Rohde&Schwarz SMM100A User manual

Type
User manual
R&S®SMM-K14x/-K17x
3GPP 5G NR Signal Generation
User Manual
1179322102
Version 08
(;ÝPE2)
This document describes the following software options:
R&S®SMM-K144 5G NR Release 15 (1441.1730.02)
R&S®SMM-K148 5G NR Release 16 (1441.2166.02)
R&S®SMM-K170 5G NR Sidelink (1441.1076.02)
R&S®SMM-K171 5G NR Release 17 (1441.1018.02)
This manual describes firmware version FW 5.30.047.xx and later of the R&S®SMM100A.
© 2023 Rohde & Schwarz
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: +49 89 41 29 - 0
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1179.3221.02 | Version 08 | R&S®SMM-K14x/-K17x
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®SMM100A is indicated as
R&S SMM. Linux® is abbreviated as Linux.
Contents
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3User Manual 1179.3221.02 ─ 08
Contents
1 Welcome to the 5G New Radio option................................................11
1.1 Accessing the 5G New Radio dialog......................................................................... 13
1.2 What's new...................................................................................................................13
1.3 Documentation overview............................................................................................13
1.3.1 Getting started manual..................................................................................................13
1.3.2 User manuals and help................................................................................................. 14
1.3.3 Service manual............................................................................................................. 14
1.3.4 Instrument security procedures.....................................................................................14
1.3.5 Printed safety instructions............................................................................................. 14
1.3.6 Data sheets and brochures........................................................................................... 14
1.3.7 Release notes and open source acknowledgment (OSA)............................................ 15
1.3.8 Application notes, application cards, white papers, etc.................................................15
1.3.9 Videos........................................................................................................................... 15
1.4 Scope........................................................................................................................... 16
1.5 Notes on screenshots.................................................................................................16
2 About the 5G New Radio option......................................................... 17
2.1 Required options.........................................................................................................18
2.2 5G NR numerology......................................................................................................18
2.3 Multiple accesses schemes....................................................................................... 19
2.4 Frame structure, slots and slot formats................................................................... 19
2.5 Resource blocks and resource grid.......................................................................... 20
2.6 Transmission bandwidths TxBWs.............................................................................21
2.7 Synchronization signals and SS/PBCH block.......................................................... 23
2.8 Carrier bandwidth part (BWP)....................................................................................25
2.9 Carrier aggregation.....................................................................................................26
2.10 Antenna port mapping................................................................................................27
2.11 5G NR channels and signals overview..................................................................... 28
2.12 Overlap handling.........................................................................................................29
3 Find out the implemented 3GPP specification..................................31
4 5G NR quick settings...........................................................................32
Contents
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4.1 General settings.......................................................................................................... 32
4.2 Frame format............................................................................................................... 37
5 5G New Radio configuration and settings.........................................40
5.1 General settings.......................................................................................................... 40
5.2 Node settings.............................................................................................................. 49
5.2.1 Scheduling.................................................................................................................... 49
5.2.2 Carriers settings............................................................................................................ 51
5.2.3 System information settings.......................................................................................... 57
5.2.4 Timing & Phase Settings............................................................................................... 60
5.2.5 Transmission bandwidth (TxBW) settings..................................................................... 63
5.2.6 LTE-CRS coexistence settings......................................................................................65
5.2.7 SS/PBCH settings......................................................................................................... 68
5.2.8 S-SS/PSBCH settings................................................................................................... 75
5.2.9 PRS settings................................................................................................................. 78
5.2.10 Dummy REs settings.....................................................................................................84
5.2.11 OCNG settings..............................................................................................................86
5.2.12 PBCH settings...............................................................................................................87
5.2.13 PSBCH settings............................................................................................................ 92
5.3 Users / BWPs settings................................................................................................ 93
5.3.1 General settings............................................................................................................ 93
5.3.2 DL and UL user properties settings...............................................................................95
5.3.3 SL user properties settings......................................................................................... 105
5.3.4 DL/UL BWPs settings..................................................................................................107
