Methods, a client and a server for handling an MPEG transport stream

摘要

A method for re-transmitting missing packets in an improved manner in association with transmitting an MPEG transport stream between a client and a server of a communication network is provided. New type of customized control packets are introduced which are periodically embedded into the transport stream at the server from which the MPEG transport stream is distributed, wherein each of the embedded control packets is provided with package identification data. A client receiving the MPEG transport stream, including the embedded customized control packets, will, on the basis of the package identification data obtained from a customized control packet be able to identify each of n packets which were inserted by the server into the transport stream subsequent to the respective customized control packet.

主权项

1. A method performed by a server of a communication network for handling an MPEG transport stream, said method comprising:
transmitting, to a client, a first packet of the MPEG transport stream, the first packet being a control packet, wherein the control packet comprises package identification data that enables the client to identify each of subsequent n packets in the MPEG transport stream; transmitting, to the client, a second packet of the MPEG transport stream, wherein the second packet is not a control packet; and receiving, from the client, a re-transmission request of one or more packets determined as missing when the second packet received by the client is not an expected packet based on comparing the second packet to the package identification data extracted from the first packet available at the client.