Qualcomm's Snapdragon X55 Modem Is the 4G/5G Solution We've Been Waiting For

Qualcomm has unveiled its latest 5G modem, the Qualcomm Snapdragon X55. The chip is the company's second-generation 5G modem and successor to the Snapdragon X50 that was announced back in 2017. 'Headline features of this new chip include multi-mode 4G and 5G in a single chip, blazing fast 7Gbps speeds, and futureproof support for the 5G Standalone specification,' reports Android Authority. From the report: Starting with 5G, the chip supports both mmWave and sub-6GHz spectrum, just like its predecessor. Theoretical peak speeds are boosted from 5Gbps to 7Gbps download and up to 3Gbps upload. However, you'll need a perfect alignment of network conditions and capabilities to reach such lofty speeds. More important is the introduction of 5G FDD support. This will be crucial in Europe and other places looking to free up low-frequency spectrum (600 to 900MHz) for 5G. The Snapdragon X55 also introduces 4G/5G spectrum sharing, 100MHz envelope tracking for better power management, and antenna tuning in the sub-6GHz region. All very handy improvements over its first generation 5G modem.

Perhaps the biggest point of all is that the X55 also supports the 5G Standalone (SA) specification. First-generation 5G networks and devices are all based on the earlier Non-Standalone (NSA) specification. Eventually, these will transition over to the SA standard. SA ditches the use of LTE networks for backend communication, transitioning over entirely to 5G. This opens up greater networking flexibility with Network Slicing and offers even lower latency for IoT and device-to-device communication. On the 4G side, the Snapdragon X55 supports the Category 22 LTE standard. This allows for peak throughput of 2.5Gbps, making it Qualcomm's most powerful 4G solution to date. The Snapdragon X55 also introduces Full Dimensional MIMO (FD-MIMO) for LTE. This includes 3D beamforming, allowing for improved elevation support to improve spectrum efficiency. Importantly, the Snapdragon X55 is built on a 7nm process rather than 10nm with the X50. The new modem isn't expected to appear in devices until late 2019 at the earliest. Android Authority suggests that the X55 will be featured inside 2019's next-gen Snapdragon 8XX processor, which should be officially announced at the end of the year, close to when Qualcomm expects the first X55 products. 'In addition to the new modem, Qualcomm also announced its second-generation mmWave antenna and will be demoing its 5G technologies at MWC,' reports Android Authority. 'Dubbed the QTM525, the latest antenna module is slightly slimmer than the previous design and can be built into phones thinner than 8mm thick. It now covers 26, 28, and 39GHz mmWave spectrum and Qualcomm continues to suggest that three or four of these will be needed per 5G phone.'

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