Distributed antenna system for MIMO signals

US9231670B2 · kind B2 · utility

Assignee

• COMMSCOPE TECHNOLOGIES LLC · US

Inventors

• Peter Schmid · Rain, DE
• Peter Gunzner · Monheim, DE
• Harald Langer · Wemding, DE
• Stefan Eisenwinter · Buchdorf, DE
• Oliver Braz · Monheim, DE
• Marianna Fabbri · Faenza, IT
• Enrico Maria Fabbri · Forlì, IT
• Samuele Brighenti · Faenza, IT
• Marco Parrucci · S. Michele, IT
• Massimiliano Mini · Forlì, IT
• Thomas Kummetz · Kissing, DE

Key dates

• Filing date: Mar 12, 2013
• Grant date: Jan 5, 2016
• Expiry date: Oct 2, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/0096
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A distributed antenna system includes a master unit configured to receive at least one set of multiple input multiple output (MIMO) channel signals from at least one signal source. The master unit is configured to frequency convert at least one of the MIMO channel signals to a different frequency from an original frequency, and combine the MIMO channel signals for transmission. An optical link couples the master unit with a remote for transceiving the MIMO channel signals. The remote unit is configured to receive the MIMO channel signals to be transmitted over antennas and includes an extension port configured to transceive at least one of the MIMO channel signals. An extension unit is coupled to the remote unit and is configured to frequency convert at least one of the first and second MIMO channel signals from the different frequency back to an original frequency for transmission over an antenna.