Periodic resource activation and/or release

A wireless device comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
• receive one or more configuration parameters for a cell indicating:
• a periodic resource configuration activatable by predetermined values of:
• a hybrid automatic repeat request process identifier (HARQ ID) field of a first downlink control information (DCI) format;
• and
• a redundancy version (RV) field of the first DCI format;
• receive a DCI based on a second DCI format without the HARQ ID field and/or the RV field;
• and
• activate the periodic resource configuration based on:
• a size of the HARQ ID field and/or the RV field of the DCI being zero;
• and
• the periodic resource configuration being in an inactive state.

A system device comprising:

• a base station comprising:
• one or more first processors;
• and
• first memory storing instructions that, when executed by the one or more first processors of the base station, cause the base station to:
• transmit one or more configuration parameters for a cell indicating:
• a periodic resource configuration activatable by predetermined values of:
• a hybrid automatic repeat request process identifier (HARQ ID) field of a first downlink control information (DCI) format;
• and
• a redundancy version (RV) field of the first DCI format;
• transmit a DCI based on a second DCI format without the HARQ ID field and/or the RV field;
• a wireless device comprising:
• one or more second processors;
• and
• second memory storing instructions that, when executed by the one or more second processors, cause the wireless device to:
• receive the one or more configuration parameters for the cell indicating:
• the periodic resource configuration activatable by the predetermined values of:
• the HARQ ID field of the first DCI format;
• and
• the RV field of the first DCI format;
• receive the DCI based on the second DCI format without the HARQ ID field and/or the RV field;
• and
• activate the periodic resource configuration based on:
• a size of the HARQ ID field and/or the RV field of the DCI being zero;
• and
• the periodic resource configuration being in an inactive state.