Method and apparatus for selective acknowledgement

摘要

A transceiving unit receives at least one sequence of data blocks where the data blocks each have a respective sequence number. The receipt of the data blocks is monitored to establish whether the data blocks have been successfully received or not. A receipt report is selectively generated based at least in part on the performed monitoring. The receipt report includes at least one data part in accordance with a predetermined data format, which includes at least a first data portion with information identifying a sequence number of one data block in the sequence that has not been successfully received and a second data portion with information on whether successful receipt has been achieved for a number of data blocks in the sequence having sequence numbers following directly after the identified sequence number. The receipt report is provided in a generated data block that is transmitted.