Abstract: Embodiments of this application provide a receive end apparatus. The receive end apparatus includes a trans-impedance amplifier TIA, a control apparatus, and a first storage module. The control apparatus is configured to receive a signal transmit identity of a first signal, and determine, based on a correspondence that is between a signal transmit identity and a gain and that is stored in the first storage module, a first gain corresponding to the signal transmit identity of the first signal, where the signal transmit identity indicates a transmit end apparatus of a signal or a channel for receiving the signal. The TIA is configured to obtain the first gain from the control apparatus, and after receiving the first signal, amplify the first signal by using the first gain.

Abstract: The present disclosure relates to data processing methods and apparatuses. In one example method, a first data is obtained from first optical path data, where the first data is obtained by dividing the first optical path data. Padding data and the first data are added into a first data frame to form target data. Then the target data is encoded.

Abstract: The present disclosure relates to data processing methods and apparatus. One example method includes obtaining a first data block from first optical path data, adding padding data and the first data block into a target information bit in a first data frame to form target data, encoding the target data to obtain a first code block, and sending the first code block.

Abstract: The present disclosure discloses example method and apparatus for switching a line bandwidth of an optical transport network. One example method includes a network device switching an optical transport network (OTN) frame from a first bandwidth to a second bandwidth at a granularity of a substructure to generate a first OTN frame with the second bandwidth, where a bandwidth of the substructure is a specified value, and a difference between the first bandwidth and the second bandwidth is a multiple of the specified value. The first OTN frame with the second bandwidth is encapsulated as an encapsulated frame with the second bandwidth according to a first encapsulation protocol. The encapsulated frame with the second bandwidth is transmitted at an optical layer.

Abstract: The present disclosure relates to data processing methods and apparatus. One example method includes obtaining a first data block from first optical path data, adding padding data and the first data block into a target information bit in a first data frame to form target data, encoding the target data to obtain a first code block, and sending the first code block.

Abstract: The present disclosure relates to data processing methods and apparatus. One example method includes obtaining a first data block, where the first data block is a data block obtained by dividing first optical path data, adding clock simplified padding data and the first data block into a target information bit in a first data frame to form target data, where the target information bit is an information bit that is preset in the first data frame and that is used to pad optical path data, encoding the target data by using a first error correction encoding scheme to obtain a first code block that has a mapping relationship with the first data frame, where the first error correction encoding scheme matches a frame structure of the first data frame, and sending the first code block.

Abstract: The present disclosure discloses example method and apparatus for switching a line bandwidth of an optical transport network. One example method includes a network device switching an optical transport network (OTN) frame from a first bandwidth to a second bandwidth at a granularity of a substructure to generate a first OTN frame with the second bandwidth, where a bandwidth of the substructure is a specified value, and a difference between the first bandwidth and the second bandwidth is a multiple of the specified value. The first OTN frame with the second bandwidth is encapsulated as an encapsulated frame with the second bandwidth according to a first encapsulation protocol. The encapsulated frame with the second bandwidth is transmitted at an optical layer.

Abstract: The present disclosure relates to data processing methods and apparatus. One example method includes obtaining a first data block, where the first data block is a data block obtained by dividing first optical path data, adding clock simplified padding data and the first data block into a target information bit in a first data frame to form target data, where the target information bit is an information bit that is preset in the first data frame and that is used to pad optical path data, encoding the target data by using a first error correction encoding scheme to obtain a first code block that has a mapping relationship with the first data frame, where the first error correction encoding scheme matches a frame structure of the first data frame, and sending the first code block.

Abstract: A method for processing data on an OTN optical transport network is disclosed in embodiments of the present invention, including: receiving and buffering, through an ILK interface, an Ethernet data frame sent by an Ethernet board; encapsulating the Ethernet data frame into a Generic Framing Procedure GFP data frame; and mapping the GFP data frame to a virtual container of the OTN to form an OTN data frame, and transporting the OTN data frame to a corresponding transparent transmission board through a cross-connect board. An apparatus and a system for processing data on an OTN optical transport network are further disclosed in the embodiments of the present invention.

Abstract: A full-T cross apparatus and method are provided. The full-T cross apparatus includes an input module, which includes multiple input channels; and multiple output modules, each of which includes an output channel, an output control module, and multiple data storage modules. Each of the multiple data storage modules is corresponding to each of the multiple input channels of the input module. The multiple output modules are configured to receive service data from the multiple input channels according to the output channels corresponding to the service data, and send the service data according to output time slots corresponding to the service data. In this way, the chip size is reduced to some extent, and further, the costs and power consumption of the chip are reduced.

Abstract: A full-T cross apparatus and method are provided. The full-T cross apparatus includes an input module, which includes multiple input channels; and multiple output modules, each of which includes an output channel, an output control module, and multiple data storage modules. Each of the multiple data storage modules is corresponding to each of the multiple input channels of the input module. The multiple output modules are configured to receive service data from the multiple input channels according to the output channels corresponding to the service data, and send the service data according to output time slots corresponding to the service data. In this way, the chip size is reduced to some extent, and further, the costs and power consumption of the chip are reduced.