Patent ID: 8385491

Claim:
In a system packing multiple medium access control protocol data units (MAC PDUs) on a single physical burst and using orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency-division multiple access (OFDMA), a synchronization method comprising: in a running window comprising a group of consecutively received bytes, performing a synchronization by shifting bytes of said group of bytes into the running window, continuously scanning the group of bytes, byte by byte, wherein for each byte, assuming that said byte is the beginning of a MAC PDU header, then verifying that said byte is the beginning of a MAC PDU header by calculating the header checksum on said byte and four bytes following said byte, and comparing the result to the value of a sixth byte following said five bytes and wherein, if the byte in question is indeed the beginning of a new MAC PDU header, then the calculated checksum value on the first five bytes will equal the value in the sixth byte, and synchronization of the physical burst is declared and declaring there is a large likelihood that the bytes form a valid MAC PDU header.