OFDM-based timing synchronization detection apparatus and method
US7263131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2003 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Oct 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2675
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An orthogonal frequency division multiplexing (OFDM)-based synchronization detection apparatus includes an input register that stores data, a shifter that shifts the data from the input register based on the exponent of a quantized correlation coefficient, an adder that sums the shifted data, and a peak detector that determines the peak value from among the summed shifted data. The OFDM-based synchronization detection method involves quantizing correlation coefficients for synchronization detection into 2n-level quantized correlation coefficients (n is an integer not less than 0), shifting input data using the 2n-level quantized correlation coefficients, and detecting synchronization using a shifting result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.