First shown at Mobile World Congress in February at Cat 3 100mbps, this Tegra 4i demo is fully based on a software update – no new hardware, no new processor. This showcases the adaptability and flexibility of NVIDIA’s software-defined radio technology.
An additional advantage of the technology is its tiny size. Because the modem is designed with general purpose Deep Execution Processors (DXP), it’s 40 percent the size of a conventional LTE modem. The benefit is a fast, high performance, adaptable modem in a tiny footprint.
Tegra 4i’s modem is also multi-mode. It delivers 4G LTE Advanced and is backward compatible so it can offer LTE Cat 3, 3G, and 2G. That means it will work even where LTE networks aren’t available. Other LTE Advanced features will be coming soon in software.
The CTIA demo used a tester which emulates an LTE Cat 4 network because live local LTE Cat 4 networks don’t exist yet. In this demo Phoenix – the Tegra 4i reference smartphone – is connected to the tester and shows 150 Mbps.
We also demonstrated Phoenix running on a live AT&T LTE network – showing video streaming over LTE and voice calls. It’s a great proof point of our strong progress in Tegra 4i modem stability and performance.