System and method for IQ imbalance estimation
US9154338B1 · kind B1 · utility
9Cited by
2References
21Claims
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Key dates
| Filing date | Jul 1, 2014 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jul 1, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for estimating IQ imbalance in a communication system are provided, where a first device is configured to perform a self-characterization. The self-characterization is performed by requesting an IQ probe from a second device. The first device receives tones via the IQ probe with frequency separation such that an image related to one IQ imbalance is separated from an image related to another IQ imbalance. IQ imbalance can be estimated by calculating tone to image ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.