发明名称 |
APPARATUS AND METHOD FOR ESTIMATING CHANNEL IN OFDM/OFDMA BASED WIRELESS COMMUNICATION SYSTEM |
摘要 |
<p>A channel estimation apparatus of the present invention includes a preamble channel operation unit for carrying out an operation on pilot channel estimation values of pilots, which are transmitted from a transmitting antenna that transmits a preamble, as an improved pilot channel estimation value by employing a preamble channel estimation value based on a preamble included in received signals respectively received by a plurality of receiving antennas, a first channel estimation unit for estimating a channel for each of the receiving antennas through in¬ terpolation of a symbol axis and a frequency axis employing the improved pilot channel estimation value, and a second channel estimation unit for estimating a channel for each of the receiving antennas through interpolation of a symbol axis and a frequency axis employing pilot channel estimation values of pilots transmitted from the same transmitting antenna, of pilots transmitted from a transmitting antenna that does not transmit the preamble, of a plurality of transmitting antennas.</p> |
申请公布号 |
WO2008044888(A1) |
申请公布日期 |
2008.04.17 |
申请号 |
WO2007KR04986 |
申请日期 |
2007.10.11 |
申请人 |
POSDATA CO., LTD.;KIM, BYUNG-CHUL;LI, ZHENG ZI;JI, SANG-BAE |
发明人 |
KIM, BYUNG-CHUL;LI, ZHENG ZI;JI, SANG-BAE |
分类号 |
H04L27/26 |
主分类号 |
H04L27/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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