La description

Transmitter measurements on LTE signals
Key Facts
  • Quick overview of most important measurement results
  • Advanced analysis of radio frame, subframe, resource blocks, and channels
  • Autodetection of modulation formats
  • EVM <1 %

Brief Description The R&S®FSQ-K104 software enhances the R&S®FSQ and R&S®FSG analyzers for transmitter measurements on 3GPP Long Term Evolution (LTE) base stations. Analysis of MIMO transmitters provides more insight into the performance of the complete base station. The software analyzes the modulation quality, e.g. EVM or I/Q imbalance, of 3GPP EUTRA TDD signals in downlink. When combining two or up to four signal analyzers, these tasks can even be performed on MIMO transmitters. R&S®FSQ-K104 analyzes all LTE modulation types: BPSK, QPSK, 16QAM, and 64QAM. The user can define all bandwidths within a range of 1.4 MHz to 20 MHz.
Features & Benefits Convenient analysis due to automatic detection of modulation formats Each subframe of the signal is analyzed and the QPSK, 16QAM or 64QAM modulation formats plus the length of the cyclic prefix are detected and used to automatically configure the demodulator in R&S®FSQ-K104. The cell identity can also be automatically detected, which reduces the number of settings required by the user to a minimum. Large number of possibilities to determine the performance of the transmitter A summary of the transmitter performance is displayed in a table, providing a quick overview. As the LTE signals are highly complex (e.g. one frame of a 10 MHz signal may contain over 80000 different error vector magnitude results), graphical displays are more suited to quickly locate performance trouble spots in the transmitter. R&S®FSQ-K104 provides an abundance of graphical displays. Quick analysis of transmitter performance by controlling the demodulator After a performance problem has been identified, it is helpful in fault finding to change the settings of the demodulator. The captured data can be analyzed again, which ensures that any sporadic problem will be analyzed in detail as soon as it has been captured by the R&S®FSQ-K104 software. Spectrum emission mask and adjacent channel leakage power measurement included for ease of use R&S®FSQ-K104 includes all the settings to perform the spectral measurements required by the standard. The measurements are automatically configured by means of a few settings. Automate your measurement No matter whether R&S®FSQ-K104 is installed on the instrument or on an external PC, the measurements can be fully automated by using well-known SCPI commands. This makes R&S®FSQ-K104 ideal for use in automated test systems.''