High speed wireless OFDM transceiver modem
US6760300B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 16, 2000 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Feb 16, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2657
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for receiving and/or transmitting signals using orthogonal frequency division multiplexing, said apparatus being adapted for outputting a first output signal, comprising:a time synchronisation circuit, being adapted for determination of control information from a first signal, said first signal comprising at least of a first part being a non-orthogonal frequency division multiplexing signal and a second part being an orthogonal frequency division multiplexing signal, said determination of control information exploiting said first part of said first signal;said time synchronisation circuit, further being adapted for converting said second part of said first signal into a second signal, being in time domain representation;a transformation circuit at least converting said second signal into a third signal, being in frequency domain representation;a first frequency domain circuit, at least converting said third signal into said first output signal; andsaid second signal and said second part of said first signal being orthogonal frequency division multiplexing signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.