5G／NR 物理层 关键时间参数

　　<center>< 38.211 v17.2- Table 4.2-1: Supported transmission numerologies ></center>

　　可以得到如下算式：

　　38.211 - 4.3.1 Frames and subframes defines following Time Units.

　　Parameter / Numerlogy (u)01234Subcarrier Spacing (Khz)153060120240OFDM Symbol Duration (us)66.6733.3316.678.334.17Cyclic Prefix Duration (us)4.692.341.170.570.29OFDM Symbol including CP (us)71.3535.6817.848.924.46 < 38.300-Table 5.1-1: Supported transmission numerologies and additional info.>

　　NumerologySubcarrier Spacing(kHz)CP typeSupported for Data(PDSCH, PUSCH etc)Supported for Sync(PSS,SSS,PBCH)PRACHN/A1.25NoNoLong PreambleN/A5NoNoLong Preamble015NormalYesYesShort Preamble130NormalYesYesShort Preamble260Normal,ExtendedYesNoShort Preamble3120NormalYesYesShort Preamble4240NormalNoYes5480NormalYesYes6960NormalYesYes

　　引自：ShareTechnote