Systems and methods for measuring wireless uplink signal quality

A system comprising:

• a wireless communication interface of a user device that receives a Project 25 (P25) Harmonized-Continuous Phase Modulation (H-CPM) uplink waveform;
• and
• a processor coupled to the wireless communication interface,
• wherein the processor is configured to sample the P25 H-CPM uplink waveform at a sampling rate to identify a first plurality of samples,
• wherein the processor is configured to correlate the first plurality of samples with a set of known synchronization samples to identify a signal sample time synchronization for the P25 H-CPM uplink waveform and cross-correlation output,
• wherein the processor is configured to calculate a phase angle for the P25 H-CPM uplink waveform,
• wherein the processor is configured to use the phase angle to rectify the P25 H-CPM uplink waveform to match a pre-defined start state of a state transition diagram,
• wherein the processor is configured to use the state transition diagram and the P25 H-CPM uplink waveform as rectified to generate a second plurality of samples,
• wherein the second plurality of samples correspond to a plurality of possible paths through the state transition diagram,
• wherein the processor is configured to use the first plurality of samples and the second plurality of samples to select one of the plurality of possible paths through the state transition diagram as a demodulation path,
• wherein the processor is configured to iterate the P25 H-CPM uplink waveform through the demodulation path to demodulate the P25 H-CPM uplink waveform,
• wherein the processor is configured to use the cross-correlation output to compare the P25 H-CPM uplink waveform as demodulated to a set of known synchronization symbols to calculate a frame bit error rate (FBER) measurement, and
• wherein the processor is configured to use the FBER measurement to determine whether the P25 user equipment was successfully deployed.