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Configurable options include:
• NFramesSweep: number of 10ms frames used in each sweep
• FrameType: frame type and cycling preffix:
- 0: Frame structure type 1 / Normal CP: FDD
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- 3: Frame structure type 2 / Extended CP: TDD
• ModType: modulation type used in data channels (QPSK, 16QAM, 64QAM)
• N_RB_DL: number or resource blocks used for transmission
• nAntennaPorts: number of antenna ports (1, 2 or 4)
• Carrier Frequency (MHz)
• TxOutLvlStart, TxOutLvlSpan, TxOutLvlStep (dBm): Define swept power of transmitted signal
• UL_DL_Config: Uplink/Downlink Configuration for TDD (0, 1, 2, 3, 4, 5 or 6)
• PTS_Format: Pilot Time Slot Format for TDD (0, 1, 2, 3, 4, 5, 6, 7 or 8)
The test bench can be used to monitor:
• The CCDF at the input and output of DUT
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• The TX signal spectrum at the input and output of DUT
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• EVM %rms vs. output power
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• The impact of phase noise on EVM
• The impact of phase/amplitude and DC offset on EVM
• ACPR
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N_RB_DL defines the channel bandwith as defined in the specifications (See Global Definitions for relationship between N_RB_DL and channel BW).
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