CHANNEL ESTIMATION APPARATUS AND CHANNEL ESTIMATION METHOD
First Claim
1. A channel estimation apparatus, wherein channel state indication signals are transmitted to communication stations via wireless channels and SINR (Signal to Interference and Noise Ratio) values of the channel state indications signals or channel environment parameters according to the SINR values are received from the communication stations as feedback signals, the apparatus comprising:
- an average measurement unit for measuring average values of the feedback signals over a period of time, each of the average values being an average value of feedback signals received from an identical communication station during the period of time; and
a channel evaluation unit for estimating wireless channel quality of each communication station according to a geographical environment thereof based on the average values measured by the average measurement unit.
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Abstract
Channel state indication signals are transmitted to communication stations via wireless channels and SINR (Signal to Interference and Noise Ratio) values of the channel state indications signals or channel environment parameters according to the SINR values are received from the communication stations as feedback signals. A channel estimation apparatus includes: an average measurement unit for measuring average values of the feedback signals over a period of time, each of the average values being an average value of feedback signals received from an identical communication station during the period of time; and a channel evaluation unit for estimating wireless channel quality of each communication station according to a geographical environment thereof based on the average values measured by the average measurement unit.
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Citations
26 Claims
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1. A channel estimation apparatus, wherein channel state indication signals are transmitted to communication stations via wireless channels and SINR (Signal to Interference and Noise Ratio) values of the channel state indications signals or channel environment parameters according to the SINR values are received from the communication stations as feedback signals, the apparatus comprising:
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an average measurement unit for measuring average values of the feedback signals over a period of time, each of the average values being an average value of feedback signals received from an identical communication station during the period of time; and a channel evaluation unit for estimating wireless channel quality of each communication station according to a geographical environment thereof based on the average values measured by the average measurement unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A channel estimation apparatus, comprising:
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an average measurement unit for measuring an average value of pilot signals over a period of time, the pilot signals being SINR (Signal to Interference and Noise Ratio) values of channel state indication signals received from a communication station via a wireless channel during the period of time or channel environment parameters according to the SINR values; and a channel evaluation unit for estimating wireless channel quality according to a geographical environment based on the average values measured by the average measurement unit. - View Dependent Claims (12, 13)
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14. A channel estimation method, wherein channel state indication signals are transmitted to communication stations via wireless channels and SINR (Signal to Interference and Noise Ratio) value of the channel state indications signals or channel environment parameters according to the SINR values are received from the communication stations as feedback signals, the method comprising the steps of:
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(a) measuring average values of feedback signals over a period of time, each being an average value of feedback signals received from an identical communication station during the period of time; and (b) estimating wireless channel quality of each communication station according to a geographical environment thereof based on the average values measured in step (a). - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A channel estimation method, comprising the steps of:
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(a) measuring an average value of pilot signals over a period of time, the pilot signals being SINR (Signal to Interference and Noise Ratio) values of channel state indication signals received from a communication station via a wireless channel during the period of time or channel environment parameters according to the SINR values; and (b) estimating wireless channel quality according to a geographical environment based on the average values measured in step (a). - View Dependent Claims (25, 26)
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Specification