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US 12,732,217 B2Granted
Techniques for diminishing latency in a distributed antenna system
AssigneeOutdoor Wireless Networks LLC
InventorsTheodore E. Dahlen, Christopher Goodman Ranson
Life of this patent
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Abstract
Techniques are provided for diminishing latency in a DAS fronthaul network configured to convey time-domain transport data, e.g., time-domain digital transport data or time-domain digital data. Other techniques are provided for obtaining higher DAS fronthaul efficiency.
Claims13
A distributed antenna system (DAS) serving a base station, the distributed antenna system comprising:
- a donor card configured to couple the base station to the DAS and to communicate base station signals therebetween;
- a plurality of radio units (RUs);
- and
- a switched Ethernet network coupling the plurality of RUs and the donor card;
- wherein the DAS is configured so that time-domain digital data, related to the base station signals, is communicated over the switched Ethernet network in packets having a fixed latency, wherein packet size varies as a function of carrier bandwidth associated with the base station signals.
2 more elements
A distributed antenna system (DAS) serving a base station, the distributed antenna system comprising:
- a donor card configured to couple the base station to the DAS and to communicate base station signals therebetween;
- and
- a plurality of radio units (RUs) coupled to the donor card via a switched Ethernet network;
- wherein at least one of the donor card and each of the plurality of RUs each comprise a fractional resampler supporting run-time changes of a re-sampling ratio based upon carrier bandwidth related to the base station signals.
1 more element
Dependencies are inferred from the claim text.