Method and system for OFDM frame boundary detection in a vehicular multipath channel
US8731117B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Sep 22, 2010 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jan 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2695
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of a method for OFDM frame boundary detection in a vehicular multipath channel include use of a maximal channel energy instead of a strongest path for detecting a frame boundary. A sample of OFDM data inputs is processed using long preamble local copy correlation and integration to obtain a channel energy which sums all paths of the multipath. A plurality of such channel energies obtained within a given time period are searched for a maximal channel energy, which, when found, is used to detect the frame boundary.
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