Wireless communication apparatus
US7532681B2 · kind B2 · utility
19Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0204
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Before data is transmitted from a plurality of antennas, a plurality of known symbol sequences are transmitted from these antennas. Each known symbol sequence contains a plurality of known symbols having different subcarrier arrangements. Known symbols transmitted from different antennas have different subcarrier arrangements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.