Data scrambling initialization

A method comprising:

• scrambling data with a scrambler;
• inserting the scrambled data into frames;
• transmitting the frames in data blocks over a link;
• generating an unscrambled pseudo-random sequence;
• periodically inserting the unscrambled pseudo-random sequence into a frame;
• initializing the scrambler to a starting point based on the insertion of the unscrambled pseudo-random sequence into the frame;
• and
• transmitting the frame in a data block over the link.

A system comprising:

• a transmitter device configured to scramble data with a scrambler, to insert the scrambled data into frames, and to transmit the frames in data blocks over a link;
• and
• a receiver device configured to receive the data blocks over the link, to detect the scrambled data in the frames of the data blocks, and to descramble the scrambled data with a descrambler;
• the transmitter device further configured to periodically transmit a data block that includes a frame with an unscrambled pseudo-random sequence over the link, and to initialize the scrambler based on the periodic transmission of the unscrambled pseudo-random sequence;
• the receiver device further configured to receive the data block over the link, to detect the unscrambled pseudo-random sequence in the frame of the data block, and to initialize the descrambler based on the periodic transmission of the unscrambled pseudo-random sequence.