Patent ID: 8705964

Claim:
A method of providing upstream data synchronization in an optical communication network, comprising: sending data from an optical network unit, wherein the data comprises a first data frame and the first data frame comprises a header sequence, a synchronization segment, and a data segment, wherein the synchronization segment comprises 66 bits and the 66 bits comprise a first number of bits having nonzero values and a second number of bits having values of zero, wherein the header sequence comprises a sequence and the sequence in binary form comprises 10 1111 1101 0000 0010 0001 1000 1010 0111 1010 0011 1001 0010 1101 1101 1001 1010, and wherein the synchronization segment comprises another sequence and the another sequence in binary form comprises 01 1101 0110 0001 1111 0001 1011 0100 1000 0001 1011 0001 1010 0010 0111 1101 0101.