Data processing method, communication equipment and communication system

Abstract

Embodiments of the invention provide a data processing method, communication equipment and a communication system. In the packet service transmitting process, a code block flow of a packet service is firstly born, then the obtained code block flow is subjected to rate adaption, and finally, the code block flow after rate adaption is mapped into an optical channel payload unit (OPU) signal. Compared with a traditional GFP mapping mode, the data processing method, the communication equipment and the communication system provided by the embodiments of the invention are low in complexity and / or high in bandwidth utilization rate.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data processing method, communication equipment and a communication system. Background technique [0002] The current Optical Transport Network (OTN) technology is the core technology of the transport network, including the technical specifications of the electrical layer and the optical layer, with rich operation, management and maintenance (Operation Administration and Maintenance, OAM), and powerful serial connection monitoring (Tandem Connection Monitoring, TCM) capability and out-of-band forward error correction (Forward Error Correction, FEC) capability, which can realize flexible scheduling and management of large-capacity services. [0003] Such as figure 1 As shown, the OTN frame is a 4080×4 modular structure, including the frame alignment byte FAS, which provides the function of frame synchronization positioning. OTUk OH is the optical channel transpor...

AI Technical Summary

Problems solved by technology

As the speed increases, this mapping method gradually shows its inherent problems. 1) GFP adopts the byte granularity mapping method. With the rapid increase of the speed, if the byte granularity is still used for GFP mapping and encapsulation, the implementation complexity will decrease. greatly increase

2) Since the generated GFP frame is not a fixed frame length during the GFP mapping process, there are more cases where it is necessary to identify the possible location of the GFP frame header, and the processing of each shot data is different, which further aggravates the high-speed and large-bit-width 3) Due to the GFP mapping process, the generated GFP frame adds GFP core head (core frame header), Payload head (payload frame header), FCS (frame tail check), etc., Reduced bandwidth utilization

Images