Interleaving apparatus and method for orthogonal frequency division multiplexing transmitter
US7370252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Apr 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/1042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An interleaving apparatus and method for an OFDM transmitter are provided. The interleaving apparatus comprises a memory unit, a memory write/read control unit, a memory access address generation unit, and a second permutation and output selection unit. The memory unit includes a plurality of memory banks, which are capable of being independently controlled so that data can be written or read in/from the memory banks, each having memory cells arranged in an N×M matrix structure. The memory write/read control unit generates control signals to write/read data in/from the memory unit. The memory access address generation unit generates a memory access address used to write/read data in/from the memory unit in response to the memory write/read control signals. The second permutation and output selection unit rearranges the positions of data bits output from the memory unit and outputs the position-rearranged data bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.