Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel
AssigneeEricsson Inc.
InventorKAMBIZ C. ZANGI
Life of this patent
Estimating the term…
Abstract
A method of estimating and/or tracking time varying radio channels comprises the step of receiving signals transmitted over the channels and converting the signals to digital samples for processing. Positions of fading rays of the channel medium are determined. Impulse response of a channel medium are estimated for each of the estimated positions. Estimates of the time varying radio channels are then calculated using the digital samples and the estimated impulse responses.
Claims10
The method of estimating time varying radio channels, comprising the steps of:
- receiving signals transmitted over the channels and converting the signals to digital samples for processing;
- determining positions of fading rays of the channel medium;
- estimating impulse response of a channel medium for each of the estimated positions;
- and
- calculating estimates of the time varying radio channels using the digital samples and the estimated impulse responses of the medium.
A channel estimator adapted to estimate or track time varying radio channels, comprising:
- means for receiving signals transmitted over the channels and converting the signals to digital samples for processing;
- means for determining positions of fading rays of the channel medium;
- means for estimating impulse response of a channel medium for each of the estimated positions;
- and
- means for calculating estimates of the time varying radio channels using the digital samples and the estimated impulse responses of the medium.
Dependencies are inferred from the claim text.