发明名称 |
APPARATUS AND METHOD FOR TRANSMIT BEAMFORMING IN MULTI-ANTENNA OFDM BASED WIRELESS SYSTEMS |
摘要 |
<p>PURPOSE: A transmit beamforming method and apparatus in an OFDM based multiantenna wireless system are provided to reduce a feedback information quantity or the quantization error of a codebook. CONSTITUTION: A channel information estimator and a channel correlation information generator(201) estimates channel information from a pilot signal and deduces time and frequency channel correlation information from the estimated channel information. A beam weight estimator(205) estimates a beam weight for a present channel. A differential vector generation and quantization unit(207) quantizes a differential vector using a defined codebook.</p> |
申请公布号 |
KR20110081592(A) |
申请公布日期 |
2011.07.14 |
申请号 |
KR20100001826 |
申请日期 |
2010.01.08 |
申请人 |
SNU R&DB FOUNDATION |
发明人 |
LEE, YONG HWAN;KWON, O JIN;LEE, KEON WOOK |
分类号 |
H04B7/04;H04L27/26 |
主分类号 |
H04B7/04 |
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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