LENGTH is the value indicated by Length subfield of the Common Info field in the Trigger frame is the Packet Extension subfield of the Common Info field in the Trigger frame bPE-Disambiguity and are defined in Table 28-9 (Timing-related constants) THE-STF-T, THE-LTF,SYM, TRL-SIG THE-SIG-A The PE Disambiguity subfield of the Packet Extension field shall be set to 1 if the condition in Equation (28- 113) is met, otherwise it shall be set to 0. (28-113) where is the PE field duration TPE is the symbol duration of the Data field as defined in28.3.8 (Timing-related parameters) TSYM TXTIME (in µs) is defined in28.4.2 (TXTIME and PSDU_LENGTH calculation) is 0 when TXVECTOR parameter NO_SIG_EXTN is true and is aSignalExtension as s SignalExtension defined in Table 19-25 (HT PHY characteristics) when TXVECTOR parameter NO_SIG_EXTN is false The receiver computes and using Equation (28-114) and Equation (28-115), respectively. NSYM TPE
LENGTH is the value indicated by Length subfield of the Common Info field in the Trigger frame bPE-Disambiguity is the Packet Extension subfield of the Common Info field in the Trigger frame THE-STF-T, THE-LTF,SYM, TRL-SIG and THE-SIG-A are defined in Table 28-9 (Timing-related constants) The PE Disambiguity subfield of the Packet Extension field shall be set to 1 if the condition in Equation (28- 113) is met, otherwise it shall be set to 0. (28-113) where TPE is the PE field duration TSYM is the symbol duration of the Data field as defined in28.3.8 (Timing-related parameters) TXTIME (in µs) is defined in28.4.2 (TXTIME and PSDU_LENGTH calculation) SignalExtension is 0 s when TXVECTOR parameter NO_SIG_EXTN is true and is aSignalExtension as defined in Table 19-25 (HT PHY characteristics) when TXVECTOR parameter NO_SIG_EXTN is false The receiver computes NSYM and TPE using Equation (28-114) and Equation (28-115), respectively.