Method and Arrangement in a Telecommunication System for Handling Status Information of Data Units

摘要

A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes (401) that a number of data units that has been transmitted by the sending node are missing. The receiving node sends (402) a reduced status message to the sending node over the radio link, which message is reduced such that it comprises the negative acknowledgement for a first part of missing data units and omits negative acknowledgements for the rest of the missing data units. The omitted negative acknowledgement for the rest of the missing data units will not erroneously be interpreted as correctly received data units by the sending node.

主权项

1. A method in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link, each data unit having a respective sequence number, the method comprising:
determining that a number of data units transmitted by the sending node are missing at the receiving node; and generating a reduced status message comprising negative acknowledgments for a first part of the missing data units and omitting negative acknowledgments for the rest of the missing data units; and sending the status message from the receiving node to the sending node over the radio link.