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Ref design eases development of femtocell base stations

Posted: 13 Feb 2008 ?? ?Print Version ?Bookmark and Share

Keywords:reference design? femtocell base stations? Mobile WiMAX?

Freescale Semiconductor Inc. and Sequans Communications have co-developed a reference design that promises to shrink form factors, lower costs and streamline the development of high-performance femotocell base station products.

The joint solution is delivered on a 165mm x 135mm PCB and enables rapid creation of WiMAX femtocell access point products capable of supporting more than 50 simultaneous users. Its performance quality is the result of the integration of Freescale's PowerQUICC II Pro MPC8313E processor and Sequans' SQN2130 single-chip Mobile WiMAX 802.16e PHY + MAC ASIC, which includes Sequans' field-tested S3MAX MAC software and delivers MIMO-A and MIMO-B functionality.

One of the newest additions to Freescale's family of PowerQUICC communications processors, the MPC8313E integrates a combination of GbE, USB 2.0, high-speed interconnect and advanced power management technologies to provide a platform optimized for WiMAX femtocell access points. Powered by the latest generation of Freescale's e300 core based on Power Architecture technology, the MPC8313E processor runs at speeds up to 333MHz and delivers up to 700 MIPS.

Sequans' SQN2130 ASIC for Mobile WiMAX base stations is Wave 2 and IEEE 802.16e-2005 ready, delivers 2X2 MIMO and high throughput, and can support several thousand subscriber stations. It supports hybrid-ARQ Category 4 and sustains full line rates with small packet sizes, translating to throughput of more than 35 Mbps. The power consumption of the SQN2130 is below 1.5W in MIMO mode.

The reference design is available today from Sequans, with a BOM priced at under $100 for high volume shipments.

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