Patent ID: 8948205
Filing Date: 2015-02-03
Classification: H04B,H04J

Abstract:
1. A mapping method used in an Optical Transport Network (OTN), comprising: constructing an Optical Channel Data Tributary Unit (ODTU) according to an integer value M larger than 1, wherein the integer value M equals the number of time slots of a High Order Optical Channel Payload Unit (HO OPU) that are to be occupied by data of a Low Order Optical Channel Data Unit (LO ODU) via the ODTU; mapping the data of the LO ODU into a payload area of the ODTU by mapping the data of the LO ODU in units of M bytes, such that multiple units of M bytes are mapped into the payload area of the ODTU; encapsulating overhead information to an overhead area of the ODTU; and multiplexing the ODTU, into which the data of the LO ODU has been mapped and to which the overhead information has been encapsulated, to the HO OPU.