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Peak Cancellation Crest Factor Reduction (PC-CFR)

CFR is used to reduce the dynamic range of a transmitted signal so that amplifiers being used to transmit that signal can be run with less back off. In a typical commercial wireless system, this would be used in combination with Digital Up Conversion (DUC) and Digital Pre-Distortion (DPD).

Part Number:
- EF-DI-PC-CFR-SITE
Design Tools Support: Vivado Software
License: Core License Agreement
Device Support: Artix 7, Kintex 7, Kintex UltraScale, Kintex UltraScale+, Virtex 7, Virtex UltraScale, Virtex UltraScale+, Zynq 7000, Zynq UltraScale+ RFSoC

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Overview
Documentation
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Supported Tool Versions

Product Description

AMD provides a CFR solution for common wireless standards that is low cost, flexible, low power and solves your time to market needs.

Crest Factor Reduction (CFR) is one of the most fundamental building blocks in wireless communication systems today. CFR is used to reduce the dynamic range of a transmitted signal so that amplifiers being used to transmit that signal can be run with less back off. In a typical commercial wireless system, this would be used in combination with Digital Up Conversion (DUC) and Digital Pre-Distortion (DPD). There are many different algorithms for CFR, from Peak Windowing (PW) and Noise Shaping (NS) to this method of Peak Cancellation (PC), which gives rise to the product name PC-CFR. This method is much more flexible than other methods, while being higher performance resulting in greater Peak to Average Ratio (PAR) reduction and yet extremely small and cost effective in its implementation.

The PC-CFR core reduces implementation time by providing a high performance CFR solution to customers as a parameterizable core, rather than one that needs design by hand to potentially meet a multitude of different wireless standards and performance criteria.

PC-CFR supports the following air interface standards:

LTE/LTE-Advanced
TD-SCDMA
WCDMA
WiMAX
CDMA2000
MC-GSM (including frequency hopping)

Key Features and Benefits

Support for multiple air interface standards
Smart Peak Processing mode for supporting wide transmit bandwidth up to 400 MHz, processes incoming samples at >1.2 times instantaneous Bandwidth (iBW) reducing resource utilization
User selectable carrier configuration agnostic Window Crest Factor Reduction (WCFR) available as a standalone or a post processing stage
Support for power and frequency dynamics
Support for dynamic computation of Cancellation Pulse (CP)
Support for optional hard clipper in post processing stage
Meets performance requirements (EVM, PAPR and ACLR) of all air interfaces
Configurable clock-to-sample ratio of 1, 2, 3, 4 and 8
Configurable number of Cancellation Pulse Generators (CPGs) of 1 to 12 per iteration
Support for 1, 2, 4, 8, and 16 antennas
Support for 1 to 8 iterations

Resource Utilization

Performance and Resource Utilization for Peak Cancellation Crest Factor Reduction (Registration required)

Documentation

Vivado IP Release Notes

This article contains a list of all 'Vivado™ IP Release Notes - All IP Change Log Information' answer records and the associated Vivado Tools release.

View Release Note

PG097 - Peak Cancellation Crest Factor Product Guide

Registration required

View Product Guide

PB008 - Peak Cancellation Crest Factor Reduction LogiCORE IP Product Brief (PB008) (v8.0)

Provides a flexible and highly efficient solution to reduce the peak-to-average power ratio (PAR) of complex multi-carrier waveforms.

View Product Brief

XMP039 - LogiCORE IP Peak Cancellation Crest Factor Reduction v2.0 Product Brief (XMP039) (v1.0)

The Peak Cancellation Crest Factor Reduction LogiCORE™ IP provides a flexible and highly efficient solution to reduce the peak-to-average power ratio (PAR) of complex multi-carrier waveforms

View Product Brief

Peak Cancellation Crest Factor Reduction LogiCORE™ IP

Full access to this IP core, including bitstream generation capability, requires that you generate and install a Full License Key.

Requirements

Please refer to the Requirements link on the product page for this core for information on:

Software and system requirements
Licensing terms and conditions for evaluation

License Terms

This core is licensed under the following terms: Core License Agreement.

Ordering Information

To purchase a LogiCORE IP™ core, contact your local Sales Representative referencing the part number in the table below:

LogiCORE Product Name	Part Number
Peak Cancellation Crest Factor Reduction	EF-DI-PC-CFR-SITE

Generate and Install a Full License Key

After purchasing a license for this core, follow the instructions in the purchase confirmation email you will receive on downloading the IP core netlist from the Licensing Site, and on generating and installing a Full license key to activate Full access to the core.

Release Notes & Known Issues

For information on New Features, Known Issues, and Patches please refer to the Installation, Licensing and release Notes document available on the Licensing Solution Center

Additional User Documentation

The documentation for this core is available to all customers who have a full or evaluation license. You must register for access to the evaluation lounge to view the documentation.

PC-CFR Product Guide Register Now >>

Peak Cancellation Crest Factor Reduction Supported Tool Versions

Hardware Evaluation Time Out Period * : ~ 4 hrs

LogiCORE™	Version	Software Support	AXI Support	Supported Device Families
Peak Cancellation Crest Factor Reduction (PC-CFR)	v8.0	Vivado™ 2023.2	AXI4-Stream AXI4-Lite	Kintex™ UltraScale+™ Virtex™ UltraScale+ Zynq™ UltraScale+ Zynq UltraScale+ RFSoC DFE Kintex UltraScale™ Virtex UltraScale Zynq 7000 Artix™ 7 Kintex 7 / -2L Virtex 7 / XT /-2L
Peak Cancellation Crest Factor Reduction (PC-CFR)	v3.1	ISE™ 14.4	AXI4-Stream AXI4-Lite	Zynq 7000 Artix 7 Kintex 7 / -2L Virtex 7 / XT / -2L Virtex 6 CXT / HXT / LXT / SXT

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Peak Cancellation Crest Factor Reduction (PC-CFR)

Product Description

Key Features and Benefits

Resource Utilization

Related Product

Documentation

Peak Cancellation Crest Factor Reduction LogiCORE™ IP

Requirements

License Terms

Ordering Information

Generate and Install a Full License Key

Release Notes & Known Issues

Additional User Documentation

Peak Cancellation Crest Factor Reduction Supported Tool Versions