Various embodiments may include methods and systems for improving Quality of Service (QoS) in an end-to-end network connection including a first communication network and a second communication network. A method may include determining, by a network element within the end-to-end network connection, a QoS requirement of the end-to-end network connection, obtaining, by the network element, QoS information of the second communication network from a reporting entity within the second communication network, and adjusting, by the network element, a QoS parameter of the first communication network based on the determined QoS requirement and the obtained QoS information.