| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for adjusting a modulation encoding scheme (MCS), user equipment and a base station, enabling the base station to recognize channel quality deviation estimated in the user equipment, to dynamically adjust the MCS for use at downlink data transmission, to effectively improve MCS accuracy in subsequent transmission and to improve a system throughput and a user throughput.SOLUTION: The method includes the steps of: receiving by user equipment a first downlink data frame transmitted at a first time; estimating a first signal-to-interference noise ratio (SINR) and a first channel quality indicator (CQI), on the basis of the first downlink data frame; estimating a second SINR and a second CQI on the basis of the second downlink data frame transmitted at a second time after the first time; and calculating a MCS variation to feed back to the base station, on the basis of one or a plurality of parameters among the first CQI, the second CQI, the first SINR and the second SINR.SELECTED DRAWING: Figure 1 |