5.3.5 SL BWPs settings........................................................................................................111
5.3.6 DL BWP configuration settings....................................................................................113
5.3.7 UL BWP configuration settings................................................................................... 155
5.3.8 SL BWP configuration settings....................................................................................192
5.4 Scheduling settings.................................................................................................. 198
5.5 PDSCH and PUSCH settings....................................................................................212
5.5.1 General settings.......................................................................................................... 213
5.5.2 TxScheme settings......................................................................................................219
5.5.3 DMRS settings............................................................................................................ 222
5.5.4 Channel coding settings..............................................................................................226
Contents
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5.5.5 UCI settings.................................................................................................................228
5.5.6 PTRS settings............................................................................................................. 230
5.5.7 PTRS settings with enabled transform precoding....................................................... 233
5.5.8 Antenna ports..............................................................................................................235
5.5.9 Info.............................................................................................................................. 236
5.6 CORESET settings.................................................................................................... 237
5.6.1 General settings.......................................................................................................... 237
5.6.2 Payload settings..........................................................................................................242
5.6.3 Info.............................................................................................................................. 268
5.7 CSI-RS settings (scheduling table)......................................................................... 269
5.7.1 General CSI-RS settings.............................................................................................270
5.7.2 Antenna port configuration for CSI-RS........................................................................272
5.8 RIM-RS setting (scheduling table)...........................................................................272
5.9 PUCCH settings.........................................................................................................273
5.9.1 General settings.......................................................................................................... 274
5.9.2 Payload settings..........................................................................................................278
5.9.3 Info.............................................................................................................................. 279
5.10 PRACH settings.........................................................................................................280
5.11 SRS settings (scheduling table).............................................................................. 282
5.11.1 General SRS settings..................................................................................................283
5.11.2 Antenna port settings for SRS.....................................................................................286
5.12 PSSCH and PSCCH settings.................................................................................... 288
5.12.1 General PSSCH and PSCCH settings........................................................................ 288
5.12.2 SCI1A settings............................................................................................................ 290
5.12.3 SCI2A settings............................................................................................................ 292
5.12.4 SCI2B settings............................................................................................................ 293
5.12.5 TxScheme settings for PSSCH and PSCCH.............................................................. 294
5.12.6 DMRS settings for PSSCH..........................................................................................294
5.12.7 Channel coding settings..............................................................................................295
5.12.8 Antenna ports settings for PSSCH and PSCCH......................................................... 297
5.12.9 Info layer for PSSCH and PSCCH.............................................................................. 298
6 Signal control and signal characteristics........................................299
6.1 Trigger settings......................................................................................................... 299
Contents
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6.2 Marker settings..........................................................................................................304
6.3 TDD UL/DL marker mode..........................................................................................307
6.4 Clock settings............................................................................................................310
6.5 Local and global connectors settings.....................................................................311
6.6 Output settings..........................................................................................................311
6.7 Time domain windowing settings............................................................................315
6.8 Adjusting the signal power...................................................................................... 317
6.8.1 Effects of the power mode...........................................................................................318
6.8.2 Power settings.............................................................................................................323
6.9 Crest factor reduction settings................................................................................325
7 Observing current allocations on the time plan..............................328
8 Performing BS tests according to TS 38.141 specifications......... 331
8.1 Introduction to BS conformance testing................................................................ 331
8.2 Required options.......................................................................................................332
8.3 Supported test cases................................................................................................332
8.3.1 Generic structure of the description of the implemented test cases........................... 333
8.4 Exemplary test setups.............................................................................................. 333
