A method for transmitting a plurality of data frames in a mobile telecommunications
system is disclosed. Each data frame has a frame sequence number and a data block.
The method comprises the steps of segmenting a data frame into a plurality of data
segments for retransmission, assigning the frame sequence number to each of said
data segment, and assigning respective sequence numbers to the data bytes of each
data segment to distinguish the first and last bytes of said data segment.
