A service processing method and apparatus and a device is disclosed. Synchronization headers of four 66b code blocks are removed, and a 1-bit code block type indication is added as control information of service data, to be encoded as a 257b code block. This avoids a bandwidth waste caused by the synchronization headers, and improves bandwidth utilization. When a 257b code block stream is mapped to an OSUflex frame, the code block type indication is mapped to an overhead area of the OSUflex frame, the four 66b code blocks from which the synchronization headers are removed are mapped to a payload area of the OSUflex frame, and check information obtained by checking the control information is mapped to the overhead area of the OSUflex frame, so that bit error protection is performed on the control information.

A method of encoding input data includes dividing the input data into a plurality of data packets, an input packet of the plurality of data packets including a plurality of digits in a first base system, base-converting the input packet from the first base system to generate a base-converted packet including a plurality of converted digits in a second base system, the second base system having a base value lower than that of the first base system, and incrementing the converted digits to generate a coded packet for transmission through a communication channel.

A method of data processing is applied to a communications device including a first sublayer. A physical sublayer is added above a physical coding sublayer (PCS) of a physical layer, and the physical sublayer is connected to media independent interfaces (xMIIs) with different Ethernet rates. Data signals from different media access control clients (MAC) are interleaved using the physical sublayer. Then, a tx_cmd command is used to instruct the PCS to correspondingly encode an xMII signal. Finally, an encoded xMII signal is sent through a port. According to this method, an encoding function of the PCS may continue to be used, to decouple interleaving from encoding and perform the interleaving through an xMII interface. In this case, port channelization can be implemented for ports with multiple rates, and transmission of a high-priority service is ensured when there is an excessively large quantity of service flows in a transmission process.

Encoding devices, methods and programs that encode with high transmission efficiency by controlling a running disparity are disclosed. In one example, an encoding device includes a scrambling circuit that scrambles an input data string, a calculation circuit that calculates a first running disparity of the scrambled data string, a determination circuit that determines whether or not to invert the scrambled data string on the basis of a first running disparity calculated by the calculation circuit and a second running disparity calculated at a time point before the first running disparity, and an addition circuit that inverts or non-inverts the scrambled data string on the basis of a determination result by the determination circuit, adds a flag indicating the determination result, and outputs the data string. The technology can be applied to devices that perform SLVS-EC standard communication.

A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.

A transmitter encoding apparatus includes a multiplexer and a first transmitter encoder. The multiplexer receives a first digital signal and a second signal and to generate an output, in which the output of the multiplexer includes M-bit code words of the first digital signal and M-bit code words of the second digital signal arranged in an interleaved manner. The first transmitter encoder receives the output of the multiplexer and generates N-bit code words, and N is not equal to M. The first transmitter encoder determines a current N-bit code word of the N-bit code words according to the output of the multiplexer and a disparity of a previous N-bit code word of the N-bit code words. The first transmitter encoder transmits the N-bit code words to a receiver decoding apparatus including a demultiplexer and a first receiver decoder configured to decode the N-bit code words.

Systems and methods include receiving a plurality of symbols that are part of a defined Digital Signal Processing (DSP) frame for coherent optical communication, wherein the DSP frame structure has a messaging channel incorporated therein that includes a subset of the plurality of symbols; capturing multiple samples of the messaging channel; and determining a message in the messaging channel based on analysis of the multiple samples. The method can further include transmitting, in the messaging channel, a reply to the message with the reply being repeated multiple times. The analysis is performed prior to Forward Error Correction (FEC) decoding on the data path.

Various examples of the present disclosure relate to a transmitter apparatus, device, method, and computer program, to a receiver apparatus, device, method, and computer program, and to corresponding source and destination devices and communication devices. The transmitter apparatus comprises a plurality of ports for data to be transmitted to a destination device, with each port being associated with a transmission data rate. The transmitter apparatus comprises processing circuitry configured to obtain data to be transmitted to the destination device via the plurality of ports. The processing circuitry is configured to multiplex the data to be transmitted to the destination device according to a weighted round-robin scheme to generate a multiplexed data stream. The weights of the weighted round-robin scheme are based on the transmission data rate of the respective port the data is obtained over. The processing circuitry is configured to transmit the multiplexed data stream to the destination device.

This application provides a data stream processing method and a network element device. The method includes: obtaining, by a first network element device, a first data stream, where the first data stream includes a first data unit and a first data padding unit; and adjusting, by the first network element device, a quantity of second data padding units in the first data stream, where a relative position of the first data unit and the first data padding unit in the first data stream is the same as a relative position of the first data unit and the first data padding unit in a second data stream, and the second data stream is an adjusted first data stream. When adjusting a rate, the first network element device does not add or delete the first data padding unit in the first data stream.

A method of encoding input data includes dividing the input data into a plurality of data packets, an input packet of the plurality of data packets including a plurality of digits in a first base system, base-converting the input packet from the first base system to generate a base-converted packet including a plurality of converted digits in a second base system, the second base system having a base value lower than that of the first base system, and incrementing the converted digits to generate a coded packet for transmission through a communication channel.