Continuous quality improvement (CQI) forecasting method based on channel reciprocity compensation and base station

A continuous quality improvement (CQI) forecasting method based on channel reciprocity compensation and a base station belong to the technical field of wireless communication. The CQI forecasting method includes: inversely mapping CQI values fed back by a moving table to obtain signal-to-interference plus noise ratio (SINR) corresponding to the CQI values fed back by the moving table, and confirming the estimated values of the SINR at the current time; obtaining the estimated values of CQI at the current time according to the estimated values of the SINR at the current time through mapping, and judging a channel to be a fast-varying channel or a slow-varying channel according to stored CQI values fed back by the moving table with certain number and close to the estimated values of CQI at the current time and correspondingly obtained estimated values of CQI of the estimated values of CQI at the current time; and respectively confirming corresponding forecasting values of CQI of the slow-varying channel or the fat-varying channel. The CQI forecasting method uses channel reciprocity in a system, enhances relativity of forecasted CQI and CQI fed back by the moving table during scheduling, and ensures accuracy of the forecasted CQI during scheduling.