Reception of signals for ranging, timing, and data transfer

A device comprising:

• an antenna to receive a signal encoding timing information for one or more of positioning, navigation, and timing, the signal comprising a pulse group comprising a number of ranging pulses and a number of data pulses, respective ones of the number of ranging pulses having a phase of either a positive-going phase or a negative-going phase, wherein the phases of the respective ones of the number of ranging pulses are encoded according to a pulse-phase signature, respective ones of the number of data pulses having a phase of either a positive-going phase or a negative-going phase, wherein data is encoded in data symbols correlated to sets of phases of the data pulses;
• a memory to store a table that correlates data symbols to sets of phases of data pulses;
• a processor to:
• validate a transmitter of the signal based on comparing observed phases of the respective ones of the number of ranging pulses with the pulse-phase signature of the transmitter;
• decode respective ones of the data symbols based on comparing observed phases of the respective ones of the number of data pulses to entries in the table that correlates the data symbols to the sets of phases of data pulses;
• obtain data at least partially responsive to the decoded data symbols;
• and
• derive a message from the data.

A method comprising:

• receiving a signal encoding timing information for one or more of positioning, navigation, and timing, the signal comprising a pulse group comprising a number of ranging pulses and a number of data pulses, respective ones of the number of data pulses having a phase of either a positive-going phase or a negative-going phase, wherein data is encoded in data symbols correlated to sets of phases of the data pulses;
• observing phases of the respective ones of the number of data pulses;
• decoding respective ones of the data symbols based on comparing the observed phases to entries in a table that correlates the data symbols to the sets of phases of the data pulses;
• and
• obtaining data at least partially responsive to the decoded data symbols.