发明名称 |
MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, USER DEVICE, AND METHOD |
摘要 |
A base station apparatus is used in a mobile communication system in which at least a shared data channel is transmitted by an orthogonal modulation scheme using an I-channel and a Q-channel. The base station apparatus includes a providing unit providing Acknowledgement/Non-Acknowledgement information indicating whether retransmission of a signal received in uplink is required; a mapping unit mapping a number of multiplexed users of the Acknowledgement/Non-Acknowledgement information to the I-channel or the Q-channel based on a predetermined mapping table; and a reporting unit reporting the Acknowledgement/Non-Acknowledgement information to the respective users. The mapping table indicates that, when the number of the multiplexed users is equal to or less than a predetermined number, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel or the Q-channel, and otherwise, the Acknawledgement/Non-Acknowledgement information is associated with the I-channel and the Q-channel. |
申请公布号 |
EP2242193(A1) |
申请公布日期 |
2010.10.20 |
申请号 |
EP20080870296 |
申请日期 |
2008.12.26 |
申请人 |
NTT DOCOMO, INC. |
发明人 |
MIKI, NOBUHIKO;SAWAHASHI, MAMORU;HIGUCHI, KENICHI |
分类号 |
H04J11/00;H04L1/18;H04L5/00 |
主分类号 |
H04J11/00 |
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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