Invention Grant
US08275067B2 Adaptive turbo peak mitigation for peak-to-average ratio (PAR) reduction using reserved tones
有权
使用预留音调的峰值平均比(PAR)降低的自适应turbo峰值缓解
- Patent Title: Adaptive turbo peak mitigation for peak-to-average ratio (PAR) reduction using reserved tones
- Patent Title (中): 使用预留音调的峰值平均比(PAR)降低的自适应turbo峰值缓解
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Application No.: US12139146Application Date: 2008-06-13
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Publication No.: US08275067B2Publication Date: 2012-09-25
- Inventor: Rahul Garg , Patrick Duvaut , Harish Jethanandani , Amitkumar Mahadevan
- Applicant: Rahul Garg , Patrick Duvaut , Harish Jethanandani , Amitkumar Mahadevan
- Applicant Address: US CA Fremont
- Assignee: Ikanos Communications, Inc.
- Current Assignee: Ikanos Communications, Inc.
- Current Assignee Address: US CA Fremont
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Agent Mark J. Danielson
- Main IPC: H04L27/04
- IPC: H04L27/04 ; H04L27/36 ; H04B1/38

Abstract:
Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
Public/Granted literature
- US20090310659A1 Adaptive Turbo Peak Mitigation for Peak-to-Average Ratio (PAR) Reduction Using Reserved Tones Public/Granted day:2009-12-17
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