CN102946284B - System for calibrating and testing radio frequency of WIFI, and testing method - Google Patents
System for calibrating and testing radio frequency of WIFI, and testing method Download PDFInfo
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Abstract
The invention discloses a system and a method for calibrating and testing the radio frequency of a WIFI (wireless fidelity). The system comprises a transceiving device for WIFI radio frequency under test, a modular transceiving device for WIFI radio frequency for enabling various parameters to reach the standard by calibration and debugging, and a control device for controlling the transceiving device for WIFI radio frequency under test and the modular transceiving device for WIFI radio frequency, wherein the radio frequency transceiving end of the transceiving device for WIFI radio frequency under test is connected with that of the modular transceiving device for WIFI radio frequency by a feeder line; and the control device is connected with the data ends of both the transceiving device for WIFI radio frequency under test and the modular transceiving device for WIFI radio frequency by a wire respectively. The system and method have the advantages that the usage quantity of radio frequency meters can be reduced, equipment is saved and the capacity is increased when the modular transceiving device for WIFI radio frequency is used for calibrating and testing radio frequency; and meanwhile, the control device can implement function deep customization by changing software function based on a PC (personnel computer).
Description
Technical field
The present invention relates to a kind of RF calibration and test macro, particularly relate to a kind of radio frequency of WIFI and test macro and calibration and test side.
Background technology
The RF calibration of existing WIFI (wireless network) equipment and test be all generally instrumentation to carry out calibration and the test of radio frequency, on the one hand, the testing efficiency of test instrumentation and customizing requires lower, cannot meet diversified test request; On the other hand, test instrumentation price is more expensive, to the unable extensive purchase of medium-sized and small enterprises, will certainly affect its production capacity like this.
Summary of the invention
For the problems referred to above existed when existing Wireless Communication Equipment RF calibration and test, now provide a kind of and be intended to reduce costs and the radio frequency of WIFI that can highly customize and test macro and calibration and test side.
A kind of radio frequency of WIFI and test macro, wherein, comprising wireless network RF receiving/transmission device to be tested, debugging the template wireless network RF receiving/transmission device and control device for controlling wireless network transceiving device to be tested and template wireless network RF receiving/transmission device that make parameters up to standard through calibration;
The radio-frequency receiving-transmitting end of described wireless network RF receiving/transmission device to be tested is connected by the radio-frequency receiving-transmitting end of feeder line with described template wireless network RF receiving/transmission device;
Described control device is connected with the data terminal of described wireless network RF receiving/transmission device to be tested and the data terminal of described template wireless network transceiving device respectively by netting twine.
Preferably, signal attenuation device is connected with between the radio-frequency receiving-transmitting end of described wireless network RF receiving/transmission device to be tested and the radio-frequency receiving-transmitting end of described template wireless network RF receiving/transmission device.
Preferably, described control device is connected with the data terminal of described wireless network RF receiving/transmission device to be tested and the data terminal of described template wireless network transceiving device respectively by signal exchanging apparatus.
Preferably, described control device is the PC being provided with specific software.
A kind of radio frequency of WIFI and method of testing, wherein, comprise above-mentioned radio frequency of WIFI and test macro, specifically comprise the steps,
What the transmission bag number of wireless network radio-frequency receiving-transmitting equipment to be tested under rate that step a, described control device preset needs the channel of test, multiple different test rate, the transmitted power under different test rate, difference test the speed, difference tested the speed that received RF signal strength criterion and difference under rate test the speed EVM value under rate passes through standard;
Step b, described control device control described wireless network RF receiving/transmission device to be tested by selected channel, carry out radio-frequency transmissions with test rate preset in control device described in;
Step c, described template wireless network RF receiving/transmission device receive described wireless network RF receiving/transmission device to be tested and send radiofrequency signal, and the radio-frequency (RF) signal strength result received is back to described control device;
The radio-frequency (RF) signal strength result received compares with received RF signal strength criterion under preset present rate by steps d, described control device, and according to the transmitting power of the described wireless network RF receiving/transmission device to be tested of comparative result adjustment, until the signal strength signal intensity that described template wireless network RF receiving/transmission device receives meets received RF signal strength criterion under present rate preset in described control device.Described control device controls described wireless network RF receiving/transmission device to be tested using current transmit power as the target transmit power of present channel under present rate;
Step e, repeat step b to steps d, until all channels preset in described control device all determine target transmit power under all test rates;
Step f, described control device control described wireless network RF receiving/transmission device to be tested sends selected channel, selected speed wireless network data bag with a target power;
Step g, described template wireless network RF receiving/transmission device calculate the EVM value under present rate after receiving wireless network data bag, and result of calculation is sent to described control device;
Step h, described control device by the result of calculation that receives and the EVM value under the present rate preset by standard comparing, judge whether described wireless network RF receiving/transmission device to be tested is tested by this;
Step I, repeat step f to step h, until all tested mistake of the EVM value of all channels preset in described control device under all test rates.
