Distributed unit status information

A base station central unit comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the base station central unit to:
• transmit, to a first wireless device and via a base station distributed unit, a first message comprising first resource configuration parameters of periodic resources, wherein the first resource configuration parameters comprise:
• a periodicity of the periodic resources;
• and
• a first demodulation reference signal;
• receive, from the base station distributed unit, a second message comprising utilization information of the periodic resources;
• and
• transmit, to a second wireless device and via the base station distributed unit , a third message based on the utilization information, wherein:
• the third message comprises second resource configuration parameters of the periodic resources;
• and
• the second resource configuration parameters comprise:
• the periodicity of the periodic resources;
• and
• a second demodulation reference signal.