What does the MCL of NB-IoT mean?

The MCL of NB-IoT refers to the coverage performance . NB is 164 dB MCL, which is 20 dB stronger than GPRS. (Enhanced power spectral density by 7db, retransmission by 12db, multi-antenna gain 0-3db). The outdoor single-site coverage distance can reach 2300 meters, which is 4 times the coverage distance of LTE 1.8G/GPRS. Indoor coverage. The high, middle, and bottom floors of buildings within 1 kilometer from the base station have signal coverage. They have certain coverage for elevators and basements. Compared with GPRS, they can penetrate one more wall. The specific test point depth is related.