Optical module with DDM reporting function for 5G forward transmission network

Abstract

The invention discloses an optical module with a DDM reporting function for a 5G forward transmission network. Theoptical module comprises a BIDI optical module on one side of an AAU and a BIDI optical module on one side of a BBU, the BIDI optical module on one side of the AAU is connected with the BIDI optical module on one side of the BBU through a single-mode optical fiber, and the BIDI opticalmodule on one side of the AAU comprises an optical module mainboard A and an optical module backboard A; the optical module mainboard A is connected with the optical module backboard A through a flexible board, an MCU on the optical module mainboard A provides DDM information of an optical module to the AAU service board through an I2C interface, and the service board modulates the received DDM information into an NRZ code type. According to the invention, the reporting monitoring problem at one side of the AAU can be well solved, and the reported information transmitting laser is selected tobe 1490nm, a WDM wave division plate is arranged in the device, independent transmission of reported information and service information can be realized, the 1490nm low-rate laser technology is mature, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical module used in a 5G fronthaul network with a DDM reporting function. Background technique [0002] The 5G fronthaul network is divided into two parts, the BBU and the AAU. The BBU is located in the computer room, which can facilitate the reporting and query of optical module performance, while the AAU is located in the remote signal tower. The connection between the AAU and the BBU is only one or two optical fibers. The operating status of the module on the signal tower cannot be obtained in real time, which is not conducive to the monitoring and maintenance of the fronthaul optical network. [0003] The present invention designs a single-fiber bidirectional optical module that is applied to the 5G fronthaul network and can transmit the operating status of the optical module on the AAU to the BBU computer room, so as to solve the problem that the AAU side...

AI Technical Summary

Problems solved by technology

[0002] The 5G fronthaul network is divided into two parts, the BBU and the AAU. The BBU is located in the computer room, which can facilitate the reporting and query of optical module performance, while the AAU is located in the remote signal tower. The connection between the AAU and the BBU is only one or two optical fibers. The operating status of the module on the signal tower cannot be obtained in real time, which is not conducive to the monitoring and maintenance of the fronthaul optical network

[0003] The present invention designs a single-fiber bidirectional optical module that is applied to the 5G fronthaul network and can transmit the operating status of the optical module on the AAU to the BBU computer room, so as to solve the problem that the AAU side cannot monitor and report in real time

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