US 10,856,238 B2 · Selective multichannel amplification in a distributed antenna system (DAS)

Abstract

Embodiments of the disclosure relate to selective multichannel amplification in a distributed communication system. In this regard, a remote antenna unit (RAU) in the distributed communication system receives downlink digital signals associated with downlink channels having respective downlink channel bandwidths. The RAU digitally scales the downlink digital signals based on respective digital scaling factors to generate scaled downlink digital signals having a substantially equal channel power density in the downlink channels. By digitally scaling the downlink digital signals to provide the substantially equal channel power density in the downlink channels, it is possible to provide substantially uniform radio frequency (RF) coverage range across the downlink channels, thus helping to improve overall RF coverage and user experience in a coverage area of the distributed communication system.

Claims22

Dependent claims

A communication system, comprising:

an optical communications infrastructure;
and
a plurality of remote units (RUs) configured to:
receive a plurality of downlink digital communications signals;
and
uplink a plurality of uplink digital communications signals;
wherein one or more RUs among the plurality of RUs each comprises a plurality of channel circuits, the plurality of channel circuits configured to:
receive a plurality of downlink digital signals at a plurality of signal power levels to be communicated in a plurality of downlink channels having a plurality of downlink channel bandwidths, respectively;
and
digitally scale the plurality of downlink digital signals based on a plurality of digital scaling factors determined according to the plurality of downlink channel bandwidths to generate a plurality of scaled downlink digital signals having a substantially equal channel power density in the plurality of downlink channels,
wherein the plurality of channel circuits is configured to receive the plurality of downlink digital signals at the plurality of signal power levels that is substantially equal.

8 more elements

A communication system, comprising:

an optical communications infrastructure;
and
a plurality of remote units (RUs) configured to:
receive a plurality of downlink digital communications signals;
and
uplink a plurality of uplink digital communications signals;
wherein one or more RUs among the plurality of RUs each comprises a plurality of channel circuits, the plurality of channel circuits configured to:
receive a plurality of downlink digital signals at a plurality of signal power levels to be communicated in a plurality of downlink channels having a plurality of downlink channel bandwidths, respectively;
and
digitally scale the plurality of downlink digital signals based on a plurality of digital scaling factors determined according to the plurality of downlink channel bandwidths to generate a plurality of scaled downlink digital signals having a substantially equal channel power density in the plurality of downlink channels, wherein
each of the plurality of channel circuits is configured to mathematically multiply magnitudes of digital samples representing a respective downlink digital signal among the plurality of downlink digital signals by a respective digital scaling factor to generate a respective scaled downlink digital signal among the plurality of scaled downlink digital signals.

8 more elements

A communication system, comprising:

an optical communications infrastructure;
and
a plurality of remote units (RUs) configured to:
receive a plurality of downlink digital communications signals;
and
uplink a plurality of uplink digital communications signals;
wherein one or more RUs among the plurality of RUs each comprises a plurality of channel circuits, the plurality of channel circuits configured to:
receive a plurality of downlink digital signals at a plurality of signal power levels to be communicated in a plurality of downlink channels having a plurality of downlink channel bandwidths, respectively;
and
digitally scale the plurality of downlink digital signals based on a plurality of digital scaling factors determined according to the plurality of downlink channel bandwidths to generate a plurality of scaled downlink digital signals having a substantially equal channel power density in the plurality of downlink channels, wherein
each of the one or more RUs further comprises a channel identifier and router configured to receive a downlink digital communications signal among the plurality of downlink digital communications signals.

8 more elements

Dependencies are inferred from the claim text.

Selective multichannel amplification in a distributed antenna system (DAS)

Life of this patent

Selective multichannel amplification in a distributed antenna system (DAS)

Life of this patent

Abstract

Claims22