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Thread: 5G Wireless Communications, Rohde & Schwarz GmbH & Co KG, Munich, Germany

  1. #41


    Demystifying 5G - Testing a 5G IF transceiver

    Published on Jun 4, 2018

    The video explains the benefits of direct RF sampling for 5G systems. It demonstrates how to test a discrete transceiver for 5G NR based on the latest data converters from Texas Instruments, the DAC38RF82 and the ADC12DJ3200, using the R&S®SMA100B RF and microwave analog signal generator, the R&S®SMW200A vector signal generator and the R&S®FSW signal and spectrum analyzer from Rohde & Schwarz.

    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and waveforms.

  2. #42


    Demystifying 5G - Over the air (OTA) testing for 5G NR in far-field and near-field

    Published on Jul 4, 2018

    This video answers common questions that arise with 5G over the air testing. Where does the far-field start? Is the Fraunhofer distance “the” far-field distance? Do I need to know the antenna location inside the device under test? How can I measure under far-field conditions at near-field distances and remarkably reduce the test setup size?
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and waveforms.

  3. #43


    Demystifying 5G – Creating far-field conditions at short distances for 5G over the air testing

    Published on Jul 6, 2018

    Over-the-air (OTA) testing for 5G NR devices usually results in high measurement distances – particularly for mmWave frequencies and massive MIMO devices. The video discusses various solutions to significantly reduce the measurement distances in order to achieve a compact test setup for mobile device and base station OTA testing. Learn more about software- and hardware-based field transformations for TX and RX OTA measurements as well as important quiet zone parameters and achievable performance.
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and waveforms.

  4. #44


    Demystifying 5G – Repeatable and temperature-based 5G NR OTA testing

    Would you like to learn more about OTA measurement repeatability? And how to combine OTA and temperature measurements? The video discusses various solutions for over-the-air (OTA) testing for 5G NR devices and base stations based on test solutions from Rohde & Schwarz.
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and waveforms.

  5. #45


    Demystifying 5G - 5G NR network measurements at 3.5 GHz

    Published on Dec 3, 2018

    The video demonstrates how to perform 5G NR network measurements at 3.5 GHz. In the example shown, the R&S®SMW200A vector signal generator generates a 5G NR signal. The captured RF measurements are visualized with the R&S®ROMES4 drive test software that supports real-time network analysis, optimization and troubleshooting. R&S®ROMES4 is highly configurability allowing to customize the views according to the user’s needs.
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and waveforms.

  6. #46


    Demystifying the 5G NR physical layer

    Published on Dec 19, 2018

    In December 2017, 3GPP officially released its first set of Release 15 specifications describing the physical layer for the 5G New Radio (NR) technology. Final specifications on the 5G NR protocol stack are still ongoing and will be completed by March 2018 with Abstract Syntax Notification One (ASN.1). Further corrections and clarifications in the physical layer specifications can be expected during this timeframe as 3GPP members start implementation and discover potential areas of improvement. Initial 5G NR deployments will focus on a non-standalone (NSA) mode. In the next step, 3GPP will specify a standalone (SA) mode by mid-2018. This webinar provides an overview of the latest 5G NR physical layer specification, discusses the test challenges related to 5G and demonstrates practical test solutions. The webinar concludes with a look at the challenges involved in SA operation.
    Attendees will learn:
    • 5G NR physical layer details
    • How to test the 5G NR physical layer
    • Challenges of the 5G NR standalone (SA) mode

  7. #47


    Demystifying 5G – Phase noise of clock and LO components in 5G base stations

    Published on Mar 6, 2019

    Massive MIMO and beamforming in 5G base stations impose stringent requirements on ADC and DAC sampling clocks and the LO signals in 5G base stations. The video demonstrates a clock generator and an RF synthesizer from IDT and shows the measurement of the phase noise, contributed by these components.
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and key components.

  8. #48


    Demystifying 5G – Timing alignment and delay adjustment of SYSREF and sampling clock signals

    Published on Mar 6, 2019

    Massive MIMO and beamforming in 5G base stations impose stringent requirements on the clock generator, delivering the SYSREF and sampling clock signals to the ADCs and DACs in the various transceiver chains. The video demonstrates a clock generator from IDT and shows the measurement of time alignment and delay adjustment of SYSREF and sampling clock signals.
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and key components.

  9. #49


    Demystifying 5G – Clock input monitoring, holdover and relocking in 5G base stations

    Published on Mar 6, 2019

    Clock input monitoring and a corresponding holdover mechanism in case of a loss of the external clock signal are key functions in 5G base stations. The video demonstrates an IDT clock generator and shows the measurement of phase transient during a locked-holdover-relocking-locked cycle. A clock signal with a defined phase noise profile is used to emulate the effect of a real-world clock with a non-ideal phase noise performance.
    The demystifying 5G video series discusses main topics related to 5G including requirements, timeline, frequency bands and key components.

  10. #50


    5G is now: Meeting the 5G NR testing challenges

    Published on Aug 12, 2019

    Take a look at where 5G New Radio is today, explore the unique challenges for test and measurement and discover innovative solutions with Rohde & Schwarz.

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