A kind of wireless network radio frequency test method, wherein, comprises above-mentioned radio frequency of WIFI and test macro, specifically comprises the steps,
Step s1, described control device preset the speed needing the channel of test, multiple different test rate, the transmission number-of-packet of each speed lower bolster wireless network RF receiving/transmission device, the scope of receiving sensitivity, wireless network RF receiving/transmission device to be tested to reply after receiving the packet of assigned rate, receiving sensitivity minimum under each speed pass through standard;
Step s2, described control device control described template wireless network RF receiving/transmission device and send selected channel, selected signal strength signal intensity the wireless network data bag of selected speed, and the quantity of described packet is the number-of-packet that under present rate preset in described control device, described template wireless network RF receiving/transmission device sends;
Each packet that step s3, described wireless network RF receiving/transmission device to be tested receive all sends response according to the response speed of the preset present rate of described control device to described template wireless network RF receiving/transmission device;
Step s4, described template wireless network RF receiving/transmission device receive the response that described wireless network RF receiving/transmission device to be tested sends;
Under step s5, described template wireless network RF receiving/transmission device record current signal strength, present channel sends with present rate, the number-of-packet that described wireless network RF receiving/transmission device to be tested receives, and calculates packet loss:
Under step s6, described template wireless network RF receiving/transmission device transmit this current signal strength to described control device, the packet loss of present channel under present rate;
Step s7, the packet loss received as control device pass through standard by preset receiving sensitivity, then control described template wireless network RF receiving/transmission device by described control device and reduce channel strength, re-execute step s2 step s6, until the packet loss that control device receives does not pass through standard by preset receiving sensitivity, and not exceeding preset standard by preset receiving sensitivity by the lowest channel intensity of the described template wireless network RF receiving/transmission device of standard, then this test is passed through;
Step s8, described control device control described template wireless network RF receiving/transmission device and change test rate, and repeat step s2 to step s7, until all tested mistake of all preset speed under present channel;
Control device described in step s9. controls described template wireless network RF receiving/transmission device and changes test channel, and repeats step s2 to step s8, until when all tested mistake of all preset channels.
Preferably, the computational methods of described packet loss are, the wireless network data bag sum that described template wireless network RF receiving/transmission device sends deducts the difference of the wireless network data bag number that described wireless network RF receiving/transmission device to be tested receives divided by the wireless network data bag sum that described template wireless network RF receiving/transmission device sends.
The beneficial effect of technique scheme is:
Utilize template wireless network RF receiving/transmission device to carry out RF calibration and test, the usage quantity of RF instrumentation can be reduced, save equipment investment and improve production capacity, with timed unit Based PC, by changing the customization of the software function practical function degree of depth.
