In fact, the Internet of Things currently only accounts for about 1% of the network bandwidth. However, the main service networks of the Internet of Things, 3G and 4G networks are designed for high-traffic data connections. The economics of the Internet of Things is a challenge for today's wireless carriers, and in the next decade, with connected devices The number of exponential growth, this problem will only become more serious, which is why a new, cheap IoT private network is needed.
In May of this year, China's 5G promotion group released the "5G wireless technology architecture white paper" and "5G network technology architecture white paper" pointed out that 5G large-scale commercial, to achieve a thousand times increase in data traffic, so that economic life from the past mobile Internet expansion In the field of Internet of Things, realize the “Internet of Everythingâ€. It seems that 5G is the core network model for realizing the Internet of Things in the future.
It is true that the large-scale connection number and low latency of the 5G network make it a good technical guarantee for the connection of objects and objects. However, not all devices require high-bandwidth networking for network transmission. A large number of devices require very little data traffic. In recent years, network research and commercialization of such devices has progressed, and low-power and low-bandwidth such as SigFox and LoRa have been made. The wide area network has entered the commercial deployment, with a large and high bandwidth 4G, 5G equally divided. Whether the Internet of Things requires a dedicated network, and see the following discussion:
Low bandwidth devices require a dedicated network
Today, most Internet appliances on the Internet of Things (IoT) do not require high bandwidth. Network appliances often only share a few bytes of simple data. For example, a sensor that updates the current fuel efficiency of a machine, or the temperature of a commercial refrigeration unit to a computer—and, in terms of the network, is not large.
In fact, the Internet of Things currently only accounts for about 1% of the network bandwidth. However, the main service networks of the Internet of Things, 3G and 4G networks are designed for high-traffic data connections, such as video streaming services and web browsing. In other words, the problem is not from the bandwidth, but the price. Large US wireless carriers need a certain return on investment to continue to build and maintain mobile networks and support the development of the Internet of Things. Today, the benefits of most IoT devices in a month are only a fraction of the revenue generated by a typical smartphone. The economics of the Internet of Things is a challenge for today's wireless carriers, and this problem will only get worse in the next decade as the number of connected devices grows exponentially.
That's why some people, like Google Development Ambassador Don Dodge, think we need a new, cheap IoT private network. Don Dodge believes that although the cost of connecting devices over wireless networks (Wi-Fi) is relatively low, this is not practical because wireless networks (Wi-Fi) are limited to use in home or office environments. Wireless networks (Wi-Fi) should be available everywhere in real life. When leaving the Wi-Fi network coverage, users can only be forced to use traffic data to connect to the broadband network, which is completely uneconomical, especially considering the huge number of IoT devices in the foreseeable future.
The idea of ​​Dodge is probably right. As a leader in the US telecommunications and wireless products and services industry, Qualcomm is supporting a new standard for long-haul, low-power wireless networks. A network like this can help devices stay connected at longer distances and at lower cost, supporting the growing Internet of Things and enabling the Internet of Things to ultimately benefit business customers.
Others commented on the debate about the "new network" from another angle.
Existing networks cannot meet the growing development of the Internet of Things
Cisco predicts that the economic value of the Internet of Things will reach an astonishing $14.4 trillion in 2022, and with the rapid growth of the Internet of Things, we will see a continuous increase in the number of connected bandwidth devices. Wearable devices like Google Glass 2.0, Apple Watch and Digital Signage will continue to enter the market.
As more and more resources are shared, our demand for Internet connectivity will be continuous and stable, and will no longer rely on the current trend of on-demand connectivity. Therefore, some believe that we need to establish a new network for the Internet of Things to more efficiently handle requests that increase due to increased bandwidth.
A French startup called Sigfox strongly supports this view. The company has just announced that it is building a cellular network designed specifically for IoT devices across Belgium. The company's efforts have the potential to provide solutions for spectrum and bandwidth issues while ensuring that a large number of IoT devices do not overload existing networks.
But not everyone agrees with this.
Use existing networks to solve connectivity problems
Some commentators have a complete idea: instead of introducing a new private network, it is better to reinforce the network that is currently running.
The Bluetooth SIG, Suke Jawanda, believes that building a separate IoT network is unnecessary and, in fact, counterproductive. Zhuo Wentai mainly criticized that a single network is likely to prevent the Internet of Things from becoming a reality, because the new network protocol may mean that equipment time can no longer exchange information. Zhuo Wentai strongly suggested that under the premise of full improvement, the existing three major networks - cellular WAN, local wireless network and Bluetooth intelligent personal network - are sufficient.
Whether the Internet of Things requires a dedicated network is still in dispute, but the rapid development of low-power wide-area networks is an indisputable fact, and perhaps should be left to the market itself to decide.
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