10 August 2010
4G chip said to reconfigure in 50µs
French research organisation CEA-LETI has developed a digital baseband circuit for software defined radio and cognitive radio applications. According to the body, the chip can reconfigure itself in less than 50µs.
Called Magali, the chip is aimed at 4G mobile phones and features an asynchronous network on chip (anoc) infrastructure delivering 2.2Gbyte/s per link. The chip includes 23 integrated processors dedicated to signal processing and bit level processing and an ARM1176 processor for medium access control.
Using the anoc technology, 23 frequency islands can be programmed dynamically to ensure the best performance versus energy ratio. As a result, the circuit consumes less than 500mW while processing up to 40GOPS.
Magali has been tested on a 3GPP-LTE application, delivering 50Mbits/s in a 4x2 MIMO scheme.
Author
Chris Shaw
Supporting Information
Websites
http://www-leti.cea.fr/en/Join-us/Welcome-to-CEA-Leti
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