Method and apparatus for code division multiple access communication with increased capacity through self-noise reduction

US6324159A · kind A · utility

Assignee

• Sirius Communications N.V. · BE

Inventors

• Jan Mennekens · Brasschaat, BE
• Carl Mertens · Brasschaat, BE
• Lieven Philips · Aarschot, BE
• Jurgen Vandermot · Leuven, BE
• Jan Vanhoof · Rotselaar, BE

Key dates

• Filing date: May 6, 1999
• Grant date: Nov 27, 2001
• Expiry date: May 6, 2019

Classification

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

Abstract

A method of generating a waveform with a plurality of orthogonal PN codes for use in a communications network utilizing quasi-synchronous code division multiple access. The orthogonal PN codes modulate multiple data streams together with a non-orthogonal PN code having desirable auto-correlation properties. The result is a complex signal with time-aligned PN codes.