8.4.1 Exemplary test setups for conducted tests (TS 38.141-1).......................................... 334
8.4.2 Exemplary test setups for radiated (OTA) tests (TS 38.141-2)................................... 334
8.5 General considerations............................................................................................ 335
8.5.1 General considerations for radiated (OTA) tests.........................................................336
8.6 User interface............................................................................................................ 338
8.6.1 General settings.......................................................................................................... 339
8.6.2 Test case settings........................................................................................................340
8.6.3 OTA declaration...........................................................................................................342
8.6.4 Instrument settings......................................................................................................343
8.6.5 Wanted signal settings................................................................................................ 345
8.6.6 Frequency allocation settings......................................................................................350
8.6.7 Interfering signal settings............................................................................................ 351
8.6.8 Moving UE settings..................................................................................................... 354
8.6.9 Stationary UE settings.................................................................................................356
8.6.10 AWGN settings............................................................................................................357
8.6.11 Information.................................................................................................................. 357
Contents
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7User Manual 1179.3221.02 ─ 08
8.7 Conducted transmitter characteristics (TS 38.141-1, chapter 6).......................... 358
8.7.1 Prior considerations.................................................................................................... 358
8.7.2 General workflow for carrying out a transmitter test....................................................359
8.7.3 Test case 6.7: transmitter intermodulation.................................................................. 360
8.8 Conducted receiver characteristics (TS 38.141-1, chapter 7)............................... 361
8.8.1 Prior considerations.................................................................................................... 362
8.8.2 General workflow for carrying out a receiver test........................................................363
8.8.3 Test case 7.2: reference sensitivity level.....................................................................364
8.8.4 Test case 7.3: dynamic range..................................................................................... 366
8.9 Radiated transmitter characteristics (TS 38.141-2, chapter 6)..............................368
8.9.1 Prior considerations.................................................................................................... 369
8.9.2 General workflow for carrying out a radiated transmitter test......................................369
8.9.3 Test case 6.8: OTA transmitter intermodulation.......................................................... 370
8.10 Radiated receiver characteristics (TS 38.141-2, chapter 7)...................................371
8.10.1 Prior considerations.................................................................................................... 372
8.10.2 General workflow for carrying out a receiver test........................................................375
8.10.3 Test case 7.2: OTA sensitivity..................................................................................... 376
8.10.4 Test case 7.3: OTA reference sensitivity level.............................................................377
8.10.5 Test case 7.4: OTA dynamic range............................................................................. 379
8.10.6 Test case 7.6: OTA out-of-band blocking.................................................................... 380
9 Generating user plane data...............................................................383
9.1 Required options.......................................................................................................383
9.2 File format and folder structure...............................................................................383
10 Remote-control commands...............................................................385
10.1 Programming examples........................................................................................... 386
10.2 General commands...................................................................................................416
10.3 FRC wizard commands.............................................................................................423
10.4 Quick settings command......................................................................................... 428
10.5 Carrier commands.................................................................................................... 436
10.6 Copy carrier commands........................................................................................... 442
10.7 System information commands...............................................................................444
10.8 TxBW commands...................................................................................................... 448
10.9 LTE-CRS coexistence commands........................................................................... 450
Contents
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10.10 SS/PBCH commands................................................................................................ 452
10.11 S-SS/PSBCH configuration commands.................................................................. 464
10.12 PRS commands.........................................................................................................466
10.13 Dummy resource elements commands.................................................................. 472
10.14 OCGN commands..................................................................................................... 475
10.15 DL and UL user properties commands................................................................... 478
10.16 SL user properties commands................................................................................ 494
10.17 DL/UL BWP commands............................................................................................ 496
10.18 SL BWP commands.................................................................................................. 503
10.19 BWP configuration commands................................................................................505
10.19.1 PDSCH commands..................................................................................................... 505
