Classification of wireless LAN signals
US8477750B2 · kind B2 · utility
16Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2011 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Jan 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for classifying an input signal suspected of being a wireless LAN signal. Bursts are isolated based on an analysis of an average power signal that is derived from the input signal. A correlation-based test is performed to determine if the input signal contains a Barker code typical of DSSS transmissions. Another correlation-based test is performed to determine of the input signal contains a long training sequence typical of OFDM transmissions. The results of the two tests are used to classify the input signal as being DSSS, OFDM or neither.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.