Device and method for non-contiguous multiple resource unit in a wireless network
US-2024421948-A1 · Dec 19, 2024 · US
Direct detection of optical orthogonal frequency division multiplexing (OFDM) signals
US8934780B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8934780-B2 |
| Application number | US-201213710428-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 10, 2012 |
| Priority date | Dec 9, 2011 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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Techniques for timing synchronization in an optical orthogonal frequency division multiplexing (OOFDM) system includes providing a time-domain training symbol having a symmetric distribution and producing the training symbol by transmitting a real-valued PN sequence on each subcarrier under the OOFDM. The training sequence includes an initial value, followed by an odd length palindromic sequence of values.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for computing timing synchronization in an optical communication system based on optical orthogonal frequency division multiplexing (OOFDM) and direct detection of OOFDM, comprising: providing a time-domain training symbol comprising a first portion and a second portion that is a symmetric image of the first portion around a center value that is not a part of the first portion and the second portion, the first portion being preceded by an initial va…
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- H04L27/2613Primary
Electricity · mapped topic
- H04J11/00Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8934780B2 cover?
- Techniques for timing synchronization in an optical orthogonal frequency division multiplexing (OOFDM) system includes providing a time-domain training symbol having a symmetric distribution and producing the training symbol by transmitting a real-valued PN sequence on each subcarrier under the OOFDM. The training sequence includes an initial value, followed by an odd length palindromic sequenc…
- Who is the assignee on this patent?
- Zte Usa Inc
- What technology area does this patent fall under?
- Primary CPC classification H04L27/2613. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 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).