Generating downlink sector beams based on uplink channel estimates utilizing a base band unit pool for modular massive multiple-input multiple-output arrays

A method, comprising:

• determining, by a system comprising a processor via a group of base stations using frequency division duplexing, uplink channel estimates of an uplink channel wirelessly coupling a user equipment to the group of base stations via respective modular antenna elements of the group of base stations, wherein determining the uplink channel estimates comprises determining the uplink channel estimates utilizing respective demodulation reference signals corresponding to data signals associated with the user equipment that have been received by at least one base station of the group of base stations;
• based on the uplink channel estimates, determining, by the system, a downlink channel estimate of a downlink channel wirelessly coupling, using frequency division duplexing, a base station of the group of base stations to the user equipment via ones of the respective modular antenna elements corresponding to the base station;
• and
• based on the downlink channel estimate, generating, by the system, a group of downlink sector beams to be transmitted, via the ones of the respective modular antenna elements corresponding to the base station, to the user equipment.

A non-transitory machine-readable medium, comprising executable instructions that, when executed by base station equipment comprising a processor, facilitate performance of operations, comprising:

• deriving, using a base band unit pool of base station equipment, an uplink channel characteristic of an uplink channel wirelessly coupling, using respective modular antenna panels of the base station equipment of the base band unit pool via frequency division duplexing, a user equipment to the base band unit pool, wherein deriving the uplink channel characteristic comprises deriving the uplink channel characteristic utilizing respective demodulation reference signals corresponding to data signals associated with the user equipment that have been received by at least some of the base station equipment of the base band unit pool;
• based on the uplink channel characteristic, deriving a downlink channel characteristic of a downlink channel wireless coupling, using a portion of the respective modular antenna panels via the frequency division duplexing, the user equipment to the base station equipment of the base band unit pool;
• and
• based on the downlink channel characteristic, generating a group of downlink sector beams to be transmitted, using the downlink channel via the portion of the respective modular antenna panels, to the user equipment.