A device for a near-real time (RT) radio access network intelligence controller (RIC) is provided. The device includes a transceiver, memory, including one or more storage media, storing instructions, and at least one processor, wherein the instructions, when executed by the at least one processor individually or collectively, cause the device to transmit, to a E2 node, an RIC control message including a radio access network (RAN) configuration structure, and receive, from the E2 node, an RIC control acknowledge message in response to the RIC control message, wherein the RAN configuration structure includes parameters for energy saving, and wherein the parameters include at least one of discontinuous reception (DRX) configuration information or discontinuous transmission (DTX) configuration information of a cell associated with the E2 node.