Xiaomi has realized IoT network key construction technology

On August 15, Xiaomi officially announced: "With the three certificates complete, the Xiaomi 5G era is now in place! Xiaomi's second 5G flagship phone is about to debut!"

5G mobile phones must have corresponding 5G technology support, and in the 5G system, NB-IOT (cellular-based narrowband Internet of Things) technology is defined. The connection requirements of the Internet of Things are very different from those of traditional cellular networks, and narrowband cellular Internet of Things (NB-IoT) came into being. This emerging technology promoted by the telecommunications industry has the characteristics of wide coverage, multiple connections, low speed, low cost, low power consumption, and excellent architecture, and has great commercial potential.

NB-IoT can be widely used in a variety of vertical industries, such as remote meter reading, asset tracking, smart parking, smart agriculture, etc. NB-IoT is built on cellular networks, consumes only about 180KHz of bandwidth, and can be directly deployed on global mobile communication system networks, universal mobile communication system networks or long-term evolution networks to reduce deployment costs and achieve smooth upgrades.

Accordingly, a large number of devices using NB-IOT technology, namely NB-IOT devices, have also emerged, such as smart meters, smart printers, smart health and medical equipment, etc. However, there is currently no solution for transmitting control signaling from terminals used to manage and control NB-IOT devices to NB-IOT devices.

Regarding NB-IOT technology, Xiaomi applied for an invention patent entitled "A signaling transmission method and device" on April 27, 2017 (application number: 201780000267.2), and the applicant was Beijing Xiaomi Mobile Software Co., Ltd.

Based on the currently disclosed patent information, let us take a look at this signaling transmission method.

If it is a 5G device management method. First, receive the first device information reported by the NB-IOT device after accessing the NB-IOT base station. Among them, the first device information includes the following items: device identification, geographic location information, working frequency band information and device type of the NB-IOT device. Among them, the NB-IOT device can be a smart meter, wearable device, detection alarm system or other types of smart logistics in our lives.

Secondly, the target 5G base station is determined based on the NB-IOT base station side. The target 5G base station is determined by interacting with the 5G base station through the base station interface between itself and the 5G base station, matching the second device information received by the 5G base station with the first device information.

Next, the control signaling sent by the target 5G base station is received. The 5G base station is the 5G base station accessed by the target terminal, and the terminal is a terminal used to manage and control the target NB-IOT device. Finally, the control signaling is sent to the target NB-IOT device so that the target NB-IOT device performs the corresponding operation according to the control signaling.

After understanding the device management method of NB-IOT, let's take a look at its hardware composition.

The above figure is a schematic diagram of the device. This device can be used as an NB-IOT base station. The device includes a processing component, a wireless transmission and reception component, an antenna component, and a signal processing part unique to the wireless interface. One of the processors in the processing component can be used to receive control signals sent by the target 5G base station.

By using the above hardware combination, signaling transmission can be realized. At present, the scale of communication between people has reached its ceiling, and the scale of communication between things has just entered the fast lane of growth. With the opening of emerging markets such as wearables, Internet of Vehicles, and smart watches, concepts such as Industry 4.0, smart cities, and smart agriculture have become a reality, and the era of the Internet of Everything is accelerating. The future of the Internet of Things is full of imagination!