Pilot interference cancellation
US8630602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2009 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Apr 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.