| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a user facility, a base station and a channel information feedback method. <P>SOLUTION: A user facility includes: a first radio communication module; a first extraction module which extracts a small scale channel state information; a weighting module which uses a weighting factor correlated to a constellation chart and the small scale channel state information to perform weighting processing on the small scale channel state information, thereby acquiring channel state information; a first quantizing module which uses the constellation chart to perform quantizing processing on elements of the weighted small scale channel state information, thereby acquiring channel direction information CDI; a second extraction module for extracting large scale channel state information; a second quantization module which quantizes a product of the large scale channel state information and the weighting factor to acquire channel quality information CQI; and a feedback module for feeding the channel direction information CDI and the channel quality information CQI in order to cause a base station to reconstruct channels and to perform downlink transmission processing. <P>COPYRIGHT: (C)2012,JPO&INPIT |
