Semi-persistent scheduling release

A base station comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the base station to:
• transmit one or more radio resource control (RRC) messages comprising:
• a first configuration parameter, of a first semi-persistent scheduling (SPS) configuration, indicating a first hybrid automatic repeat request (HARQ) codebook identifier;
• a second configuration parameter, of a second SPS configuration, indicating a second HARQ codebook identifier, wherein the second HARQ codebook identifier is the same as the first HARQ codebook identifier;
• and
• a third configuration parameter indicating a state that is mapped to the first SPS configuration and the second SPS configuration;
• transmit a downlink control information (DCI), wherein:
• a value of one or more bits of a HARQ process number field of the DCI indicates the state;
• and
• the DCI indicates deactivation of the first SPS configuration and the second SPS configuration;
• and
• receive an acknowledgement.