Patent ID: 8392780
Filing Date: 2013-03-05
Classification: H04L

Abstract:
1. Method of controlling a relay peer of a relay protocol for sending data unit messages over a relay connection that comprises a sending end-peer of said relay protocol, a receiving end-peer of said relay protocol and one or more relay peers of said relay protocol, each data unit message comprising a respective control section and a payload section, where in accordance with said relay protocol said sending end-peer sends data unit messages arranged in a sequence towards said receiving end-peer, each data unit message being identifiable by a sequence position identifier, and receives feedback messages that by using said sequence position identifiers carry receipt information on a receipt of said data unit messages, where said relay protocol provides for at least a first type and a second type of receipt information, said first type of receipt information being indicative of a correct receipt of a data unit message at one of said relay peers of said relay protocol, and said second type of receipt information being indicative of a correct receipt of a data unit message at said receiving end-peer of said relay protocol, said method comprising: a procedure for forwarding said payload section of said data unit messages towards said receiving end-peer and for forwarding said second type of receipt information towards said sending end-peer, a procedure for performing retransmissions for said data unit messages on a basis of said feedback messages, and a procedure for extracting information from said payload section of said data unit messages in which a procedure for reading a control section detects a presence of a predetermined marker in said control section.