Signal transmission apparatus and signal transmission method
US7620420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2004 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Jan 5, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A signal transmission apparatus for transmitting a signal using multiple antenna elements comprises a transmission signal generator configured to convert at least one of a first signal addressed to an arbitrary mobile terminal belonging to a geographical area and a second signal addressed to a specific mobile terminal located in a part of the geographical area into one or more transmission signals to be transmitted using a prescribed beam pattern; a weighting adjustor configured to weight said one or more transmission signals for each of the antenna elements to define the prescribed beam pattern; and a signal synthesizer provided for each of the antenna elements and configured to synthesize the weighted transmission signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.