Core paging handling

1. A method comprising:

receiving, by a base station from an access and mobility management function, a first paging message for a closed access group (CAG) wireless device that is allowed to access CAG cells, wherein the first paging message:

indicates transitioning the CAG wireless device from an idle state to a connected state; and

comprises a parameter indicating whether the wireless device is allowed to access non-CAG cells; and

sending, via a non-CAG cell of the base station, a second paging message based on the first paging message, wherein the sending is based on the parameter indicating that the CAG wireless device is allowed to access the non-CAG cell.

2. The method of claim 1 , wherein the sending via the non-CAG cell comprises determining the non-CAG cell based on:

the parameter indicating that the wireless device is allowed to access the non-CAG cell; and

the non-CAG cell being the non-CAG cell.

3. The method of claim 2 , wherein the base station does not broadcast a CAG identifier of the non-CAG cell.

4. The method of claim 1 , wherein the first paging message further comprises one or more CAG identifiers of the wireless device.

5. The method of claim 4 , further comprising sending, by the base station and via a second cell, a third paging message based on the first paging message based on the second cell being associated with the one or more CAG identifiers of the wireless device.

6. The method of claim 1 , wherein the first paging message further comprises at least one of:

a user equipment (UE) identity;

an access type;

a paging discontinuous reception cycle;

a tracking area identities list of the wireless device;

a paging priority; or

a UE radio capability for paging.

7. The method of claim 1 , further comprising broadcasting one or more CAG identifiers associated with one or more CAG cells.

8. 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:

receive, from an access and mobility management function, a first paging message for a closed access group (CAG) wireless device that is allowed to access CAG cells, wherein the first paging message:

indicates transitioning the CAG wireless device from an idle state to a connected state; and

comprises a parameter indicating whether the wireless device is allowed to access non-CAG cells; and

send, via a non-CAG cell of the base station, a second paging message based on the first paging message, wherein the sending is based on the parameter indicating that the CAG wireless device is allowed to access the non-CAG cell.

9. The base station of claim 8 , wherein the memory further comprises instructions that cause the base station to determine the non-CAG cell based on:

the parameter indicating that the wireless device is allowed to access the non-CAG cell; and

the non-CAG cell being a non-CAG cell.

10. The base station of claim 9 , wherein the memory further comprises instructions that cause the base station to not broadcast a CAG identifier of the non-CAG cell.

11. The base station of claim 8 , wherein the first paging message further comprises one or more CAG identifiers of the wireless device.

12. The base station of claim 11 , wherein the memory further comprises instructions that cause the base station to send, via a second cell, a third paging message based on the first paging message based on the second cell being associated with the one or more CAG identifiers of the wireless device.

13. The base station of claim 8 , wherein the first paging message further comprises at least one of:

a user equipment (UE) identity;

an access type;

a paging discontinuous reception cycle;

a tracking area identities list of the wireless device;

a paging priority; or

a UE radio capability for paging.

14. The method of claim 8 , wherein the memory further comprises instructions that cause the base station to broadcast one or more CAG identifiers associated with one or more CAG cells.

15. A method comprising:

receiving, by an access and mobility management function from a base station, a message; and

based on the message, sending, to the base station, a first paging message for a closed access group (CAG) wireless device that is allowed to access CAG cells, wherein he first paging message:

indicates transitioning the CAG wireless device from an idle state to a connected state; and

comprises a parameter indicating whether the CAG wireless device is allowed to access non-CAG cells.

16. The method of claim 15 , wherein the first paging message further comprises one or more CAG identifiers of the wireless device.

17. The method of claim 15 , wherein the message comprises:

one or more CAG identifiers associated with the base station.

18. The method of claim 15 , wherein the message comprises:

a parameter indicating whether the base station comprises a non-CAG cell.

19. The method of claim 15 , further comprising:

sending the first paging message to the base station based on:

none of the one or more CAG identifiers of the base station being in a list of the one or more CAG identifiers of the wireless device;

the parameter indicating that the base station comprises the non-CAG cell; and

the wireless device being allowed to access the non-CAG cell.

20. The method of claim 15 , further comprising:

receiving, from the base station, a setup request message comprising:

at least one CAG identifier associated with the base station; and

a parameter indicating whether the base station comprises a non-CAG cell.