Enhanced metric for bit detection on fading channels with unknown statistics
US6952561B1 · kind B1 · utility
32Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Oct 4, 2005 |
| Priority date | — |
| Expiry date | Feb 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03171
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A universal mobile telecommunications system (UMTS) receiver uses Pilot Symbol Assisted Modulation (PSAM) in demodulating a received Binary Phase Shift Keying (BPSK) signal. The UMTS receiver uses a ratio of the transmitted energy per pilot symbol to the transmitted energy per data symbol as an index into a look-up table to return a value for a scale factor for use in demodulation of the received signal, which provides better performance during periods when the fading distribution is unknown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.