Notation

Meaning

Recommended Values

${\tau }_{WA}$

Length of advertising duration

≤10 ms

${\tau }_{AI}$

Length of advertising interval

[20, 10, 240] ms

${\tau }_{SI}$

Length of scanning interval

[2.5, 10, 240] ms

${\tau }_{SW}$

Length of scanning window

[2.5, 10, 240] ms

$T_S$

Time for discovery packets exchange

≤1.228 ms

${\tau }_{S{W}^{\prime }}$

Length of effective scan window

${\tau }_{S{W}^{\prime }}={\tau }_{SW}-T_S$

$t_0$

Arrival time of ch37 ADV_IND packet

${\alpha }_1,{\alpha }_2,{\alpha }_3$

Successful discovery probability on channel 37, 38, 39