System and method for cordon of O-cloud node

1. A method for cordoning one or more Open Radio Access Network (O-RAN) Cloud (O-Cloud) nodes, the method comprising:

receiving, by a Service Management and Orchestration Framework (SMO) function, a first request to cordon at least one O-Cloud node, the first request being received from a user terminal or from an rApp of a Non-Real-Time (Non-RT) RAN Intelligent Controller (RIC);

transmitting, by the SMO function to an Infrastructure Management Services (IMS) and/or Deployment Management Services (DMS) via an O2 interface, a second request to cordon the at least one O-Cloud node based on the received first request; and

receiving, from the IMS/DMS, a first notification that the at least one O-Cloud node has been cordoned,

wherein the SMO function is at least one of a Federated O-Cloud Orchestration and Management (FOCOM) and Network Function Orchestration (NFO).

2. The method as claimed in claim 1 , wherein the second request is an instruction to cordon a first O-Cloud node of the at least one O-Cloud node, wherein the first notification indicates that the first O-Cloud node has been condoned, the method further comprising:

transmitting, by the SMO function to the IMS/DMS via an O2 interface, a third request to cordon a second O-Cloud node of the at least one O-Cloud node based on the received first request; and

receiving, from the IMS/DMS, a second notification that the second O-Cloud node has been cordoned.

3. The method as claimed in claim 1 , wherein the first request is triggered by rApp of the Non-RT RIC or by a manual request submitted via a Service Management and Orchestration Framework (SMO).

4. The method as claimed in claim 1 , wherein the second request is only transmitted by the SMO function to the IMS/DMS based on determining, by the SMO function, that the first request to cordon the at least one O-Cloud node is valid.

5. The method as claimed in claim 1 , further comprising:

controlling, by the IMS/DMS, to cordon the at least one O-Cloud node based on the second request to mark the O-Cloud node as unschedulable.

6. The method as claimed in claim 1 , wherein receiving the first notification that the O-Cloud node has been cordoned further comprises:

receiving, from the IMS/DMS by the SMO function via the O2 interface, the first notification that the at least one O-Cloud node has been cordoned.

7. The method as claimed in claim 6 , wherein receiving the first notification that the O-Cloud node has been cordoned further comprises:

receiving, from the SMO function by the rApp of the Non-RT RIC, the first notification that the at least one O-Cloud node has been cordoned.

8. An apparatus for cordoning one or more Open Radio Access Network (O-RAN) Cloud (O-Cloud) nodes, the apparatus comprising:

at least one memory storing computer-executable instructions; and

at least one processor configured to execute the computer-executable instructions to:

receive, by a Service Management and Orchestration Framework (SMO) function, a first request to cordon at least one O-Cloud node, the first request being received from a user terminal or from an rApp of a Non-Real-Time (Non-RT) RAN Intelligent Controller (RIC);

transmit, by the SMO function to an Infrastructure Management Services (IMS) and/or Deployment Management Services (DMS) via an O2 interface, a second request to cordon the at least one O-Cloud node based on the received first request; and

receive, from the IMS/DMS, a first notification that the at least one O-Cloud node has been cordoned,

wherein the SMO function is at least one of a Federated O-Cloud Orchestration and Management (FOCOM) and Network Function Orchestration (NFO).

9. The apparatus as claimed in claim 8 , wherein the second request is an instruction to cordon a first O-Cloud node of the at least one O-Cloud node, wherein the first notification indicates that the first O-Cloud node has been condoned, wherein the at least one processor is further configured to execute the computer-executable instructions to:

transmit, by the SMO function to the IMS/DMS via an O2 interface, a third request to cordon a second O-Cloud node of the at least one O-Cloud node based on the received first request; and

receive, from the IMS/DMS, a second notification that the second O-Cloud node has been cordoned.

10. The apparatus as claimed in claim 8 , wherein the first request is triggered by rApp of the Non-RT RIC or by a manual request submitted via a Service Management and Orchestration Framework (SMO).

11. The apparatus as claimed in claim 8 , wherein the second request is only transmitted by the SMO function to the IMS/DMS based on determining, by the SMO function, that the first request to cordon the at least one O-Cloud node is valid.

12. The apparatus as claimed in claim 8 , wherein the at least one processor is further configured to execute the computer-executable instructions to:

control, by the IMS/DMS, to cordon the at least one O-Cloud node based on the second request to mark the O-Cloud node as unschedulable.

13. The apparatus as claimed in claim 8 , wherein the at least one processor is further configured to execute the computer-executable instructions to receive the first notification that the O-Cloud node has been cordoned by:

receiving, from the IMS/DMS by the SMO function via the O2 interface, the first notification that the at least one O-Cloud node has been cordoned.

14. The apparatus as claimed in claim 13 , wherein the at least one processor is further configured to execute the computer-executable instructions to receive the first notification that the O-Cloud node has been cordoned by:

receiving, from the SMO function by the rApp of the Non-RT RIC, the first notification that the at least one O-Cloud node has been cordoned.

15. A non-transitory computer-readable recording medium having recorded thereon instructions executable by at least one processor to cause the at least one processor to perform a method comprising:

receiving, by a Service Management and Orchestration Framework (SMO) function, a first request to cordon at least one O-Cloud node, the first request being received from a user terminal or from an rApp of a Non-Real-Time (Non-RT) RAN Intelligent Controller (RIC);

transmitting, by the SMO function to an Infrastructure Management Services (IMS) and/or Deployment Management Services (DMS) via an O2 interface, a second request to cordon the at least one O-Cloud node based on the received first request; and

receiving, from the IMS/DMS, a first notification that the at least one O-Cloud node has been cordoned,

wherein the SMO function is at least one of a Federated O-Cloud Orchestration and Management (FOCOM) and Network Function Orchestration (NFO).

16. The non-transitory computer-readable recording medium as claimed in claim 15 , wherein the second request is an instruction to cordon a first O-Cloud node of the at least one O-Cloud node, wherein the first notification indicates that the first O-Cloud node has been condoned, the method further comprising:

transmitting, by the SMO function to the IMS/DMS via an O2 interface, a third request to cordon a second O-Cloud node of the at least one O-Cloud node based on the received first request; and

receiving, from the IMS/DMS, a second notification that the second O-Cloud node has been cordoned.

17. The non-transitory computer-readable recording medium as claimed in claim 15 , wherein the first request is triggered by rApp of the Non-RT RIC or by a manual request submitted via a Service Management and Orchestration Framework (SMO).

18. The non-transitory computer-readable recording medium as claimed in claim 15 , wherein the second request is only transmitted by the SMO function to the IMS/DMS based on determining, by the SMO function, that the first request to cordon the at least one O-Cloud node is valid.

19. The non-transitory computer-readable recording medium as claimed in claim 15 , further comprising:

controlling, by the IMS/DMS, to cordon the at least one O-Cloud node based on the second request to mark the O-Cloud node as unschedulable.

20. The non-transitory computer-readable recording medium as claimed in claim 15 , wherein receiving the first notification that the O-Cloud node has been cordoned further comprises:

receiving, from the IMS/DMS by the SMO function via the O2 interface, the first notification that the at least one O-Cloud node has been cordoned.