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Xiaomi - one of the fastest growing mobile brands - has launched the world’s first dual-frequency GNSS smartphone. Fitted with a Broadcom BCM47755 chip, the Xiaomi Mi 8, launched on May 31, is the world’s first smartphone providing up to decimetre-level accuracy for location-based services and vehicle navigation.
Xiaomi has launched the world’s first dual-frequency GNSS smartphone, the Mi 8. This smartphone represents a breakthrough in GNSS technology as it is the first commercial deployment of Broadcom’s revolutionary BCM47755 chip.
The BCM47755, introduced last year, is a dual-frequency (E1/L1+E5/L5) GNSS chip that can compute location with an accuracy of up to a few decimetres. Until now, mobile location-based applications have been powered by single frequency GNSS receivers whose location accuracy is limited to a few meters. However, in recent years GNSS systems have been launching satellites broadcasting signals on new frequencies to open up new possibilities. Specifically, Galileo has the majority of satellites with E1/L1 and E5/L5 frequency capabilities.
Leveraging Galileo for increased accuracy
Users of the Xiaomi Mi 8 and future models with dual-frequency GNSS will benefit from better positioning and navigation experience in urban environments. This is due to the unique shape of the E5/L5 frequency, which makes it easier to distinguish real signals from the ones reflected by buildings, reducing the multipath effect (a major source of navigation error in cities and other challenging environments). The numerous Galileo satellites broadcasting E5 make this improvement available for users all around the world. In addition, the simultaneous use of two frequencies reduces other sources of error, such as those due to the ionosphere, and the frequency diversity is more robust to interference and jamming.
In addition to making existing applications more accurate, the enhanced position precision offered by dual-frequency GNSS will also create opportunities for new applications in areas such as augmented reality, vehicle navigation, and mapping.
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Commenting on the product launch, European GNSS Agency (GSA) Head of Market Development Gian Gherardo Calini said that the arrival of the first dual-frequency GNSS smartphone to the mass-market represents a breakthrough for users all over the world. “The enhanced accuracy provided will empower developers to create new applications that meet the growing high accuracy location requirements of users and also open up applications that previously only ran in dedicated devices intended for professional use,” he said.
Alex Chou, vice president of product marketing for the Wireless Communications and Connectivity division at Broadcom Inc., said: “Broadcom is glad to gear up Xiaomi’s flagship smartphones with the very latest dual-frequency GNSS technology. Xiaomi Mi 8, the world’s first smartphone with BCM47755, will take smartphone GNSS navigation to a whole new performance level.”
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Zhiyuan Zang, Director of Product Marketing from Xiaomi, said: ”The importance of GNSS to modern life is undisputed, and is particularly important for smartphones. Navigation and LBS-based apps these days require greater positioning accuracy to work effectively, and dual-frequency GNSS is the key to delivering a great user experience when using these apps. Xiaomi is delighted and honored to be the world's first smartphone manufacturer to support dual-frequency GNSS. We will continue to pursue innovation for everyone to enjoy.”
Exciting times for geolocation
The launch of the first dual-frequency GNSS smartphone, together with the opportunities offered by the availability of GNSS raw measurements in Android, creates exciting opportunities for the geolocation community. Access to raw measurements opens the door to algorithms once restricted to more advanced GNSS receivers. This, in turn, allows users to fully benefit from the differentiators offered by Galileo.
Recognising these opportunities, last year, the GSA engaged with the academia and industry in the areas of navigation and positioning to innovate around this new feature, as part of a GNSS Raw Measurements Task Force. Then, in January this year, the GSA published a White Paper on the use of GNSS Raw Measurements in Android, providing developers with in-depth information on accessing and using raw measurements to implement advanced GNSS techniques in mass-market devices.
Building on this work, the GSA and the Raw Measurements Taskforce shared their latest updates at a dedicated workshop – “GNSS Raw Measurements: From Research to Commercial Use” - held at the GSA headquarters in Prague on 30 May, where Broadcom presented their encouraging test results from the dual-frequency BCM47755.
Media note: This feature can be republished without charge provided the European GNSS Agency (GSA) is acknowledged as the source at the top or the bottom of the story. You must request permission before you use any of the photographs on the site. If you republish, we would be grateful if you could link back to the GSA website (http://www.gsa.europa.eu).
