| 摘要 |
<p>A method for synchronising a receiving device with a transmitting device in a wireless communication network comprising forming a synchronisation sequence that has a frequency spectrum comprising peaks at multiple discrete fundamental frequencies, a signal power of the synchronisation sequence being concentrated at those frequencies, and transmitting said synchronisation sequence from the transmitting device to the receiving device. The peaks may be equally spaced and may contain substantially the same signal power. The frequency spectrum of the synchronisation sequence may have a comb-like structure. The sequence may be such that the peaks are arranged in a pattern known to the receiving device. The synchronisation sequence may be a periodically repeating block of N samples. Harmonics of the fundamental frequencies may be avoided in the synchronisation sequence using filtering. A transmitting device-dependent frequency offset may also be applied to the synchronisation sequence. The synchronisation sequence may be a frame synchronisation sequence. A method of synchronising a receiving device to a transmitting device using multiple peaks arranged in a pattern known to the receiving device is also described. A plurality of sets of candidate frequencies may be determined and synchronisation determined using signal powers of the candidate frequency sets.</p> |
