| 摘要 |
<p>A method for estimating noise power in a received signal that was transmitted using an orthogonal frequency division multiple access (OFDMA) modulation scheme in which patterns of pilot symbols are transmitted during OFDM symbol periods of the transmitted. signal, the method comprising: interleaving a de-patterned pilot symbol that was transmitted in an OFDM symbol period of the transmitted signal with a de-patterned pilot symbol that was transmitted in a previous OFDM symbol period of the transmitted signal to generate an interleaved de-patterned pilot symbol; filtering the de-patterned interleaved pilot symbol to remove a signal component of the interleaved pilot symbol to leave a noise component of the interleaved de-patterned pilot symbol and processing the noise component generated by the filtering to generate an estimate of the noise power in the interleaved de-patterned pilot symbol.</p> |
