January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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LTE Cat-NB
Cat-NB, also known as NB-IoT, NB1, or Narrow Band IoT, is another LPWAN protocol governed by the 3GPP in release 13. Like Cat-M1, Cat-NB operates in the licensed spectrum. Like Cat-M1, the goal is to reduce power (10-year battery life), extend coverage (+20 dB), and reduce cost ($5 per module). Cat-NB is based on the Evolved Packet System (EPS) and optimizations to the Cellular Internet of Things (CIoT). Since the channels are much narrower than even the 1.4 MHz Cat-M1, cost and power can be reduced even further with the simpler designs of the analog-to-digital and digital-to-analog converters.
Significant differences between Cat-NB and Cat-M1 include:
- Very narrow channel bandwidth: As with Cat-M1, which reduced the channel width ...
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