Multi-pass parameter estimation for G-Rake receiver
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorTracy L. Fulghum
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Abstract
In a parametric G-Rake receiver, a method an apparatus computes initial estimates of one or more scaling parameters and initial combining weights for the parametric G-Rake receiver; estimates the SINR of a received signal based on a mean pilot symbol estimate and the initial combining weights; computes revised estimates for one or more scaling parameters based on the estimated SINR and the initial combining weights; and computes revised combining weights based on one or more revised scaling parameter estimates.
Claims16
A method of generating combining weights for a parametric G-Rake receiver, said method comprising:
- computing initial estimates of one or more scaling parameters and initial combining weights for the parametric G-Rake receiver;
- estimating an SINR of a received signal based on a mean pilot symbol estimate and the initial combining weights;
- computing revised estimates for the one or more scaling parameters based on the estimated SINR and the initial combining weights;
- and
- computing revised combining weights based on the one or more of revised scaling parameter estimates.
A G-Rake processor to compute combining weights for Rake combining, said G-Rake processor comprising:
- a first scaling parameter estimator to generate initial estimates of one or more scaling parameters;
- a first combining weight calculator to compute G-Rake initial combining weights based on the initial estimates of said scaling parameters;
- an SINR estimator to generate an SINR estimate of a received signal based on a mean pilot symbol estimate and the initial combining weights;
- a second scaling parameter estimator to generate revised estimates for the one or more scaling parameters based on said SINR estimate;
- and
- a second combining weight calculator to compute revised G-Rake combining weights based on the one or more of revised estimates of said one or more scaling parameters.
Dependencies are inferred from the claim text.