| abstract |
A pre-coding matrix set determination method, a parameter indication information sending method and an apparatus, comprising: a first network device determining a parameter used for determining a pre-coding matrix set, wherein the parameter comprises at least one of a phase parameter, an amplitude parameter, a number of vectors in the pre-coding matrix set, a number of vectors in a first codebook set in a dual-codebook feedback and a number of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixedly unchanged; and using the parameter to determine the pre-coding matrix set, wherein the pre-coding matrix set comprises at least one pre-coding matrix. The use of the present scheme improves flexibility in feeding back a pre-coding matrix instruction. |