发明名称 Diversity transmission in a mobile radio system
摘要 In a known diversity transmission method, two signals with different identifications are transmitted via two spaced antennas. To be able to apply the diversity principle to more than two antennas, a novel method and a novel base station are proposed. The novel base station comprises two transmitting apparatuses and an assignment apparatus connected thereto which establish connections between each of the two transmitting apparatuses and each of the antennas. The base station further comprises a computing and control apparatus that is connected to the assignment apparatus, which divides the antennas into a first antenna group and a second antenna group, and controls the switching of the connections in such a way that the first antenna group is connected to the first transmitting apparatus, and the second antenna group to the second transmitting apparatus. By several different divisions of the antennas into a first antenna group and a second antenna group, the amplitude and phase differences (phi) existing between the signals at the receiver can be compensated for even if more than two antennas are used. It is also possible to determine that grouping of the antennas with which the highest diversity gain is achieved.
申请公布号 US6636495(B1) 申请公布日期 2003.10.21
申请号 US19990353354 申请日期 1999.07.15
申请人 ALCATEL 发明人 TANGEMANN MICHAEL
分类号 H01Q3/24;H01Q1/24;H01Q3/26;H04B7/06;H04B7/10;(IPC1-7):H04Q7/00 主分类号 H01Q3/24
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