发明名称 |
Apparatus for transmitting and receiving signal using orthogonal codes and non-binary values in CDMA/OFDM system and method thereof |
摘要 |
An apparatus for transmitting and receiving a signal in Code Division Multiple Access/Orthogonal Frequency Division Multiplexing (CDMA/OFDM) system is provided. The apparatus discriminates user signals with a unique spreading code and the orthogonal codes, increases data transmission rate with the non-binary value without increasing of entire bandwidth used by the users, solves signal interference with interleaver and diversity effect of interleaving and OFDM, and maximizes transmission efficiency by varying modulation schemes depending on channel states.
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申请公布号 |
US7215635(B2) |
申请公布日期 |
2007.05.08 |
申请号 |
US20020330800 |
申请日期 |
2002.12.27 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
SONG SEOG-ILL;OH HYUN-SEO;KONG HYUNG-YUN |
分类号 |
H04B14/00;H04J11/00;H04B1/707;H04B7/216;H04L5/02;H04Q7/00 |
主分类号 |
H04B14/00 |
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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