Analysis Of NB-IoT Network Architecture

- Sep 26, 2018 -

The advantages of NB-IoT:

1. Strong links In the same base station, NB-IoT can provide 50-100 times more access than existing wireless technologies. One sector supports 100,000 connections, enabling low latency sensitivity, ultra-low device cost, low device power consumption, and optimized network architecture. For example, limited to bandwidth, operators to the home of each router only open 8-16 access ports, and a family often have many phones, notebooks, tablets, in the future to realize the whole House smart, hundreds of sensor devices need networking is a tricky problem.

NB-IoT is an easy way to meet the needs of a large number of devices in future smart homes.

2. High coverage NB-IoT has a strong indoor coverage capability and boosts 20dB gain over LTE, equivalent to a 100 times-fold increase in coverage area capability. Not only can meet the needs of such a wide range of rural areas, for the plant, underground garage, manhole cover, such as the requirements of deep coverage of the application is also applicable.

Take the well cover monitoring as an example, in the past, the way of GPRS needs to extend an antenna, the traffic is very easy to damage, and NB-IoT as long as the deployment of appropriate, it can be a good solution to this problem.

3. Low power consumption Low-power features are an important indicator of IoT applications, especially for devices and places where batteries cannot be changed frequently, such as sensor monitoring devices housed in remote areas of Alpine wilderness, which are unlikely to be recharged as smartphones, and years of battery life are the most essential requirements.

NB-IoT focuses on small data volumes, small-rate applications, so NB-IoT equipment consumes very little power, and the device life can rise from the last few months to a few years.

4. Low cost Compared to Lora, NB-IoT does not need to be re-built, and RF and antennas are basically multiplexed. Take China Mobile as an example, 900MHZ has a relatively wide band, only need to clear out part of the 2G band, you can directly carry out LTE and NB-IoT deployment simultaneously. Low-speed, low-power, and low-bandwidth also give NB-IoT chips and modules a cost-efficient advantage. The module is expected to cost no more than $5.