Patent ID: 8848827

Claim:
A method of communicating a chirp signal from a transmitter suitable for receipt at a proximal receiver and a distal receiver, the chirp signal comprising a plurality of packets, each packet comprising at least one symbol, each symbol comprising one or more chirps, the method comprising: generating the chirp signal by interleaving a plurality of packets of a first set of packets with a plurality of packets of a second set of packets, wherein: (i) the first set of packets is encoded with first data, each packet comprising one or more symbols having a first time period t 1 , and (ii) the second set of packets is encoded with second data, each packet comprising one or more symbols having a second time period t 2 , where t 1 <t 2 , such that the ratio of packets of the first set of packets to packets of the second set of packets of the chirp signal is greater than 1, and transmitting the generated chirp signal, wherein each packet in the transmitted chirp signal is encoded with the same data.