发明名称 |
Wireless base station, mobile station, radio communication system, and radio communication method |
摘要 |
The object of the present invention is to achieve reduction of interference between cells and improvement of maximum throughput so as to improve spectrum efficiency. A wireless base station which transmits a radio signal between itself and a plurality of mobile stations by means of OFDMA includes: a multiplexing part for generating user data; a channel assignment control part for selecting a plurality sets of sub-carriers among a plurality of sub-carriers so as to constitute a radio frame containing sub-channels assigned to each of the plurality sets of sub-carriers and for setting in the radio frame the user data and control data by means of orthogonal frequency division multiplexing; and a transmission part for transmitting a radio signal containing the radio frame; where, the channel assignment control part is constituted so that the radio frame is divided into 2 zones for the control and user data and all the sub-channels in the zone for control data are divided into groups for each of sectors; the control data is allocated on the corresponding divided groups; and the user data is allocated on all the sub-channels in the zone for user data.
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申请公布号 |
US7961677(B2) |
申请公布日期 |
2011.06.14 |
申请号 |
US20080062111 |
申请日期 |
2008.04.03 |
申请人 |
NTT DOCOMO, INC. |
发明人 |
TAKAHASHI HIDEAKI;MAEDA NORIYUKI;MIURA SHUNJI;ASAKURA HIROMITSU |
分类号 |
H04W4/00;H03D1/04;H04B7/208;H04L12/56;H04W28/04;H04W72/00;H04W72/02;H04W72/04;H04W92/10 |
主分类号 |
H04W4/00 |
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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