The concept of things in the ascendant, many new technologies, new concepts are being produced. Qualcomm, which has been plowing for years in the field of mobile phone chips and making great achievements, will also focus on the Internet of Things. In the recent "multi-core trend of the Internet of Things Q technology LTE Internet of Things Technology Media Salon", Shen Lei, senior director of Qualcomm product market, said that the focus of high-pass 3 years are connected, but from now In the 30 years to come, Qualcomm's main vision is to connect everything. "We want to make the most of connections, calculations and other technologies to make our lives more enjoyable, efficient and an essential change in the way we live." Lei stressed.
Emerging the Future The main technology of the Internet of Things is currently divided into two major blocks: one is connected and the other is calculated. The first is to connect, that is, connect objects to talk to each other, such as two objects, and their calls with the network, there are short, medium and wide area connection technology. On the other hand is computing, including CPU, GPU, multimedia, images, sensors, positioning and other computing technology in the cell phone, will be transferred to the subsequent application of the Internet of things.
Why mobile phone technology can be applied to the Internet of things? For quite a long time, mobile phones have been a major area where technology advances and product improvements have been made. First of all, the scale of the mobile phone industry is very large. Each year, the global handset shipments are more than 1 billion. In addition, the cell phone ecosystem is large enough, leading products and technology manufacturers are involved, we work together to compete with each other, so technology can be a faster pace to move forward. The evolution of the mainstream technology is not calculated in years, are calculated on a monthly basis, a lot of communications, computing technology, every few months there is a great improvement. Compared with other areas, mobile technology has evolved very fast. In addition, the performance of mobile phones on all aspects, power consumption, size, cost of the extremely demanding, everyone knows how thin and how powerful the current cell phone processing power. For example, a cell phone communication system inside 4G communication system, GPS, FM, Wi-Fi, Bluetooth, etc., these are radio frequency systems, to send and receive data, to deal with a variety of signals, all of these have all been plugged in A so thin, so small metal shell, the shell of the battery, cameras and other mechanical components are preempting resources. How it can be done in such a harsh design environment that takes into account technological advances while taking into account other metrics such as compatibility, power consumption, cost, and cooling of multiple systems is a daunting task. But this is also the exciting reason for this industry.
Cellular technology is the future trend of things
The concept of Internet of Things is very broad, can be from small to large, a variety of objects, each field, every market, the nature of each object is very different. Such a complex scene, there is no way to provide all services only through a technology, a network, a system. The Internet of Things is very diverse and the technology provided is flexible enough to configure the communications and computing power needed based on the actual situation.
In the connection, the need for a wide range of technologies to support, such as short-range connections, connections between objects, or with people, you can use Bluetooth, NFC, ZigBee this one-meter range of connection technology; if it is LAN, in the home, office, airport, cafe, you can also use enhanced Bluetooth, you can also use ZigBee, Wi-Fi. Of course Wi-Fi also has various levels, data rates, coverage, you can use 802.11ac, 802.11a / b / g / n, 802.11ax, 1x1, 2x2, the most advanced can use 802.11ad, Wi-Fi in the LAN coverage is very it is good. If it is a larger area, such as a WAN connection, such as a smart city, connecting all the street lights and parking lots in the entire city and connecting the energy pipelines all over the country, there is no doubt that this requires a cellular network technology. Cellular network technology is the most familiar 2G, 3G, 4G and future 5G technologies. These are wide area coverage and the most mature and most widely deployed technologies in the world.
So in the cellular and non-cellular communication technology how to choose? Which one is the future direction? Shen Lei said that cellular communications technology is the future of the Internet connection support technology is absolutely the mainstream direction.
First of all, let's take a simple example. Cellular communication technology has evolved from 2G, 3G and 4G to now more than 30 years ago. Coverage is ubiquitous and does not require redeployment. Second, it is licensed spectrum, and operators are spending a lot of energy on deployment. Therefore, deployment is very cautious and fully guaranteed in terms of connectivity, security and quality. It is a foundation that is always online and very reliable facility. Finally, it is quite important to note that there are many practitioners in this ecosystem. There are some major global infrastructure vendors on the network side. There are many handset manufacturers on the terminal side. There are many practitioners such as Qualcomm on the chip side. From the standard Developed to the development and validation of technology to product development and marketing, and the entire network, the entire mobile phone optimization and improvement, has been doing this work. Therefore, the world's largest industrial chain, spent a long time to accumulate and improve, so that the most reliable cellular technology, the most complete, the most available technology.
e-MTC and NB-IoT will become the two major standard IoT technologies
There are many technologies that can be used in the Internet of Things, such as Sigfox, LoRa, NB-IoT and so on. Qualcomm betting on the two technologies of LTE Cat-M1 (e-MTC) and LTE Cat-NB1 (NB-IoT). Shen Lei explained that they are two new industry standards launched by 3GPP in June 2016. Shen Lei believes that with this industry standard, behind to do the base station, do the chips, the application service providers will follow up.
Of course, this is only an objective reason. LTE Cat-M1 and LTE Cat-NB1 stand out in many technologies, also shows that their flash point more than that. Shen Lei said that now the mainstream cellular technology standard is built for the connection between people to create, take the lead in ensuring high speed, with a high cost and complexity. Such a network for the high-volume access to intelligent terminals, the pressure can be imagined, so the new Cat-M1 and Cat-NB1 technical standards came into being. Considering that IoT devices are mainly wearable smart hardware, industrial sensors, monitoring meters, etc., this device has distinct features: small size, battery-powered and limited information transmission requirements. Based on this, Cat-M1 and Cat- NB1 was designed from the beginning to reduce system complexity and power costs, improve equipment life is the principle, only to ensure adequate speed (1Mpbs enough), which is precisely with the existing Cat. 9, Cat. The reverse is true of such technical standards that pursue high rates and high system complexity.
Specifically, the Cat-M1 has both uplink and downlink rates of 1 Mbps and a bandwidth of only 1.4 MHz. It uses half duplex and supports both FDD and TDD modes. It retains some mobility and supports VoLTE voice calls. These features make the Cat-M1 widely used in some high-reliability, mission-critical, and latency-sensitive scenarios, such as security in the building, care for the elderly, and wearable devices.
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