10.19.2 PTRS commands........................................................................................................ 525
10.19.3 RMC commands......................................................................................................... 529
10.19.4 PDCCH commands.....................................................................................................532
10.19.5 DL control information commands.............................................................................. 534
10.19.6 ZP and NZP CSI-RS commands.................................................................................540
10.19.7 Rate match commands............................................................................................... 548
10.19.8 PUCCH commands.....................................................................................................551
10.19.9 FRC commands.......................................................................................................... 553
10.19.10 PUSCH commands..................................................................................................... 559
10.19.11 PUSCH UCI commands..............................................................................................576
10.19.12 SRS commands.......................................................................................................... 578
10.19.13 Bandwidth part configuration for sidelink commands..................................................590
10.20 Scheduling commands.............................................................................................595
10.21 PDSCH and PUSCH scheduling commands...........................................................610
10.21.1 General PDSCH and PUSCH scheduling commands.................................................611
10.21.2 PDSCH and PUSCH Tx scheme commands..............................................................618
10.21.3 PDSCH and PUSCH DMRS commands.....................................................................624
10.21.4 PDSCH and PUSCH channel coding commands....................................................... 630
10.21.5 PUSCH UCI commands..............................................................................................632
10.21.6 PDSCH and PUSCH PTRS commands......................................................................634
10.21.7 PDSCH and PUSCH antenna port configuration commands......................................640
10.22 CORESET scheduling commands...........................................................................641
Contents
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9User Manual 1179.3221.02 ─ 08
10.22.1 General CORESET scheduling commands................................................................ 642
10.22.2 CORESET payload scheduling commands................................................................ 646
10.22.3 DCI field configuration commands.............................................................................. 654
10.23 CSI-RS scheduling commands................................................................................ 693
10.24 RIM-RS scheduling commands............................................................................... 695
10.25 PUCCH scheduling commands............................................................................... 696
10.25.1 General PUCCH scheduling commands.....................................................................696
10.25.2 PUCCH payload scheduling commands..................................................................... 700
10.26 PRACH scheduling commands............................................................................... 702
10.27 SRS scheduling commands.....................................................................................705
10.28 PSSCH / PSCCH scheduling commands................................................................ 711
10.28.1 PSSCH / PSCCH general configuration commands................................................... 711
10.28.2 SCI1A configuration commands..................................................................................713
10.28.3 SCI2A configuration commands..................................................................................717
10.28.4 SCI2B configuration commands..................................................................................719
10.28.5 TxScheme configuration commands...........................................................................720
10.28.6 DMRS configuration commands................................................................................. 721
10.28.7 PSxCH channel coding commands.............................................................................721
10.29 Output commands.................................................................................................... 724
10.30 Trigger commands.................................................................................................... 734
10.31 Marker commands.................................................................................................... 740
10.32 Clock commands...................................................................................................... 747
10.33 Test case wizard remote-control commands..........................................................747
Glossary: Abbreviations....................................................................768
Glossary: 5G NR 3GPP specification references............................770
List of commands.............................................................................. 771
Index....................................................................................................802
Contents
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10User Manual 1179.3221.02 ─ 08
Welcome to the 5G New Radio option
R&S®SMM-K14x/-K17x
11User Manual 1179.3221.02 ─ 08
1 Welcome to the 5G New Radio option
The R&S SMM-K144/-K148 are firmware applications that add functionality to generate
signals in accordance with the 3GPP standard 5G New Radio.
Preamble
All supported features are in line with the official 3GPP specifications (releases 15, 16
and 17). You can check in the user interface to which version of the specification the
firmware currently corresponds to (see Chapter 3, "Find out the implemented 3GPP
specification", on page 31).
The R&S SMM-K144 key features
The R&S SMM-K144 provides 3GPP release 15 features.
The R&S SMM100A simulates signals at the physical channel level. The following list
gives an overview of the functions provided for generating an 5G New Radio signal:
Supports uplink and downlink
Intuitive user interface with graphical display of time plan
PSS/SSS, PBCH (incl. MIB), PDCCH (i.e. CORESET), PDSCH, CSI-RS, PDSCH
PTRS, PUSCH, PUCCH, SRS, PRACH supported
PBCH, PDSCH, PDCCH and PUSCH incl. DMRS
Support of downlink and uplink DCI content inside CORESET;
Automatic PDSCH scheduling from DCI
PDSCH time domain scheduling
Support of two codewords for PDSCH
Support of SRS codebook
PUSCH/PUCCH spatial multiplexing
Configurable multilayer transmissions for PDSCH and PUSCH, incl. USCH channel
coding and antenna ports
Support of FRCs and TMs
All modulation schemes supported
Carrier aggregation, including cross-carrier scheduling
Test case wizard for 3GPP 38.141 test cases
The R&S SMM-K148 key features
The R&S SMM-K148 provides 3GPP release 16 features.
