Efficient physical layer preamble format
US8331419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | May 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/26132
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for generating a preamble of a data unit for transmission via a communication channel includes generating a first field of the preamble using one of a first sequence or a second sequence, such that the first sequence and the second sequence are complementary sequences such that a sum of out-of-phase aperiodic autocorrelation coefficients of the first sequence and the second sequence is zero; generating, using the other one of the first sequence or the second sequence, an indicator of a start of a second field of the preamble, the second field associated with channel estimation information, such that the indicator of the start of the second field immediately follows the first field; and generating the second field of the preamble.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.