发明名称 |
SIMULATION PROCESS OF RADIOFREQUENCY SCENARIO IN RADIO MOBILE ENVIRONMENT AND TESTING SYSTEM EMPLOYING SAID PROCESS |
摘要 |
<p>A testing system includes simulation equipment for generating a radiofrequency test signal for the receivers of a base transceiver station, which is equipped with an intelligent array antenna having N sensors. The simulation equipment generates a complex signal consisting of N identical radiofrequency signals with differing phases. These signals are conveyed towards N antenna input connectors of the receivers to be tested. The N test signals are obtained by generating as many groups of N digital isofrequential carriers as are required to simulate the directions of a useful signal with an arbitrary number of echoes, and the directions of an arbitrary number of isofrequential interferent carriers. The N carriers of each group are appropriately modulated and digitally multiplied by the same number of relevant beamforming coefficients to produce, within each group, gradually increasing phase values.</p> |
申请公布号 |
EP1038366(A1) |
申请公布日期 |
2000.09.27 |
申请号 |
EP19980961242 |
申请日期 |
1998.11.26 |
申请人 |
ITALTEL S.P.A. |
发明人 |
DONATI, MARCELLO;POLITI, MARCO |
分类号 |
H04B17/00;(IPC1-7):H04B17/00 |
主分类号 |
H04B17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|