The R&S SMM-K148 requires an R&S SMM-K144.
Release 16 features include:
PRS (positioning reference signals)
Support of the DCI types and their corresponding RNTI types included in the
release 16
Welcome to the 5G New Radio option
R&S®SMM-K14x/-K17x
12User Manual 1179.3221.02 ─ 08
MIB system frame number (SFN) increments independently from the configured
ARB sequence length
Support of up-to 50 users
The R&S SMM-K170 key features
The R&S SMM100A simulates 5G NR sidelink signals at the physical channel level.
Support for PSSCH and PSCCH
Support of S-SS/PSBCH
Support of sidelink bandwidth part configuration, including resource pool configura-
tion
Support of SSCH channel coding
Support of sidelink control information (SCI)
Support of sidelink carrier aggregation
The R&S SMM-K171 key features
The R&S SMM-K171 provides 3GPP release 17 features.
The R&S SMM-K171 requires an R&S SMM-K144 and R&S SMM-K148.
Release 17 features include:
New deployment frequency range (FR2-2, up to 71 GHz).
New channel bandwidths introduced with FR2-2 (800 MHz, 1600 MHz and 2000
MHz).
New subcarrier spacings for various channels (user allocations, SS/PBCH, PRACH
etc.) introduced with FR2-2.
New channel bandwidths introduced with release 17 (35 MHz and 45 MHz).
Support of 1024QAM modulation in FR1.
New operating bands, test models and FRCs introduced with release 17.
This user manual contains a description of the functionality that the application pro-
vides, including remote control operation.
All functions not discussed in this manual are the same as in the base unit and are
described in the R&S SMM100A user manual. The latest version is available at:
www.rohde-schwarz.com/manual/SMM100A
Installation
You can find detailed installation instructions in the delivery of the option or in the
R&S SMM100A service manual.
Welcome to the 5G New Radio option
R&S®SMM-K14x/-K17x
13User Manual 1179.3221.02 ─ 08
1.1 Accessing the 5G New Radio dialog
To open the dialog with 5G New Radio settings
In the block diagram of the R&S SMM100A, select "Baseband > 5G NR".
A dialog box opens that displays the provided general settings.
The signal generation is not started immediately. To start signal generation with the
default settings, select "State > On".
1.2 What's new
This manual describes firmware version FW 5.30.047.xx and later of the
R&S®SMW200A.
For a detailed list of new features, refer to the release notes published with the corre-
sponding firmware version.
Introduction of the FRC wizard.
Possibility to restart the slot index within a frame.
New power mode average active signal.
New filter mode to optimize the EVM.
Support of transport block transmission over multiple non-consecutive slots.
Test models and FRCs: added various release 17 test models and FRCs.
Test case wizard: Test now support power limits defined in 3GPP 38.104
Test case wizard: Information dialog that shows all settings that have been
changed for the selected test case.
1.3 Documentation overview
This section provides an overview of the R&S SMM100A user documentation. Unless
specified otherwise, you find the documents at:
www.rohde-schwarz.com/manual/smm100a
1.3.1 Getting started manual
Introduces the R&S SMM100A and describes how to set up and start working with the
product. Includes basic operations, typical measurement examples, and general infor-
mation, e.g. safety instructions, etc. A printed version is delivered with the instrument.
Documentation overview
Welcome to the 5G New Radio option
R&S®SMM-K14x/-K17x
14User Manual 1179.3221.02 ─ 08
1.3.2 User manuals and help
Separate manuals for the base unit and the software options are provided for down-
load:
Base unit manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control com-
mands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
Software option manual
Contains the description of the specific functions of an option. Basic information on
operating the R&S SMM100A is not included.
