Radio Propagation Measurements in the Indoor Stairwell Environment at 3.5 and 28 GHz for 5G Wireless Networks

Table 2

Path loss model parameters.

Frequency (GHz)	Model	PLE for CI	FI () (dB)	CIF ()	(dB)
		for FI
		for CIF
3.5	CI	2	—	—	0.5
	FI	1.9	36.6	—	0.4
	CIF	1.9	—	0.05	0.9
28	CI	1.9	—	—	0.5
	FI	1.6	57.3	—	0.3
	CIF	1.9	—	0.05	0.9