This application provides example optical communications apparatuses. One example optical communications apparatus includes a control apparatus and an optical module matching apparatus. The control apparatus can output a first control signal to the control end. An input end of the optical module matching apparatus can connect to a first optical module and receive a first electrical signal output by the first optical module. An output end of the optical module matching apparatus can output a first serial signal. The control apparatus can output a second control signal to the control end. The input end of the optical module matching apparatus can receive a second electrical signal output by the second optical module. The output end of the optical module matching apparatus can output a second serial signal. The first electrical signal and the second electrical signal can have different level types.

One aspect of the present invention is a communication device including: a first control unit that converts, when data including partial data obtained by fragmenting a user frame and a user frame is received via a passive optical network, the partial data into data that is not discarded in a transmission line through which the user frame is transmitted, and transmits the data through the transmission line through which the user frame is transmitted; and a second control unit that receives the data via the transmission line through which the user frame is transmitted from the first control unit, converts the received data into a user frame that is transmittable through the passive optical network, and transmits the user frame via the passive optical network.

The present application provides a data transmitting method, a data transmitting apparatus, a data receiving method, a data receiving apparatus, a communication node and a storage medium. The data transmitting apparatus includes: converting a data frame to be transmitted into a data frame group; encapsulating the data frame group to obtain an encapsulated frame; and transmitting the encapsulated frame.

A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

Provided are a method of bandwidth allocation for transmitting mobile data and a network device. The bandwidth allocation method includes receiving a cooperative transport interface (CTI) message including a traffic pattern corresponding to a CTI pattern identification (ID) from a distributed unit (DU) of a mobile network, and allocating a bandwidth for transmitting mobile data based on the traffic pattern included in the CTI message.

In an embodiment, a data collection method includes: collecting, by a data collection device, performance indicator data of a target device based on a collection periodicity; detecting change amplitude of the collected performance indicator data that is in a change detection window, where the change detection window includes multiple collection periodicities; and when it is detected that change amplitude of the performance indicator data that is in the change detection window is greater than or equal to a change detection threshold, sending the performance indicator data that is in the change detection window to a data analysis device.

Signals may be forwarded to a variety of ports for transmission. The signals may be modulated for transmission. The forwarding of signals to ports may be accomplished by forwarding the signals to one or more signal modulators using a processing unit. The mapping of signals to ports may change responsive to a triggering event.

A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

An optical local area network includes a passive optical distribution fabric interconnecting a plurality of nodes including a first node and a plurality of remaining nodes, a hub that includes the first node and a control module, and a client network adapter coupled to each of the remaining nodes for responding to the control module. The control module controls timing for each of the client network adapters to transmit signals over the passive optical distribution fabric and distribution of signals to each of the nodes.

This application provides an optical processing module and an optical processing apparatus. The optical processing apparatus includes at least two optical processing modules. The optical processing module includes a processing unit, and further includes at least one first interface, at least one second interface, and at least one third interface. Each of at least one first interface is configured to connect to and communicate with an upper-layer device, each of the at least one second interface is configured to connect to and communicate with a user-side device, each of the at least one third interface is configured to connect to and communicate with a third interface of another optical processing module, and the processing unit is configured to process, according to a first control instruction, data received from the at least one first interface and the at least one third interface.