Method and a user equipment (UE) for transport layer optimization using a preemptive cross layer signaling

The embodiments herein achieve a method and a UE for enabling a transport layer optimization using a preemptive cross layer signaling. The method includes transmitting at least one information to the NR L2 receiver for the transport layer optimization for a data flow(s). The at least one information includes at least one of a configuration for requesting a buffer status of the NR L2 receiver, a policy to inspect data packets of the data flow(s), a configuration for enabling or disabling the transport layer optimization, a retransmission timeout (RTO) and a round trip time (RTT) of the data flow(s), an impending RTO value of the data flow(s) and a threshold value of a buffer size. Further, the method includes enabling the transport layer optimization based on the at least one information received from the NR L3 receiver to avoid receiving of duplicate data packets from a TCP sender.