Congestion control based inter-GNB carrier aggregation

A first network node comprising a primary cell gNodeB (PCell-gNB), the first network node comprising:

• processing circuitry;
• and
• memory coupled with the processing circuitry, wherein the memory includes instructions that when executed by the processing circuitry causes the processing circuitry to perform operations comprising:
• defining a number of media access control flows from the first network node that each forms a source end-point to a destination end-point, wherein the first network node comprises the source end-point and each destination end point comprises a second network node comprising a secondary cell gNB (SCell-gNB) having one or more destination carriers;
• defining a MAC flow packet size that is scaled based on carrier bandwidth where each MAC flow packet has an approximately equivalent spectrum usage and an equivalent quality of service (QoS) on a destination carrier on the second network node;
• and
• transmitting a MAC flow packet to the second network node, wherein the MAC flow packet comprises a bundle of one or more MAC sub-protocol data units (sub-PDUs).