Techniques are presented for a first device configured to be in communication with a second device in a digital communication system to receive an orthogonal frequency division multiplexed (OFDM) ranging signal from the second device. The OFDM ranging signal comprises a plurality OFDM symbols that encode a known bit sequence within a subset of available OFDM communication subcarriers and a subset of available time slots. The OFDM ranging signal is analyzed to determine a timing offset for the second device due to a time for signals to travel between the first device and second device over a communication channel. A message is transmitted from the first device to the second device, the message including information configured to indicate the timing offset.