Rohde & Schwarz SMW-K144 User manual

R&S®SMW-K144
5G New Radio
User Manual
User Manual
Version 06
1178801302
(;ÜÞ=2)

This document describes the following software options:
●R&S®SMW-K144
1423.8608.02
This manual describes firmware version FW 4.60.092.xx and later of the R&S®SMW200A.
© 2019 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Fax: [phone]
Email: [email protected]
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.
1178.8013.02 | Version 06 | R&S®SMW-K144
The following abbreviations are used throughout this manual: R&S®SMW200A is abbreviated as R&S SMW

Contents
R&S®SMW-K144
3User Manual 1178.8013.02 ─ 06
Contents
1 Preface.................................................................................................... 7
1.1 About this Manual......................................................................................................... 7
1.2 Documentation Overview............................................................................................. 7
1.2.1 Getting Started Manual................................................................................................... 8
1.2.2 User Manuals and Help...................................................................................................8
1.2.3 Tutorials...........................................................................................................................8
1.2.4 Service Manual............................................................................................................... 8
1.2.5 Instrument Security Procedures......................................................................................8
1.2.6 Basic Safety Instructions.................................................................................................9
1.2.7 Data Sheets and Brochures............................................................................................ 9
1.2.8 Release Notes and Open Source Acknowledgment (OSA)............................................ 9
1.2.9 Application Notes, Application Cards, White Papers, etc................................................9
2 Welcome to the 5G New Radio Option...............................................10
2.1 Accessing the 5G New Radio Dialog.........................................................................11
2.2 Scope............................................................................................................................11
2.3 Notes on Screenshots................................................................................................ 11
3 About the 5G New Radio Option.........................................................12
3.1 Required Options........................................................................................................ 12
3.2 5G NR Numerology..................................................................................................... 13
3.3 Multiple Access Schemes.......................................................................................... 13
3.4 Frame Structure, Slots and Slot Formats................................................................. 14
3.5 Resource Blocks and Resource Grid........................................................................14
3.6 Transmission Bandwidths TxBWs............................................................................ 15
3.7 Synchronization Signals and SS/PBCH Block......................................................... 17
3.8 Carrier Bandwidth Part (BWP)................................................................................... 19
3.9 5G NR Channels and Signals Overview....................................................................20
4 Find Out the Implemented 3GPP Specification.................................21
5 5G New Radio Configuration and Settings........................................22
5.1 General Settings..........................................................................................................22
5.2 Node Settings.............................................................................................................. 28

Contents
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4User Manual 1178.8013.02 ─ 06
5.2.1 Scheduling.................................................................................................................... 29
5.2.2 Carriers Settings........................................................................................................... 30
5.2.3 Transmission Bandwidth (TxBW) Settings.................................................................... 33
5.2.4 SS/PBCH Settings........................................................................................................ 35
5.2.5 Dummy REs Settings.................................................................................................... 41
5.2.6 Carrier-Mapping Settings.............................................................................................. 43
5.2.7 PBCH Settings.............................................................................................................. 44
5.3 Users/BWPs Settings..................................................................................................49
5.3.1 General Settings........................................................................................................... 49
5.3.2 Properties Settings........................................................................................................50
5.3.3 DL/UL BWPs Settings................................................................................................... 51
5.3.4 DL BWP Configuration Settings.................................................................................... 56
5.3.4.1 User, Carrier, BWP Settings..........................................................................................56
5.3.4.2 PDSCH Settings............................................................................................................57
5.3.4.3 ZP CSI-RS Settings...................................................................................................... 63
5.3.4.4 NZP CSI-RS Settings....................................................................................................65
5.3.5 UL BWP Configuration Settings.................................................................................... 70
5.4 Scheduling Settings....................................................................................................81
5.5 PDSCH/PUSCH Settings.............................................................................................86
5.5.1 General Settings........................................................................................................... 88
5.5.2 TxScheme Settings....................................................................................................... 89
5.5.3 DMRS Settings..............................................................................................................91
5.5.4 Channel Coding Settings.............................................................................................. 92
5.5.5 UCI Settings.................................................................................................................. 94
5.5.6 PTRS Settings...............................................................................................................95
5.5.7 Antenna Ports............................................................................................................... 97
5.6 CORESET Settings....................................................................................................100
5.6.1 General Settings......................................................................................................... 100
5.6.2 Payload Settings......................................................................................................... 104
5.7 PUCCH Settings........................................................................................................ 117
5.7.1 General Settings..........................................................................................................118
5.7.2 Payload Settings......................................................................................................... 120
5.8 PRACH Settings........................................................................................................ 121

