Dynamic codebook for mapping feedback to multiple slots

Abstract

Methods, systems, and devices for wireless communications are described. A wireless communications system may support transmission of feedback information for downlink data information in multiple feedback payloads across multiple uplink channel slots. A user equipment (UE) may transmit an acknowledgement for a downlink shared channel message in multiple feedback payloads across multiple different uplink control channel transmission occasions, the payloads being different. For a given downlink shared channel message, a UE may report associated feedback in two or more uplink control channel transmission occasions. The payloads reported in the two or more uplink control channel transmission occasions may be overlapping (e.g., have at least one feedback bit in common) but not the same. The UE may generate the feedback payloads based on downlink assignment indicator (DAI) values indicated by downlink control information (DCI) that schedules a downlink channel transmission.

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