BASEBAND RECOVERY IN WIRELESS NETWORKS, BASE TRANSCEIVER STATIONS, AND WIRELESS NETWORKING DEVICES

摘要

Baseband recovery in wireless networks, base transceiver stations, andwireless networking devices may beimplemented to minimize the number of timing symbols while at the same timeenabling wireless devices to use a relatively lowper-symbol sampling rate, so that minimal processing is required to implementthe timing recovery. In one embodiment, a relativelylow number of samples is taken per expected symbol interval during thetraining sequence. A subset of the samples is selected andprocessed to determine error signals for each of the samples. The errorsignals are multiplied by the expected symbol and summedto form an error signal. The error signal is used to adjust the set of samplesthat will be used and processed in connection withsubsequent symbols. The error signal is also used to interpolate betweenavailable samples to infinitesimally approach the point ofmaximum eye opening.