The contents of the user manuals are available as help in the R&S SMM100A. The
help offers quick, context-sensitive access to the complete information for the base unit
and the software options.
All user manuals are also available for download or for immediate display on the Inter-
net.
1.3.3 Service manual
Describes the performance test for checking compliance with rated specifications, firm-
ware update, troubleshooting, adjustments, installing options and maintenance.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS):
https://gloris.rohde-schwarz.com
1.3.4 Instrument security procedures
Deals with security issues when working with the R&S SMM100A in secure areas. It is
available for download on the internet.
1.3.5 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with
the product.
1.3.6 Data sheets and brochures
The data sheet contains the technical specifications of the R&S SMM100A. It also lists
the options and their order numbers and optional accessories.
The brochure provides an overview of the instrument and deals with the specific char-
acteristics.
Documentation overview
Welcome to the 5G New Radio option
R&S®SMM-K14x/-K17x
15User Manual 1179.3221.02 ─ 08
See www.rohde-schwarz.com/brochure-datasheet/smm100a
1.3.7 Release notes and open source acknowledgment (OSA)
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation.
The software makes use of several valuable open source software packages. An open-
source acknowledgment document provides verbatim license texts of the used open
source software.
See www.rohde-schwarz.com/firmware/smm100a
1.3.8 Application notes, application cards, white papers, etc.
These documents deal with special applications or background information on particu-
lar topics.
See www.rohde-schwarz.com/application/smm100a
1.3.9 Videos
Find various videos on Rohde & Schwarz products and test and measurement topics
on YouTube: https://www.youtube.com/@RohdeundSchwarz
On the menu bar, search for your product to find related videos.
Figure 1-1: Product search on YouTube
Documentation overview
Welcome to the 5G New Radio option
R&S®SMM-K14x/-K17x
16User Manual 1179.3221.02 ─ 08
1.4 Scope
Tasks (in manual or remote operation) that are also performed in the base unit in the
same way are not described here.
In particular, it includes:
Managing settings and data lists, like saving and loading settings, creating and
accessing data lists, or accessing files in a particular directory.
Information on regular trigger, marker and clock signals and filter settings, if appro-
priate.
General instrument configuration, such as checking the system configuration, con-
figuring networks and remote operation
Using the common status registers
For a description of such tasks, see the R&S SMM100A user manual.
1.5 Notes on screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as many as possible of the provided functions and
possible interdependencies between parameters. The shown values may not represent
realistic usage scenarios.
The screenshots usually show a fully equipped product, that is: with all options instal-
led. Thus, some functions shown in the screenshots may not be available in your par-
ticular product configuration.
Notes on screenshots
About the 5G New Radio option
R&S®SMM-K14x/-K17x
17User Manual 1179.3221.02 ─ 08
2 About the 5G New Radio option
The implementation of the option 5G New Radio R&S SMM-K144 is based on the
3GPP Rel. 15 specification group TS 38.xxx. According to these specifications, the
3GPP defines a great flexibility of the signal on the air interface.
This section is a brief summary of the main air interface parameters, see Table 2-1.
Availability of main air interface parameters
Several main air interface parameters have been upgraded with 3GPP release 16 and
3GPP release 17, in particular the extended frequency deployment ranges, certain
channel bandwidths (for example 35 MHz and 35 MHz) or certain subcarrier spacings
and are therefore only available with the corresponding option (R&S SMM-K148 and
R&S SMM-K171).
If you do not have R&S SMM-K171 and the distinction between FR2-1 and FR2-2, you
only see FR2. All settings that depend on the frequency deployment range are treated
as if they were in FR2-1 in that case.