Accompanying drawing explanation
Fig. 1 is the building-block of logic of the embodiment of a kind of radio frequency of WIFI of the present invention and test macro;
Fig. 2 is the FB(flow block) of the embodiment of a kind of radio frequency of WIFI of the present invention and method of testing;
Fig. 3 is the FB(flow block) of the embodiment of a kind of wireless network radio frequency test method of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
The embodiment of a kind of radio frequency of WIFI and test macro as shown in Figure 1, wherein, comprising wireless network RF receiving/transmission device to be tested, debugging the template wireless network RF receiving/transmission device and control device for controlling wireless network transceiving device to be tested and template wireless network RF receiving/transmission device that make parameters up to standard through calibration, template wireless network RF receiving/transmission device and wireless network RF receiving/transmission device to be tested generally select identical equipment, and its difference is only that template wireless network RF receiving/transmission device makes parameters up to standard through calibration debugging; The radio-frequency receiving-transmitting end of wireless network RF receiving/transmission device to be tested is connected by the radio-frequency receiving-transmitting end of feeder line with template wireless network RF receiving/transmission device; Control device is connected with the data terminal of wireless network RF receiving/transmission device to be tested and the data terminal of template wireless network transceiving device respectively by netting twine.Control device, need not special connection line by local area network (LAN) Control architecture wireless network RF receiving/transmission device and wireless network RF receiving/transmission device to be tested, highly versatile.
On technique scheme basis, further, signal attenuation device is connected with between the radio-frequency receiving-transmitting end of wireless network RF receiving/transmission device to be tested and the radio-frequency receiving-transmitting end of template wireless network RF receiving/transmission device.The object of signalization attenuating device prevents the excessive damage RF receiving/transmission device of signal strength signal intensity.
On technique scheme basis, further, control device is connected with the data terminal of wireless network RF receiving/transmission device to be tested and the data terminal of template wireless network transceiving device respectively by signal exchanging apparatus.Signal exchanging apparatus can be switch or router, can select signal exchanging apparatus according to whole topology of networks and scale.
On technique scheme basis, further, control device is the PC being provided with specific software.
As shown in Figure 2, in embodiments of the invention, also comprise a kind of radio frequency of WIFI and method of testing, wherein, comprise above-mentioned radio frequency of WIFI and test macro, specifically comprise the steps,
What the transmission bag number of wireless network radio-frequency receiving-transmitting equipment to be tested under rate that step a, control device preset needs the channel of test, multiple different test rate, the transmitted power under different test rate, difference test the speed, difference tested the speed that received RF signal strength criterion and difference under rate test the speed EVM value under rate passes through standard;
Step b, control device control wireless network RF receiving/transmission device to be tested by selected channel, carry out radio-frequency transmissions with test rate preset in a control device;
Step c, template wireless network RF receiving/transmission device receive wireless network RF receiving/transmission device to be tested and send radiofrequency signal, and the radio-frequency (RF) signal strength result received is back to control device;
The radio-frequency (RF) signal strength result received compares with received RF signal strength criterion under preset present rate by steps d, control device, and adjust the transmitting power of wireless network RF receiving/transmission device to be tested according to comparative result, until the signal strength signal intensity that template wireless network RF receiving/transmission device receives meets received RF signal strength criterion under present rate preset in control device.Control device controls wireless network RF receiving/transmission device to be tested using current transmit power as the target transmit power of present channel under present rate;
Step e, repeat step b to steps d, until all channels preset in control device all determine target transmit power under all test rates;
Step f, control device control wireless network RF receiving/transmission device to be tested sends selected channel, selected speed wireless network data bag with a target power;
Step g, template wireless network RF receiving/transmission device calculate the EVM value under present rate after receiving wireless network data bag, and result of calculation is sent to control device;
Step h, control device by the result of calculation that receives and the EVM value under the present rate preset by standard comparing, judge whether wireless network RF receiving/transmission device to be tested is tested by this;
Step I, repeat step f to step h, until all tested mistake of the EVM value of all channels preset in control device under all test rates.
