The solution supports two validated Airspan RUs; both have CBRS variants.
The following sections and figures show a more detailed overview of the validation that we performed in the Private Wireless solution. The Dell Engineering team selected multiple UEs, from multiple vendors, and completed end-to-end 5G CBRS (band N48) testing and validation.
AV2700
Airspan implements the standard 7.2 O-RAN split as described below:
- DU—It requires a R740 with an ACC100 FEC card installed for packet offloading.
- CU—A variety of PowerEdge servers can take on the CU role. Dell Engineering has validated the Airspan CU on a PowerEdge R750 server (see the Bill of Materials).
- RU and RAN components—The ACP performs all management of RU and RAN components as shown in the following figure.
- 5GC—It is deployed directly to an edge node. 5GC and fully disaggregated (7.2 split) RAN stack with RU, CU, and DU are deployed to separate servers.
- UE—Two different UEs (the AirSpot 9621 and the Telit FT980) were used in our lab environment. Both are 5G CBRS-capable (band N48).
Dell has validated the AV2700 and 7.2 3GPP split. Several topologies are acceptable, but we found that routing all in-band traffic through the leaf switch is the most efficient. The RU itself has a female QSFP connector, so uplinking the RU to a leaf switch (such as the S5232) is simple.
AV1901
The AV1901 is a full, all-in-one gNodeB. Aside from the 5GC host, there are no additional servers required for the DU/CU (as indicated in the following list).
- The ACP performs all management of RU and RAN components as shown in the following figure.
- A 5GC is deployed directly to an edge node.
- UE validated in our lab environment: the Airspot 7621
ACP
After you complete all the Airspan deployment instructions and your system is live, you will have:
- 5GC and, depending on the RU selected, a fully disaggregated (7.2 split) RAN stack with RU, CU and DU deployed to separate servers.
- All management of RU and RAN components performed through the ACP, as shown in the following figure.