CPC H04L 5/0055 (2013.01) [H04L 1/1671 (2013.01); H04W 72/0453 (2013.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01)] | 20 Claims |
1. A wireless transmit receive unit (WTRU) comprising a processor and memory configured to:
receive downlink control information (DCI) for a downlink transmission, the DCI comprising a physical uplink control channel (PUCCH) parameter, the PUCCH parameter corresponding to a PUCCH resource index;
receive the downlink transmission in accordance with the DCI;
determine one or more resource blocks to be used to transmit a PUCCH transmission based on at least the PUCCH parameter received in the DCI;
determine hybrid automatic repeat request (HARQ) feedback for the downlink transmission, wherein the HARQ feedback for the downlink transmission corresponds to one of a HARQ acknowledgment (ACK) or a HARQ non-acknowledgment (NACK);
select at least one cyclic shift that indicates the HARQ feedback for the downlink transmission, wherein the determined cyclic shift that indicates the HARQ ACK/NACK is selected from a subset of available cyclic shifts, the subset of the available cyclic shifts is determined based on at least the PUCCH parameter comprised in the DCI, at least a first cyclic shift of the subset of the available cyclic shifts indicates the HARQ ACK, and at least a second cyclic shift of the subset of the available cyclic shifts indicates the HARQ NACK; and
transmit the PUCCH transmission via the one or more resource blocks using the selected at least one cyclic shift.
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