Multiple output multicarrier transmitter and methods for spatial interleaving a plurality of spatial streams
US7570698B2 · kind B2 · utility
5Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2004 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2626
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multicarrier transmitter performs bit-interleaving suitable for transmitting more than one spatial stream over a multicarrier communication channel. The multicarrier transmitter may include a bit-grouping shifter to shift QAM symbol-bit groupings of a spatial stream among subcarriers of the multicarrier communication signal, and a bit-position permuter to rotate bits among bit positions within subgroupings of the QAM symbol-bit groupings of the second spatial stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.