A method at a user equipment for hybrid automatic repeat/request, HARQ, communications in a wireless network, comprising: receiving an initial scheduling grant for transmitting a first instance of a HARQ communication over a first set of one or more communication links; transmitting the first instance of the HARQ communication over the first set of one or more communication links based on the initial scheduling grant; receiving, based at least in part on an indication of a nonacknowledgment, NACK, a scheduling grant for a second instance of the HARQ communication over a second set of one or more communication links different from the first set of one or more communication links, wherein the second set of one or more communication links includes at least one communication link in the first set of one or more communication links, and wherein the scheduling grant specifies additional bandwidth for the at least one communication link in the second set of one or more communication links as compared to a bandwidth of the at least one communication link in the first set of one or more communication links; transmitting the second instance of the HARQ communication over the second set of one or more communication links based at least in part on the scheduling grant, wherein the second instance of the HARQ communication is the retransmission of the first instance HARQ communication; and wherein at least one of the transmitting of the first instance of the HARQ communication, the receiving of the scheduling grant for the second instance of the HARQ communication, or the transmitting the second instance of the HARQ communication further comprises transmitting or receiving in a transmission time interval, TTI, less than one subframe in duration. receiving an initial scheduling grant for transmitting a first instance of a HARQ communication over a first set of one or more communication links; transmitting the first instance of the HARQ communication over the first set of one or more communication links based on the initial scheduling grant; receiving, based at least in part on an indication of a nonacknowledgment, NACK, a scheduling grant for a second instance of the HARQ communication over a second set of one or more communication links different from the first set of one or more communication links, wherein the second set of one or more communication links includes at least one communication link in the first set of one or more communication links, and wherein the scheduling grant specifies additional bandwidth for the at least one communication link in the second set of one or more communication links as compared to a bandwidth of the at least one communication link in the first set of one or more communication links; transmitting the second instance of the HARQ communication over the second set of one or more communication links based at least in part on the scheduling grant, wherein the second instance of the HARQ communication is the retransmission of the first instance HARQ communication; and wherein at least one of the transmitting of the first instance of the HARQ communication, the receiving of the scheduling grant for the second instance of the HARQ communication, or the transmitting the second instance of the HARQ communication further comprises transmitting or receiving in a transmission time interval, TTI, less than one subframe in duration.