Technology updates iterate, changing everything from 3G to 4G to 4G + or even the future 5G, and the current wave of the Internet of Things are all new technologies that give us a broader view of these areas. Qualcomm continues to make advances in wireless communications, especially in the area of ​​smart terminals and chipsets. Founded 32 years, in the past 30 years, Qualcomm has been studying how to connect people, through the mobile terminal will connect people around the world, but now, in addition to doing human research, but also to further explore things and things Connection, but also because of this, the concept of Internet of Things enjoys popular support, its emergence has derived a lot of new technologies, new concepts. "Connect" and "Calculate" In fact, for the Internet of things, it is still just a start, its real business model, application services and changes in human life are in the state of development to be developed, which is enough to make the industry continued to be excited. The future goal of the development of the Internet of Things is to connect all things, not only to connect everyone and his work and life around each object, this is not a small change, but a qualitative leap in human life. Connection and computing are the two main core technologies of IoT evolution. Connection, is to connect the various objects, they talk to each other; calculation, which is similar to the computing technology in mobile phones, Internet of Things is also applicable. So what the Internet of Things in the concept of "connection" What are the urgent technical needs? Qualcomm as a technology company in the field of mobile phones, connecting people and technology to connect things and things, the evolution of the mainstream technology In an accelerated state, it is equivalent to the development of mobile terminals. However, compared with the mobile terminal connection, the Internet of Things takes into account both the progress of technology and other indicators such as compatibility, power consumption, cost and heat dissipation of multiple systems. This is a very difficult matter for the Internet of Things technology. The breadth of networking also determines its technical complexity. Mentioned earlier, the connection and calculation. The connection can be based on the length of the distance to distinguish between the use of technology, short to objects and objects, objects and people through Bluetooth, NFC, ZigBee and other technology connections, as far as smart city lights and street lights, and between the parking lot However, the cellular network technologies are 2G, 3G, 4G and future 5G technologies. They are the most widely-deployed and most widely deployed technologies in the world. However, how to integrate? CAT-M1 and Cat-NB1 provide new opportunities for 5G IoT development Qualcomm believes that cellular communication technology is the absolute mainstream direction in future IoT connectivity support technologies. But the cellular technology is 2G GSM, GPRS, EDGE to 3G WCDMA, EV-DO to 4G LTE, 4G +, carrier aggregation, these are not directly applicable to the Internet of Things, after all, for people-to-people communications and Internet of Things The proposed technical requirements are still very different. So where is the difference? As a result, Qualcomm has focused on two new technologies, Cat-M1 (eMTC) and Cat-NB1 (NB-IoT), all of which fall into the category of LTE. Cat-M1, also known as eMTC, is the standard for communication between machines. Cat-NB1 is also called NB-IoT. Cat-M1 and Cat-NB1 are the more standard names. So what's special about this new technology? They address the needs of the Internet of Things, reduce system complexity and system costs, and increase system life, enabling massive deployments, economies of scale and long life cycles for 4G modems. For example, as usual LTE pursues data rates, the Internet of Things does not require extremely high data rates and provides available rates. The Cat-M1 standard, uplink and downlink are 1Mbps; Cat-NB1 uplink and downlink rates were 60kbps and 20kbps, because it is mainly for some measurement and environmental sensors, etc., to do a very simple application. In addition to the rate, the bandwidth is adjusted. Usually a LTE carrier is 20MHz, and the bandwidth of the Internet of Things has been significantly reduced: Cat-M1 only needs 1.4MHz system is enough, Cat-NB1 needs 200KHz, the advantage is that deployment easier and thus reduced The cost of this, Cat-NB1 deployment and more flexible. In addition, Cat-M1, Cat-NB1 can support half-duplex, thus reducing the complexity of the filter requirements, the cost is also significantly reduced. In addition, there are two technologies to reduce mobility, reduce voice demand, penetration performance and so on. Earlier, Qualcomm and China Mobile, Ericsson conducted a Cat-M1 test at the end of last year, and also signed a strategic memorandum of understanding with China Mobile. In the future module design, business model development, industry chain development, and more long-term Such as 5G, car networking, cloud computing, and so on, which are based on Cat-M1 and Cat-NB1 these two technical aspects of upgrading and to the more long-term direction. As mentioned earlier, Qualcomm introduced MDM9206, a multi-mode multi-frequency chip customized for Cat-M1 and Cat-NB1. The future, 5G probably started in 2019 to 2020, Qualcomm's vision is the first enhanced broadband communications data rate will go to a higher level; the second is to do business-critical services in the future can perform very complex tasks Such as driverless, medical, and rescue efforts. The third is the Massive IoT, which is going to step beyond the 4G Cat-M1 and Cat-NB1 in the Internet of Things. 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