| 摘要 |
Disclosed are a method and system for calibrating a downlink channel of a smart antenna. The method comprises: distributing a downlink time-domain calibration sequence for a downlink channel to be calibrated; during a period of each follow-up downlink GAP, obtaining a plurality of downlink time-domain calibration sequences, and sending the plurality of downlink time-domain calibration sequences to a corresponding downlink channel until all the downlink time-domain calibration sequences are sent; collecting the downlink time-domain calibration sequences passing through the downlink channel for each downlink GAP, coupling and processing the downlink time-domain calibration sequences into downlink comprehensive time-domain calibration sequences, and then sending the downlink comprehensive time-domain calibration sequences to a downlink calibration channel; and after time-frequency conversion is carried out on the downlink comprehensive time-domain calibration sequences passing through the downlink calibration channel, performing caching, calculating a compensation value of the downlink channels to be calibrated, and online calibrating, according to the compensation value, the downlink channels to be calibrated. Also disclosed are a method and system for calibrating an uplink channel of a smart antenna. |
