发明名称 |
RADIO BASE STATION DEVICE, MOBILE STATION DEVICE AND RADIO COMMUNICATION METHOD |
摘要 |
Provided is a downlink reference signal structure suitable for increase in number of transmission layers. A radio base station device (20) has a plurality of transmission antennas; a orthogonal RS sequence generator (22) for generating orthogonal reference signals based on a two-dimensional orthogonal code, the orthogonal reference signals being orthogonalized between downlink reference signals adjacent in two-dimensional directions of frequency direction and time direction to each other in one transmission layer and being orthogonalized in different transmission layers assigned to one radio resource; a multiplexer (23) for multiplexing transmission data and the orthogonal reference signals in the one transmission layer; and a transmitter for transmitting a transmission signal obtained by multiplexing the transmission data and the orthogonal reference signals, via the transmission antenna in transmission layers simultaneously. |
申请公布号 |
US2012155423(A1) |
申请公布日期 |
2012.06.21 |
申请号 |
US201013378681 |
申请日期 |
2010.06.23 |
申请人 |
KISHIYAMA YOSHIHISA;TAKEDA KAZUAKI;TANNO MOTOHIRO;TAOKA HIDEKAZU;NTT DOCOMO, INC. |
发明人 |
KISHIYAMA YOSHIHISA;TAKEDA KAZUAKI;TANNO MOTOHIRO;TAOKA HIDEKAZU |
分类号 |
H04W72/04 |
主分类号 |
H04W72/04 |
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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