Patent ID: 9008516
Filing Date: 2015-04-14
Classification: H04B,H04L,H04Q

Abstract:
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.