In recent years, suzhou branch of China telecom has actively implemented the national "Internet +" strategy and accelerated the construction of new information infrastructure. As a key project of "smart Suzhou " in 2017, Suzhou finished 2400 stations in at the end of June, realizing a complete coverage of 800 m NB – IoT. on the same day, Tianyi cloud 3.0, a project of Suzhou branch is also put into operation ,which gives a strong support to the build of ” Smart Suzhou”