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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions, symbols and abbreviations
  • 4 Frequency bands and channel arrangement
  • 5 General test conditions and declarations
  • 6 Output power
  • 7 Frequency stability
  • 8 Out of band gain
  • 9 Unwanted emission
  • 10 Modulation accuracy
  • 11 Input Intermodulation
  • 12 Output Intermodulation
  • 13 Adjacent Channel Rejection Ratio (ACRR)
  • 14 Timing Accuracy
  • A.1 Maximum output power
  • A.2 Frequency stability
  • A.3 Out of band gain
  • A.4 Unwanted emission: Spectrum emission mask
  • A.5 Unwanted emission: Spurious emission
  • A.6 Modulation Accuracy: Error Vector Magnitude
  • A.7 Modulation Accuracy: Peak Code Domain Error
  • A.8 Input inter modulation
  • A.9 Output Intermodulation
  • A.10 Timing Accuracy

A.7 Modulation Accuracy: Peak Code Domain Error

25.1533GPPRelease 17TSUTRA repeater conformance testing (LCR TDD)

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

LCR TDD Signal Generator

Spectrum analyzer

Repeater under test

Figure A.7: Measuring system set-up for modulation accuracy: peak code domain error.

Note that a repeater is a bi-directional device. The signal generator may need protection.