Descripción

Key Facts
  • 4x8 and 8x4 MIMO fading
  • Higher order MIMO fading for two cells or carriers, each with 4x2, 2x4, 4x4
  • Settable MIMO correlation between fading channels
  • Pre-defined MIMO fading profiles
  • Setting of steering matrix via correlation matrix elements
  • Support for LTE, WLAN IEEE 802.11

Brief Description Digital standards such as LTE-Advanced and WLAN use MIMO technology to achieve ambitious throughput goals. The R&S®SMW200A is ideal for these MIMO scenarios. Its powerful channel emulator can simulate even complex MIMO fading scenarios. The R&S®SMW-K75 option extends the functionality of the R&S®SMW-K74 MIMO fading/routing option by adding 2x4x2, 2x2x4, 2x4x4 as well as 4x8 and 8x4 MIMO scenarios. The functionality is used to simulate single carriers with higher order MIMO such as 4x8 or 8x4, for example. Furthermore it is used to simulate carrier aggregation or multi-cell scenarios with 4x2, 2x4 or 4x4 MIMO per individual carrier or cell.
Specifications
MIMO fading simulation
Max. number of fading channels depending on MIMO configuration 16 or 32
Number of fading paths per fading channel 20
Supported MIMO modes with 2x R&S®SMW-B14 and R&S®SMW-B74 option 1x4x8, 1x8x4, 2x1x3, 2x1x4, 2x2x3, 2x2x4, 2x3x1, 2x3x2, 2x4x1, 2x4x2, 2x3x3, 2x3x4, 2x4x3, 2x4x4
Number of fading entities (users/cells/carriers) depending on MIMO configuration 1 or 2
Fading bandwidth depending on MIMO configuration 80 MHz or 40 MHz
Correlation Correlation between corresponding fading paths of all TX/RX signal paths can be set in a correlation matrix. For each fading path index, an individual matrix can be set.
Correlation matrix setting individually or with Kronecker assumption (RX and TX antenna correlation with automatic calculation of matrix) or by AoA/AoD parameterization
with R&S®SMW-K72 option SCME/WINNER
Matrix representation (real, imaginary) or (magnitude, phase)
Steering matrix can be set by using the diagonal elements of the correlation matrix
''