Method and device for timing alignment
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsPeng Liu, Junfeng Jie
Life of this patent
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Abstract
A method and device for timing alignment are disclosed. The method includes widening spectra of two signals for timing misalignment estimation; performing cross-correlation between the two spectrum-widened signals; and estimating the timing misalignment between the two signals according to a result of the cross-correlation. Therefore, an accurate time alignment result will be obtained with low complexity. Furthermore, it will be appropriate for all types of signals including separated multi-carrier signals.
Claims20
A method for timing alignment, comprising:
- generating two spectrum-widened signals by widening spectra of two signals for timing misalignment estimation;
- determining a result of performing cross-correlation between the two spectrum-widened signals;
- and
- estimating the timing misalignment between the two signals based on the result of performing the cross-correlation,
- wherein widening the spectra of the two signals comprises stitching a stitching number of signals in a frequency for the two signals respectively to obtain the two spectrum-widened signals.
A device for timing alignment, comprising:
- processing circuitry;
- and
- memory coupled to the processing circuitry and having instructions stored therein that are executable by the processing circuitry to cause the device to perform operations comprising:
- generating two spectrum-widened signals by widening spectra of two signals for timing misalignment estimation;
- determining a result of performing cross-correlation between the two spectrum-widened signals;
- and
- estimating the timing misalignment between the two signals based on the result of performing the cross-correlation,
- wherein widening the spectra of the two signals comprises shifting the two signals in the frequency according to a predetermined shift value and a predetermined stitching number, to obtain a stitching number of signals for the two signals respectively.
A non-transitory computer-readable medium having instructions stored therein that are executable by processing circuitry of a device for timing alignment to cause the device to perform operations comprising:
- generating two spectrum-widened signals by widening spectra of two signals for timing misalignment estimation;
- determining a result of performing cross-correlation between the two spectrum-widened signals;
- and
- estimating the timing misalignment between the two signals based on the result of performing the cross-correlation,
- wherein widening the spectra of the two signals comprises stitching a stitching number of signals in a frequency for the two signals respectively to obtain the two spectrum-widened signals.
Dependencies are inferred from the claim text.