Method of transferring user data packets

US7028093B2 · kind B2 · utility

Assignee

• ALCATEL · FR

Inventors

• Peter Jaenecke · Neuenbürg, DE
• Gabriele Schwoerer · Weil der Stadt, DE
• Gunther Jacob · Rutesheim, DE
• Karsten Oberle · Mannheim, DE
• Jurgen Otterbach · Stuttgart, DE
• Hardy Halbauer · Stuttgart, DE

Key dates

• Filing date: Jul 25, 2001
• Grant date: Apr 11, 2006
• Expiry date: May 15, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J13/004
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

It is the object of the invention to make available a method of transferring user data packets from a terminal to a mainframe of an S-CDMA point-to-multipoint system, in which the data transfer is optimized. The method includes the steps of a repeated transmission of reference data packets coded with pilot codes for the duration of the connections between terminals and a mainframe, wherein the reference data packets contain previously known information, and the transmission of user data packets coded with communication codes include the user information to be transferred. In a preferred embodiment of the invention the user data packets are coded synchronously in time to the reference data packets, superimposed on these, and then modulated. Each terminal is allocated a pilot code, and at least one communication code.