An optical module with ddm reporting function for 5g fronthaul network

Abstract

The invention discloses an optical module for 5G fronthaul network with DDM reporting function, including a BIDI optical module on the AAU side and a BIDI optical module on the BBU side, the BIDI optical module on the AAU side and the BBU side The BIDI optical module is connected through a single-mode fiber. The BIDI optical module on the AAU side includes the optical module main board A and the optical module backplane A. The optical module main board A and the optical module backplane A are connected through a soft board. The optical module main board A The MCU on the board provides the DDM information of the optical module to the AAU service board through the I2C interface, and the service board modulates the received DDM information into an NRZ code pattern. The present invention can better solve the problem of reporting and monitoring on the AAU side. 1490nm, through the WDM wave splitter inside the device, independent transmission of reported information and business information can be achieved, and the 1490nm low-rate laser technology is relatively mature and low in cost.

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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