The specification and drawings present a new method, system, apparatus and software product for implicit signaling and defining uplink allocations for an acknowledgment of downlink data using user downlink resource allocations, e.g., combined with user equipment detection of other user's allocations for data-non-associated signaling of hybrid automatic request process (HARQ) control information. Sequences of the downlink resource allocations are used to pre-define associated uplink control signaling resources.