US 7,577,358 B2
Apparatus, system and method for optical packet switching using frequency header
Felipe Rudge Barbosa, Campinas (Brazil); Antonio de Campos Sachs, Campinas (Brazil); and Mario Tosi Furtado, Campinas (Brazil)
Assigned to Ericsson Telecomunicacoes S.A., Sao Paulo-SP (Brazil)
Appl. No. 10/502,753
PCT Filed Jan. 30, 2002, PCT No. PCT/BR02/00015
§ 371(c)(1), (2), (4) Date Jul. 28, 2004,
PCT Pub. No. WO03/065758, PCT Pub. Date Aug. 07, 2003.
Prior Publication US 2005/0105906 A1, May 19, 2005
Int. Cl. H04J 14/00 (2006.01)
U.S. Cl. 398—54  [398/32; 398/51] 23 Claims
OG exemplary drawing
 
1. Method for generating an optical packet, comprising:
providing an envelope on an optical carrier;
providing a digital payload signal spanning a frequency baseband;
generating a predetermined unmodulated frequency tone corresponding to header information;
said frequency tone being situated within said frequency baseband;
multiplexing said frequency tone with said digital payload signal to generate a multiplexed signal; and
modulating said multiplexed signal of said frequency tone and said digital payload signal into said optical carrier envelope.