Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to receive downstream traffic over a first wavelength; a first upstream optical transmitter having a first data rate; a second upstream optical transmitter having a second data rate that is higher than the first data rate; and a controller configured to direct upstream traffic to one of the first upstream optical transmitter or the second upstream optical transmitter depending on a traffic type of the traffic. Traffic having a control plane traffic type is directed to the first upstream optical transmitter and traffic having a data plane traffic type is directed to the second upstream optical transmitter.

A channel adjustment method, apparatus and system. The method includes: an optical line terminal (OLT) receives a channel bonding capability parameter reported by an optical network unit (ONU) and supported by the ONU; the OLT determines a channel bonding capability parameter of a to-be-bonded channel of the ONU according to the channel bonding capability parameter, a serving application of the ONU and/or a data transmission state; and the OLT sends, to the ONU, first bonding control information carrying the channel bonding capability parameter of the to-be-bonded channel of the ONU and used for instructing the ONU to adjust the bonded channel.

The invention provides a method and apparatus for downstream flow control in an (x)GPON system. First, ONU sends a DS_FlowControl_Request message to OLT, wherein the DS_FlowControl_Request message includes information of transmission inhibiting period and is used for requesting OLT to inhibit downstream transmission for a transmission inhibiting period corresponding to the information of transmission inhibiting period. After receiving the DS_FlowControl_Request message from ONU, OLT inhibits the downstream transmission for the transmission inhibiting period corresponding to the information of transmission inhibiting period based on the information of transmission inhibiting period included in the DS_FlowControl_Request message. After inhibiting the downstream transmission for the transmission inhibiting period corresponding to the information of transmission inhibiting period, OLT resumes the downstream transmission to ONU.

Herein is disclosed a combined telecommunications and power network, the network comprising: one or more optical network terminals; one or more optical network splitters, wherein each of the optical network splitters are optically connected to one or more of the optical network terminals; one or more optical line terminals, wherein each of the optical line terminals are optically connected to one or more of the optical network splitters; one or more network switches, wherein each of the network switches are connected to one or more of the optical line terminals; one or more routers, wherein each of the routers are connected to one or more of the network switches, and electrically connected to one or more modems; one or more automatic transfer switches, wherein each of the automatic transfer switches electrically powers one or more of the optical line terminals; one or more power sources, wherein each of the power sources is electrically connected to a respective one of the automatic transfer switches; and a server system, wherein the server system is in communication with one or more of: one or more of the network switches and one or more of the optical network terminals.

Herein is disclosed a combined telecommunications and power network, the network comprising: one or more optical network terminals; one or more optical network splitters, wherein each of the optical network splitters are optically connected to one or more of the optical network terminals; one or more optical line terminals, wherein each of the optical line terminals are optically connected to one or more of the optical network splitters; one or more network switches, wherein each of the network switches are connected to one or more of the optical line terminals; one or more routers, wherein each of the routers are connected to one or more of the network switches, and electrically connected to one or more modems; one or more automatic transfer switches, wherein each of the automatic transfer switches electrically powers one or more of the optical line terminals; one or more power sources, wherein each of the power sources is electrically connected to a respective one of the automatic transfer switches; and a server system, wherein the server system is in communication with one or more of: one or more of the network switches and one or more of the optical network terminals.

Systems and methods for relaying upstream signals received from a plurality of subscribers to a remote head end. Some preferred embodiments include upstream transmitters in one or more Optical Network Units that may be dynamically and individually controlled to determine whether the upstream transmission is in burst mode or continuous mode.

Systems and methods for optical modulation index calibration in a CATV network.

An optical transmission system of an embodiment connects a plurality of wireless communication systems to each other, and includes a wavelength allocation unit that allocates different wavelengths to optical-terminating devices to which the wireless communication systems next to each other are connected, on the basis of the physical arrangement of each of the plurality of wireless communication system.

Systems and methods for optical modulation index calibration in a CATV network.

Embodiments of the present invention provide an optical network unit ONU registration method, apparatus, and system, to resolve a problem in the prior art that a registration process is cumbersome. The method includes: receiving an uplink optical signal, where the uplink optical signal carries ONU authentication information; sending the optical signal to a corresponding MAC module separately according to a wavelength of uplink light; extracting, by the MAC module, the ONU authentication information, and sending the extracted ONU authentication information to a processor; and receiving, by the processor, the ONU authentication information, and determining whether the ONU authentication information is consistent with ONU authentication information configured by an OLT, where if the ONU authentication information is consistent with the ONU authentication information configured by the OLT, an ONU is registered successfully.