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

Abstract

The invention discloses a method for establishing a communication link of a digital synchronous communication device whose frame format is disclosed. Frames in the communication frame format; 2) The receiving end actively detects the frames in different communication frame formats sent by the sending end according to the frame synchronization signal. During the detection process, the frame with the longest synchronization indication time obtained is identified as the peer device The best supported communication frame format; 3) Link establishment: After both parties in the communication obtain the optimal communication frame format information of the opposite end, they select a communication frame format suitable for both parties according to the strategy that both parties abide by, and establish a communication link. This method enables the communication parties to realize the self-negotiation of the frame format of the communication link according to a common strategy, which can reduce the difficulty of communication network opening and operation and maintenance, and improve the user experience of communication network equipment.

Description

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

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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