Method for transmitting data in broadcast or multicast scenario, involves transmitting data packets as multicast or broadcast to multiple users by transmitter, where each user informs sender about packet, which is not received correctly

摘要

The method involves transmitting data packets as multicast or broadcast to multiple users by a transmitter. The sender is informed by the user about the packet, which is not received correctly. The transmitter sends data packets, which are not received correctly by the users either alone or as linear combination with other packets. The data packet combined for re-transmission is determined by selecting one of the data packets which is received correctly by a user. The parameter is set to determine the maximum number of data packets, which are to be coded together.