Method and apparatus for down-link feedback multiple antenna transmission in wireless communication system
US7236478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Nov 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for down-link multiple-antenna transmission in a wireless communication system is provided wherein a base station section comprises: a down-link specific physical channel unit, a second common pilot channel unit, a beam weighting unit of common pilot channels, a multiplexing and summing unit, a down-link specific physical channel weighting unit, a specific physical channel and second common pilot channel multiplexing unit, an antenna array unit, a multiple-beam weight vector set unit, up-link specific physical channels, and a feedback bit information unit; and a service cell section or mobile station section comprises: an antenna unit, a channel evaluating unit, a beam selection unit, and a beam quantizing unit. The space characteristics of the physical channels are utilized reasonably. Accordingly, a beam gain is obtained, interference is suppressed effectively, and the apparatus is easy to operate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.