criterion value (step 226); If meet, then deposit corresponding cache device value in the buffer (step 228); If not, then further adjust register values (step 229), once more this network equipment is carried out testing procedure (step 224), and measure whether conformance with standard (step 226) of its output valve, if still for denying, then constantly carry out this circulation till its output is satisfied the criteria, just will adjust register values later and deposit (step 228) in the buffer in.The frequency and the error criterion value that go up each specification in the power adjustment test of reality are as shown in the table:
Table 2
| Specification | Frequency (MHz) | Error criterion value (dB) |
| 802.11a | 5220 | +/-1.5 |
| 802.11b | 2442 | +/-1.5 |
| 802.11g | 2442 | +/-1.5 |
Wherein, the register values more than three that writes is to determine according to the power output frequency response of not adjusting preceding device.In other words, be divided into scope more than three according to the frequency band of big each specification of young pathbreaker of frequency band of each wireless network standards, thereby obtain the pairing register values of a channel respectively in the scope more than three thus.
The deciding means of register values is described with the device of the wireless network standards that is applied to 802.11b.The signal transmission technology of the applied device of the present invention is spread spectrum (Spread Spectrum) mode, in this, but scope with a channel emission generate 22MHz, therefore, can channel 1, channel 6 and channel 11 become three scopes with the wireless network standards frequency band division of 802.11b, as shown in Figure 4, can find simultaneously thus, its included scope is not only included all frequencies, and because of the overlapping bands between each channel quite little, therefore also be difficult for causing the phenomenon of phase mutual interference to produce, therefore, then with channel 1, in channel 6 and the channel 11 pairing register values writing stations to carry out the test of power output frequency response.Wherein, the mensuration of carrying out frequency response with channel 1, channel 6 and channel 11 pairing power outputs simultaneously.
In addition, with reference to Fig. 5, the transmission test (step 330) of device comprises waveform testing (Mask test) (step 332) and occupied bandwidth test (OBW test) (step 336).Wherein, waveform testing (step 332) is according to the gross power ratio of the signal power of the waveform of wireless network standards determinator emission and signal conformance with standard power ratio (step 334) whether; If meet, then can carry out bandwidth test (step 336); If do not meet then and need carry out power adjustment (step 320) again, after finishing, adjustment carries out a waveform testing (step 332) again, if still do not meet, then constantly carry out this circulation till its transmitted waveform reaches calibration power ratio.And device meets waveform testing (step 332) afterwards, then carries out bandwidth test (step 336), and this bandwidth test (step 336) is a whether conformance with standard (step 338) of transmitted waveform is occupied according to the wireless network standards determinator bandwidth; If meet, then can carry out next testing procedure, i.e. transmission test or testing electrical property; Need not carry out power adjustment (step 320) again if meet then, after finishing, adjustment carries out waveform testing (step 332), carry out a bandwidth test (step 336) when waveform testing is finished again,, then constantly carry out this circulation till its transmitted bandwidth is satisfied the criteria if still do not meet.The calibration power ratio and the standard occupied bandwidth of the output waveform of each specification are as shown in the table in the actual transmission test:
Table 3
| Specification | Frequency (MHz) | Calibration power ratio (dBc) | Standard occupied bandwidth (MHz) |
| 802.11a | 5220 | ~20 | ~17.7 |
| 802.11b | 2442 | ~30 | ~17.7 |
| 802.11g | 2442 | ~20 | ~22 |
In addition, also can test by advanced uplink bandwidth, carry out waveform testing after bandwidth test is finished again.
Or, waveform testing and bandwidth test are carried out simultaneously, as shown in Figure 6, after the power adjustment is finished, carry out the waveform testing and the bandwidth test (step 433) of device simultaneously, all whether the power ratio of the waveform of determinator emission and occupied bandwidth conformance with standard (step 435); If the both meets, then can carry out next testing procedure, i.e. transmission test or testing electrical property; If wherein one do not meet or two all do not meet, then need carry out power adjustment (step 420) again, after finishing, adjustment carries out a waveform testing and bandwidth test (step 433) more simultaneously, if still have wherein one do not meet or two all do not meet, then constantly carry out this circulation and all conform with standard, just can carry out next testing procedure up to its transmitted waveform and bandwidth.
And the transmission test of said apparatus can be undertaken by a spectrum analyzer.
