Methods and devices for testing downlink and uplink wireless indexes of active antenna system

Abstract

The invention provides methods and devices for testing downlink and uplink wireless indexes of an active antenna system. The method for testing the downlink wireless index is carried out in a wave-absorbing dark room or a signal non-interference space and comprises the following steps of: acquiring calibration parameters of the wave-absorbing dark room or the signal non-interference space; configuring the active antenna system to transmit a wireless wave beam to a receiving antenna, wherein the wireless wave beam is triggered and generated by a base-band signal from a base-band processing unit outside the wave-absorbing dark room or the signal non-interference space, and then transmitted to a test instrument outside the wave-absorbing dark room or the signal non-interference space through the receiving antenna; and starting the base-band processing unit and the active antenna system, and testing the wireless indexes of the adjusted active antenna system according to the calibration parameters. By adoption of the technical scheme provided by the invention, testing of various wireless indexes of the active antenna system is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for testing downlink and uplink wireless indicators of an active antenna system. Background technique [0002] The active antenna system is a base station communication system in which multi-channel transceivers and base station antennas are integrated. Such as figure 1 As shown, in the active antenna system 10, the multi-channel digital intermediate frequency processing module 100 performs baseband data transmission with the baseband processing unit 12; the multi-channel analog transceiver channel 102 converts the digital signal into a downlink analog radio frequency signal or an uplink analog signal to be received converted into digital signals; the multi-channel analog transceiver channel 102 transmits and receives wireless signals through the antenna unit array 104 . [0003] At present, the traditional wireless base station test adopts the conduction t...

AI Technical Summary

Problems solved by technology

[0004] Using conduction test to measure the radio frequency index of the active part of the active antenna system will cause the active antenna system to be split into the active part and the antenna part; this will increase redundant interfaces, thus destroying the integrity of the active antenna system;

[0005] The conduction test cannot test the gain, pattern and other indicators of the antenna, and the performance test of the antenna index of the active antenna system still needs to be carried out in the antenna test field environment;

[0006] The performance and index test of the antenna part of the active antenna system requires the configuration of the weights (amplitude and phase of the signal) of each antenna array element. This set of weights requires the digital processing link of the active part to accurately calculate and configure; However, using the traditional base station antenna test method, due to the inability to accurately configure the weights of each antenna array element, the performance and index tests of the active antenna system antenna will not be possible.

[0007] From the above content, it can be seen that there is no test scheme for wireless index testing of active antenna products in the prior art, and no effective solution has been proposed for the above problems in related technologies.

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