Robust transmit/feedback alignment
US8437424B2 · kind B2 · utility
1Cited by
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14Claims
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Assignee
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Key dates
| Filing date | Mar 5, 2010 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jun 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03343
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Performing digital predistortion (DPD) for widely spaced narrowband signals, such as the signal used in multi-carrier GSM, can be very difficult. Here, a system is provided the performs DPD for widely spaced narrowband signals. In particular, this system uses a polynomial curve for values of a cross-correlation function (above a predetermined threshold) to determine a delay estimate, which allows for a more robust and accurate system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.