Fig. 7 is the signal power of transmitted waveform of 802.11b specification and the graph of a relation of frequency, at this, the standard of transmission test is described with the device of the wireless network standards that is applied to 802.11b.With reference to Fig. 7, in the transmitted waveform standard of general 802.11b specification, the power ratio of main crest is 50dBc, and the peak-to-peak power ratio of main crest and subwave is 30dBc, and the standard of the transmission test of the applied device of the present invention, promptly in device transmitted waveform test, require the main crest of transmitted waveform and the power ratio that the peak-to-peak power ratio of subwave all reaches about 30dBc.And the i.e. OBW among the figure of occupied bandwidth, it then need meet about 30MHz.
In addition, the acceptance test of device mainly is that an attenuator (attenuator) is arranged between a device and the standard set-up (golden sample), with the signal that is connected between testing apparatus and the standard set-up.And be connected with cable (cable) between attenuator, device and the standard set-up.Wherein, this attenuator is a programmable attenuator, and it can adjust decay power, therefore can adjust its decay power to test according to the specification of the applied wireless network standards of device.In addition, the standard specification of this standard set-up will be identical with the applied wireless network standards of device, and for example: installing applied specification is 802.11b, and then the standard specification of standard set-up also is 802.11b.In this test, mainly be that the signal between finder and the standard set-up decays to a predetermined standard time through attenuator, add the decay of cable after, the sensitivity that its device signal receives, i.e. the packet fault rate of testing apparatus (packet error rate; PER).In addition, the frequency of acceptance test each specification in actual reception test, decay to power and packet fault rate standard is as shown in the table:
Table four
| Specification | Frequency (MHz) | Decay to power | PER |
| 802.11a | 5220 | -68dB | ≥10％ |
| 802.11b | 2442 | -80dB | ≥3％ |
| 802.11g | 2442 | -65dB | ≥10％ |
Fig. 8 is the device of the acceptance test of explanation one embodiment of the invention.With reference to Fig. 8,, transmission test is described with the device of the wireless network standards that is applied to 802.11b at this.One attenuator A is arranged between a device P and the standard set-up GP, and with cable Cable it is cascaded.During test, standard set-up GP exports a signal, decay to-80dBm through attenuator A, export device P to and receive, wherein, cable Cable produces approximately-power attenuation of 3dBm, just, when the power attenuation of the output signal of standard set-up GP is received by device P to-83dBm, the packet fault rate of finder P, promptly it transmits the ratio between signal and the received signal.And the packet fault rate that is applied to the device of 802.11b need be lower than 3%.
The transmission test of carrying out device at last is to give the another kind of radio network device of corresponding this device to test the transfer rate of this device by transmitting a predetermined file, for wireless network card, observe wireless network card exactly and transmit the transfer rate that a predetermined file is given the radio wideband modulator-demodulator according to file transfer protocol (FTP).Wherein, for the situation (promptly long distance transmits) of imitating actual use, between wireless network card and the radio wideband modulator-demodulator attenuator can be set, the predetermined file of this transmission can decay via attenuator and be sent to the opposing party after the predetermined power, then the test file delivery time, whether satisfy the criteria to observe the file transfer rate.The frequency, attenuator settings, file size and the delivery time standard that transmit each specification in the test in reality are as shown in the table:
Table 5
| Specification | Frequency (MHz) | Decay power | File size | Delivery time |
| 802.11a | 5220 | 20dB | 20MB | ≥15sec |
| 802.11b | 2442 | 20dB | 5MB | ≥12sec |
| 802.11g | 2442 | 20dB | 20MB | ≥15sec |
With regard to the device that is applied to 802.11b, the time that the file of a 5MB size is sent to another wireless network device after through attenuator decay 20dB needed less than 12 seconds.
Comprehensive the above, the present invention discloses a kind of method of testing of radio network device, be applicable to the radio network device of using more than one wireless network standards, comprise the following steps: that the radio network device that will complete feeds a signal of telecommunication, whether burn to measure this device; Finish previous step rapid after, the power of adjusting device; The device that the power adjustment is finished carries out a transmission test; After finishing transmission test, carry out the acceptance test of device; And after acceptance test finishes, carry out the transmission test of device at last.
Wherein, test at the beginning is that whether device had the phenomenon of burning after testing apparatus continued to feed a fixed current or a fixed voltage, and just, whether the circuit of testing this device has flaw to exist, for example: problems such as short circuit, air cooling weldering.
