Aspects of the present disclosure provide a mechanism for flexible control information reporting within a wireless communication network by mapping a plurality of hybrid automatic repeat request (HARQ) processes to respective locations in a payload format of an uplink control channel. In response to receiving a request to transmit acknowledgment information corresponding to one or more selected HARQ processes, the acknowledgment information corresponding to the one or more selected HARQ processes may be included in the respective locations of the payload of a current uplink control channel based on the mapping. A remaining portion of the payload of the current uplink control channel may be flexibly utilized for other control information.