As shown in Figure 3, in embodiments of the invention, also comprise a kind of wireless network radio frequency test method, wherein, comprise above-mentioned radio frequency of WIFI and test macro, specifically comprise the steps,
Step s1, control device preset the speed needing the channel of test, multiple different test rate, the transmission number-of-packet of each speed lower bolster wireless network RF receiving/transmission device, the scope of receiving sensitivity, wireless network RF receiving/transmission device to be tested to reply after receiving the packet of assigned rate, receiving sensitivity minimum under each speed pass through standard;
The wireless network data bag that step s2, control device Control architecture wireless network RF receiving/transmission device send selected channel, selected signal strength signal intensity also selectes speed, the quantity of packet is the number-of-packet that present rate lower bolster wireless network RF receiving/transmission device preset in control device sends;
Each packet that step s3, wireless network RF receiving/transmission device to be tested receive all sends response according to the response speed of the preset present rate of control device to template wireless network RF receiving/transmission device;
Step s4, template wireless network RF receiving/transmission device receive the response that wireless network RF receiving/transmission device to be tested sends;
Under step s5, template wireless network RF receiving/transmission device record current signal strength, present channel sends with present rate, the number-of-packet that wireless network RF receiving/transmission device to be tested receives, and calculates packet loss:
Under step s6, template wireless network RF receiving/transmission device transmit this current signal strength to control device, the packet loss of present channel under present rate;
Step s7, the packet loss received as control device pass through standard by preset receiving sensitivity, then reduce channel strength by control device Control architecture wireless network RF receiving/transmission device, re-execute step s2 step s6, until the packet loss that control device receives does not pass through standard by preset receiving sensitivity, and not exceeding preset standard by preset receiving sensitivity by the lowest channel intensity of the template wireless network RF receiving/transmission device of standard, then this test is passed through;
Step s8, control device Control architecture wireless network RF receiving/transmission device change test rate, and repeat step s2 to step s7, until all tested mistake of all preset speed under present channel;
Step s9. control device Control architecture wireless network RF receiving/transmission device changes test channel, and repeats step s2 to step s8, until when all tested mistake of all preset channels.
On technique scheme basis, further, the computational methods of packet loss are, the wireless network data bag sum that template wireless network RF receiving/transmission device sends deducts the difference of the wireless network data bag number that wireless network RF receiving/transmission device to be tested receives divided by the wireless network data bag sum that template wireless network RF receiving/transmission device sends.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection range is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilizations specification of the present invention and diagramatic content and apparent change obtain in protection scope of the present invention.
Claims (9)
1. a radio frequency of WIFI and method of testing, it is characterized in that, be applied to a kind of radio frequency of WIFI and test macro, described radio frequency of WIFI and test macro comprising wireless network RF receiving/transmission device to be tested, debugging the template wireless network RF receiving/transmission device and control device for controlling wireless network transceiving device to be tested and template wireless network RF receiving/transmission device that make parameters up to standard through calibration;
The radio-frequency receiving-transmitting end of described wireless network RF receiving/transmission device to be tested is connected by the radio-frequency receiving-transmitting end of feeder line with described template wireless network RF receiving/transmission device;
Described control device is connected with the data terminal of described wireless network RF receiving/transmission device to be tested and the data terminal of described template wireless network transceiving device respectively by netting twine;
Specifically comprise the steps,
What the transmission bag number of wireless network radio-frequency receiving-transmitting equipment to be tested under rate that step a, described control device preset needs the channel of test, multiple different test rate, the transmitted power under different test rate, difference test the speed, difference tested the speed that received RF signal strength criterion and difference under rate test the speed EVM value under rate passes through standard;
Step b, described control device control described wireless network RF receiving/transmission device to be tested by selected channel, carry out radio-frequency transmissions with test rate preset in control device described in;
Step c, described template wireless network RF receiving/transmission device receive described wireless network RF receiving/transmission device to be tested and send radiofrequency signal, and the radio-frequency (RF) signal strength result received is back to described control device;
Steps d, the radio-frequency (RF) signal strength result received compares with received RF signal strength criterion under preset present rate by described control device, and the transmitting power of described wireless network RF receiving/transmission device to be tested is adjusted according to comparative result, until the signal strength signal intensity that described template wireless network RF receiving/transmission device receives meets received RF signal strength criterion under present rate preset in described control device, described control device controls described wireless network RF receiving/transmission device to be tested using current transmit power as the target transmit power of present channel under present rate,
Step e, repeat step b to steps d, until all channels preset in described control device all determine target transmit power under all test rates;
Step f, described control device control described wireless network RF receiving/transmission device to be tested sends selected channel, selected speed wireless network data bag with a target power;
Step g, described template wireless network RF receiving/transmission device calculate the EVM value under present rate after receiving wireless network data bag, and result of calculation is sent to described control device;
Step h, described control device by the result of calculation that receives and the EVM value under the present rate preset by standard comparing, judge whether described wireless network RF receiving/transmission device to be tested is tested by this;
Step I, repeat step f to step h, until all tested mistake of the EVM value of all channels preset in described control device under all test rates.
