Multi-carrier transmission method and data transmitter
US6510133B1 · kind B1 · utility
77Cited by
14References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1999 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jan 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2626
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Equipped with a plurality of mapping blocks 102 and 103 that carry out mappings of different rates, signals subjected to low-speed mapping are placed in the periphery of a band to which a plurality of sub-carriers are assigned at an interval corresponding to the symbol rate. The signal placed on the frequency axis in this way is converted to a time waveform through inverse Fourier transformation block 105, converted to a symbol time series through parallel/serial conversion block 106, then quadrature-modulated and transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.