| 摘要 |
<p>A method for detecting symbol timing in on OFDMA system is described, wherein a sub-channel comprises several groups (1) of sub carriers (2) spread over the frequency bond, each group (1) of sub carriers (2) comprising at least one pilot carrier (4), said method comprising the steps of:
- correcting the received pilot sub carriers belonging to the same sub-channel (4) with a set of different time shifts,
- determining a mean pilot from all corrected pilot sub carriers (4) for each time shift,
- calculating the absolute value of said mean pilot for each time shift,
- selecting the time shift showing the maximum absolute value, and
- applying said time shift to correct received data sub carriers (5) on said sub-channel. Furthermore a OFDMA base station to be used to execute the method mentioned above, plus a computer program product causing a computer to perform said method is described.</p> |
