Patent ID: 7778236

Claim:
A method for implementing transport layer service of Next Generation Network (NGN), the NGN comprises a service layer and a transport layer, each of which comprises a management plane, a control plane, and a user plane, wherein the method comprises: establishing an independent transport-layer control device in the control plane of the transport layer in the NGN and an interface between the transport-layer control device and the service layer control device in the control plane of the service layer; dividing the user plane of the transport layer into a Multi-Protocol Label Switching (MPLS)-based packet transport sub-layer and a physical transport sub-layer, wherein said MPLS-based packet transport sub-layer is for establishing a Label Switched Path (LSP) and said physical transport sub-layer is for establishing a physical path, and wherein the functions of the MPLS-based packet transport sub-layer and the physical transport sub-layer are integrated into a single device for implementation; establishing a transportation connection in the user plane of the transport layer under the control of the transport-layer control device; and transferring NGN service through the transportation connection.