Table 2-1: Main air interface parameters
Parameter Frequency range FR1* Frequency range FR2*
Frequency bands** 410 MHz to 7.125 GHz
7.125 GHz to 24.250 GHz
FR 2-1: 24.250 GHz to 52.60 GHz
FR 2-2: 52.60 GHz to 71.00 GHz
Carrier aggregation 16 carriers
Initially 1
16 carriers
Channel bandwidth 5, 10, 15, 20, 25, 30, 35, 40,
45, 50, 60, 70, 80, 90 MHz
and 100 MHz
FR 2-1: 50, 100, 200, 400
FR 2-2: 400, 800, 1600, 2000 MHz
Subcarrier spacing (SCS) 15, 30, 60 kHz FR 2-1: 60, 120 kHz
FR 2-2: 120, 480, 960 kHz (depending on
channel bandwidth)
Modulation schemes Up to 1024QAM Up to 1024QAM
MIMO schemes DL: 2x2 and 4x4 MIMO
( 8 layers)
UL: SISO and 2x2 MIMO
( 4 layers)
2 layers:
DL: 2x2 MIMO
UL: SISO and 2x2 MIMO
Multiple access schemes DL: CP-ODFMA
UL: CP-OFDMA and
optionally DFT-s-OFDM
DL: CP-ODFMA
UL: CP-OFDMA and optionally DFT-
s-OFDM
*) Throughout this description, the designations are used interchangeably.
**) Frequency bands as defined by the 3GPP specification group TS 38.104 (currently
release 17). You can however select also any other frequency within the frequency
range your R&S SMM100A supports (see Chapter 2.1, "Required options",
on page 18).
About the 5G New Radio option
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18User Manual 1179.3221.02 ─ 08
2.1 Required options
The basic equipment layout for generating 5G New Radio signals includes the options:
Base unit
Baseband generator (R&S SMM-B9)
Baseband real-time extension (R&S SMM-B520)
Option 5G New Radio (R&S SMM-K144)
Optional, option 5G NR Release 16 (R&S SMM-K148).
Requires R&S SMM-K144.
Optional, option 5G NR Sidelink (R&S SMM-K170).
Optional, option 5G NR Release 17 (R&S SMM-K171).
Requires R&S SMM-K144 and R&S SMM-K148.
You can generate signals via play-back of waveform files at the signal generator. To
create the waveform file using R&S WinIQSIM2, you do not need a specific option.
To play back the waveform file at the signal generator, you have two options:
Install the R&S WinIQSIM2 option of the digital standard, e.g. R&S SMM-K255 for
playing LTE waveforms
If supported, install the real-time option of the digital standard, e.g. R&S SMM-K55
for playing LTE waveforms
For more information, see data sheet.
2.2 5G NR numerology
5G NR signals can be transmitted in several frequency ranges. For each of the fre-
quency range, the 3GPP specifies the allowed subcarrier spacing (SCS) and the sup-
ported cyclic prefix (CP), see Table 2-2.
However, not all combinations of frequency range, SCS and CP are allowed. Moreover,
the 3GPP specification defines the allowed combinations indirectly, as the so called
numerology. A numerology is thus the combination of the SCS and the CP, where the
SCS is defined as follows:
Δf = 15 kHz * 2μ, with μ = 0 to 4.
Table 2-2: Supported combinations of SCS and CP per frequency range
μSCS,
kHz
(Δf)
Max.
channel
band-
width,
MHz
Nsym-
bolslot
Nslotframes Nsub-
frameslot
Symbol
dura-
tion
μs
Nor-
mal
cycli
c
pre-
fix
(NCP
)
Exten-
ded
cyclic
prefix
(ECP)
Sup-
por-
ted
for
data
Sup-
ported
for
syn-
chron-
ization
FR1 FR2-
1
FR2-2
0 15 50 14 10 1 66.67 x - x x x - -
1 30 100 14 20 2 33.33 x - x x x - -
5G NR numerology
About the 5G New Radio option
R&S®SMM-K14x/-K17x
19User Manual 1179.3221.02 ─ 08
μSCS,
kHz
(Δf)
Max.
