Techniques for Periodic Resource Activation or 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, to a wireless device, one or more configuration parameters for a cell indicating a periodic resource configuration, wherein activation of the periodic resource configuration is based on:
• 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, wherein a first field, among the HARQ ID field and the RV field, is absent in the second DCI format;
• and
• activate the periodic resource configuration based on a second field, among the HARQ ID field and the RV field, being present in the second DCI format.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

• receive one or more configuration parameters for a cell indicating a periodic resource configuration, wherein activation of the periodic resource configuration is based on:
• 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, wherein a first field, among the HARQ ID field and the RV field, is absent in the second DCI format;
• and
• activate the periodic resource configuration based on a second field, among the HARQ ID field and the RV field, being present in the second DCI format.