2. radio frequency of WIFI and method of testing as claimed in claim 1, it is characterized in that, between the radio-frequency receiving-transmitting end of described wireless network RF receiving/transmission device to be tested and the radio-frequency receiving-transmitting end of described template wireless network RF receiving/transmission device, be connected with signal attenuation device.
3. radio frequency of WIFI and method of testing as claimed in claim 1, it is characterized in that, described control device is connected with the data terminal of described wireless network RF receiving/transmission device to be tested and the data terminal of described template wireless network transceiving device respectively by signal exchanging apparatus.
4. radio frequency of WIFI and method of testing as claimed in claim 1, it is characterized in that, described control device is the PC being provided with specific software.
5. a wireless network radio frequency test method, it is characterized in that, be applied to a kind of radio frequency of WIFI and test macro, described radio frequency of WIFI and test macro comprising wireless network RF receiving/transmission device to be tested, debugging the template wireless network RF receiving/transmission device and control device for controlling wireless network transceiving device to be tested and template wireless network RF receiving/transmission device that make parameters up to standard through calibration;
The radio-frequency receiving-transmitting end of described wireless network RF receiving/transmission device to be tested is connected by the radio-frequency receiving-transmitting end of feeder line with described template wireless network RF receiving/transmission device;
Described control device is connected with the data terminal of described wireless network RF receiving/transmission device to be tested and the data terminal of described template wireless network transceiving device respectively by netting twine; Specifically comprise the steps,
Step s1, described control device preset the speed needing the channel of test, multiple different test rate, the transmission number-of-packet of each speed lower bolster wireless network RF receiving/transmission device, the scope of receiving sensitivity, wireless network RF receiving/transmission device to be tested to reply after receiving the packet of assigned rate, receiving sensitivity minimum under each speed pass through standard;
Step s2, described control device control described template wireless network RF receiving/transmission device and send selected channel, selected signal strength signal intensity the wireless network data bag of selected speed, and the quantity of described packet is the number-of-packet that under present rate preset in described control device, described template wireless network RF receiving/transmission device sends;
Each packet that step s3, described wireless network RF receiving/transmission device to be tested receive all sends response according to the response speed of the preset present rate of described control device to described template wireless network RF receiving/transmission device;
Step s4, described template wireless network RF receiving/transmission device receive the response that described wireless network RF receiving/transmission device to be tested sends;
Under step s5, described template wireless network RF receiving/transmission device record current signal strength, present channel sends with present rate, the number-of-packet that described wireless network RF receiving/transmission device to be tested receives, and calculates packet loss:
Under step s6, described template wireless network RF receiving/transmission device transmit this current signal strength to described control device, the packet loss of present channel under present rate;
If the packet loss that step s7 control device receives passes through standard by preset receiving sensitivity, then control described template wireless network RF receiving/transmission device by described control device and reduce channel strength, re-execute step s2 step s6, until the packet loss that control device receives does not pass through standard by preset receiving sensitivity, and not exceeding preset standard by preset receiving sensitivity by the lowest channel intensity of the described template wireless network RF receiving/transmission device of standard, then this test is passed through;
Step s8, described control device control described template wireless network RF receiving/transmission device and change test rate, and repeat step s2 to step s7, until all tested mistake of all preset speed under present channel;
Step s9, described control device control described template wireless network RF receiving/transmission device and change test channel, and repeat step s2 to step s8, until when all tested mistake of all preset channels.
