Receiving method and receiver
AssigneeSanyo Electric Co., Ltd.
InventorYoshiharu Doi
Life of this patent
Estimating the term…
Abstract
Baseband input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting coefficients. A gap compensating unit compensates control weighting coefficients with a gap error signal and outputs the updated weighting coefficients acquired as a result of the compensation. A weight switching unit selects the initial weighting coefficients in the interval of the training signal and selects the updated weighting coefficients in the interval of the data signal. Then the weight switching unit outputs the selected initial weighting coefficients and updated weighting coefficients as the weighting coefficients. A synthesizing unit weights the baseband received signals with the weighting coefficients and then sums them up.
Claims12
A receiver including:
- an input unit which inputs a plurality of signals on which a processing is to be performed;
- a switching unit which switches a plurality of weighting coefficients by which the plurality of inputted signals are multiplied between a plurality of first weighting coefficients and a plurality of second weighting coefficients;
- a controller which instructs the switching unit to switch the weighting coefficients from the plurality of first weighting coefficients to the plurality of second weighting coefficients in a prescribed interval;
- a synthesizer which synthesizes results of multiplications, where the multiplications are performed on the plurality of inputted signals and the plurality of weighting coefficients;
- a weighting coefficient updating unit which updates a plurality of third weighting coefficients adaptively based on the plurality of inputted signals;
- a gap estimator which estimates gaps between the plurality of first weighting coefficients and the plurality of third weighting coefficients by performing correlation processing between at least one of the plurality of inputted signals and a known signal;
- and
- a gap compensator which generates the plurality of second weighting coefficients by compensating the plurality of third weighting coefficients based on the estimated gaps, wherein
- the signals input in the input unit are burst signals,
- the controller requests the switching of the plurality of weighting coefficients in the middle of a burst signal, and
- the plurality of third weighting coefficients in the weighting coefficient updating unit and the plurality of second weighting coefficients in the gap compensator are not derived by updating the plurality of first weighting coefficients.
A receiving method, including:
- inputting a plurality of signals on which a processing is to be performed;
- switching a plurality of weighting coefficients by which the plurality of inputted signals are multiplied between a plurality of first weighting coefficients and a plurality of second weighting coefficients;
- giving an instruction of switching the weighting coefficients from the plurality of first weighting coefficients to the plurality of second weighting coefficients;
- synthesizing results of multiplications, where the multiplications are performed on the plurality of inputted signals and the plurality of weighting coefficients;
- updating a plurality of third weighting coefficients adaptively based on the plurality of inputted signals;
- estimating gaps between the plurality of first weighting coefficients and the plurality of third weighting coefficients by performing correlation processing between at least one of the plurality of inputted signals and a known signal;
- and
- generating the plurality of second weighting coefficients by compensating the plurality of third weighting coefficients based on the estimated gaps, wherein
- the signals to be input are burst signals,
- the switching between the plurality of first weighting coefficients and the plurality of second weighting coefficients is requested in the middle of a burst signal, and
- the plurality of third weighting coefficients in the updating step and the plurality of second weighting coefficients in the generating step are not derived by updating the plurality of first weighting coefficients.
Dependencies are inferred from the claim text.