Invention Grant
- Patent Title: Peak-to-average-power-ratio reduction in communication systems
- Patent Title (中): 通信系统的峰均功率比降低
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Application No.: US11901392Application Date: 2007-09-17
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Publication No.: US07974354B2Publication Date: 2011-07-05
- Inventor: Ivan Cosovic
- Applicant: Ivan Cosovic
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Nutter McClennen & Fish LLP
- Agent John J. Penny, Jr.
- Priority: EP06019360 20060915
- Main IPC: H04L27/28
- IPC: H04L27/28
Abstract:
An adaptation apparatus for adapting an input signal, the input signal being digital in the frequency domain and having a peak-to-average-power-ratio in the time domain. The adaptation apparatus has an evaluation unit for evaluating the input signal and for providing an evaluation signal based on an optimization criterion. The adaptation apparatus further has a summing unit for adding the evaluation signal to the input signal in the frequency domain and for providing an output signal in the frequency domain having a lower peak-to-average-power-ratio in the time domain than the signal in the time domain.
Public/Granted literature
- US20080069254A1 Peak-to-average-power-ratio reduction in communication systems Public/Granted day:2008-03-20
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