Methods and arrangements in a telecommunication system

摘要

Disclosed is a method for controlling re-transmission in a user equipment supporting uplink spatial multiplexing. The method includes detecting an uplink grant on a physical downlink control channel, the uplink grant being valid for at least one transport block. The method also includes detecting that at least one transport block is disabled, such that no grant is associated with the at least one disabled transport block. The method further includes interpreting the at least one disabled transport block as an acknowledgement (ACK) of a previous transmission corresponding to the disabled transport block irrespective of which indication is received on the reception status feedback channel for the previous transmission.