(m) 928 - 952 MHz (n) 2400 2483.5 MHz – (o) 4940 4990 MHz – (p) 5250 5350 MHz – (q) 5470 5725 MHz – (r) 5650 5925 MHz – (o) 5725 5850 MHz – From the above list, bands (e) and (j) (n) may be occupied by different 802.15.4p PHYs. These are listed – in Table 1, below. Table 1 Frequency Bands for 802.15.4p PHYs Frequency Band (MHz) IEEE 802.15.4p PHYs RCC LMR RCC DSSS BPSK RCC Ranging 160.170 161.580 X – 216 217 X – 217 220 X – 220 222 X – 450 470 X – 769 775 X – 799 805 X – 806 821 / 851 866 X – – 863 870 X – 896 901 / 935 940 X – – 901 902 X – 902 928 X X X – 928 952 X – 4940 4990 X X – 5250 5350 X X X – 5470 5725 X X X – 5650 5925 X X X – 5725 - 5850 X X X 2.2 Overview of Coexistence Mechanisms in 802.15.4 and 802.15.4p The importance of a coexistence mechanism in 15.4p is manifold. 15.4p specifies three alternative PHYs that shall be able to coexist with each other if operating co-located in the same frequency band. 15.4p also has to share multiple frequency bands and coexist with dissimilar 802 systems.
(m) 928 - 952 MHz (n) 2400 – 2483.5 MHz (o) 4940 – 4990 MHz (p) 5250 – 5350 MHz (q) 5470 – 5725 MHz (r) 5650 – 5925 MHz (o) 5725 – 5850 MHz From the above list, bands (e) and (j) – (n) may be occupied by different 802.15.4p PHYs. These are listed in Table 1, below. Table 1 Frequency Bands for 802.15.4p PHYs Frequency Band (MHz) IEEE 802.15.4p PHYs RCC LMR RCC DSSS BPSK RCC Ranging 160.170 – 161.580 X 216 – 217 X 217 – 220 X 220 – 222 X 450 – 470 X 769 – 775 X 799 – 805 X 806 – 821 / 851 – 866 X 863 – 870 X 896 – 901 / 935 – 940 X 901 – 902 X 902 – 928 X X X 928 – 952 X 4940 – 4990 X X 5250 – 5350 X X X 5470 – 5725 X X X 5650 – 5925 X X X 5725 - 5850 X X X 2.2 Overview of Coexistence Mechanisms in 802.15.4 and 802.15.4p The importance of a coexistence mechanism in 15.4p is manifold. 15.4p specifies three alternative PHYs that shall be able to coexist with each other if operating co-located in the same frequency band. 15.4p also has to share multiple frequency bands and coexist with dissimilar 802 systems.