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Advantages of several common iot communication technologies

The Internet of Things is the product of the combination of communication technology, computers and the Internet, which can realize the functions of connection and communication between everything, information sharing and intelligent data processing. automatic probe station As long as it involves the application of information technology, it can be included in the scope of the Internet of Things. In the popularity of the Internet of Things, wireless technology will play an increasingly important role.

First, NB-IoT

Technological advantage

NB-IoT has four major development characteristics in China:

1, wide coverage, will provide improved indoor coverage, in the same frequency band, private 5g NB-IoT than the existing network gain of 20 dB, equivalent to 100 times the coverage area capacity;

2, It has the ability to support large-scale connectivity. NB-IoT can support 100,000 connections in one sector, and supports low latency sensitivity, ultra-low device cost, low device power consumption and optimized network architecture.

3, low power consumption, NB-IoT terminal module standby time of up to 10 years;

4, lower module costs, companies expect a single continuous module no more than $5.

Focusing on the low power Wide Coverage (LPWA) Internet of Things (IOT) market, NB-IOT is an emerging information technology that enterprises can conduct a wide range of research applications across a global economy. private lte It has the characteristics of wide coverage, many connections, low speed, low cost, low power consumption, excellent architecture and so on. NB-IOT uses licensed frequency bands and can be deployed in three modes: in-band, protected band, or independent carrier, coexisting with the existing social network culture.

2. eMTC

Lte-m, or LTE-machine-to-machine, is an Internet of Things technology based on the evolution of LTE. In R12 it is called low-cost MTC and in R13 it is called LTE-enhanced MTC or eMTC. It is designed to meet the needs of iot devices based on existing LTE operators.

EMTC is deployed on a cellular network and supports a maximum upstream and downstream peak rate of 1Mbps, which belongs to the Internet of Things. Its user devices can be directly connected to existing LTE networks by supporting 1.4MHz RF and baseband bandwidth, and the latest eMTC and NBIoT further optimize system costs, enhance battery life, and expand coverage as LTE continues to evolve. The key capability of eMTC is to support mobility and location, and its cost is only 25% of the Cat1 chip, which is four times higher than GPRS.

3. Technological advantage

Some important features of narrowband LTE.

First, the system complexity is greatly reduced, and the complexity and cost are greatly optimized.

Second, the power consumption is extremely reduced, and the battery life development time can be greatly increased.

Third, the network coverage capability has been greatly improved.

4. the network coverage density increased.

EMTC has four basic functions of LPWA: First, wide coverage, EMTC in the same frequency band than the existing network increased by 15 decibels, greatly improving the depth coverage capability of LTE network; Second, the ability to support large-scale connections, EMTC can support nearly 100,000 connections within a sector; Third, low power consumption, EMTC terminal module standby time can be up to 10 years; Fourth, the module cost is low, large-scale connectivity will make the module chip cost drop rapidly, EMTC chip target cost of 1-2 US dollars.

LoRa

Technological advantage

On-demand deployment :LoRa can plan the deployment network according to the application needs, and place the base station gateway according to the site environment, making it easier to achieve seamless coverage. Improved coverage quality can also reduce power consumption, increase system capacity, make it deployable to individuals, enterprises, or institutions, meet security requirements, and keep data private.

Lightweight: Compared with other LPWAN technical service protocols, LoRa system complexity is lower, the hardware can achieve a simple, relatively low resource management requirements, lightweight LoRaWAN protocol, software enterprise implementation is simple, deployment implementation method is simple.

Low cost: Lola Bay module mass production, the price has been under $5, and gradually approaching the price of 2G module, outdoor base station has been as low as $500, indoor $100, from foreign operators, Lola can cost 1/5 to 1/10 or less eMTC.

The industrialization of the Internet of Things requires the cooperation of upstream and downstream manufacturers, as well as the cooperation of various departments within the system. At present, the application field of the Internet of Things is very wide, and many industries cross each other. In order to achieve full development, it is necessary to strengthen the coordination and interaction between the competent authorities of various industries and maintain an open mind. The communication technologies adopted by the Internet of Things have their own advantages and markets. It is believed that in the near future, multi-LPWAN technology will definitely achieve symbiosis and perfect harmony.