Subject: Mobile | May 22, 2013 - 07:46 PM | Tim Verry
Tagged: Tegra 4i, software defined radio, SoC, nvidia, i500, 4g lte
NVIDIA's Tegra 4i System on a Chip includes a software defined radio that works as a LTE modem. This i500 LTE modem uses general purpose deep execution processors (DXP) and is as much as 40% smaller than a hardware LTE modem according to the company.
At Mobile World Congress earlier this year, the modem was able to reach 100Mbps throughput. After a recent software update, the Tegra 4i SoC in NVIDIA's Pheonix reference platform achieved 150Mbps throughput in a demo at CITA 2013 in Los Angeles this week.
The reference phone was connected to a test network during the demo rather than a live cellular network. The cellular network test equiptment showed the Pheonix platform was connected at the full 150Mbps link speed. In addition to this, NVIDIA showed the Tegra 4i-powered Pheonix phone connected to a live AT&T LTE network streaming video and making voice calls.
The interesting bit about the i500 modem in the Tegra 4i is its software defined nature. NVIDIA was able to upgrade the modem's capabilites through software rather than needing to redesign the hardware. This would be a big plus to consumers as they would be able to take advantage of the faster network speeds as they become available without needing to replace their phones. NVIDIA did note that in addition to the LTE Cat 4 support, the i500 is also backwards compatible with LTE Cat 3, 3G, and 2G networks. I'm interested to see what the power consumption of thei500 is like compared to LTE modems implemented in specialized hardware. The i500 is smaller and more flexible, but SDR can use more power due to its general purpose hardware units.
Read more about NVIDIA's Tegra 4i SoC at PC Perspective!
Introduction, Design and Ergonomics
Droid. When the brand launched, this was a name that stood for something. While the iPhone enthralled consumers with a friendly, easy, but ostensibly restrictive experience, Droid retaliated with the motto “Droid Does.” It was all about superior functionality, and in that regard it was a success. Today we’ll be looking at the Droid Charge, a phone coming by way of Samsung.
The Droid Charge is the second 4G LTE phone to hit Verizon’s network, making it an obvious competitor to the HTC Thunderbolt (along with the recently released LG Revolution). Like the Thunderbolt, the Charge is a member of a breed of single-core flagship phone that is already in the process of becoming extinct. Let’s have a look at what else powers Samsung’s Droid.
Many buyers are too quick to dismiss phones based of hardware specs, however – the single core tells us little about the Charge’s performance as a phone. As the first Droid to come from Samsung’s stable, this is actually quite an interesting device. Will the brand remain meaningful on a device from this manufacturer? Or is it being diluted?
Keep reading our review of the Samsung Droid Charge for all the info!!
Introduction, Design and Ergonomics
Watching today’s smartphone market brings back memories. Right now the transition from single-core to dual-core products is being made, as is a transition from older 3G networks to the latest 4G technology. I’m reminded of the excitement of the first dual-core x86 processors, as well as the rabid arguments surrounding them.
Many dual-core phone are still “coming soon”, however, which means that single-core flagships like the HTC Thunderbolt are still able to impress. This 4.3” smartphone is everything you’d expect a premier high-end Android handset to be. As I’ll explain, that has its positive and negatives, but the specifications look great on paper.