| 摘要 |
The present invention discloses a method and an apparatus for testing Total Isotropic Sensitivity (TIS) in a multi-antenna Multiple Input Multiple Output (MIMO) system. The apparatus includes a base station simulator, a multipath fading channel simulator and a darkroom including a measuring antenna and a device under test placed in the darkroom. During the testing, the base station simulator generates transmitting signals of multiple transmitting antennas, and the transmitting signals have characteristic of orthogonal polarization and adopt Space Time Block Code or Space Frequency Block Code; the multipath fading channel simulator adds corresponding channel parameters and noise interference parameters to the transmitting signals, and transmits the transmitting signals which have been decayed to the measuring antenna in the darkroom to send the transmitting signals which have been decayed to the device under test; the device under test performs multi-antenna receiving to the transmitting signals, performs Maximum Ratio Combining on received signals, and acquires the Total Isotropic Sensitivity (TIS) according to the received signals which have been combined. In the present invention, the testing for the Total Isotropic Sensitivity (TIS) in the multi-antenna MIMO system can be achieved. |
