LTE-M Whitepaper - Coverage Analysis of LTE-M Category-M1
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The key finding is that LTE-M can realistically support a coverage gain of 21 dB relative to legacy LTE devices, which exceeds
the 18 dB 3GPP target. This 21 dB gain corresponds to a data rate of 1400 bps in downlink and 250 bps in uplink. For IoT
applications that can tolerate lower data speeds and longer acquisition times, a gain of beyond 21 dB can be supported. Also
important to note is that these results are achieved without using eNB power spectral density (PSD) boosting.