Distributed antenna system
US9859982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Feb 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A distributed antenna system includes a headend device for generating a downlink transmission signal by combining a plurality of downlink RF signals in different frequency bands, received from a plurality of base stations, and converting the downlink transmission signal into a downlink optical signal, a main remote device for receiving the downlink optical signal from the headend device, converting the downlink optical signal into the downlink transmission signal, and amplifying the plurality of downlink RF signals included in the downlink transmission signal, and a sub-remote device for receiving the downlink transmission signal distributed from the main remote device, and amplifying the plurality of downlink RF signals included in the received downlink transmission signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.