Method and system for detecting adjacent channel interference from OFDM/OFDMA based broadband wireless access
US7848221B2 · kind B2 · utility
5Cited by
7References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 14, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jan 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a method and system for detecting adjacent channel interference between two systems having neighboring frequencies. The method and system calculates a Fast Fourier Transform (FFT) output for one or more upper and lower frequency side null subcarriers and center data subcarriers of a frequency channel. Power values are calculated for the upper and lower frequency side null subcarriers and the center data subcarriers for use in determining a presence of adjacent channel interference (ACI).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.