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US 2026/0312607 A1Published application
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.
Claims7
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 time-domain digital data therebetween;
- a master unit configured to couple an open radio access network (O-RAN) distributed unit to the DAS and to communicate O-RAN data therebetween;
- at least one intermediate combining node (ICN);
- a plurality of radio units (RUs) coupled to the master unit through the ICN;
- a switched Ethernet network;
- and
- wherein the plurality of RUs, the master unit, ICN, and RUs are coupled to each other via the switched Ethernet network;
- wherein the ICN is configured to fragment the O-RAN data and combine fragments of the O-RAN data with the time-domain digital data and communicate the combined data to RUs.
5 more elements
A method for defining a packet layout template, the method comprising:
- receiving a list of carrier-antenna configurations whose data is to be transmitted within a distributed antenna system (DAS), and a bandwidth of each carrier;
- determining a number of blocks of data of the packet layout template using the bandwidth of each carrier and a number of antenna ports of each carrier;
- using the number of blocks, creating the packet layout template including at least one block, wherein a number of the at least one block equals a maximum transmission unit (MTU) level or a number of blocks so that there are not remaining blocks to place in the packet layout template;
- assigning a unique packet layout identifier to the packet layout template;
- determining whether all blocks have been included in at least one packet layout template;
- and
- determining that all of the blocks have been included in the at least one packet layout template, then transferring each packet layout template and corresponding packet layout identifier to each component of the DAS configured to at least one of:
- construct packets according to each packet layout template and to extract the data from each packet formed according to a packet layout template.
5 more elements
Dependencies are inferred from the claim text.