Base station RF index testing system and method, and RF box for TD-SCDMA system

Abstract

The invention discloses a radiofrequency case suitable for testing base station radiofrequency index of a TD-SCDMA system, and a base station testing system and a method using the radiofrequency case. The radiofrequency case includes a radiofrequency switch, an attenuator, a mixer, an isolator, a circulator and a power divider. Signals from signal sources are inputted into the mixer via a radiofrequency signal inlet on the radiofrequency case and one path of the signal is performed attenuation treatment via the attenuator before it is inputted into the mixer; the radiofrequency signals treated by the mixer is inputted into a common port of the radiofrequency switch via the isolator and the circulator, and then is inputted into the base station via a switch connected with the common port; and meanwhile, the circulator receives downlink signals from the radiofrequency switch and isolates the uplink signals from the downlink signals, then the radiofrequency signals are multiplexed by the power divider and is outputted to a frequency spectrograph for performing radiofrequency index testing. The invention also discloses the base station testing system and the method based on the radiofrequency case. The invention has high automation degree and can achieve correct testing results.

Description

technical field [0001] The invention relates to a radio frequency box especially suitable for base station testing of a time division synchronous code division multiple access system, a base station testing system and method using the radio frequency box. Background technique [0002] In recent years, the third-generation mobile communication has always been the focus of people's attention, and the third-generation mobile communication standards have gradually formed three mainstream standards through continuous integration, that is, WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access) proposed by Europe. Address), CDMA2000 proposed by the United States and TD-SCDMA (Time Division-Code Division Multiple Access, time division-synchronous code division multiple access) proposed by China. As a TDD (Time Division Duplex, Time Division Duplex) mode technology, the TD-SCDMA system is more suitable for the business environment with asymmetric uplin...

AI Technical Summary

Problems solved by technology

The realization of the automatic test of receiving characteristics in this way cannot be automated, and the result value of tracking BER (bit error rate) must be manually judged whether the result is correct to make the program enter the following process. This requires that the tester must be at the test site during the test, otherwise test could not be completed

[0008] The current test method has the limitation of human intervention. For testing the radio frequency indicators of base stations, human factors are always accompanied by many subjective factors, resulting in inaccurate test results.

And for different types of base stations, the test software cannot be used universally

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