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US 6,584,150 B1Granted
Dual direction channel estimator
AssigneeKing's College London
InventorsJianjun Wu, Abdol Hamid Aghvami
Life of this patent
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Abstract
In the Global System for Mobile Communication (GSM), an improvement in estimating the channel impulse response (CIR) is obtained by starting up two channel estimators using the midamble and obtaining channel estimations with split burst. The two estimations are then cross-correlated to obtain the estimated CIR.
Claims11
A method for estimating channel impulse response in a global system for mobile communication comprising:
- providing a midamble portion and sub-burst portions of a data signal,
- starting up two channel estimators using the midamble portion,
- obtaining an estimation from each of the channel estimators using the midamble and sub-burst portions, and
- processing the estimations using an unbiased estimation method to obtain a channel impulse response estimate.
1 more element
A method for estimating channel impulse response in a global system for mobile communication comprising:
- providing a midamble portion and sub-burst portions of a data signal,
- starting up two channel estimators using the midamble portion,
- obtaining an estimation from each of the channel estimators using the midamble and sub-burst portions, starting the estimation using an unbiased estimation method to obtain an initial channel impulse response estimate, wherein the unbiased estimation method defines a plurality of modulated data symbols, and
- processing the estimation with an adaptive algorithm for each of the plurality of modulated data symbols.
1 more element
Dependencies are inferred from the claim text.