14.4.1.3 Symbol Period

Within IEEE 802.15.4 and, accordingly, within this document, time references are often specified in units of symbol periods, leading to a PHY mode independent description. The table below shows the duration of the symbol period.

Table 14-31. Duration of the Symbol Period
Modulation	PSDU Data Rate [kb/s]	Duration of Symbol Period [µs]
BPSK	20	50
BPSK	40	25
O-QPSK	100, 200, 400	40
O-QPSK	250, 500, 1000	16

For the proprietary High Data Rate Modes, the symbol period is (by definition) the same as the symbol period of the corresponding base mode.

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