Method for establishing communication link of digital synchronous communication equipment with public frame format

Abstract

The invention discloses a method for establishing a communication link of digital synchronous communication equipment with a public frame format, which comprises the following steps that: 1) a sendingend sends frames with different communication frame formats and regular duration to the opposite side of connected equipment in combination with a strategy agreed with the two sides of the connectedequipment; 2) the receiving end actively detects the frames in different communication frame formats sent by the sending end according to the frame synchronization signal, and in the detection process, the obtained frame with the longest synchronization indication time is determined as the optimal communication frame format supported by the opposite end equipment; and 3) a link is established: after the two communication parties obtain the optimal communication frame format information of the opposite end, a communication frame format suitable for the two parties is selected according to a strategy commonly obeyed by the two parties, and the communication link is established. According to the method, two communication parties realize auto-negotiation of the communication link frame formataccording to a common strategy, the difficulty of opening, operating and maintaining the communication network can be reduced, and the user experience feeling of communication network equipment is improved.

Description

technical field [0001] The invention relates to a digital communication link, in particular to a method for establishing a communication link of a digital synchronous communication device whose frame format is disclosed. Background technique [0002] To establish a communication link between digital synchronous communication devices, both communication parties need to abide by the same technical system. In addition to frame frequency, definition of multiplexing\demultiplexing, and definition of mapping\demapping must be unified by both sides, the most basic thing is that the frame format of both sides must be the same. Generally speaking, the frame of a digital synchronous communication device includes fields such as frame header, data, and checksum. Since the code pattern and frequency of the frame header are specific, the receiving and receiving parties can realize the synchronization of the two communicating parties through the frame header signal, and then establish comm...

AI Technical Summary

Problems solved by technology

In the communication network, if there are many different types of frame format interfaces, it is necessary to consider a variety of corresponding interfaces for adaptation. These practical factors will cause a lot of inconvenience to the operators when the equipment is opened or O&M management, and even a simple Incorrect settings can significantly increase debugging or troubleshooting time

[0004] Communication between existing digital synchronous communication devices whose frame format is disclosed cannot be self-negotiated, which is not conducive to device activation and operation and maintenance

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