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Comprehensive interpretation of NB-IoT
Source:Original | Author:C&T RF Antennas Inc | Publish time: 2018-11-03 | 2540 Views | Share:


2, China Mobile

For China Mobile, its public IoT platform has been in commercial use since the end of November 2014. As of June this year, users have exceeded 27 million. At present, China Mobile is accelerating the promotion of the global convergence of standards and narrow-band IoT industry maturity and IoT application innovation, building an IoT open laboratory to promote the mature development of chips and modules, and creating a low-cost, low power consumption, wide coverage, and high Reliable public Internet of Things, and strive to achieve commercial use in 2017. In order to build the NB-IoT Internet of Things, China Mobile is expected to obtain an FDD license from the end of 2016 to mid-2017, and will allow it to re-tune the existing 900MHz and 1800MHz frequency bands.


3, China Unicom

In July 2015, China Unicom established and opened the world’s first NB-IoT new technology demonstration site; in the first half of 2016, Shanghai Disney IoT started commercial use; in 2015-2016, piloted and tested NB-IoT service, and currently, The NB-IoT commercial deployments in key cities (Beijing, Shanghai, Guangzhou, Shenzhen, Yinchuan, Changsha, and Fuzhou) are being promoted, and they are planned to be commercialized in 2017. In 2018, they will begin to fully promote commercial deployments within the country.


China Unicom is deployed in the 900MHz and 1800MHz bands for NB-IoT and VoLTE. Using DSSS dynamic spectrum solution at 900 MHz, 5MHz bandwidth LTE is deployed in 1800MHz continuous coverage area. In the area without continuous coverage of 1800MHz, the bandwidth is automatically narrowed down to 3MHz, but the center frequency remains unchanged and both sides are free. Spectrum, automatic deployment of 14 GSM frequency points.


From a horizontal perspective, there are manufacturers of different technical standards such as NB-IoT, LoRa, Sigfox, ZETA, and Ingenu in each link of the industry chain.


Speaking of these, we have to revisit the previous LPWAN. NB-IoT, LoRa, Sigfox, ZETA, Ingenu are all branches of LPWAN.