On November 18th, the 3rd World Internet Conference launched the “World Internet Leading Scientific and Technological Achievements Launching Event†for the first time, fully bringing together and displaying the world's leading and cutting-edge Internet new technology and new achievements. The Qualcomm 5G NR (New Air Port) prototype system and test platform stand out among the world's leading scientific and technological achievements in more than 500 Internet fields, and ranks among the “World's leading Internet technology achievementsâ€.
So what is the magic of this 5G new air interface? Quickly pull up the knowledge.
Always talking about 5G, where is 5G strong?
5G will become a unified structure that connects all things, changing the way people communicate with each other and people and things around them. For example, 5G will support smart cities and support future urban population growth; it will support autonomous vehicles to achieve communication between vehicles and vehicles and between vehicles and lights, thereby reducing accident rates and saving lives; will support virtual reality helmets, Let people experience the world in new ways; they will be able to use drones to prevent and control fires in remote areas. From a macro perspective, 5G will become the basic technology of the “digital economy†and become a new engine for the transformation and upgrading of China and the global economy.
Qualcomm always walks at the forefront of 5G
With years of experience in wireless technology and a solid foundation for its 3G, 4G LTE and Wi-Fi technologies, Qualcomm is at the forefront of accelerating 5G NR and is committed to leading the global 5G path.
Qualcomm announced the launch of the 5G NR prototype system and test platform in June 2016. The 5G NR prototype system operates in the 6 GHz band and demonstrates Qualcomm's innovative 5G design that efficiently implements multi-gigabit data rates per second and low latency. The prototype system is of great significance for promoting the standardization work of 3GPP OFDM-based new 5G NR air interface. The prototype system will closely track the global 5G NR standardization process, helping global mobile operators, infrastructure vendors and other industry players to conduct 5G NR tests in time to support the timely launch of 5G NR commercial networks in 2019 and 2020.
Dual-band WiFi module refers to the WiFi module that supports both 2.4GHZ and 5GHz bands. The dual-band WiFi module can operate in the 5Ghz band, which is much cleaner and can easily avoid interfering with each other. The advantage of 2.4G is that it has good ability to penetrate the wall, and the disadvantage is that it is easy to be disturbed. The advantages of 5G are strong anti-interference ability, wide band width, high throughput rate, and strong scalability, but the disadvantage is that 5G is only suitable for indoor small-range coverage and outdoor bridge, and the attenuation effect of various obstacles on it is much larger than 2.4g.
Dual-band WiFi module has a stronger and more stable Wifi wireless signal, higher transmission speed, and can make wireless devices more power-saving, to meet the future high-definition and big data wireless transmission needs.
When selecting a dual-frequency WiFi module, we should pay attention to these parameters of the WiFi module: size, package, frequency range, data rate, transmission rate, transmission distance, communication interface, power supply voltage, antenna interface, etc.
Dual frequency WiFi module can well meet the functional needs of users, increase the competitiveness of the product, while the WiFi module is easy to use, can shorten the user product development cycle, speed up the product market! Users can make choices according to actual needs!
Choosing a dual-band WiFi module may need to pay attention to the following points:
(1) Consider the transmission power of the dual-frequency WiFi module
The transmitting power of the WIFI module is generally about 18dBm, and the transmitting power of the high-power WIFI module is about 28dBm.
(2) Transmission rate
Consider whether the dual-band WiFi module supports MIMO technology (that is, allows multiple antennas to send and receive multiple spatial streams simultaneously)
(3) Consider the application interface that dual-band WiFi modules can provide, which is also very important.
(4) According to the requirements of the application scenario to choose the dual-band WiFi module, not the higher the configuration, the better, the application is good, excess waste!
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