Radio Wave Propagation Scene Partitioning for High-Speed Rails

Table 1

Radio wave propagation scene partitioning for HSR.

Scenarios	Definitions	Sub scenarios	LOS/NLOS	Speed (km/h)	Special propagation mechanisms	Notes
S1	Viaduct	Viaduct-1a	LOS	0–350
		Viaduct-1b	LOS	0–350
S2	Cutting		LOS	0–350
S3	Tunnel		LOS	0–250	Guide effect
		Station-4a: medium- or small-sized station	LOS/NLOS	0–80
S4	Station	Station-4b: large station	LOS/NLOS	0–80
		Station-4c: marshaling station and container depot	LOS	0–80
S5	Water	Water-5a: river and lake areas	LOS	0–350
		Water-5b: sea area	LOS	0–350
S6	Urban		LOS	0–350
S7	Suburban		LOS	0–350
S8	Rural		LOS	0–350
S9	Mountain	Mountain-9a: normal mountain	NLOS	0–150
		Mountain-9b: far mountain	LOS	0–350		Long delay clutter
S10	Desert		LOS	0–350	Diffuse reflection
S11	Combination scenarios	Combination scenario-11a: tunnel group	LOS	0–250
		Combination scenario-11b: cutting group	LOS	0–350
S12	In-carriage	In-carriage-12a: relay transmission	LOS/NLOS	0–5
		In-carriage-12b: direct transmission	NLOS	0–350	Penetration loss