发明名称 |
Demodulation apparatus for efficiently embodying adaptive modulation and coding method in OFDMA based packet communication system and method thereof |
摘要 |
Disclosed is a demodulation apparatus for receiving signals by an adaptive modulation and coding method, and demodulating the signals, in an OFDMA based packet communication system, comprising: a QAM demapper for performing QAM demapping to the received signals by a modulation method using a maximum modulation ratio, until modulation methods for each of sub-channels are analyzed; a slot buffer for storing the data outputted from the QAM demapper; a channel decoder for decoding the data stored in the slot buffer and analyzing modulation methods for each sub-channels and transferring the analyzed modulation methods to the QAM demapper; and in at the same time, reading valid data from the data stored in the slot buffer, based on the analyzed modulation methods for each sub-channels, and demodulating the valid data. |
申请公布号 |
US8068510(B2) |
申请公布日期 |
2011.11.29 |
申请号 |
US20040583167 |
申请日期 |
2004.11.03 |
申请人 |
KIM JUN-WOO;KIM YOUNG-HOON;CHAE SU-CHANG;PARK YOUN-OK;ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;SAMSUNG ELECTRONICS CO., LTD;KT CORPORATION;SK TELECOM., LTD;KTFREETEL CO., LTD;HANARO TELECOM., INC. |
发明人 |
KIM JUN-WOO;KIM YOUNG-HOON;CHAE SU-CHANG;PARK YOUN-OK |
分类号 |
H04L27/34;H04Q11/02;H04B |
主分类号 |
H04L27/34 |
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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