Method, devices and system for transmitting and processing optical-fiber network

Abstract

The invention relates to a method, devices and a system for transmitting and processing an optical-fiber network. The method comprises the following steps: receiving a type identifying message sent bydown equipment; analyzing and obtaining type identifying codes from the identifying message; identifying a data transmission type supported by the down equipment; and carrying out data transmission according to the data transmission type. One device of the invention comprises an analyzing and obtaining module for executing the method, a type identifying module and an interactive processing module, while the other device comprises a type reporting module used for setting and sending the type identifying codes in the identifying message so as to indicate to carry out the data transmission aftertype identification. The system comprises an optical link terminal and at least two optical-fiber network units which are connected with the optical link terminal through optical fibers, wherein theoptical link terminal can be the first device, and the optical-fiber network units can be the second device. The invention can realize the upgrading or the expansion of the network and protect the investment of the prior network equipment, reduces the reconstruction cost and is easy for popularization and application.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to an optical network transmission processing method, device and system. Background technique [0002] With the development of communication technology, optical fiber access technology will be the final solution of broadband access network technology due to its huge capacity and advantages of long-distance transmission. There are various configuration forms of an existing optical fiber access network, such as a passive optical network (Passive Optical Network, hereinafter referred to as PON), an active optical network (Active Optical Network, hereinafter referred to as AON), and the like. [0003] The existing optical fiber access network mostly adopts point-to-multipoint optical fiber transmission and access technology. Taking the PON configuration form as an example, its network architecture is generally as follows: figure 1 As shown, it may include an optical l...

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Problems solved by technology

Therefore, the common problem faced in the expansion scheme of optical fiber access network is: from the perspective of cost reduction and full utilization of existing investment, it is often impossible to replace the existing user-side network element equipment, especially the ONU. , different types of ONUs based on different optical fiber transmission technologies need to coexist, which requires the optical fiber transmission equipment on the service provider side to be able to identify existing and newly introduced different types of user-side network element equipment, which are different types of user-side network element equipment Provide data transmission service

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