Posted by: Pdfprep
Post Date: December 15, 2020
Regarding the technical characteristics of the NB-IoT air interface, which of the following descriptions are correct? (Multiple choice)
A . Uplink adopts SC-FDMA with a bandwidth of 3.75kHz or 15kHz
B . Downlink adopts OFDMA with a bandwidth of 15 kHz
C . Downlink adopts OFDMA with a bandwidth of 3.75kHz
D . Uplink adopts SC-FDMA with the bandwidth is fixed at 3.75kHz
Answer: AB
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