Initial parameter estimation in OFDM systems
US7602852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Apr 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2607
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A coarse estimate of a location of an information carrying part of a symbol in a received signal in a telecommunication system is generated. This involves generating correlation values by correlating the received signal with a delayed received signal. A maximum correlation value of the correlation values is identified, and a duration in time during which the correlation values are greater than or equal to a predetermined percentage of the maximum correlation value is identified, wherein the duration in time begins at a first moment in time and ends at a second moment in time. The coarse estimate of the location of the peak correlation value is set equal to a moment in time between the first moment in time and the second moment in time, for example, a midpoint between the first moment in time and the second moment in time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.