6.1.4 Data content of Physical channels and Signals for N-TM
36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS
Data content of physical channels and signals for NB-IoT should be fully aligned the specification statement in TS36.211. Detail configuration for the tranmistter characteristic tests are used as follows,
In case multiple NB-IoT carriers are configured with N-TMs, the 
for the nth configured NB-IoT carrier shall be equal to 97+6*n+max(0,m-1), where m is equal to 0 for stand-alone NB-IoT carrier or equal to the Cell ID of the E-UTRA carrier containing the in-band/guard-band NB-IoT carrier.
Initialization of the scrambler and RE-mappers as defined in TS36.211 use the following additional parameters:
– 
= 0
– The N-TM shall start when 
= 0
– p = 1000 shall be used for the generation of the N-TM data
– 
= 103 for the lowest configured stand-alone NB-IoT carrier or in-band/guard-band NB-IoT carrier(s) within the lowest E-UTRA carrier, = 109 for the 2nd lowest configured NB-IoT stand-alone carrier or 110 for the in-band/guard-band NB-IoT carrier(s) within the 2nd lowest E-UTRA carrier,…, 
= 97+6*n+max(0,m-1) for the nth configured NB-IoT stand-alone carrier or in-band/guard-band NB-IoT carrier(s) within the mth E-UTRA carrier
6.1.4.1 Reference signals
Sequence generation, modulation and mapping to REs according to TS36.211, clause 10.2.6.
6.1.4.2 Synchronization signals
Sequence generation, modulation and mapping to REs according to TS36.211, clause 10.2.7.
6.1.4.3 NPBCH
– 100 REs (200 bits) are available for NPBCH for the duration of the NB-IoT test model (1 frame, 10 ms)
– Generate 200 bits of ‘all 0’ data
– Initialize scrambling generator for each invocation of the N-TM, i.e. set always 
= 0
– Perform scrambling according to TS36.211, clause 10.2.4.1
– Perform modulation according to TS36.211, clause 10.2.4.2
– Perform mapping to REs according to TS36.211, clause 10.2.4.4
6.1.4.4 NPDCCH
– NPDCCH is on the first of all available subframes which not transmit synchronization signals and NPBCH in the duration of the NB-IoT test model. The number of available bits (304 bits for stand-alone and guard band operation, or 200 bits for in-band operation) for NPDCCH is depended on the higher layer parameter operationModeInfo according to TS36.213, clause 16.6.1.
– Generate the amount of NPDCCH bits according to ‘all 0’ data
– Perform NPDCCH scrambling according to TS36.211, clause 10.2.5.2
– Perform modulation according to TS36.211, clause 10.2.5.3
– Perform mapping to REs according to TS36.211, clause 10.2.5.5
6.1.4.5 NPDSCH
– NPDSCH is on the rest of subframes in the duration of NB-IoT test model. The number of available bits (304 bits for stand-alone and guard band operation or 200 bits for in-band operation for QPSK PRBs; the number of bits is doubled for 16QAM PRBs) in each subframe for NPDSCH is depended on the higher layer parameter operationModeInfo according to TS36.213, clause 16.6.1. Unless otherwise stated, QPSK PRBs shall be used.
– Generate the required amount of bits according to ‘all 0’ data
– N-TM utilize 1 user NPDSCH transmissions indicated by 
=1000
– Perform user specific scrambling according to TS36.211, clause 10.2.3.1. This makes use of 
.
– Perform modulation of the scrambled bits with the modulation scheme defined for each user according to TS36.211, clause 10.2.3.2
– Perform mapping of the complex-valued symbols to PRBs according to TS36.211, clause 10.2.3.4