Patent ID: 6857095

Claim:
A method for making data transmission in a telecommunication network more effective, which comprises layer structure protocol means for data transmission, which protocol means comprise at least an upper layer and a lower layer, wherein the purpose of the lower layer ( 12 ) is at least to compose a data unit ( 6 ) to be transmitted to the upper layer ( 14 ) from one or more segments ( 9 a , 9 b ), in which method: one or more errors ( 5 a ) occurring in the received segments 1 a , 1 b ) is detected, wherein said data unit ( 6 ) to be transmitted to the upper layer is composed from one or more segments ( 9 a , 9 b ) which contain one or more errors ( 5 a ), and wherein information on the location of one or more errors ( 5 a ) is also transmitted to the upper layer ( 14 ).