| 摘要 |
PROBLEM TO BE SOLVED: To accurately estimate a data-to-pilot ratio (D2P), which is a ratio of transmit power for data to transmit power for a pilot, when it is not known.SOLUTION: A terminal receives (312) a pilot sent to multiple terminals and receives (314) data sent to the terminal. The terminal estimates (316) channel gain and noise variance on the basis of the received pilot, and then estimates (318) a data-to-pilot ratio on the basis of the received data and the estimated channel gain and noise variance. The terminal derives (320) LLRs for code bits on the basis of the received data and the estimated data-to-pilot ratio, and then decodes (322) the LLRs to obtain decoded data. |
