发明名称 |
WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION APPARATUS, AND METHOD FOR MAPPING RESPONSE SIGNAL IN ARQ |
摘要 |
<p>In ARQ where a plurality of mobile stations share and use a single channel for response signals (ACK/NACK signals), a wireless communication base station apparatus can prevent failure of the ARQ control. In this apparatus, a CRC part (114) performs an error detection using CRC for an uplink data, and generates, as a response signal, an ACK signal in a case of CRC = OK or a NACK signal in a case of CRC = NG. A retransmittal determining part (115) determines whether the response signal is for an initially transmitted data or for a retransmitted data. A constellation control part (116) controls, in accordance with a determination result of the retransmittal determining part (115), a constellation pattern to be used in a modulation in a modulating part (105). The modulating part (105) modulates the response signal for the retransmitted data in accordance with the constellation pattern controlled by the constellation control part (116), that is, a constellation pattern obtained by reversing the constellation pattern of the response signal for the initially transmitted data.</p> |
申请公布号 |
WO2008093774(A1) |
申请公布日期 |
2008.08.07 |
申请号 |
WO2008JP51512 |
申请日期 |
2008.01.31 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;FUKUOKA, MASARU;NISHIO, AKIHIKO;HIRAMATSU, KATSUHIKO;KURI, KENICHI;IMAMURA, DAICHI |
发明人 |
FUKUOKA, MASARU;NISHIO, AKIHIKO;HIRAMATSU, KATSUHIKO;KURI, KENICHI;IMAMURA, DAICHI |
分类号 |
H04L1/16;H04J11/00;H04Q7/38 |
主分类号 |
H04L1/16 |
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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