32. Wake-Up Radio (WUR) PHY specification
32.1 Introduction
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32.2 WUR PHY service interface
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32.3 WUR PHY
32.3.1 Introduction
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32.3.2 WUR PPDU format
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32.3.3 Transmitter block diagram
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32.3.4 Overview of the PPDU encoding process
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32.3.5 WUR modulation and coding schemes (WUR-MCSs)
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32.3.6 Timing related parameters
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Table 32-1 (Timing-related constants) defines the timing-related parameters for WUR PPDU formats.
Table 32-2 (Frequently used parameters)Table 32-1— Timing-related constants	
Parameter	Value	Description	
	312.5 kHz	Subcarrier frequency spacing for WUR PPDU	
TDFT,WUR	3.2 µs	IDFT/DFT period for the WUR PPDU	
TGI,WUR	0.8 µs	Guard interval duration for the WUR PPDU	
TGI,L-LTF	1.6 µs	Guard interval duration for the L-LTF field	
TSYM0,ON	4 µs	ON duration of WUR MCS0 OOK symbol in WUR Data field	
TSYM0,OFF	4 µs	OFF duration of WUR MCS0 OOK symbol in WUR Data field	
TSYM0	4 µs = TSYM0,ON = TSYM0,OFF 	Duration of WUR MCS0 OOK symbol in WUR Data field	
TSYM1,ON	2 µs	ON duration of WUR MCS1 OOK symbol in WUR Data field	
TSYM1,OFF	2 µs	OFF duration of WUR MCS1 OOK symbol in WUR Data field	
TSYM1	2 µs = TSYM1,ON = TSYM1,OFF 	Duration of WUR MCS1 OOK symbol in WUR Data field	
TSYM	TSYM0 or TSYM1 depending on WUR MCS	Duration of OOK symbol in WUR Data field	
TSYNC	TBD	Duration of OOK symbol in WUR SYNC field	
TL-STF	8 µs = 10 × TDFT,WUR /4	Non-HT Short Training field duration	
TL-LTF	8 µs = 2 × TDFT,WUR + TGI,L-LTF	Non-HT Long Training field duration	
TL-SIG	4 µs	Non-HT SIGNAL field duration	
TWUR-MARK	4 µs	WUR MARK field duration	
TWUR-SYNC0	64 µs	WUR SYNC field duration for WUR MCS0	
TWUR-SYNC1	128 µs	WUR SYNC field duration for WUR MCS1	
 defines parameters used frequently in Clause 32 (Wake-Up Radio (WUR) PHY specification).
Table 32-2— Frequently used parameters	
Symbol	Explanation	
NSPDB	Number of OOK symbols per data bit.
For WUR MCS0, NSPDB =4. 
For WUR MCS1, NSPDB =2.	
NSPCB	Number of OOK symbols per encoded bit. NSPCB =1.	
NCBPDB	Number of coded bits per data bit.
For WUR MCS0, NCBPDB =4.
For WUR MCS1, NCBPDB =2.	
NTX	Number of transmit chains	
NWUR-SYNC	Number of OOK symbols in the WUR SYNC field 	

32.3.7 Mathematical description of signals
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32.3.8 WUR preamble
32.3.8.1 Introduction
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32.3.8.2 Non-WUR portion of WUR format preamble
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32.3.8.3 WUR SYNC field
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32.3.9 WUR Data field
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32.3.10 WUR transmit specification
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32.3.11 WUR receiver specification
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32.3.12 WUR transmit procedure
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32.3.13 WUR receive procedure
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32.4 WUR PLME
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32.5 Parameters for WUR-MCSs
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