1. A method of controlling an operation of an application, comprising: obtaining, by one or more processors of at least a first network node, network identification information and cell load information for a first bearer during a first time period; computing, by the one or more processors, an actual transport block size per physical resource block (ATpP) slope for the first bearer during the first time period, based on the cell load information; and exporting, by the one or more processors, the network identification information and the ATpP slope to a node processor of a second network node to control an operation of an application using the first bearer.