| 摘要 |
PROBLEM TO BE SOLVED: To provide a channel information feedback method, a precoding method, a receiving station, and a transmitting station. SOLUTION: The first sub-band in sub-band sequence formed of every sub-bands or partially continuous sub-bands in the present data frame for previously storing a first aggregation and a second aggregation corresponding to each element of the first aggregation is defined as the heading sub-band. The receiving station selects an RI/PMI from the second aggregation corresponding to the RI/PMI selected for a preceding adjacent sub-band for each sub-band other than the heading sub-band for selecting an RI/PMI from the first aggregation for the heading sub-band. The receiving station also conducts feedback, to the transmitting station, of the RI/PMI of the heading sub-band for defining an index in the second aggregation corresponding to the RI/PMI selected for the preceding adjacent sub-band of the selected RI/PMI and an index corresponding to the other each sub-band. Feedback overhead is lowered. COPYRIGHT: (C)2011,JPO&INPIT |
