Apparatus and method of reconstructing amplitude-clipped signal
US7907511B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Mar 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/59
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless data transmission method and apparatus are provided for compensating a distortion due to a clipped amplitude when an amplitude of a signal is clipped to reduce a peak to average power ratio (PAPR) in a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme and a transmit diversity method using an orthogonal coding. The wireless data transmission apparatus includes a coding unit which Space-Time block codes a first data stream into a plurality of second data streams, the plurality of second data streams being orthogonal to each other; an inverse Fourier transform unit which performs an inverse Fourier transform of each of the Space-Time block coded second data stream and generates a plurality of time domain signals; and a plurality of amplitude clipping units which clips an amplitude of each of the plurality of generated time domain signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.