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Methods and systems for beam steering crest factor reduction (CFR) clip noise
US8995570B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995570-B2 |
| Application number | US-201313797408-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 12, 2013 |
| Priority date | Mar 12, 2013 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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Signal-to-noise ratios (SNRs) and/or amplifier performance can be improved in crest factor reduction (CFR) applications by steering clipping noise in a different direction than the data signal achieving upon reception. Indeed, using clipping noise signals that have a different amplitude-phase relationship than the input/baseline signal causes the clipping noise signal and data signal to exhibit different antenna patterns, effectively steering the clipping noise in a different direction than the data signal. For instance, clipping noise can be steered away from potential receivers to improve received signal quality. In addition, higher magnitude clipping noise can be used to achieve improved power amplifier performance without increasing received SNR.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for crest factor reduction (CFR), the method comprising: receiving an input signal having an initial magnitude exceeding a CFR threshold; and introducing a clipping noise signal into the input signal to produce an output signal having a resulting magnitude that is less than or equal to the CFR threshold, wherein the clipping noise signal and the input signal have different amplitude-phase relationships such that a resulting phase of the output s…
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- H04B1/10Primary
Electricity · mapped topic
Electricity · mapped topic
- H04L27/2623Primary
Electricity · mapped topic
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- What does patent US8995570B2 cover?
- Signal-to-noise ratios (SNRs) and/or amplifier performance can be improved in crest factor reduction (CFR) applications by steering clipping noise in a different direction than the data signal achieving upon reception. Indeed, using clipping noise signals that have a different amplitude-phase relationship than the input/baseline signal causes the clipping noise signal and data signal to exhibit…
- Who is the assignee on this patent?
- Futurewei Technologies Inc
- What technology area does this patent fall under?
- Primary CPC classification H04B1/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).