Samsung Exynos Modem Innovations in the 5G Era
- The control level: AI can control various parameters of conventional signal-processing algorithms.
- The block level: AI can replace some of the processing blocks in the system, such as channel coding, channel estimation, symbol detection, beamforming, and CSI.
- The system level: AI can be used to build the whole communication system.
With a strong commitment to the development of technology, Lee says, “Samsung System LSI has been at the forefront of cellular modem innovations — all the way from its first LTE modem to the industry’s very first 5G multi-mode modem.”
Since the release of our first 5G modem in 2018, Exynos baseband and RF modem solutions have been commercialized for all smartphone segments. This year, we released the flagship Exynos 2200 and Exynos modem 5300, which are 3GPP Release 16-compliant. Moving forward, Lee says, “while we continue to advance our 5G modems further, we’re also innovating cellular modem technology for the 6G era.”
The Road to Wi-Fi 7 and BeyondWi-Fi History from 1 to 6E
Wi-Fi has evolved to accommodate higher speed and expanded coverage. Starting as a single carrier system with Wi-Fi 1, Wi-Fi 2, 3, and 4 evolved to adopt OFDM and MIMO techniques. Lee explains that Wi-Fi 5 took it a step further “by featuring a multi-user MIMO technique that allowed a single access point to transmit data to multiple devices simultaneously.”
Wi-Fi 6 introduced orthogonal frequency-division multiple access (OFDMA), which allowed networks to deliver superior performance even when multiple devices are connected at once. The first iteration of Wi-Fi 6 could only be used at 2.4 and 5 gigahertz, but Wi-Fi 6E changed that, enabling use in the 6-gigahertz band.
Wi-Fi 7 and Beyond
Wi-Fi 7 is the next evolution of Wi-Fi, and it will be what enables new technologies like 4K and 8K video, virtual reality (VR) and augmented reality (AR). To meet the heightened demands of these technologies, Lee says, “Wi-Fi 7 makes it possible to transmit data as fast as 23 gigabits per second, with 4k-QAM and 320-megahertz bandwidth.”