Patent ID: 9136986
Filing Date: 2015-09-15
Classification: H04L,H04W

Abstract:
1. A method for controlling re-transmission in a user equipment supporting uplink spatial multiplexing, comprising: detecting an uplink grant on a physical downlink control channel, the uplink grant being valid for at least one transport block; detecting that at least one transport block is disabled, such that no grant is associated with the at least one disabled transport block; and interpreting the at least one disabled transport block as an acknowledgement (ACK) indication of a previous transmission corresponding to the disabled transport block irrespective of an acknowledgement/non-acknowledgement (ACK/NACK) indication received on a reception status feedback channel for the previous transmission; wherein the detecting steps are carried out at a first protocol layer, and the interpreting step includes delivering the ACK indication h the first protocol layer to a second protocol layer; and wherein the first protocol layer is a physical layer and the second protocol layer is higher protocol layer.