| 摘要 |
The invention provides user equipment, a base station and a channel information feedback method. The user equipment comprises a first wireless communication module, a first extracting module, a weighting module, a first quantizing module, a second extracting module, a second quantizing module and a feedback module, wherein the first extracting module is used for extracting small-sized channel quality information (CQI); the weighting module is used for weighting the small-sized CQI by using a weighting factor alpha relevant to a constellation diagram and the small-sized CQI to obtain weighted small-sized CQI; the first quantizing module is used for quantizing every element of the weighted small-sized CQI by using the constellation diagram to obtain CDI (Channel Direction Information); the second extracting module is used for extracting large-sized CQI; the second quantizing module is used for quantizing an arithmetic product of the large-sized CQI and the weighting factor to obtain CQI; and the feedback module is used for feeding back the CDI and the CQI to the base station by using the first wireless communication module for the base station to reconstruct a channel for performing downlink transmission processing. According to the invention, the data rate of a user is increased. |
