CPC H04L 27/26025 (2021.01) [H04L 5/005 (2013.01); H04L 5/0007 (2013.01); H04W 8/22 (2013.01); H04B 7/18523 (2013.01)] | 30 Claims |
1. A method of enabling joint communication and sensing (JCS) by a non-terrestrial network (NTN), the method comprising:
transmitting, with an NTN platform, radio frequency (RF) signals toward earth, the RF signals comprising an orthogonal frequency-division multiplexing (OFDM) waveform with a plurality of symbols including a JCS symbol and one or more non-JCS symbols, wherein:
the RF signals are incident on an area of the earth defining a footprint, and
a duration of a cyclic prefix (CP) of the JCS symbol is a function of a width of the footprint; and
receiving, at the NTN platform, one or more reflections of the JCS symbol.
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