Method, apparatus, and system for transmitting information in passive optical network

摘要

A method, an apparatus, and a system for transmitting information in a passive optical network are provided. The method mainly includes: obtaining OAM information that an RE device needs to report to an OLT device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device, and returning the downlink optical signal after the modulation processing to the OLT device; or, obtaining OAM information that an OLT device needs to deliver to an RE device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device to the RE device, and sending the downlink optical signal after the modulation processing to the RE device.

主权项

1. A Reach Extension (RE) device, comprising:
a downlink optical signal demodulation unit, configured to demodulate a downlink optical signal sent by an Optical Line Terminal (OLT) device to obtain downlink Operation, Administration and Maintenance (OAM) information that is comprised in the downlink optical signal and sent by the OLT device to the RE device; an OAM information processing unit, configured to receive the downlink OAM information sent by the downlink optical signal demodulation unit; a control unit, configured to generate uplink OAM information that needs to be reported to the OLT device and send the uplink OAM information to the OAM information processing unit, and receive the downlink OAM information sent by the OAM information processing unit; and an uplink optical signal modulation unit, configured to perform modulation processing, according to the uplink OAM information sent by the OAM information processing unit, on the downlink optical signal sent by the OLT device, and send the optical signal after the modulation processing and comprising the uplink OAM information to the OLT device.