A method comprises detecting (402) QUIC packets transmitted (401, 406) between network elements (UE, content server) of a communication system. Based on a detected QUIC packet, the method comprises obtaining (403), at a first measurement point and at a second measurement point, user plane customer experience measurement information and optionally context information. The method comprises providing (404), to the first measurement point, user plane customer experience measurement information and optionally context information, obtained at the second measurement point. The method comprises correlating (405) user plane customer experience measurement information obtained at the first measurement point, with user plane customer experience measurement information received from the second measurement point, by using context information obtained at the first measurement point and context information received at the first measurement point.