In addition, the present invention discloses a kind of method of testing of radio network device, also comprises the following steps: to carry out a testing electrical property after the power of finishing device is adjusted, in order to the current drain of testing apparatus when each transmitting channel conformance with standard whether; Whether the current drain of determinator meets preassigned, and this device carries out the power adjustment of device again if do not meet then, and then carries out testing electrical property one time; And if still do not meet, then constantly carry out this circulation and conform with preassigned up to it and just then carry out next step.
In addition, this testing electrical property be except can carrying out earlier after finishing the power adjustment, also can be after transmission test be finished or acceptance test carry out again after finishing.That is to say that device can carry out testing electrical property again after finishing power adjustment, transmission test or acceptance test.
And, the present invention discloses a kind of method of testing of radio network device, wherein comprise the following steps: to finish the register values that writes in the buffer more than three in the rapid device of previous step more than three in the power adjustment, wherein this buffer is in order to control this device; Then carry out the test of the frequency response of power output at the device of the register values that writes; Whether the frequency response of determinator institute power output reaches an error criterion value then, if reach and then do not adjust register values, once more this device is carried out testing procedure, and measures its output valve and whether reach the error criterion value; And, just will adjust register values later and deposit in the buffer if, then constantly carry out this circulation after its output reaches the error criterion value still for not.
Wherein, the register values that writes determines according to the applied wireless network standards of device.In other words, be that frequency band according to big each specification of young pathbreaker of frequency band of each wireless network standards is divided into the scope more than three, thereby can in this scope more than three, obtain the pairing register values of a channel respectively.
In addition, when carrying out the test of frequency response of power output, the frequency response test of can be only carrying out power output at the pairing channel of the register values that writes gets final product.
When this device is applied to the 802.11b specification, promptly be to write channel 1,6 and 11 pairing register values.In addition, when carrying out the test of frequency response of power output again, then can be only test at the frequency response of the power output of channel 1,6 and 11.
And the present invention discloses a kind of method of testing of radio network device, wherein comprises the following steps: to carry out the test of its output waveform for the device of finishing above-mentioned power adjustment in transmission test; Then measure the signal power of its output waveform and the gross power ratio of signal and whether reach a calibration power ratio, if do not reach, then carry out the power adjustment of this device again, then carry out the test of output waveform, whether measure accurate power ratio up to standard again; If still, then constantly carry out this circulation after it exports accurate power ratio up to standard, just carry out the occupied bandwidth test of output waveform again for not; The device of accurate power ratio up to standard carries out the occupied bandwidth test of its output waveform; Whether the bandwidth of being occupied of measuring its output waveform reaches a standard occupied bandwidth, if do not reach, then carry out the power adjustment of this device again, then carry out the test of output waveform, and whether measure accurate power ratio up to standard, the device of accurate power ratio up to standard carries out once the occupied bandwidth test of its output waveform again, measures its whether accurate occupied bandwidth up to standard then; And, promptly finish the transmission test of this device if, then constantly carry out this circulation after it exports accurate occupied bandwidth up to standard still for not.
In addition, also can carry out occupied bandwidth test earlier and measure, install the test and the mensuration of carrying out output waveform after the accurate occupied bandwidth up to standard again.Or, carry out the test and the mensuration of output waveform and occupied bandwidth simultaneously, at this moment, the transmitted waveform of device and occupied bandwidth all conform with standard, just calculate and finish transmission test.
Wherein, transmission test can be undertaken by a spectrum analyzer.
When this device was applied to the specification of 802.11b, its calibration power ratio was about 30dBc, and its standard occupied bandwidth is about 22MHz.
And, the present invention discloses a kind of method of testing of radio network device, wherein the acceptance test device that comprises the following steps: to finish above-mentioned transmission test is tested the packet fault rate that is connected signal between this device and a standard set-up by an attenuator, and wherein the standard specification of this standard set-up is with to install applied wireless network standards identical; Then measure the packet fault rate that connects signal and whether reach a packet fault rate standard,, then carry out above-mentioned power adjustment, and then carry out transmission test, and then carry out once the test and the mensuration of its packet fault rate if do not reach; And, promptly finish the acceptance test of this device if, then constantly carry out this circulation after its packet fault rate standard up to standard still for not.
Wherein, above-mentioned attenuator can be with connecting signal attenuation to one predetermined power, in order to the sensitivity of determinator received signal.
