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Method to increase signal-to-noise ratio of a cyclic-prefix orthogonal frequency-division multiplex signal
US9042467B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9042467-B2 |
| Application number | US-201313874506-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 1, 2013 |
| Priority date | May 1, 2013 |
| Publication date | May 26, 2015 |
| Grant date | May 26, 2015 |
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Abstract
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A method to decode an orthogonal frequency-division multiplex (OFDM) signal data block that includes symbol-data in a data interval, repeated-data in a cyclic-prefix (CP) guard interval, and noise. The signal is often called a CP-OFDM signal. The method includes determining a first data set based on data samples taken during a first time window of a data block. The method also includes determining a second data set based on data samples taken during a second time window of the data block, wherein the second time window is selected so that the second data set includes repeated-data not present in the first data set. The method also includes combining the first data set and the second data set in a manner effective to increase a signal-to-noise ratio of the signal. The combining process increases signal data energy more than noise data energy.
First claim
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I claim: 1. A method to decode an orthogonal frequency-division multiplex (OFDM) signal, said method comprising: receiving an OFDM signal, wherein the OFDM signal includes a data block characterized by symbol data in a data interval, repeated-data in a cyclic-prefix (CP) guard interval, and noise, wherein a portion of the symbol data is not repeated in the OFDM signal; determining a first data set based on data samples taken during a first time window of the data block; determ…
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- H04L27/2607Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9042467B2 cover?
- A method to decode an orthogonal frequency-division multiplex (OFDM) signal data block that includes symbol-data in a data interval, repeated-data in a cyclic-prefix (CP) guard interval, and noise. The signal is often called a CP-OFDM signal. The method includes determining a first data set based on data samples taken during a first time window of a data block. The method also includes determin…
- Who is the assignee on this patent?
- Delphi Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification H04L27/2607. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 26 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).