Everything in the Internet of Things is a huge imagination of imagination for future life. The industry is expected to achieve interconnection by 50 billion devices in 2020. The application scenarios and smart phones of these devices are different. Traditional close-range wireless access technology is unable to adapt to the needs of the Internet of Things, and to realize the connection between the Internet. Support for many heterogeneous connectivity technology is required to meet the needs of different scenarios and applications.
Among the many connection technologies for supporting the development of the Internet of Things, Gaotong, the global wireless technology leader, believes that cellular technology will play a key role in the next 10 years or even longer. Recently, the LTE IoT product Dynamic Small Media Communication Conference in Qualcomm said that the Qualcomm product market Director Ma Jinwu said that the current LTE IoT has begun to connect massive network, more than 50 commercial CAT-M1 and / / Or CAT-NB1 network, you will be higher in the world.
Qualcomm has invested a lot of effort in this regard, before high-pass launched LTE IoT chipset - MDM9206 in the United States, Australia and European markets, and have been numerous Accreditation and favor of domestic and foreign module manufacturers. At this communication meeting, Qualcomm introduced the next-generation network-specific modem 9205. The modem supports several low-power WAN standards, including LTE-M, NB-IOT, and 2G / E-GPRS connections, reduced by 70% higher than the power consumption of the previous generation MDM 9206, and only 50% of MDM 9206.
Ma Jinwu said that the 9205 modem is the latest generation of Qualcomm for low-power wide-area Internet of Things to design a lot of optimizations for the field of Internet of Things. Compared to the previous generation has more leadership, it is the highest integration in similar products, integrated flash, RAM and RF front end, more cost effective.
Why use multi-frequency multi-frequency? Ma Jinwu explained that there are different system requirements in various regions or countries, which caused a variety of systemic combinations. For example, China is NB-IOT, the United States is EMTC, India and Europe are NB-IOT + GSM, Australia is EMTC + GSM. If the chip used by terminal vendors only supports EMTC, or only support NB-IOT, it requires different hardware design and different modules to deal with different markets. And using Qualcomm 9205 can perfectly solve this problem. After the manufacturer completes hardware design, the product can be applied to the global market, as long as the corresponding system is selected in software settings.
"This will bring huge benefits to terminal manufacturers." Ma Jinwu said: "Because after the completion of the development of the module, there is a lot of certification work. For each market, each operator must do certification, including FCC certification, CE Certification, China's CTA certification, a large amount of time and money cost it to certify, and each module model has to make such an authentication process. Sometimes it takes millions of dollars for the model of a module. If there are multiple modules that require authentication, the cost will be very amazing. "
He further said: "If you use Qualcomm 9205 LTE modem, customers can save a lot of such certification costs. In addition, in terms of production materials management, different modules need to configure different production materials management and inventory management, are more cumbersome. "
In addition, network coverage may not be particularly perfect in the early stages of network construction. For example, in China, GSM network coverage is very good, and NB-IOT will inevitably have unclosed areas in the early days. If you use a chip that supports NB-IOT and GSM, the IoT terminal can use the NB-IOT NB-IOT in the NB-IOT area, and use GSM in NB-IOT unclociated area, that is, one product is applicable. Different scenes.
Not only that, QUALCOMM 9205 also supports larger radio frequency from 450MHz to 2.1GHz, so a radio front end can cover all medium and low frequency bands used in global Ibs, so that manufacturers do not need to face a separate market like America and Europe. To add additional band support. We see many of the markets that are currently only supporting domestic Internet of Things, such as BAND3, BAND5, BAND8, etc. If you want to support overseas Internet of Things, you need to add additional models of chips to support, that is, I just said A module different models. In short, the global multi-mode is to allow a hardware to support multiple radio frequency bands around the world, allowing products to the world.
What highlights are there to talk about the product? Ma Jinwu said that the high-pass 9205 has six highlights, which are commercially used to use commercial global multi-mode multi-frequency solutions; the integration of integrated products is the highest; integrated GNSS receiver; hardware security foundation; ultra-low power consumption, support long-lasting And powerful application processors and software suite support applications and services.
According to reports, Qualcomm integrates the positioning function into the MDM 9205 chip, supports GPS, Gronas, Beidou and Galileo satellite navigation system, just add GPS antennas, GPS positioning. At present, many manufacturers need to add a GPS chip to the IoT chip to support positioning, and Qualcomm has integrated GNSS in chips.
At the same time, Gao Tong reduces the size of MDM 9205 while concentrating more in the integration, including hardware, module, RF device, etc., more cost effective. In addition, MDM 9205 can achieve high power consumption reduction in idle mode +, ultra-low system-level cutoff voltage to support a wide range of battery life; at the same time, advanced battery management can extend battery life.
In terms of security, the QUALCOMM 9205 adds a security consideration from the design level of the chip. First, a one-time programmable E-FUSE is provided. E-FUSE is a fuse that blows the fuse when it is factory, you can turn off all debug ports to prevent the software in the product via debug interface and debugging tools. Second, the chip supports security boot (SECURITY BOOT). In the process of performing each step, Qualcomm will do cross-validation, and check the code whether it is tampered with, if it is found to be tampered, the entire execution stops. In addition, Qualcomm provides a trusted execution environment. "We will put some important information, data, and operations in a trusted enforcement environment. The trusted execution environment is a hardware isolation area in our chip, and any software is going to read this area, will be The firewall is blocked, and it cannot be read. "Ma Jinwu said.
He further said: "Of course, safety is not very unlucky, even if protection is strict, it is inevitable that there is a vulnerability. But from Qualcomm, we have the highest security capability we can provide on the 9205 chip, and can meet the operation Safety requirements. If the security is required for security, the security level is required, we can also provide a separate encryption certification chip, but this will naturally improve the cost of the product. "
The 9205 chip also has a powerful application processor and software kit, 9205 integrated a Cortex A7 processor, the highest frequency up to 800MHz. In addition, the software suite provided by Qualcomm is also prepared to support the support of multiple mainstream cloud platforms, such as Ali Cloud LINK Internet of Things suite, China Mobile Onenet, and support for foreign operators like Verizon Thingspace, developers through Qualcomm SDK can easily access these platforms.
Overall, 9205 compared to 9206, at rate, 9205 support REL-14 CAT-M1 and NB2, CAT-M1 rate increase from previous 300 kbps to 1 Mbps, NB2 has also increased from 30 kbps to more than 100kbps. At the same time, the 9205 chip also integrates RAM and flash memory, but also integrates passive devices such as RF front and resistance capacitors. The 9205 chip also supports a larger voltage range, which can be more fully utilizing the amount of electricity in the battery. Overall, the 9205 chip is a chip specifically designed for low-power WAN for low-power WAN, so many optimizations are made for this field.
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Original address: https://www.eeboard.com/news/9205/
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