La description

Key Facts The R&S®SMU-K69 LTE closed-loop BS test option enables the test engineer to generate dynamically changing LTE test signals as required to perform HARQ feedback and uplink timing adjustment tests in line with the LTE base station conformance test specification 36.141 (chapter 8). The R&S®SMU-K69 option extends the R&S®SMU-K55 LTE option by:
  • Realtime response of the simulated UE to HARQ feedback commands (ACK/NACK) from the base station (= eNB)
  • Realtime response of the simulated UE to timing adjustment commands from the base station (= eNB)
The R&S®SMU200A vector signal generator is a unique one-box solution for LTE closed-loop base station tests. The R&S®SMU200A combines dual LTE baseband signal generation, multipath fading and AWGN simulation, dual RF signal generation as well as realtime response to base station feedback for HARQ and uplink timing adjustment in a single instrument (additional options required).
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