A method of retransmitting of a lost packet in a mobile communication system in which multiple copies plus delays occur i.e. after a transmitter has received from a receiver a negative acknowledgement (NACK) signal, which points to a specific data packet, multiple copies of the specific data packet are...http://www.google.de/patents/US20020069388?utm_source=gb-gplus-sharePatent US20020069388 - Method for retransmission of lost packet in fading channels
