Method and device for correcting radio-frequency channel

The embodiment of the invention discloses a method for correcting a radio-frequency channel. The method comprises the following steps that: a BBU obtains a channel estimation value of a first radio-frequency channel according to a digital correction signal fed back by an antenna unit, and determines an initial correction compensation coefficient of the first radio-frequency channel according to the channel estimation value; the BBU corrects the initial correction compensation coefficient of the first radio-frequency channel according to the time delay value and the sampling time of the first radio-frequency channel, such that a first correction compensation coefficient is obtained; the BBU performs alignment correction of the first correction compensation coefficient according to the correction compensation coefficient of a reference radio-frequency channel, such that a second correction compensation coefficient is obtained; and a transmitted signal mapped to the antenna unit is corrected according to the second correction compensation coefficient. The embodiment of the invention further discloses a device for correcting the radio-frequency channel. By means of the invention, various radio-frequency channels can be corrected; and the reciprocity of uplink and downlink channels can be ensured.