Patent ID: 6031818
Filing Date: 2000-02-29
Classification: H04L

Abstract:
A data packet retransmission arrangement comprising:at least one client unit associated with at least one destination;a source of data packets, said source transmitting the data packets to said at least one client unit using a real-time transport protocol, said data packets representing real-time audio or video, said client unit operable for receiving said data packets on behalf of said at least one destination; andat least one server unit operable to receive a copy of each said data packet that said source transmits to said client unit;said client unit being further operable, responsive to a received packet being indicative of an error, for sending to said server, rather than to said source, a request to retransmit that one of the data packets that said server received from said source that will correct said error;wherein said at least one client unit and said at least one server unit operate independently of said source and said at least one destination.