US 5,673,286 A · Spread spectrum multipath processor system and method

Abstract

A spread-spectrum system and method for providing high capacity communications through multipath compensation. A multipath processor including a first plurality of correlators, a second plurality of correlators, a first adder, a second adder, and a selector device or a combiner device is provided for tracking a spread-spectrum signal arriving in a plurality of groups. The first plurality of correlators despreads a first group of spread-spectrum signals as a first group of despread signals which are added by the first adder to generate a first combined-despread signal. The second plurality of correlators despreads a second group of spread-spectrum signals as a second group of despread signals which are added by the second adder to generate a second combined-despread signal. The selector device selects either the first or the second combined-despread signal and outputs the selected signal. Alternatively, the combiner device combines the first and the second combined-despread signals and outputs the combined signal.

Claims24

Dependent claims

A multipath processor for tracking a spread-spectrum signal within a plurality of groups of spread-spectrum signals, each group having a plurality of spread-spectrum signals, said multipath processor comprising:

first means for despreading a first plurality of spread-spectrum signals within a first group, to generate, respectively, a first plurality of despread signals;
first means, coupled to said first despreading means, for combining the first plurality of despread signals as a first combined-despread signal;
second means for despreading a second plurality of spread-spectrum signals within a second group, to generate, respectively, a second plurality of despread signals;
second means, coupled to said second despreading means, for combining the second plurality of despread signals, as a second combined-despread signal;
and
means, coupled to said first combining means and to said second combining means, for selecting one of the first combined-despread signal and the second combined-despread signal, as an output-despread signal.

3 more elements

A method using a multipath processor for tracking a spread-spectrum signal within a plurality of groups of spread-spectrum signals, each group having a plurality of spread-spectrum signals, comprising the steps of:

despreading a first plurality of spread-spectrum signals within a first group, to generate, respectively, a first plurality of despread signals;
combining the first plurality of despread signals as a first combined-despread signal;
despreading a second plurality of spread-spectrum signals within a second group, to generate, respectively, a second plurality of despread signals;
combining the second plurality of despread signals, as a second combined-despread signal;
and
selecting one of the first combined-despread signal and the second combined-despread signal, as an output-despread signal.

3 more elements

Dependencies are inferred from the claim text.

Spread spectrum multipath processor system and method

Life of this patent

Spread spectrum multipath processor system and method

Life of this patent

Abstract

Claims24