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-   -   Nvidia updates modem in Tegra 4i, adds LTE-Advanced connectivity (http://forums.macnn.com/113/tech-news/500795/nvidia-updates-modem-tegra-4i-adds/)

 
NewsPoster May 21, 2013 01:28 PM
Nvidia updates modem in Tegra 4i, adds LTE-Advanced connectivity
Nvidia has updated its latest mobile chipset with support for Category 4 LTE connectivity. <a href="http://macnn.com/rd/286043==http://www.electronista.com/articles/13/02/19/system.based.on.r4.cortex.a9.cpu/" rel='nofollow'>Tegra 4i</a>, similar to Tegra 4 but includes an integrated Nvidia i500 LTE modem, managed to upgrade from Category 3 and its 100Mbps connection to <a href="http://macnn.com/rd/286045==http://www.electronista.com/articles/11/01/26/lte.advanced.tested.at.600mbps.in.korea/" rel='nofollow'>LTE-Advanced</a> and a possible 150Mps speed, without performing any changes to the hardware. <br />
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The upgrade was accomplished with changes in software alone. The i500 LTE modem is a software-defined radio that uses Deep Execution Processors, and so was able to be changed without altering anything to it or Tegra 4i at all physically. The use of a software-defined modem also allows it to take up far less space in the chipset itself, allowing more room for other components. <br />
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Demonstrations at the <a href="http://macnn.com/rd/286044==http://www.ctia.org/conventions_events/wireless/" rel='nofollow'>CTIA</a> event in Las Vegas shows Tegra 4i working on an LTE-Advanced network at 150Mbps, though emulated due to the lack of live networks using such Category 4 connections. The Phoenix Tegra 4i smartphone is also being demonstrated on a live <a href="http://macnn.com/rd/286046==http://www.electronista.com/articles/13/04/10/new.att.4g.lte.markets.include.napa.santa.rosa.pet aluma/" rel='nofollow'>AT&T LTE</a> network, in order to show off the performance and stability of the software modem when used for voice calls and video streaming.
 
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