Patent ID: 9692647
Date: 2017-06-27
CPC Classifications: H04L,H04Q

Claim:
1. A method of registering and de-registering, by an optical line terminal (OLT), one or more optical network units (ONUs) in an optical communications network, the method comprising: setting one or more sub-channels for registration or de-registration among two or more sub-channels, and a size of a contention window in the one or more sub-channels; transmitting, to one or more ONUs, a registration information message including information of the one or more set sub-channels and the size of the contention window; receiving, through one of the set sub-channels, a registration or de-registration request message from the one or more ONUs, which receive the registration information message; and registering and de-registering the one or more ONUs, which have transmitted the registration or de-registration request message, wherein the optical communications network has a plurality of sub-channels, wherein the transmitting a registration information message comprises including an information indicating the one or more sub-channels among a plurality of sub-channels to be used for registration or de-registration, in the registration information message.