Communication of resource status information between a base station central unit and a base station distributed unit

1. A method comprising:

receiving, by a base station central unit from a base station distributed unit, resource configuration parameters of a cell of the base station distributed unit;

sending, by the base station central unit to the base station distributed unit, a resource status request for the cell;

receiving, by the base station central unit from the base station distributed unit, a resource status update message comprising radio resource status information of a beam of a plurality of beams of the cell, wherein each beam of the plurality of beams is associated with a respective synchronization signal block (SSB) of a plurality of SSBs of the cell; and

sending, by the base station central unit to a wireless device and based on the resource configuration parameters of the cell, a first radio resource control message comprising first configuration parameters of first radio resources for the wireless device.

2. The method of claim 1 , wherein the resource status update message comprises a number of active wireless devices.

3. The method of claim 1 , wherein the resource configuration parameters comprise at least one of:

frequency information of radio resources of the cell; or

timing information of the radio resources of the cell.

4. The method of claim 1 , wherein the resource configuration parameters comprise at least one of:

a network slice that is allowed to use first radio resources of the cell; or

a wireless device type that is allowed to use second radio resources of the cell.

5. The method of claim 1 , wherein the radio resource status information comprises a ratio of used resources.

6. The method of claim 1 , further comprising determining, by the base station central unit and based on the radio resource status information, second radio configuration parameters of the cell.

7. The method of claim 1 , further comprising sending, by the base station central unit to the wireless device and based on the radio resource status information of the cell, a second radio resource control message comprising second configuration parameters of second radio resources for the wireless device.

8. The method of claim 1 , wherein the resource status request comprises at least one of:

a triggering condition of reporting the radio resource status information; or

a periodicity of reporting the radio resource status information.

9. The method of claim 1 , wherein a base station comprises the base station central unit and the base station distributed unit.

10. 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:

receive, from a base station distributed unit, resource configuration parameters of a cell of the base station distributed unit;

send, to the base station distributed unit, a resource status request for the cell;

receive, from the base station distributed unit, a resource status update message comprising radio resource status information of a beam of a plurality of beams of the cell, wherein each beam of the plurality of beams is associated with a respective synchronization signal block (SSB) of a plurality of SSBs of the cell; and

send, to a wireless device and based on the resource configuration parameters of the cell, a first radio resource control message comprising first configuration parameters of first radio resources for the wireless device.

11. The base station central unit of claim 10 , wherein the resource status update message comprises a number of active wireless devices.

12. The base station central unit of claim 10 , wherein the resource configuration parameters comprise at least one of:

frequency information of radio resources of the cell; or

timing information of the radio resources of the cell.

13. The base station central unit of claim 10 , wherein the resource configuration parameters comprise at least one of:

a network slice that is allowed to use first radio resources of the cell; or

a wireless device type that is allowed to use second radio resources of the cell.

14. The base station central unit of claim 10 , wherein the radio resource status information comprises a ratio of used resources.

15. The base station central unit of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the base station central unit to determine, based on the radio resource status information, second radio configuration parameters of the cell.

16. The base station central unit of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the base station central unit to send, to the wireless device and based on the radio resource status information of the cell, a second radio resource control message comprising second configuration parameters of second radio resources for the wireless device.

17. The base station central unit of claim 10 , wherein the resource status request comprises at least one of:

a triggering condition of reporting the radio resource status information; or

a periodicity of reporting the radio resource status information.

18. A system comprising:

a base station distributed unit comprising:

one or more first processors; and

first memory storing first instructions that, when executed by the one or more first processors, cause the base station distributed unit to:

send resource configuration parameters of a cell of the base station distributed unit; and

send a resource status update message comprising radio resource status information of a beam of a plurality of beams of the cell, wherein each beam of the plurality of beams is associated with a respective synchronization signal block (SSB) of a plurality of SSBs of the cell; and

a base station central unit comprising:

one or more second processors; and

second memory storing second instructions that, when executed by the one or more second processors, cause the base station central unit to:

receive the resource configuration parameters of a cell of the base station distributed unit;

send a resource status request for the cell;

receive the resource status update message; and

send, to a wireless device and based on the resource configuration parameters of the cell, a first radio resource control message comprising first configuration parameters of first radio resources for the wireless device.