F.6 Averaged EVM
36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception
The general EVM is averaged over basic EVM measurements for n slots in the time domain.
,
where n is
n = 20 for PUCCH, PUSCH, PSDCH, PSCCH, and PSSCH,
n = 48 for PBSCH.
The EVM requirements shall be tested against the maximum of the RMS average at the window W extremities of the EVM measurements:
Thus 
is calculated using 
in the expressions above and 
is calculated using 
.
Thus we get:
The calculation of the EVM for the demodulation reference signal, 
, follows the same procedure as calculating the general EVM, with the exception that the modulation symbol set 
defined in clause F.2 is restricted to symbols containing uplink demodulation reference signals.
The basic 
measurements are first averaged over 20 slots in the time domain to obtain an intermediate average 
.
In the determination of each 
, the timing is set to 
if 
, and it is set to 
otherwise, where 
and 
are the general average EVM values calculated in the same 20 slots over which the intermediate average 
is calculated. Note that in some cases, the general average EVM may be calculated only for the purpose of timing selection for the demodulation reference signal EVM.
Then the results are further averaged to get the EVM for the demodulation reference signal, 
,
The PRACH EVM, 
, is averaged over two preamble sequence measurements for preamble formats 0, 1, 2, 3, and it is averaged over 10 preamble sequence measurements for preamble format 4.
The EVM requirements shall be tested against the maximum of the RMS average at the window W extremities of the EVM measurements:
Thus 
is calculated using 
and 
is calculated using 
.
Thus we get:
F.6.F Averaged EVM for category NB1
The general EVM for category NB1 is calculated using the procedure defined in Annex F.6 with the exception that the general EVM is averaged over basic EVM measurements for 240/LCtone slots in the time domain, where LCtone = {1, 3, 6, 12} is the number of subcarriers for the transmission.
The calculation of the EVM for the demodulation reference symbols for category NB1 follows the procedure defined for DMRS in Annex F.6 with the exception that the basic EVM DMRS measurements are first averaged over 240/ LCtone slots to obtain the intermediate average EVM.
The calculation of the NPRACH EVM for both formats follows the procedure defined for PRACH in Annex F.6 with the exception that EVM PRACH is averaged over 64 preamble measurements.