Cooperative reception diversity apparatus and method based on signal point rearrangement or superposition modulation in relay system
US8577284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2008 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Mar 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0097
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for method for providing cooperative reception diversity based on signal point rearrangement and superposition modulation performed at a relay station is discussed. A first technique performs superposition modulation at a relay station and a second technique employs signal point rearrangement at a relay station. The superposition modulation is a different type of superposition modulation than that employed by the transmitter of the signal. Similarly, the signal point rearrangement is a different type of signal point rearrangement than that employed by the transmitter of the signal. As a result of the superposition modulation or signal point rearrangement performed by the relay station, the reliability of a signal received by a reception unit at the destination receiver is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.