Patent ID: 6289003
Filing Date: 2001-09-11
Classification: H04L,Y10S

Abstract:
A method for transmitting packet switched data in a mobile communications system between a transmitter-receiver pair using an ARQ protocol, which mobile communications system comprises a network part and at least one subscriber terminal and a bidirectional radio connection between the network part and the subscriber terminal, and the transmitter-receiver pair is formed by the network part and the subscriber terminal, the method comprising:inserting packet switched data to be transmitted on the bidirectional radio connection in transmission units:the receiver orders the first transmission of transmission units;the transmitter sends the transmission units according to the order of the first transmission;checking the quality of each received transmission unit indepently;the receiver orders the retransmission of those received transmission units that were not of a good enough quality;the transmitter sends the transmission units according to the retransmission order;retransmission-ordering and retransmission are repeated until the quality measured by the receiver from each packet exceeds the predetermined quality level and the data which is to be transmitted and consists of packets is transmitted from the transmitter to the receiver.