Adaptive primary component carrier switching in massive MIMO based on beamforming calibration status

Non-transitory computer storage media storing computer-usable instructions that when executed by a processor cause operations comprising:

• performing a first calibration check on a first node configured to communicate to a first user equipment, a second user equipment, and a third user equipment via a first component carrier, wherein the first calibration check determines whether there is a break in uplink or downlink reciprocity;
• determining that the first node fails the first calibration check;
• in response to the first node communicating via the first component carrier failing the first calibration check, pairing the first user equipment with a second node communicating via a second component carrier as a primary component carrier to the first user equipment;
• and
• in response to each of (i) the first node communicating via the first component carrier failing the first calibration check and (ii) an uplink capacity of a third node communicating via a third component carrier being greater than an uplink capacity of the second node communicating via the second component carrier, pairing the second user equipment with the third node communicating via the third component carrier as a primary component carrier to the second user equipment.

A method for improving pairing of user equipment to a primary component carrier in a Massive multiple-input multiple-output (MIMO) system, the method comprising:

• performing a first calibration check on a first node configured to communicate with a first user equipment, a second user equipment, and a third user equipment via a first component carrier of a plurality of component carriers, wherein the first node of a plurality of nodes communicates via the first component carrier as the primary component carrier for each of the first user equipment, the second user equipment, and the third user equipment, wherein the first calibration check determines whether there is a break in uplink or downlink reciprocity;
• determining that the first component carrier communicating via the first component carrier fails the first calibration check;
• in response to the first component carrier failing the first calibration check, pairing the first user equipment with a second component carrier of the plurality of component carriers as the primary component carrier to the first user equipment based on an uplink capacity of the second component carrier and a bandwidth of the second component carrier, wherein the uplink capacity of the second component carrier is less than an uplink capacity of a third component carrier, and a bandwidth of the second component carrier is greater than a bandwidth of the third component carrier;
• and
• in response to each of (i) the first component carrier failing the first calibration check and (ii) an uplink capacity of a third component carrier being greater than the uplink capacity of the second component carrier, pairing the second user equipment with the third component carrier of the plurality of component carriers as the primary component carrier to the second user equipment.