Architecture for integrating service, network and domain management subsystems
A method of controlling a service instance in a virtual network, the method comprising providing a Service Management Function entity in a control plane of the virtual network, the Service Management Function being configured to process requirements of a Service Level Agreement and generate corresponding control plane requests for physical resources to satisfy the Service Level Agreement.
1. A method for providing network resources in an operator network, the method comprising:
receiving, by a service management function, a network slice service request;
obtaining, by the service management function, local resource information from resource management entities of the operator network;
transmitting, by the service management function to a second service management function, a second network slice service request for obtaining remote resource information from a subnetwork;
receiving, by the service management function, from the second service management function, the remote resource information;
determining, by the service management function, a division of resources between the operator network and the subnetwork in accordance with the received network slice service request, the obtained local resource information and the remote resource information; and
transmitting, by the service management function, to an entity within the subnetwork, a request for an allocation of instantiated resources in the operator network and the subnetwork in accordance with the determined division of resources.
2. The method of claim 1 , wherein the step of obtaining remote resource information comprises the second service management function requesting the remote resource information from a management entity of the subnetwork.
3. The method of claim 1 wherein the operator network and the subnetwork are 3GPP compliant networks.
4. The method of claim 1 wherein at least one of the operator network and the subnetwork are non-3GPP compliant networks, and the service management function acts as a proxy for the second service management function, the second network slice service request including resources not available in the operator network.
5. The method of claim 1 , wherein the request for an allocation of instantiated resources is transmitted to a network manager within the operator network.
6. The method of claim 1 , wherein the entity within the subnetwork is one of a service management function (SvMF), a network manager (NM) and a slice operations manager (SOM).
7. The method of claim 6 , wherein at least one of the SvMF, the NM and the SOM is a non-3GPP compliant entity.
8. The method of claim 1 , wherein the step of determining the division of resources includes determining a division of resources between 3GPP compliant resources and non-3GPP compliant resources.
9. The method of claim 8 , wherein the request for an allocation of instantiated resources comprises a resource allocation request for 3GPP compliant resources and services, and is transmitted to a 3GPP compliant entity.
10. The method of claim 8 , wherein the request for an allocation of instantiated resources comprises a resource allocation request for non-3GPP compliant resources and services, and is transmitted to a non-3GPP compliant entity.
11. The method of claim 8 , wherein the request for an allocation of instantiated resources comprises a resource allocation request for 3GPP compliant resources and services, and is transmitted to a non-3GPP compliant entity.
12. The method of claim 1 , wherein the request for an allocation of instantiated resources comprises a resource allocation request to a management entity managing one or more of:
a service instance;
a network slice instance; and
a network slice subnet instance.
13. The method of claim 1 , wherein the request for an allocation of instantiated resources includes one of a network service instance (NSI) and a network subnet slice instance (NSSI) to indicate the determined resources.
14. The method of claim 13 further comprising, upon receipt of a response to the request for an allocation of instantiated resources, incorporating into an existing NSI a received NSI as a sub-NSI.
15. A service management system comprising:
a processor;
a non-transitory computer readable storage medium including software instructions configured to control the processor to implement steps of:
receiving a network slice service request;
obtaining local resource information from resource management entities of an operator network;
transmitting to a second service management function, a second network slice service request for obtaining remote resource information from a subnetwork;
receiving from the second service management function, the remote resource information;
determining a division of resources between the operator network and the subnetwork in accordance with the received network slice service request, the obtained local resource information and the remote resource information; and
transmitting to an entity within the subnetwork, a request for an allocation of instantiated resources in the operator network and the subnetwork in accordance with the determined division of resources.
16. The service management system of claim 15 wherein the remote resource information is obtained by the second service management function requesting the remote resource information from a management entity of the subnetwork.
17. The service management system of claim 15 wherein the request for an allocation of instantiated resources is transmitted to a network manager within the operator network.
18. The service management system of claim 15 wherein the step of determining the division of resources includes determining a division of resources between 3GPP compliant resources and non-3GPP compliant resources.
19. The service management system of claim 15 wherein the request for an allocation of instantiated resources comprises a resource allocation request to a management entity managing one or more of:
a service instance;
a network slice instance; and
a network slice subnet instance.
20. The service management system of claim 15 , wherein the request for an allocation of instantiated resources includes one of a network service instance (NSI) and a network subnet slice instance (NSSI) to indicate the determined resource, and upon receipt of a response to the request for an allocation of instantiated resources, incorporating into an existing NSI a received NSI as a sub-NSI.
21. The service management system of claim 15 wherein at least one of the operator network and the subnetwork are non-3GPP compliant networks, and the service management function acts as a proxy for the second service management function, the second network slice service request including resources not available in the operator network;
wherein the entity within the subnetwork is one of a service management function (SvMF), a network manager (NM), an element manager (EM) associated with a network element, and a slice operations manager (SOM), and at least one of the SvMF, the NM and the SOM is a non-3GPP compliant entity; and
wherein the request for an allocation of instantiated resources comprises a resource allocation request for 3GPP compliant resources and services transmitted to a 3GPP compliant entity, a request for non-3GPP compliant resources and services transmitted to a non-3GPP compliant entity, or a request for 3GPP compliant resources and services, and is transmitted to a non-3GPP compliant entity.