SINGLE CARRIER FREQUENCY DOMAIN EQUALIZER TIME SYNCHRONIZATION IN A BROADBAND TRANSCEIVER

摘要

A method for operating a receiver in a wireless communication system to synchronize the receiver to a received signal. The received signal is preamble correlated to identify a preamble portion of the signal. Portions of the received signal near the identified preamble portion are processed to determine signal-distorting channel characteristics, such as multipath channel delay spread, of the channel over which the received signal propagated. A digital filter is configured based on the determined channel characteristics to compensate for the signal-distorting channel characteristics, and the received signal is filtered with the configured digital filter. The filtered received signal is second preamble correlated with a second preamble that is different than the first preamble to produce a second preamble correlation. The second preamble correlation is processed to identify delay in the filtered received signal. Portions of the filtered received signal are identified and processed based on the identified delay.

主权项

1. A method for operating a receiver in a wireless communication system to synchronize the receiver to a received signal, comprising:
preamble correlating the received signal to identify a preamble portion of the signal; processing portions of the received signal, optionally portions near the identified preamble portion, to determine signal-distorting channel characteristics of the channel over which the received signal propagated, wherein the channel characteristics optionally include multipath channel delay spread; configuring a digital filter based on the determined channel characteristics to compensate for the signal-distorting channel characteristics; filtering the received signal with the configured digital filter; second preamble correlating the filtered received signal to produce a second preamble correlation; processing the second preamble correlation to identify delay in the filtered received signal; and identifying and processing portions of the filtered received signal based on the identified delay.