Overcoming human body tissue attenuation and multipath fading with LE Coded PHY.
The human body absorbs 2.4 GHz RF energy, causing up to 40 dB of signal attenuation when the patient rolls over in bed. Forward Error Correction (FEC) in LE Coded PHY maintains connection reliability without boosting RF transmit power.
Periodic advertising with response (PAwR) allows patches to transmit synchronized bursts while spending 99.8% of time in deep microampere sleep states.