NB-IoT (also referred to as Narrowband IoT or NB1) is another new mobile data standard for the growing LPWA market, part of the latest Release (13) from the 3GPP cellular standards body. Similar to LTE-M, NB-IoT is optimized for lower-bandwidth applications (data rates up to 250Kbps) and ideal for devices that sleep most of the time, waking up to report their data periodically. NB-IoT uses a simple architecture based on single carrier frequency division multiple access and a DSSS modulation scheme, which helps decrease hardware cost and complexity. It supports ultra-long battery life (up to 10 years), extended range (up to 7x better than current LTE technologies) and better building/obstacle penetration for a wide range of applications and use-cases. Some example applications include remote/sleepy industrial sensors, commercial meters, precision agriculture sensors, and a wide range of smart city applications.
NB-IoT is not considered an LTE technology. It branches out of the LTE framework, and can be deployed in a number of different ways, such as:
Initial NB-IoT deployments in 2017 and 2018 will be primarily in Europe and parts of Asia. Since carriers in the US have already invested heavily in LTE-M infrastructure updates, it is unlikely they will deploy NB-IoT networks in the short-term future.
NB-IoT vs. LTE-M
Key Benefits of NB-IoT
Digi XBee Cellular NB-IoT
Digi has successfully completed testing of the XBee Cellular NB-IoT in Europe, in partnership with Vodafone. Engineering sample kits are expected to be available by the end of July, customers interested in early testing should contact Digi for more details.