System for testing space radio frequency performance of WLAN apparatus

Abstract

The invention relates to an aerial radio frequency performance testing system for wireless local-area network (WLAN) equipment, belonging to the radio frequency testing technical field of wireless communication products. And it comprises: WLAN protocol tester, spectrum analyzer, cellular base station simulator, system control platform and connecting cables, where the system control platform is connected through cable and TCP / IP protocol with the WLAN protocol tester to control the WLAN protocol tester to make related tests; the system control platform is connected through GPIB cable with the cellular base station simulator and the spectrum analyzer. And it accords with national standard--Wi-Fi Mobile Converged Devices RF Certification Test Document and can complete all contained test items specified in the standard for making OTA test on WLAN equipment, having high testing accuracy, high automation degree and low indeterminacy, and simple and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of radio frequency testing of wireless communication products, in particular to the design of a testing system for wireless local area network equipment. Background technique [0002] With the development of modern industry, the electromagnetic environment is deteriorating day by day. All kinds of wireless communication equipment can only guarantee the quality of communication service if they have good radiation radio frequency characteristics and receiving characteristics, that is, the total radiation power (TRP) must be large, and the total receiving sensitivity ( TIS) should be high, that is, the air interface OTA (over-the-air radio frequency test) performance of the product should be better. Especially in the 2.4 / 5GHz license-free frequency band, the wide application of various wireless products makes the electromagnetic environment of this frequency band extremely harsh. The wireless communication equi...

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Problems solved by technology

However, this method does not work for wireless LAN equipment. Since the wireless LAN equipment is a time-division device with the same frequency, its uplink and downlink share the same frequency, so the uplink and downlink cannot be completely separated. For the radiation power test, if the frequency is tested by the receiver The sum of the power under the test cannot reflect the actual power of the EUT (device under test), and the same reason is also applicable to the receiving sensitivity test

At present, the Wi-Fi Alliance, an international standard organization, and the CTIA standard group have jointly promulgated the "Wi-Fi Mobile Converged Devices RFCertification Test Document", which specifies how to conduct OTA tests for wireless LAN devices. However, due to technical , equipment and site constraints, it is difficult to achieve the test specified in the above standards

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