Open network architecture based on wavelength division PON system, and signal transmission method

Abstract

The invention discloses an open network architecture based on a wavelength division PON system, and a signal transmission method, and relates to the field of a PON optical access technology. The network architecture comprises a control unit, a service selection unit, an optical transceiving array unit, a clock unit and a plurality of service side optical modules. The control unit is respectively connected with the service selection unit, the optical transceiving array unit and the clock unit; each service side optical module is connected with a service provider device; the service selection unit is provided with a plurality of service data channels; each service side optical module is connected with the optical transceiving array unit through the data channels corresponding to services; and the optical transceiving array unit is connected with the optical modules of all ORU devices through an AWG. According to the invention, multiple different services can be accessed to the same optical access basic facility in an integrated mode, uplink and downlink signal transmission of multiple different services can be finished; and the service access capability is quite high, the application scope is quite wide, resources can be shared, and the application cost is quite low.

Description

technical field [0001] The present invention relates to the field of passive optical network optical access technology based on WDM (Wavelength Division and Multiplexing, wavelength division multiplexing) technology, in particular to an open network architecture and signal transmission method based on a wavelength division PON system. Background technique [0002] The optical access network is an important part of the optical fiber communication network. With the progress of optical communication, my country has deployed a large number of optical access equipment (such as PON equipment, central office OLT equipment, ODN equipment, ONU equipment, etc.); The PON network architecture is closed, so the services carried in the PON network are single. At present, most PON networks generally carry fixed network Ethernet signals, and seldom carry mobile signals; mobile signals generally use BBU (Building Baseband Unit, indoor baseband processing unit)-RRU (Remote Radio Unit, remote r...

AI Technical Summary

Problems solved by technology

[0004] (1) For operators with fixed network equipment, if operators need to use mobile signals, they need to increase the bearer equipment of mobile signals and deploy new networks to carry the newly added mobile signals, which makes equipment suppliers need to develop New equipment to support the new network will not only increase the construction cost of the operator and the development cost of the equipment supplier, but also cause a huge waste of equipment

[0005] (2) The types of services carried in the existing network are single, and the existing equipment and network architecture are difficult to flexibly add new services according to the needs of the business, which is not convenient for people to use

[0006] (3) At present, the existing fixed network and mobile network use their own independent access network facilities. Both the fixed network and the mobile network need to use the infrastructure of the access network (such as ODN) with a service life of 30 to 40 years. Using two sets of access network infrastructure to use a fixed network and a mobile network not only wastes a lot of resources, reduces the utilization rate of network resources, but also has high maintenance costs

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