Xilinx and the Mobile World Congress 2008

The company will unveil its latest portfolio of flexible hardware solutions for mobile phone base stations, supporting all major air interfaces, including 3GPP-LTE. In addition, it will highlight a new digital pre-distortion (DPD) capability that enables infrastructure vendors to achieve significant power reductions from the latest generation of power amplifiers.

Xilinx Booth Demonstrations (Hall 1 – Stand E47)
In the following demonstrations, the folks at Xilinx say they will show how the integration of multiple functions on a single flexible silicon device results in direct and indirect cost reductions for network infrastructure vendors and operators.

• Multi-mode Radio Card – This demonstration supports UMTS, 3GPP-LTE, TD-SCDMA, and WiMAX, using the DSP resources of the FPGA to cost effectively implement the signal processing requirements of digital up conversion (DUC), digital down conversion (DDC), crest factor reduction (CFR) and digital pre-distortion (DPD). To minimize FPGA utilization and therefore reduce capital expenditure (CAPEX), the DPD processing is partitioned between the DSP resources of the FPGA and a MicroBlaze soft processor. This is then used to linearize the latest LDMOS RF power device from Freescale Semiconductor, achieving power outputs in excess of 40 watts whilst maintaining spectral mask. Xilinx has tested the DPD design with a number of power amplifiers and has observed output efficiencies of up to 35 percent. 
   
• Baseband – This baseband demonstration comprises a complete, high-throughput, 3GPP-LTE-compliant physical downlink shared channel (PDSCH), utilizing IP components, including an LTE turbo decoder, FFT/iFFT blocks with cyclic prefix insertion, rate matching and QAM mapper/demapper functions. Implemented using the latest Virtex-5 FPGA technology, the transmit and receive functions are connected by Ethernet to a host PC that sources and displays different video streams. A dual video stream arrangement is then used to demonstrate the capabilities of the >100 Mbps net throughput performance of the 3GPP-LTE PHY, over a 10 MHz frequency band.

About Xilinx Virtex-5 FPGAs
The Virtex-5 family represents the fifth generation in the Virtex series. Built upon 65 nm triple-oxide technology, ExpressFabric technology, and the ASMBL architecture, the Virtex-5 family includes four domain-optimized platforms for high-speed logic, digital signal processing (DSP), embedded processing, and serial connectivity applications. Production devices are shipping and may be purchased online or through Xilinx distributors. Please visit www.xilinx.com/virtex5 for more information.

About the Mobile World Congress
The Mobile World Congress features the very latest in technology, services, and developments, bringing to life the promise of mobile broadband for all and defining the industry's path to continued growth. The congress brings together the eminent leaders and personalities from mobile operators and equipment vendors, as well as those from the Internet and the world of entertainment.

The Mobile World Congress provides a one-stop-shop for everyone looking to understand what will drive the success of the mobile industry over the next year. For more information, please visit www.mobileworldcongress.com.