7.1.4 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 7-2. Duration of the Symbol Period
Modulation PSDU Data Rate [kb/s] Duration of Symbol Period [µs]
BPSK 20 50
40 25
O-QPSK 100, 200, 400 40
250, 500, 1000 16
  1. For the proprietary High Data Rate Modes, the symbol period is (by definition) the same as the symbol period of the corresponding base mode.