Closed loop transmit diversity antenna verification using trellis decoding
US7035343B2 · kind B2 · utility
10Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Mar 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0654
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A trellis decoder determines the most likely transmitted phase in response to previously requested phase adjustments and observed transmitted symbols. Maximum a posteriori (MAP) decoding also may be used. Alternatively, the identified likely transmitted phase is used for data demodulation. This and related features have the benefit of decreasing the effect of phase discrepancies introduced by erroneous reception of phase adjustment information, resulting in improved error rates, and a corresponding increase in system capacity, data throughput, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.