6.1.5 Test Model for NB-IoT guard band operation

36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS

The physical channels for transmitter tests shall be configured according to E-TM1.1 on all E-UTRA carriers and N-TM on all NB-IoT carriers.

For guard band transmitter tests, NB-IoT PRB is placed closest to E-UTRA PRBs in the E-UTRA carrier containing the NB-IoT PRB.

The power for E-UTRA PRB and NB-IoT PRB is set by following procedures:

– The average power per PRB over all PRBs (from both NB-IoT and the E-UTRA carrier containing the NB-IoT PRB) is calculated according to manufacturer’s declared rated output power (P_rated,c);

Average power per PRB (P_avg) = P_rated,c / (N_RB + 1) [W]

– The power of boosted NB-IoT PRB (P_NB-IoT) is calculated according to manufacturer’s declared rated NB-IoT maximum power dynamic range (X dB >= 6 dB)

Power per boosted NB-IoT PRB (P_NB-IoT) = P_avg * 10^(X/10) [W]

– The remaining power is allocated to E-UTRA PRBs.

Power per E-UTRA PRB = (P_rated,c – P_NB-IoT) / N_RB [W]