Methods, systems, and devices for wireless communication are described. A mobile device may be scheduled for resources of multiple transmission time intervals (TTIs) with a downlink control message; some or all of the multiple TTIs may be associated with different hybrid automatic repeat request (HARQ) processes. Each TTI may include data mapped to one transport block (TB), and each TB may be associated with a separate HARQ process. The downlink control message may include an indication of which HARQ processes are associated with resources of the multiple TTIs scheduled by the message. For example, the downlink control message may include a mapping (e.g., a bitmap) that indicates a relationship between each HARQ process and each TTI scheduled by the message. Feedback for TBs of some TTIs may differ, and an acknowledgment of receipt or successful decoding may depend on timing of TTIs in relation to a control message.