Patent ID: 8134932

Claim:
A method in an arrangement integrated in or attached to a receiver unit in a wireless multi-antenna communication system said receiver unit equipped to receive data streams sent from one or more transmitter antennas for transmission of data packets from a transmitting unit comprising: receiving an indication from a HARQ-process in case a data packet has been erroneously received; deriving a metric indicating a measure of the received information content of said data packet from its first transmission and subsequent retransmissions; providing to the transmitting unit a feedback information element based on said metric such that the transmitting unit can determine its resource need for the re-transmission of said data packet; whereby the calculation of said metric includes a measure of the characteristics of the channel on which the previous transmissions of said data packet have been received; whereby said characteristics include the link capacity of the channel; and whereby the link capacity is calculated as a normalized value that is independent of one or more of the applied coding, modulation, and packet size.