US 7,606,490 B2
Adaptive preamble adjustment for burst-mode optical systems
Rodger Dalton, Wake Forest, N.C. (US); Eugen H. Ruegg, Cary, N.C. (US); and Jason Teeter, Apex, N.C. (US)
Assigned to Alcatel Lucent, Paris (France)
Filed on Dec. 01, 2005, as Appl. No. 11/292,131.
Prior Publication US 2007/0127923 A1, Jun. 07, 2007
Int. Cl. H04J 14/00 (2006.01)
U.S. Cl. 398—71  [398/70; 398/72] 14 Claims
OG exemplary drawing
 
1. A method for adjusting a data transmission packet preamble length in an optical network, wherein the packet comprises a preamble followed by data bits, comprising the steps of:
measuring a signal strength of a signal received from at least one optical network unit (ONU) in the optical network at an optical line terminator (OLT); and
causing the at least one ONU to transmit a packet having a preamble with a length responsive to the measured signal strength.