channel
band-
width,
MHz
Nsym-
bolslot
Nslotframes Nsub-
frameslot
Symbol
dura-
tion
μs
Nor-
mal
cycli
c
pre-
fix
(NCP
)
Exten-
ded
cyclic
prefix
(ECP)
Sup-
por-
ted
for
data
Sup-
ported
for
syn-
chron-
ization
FR1 FR2-
1
FR2-2
2 60 100
(FR1)
200
(FR2-1)
14 (NCP)
12 (ECP)
40 4 16.67 x x x - x x -
3 120 400
100
(FR2-2)
14 80 8 8.33 x - x x - x x
4 240 - 14 160 16 4.17 x - - x - x -
5 480 1600 14 320 32 2.08 x - x x - - x
6 960 2000 14 640 64 1.04 x - x x - - x
2.3 Multiple accesses schemes
5G NR supports two channel access methods for uplink signals, CP-OFDM and DFT-s-
OFDM (see Table 2-1). Depending on the use case, one or the other has advantages
over the other. For DFT-s-OFDM, an additional signal processing stage, transform pre-
coding, is applied. Transform precoding is the term for the digital Fourier transformation
(DFT) used in the 5G NR standard.
Figure 2-1: Signal processing depending on multiple access schemes
In this implementation, you can define per PUSCh which of the two access schemes is
used.
2.4 Frame structure, slots and slot formats
Frame structure
As it is in LTE, the 5G NR frame is 10 ms long; a half-frame lasts 5 ms. Frames consist
of 10 subframes, each of them with a length of 1 ms.
Frame structure, slots and slot formats
About the 5G New Radio option
R&S®SMM-K14x/-K17x
20User Manual 1179.3221.02 ─ 08
Subframes contain a variable number of slots, depending on the subcarrier spacing
(SCS). Moreover, subframes can use different SCS in different bandwidth parts (BWP),
see Figure 2-4.
Because the frame (subframe) lengths are constant but the number of slots and their
lengths varies, the common time boundaries between the different numerologies are
the frames (or the subframes).
Slots and slots formats
The basic transmission unit in 5G NR is the slot. Slots can have different formats; slots
comprise of 14 or 12 OFDM symbols, depending on the used cyclic prefix (CP). Hence,
depending on the used CP, there are different numbers of slots per frame (and sub-
frame) and the CP itself depends on the used numerology, see Table 2-2.
Slots can have different formats, defined by the slot format index (SFI). The SFI is sig-
naled by group common PDCCHs. The slot formats differ in the number of symbols
that can be used for DL (D) and UL (U) transmission. Most of the symbols are usually
used for transmission of user data (payload). Slots can also contain flexible symbols
(x), that can be used for dynamic DL/UL transmission or as a gap for the DL to UL and
vice versa switching.
The slot formats are defined in TS 38.211, table 4.3.2-3.
2.5 Resource blocks and resource grid
Resource grid
The basic granularity in 5G NR resource grid is the resource element (RE), which
consists of one OFDM symbol over one subcarrier and is the same as in LTE. Another
granularity unit is a resource block (RB), which spans 12 subcarriers in frequency
domain.
Resource blocks
The 5G NR specification defines different types of resource blocks:
Common resource blocks (CRB)
The term CRB is typically used when referring to the whole carrier. A CRB grid is
defined for each numerology.
The center of subcarrier #0 of the CRB#0 is referred as Reference point A; it is
signaled relative to SS/PBCH or ARFCN.
See Figure 2-2 and Figure 2-3.
Usable resource blocks (URBs)
The term URB is used to specify the subset of the CRBs of a specific numerology
where transmission is allowed; that is, these RBs are not in the guard bands. The
URBs define the so called transmission bandwidth (TxBW) for the respective
numerology, see Chapter 2.6, "Transmission bandwidths TxBWs", on page 21.
Physical resource blocks (PRB)
Resource blocks and resource grid
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Rohde&Schwarz SMM100A User manual

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