Remote distributed antenna system
US9525524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/561
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A distributed antenna system is provided that frequency shifts the output of one or more microcells to a 60 GHz or higher frequency range for transmission to a set of distributed antennas. The cellular band outputs of these microcell base station devices are used to modulate a 60 GHz (or higher) carrier wave, yielding a group of subcarriers on the 60 GHz carrier wave. This group will then be transmitted in the air via analog microwave RF unit, after which it can be repeated or radiated to the surrounding area. The repeaters amplify the signal and resend it on the air again toward the next repeater. In places where a microcell is required, the 60 GHz signal is shifted in frequency back to its original frequency (e.g., the 1.9 GHz cellular band) and radiated locally to nearby mobile devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.