APPARATUS AND METHOD FOR ENHANCING CHANNEL ESTIMATION ACCURACY IN COMMUNICATION SYSTEM
First Claim
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1. An apparatus for estimating a channel, the apparatus comprising:
- a first channel response estimating unit to estimate a first channel impulse response from a received signal;
a weight calculating unit to determine a weight value applied to each channel coefficient using the first channel impulse response; and
a second channel response estimating unit to estimate a second channel impulse response by applying the weight value to the first channel impulse response.
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Abstract
An apparatus and method for calculating a correlation value using a first channel impulse response estimated from a received signal, determining a weight value based on the correlation value, applying the weight value to the first channel impulse response, and estimating a second channel impulse response is provided.
20 Citations
13 Claims
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1. An apparatus for estimating a channel, the apparatus comprising:
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a first channel response estimating unit to estimate a first channel impulse response from a received signal; a weight calculating unit to determine a weight value applied to each channel coefficient using the first channel impulse response; and a second channel response estimating unit to estimate a second channel impulse response by applying the weight value to the first channel impulse response. - View Dependent Claims (2, 3, 4)
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5. An apparatus for estimating a channel, the apparatus comprising:
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a first channel response estimating unit to estimate a first channel frequency response from a received signal; a first converting unit to convert the first channel frequency response to a first channel impulse response; a weight calculating unit to determine a weight value applied to each channel coefficient using the first channel impulse response; a second channel response estimating unit to estimate a second channel impulse response by applying the determined weight value to the first channel impulse response; and a second converting unit to convert the second channel impulse response to a second channel frequency response. - View Dependent Claims (6, 7)
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8. A method of estimating a channel, the method comprising:
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estimating a first channel impulse response from a received signal using the first channel impulse response; calculating a correlation value using the first channel impulse response; determining a weight value based on the calculated correlation value; and estimating a second channel impulse response by applying the determined weight value to the first channel impulse response. - View Dependent Claims (9, 10, 11)
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12. A method of estimating a channel, the method comprising:
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estimating a first channel frequency response from a received signal; converting the first channel frequency response to a first channel impulse response in a form of a time domain signal; calculating a correlation value using the first channel impulse response; determining a weight value based on the correlation value; estimating a second impulse response by applying the determined weight value to the first channel impulse response; and converting the second channel impulse response to a second channel frequency response in a form of a frequency domain signal. - View Dependent Claims (13)
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Specification