Communication system and method using a relay node
US7525939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Aug 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W40/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication node relays a transmission signal transmitted from a desired source node to a target destination node among multiple source nodes and multiple destination nodes. The communication node includes a first unitary matrix estimation unit that estimates a first unitary matrix by performing singular value decomposition involving one or more channel matrices between the relay node and the source nodes other than the desired source node; a second unitary matrix estimation unit that estimates a second unitary matrix by performing singular value decomposition involving one or more channel matrices between the relay node and the destination nodes other than the target destination node; and a transmission unit configured to transmit a relaying signal generated by multiplying a received signal by the first and second unitary matrices toward the target destination node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.