In addition, device, attenuator and standard set-up are cascaded by cable.
When this device was applied to the specification of 802.11b, attenuator can will connect signal attenuation to-80dBm, and the signal that transmits on cable can produce the power attenuation of pact-3dBm, and at this moment, the packet fault rate of this device need be lower than 3%.
In addition, the present invention discloses a kind of method of testing of radio network device, wherein transmits test and comprises the following steps: that the device of finishing above-mentioned acceptance test gives an another kind of radio network device of corresponding this device to test the transfer rate of this device by transmitting a predetermined file; Measure this device and transmit the time decide file and whether meet a delivery time standard,, then carry out above-mentioned power adjustment, and then carry out transmission test, accept test, and then carry out once test and the mensuration of its delivery time as if not meeting; And, promptly finish all tests of this device if, then constantly carry out this circulation after its delivery time standard up to standard still for not.
Wherein, the predetermined file of transmission can decay after the predetermined power by an attenuator, is resent to another kind of radio network device.
For instance, when device was a wireless network card, the another kind of radio network device of corresponding this device was a radio wideband modulator-demodulator.
And when this wireless network card be when being applied to the specification of 802.11b, when transmitting test, this wireless network card transmits the file of a 5MB and gives corresponding radio wideband modulator-demodulator, wherein this file can be decayed by attenuator and is resent to the radio wideband modulator-demodulator behind the 20dB, at this moment, the file delivery time need be lower than 12 seconds.
In addition, the radio network device that the present invention was suitable for can be similarly radio network device such as a wireless network card or a radio wideband modulator-demodulator.Wherein, the applied wireless network standards of this type of radio network device can be specifications such as IEEE 802.11a, IEEE 802.11b, IEEE 802.11g or IEEE 802.11a+g, so above-mentioned every standard, being preassigned, error criterion value, calibration power ratio, standard occupied bandwidth, packet fault rate standard, is the required standard that reaches of each testing procedure of working out according to the applied specification of device.
When the method for testing of radio network device disclosed in this invention is applied to the wireless network card of 802.11b specification, it requires all more previous method of testing height, be that waveform power ratio standard need reach about 30dBc and waveform occupied bandwidth need reach about 22MHz, and the packet fault rate of existing method of testing only requires to reach to be lower than 8%, yet packet fault rate of the present invention then requires to be lower than 3%, therefore, the efficient of the wireless network card finished of test is good by the device of existing method of testing gained also.In addition, aspect the power adjustment, existing method of testing adopts mostly and writes one or two register values, and the present invention then adopts the register values that writes more than three, and the power output frequency response of therefore testing the device of finishing is than smooth by the device of existing method of testing gained.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of claim of the present invention.
Claims (16)
1. the method for testing of a radio network device is applied to meet the radio network device of more than one wireless network standards, it is characterized in that, comprises the following steps:
(a) radio network device that completes is fed a signal of telecommunication, and test this device and whether burn;
(b) finish this step (a) after, the power of adjusting device;
(c) device finished of described power adjustment carries out a transmission test;
(d) after finishing described transmission test, carry out the acceptance test of device; And
(e) after acceptance test is finished, carry out the transmission test of device again;
This step (b) comprises the following steps:
(i) write three above register values in the buffer more than three of the device of finishing described step (a), wherein said buffer is used for controlling this device, and described register values is according to the applied wireless network standards decision of device;
(j) carry out the test of the frequency response of power output at the described device that writes described register values;
(k) measure described frequency response of installing institute's power output and whether reach an error criterion value, if do not reach, then adjust described register values, wherein said error criterion is to work out according to the applied described wireless network standards of described device; And
(l) repeating said steps (j) and described step (k) reach described error criterion value until described frequency response of installing institute's power output.
2. the method for testing of radio network device according to claim 1 is characterized in that, also comprises the following steps:
(f) described device carries out a testing electrical property after finishing this step (b), whether meets a preassigned in order to test the current drain of described device when a plurality of transmitting channel, and wherein preassigned is worked out according to the applied wireless network standards of described device;
(g) whether the current drain of measuring this device meets described preassigned, if do not meet, then this device carries out this step (b) again; And
(h) repeating said steps (f) and step (g) meet described preassigned until the current drain of this device.
