Network slice deployment method and apparatus

1. A network slice deployment method, comprising:

sending, by a first network manager, network slice subnet requirement information to a second network manager, wherein the network slice subnet requirement information indicates a requirement for deploying a network slice subnet instance, the network slice subnet instance comprises one or more node instances, the network slice subnet requirement information is decomposed into node requirement information that indicates a requirement for deploying a node instance, and the node instance is a network function device or a network element device;

after a deployment of the node instance based on the network slice subnet requirement information, obtaining, by the first network manager, node instance information, wherein the node instance information comprises identifier information of the node instance or a network address of the node instance;

determining, by the first network manager, transport requirement information corresponding to the node instance information, wherein the transport requirement information comprises one or more of a transport deployment specification, a latency, bandwidth, location constraint information, affinity and anti-affinity rules, bearer information, a network type, a reliability requirement, a mobility requirement, or isolation requirement information; and

sending, by the first network manager, a transport request message to a transport network manager, wherein the transport request message carries the transport requirement information and the node instance information.

2. The method according to claim 1 , wherein the deployment of the node instance based on the network slice subnet requirement information comprises:

a decomposition of the network slice subnet requirement information into node requirement information indicating a requirement for deploying a node instance; and

a deployment of the node instance based on the node requirement information.

3. The method according to claim 2 , wherein the method further comprises:

obtaining, by the first network manager, node instance description information corresponding to the node instance information, wherein the node instance description information comprises one or more of an identifier of the node requirement information, a node type, an identifier of a node template, location information of a node, or specification information of the node.

4. The method according to claim 1 , wherein determining, by the first network manager, the transport requirement information corresponding to the node instance information comprises: determining, by the first network manager, the transport requirement information based on node instance description information corresponding to the node instance information.

5. The method according to claim 1 , wherein determining, by the first network manager, the transport requirement information corresponding to the node instance information comprises: determining, by the first network manager, a transport template based on the node instance information, wherein the transport template comprises the transport requirement information.

6. The method according to claim 1 , wherein determining, by the first network manager, the transport requirement information corresponding to the node instance information comprises: determining, by the first network manager, the transport requirement information based on the node instance information and a preset policy.

7. The method according to claim 1 , further comprising:

receiving, by the first network manager, network slice requirement information for creating a network slice, wherein the network slice comprises a core network subnet, an access network subnet, and a transport network subnet, the network slice requirement information comprises one or more of a bandwidth, a latency, coverage, a success rate, a location, a traffic model, a quantity of users, or user distribution; and

decomposing, by the first network manager, the network slice requirement information into the network slice subnet requirement information based on a ratio of respective requirements of the core network subnet, the access network subnet, and the transport network subnet, and

wherein determining, by the first network manager, the transport requirement information corresponding to the node instance information comprises: determining, by the first network manager, the transport requirement information based on the network slice requirement information and a ratio of respective requirements of the core network subnet, the access network subnet, and the transport network subnet.

8. The method according to claim 1 , wherein the method comprises:

obtaining, by the transport network manager, the transport request message; and

configuring, by the transport network manager, a transport resource corresponding to the transport requirement information.

9. A network manager, comprising:

at least one memory; and

at least one processor, wherein the at least one memory is configured to store a program, and wherein the at least one processor is configured to invoke the program in the at least one memory, wherein the program instructs the network manager to:

send network slice subnet requirement information to a second network manager, wherein the network slice subnet requirement information indicates a requirement for deploying a network slice subnet instance, the network slice subnet instance comprises one or more node instances, the network slice subnet requirement information is decomposed into node requirement information that indicates a requirement for deploying a node instance, and the node instance is a network function device or a network element device;

after a deployment of the node instance based on the network slice subnet requirement information, obtain node instance information, wherein the node instance information comprises identifier information of the node instance or a network address of the node instance;

determine transport requirement information corresponding to the node instance information, wherein the transport requirement information comprises one or more of a transport deployment specification, a latency, bandwidth, location constraint information, affinity and anti-affinity rules, bearer information, a network type, a reliability requirement, a mobility requirement, or isolation requirement information; and

send a transport request message to a transport network manager, wherein the transport request message comprises the transport requirement information and the node instance information.

