发明名称 |
RADIO COMMUNICATION SYSTEM, RECEPTION DEVICE, DEMODULATION METHOD USED FOR THEM, AND PROGRAM THEREOF |
摘要 |
<p>It is an object to provide a receiving apparatus which is capable of demodulating signals with a very simple arrangement. Receiving apparatus 1 has N reception antennas 11-1 - 11-N, and reception antennas 11-1 - 11-N receive signals. Channel coefficient estimator 12 estimates and outputs channel coefficients from the signals received by respective reception antennas 11-1 - 11-N. QR decomposer 13 is supplied with a channel matrix having the channel coefficients as its elements, performs QR decomposition on the channel matrix, and outputs a Q matrix and an R matrix. A Q H processor 14 is supplied with the Q matrix and the received signals, multiplies the received signals by a complex conjugate transposed matrix of the Q matrix, and outputs converted signal z. A transmitted sequence estimator 15 is supplied with converted signal z and the R matrix and estimates transmitted sequences.</p> |
申请公布号 |
EP1717968(A4) |
申请公布日期 |
2015.06.17 |
申请号 |
EP20050719071 |
申请日期 |
2005.02.14 |
申请人 |
NEC CORPORATION;FUJITSU LIMITED;NTT DOCOMO, INC. |
发明人 |
ITO, TAKUMI;YOSHIDA, SHOUSEI;KAKURA, YOSHIKAZU;SEKI, HIROYUKI;KAWAI, HIROYUKI;HIGUCHI, KENICHI;SAWAHASHI, MAMORU |
分类号 |
H04B7/08;H04B7/04;H04J99/00;H04L1/06 |
主分类号 |
H04B7/08 |
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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