6. wireless network radio frequency test method as claimed in claim 5, it is characterized in that, the computational methods of described packet loss are, the wireless network data bag sum that described template wireless network RF receiving/transmission device sends deducts the difference of the wireless network data bag number that described wireless network RF receiving/transmission device to be tested receives divided by the wireless network data bag sum that described template wireless network RF receiving/transmission device sends.
7. wireless network radio frequency test method as claimed in claim 5, is characterized in that, be connected with signal attenuation device between the radio-frequency receiving-transmitting end of described wireless network RF receiving/transmission device to be tested and the radio-frequency receiving-transmitting end of described template wireless network RF receiving/transmission device.
8. wireless network radio frequency test method as claimed in claim 5, it is characterized in that, described control device is connected with the data terminal of described wireless network RF receiving/transmission device to be tested and the data terminal of described template wireless network transceiving device respectively by signal exchanging apparatus.
9. wireless network radio frequency test method as claimed in claim 5, it is characterized in that, described control device is the PC being provided with specific software.
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| US10341033B2 (en) * | 2015-09-02 | 2019-07-02 | Futurewei Technologies, Inc. | System and method for securing transmit opportunities for RF calibrations of Wi-Fi devices |
| CN106332139B (en) * | 2016-08-31 | 2020-03-20 | 成都飞鱼星科技股份有限公司 | Wireless access equipment detection method and system |
| CN106487459A (en) * | 2016-09-29 | 2017-03-08 | 上海斐讯数据通信技术有限公司 | A kind of test system of receiver radio frequency static parameter |
| CN107566053B (en) * | 2017-08-31 | 2021-08-20 | Tcl通力电子（惠州）有限公司 | Method and system for testing radio frequency index and computer readable storage medium |
| CN107612639A (en) * | 2017-09-18 | 2018-01-19 | 上海斐讯数据通信技术有限公司 | The test system and method for a kind of receiving sensitivity |
| CN108400823A (en) * | 2018-02-27 | 2018-08-14 | 四川斐讯信息技术有限公司 | A kind of calibration method and equipment of radio-frequency emission power |
| CN111478737B (en) * | 2020-04-21 | 2022-07-19 | Oppo广东移动通信有限公司 | Radio frequency test method, device, electronic device and storage medium |
| CN111601335B (en) * | 2020-04-22 | 2022-04-26 | 烽火通信科技股份有限公司 | Wireless network performance test method and wireless AP |
| CN111585670B (en) * | 2020-04-24 | 2022-06-17 | 惠州拓邦电气技术有限公司 | Detection method and detection system of wireless detection system |
| CN112040439A (en) * | 2020-07-27 | 2020-12-04 | 深圳市金溢科技股份有限公司 | OBU radio frequency parameter calibration method, OBU device, radio frequency device and system |
| CN112350784B (en) * | 2020-09-21 | 2022-12-20 | 宇龙计算机通信科技(深圳)有限公司 | WiFi module calibration method and device, storage medium and electronic equipment |
| CN112821965A (en) * | 2021-01-06 | 2021-05-18 | 深圳市精泰达科技有限公司 | WIFI radio frequency test system and method |
| CN115225541B (en) * | 2022-05-12 | 2023-05-09 | 中国电子技术标准化研究院 | Calibration method, device and storage medium of self-organizing network test system |
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| CN100361458C (en) * | 2004-10-25 | 2008-01-09 | 智捷科技股份有限公司 | Method for testing wireless network device |
| US20060183432A1 (en) * | 2005-01-12 | 2006-08-17 | Donald Breslin | Calibration using range of transmit powers |
| CN101409653A (en) * | 2008-11-27 | 2009-04-15 | 深圳华为通信技术有限公司 | Method and system for testing communication product |
| CN101854218A (en) * | 2010-06-03 | 2010-10-06 | 北京天碁科技有限公司 | System and method for testing radio-frequency performance of wireless terminal |
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