| 摘要 |
Techniques for supporting MIMO transmission with layer permutation are de scribed. In one aspect, multiple codewords may be generated for transmission from multiple antennas (e.g., virtual antennas), with the number of codewor ds being less than the number of antennas. Each codeword may be mapped acros s the multiple antennas. Two codewords may be generated. For rank 3, the fir st codeword may be mapped to one layer (or one antenna on each subcarrier), and the second codeword may be mapped to two layers (or two antennas on each subcarrier). For rank 4, each codeword may be mapped to two layers. In anot her aspect, a base CQI indicative of an average signal quality may be determ ined. A delta CQI indicative of improvement over the average signal quality may also be determined. In yet another aspect, selection may be performed wi th different penalty factors for different ranks or number of codewords.</SD OAB>
|
