Space-time transmit diversity (STTD) for multiple antennas in radio communications
US7266157B2 · kind B2 · utility
24Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Oct 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0618
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A closed-loop STTD system extended from an open-loop STTD system adopting four antennas transmission diversity technique and its signal transmitting method are disclosed. The signal transmitting method in a closed-loop space-time transmit diversity (STTD) system having a plurality of transmission antennas, includes: space-time coding symbols to be transmitted; classifying the coded symbols to certain groups; and multiplying different weight values to each transmission symbol group and transmitting them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.