| CPC H04B 7/0639 (2013.01) [H04B 7/0426 (2013.01); H04B 7/0456 (2013.01)] | 20 Claims |

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1. A method, comprising:
reporting, by a first communication node to a second communication node, at least one codeword, a number of antenna ports, a coherence capability of the antenna ports, and a full power transmission mode for the at least one uplink transmission, wherein
the at least one codeword is determined based on the number of antenna ports, the coherence capability, and the full power transmission mode; and
the at least one codeword comprises at least one precoding matrix group or at least one Transmission Precoding Matrix Index (TPMI) group corresponding to the at least one precoding matrix group.
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