3. the method for testing of radio network device according to claim 1 is characterized in that, also comprises the following steps:
(f) described device carries out a testing electrical property after finishing this step (c), whether meets a preassigned in order to test the current drain of described device when a plurality of transmitting channel, and wherein said preassigned is worked out according to the applied wireless network standards of device;
(g) whether the current drain of measuring this device meets described preassigned, if conformance with standard not, then described device carries out this step (b) again; And
(h) repeating said steps (f) and step (g) meet described preassigned until the current drain that installs.
4. the method for testing of radio network device according to claim 1 is characterized in that, also comprises the following steps:
(f) described device is after finishing this step (d), carry out a testing electrical property, whether meet a preassigned in order to test the current drain of described device when a plurality of transmitting channel, it is characterized in that described preassigned installs applied wireless network standards according to this and works out;
(g) whether the current drain of measuring this device meets described preassigned, if do not meet, then described device carries out described step (b) again; And
(h) repeating said steps (f) and step (g) meet described preassigned until the current drain that installs.
5. the method for testing of radio network device according to claim 1, it is characterized in that, described register values is a corresponding channel respectively, and described step (j) is for carrying out the test of the frequency response of power output at the pairing described channel of the described register values that writes.
6. the method for testing of radio network device according to claim 5, it is characterized in that, when described wireless network standards is 802.11b, described step (i) is and writes described channel 1,6 and 11 pairing described register values, and described step (j) is the test of carrying out the frequency response of power output at described channel 1,6 and 11.
7. the method for testing of radio network device according to claim 1 is characterized in that, described step (c) comprises the following steps:
(m) the described device of finishing described step (b) carries out the test of described device output waveform;
(n) whether the signal power of the described device of mensuration institute output waveform and the gross power ratio of signal reach a calibration power ratio, if do not reach, then carry out the power adjustment of described step (b), wherein said calibration power ratio is to work out according to the applied described wireless network standards of described device; And
(o) repeating said steps (m) and described step (n) reach described calibration power ratio until the signal power of described device institute output waveform and the gross power ratio of signal;
(p) the described device that has reached described calibration power ratio carries out the occupied bandwidth test of the output waveform of described device;
(q) measure the bandwidth that described device institute output waveform occupies and whether reach a standard occupied bandwidth, if do not reach, then carry out the power adjustment of described step (b), wherein said standard occupied bandwidth is worked out according to the applied described wireless network standards of described device; And
(r) repeating said steps (m) and described step (q), the bandwidth of occupying until described device institute output waveform reaches described standard occupied bandwidth.
8. the method for testing of radio network device according to claim 7 is characterized in that, when described wireless network standards was 802.11b, described calibration power ratio was about 30 dBc, and described standard occupied bandwidth is about 22MHz.
9. the method for testing of radio network device according to claim 1 is characterized in that, described step (c) comprises the following steps:
(m) the described device of finishing described step (b) carries out the occupied bandwidth test of the output waveform of described device;
(n) measure the bandwidth that described device institute output waveform occupies and whether reach a standard occupied bandwidth, if do not reach, then carry out the power adjustment of described step (b), wherein said standard occupied bandwidth is to work out according to the applied described wireless network standards of described device; And
(o) repeating said steps (m) and described step (n), the bandwidth of occupying until described device institute output waveform reaches described standard occupied bandwidth;
(p) the described device that has reached described standard occupied bandwidth carries out the test of the output waveform of described device;
(q) whether the signal power of the described device of mensuration institute output waveform and the gross power ratio of signal reach a calibration power ratio, if do not reach, then carry out the power adjustment of described step (b), wherein said calibration power ratio is to work out according to the applied described wireless network standards of described device; And
(r) repeating said steps (m) and described step (q) reach described calibration power ratio until the signal power of described device institute output waveform and the gross power ratio of signal.
10. the method for testing of radio network device according to claim 9 is characterized in that, when described wireless network standards was 802.11b, described calibration power ratio was about 30dBc, and described standard occupied bandwidth is about 22MHz.
11. the method for testing of radio network device according to claim 1 is characterized in that, described step (c) comprises the following steps:
(m) the described device of finishing described step (b) carries out the output waveform test of described device and the occupied bandwidth test of output waveform;
(n) whether the gross power ratio of measuring the signal power of described device institute output waveform and signal reaches the bandwidth that a calibration power ratio and output waveform occupy and whether reaches a standard occupied bandwidth, if there is more than one mensuration not reach, then carry out the power adjustment of described step (b), wherein said calibration power ratio and described standard occupied bandwidth are to work out according to the applied described wireless network standards of described device; And
(o) repeating said steps (m) and described step (n) reach described calibration power ratio until the signal power of described device institute output waveform and the gross power ratio of signal, and the bandwidth that output waveform is occupied also reach described standard occupied bandwidth.