10. The network manager according to claim 9 , wherein the deployment of the node instance based on the network slice subnet requirement information comprises:

a decomposition of the network slice subnet requirement information into node requirement information indicating a requirement for deploying a node instance; and

a deployment of the node instance based on the node requirement information.

11. The network manager according to claim 10 , wherein the program instructs the network manager to:

obtain node instance description information corresponding to the node instance information, wherein the node instance description information comprises one or more of an identifier of the node requirement information, a node type, an identifier of a node template, location information of a node, and specification information of the node.

12. The network manager according to claim 9 , wherein the program instructs the network manager to:

determine the transport requirement information based on node instance description information corresponding to the node instance information.

13. The network manager according to claim 9 , wherein the program instructs the network manager to:

determine a transport template based on the node instance information, wherein the transport template comprises the transport requirement information.

14. The network manager according to claim 9 , wherein the program instructs the network manager to:

determine the transport requirement information based on the node instance information and a preset policy.

15. The network manager according to claim 9 , wherein the program instructs the network manager to:

receive network slice requirement information for creating a network slice, wherein the network slice comprises a core network subnet, an access network subnet, and a transport network subnet, the network slice requirement information comprises one or more of a bandwidth, a latency, coverage, a success rate, a location, a traffic model, a quantity of users, or user distribution; and

decompose the network slice requirement information into the network slice subnet requirement information based on a ratio of respective requirements of the core network subnet, the access network subnet, and the transport network subnet, and

determine the transport requirement information corresponding to the node instance information by operations comprising: determining the transport requirement information based on the network slice requirement information and a ratio of respective requirements of the core network subnet, the access network subnet, and the transport network subnet.

16. A system for deployment network slice, comprising:

a first network manager; and

a transport network manager, wherein:

the first network manager is configured to:

send network slice subnet requirement information to a second network manager, wherein the network slice subnet requirement information indicates a requirement for deploying a network slice subnet instance, the network slice subnet instance comprises one or more node instances, the network slice subnet requirement information is decomposed into node requirement information that indicates a requirement for deploying a node instance, and the node instance is a network function device or a network element device;

after a deployment of the node instance based on the network slice subnet requirement information, obtain node instance information, wherein the node instance information comprises identifier information of the node instance or a network address of the node instance;

determine transport requirement information corresponding to the node instance information, wherein the transport requirement information comprises one or more of a transport deployment specification, a latency, bandwidth, location constraint information, affinity and anti-affinity rules, bearer information, a network type, a reliability requirement, a mobility requirement, or isolation requirement information; and

send a transport request message to a transport network manager, wherein the transport request message carries the transport requirement information and the node instance information, and

the transport network manager is configured to:

obtain the transport request message; and

configure a transport resource corresponding to the transport requirement information.

17. The system according to claim 16 , wherein the deployment of the node instance based on the network slice subnet requirement information comprises:

a decomposition of the network slice subnet requirement information into node requirement information indicating a requirement for deploying a node instance; and

a deployment of the node instance based on the node requirement information.

18. The system according to claim 17 , wherein the first network manager is configured to:

obtain node instance description information corresponding to the node instance information, wherein the node instance description information comprises one or more of an identifier of the node requirement information, a node type, an identifier of a node template, location information of a node, or specification information of the node.

19. The system according to claim 16 , wherein the first network manager is configured to:

determine the transport requirement information based on node instance description information corresponding to the node instance information.

20. The system according to claim 16 , wherein the first network manager is configured to:

determine a transport template based on the node instance information, wherein the transport template comprises the transport requirement information.