Xilinx FPGAs are the ideal platform for addressing the evolving technical and commercial requirements of wireless basestation designs. Inherently scalable and reconfigurable, the devices reduce the risk of expensive redesigns in a dynamic market. The massive levels of parallel processing power offered simplify channel card designs, reducing system cost, power dissipation and form factor.

Accelerated 3GPP-LTE Development

Building on the market-leading Xilinx Virtex and Spartan FPGA families, the Xilinx LTE Baseband Targeted Design Platform brings together an extensive range of both generic and LTE-specific air interface IP, a comprehensive design environment and pre-validated Targeted Reference Designs. By providing pre-built, highly optimized 3GPP-LTE layer-1 components, the LTE baseband platform enables developers to focus on product differentiation rather than the implementation of complex physical layer functions.

LTE Baseband Targeted Design Platform

Industry Challenges

Needfordramaticandsustainedreductionsinbothcapitalandoperatingexpenditures

Rapidlychangingmarketdynamics

Demandfornewapplicationsandhigherbandwidthservices

Constantevolutionofairinterfacestandards

IncreasingsemiconductorandASICdevelopment costs

The Xilinx Solution

Highlyintegratedtoreducecost,powerdissipation and form factor

Processingbandwidthforadvancedbasebandalgorithms

Reconfigurablearchitecturetofuture-proof designs

Scalableforallbasestationconfigurationsand air interfaces

Commonplatformforbasebanddevelopment

LTE BASEBAND TARGETED DESIGN PLATFORM WIRELESS

LTE BASEBAND TARGETED DESIGN PLATFORM

FLEXIBILITY AND SCALABILITY FOR NEXT GENERATION WIRELESS BASESTATION DESIGN

Horizontal DSP LogiCORE IP (e.g. FFT) Embedded Development Kit Connectivity (e.g. OBSAI/CPRI)

Virtex and Spartan FPGAs ISE Design Suite Boards

Customer Differentiation

LTE specic LogiCORE IP (e.g. LTE Turbo Decoder) System level LTE Targeted Reference Designs

APPLICAT ION MARKET-SPEC I F IC DOMAIN-SPEC I F IC BASE PLATFORM

TARGETED DESIGN PLATFORMS

CUSTOM

ER INNOVATIO

N

BasebandProcessingEcosystem

Baseband processing subsystems cannot be designed in isolation from the environment with which they interact. With this in mind, Xilinx and Wintegra, Inc. have collaborated to optimize the interaction between the Layer-1 and higher layers, which is critical to meeting the stringent end-to-end system latency goals of 3GPP-LTE.

A message-based application programming interface (API) supports the facilities and procedures defined by the 3GPP-LTE specifications, while shielding developers from the details of low-level IP interface tasks. In common with the rest of the LTE Baseband Targeted Design Platform, the API supports the full range of basestation form factors, bandwidths and frame structures. Initially implemented on a Xilinx Microblaze soft processor, the API is portable to any processing element and is designed to adapt to all common connectivity options.

Xilinx also works with a select network of systems integrators to accelerate delivery of turnkey products and services as part of the LTE Baseband Targeted Design Platform. In addition to platform expertise, these companies offer value-added IP as well as extensive wireless systems integration and validation experience. All Xilinx baseband processing elements have been designed for use in production systems and tested at the system level using LTE test equipment from Agilent Technologies.

CompleteLTEBasestationDesign

The LTE Baseband Targeted Design Platform in conjunction with the Xilinx Multi-mode Radio Targeted Design Platform creates an end-to-end LTE basestation design encompassing radio, baseband, media access control (MAC), and transport functions. Together, these modular platforms simplify development and reduce costs for both frequency division duplex (FDD) and time division duplex (TDD) variants of LTE. With a common platform for the design and development of programmable LTE baseband processing and digital front end (DFE) radio subsystems, developers have the flexibility and scalability to meet evolving product and time-to market requirements of next-generation 3G and 4G basestation architectures.

WIRELESS LTE BASEBAND TARGETED DESIGN PLATFORM

LTEBasebandTargetedDesignPlatformKeyFeatures

SystemlevelreferencedesignsdeliveredasEmbeddedDevelopmentKit(EDK)projects.

EasymodificationandadditionofcustomerIP

HighlyoptimizedLTEBasebandTargetedDesignPlatformLogiCOREIPcomponents

ComponentLogiCOREIPsupportedbybitaccuratebehavioralCmodelstoacceleratesystemlevelsimulation

CostandPower-optimizedBaseband

With easy-to-use graphical user interfaces, developers can configure LTE Baseband Targeted Design Platform LogiCORE IP components to optimize for cost and power regardless of the target basestation configuration. For example, the LTE Turbo Decoder can be generated with either 1, 2, 4 or 8 parallel decode units resulting in resource-optimized implementations across the full range of form factors from femtocell to the most complex macrocell systems. Developers can integrate production-quality LTE baseband functions from Xilinx into existing designs or customize the Xilinx LTE Targeted Reference Designs to leverage their own value-added technology.

Hig

her L

ayer

s

Downlink Targeted Reference Design

Uplink Targeted Reference Design

Outer Receive Functions Inner Receive Functions

Inner Transmit FunctionsDownlink Rx

TargetedReference

DesignDownlink Tx Reference Design

Outer Transmit Functions

LTE TurboEncoder

LTE MIMOEncoder iFFT

LTE MIMODecoder

LTE ChannelEstimator

FFTiDFT

LTE TurboDecoder

ViterbiDecoder

L1-L

2 A

PI

LogiCore System Level Component

LogiCore IP Component

Reference Design

LTE Baseband Targeted Design Platform Components

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LTE BASEBAND TARGETED DESIGN PLATFORM WIRELESS

Copyright2009Xilinx,Inc.XILINX,theXilinxlogo,Virtex,Spartan,ISEandotherdesignatedbrandsincludedhereinaretrademarksofXilinxintheUnitedStatesandothercountries.Allothertrademarksarethepropertyoftheirrespectiveowners.

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Take the NEXT STEPPlease visit http://www.xilinx.com/esp/wireless.htm

XilinxLTEBasebandTargetedReferenceDesigns

XilinxLTEBasebandTargetedDesignPlatformLogiCOREIPComponents

Visit www.xilinx.com/esp/wireless.htm#baseband and www.xilinx.com/ipcenter/fec_index.htm to find: Referencedesignmaterial

EvaluationversionsLTEBasebandTargetedDesignPlatformLogiCOREIPcomponents

Supportingdocumentation

Moreinformation

Note: It is recommend that the latest version of the Xilinx ISE software be installed to generate evaluation netlists.

LTE Downlink Transmitter

LTE Downlink Receiver

LTE Uplink Receiver

LTE Baseband Downlink Targeted Design Platform

LTE Turbo Decoder

LTE Turbo Encoder

LTE Channel Decoder

LTE Channel Encoder

LTE MIMO Decoder

LTE MIMO Encoder

FFT/iFFT

DFT/iDFT

LTE RACH Detector

Convolutional Encoder

Viterbi Decoder