METHOD AND APPARATUS OF DOWNSTREAM FORWARD ERROR CORRECTION ON-OFF CONTROL IN XG-PON1 AND NG-PON2 TWDM-PON SYSTEMS

摘要

A method of receiving data receives a physical frame at a decoder. The physical frame includes a fixed number of m-byte code words and a prefix. The prefix includes an error correction indicator and an extra data indicator. If the error correction indicator is set to a first value and the extra data indicator is set to a second value, the method operates the decoder to perform error correction on each code word of the physical frame to output n-byte data blocks, wherein n is an integer less than m.