DOPPLER SHIFT COMPENSATION APPARATUS AND METHOD
First Claim
1. A Doppler shift compensation apparatus, comprising:
- an angle measuring unit configured to measure Angle Of Arrival (AOA) information of a User Equipment (UE);
a velocity calculating unit configured to calculate a velocity information of the UE based on the measured AOA information;
a frequency shift estimating unit configured to estimate Doppler shift of the UE based on the measured AOA information and the calculated velocity of the UE;
a frequency shift compensation triggering unit configured to trigger Doppler frequency shift compensation based on the estimated Doppler shift of the UE; and
a frequency shift compensating unit configured to perform the Doppler frequency shift compensation based on a trigger instruction received from the frequency shift compensation triggering unit.
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Abstract
The present disclosure relates to a Doppler shift compensation scheme applicable in a high mobility communication system. In some examples, a Doppler shift compensation apparatus may include an angle measuring unit configured to measure Angle Of Arrival (AOA) information of a User Equipment (UE); a velocity calculating unit configured to calculate a velocity information of the UE based on the measured AOA information; a frequency shift estimating unit configured to estimate Doppler shift of the UE based on the measured AOA information and the calculated velocity of the UE; a frequency shift compensation triggering unit configured to trigger Doppler frequency shift compensation based on the estimated Doppler shift of the UE; and a frequency shift compensating unit configured to perform the Doppler frequency shift compensation based on a trigger instruction from the frequency shift compensation triggering unit. Doppler shift compensation methods are also described in some other examples of the present disclosure.
140 Citations
16 Claims
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1. A Doppler shift compensation apparatus, comprising:
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an angle measuring unit configured to measure Angle Of Arrival (AOA) information of a User Equipment (UE); a velocity calculating unit configured to calculate a velocity information of the UE based on the measured AOA information; a frequency shift estimating unit configured to estimate Doppler shift of the UE based on the measured AOA information and the calculated velocity of the UE; a frequency shift compensation triggering unit configured to trigger Doppler frequency shift compensation based on the estimated Doppler shift of the UE; and a frequency shift compensating unit configured to perform the Doppler frequency shift compensation based on a trigger instruction received from the frequency shift compensation triggering unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A Doppler shift compensation method, comprising:
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measuring Angle Of Arrival (AOA) information of a User Equipment (UE); calculating a velocity information of the UE based on the measured AOA information; estimating Doppler shift of the UE based on the measured AOA information and the calculated velocity of the UE; and triggering and performing Doppler frequency shift compensation based on the estimated Doppler shift of the UE. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification