Whether you like it or not, smartphones are quickly becoming ubiquitous. In fact, according to analysts, by 2019, smartphone users will reach 5.6 billion. However, it is precisely because smartphones (and all their features and functions) have become the center of our digital life, so when we expect smart phones to perform better and more sophisticated, our requirements will not reduce. On the contrary, the more we get, the more we seem to want.
Today's consumers need greater network throughput so they can seamlessly download applications and video streams with ever-increasing data densities. However, there is a small problem - to meet the growing willingness of consumers, the level of wireless connectivity technology of smartphones needs to be comparable to existing notebooks and tablets. In other words, smartphones require a 2x2 MIMO (multiple input multiple output) solution that has been difficult to implement on the platform until now. Fortunately, with 5G WiFi with 2x2 MIMO, the situation has changed a lot.
5G WiFi, or 802.11ac, is the fifth-generation WiFi technology that offers triple download speed, six times the power and four times the bandwidth compared to existing networks. 5G WiFi uses a higher-order modulation scheme, 256 QAM modulation, which provides more efficient data transfer and longer battery life than 802.11n's 64 QAM modulation. 5G WiFi is very powerful enough to cover a wider range; and it is robust enough to handle more devices that transmit massive amounts of data (such as HD video and other device cases for users who love video content).
Adding 2x2 MIMO adds twice the Wi-Fi performance of any other solution currently on the market. 2x2 MIMO uses two antennas to simultaneously transmit and receive two streams of data, effectively multiplying throughput and ensuring faster download times. Antennas can also be configured to provide the same throughput over longer distances, making it easier for users to find signals in data-congested environments.
Smartphones traditionally use a single antenna connection or a 1x1 SISO (single-input single-output) solution for wireless connectivity, and performance is reduced by a number of factors, including the way the phone is held and placed. MIMO's multipath communication overcomes this problem by enabling smartphones to find and maintain clearer and more powerful Wi-Fi signals, no matter how they hold the phone, and whether there are any obstacles in the transmission path, even if the data is congested. The situation is also unaffected.
This is also good news for consumers, carriers and equipment manufacturers; but it is not easy to put the concept of 5G WiFi 2x2 MIMO into the ground. To achieve this concept, many technological breakthroughs are needed. Engineers first need to find ways to electronically separate antennas in a limited space on a smartphone. There is also a need to ensure that the MIMO antenna does not adversely affect battery life and that the chip is small enough to take up space comparable to existing single-antenna solutions. It turns out that achieving the latter goal is very difficult, because even though the screen of the smartphone is growing, its internal space is shrinking. To compensate for this less than ideal antenna condition in such a small sealed space requires special improvements to the radio design.
The result is a 5G WiFi 2x2 MIMO single-chip system (SoC) for smartphones that rivals today's tablet and laptop wireless connectivity technologies. Not only does it achieve twice the throughput of existing 1x1 SISO solutions, it also increases power efficiency by 25% and increases wireless coverage by 30%, while reducing the complexity of product designers' implementations. Because SoC uses 5G WiFi technology, it can use beamforming technology to further enhance Wi-Fi performance when performing data-intensive computing tasks in crowded locations.
With the implementation of 5G WiFi 2x2 MIMO, this gives operators the ability to share network traffic in 3G and LTE networks into Wi-Fi. In other words, operators can now benefit more from the Wi-Fi networks and hotspots they manage. On the other hand, mobile device manufacturers can achieve unified Wi-Fi performance on different platforms without sacrificing wireless connectivity, while developing innovative form factors.
So what does this mean for the user? 5G WiFi 2x2 MIMO has completed its debut on smartphones in the spring of 2014. Not surprisingly, it brings a better Wi-Fi experience, allowing users to upload and download data-intensive content in real time, even in data-congested environments. For today's society that is eager for a better overall user experience, as well as operators and mobile device manufacturers who are eager to meet the needs of so many connected devices, the benefits of 5G WiFi 2X2 MIMO are irresistible. of.
About the Author
Dino Bekis is currently Vice President of Marketing for Broadcom Group Wireless Connections. In this role, he is responsible for the marketing of the company's embedded Wi-Fi solutions in major terminal segments.
Prior to joining Broadcom in 2007, Dino Bekis held various marketing and sales leadership positions at PMC Sierra and IBM. Dino Bekis holds a bachelor's degree in computer and systems engineering and a master's degree in electrical engineering from Rensselaer Polytechnic Institute and an MBA from Marlister College.
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