12. the method for testing of radio network device according to claim 11 is characterized in that, when described wireless network standards was 802.11b, described calibration power ratio was about 30dBc, and described standard occupied bandwidth is about 22MHz.
13. the method for testing of radio network device according to claim 1 is characterized in that, described step (d) comprises the following steps:
(s) the described device of finishing described step (c) is tested the packet fault rate that one between described device and a standard set-up is connected signal by an attenuator, wherein, the standard specification of described standard set-up is identical with the applied described wireless network standards of described device, and described device, described attenuator and described standard set-up are by many cable series connection, thereby described connection signal decays to a predetermined power via described attenuator, and described predetermined power is adjusted according to the applied described wireless network standards of described device; And
(t) measure the packet fault rate that is connected signal between described device and described standard set-up and whether reach a packet fault rate standard, if do not reach, then carry out the power adjustment of described step (b), wherein said packet fault rate standard is to work out according to the applied described wireless network standards of described device; And
(u) repeating said steps (c), described step (s) and described step (t) reach described packet fault rate standard until the packet fault rate that is connected signal between described device and described standard set-up.
14. the method for testing of radio network device according to claim 13, it is characterized in that, when described wireless network standards is 802.11b, described predetermined power is-80dBm, and the power attenuation that produces pact-3dBm by the signal that described cable transmits, at this moment, described packet fault rate standard is lower than 3%.
15. the method for testing of radio network device according to claim 1 is characterized in that, described step (e) comprises the following steps:
(testing the file transfer rate of described device, wherein said predetermined file decays via an attenuator and is sent to described another kind of radio network device after the predetermined power the described device of v) finishing described step (d) by the another kind of radio network device that transmits a predetermined file and give corresponding described device;
(w) whether meet a delivery time standard if measuring the time that described device transmits described predetermined file, if do not meet, then carry out the power adjustment of described step (b); And
(x) repeating said steps (c), described step (d), described step (v) with described step (w), meet described delivery time standard until the transfer rate of described device.
16. the method for testing of radio network device according to claim 15, it is characterized in that, when described wireless network standards was 802.11b, described predetermined file size was 20dB for 5MB, described predetermined power, and described delivery time standard is for being lower than 12 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100841554A CN100361458C (en) | 2004-10-25 | 2004-10-25 | Method for testing wireless network device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100841554A CN100361458C (en) | 2004-10-25 | 2004-10-25 | Method for testing wireless network device |
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| CN1767454A CN1767454A (en) | 2006-05-03 |
| CN100361458C true CN100361458C (en) | 2008-01-09 |
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| CNB2004100841554A Expired - Fee Related CN100361458C (en) | 2004-10-25 | 2004-10-25 | Method for testing wireless network device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI403103B (en) * | 2010-12-21 | 2013-07-21 | Wistron Corp | Transmission power calibrating method and system applied to wireless apparatus |
| CN102946284B (en) * | 2012-07-26 | 2015-01-21 | 上海寰创通信科技股份有限公司 | System for calibrating and testing radio frequency of WIFI, and testing method |
| TWI664828B (en) * | 2018-02-14 | 2019-07-01 | 和碩聯合科技股份有限公司 | Test method and test system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1292058A1 (en) * | 2001-09-11 | 2003-03-12 | Psytechnics Limited | Method and apparatus for measurement of channel transmission accuracy |
| CN1464651A (en) * | 2002-06-26 | 2003-12-31 | 华为技术有限公司 | Method for performance testing of radio communication product |
| CN1529959A (en) * | 2000-09-01 | 2004-09-15 | �����շ�������˹�� | System and method for measuring wireless device and network usage and performance metrics |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529959A (en) * | 2000-09-01 | 2004-09-15 | �����շ�������˹�� | System and method for measuring wireless device and network usage and performance metrics |
| EP1292058A1 (en) * | 2001-09-11 | 2003-03-12 | Psytechnics Limited | Method and apparatus for measurement of channel transmission accuracy |
| CN1464651A (en) * | 2002-06-26 | 2003-12-31 | 华为技术有限公司 | Method for performance testing of radio communication product |
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