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US 2009/0190642 A1Published application
Interpolating GRAKE with Two Step Delay Hypothesis Testing
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsKarsten Brueninghaus, Oliver Klein, Jaroslaw Niewczas
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Abstract
The present invention provides a method and apparatus for adapting a current path delay estimate for path delay tracking. The method comprises selecting an operating mode, determining a set of hypothesized path delays based on said operating mode, computing a metric for each hypothesized path delay, and adapting a current path delay estimate based on the computed metrics for the hypothesized path delays.
Claims24
A method implemented in a receiver of adapting a path delay estimate, said method comprising:
- selecting an operating mode to be one of a coarse mode and a fine mode;
- determining a set of hypothesized path delays based on a current path delay estimate and said operating mode, said set of hypothesized path delays having a delay resolution determined based on the selected operating mode;
- computing a metric for each hypothesized path delay;
- and
- adapting said path delay estimate based on said computed metrics for said hypothesized path delays.
2 more elements
A receiver comprising a processor configured to:
- select an operating mode to be one of a coarse mode and a fine mode;
- determine a set of hypothesized path delays based on a current path delay estimate and said operating mode, said set of hypothesized path delays having a delay resolution determined based on the selected operating mode;
- compute a metric for each hypothesized path delay;
- and
- adapt said path delay estimate based on said computed metrics for said hypothesized path delays.
2 more elements
Dependencies are inferred from the claim text.