SAN JOSE, Calif., Jan. 14, 2021 (GLOBE NEWSWIRE) -- Broadcom Inc. (NASDAQ: AVGO) today announced that the BCM4389 chip enables the world’s first Wi-Fi 6E phone, the Samsung Galaxy S21 Ultra. The BCM4389 combines the benefits of the sixth generation of Wi-Fi with the pristine 6 GHz band to power the Galaxy S21 Ultra with Wi-Fi speeds over 2 Gbps. The chip also has a unique multi-radio Bluetooth 5 architecture that supports a premium audio experience with Samsung Galaxy Buds Pro, and Tri-Band Simultaneous (TBS) connectivity that improves Wi-Fi and Bluetooth performance and battery utilization.
Wi-Fi 6E, the latest generation of Wi-Fi, delivers multi-gigabit speeds and millisecond latencies by operating in the 6 GHz band. Countries, including the United States and South Korea, have tripled the available Wi-Fi spectrum by opening up 1.2 GHz of spectrum in the 6 GHz band for unlicensed use. This expansion creates seven additional 160 MHz channels for the BCM4389, unlocking the value of Wi-Fi 6E for remote work, education, telemedicine, and gaming. For more information on Wi-Fi 6E, please visit https://www.broadcom.com/info/wifi6e.
The Broadcom® BCM4389 and Samsung Galaxy S21 Ultra bring additional benefits to consumers worldwide. The chip delivers multi-gigabit Wi-Fi 6 performance in the existing 5 GHz band with 160 MHz capabilities. It also builds on the success of Broadcom’s Wi-Fi 6 solutions, and instantly benefits from the ecosystem of 400 million Wi-Fi 6 Broadcom-enabled phones, PC, tablets, routers, enterprise access points, and carrier gateways around the world.
The BCM4389 was the world’s first Wi-Fi chip authorized by the FCC to operate in the 6 GHz band. It is also in the first wave of devices certified by the Wi-Fi Alliance for Wi-Fi 6E operation. In addition to Wi-Fi 6E, Broadcom BCM4389’s TBS connectivity architecture brings better Wi-Fi QoS, more precise indoor location accuracy and five times better battery utilization compared to current flagship connectivity solutions. Its multi-radio Bluetooth 5 architecture creates robust links to audio headsets even in heavily congested locations like subway stations.
“We are truly excited about this partnership with Broadcom in bringing a seamless and secure connected experience to our Galaxy users,” said JM Choi, VP & Head of Convergence Development Group, Mobile Communications Business at Samsung Electronics. “Our joint dedication to a market-leading technology has evolved to now include Wi-Fi 6E on the Samsung Galaxy S21 Ultra, and enables an unrivalled connectivity experience for Galaxy users to share and consume content with confidence.”
“We are honored to have collaborated with Samsung to enable the world’s first Wi-Fi 6E phone,” said Vijay Nagarajan, vice president of marketing for the Wireless Communications and Connectivity Division at Broadcom. “Back in 2019, our partnership in launching Wi-Fi 6 in Samsung Galaxy S10 kick-started a technology transition that has resulted in around half-a-billion Wi-Fi 6 devices in the world today. Today, this partnership has made the Samsung Galaxy S21 Ultra a showcase for the immersive possibilities with Wi-Fi 6E, and a harbinger for the technological disruptions that await us with Wi-Fi in the 6 GHz band.”
“As the 6 GHz band continues to open up in countries across the world and as the 5 GHz band becomes increasingly crowded in many areas, the time to include Wi-Fi 6E in devices is now,” said Phil Solis, research director at IDC. “Smartphones are both high>
For more information on Broadcom BCM4389, please visit https://www.broadcom.com/products/wireless/wireless-lan-bluetooth/bcm4389
About Broadcom
Broadcom Inc. (NASDAQ: AVGO) is a global technology leader that designs, develops and supplies a broad range of semiconductor and infrastructure software solutions. Broadcom’s category-leading product portfolio serves critical markets including data center, networking, enterprise software, broadband, wireless, storage and industrial. Our solutions include data center networking and storage, enterprise, mainframe and cyber security software focused on automation, monitoring and security, smartphone components, telecoms and factory automation. For more information, go to www.broadcom.com.
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