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CPRI v4.1 IP core supports WiMAX, LTE

Posted: 13 Aug 2009 ?? ?Print Version ?Bookmark and Share

Keywords:W-CDMA? WiMAX? IP core?

Altera Corp. has released the Common Public Radio Interface (CPRI) v4.1 IP core that supports channel speeds up to 6.144Gbit/s, meeting LTE and WiMAX standards. At the same time it offers legacy support for W-CDMA, CDMA and other air-interface standards in a single system. It lets developers upgrade easily from proprietary CPRI implementations to a highly configurable solution supporting today's standards, improving customer productivity and cost of ownership.

This fully configurable, off-the-shelf solution complements Altera's 40nm portfolio of Arria II GX FPGAs for up to 3.072G CPRI line rates and Stratix IV GX FPGAs and HardCopy IV ASIC solutions for up to 6.144G CPRI line rates. The IP core targets a wide range of wireless applications including multi-mode air-interface support, single-hop and multi-hop system topologies and advanced MIMO antenna configurations. It comes complete with test benches that perform start-up sequences for common configuration modes so developers can get up to speed quickly and focus on differentiating their product.

"There is an increasing demand from our customers worldwide to provide off-the-shelf solutions for implementing common functions in wireless base stations," said Arun Iyengar, senior director of Altera's broadcast and communications business units. "The Altera CPRI IP core enables customers to minimize design efforts and accelerate time to market for standards-based radio access products while still retaining the ability to customize for the unique requirements of their applications. With increasing demand for bandwidth in the CPRI links, this core combined with our transceiver technology solidly positions OEMs to address future base station requirements including 10Gbit/s CPRI links."

The Altera CPRI v4.1 IP core include built-in support for CPRI v4.1 and backward compatible mapping methods; line rate support up to 6.144Gbit/s requiring a clock rate as low as 153.6MHz to ease timing closure; up to 24 antenna carriers per IP core; integrated 10/100 Ethernet MAC and HDLC controllers.

"We are pleased that Altera has selected our CPRI v4.1 IP technology to expand their IP portfolio offering," said Christian Lanzani, senior product manager in Radiocomp ApS. "This technology is the most compact, flexible and in-the-field fully verified CPRI interface solution available for distributed base stations."

This new CPRI v4.1 core adds to Altera's broad portfolio of wireless base station technology including IP, reference designs and DSP Builder tool support for creating optimized digital downconverters, digital upconverters, crest factor reduction, digital predistortion, and other functions.

The CPRI v4.1 core is available either in encrypted IP or as source code for complete user control. Contact your Altera sales representative for pricing. The CPRI IP is supported in the Quartus II software version 9.0 SP2, for all Altera 40nm transceiver-based products.

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