Private radio networks

1. A method, comprising:

storing, by a base station, a first private network identifier for a first private new radio (NR) radio access network (RAN);

transmitting, by the base station, the first private network identifier within remaining minimum system information (RMSI) or other system information (OSI) on a shared downlink channel, wherein the first private network identifier indicates support of private network operations for the first private NR RAN by the base station; and

receiving, by the base station and based on the first private network identifier, an attach request from an end device that is provisioned for access to the first private NR RAN.

2. The method of claim 1 , wherein the transmitting includes transmitting the RMSI and the OSI on a new radio physical downlink shared channel (NR-PDSCH) using a radio frequency (RF) beam of multiple RF beams supported by the base station.

3. The method of claim 1 , wherein the transmitting further includes transmitting the first private network identifier using a first radio frequency (RF) downlink beam, the method further comprising:

transmitting a second private network identifier using a second RF downlink beam.

4. The method of claim 1 , wherein the transmitting includes transmitting the first private network identifier among a prioritized list comprising different private network identifiers and access restrictions for different private NR RANs associated with each of the different private network identifiers.

5. The method of claim 1 , wherein the transmitting includes transmitting a second private network identifier associated with a neighboring base station.

6. The method of claim 1 , wherein the transmitting includes transmitting the first private network identifier using an unlicensed or shared radio frequency (RF) spectrum and using listen-before-talk procedures.

7. The method of claim 6 , wherein the transmitting further includes transmitting a synchronization sequence block (SSB), the RMSI and the OSI in consecutive orthogonal frequency-division multiplexing (OFDM) symbols.

8. The method of claim 1 , further comprising:

sending, by the base station and to the end device, a request to acquire private network information from a neighboring base station; and

receiving from the end device a report including another private network identifier that is associated with the neighboring base station.

9. The method of claim 1 , wherein the transmitting includes transmitting synchronization signals having a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) signal, wherein the PBCH signal points to the RMSI and the OSI in a time-frequency domain.

10. The method of claim 1 , further comprising:

transmitting, by the base station and within the RMSI or OSI, an indication of a common RACH resource to use by end devices.

11. A base station, comprising:

one or more memories to store instructions and a first private network identifier for a first private new radio (NR) radio access network (RAN); and

one or more processors configured to execute the instructions to:

transmit the first private network identifier within remaining minimum system information (RMSI) or other system information (OSI) on a shared downlink channel, wherein the first private network identifier indicates support of private network operations for the first private NR RAN by the base station; and

receive, in response to transmitting the first private network identifier, an attach request from an end device that is provisioned for access to the first private NR RAN.

12. The base station of claim 11 , wherein, when transmitting the first private network identifier, the one or more processors are further configured to execute the instructions to:

transmit the first private network identifier on a new radio physical downlink shared channel (NR-PDSCH) using a radio frequency (RF) beam of multiple RF beams supported by the base station.

13. The base station of claim 12 , the one or more processors being further configured to execute the instructions to:

transmit a second private network identifier using a different RF downlink beam of the multiple RF beams supported by the base station.

14. The base station of claim 11 , wherein, when transmitting the first private network identifier, the one or more processors are further configured to execute the instructions to:

transmit the first private network identifier among a prioritized list comprising different private network identifiers for different private NR RANs associated with each of the different private network identifiers.

15. The base station of claim 11 , the one or more processors being further configured to execute the instructions to:

send, to the end device, a request to acquire private network information from a neighboring base station; and

receive, from the end device, a report including a second private network identifier that is associated with the neighboring base station; and

transmit, within the RMSI or OSI on the shared downlink channel, the second private network identifier associated with the neighboring base station.

16. The base station of claim 11 , wherein, when transmitting the first private network identifier, the one or more processors are further configured to execute the instructions to:

transmit a synchronization sequence block (SSB), the RMSI, and the OSI in consecutive orthogonal frequency-division multiplexing (OFDM) symbols.

17. The base station of claim 11 , the one or more processors being further configured to execute the instructions to:

transmit, within the RMSI or OSI, a first indication of a first RACH resource for use by end devices accessing the first private network and a second indication of a second RACH resource for use by end devices accessing a mobile network operator's (MNO) NR RAN.

18. The base station of claim 11 , wherein, when transmitting the first private network identifier, the one or more processors are further configured to execute the instructions to:

transmit, on the shared downlink channel, synchronization signals having a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) signal, wherein the PBCH signal points to the RMSI and the OSI in an orthogonal frequency-division multiplexing (OFDM) domain.

19. A non-transitory computer-readable medium containing instructions executable by at least one processor of a base station to cause the at least one processor to:

store, in the base station, a first private network identifier for a first private new radio (NR)

transmit, by the base station, the first private network identifier within remaining minimum system information (RMSI) or other system information (OSI) on a shared downlink channel, wherein the first private network identifier indicates support of private network operations for the first private NR RAN by the base station; and

receive, by the base station and based on the first private network identifier, an attach request from an end device that is provisioned for access to the first private NR RAN.

20. The non-transitory computer-readable medium of claim 19 , wherein the instructions to transmit the first private network identifier further comprise one or more instructions to cause the at least one processor to:

transmit the RMSI and the OSI on a new radio physical downlink shared channel (NR-PDSCH) using a radio frequency (RF) beam of multiple RF beams supported by the base station.