Baseband recovery in wireless networks, base transceiver stations, and wireless networking devices

A method of operating a base transceiver station in a wireless network, the method comprising processing a training sequence of training symbols to recover timing frequency and timing phase from the training sequence by:

• sampling a received training sequence at a relatively low number of times during each estimated training symbol interval to obtain a relatively low number of samples for each estimated training symbol interval;
• selecting a contiguous subset of the relatively low number of samples;
• obtaining a first derivative associated with the subset;
• multiplying the first derivative by an expected data symbol to obtain an error signal for the training symbol interval;
• accumulating error signals from successive training symbol intervals to form an accumulated error signal;
• using a first portion of the accumulated error signal to adjust which of the relatively low number of samples are to be included in the contiguous subset in connection with processing a subsequent training symbols;
• and
• using a second portion of the accumulated error signal to determine a likely position of a location of maximum eye opening to estimate the tinting phase from the training sequence.

A method of operating wireless networking device for use in a wireless communication network, the method comprising processing a training sequence of training symbols to recover timing frequency and timing phase from the training sequence by:

• sampling a received training sequence at a relatively low number of times during each estimated training symbol interval to obtain a relatively low number of samples for each estimated training symbol interval selecting a contiguous subset of the relatively low number of samples;
• obtaining a first derivative associated with the subset;
• multiplying the first derivative by an expected data symbol to obtain an error signal for the training symbol interval;
• accumulating error signals from successive training symbol intervals to form an accumulated error signal;
• using a first portion of the accumulated error signal to adjust which of the relatively low number of samples are to be included in the contiguous subset in connection with processing a subsequent training symbols;
• and
• using a second portion of the accumulated error signal to determine a likely position of a location of maximum eye opening to estimate the timing phase from the training sequence.