Patent ID: 6173007
Filing Date: 2001-01-09
Classification: H04B,H04J,H04L

Abstract:
A method for operating a multichannel communication system using direct sequence spread spectrum signal processing comprising:generating a complex data source having a multichannel term and a high-rate term;generating a set of medium rate channels in response to a set of medium rate data sources and a set of long channel codes;generating said multichannel term by summing said set of medium rate channels;generating a high-rate channel in response to a high-rate data source and a short channel code;generating a complex spreading code having an in-phase term and quadrature-phase term;complex multiplying said complex data source and said complex spreading code yielding a real term and an imaginary term;modulating said real term with an in-phase carrier; andmodulating said imaginary term with a quadrature-phase carrier.