Oversampled multiple-correlator symbol synchronization

A method, comprising:

• receiving, at a receiver via an antenna, a signal comprising a plurality of symbols, the plurality of symbols received at a symbol rate;
• amplifying the signal at an amplifier circuit;
• converting, after amplifying the signal, the signal to a baseband signal based at least in part on receiving the signal;
• converting, at an analog-to-digital converter, the baseband signal to samples at a sample rate greater than the symbol rate and transmitting respective interleaved subsets of the samples to each of a plurality of correlators, wherein each respective interleaved subset of the samples is distinct for each of the plurality of correlators based at least in part on the sample rate being greater than the symbol rate;
• cycling power of the amplifier circuit at the sample rate;
• generating respective outputs at the plurality of correlators based at least in part on the respective interleaved subsets of the samples;
• determining that at least one output of a correlator of the plurality of correlators satisfies a threshold based at least in part on generating the respective outputs;
• and
• generating a wakeup command based at least in part on determining that the at least one output of the correlator satisfies the threshold.