发明名称 |
Radio communication device and constellation control method |
摘要 |
Provided is a radio communication device which can improve the negative acknowledgement (NACK) error rate characteristic. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code“1”or“−1”so as to inverse a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a zero auto correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).
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申请公布号 |
US8259781(B2) |
申请公布日期 |
2012.09.04 |
申请号 |
US20080740509 |
申请日期 |
2008.10.28 |
申请人 |
NAKAO SEIGO;IMAMURA DAICHI;PANASONIC CORPORATION |
发明人 |
NAKAO SEIGO;IMAMURA DAICHI |
分类号 |
H04B1/00;H04J13/00 |
主分类号 |
H04B1/00 |
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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