A method for wireless communications at a user equipment, UE, comprising: receiving (925, 1005) first downlink control information (405-a) corresponding to a first group of downlink transmissions and second downlink control information (405-b) corresponding to a second group of downlink transmissions; calculating a number of information bits for a feedback message comprising first feedback for one or more downlink transmissions of the first group and second feedback for one or more downlink transmissions of the second group, the number of information bits comprising first information bits of the first feedback and second information bits of the second feedback; identifying (915, 1030) a transmission power for the feedback message based at least in part on the calculated number of information bits; transmitting (920, 1035) the feedback message comprising the first feedback and the second feedback using the identified transmission power; receiving third downlink control information corresponding to the first group and fourth downlink control information corresponding to the second group, the third downlink control information being a last downlink control information message prior to transmitting the feedback message and received after the fourth downlink control information; identifying a value of a downlink assignment index of the third downlink control information, the value of the downlink assignment index indicating a total number of downlink control information messages of the second group transmitted to the UE from a base station; and calculating a difference between the value of the downlink assignment index and a number of downlink control information messages associated with the second group received by the UE; and calculating the second information bits of the second feedback based at least in part on the calculated difference. receiving (925, 1005) first downlink control information (405-a) corresponding to a first group of downlink transmissions and second downlink control information (405-b) corresponding to a second group of downlink transmissions; calculating a number of information bits for a feedback message comprising first feedback for one or more downlink transmissions of the first group and second feedback for one or more downlink transmissions of the second group, the number of information bits comprising first information bits of the first feedback and second information bits of the second feedback; identifying (915, 1030) a transmission power for the feedback message based at least in part on the calculated number of information bits; transmitting (920, 1035) the feedback message comprising the first feedback and the second feedback using the identified transmission power; receiving third downlink control information corresponding to the first group and fourth downlink control information corresponding to the second group, the third downlink control information being a last downlink control information message prior to transmitting the feedback message and received after the fourth downlink control information; identifying a value of a downlink assignment index of the third downlink control information, the value of the downlink assignment index indicating a total number of downlink control information messages of the second group transmitted to the UE from a base station; and calculating a difference between the value of the downlink assignment index and a number of downlink control information messages associated with the second group received by the UE; and calculating the second information bits of the second feedback based at least in part on the calculated difference.