Hybrid rake/equalizer receiver for spread spectrum systems
AssigneeThomson Licensing
InventorsAdam Margetts, Alton Keel
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Abstract
There is provided a hybrid rake/equalizer receiver for correlating a delay spread in a spread spectrum system. The hybrid rake/equalizer receiver includes a plurality of adaptive equalizers, each for filtering different regions of the delay spread that have an energy level above a pre-specified threshold to respectively provide equalized-descrambled chip sequences for correlation. Equalizer coefficients respectively corresponding to the plurality of adaptive equalizers are updated individually.
Claims10
A hybrid rake/equalizer receiver for correlating a delay spread in a spread spectrum system, comprising:
- a plurality of adaptive equalizers, each for filtering different regions of the delay spread that have an energy level above a pre-specified threshold to respectively provide equalized-descrambled chip sequences for correlation,
- wherein equalizer coefficients respectively corresponding to the plurality of adaptive equalizers are updated individually.
In a spread spectrum receiver, a method for correlating a delay spread, comprising the steps of:
- respectively allocating each of a plurality of adaptive equalizers to different regions in the delay spread that exceed a pre-specified threshold energy level to filter the different regions so as to provide equalized-descrambled chip sequences there from;
- and
- individually updating equalizer coefficients respectively corresponding to the plurality of adaptive equalizers.
Dependencies are inferred from the claim text.