发明名称 |
Transmission diversity for a CDMA/TDD mobile telecommunication system |
摘要 |
In a base station which has a plurality of antennas, each of a plurality of comparison circuits operates to compare correlation levels, which are obtained by despreading received signals for a plurality of channels, with each other with respect to the antennas. Each of a plurality of transmission antenna selecting circuits operates to determine from which antenna a transmission signal is to be transmitted for every channel. Each of a plurality of multiplexing circuits operates to multiplex the transmission signals of the individual channels, which are spread, for every antenna. As a result, on the basis of the result of the comparison of the correlation levels with respect to the antennas, a transmission antenna is selected for every channel, and the signals of the channels that are to be transmitted by a given antenna are multiplexed, whereby the base station achieves transmission diversity.
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申请公布号 |
US5598404(A) |
申请公布日期 |
1997.01.28 |
申请号 |
US19950388416 |
申请日期 |
1995.02.14 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HAYASHI, MASAKI;MIYA, KAZUYUKI;KATO, OSAMU |
分类号 |
H04J13/02;H04B7/04;H04B7/06;H04B7/08;H04B7/26;(IPC1-7):H04J13/04;H04L5/14 |
主分类号 |
H04J13/02 |
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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