TDM/PW space time diversity method based on T-MPLS packet transmission network

Abstract

The invention relates to the field of communication, and discloses a TDM / PM space time diversity method based on a T-MPLS packet transport network. The method is as follows: after a bit stream is cached by a transmission terminal, the process of coding transmission is carried out; a space time diversity pattern of a network is based on an ECMP environment; the decoding mode of the bit stream is received by a receiving terminal; a connection state machine of a PW passage is built and operated; the dynamic adjustment mode between PW chains of the traffic flow in an Active state and a Standby state is carried out after the sudden flow occurs; and an ECB signaling realization process in the network of a control plane is provided. According to the method, the negative influence of the sudden flow caused by connection failure or large quantity of package loss is weakened by the interlaced mode of the bit stream in the package. Meanwhile, the usability of the network is further increased by introducing a package error correcting machine. Because the decoding can be carried out without completely packaging, corresponding network time delay is obviously enlarged. Meanwhile, the Standby state is introduced in the maintenance and administration mode of the PW connection, the transmission efficiency of bandwidth is increased, and the administration and maintenance functions of the PW connection are not weakened. In the process of specific implementation, for a network which is not provided with a control plane, the functions can also be implemented by the design and the improvement ofa data packet. Because of the support of the control plane of the network, the method has easy realization and little change for the existing device, and can realize smooth upgrade.

Description

technical field [0001] The invention relates to the communication field, in particular to a TDM / PW space-time diversity method for a T-MPLS packet transmission network. Background technique [0002] T-MPLS (Transport Multiprotocol Label Switching, referred to as Transport Multiprotocol Label Switching) is a packet transmission technology currently recommended by ITU-T. It establishes an end-to-end connection-oriented packet transmission pipeline. The control plane is established, and the transmission channel of the group has good operation maintenance and protection recovery. Since it was approved at the Geneva meeting in February 2006, more equipment manufacturers and operators have begun to pay attention to the technology of T-MPLS. IETF has also been focusing on the formulation of T-MPLS standards and reached a partial consensus with ITU-T. Multiple working groups such as PWE, PWE3, and CCAMP formulate relevant standards at the same time. T-MPLS is a subset of MPLS. In ...

AI Technical Summary

Problems solved by technology

Usually, in order to save bandwidth resources, it is impossible to reserve resources according to the peak bandwidth demand for each business, because the performance will deteriorate in the face of fast burst traffic on the network

For general data services, a short delay or packet loss has little effect on the overall service performance, but it is unacceptable for real-time communication services (such as online games, conference calls, etc.)

A large amount of burst data may overflow the queue buffer of a certain link or a certain router, which will also lead to a decline in the QoS (Quality of Service, referred to as the quality of service) of the business

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