Contents
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5User Manual 1178.8013.02 ─ 06
6 Signal Control and Signal Characteristics...................................... 124
6.1 Trigger Settings.........................................................................................................124
6.2 Marker Settings......................................................................................................... 130
6.3 Clock Settings........................................................................................................... 132
6.4 Local and Global Connector Settings..................................................................... 133
6.5 Output Settings......................................................................................................... 133
6.6 Time Domain Windowing Settings.......................................................................... 136
6.7 Adjusting the Signal Power......................................................................................137
6.7.1 Power Settings............................................................................................................ 138
7 Observing Current Allocations On the Time Plan...........................144
8 Remote-Control Commands............................................................. 146
8.1 Programming Examples........................................................................................... 147
8.2 General Commands.................................................................................................. 163
8.3 Carrier Commands....................................................................................................166
8.4 TxBW Commands..................................................................................................... 169
8.5 SS/PBCH Commands................................................................................................172
8.6 Dummy Resource Elements Commands................................................................ 179
8.7 Carrier Mapping Commands.................................................................................... 182
8.8 User Commands........................................................................................................183
8.9 DL/UL BWP Commands............................................................................................185
8.10 BWP Configuration Commands...............................................................................188
8.10.1 PDSCH Commands.................................................................................................... 188
8.10.2 ZP and NZP CSI-RS Commands................................................................................195
8.10.3 PUCCH Commands.................................................................................................... 202
8.10.4 FRC Commands......................................................................................................... 203
8.10.5 PUSCH Commands.................................................................................................... 206
8.10.6 PUSCH UCI Commands............................................................................................. 210
8.10.7 SRS Commands......................................................................................................... 212
8.11 Scheduling Commands............................................................................................ 212
8.12 PDSCH/PUSCH Commands..................................................................................... 219
8.13 CORESET Commands.............................................................................................. 230
8.14 PUCCH Commands...................................................................................................249
8.15 PRACH Commands...................................................................................................253

Contents
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6User Manual 1178.8013.02 ─ 06
8.16 Output Commands....................................................................................................255
8.17 Trigger Commands................................................................................................... 261
8.18 Marker Commands....................................................................................................266
8.19 Clock Commands......................................................................................................268
Glossary: Abbreviations....................................................................269
Glossary: 5G NR 3GPP Specifications, Documents with Further
Information......................................................................................... 271
List of Commands..............................................................................272
Index....................................................................................................284

Preface
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7User Manual 1178.8013.02 ─ 06
1 Preface
1.1 About this Manual
This user manual provides all the information specific to the 5G New Radio option.
All general instrument functions and settings common to all applications and operating
modes are described in the main R&S SMW user manual.
The main focus in this manual is on the provided settings and the tasks required to
generate a signal. The following topics are included:
●Welcome to the 5G New Radio option
Introduction to and getting familiar with the option
●About the 5G New Radio option
Background information on basic terms and principles in the context of the signal
generation
●5G New Radio Configuration and Settings
A concise description of all functions and settings available to configure signal gen-
eration with their corresponding remote control command
●Remote Control Commands
Remote commands required to configure and perform signal generation in a
remote environment, sorted by tasks
(Commands required to set up the instrument or to perform common tasks on the
instrument are provided in the main R&S SMW user manual)
Programming examples demonstrate the use of many commands and can usually
be executed directly for test purposes
●List of remote commands
Alphabetical list of all remote commands described in the manual
●Index
●Abbreviations
●List of documents and reference information
1.2 Documentation Overview
This section provides an overview of the R&S SMW user documentation. Unless speci-
fied otherwise, you find the documents on the R&S SMW product page at:
www.rohde-schwarz.com/manual/smw200a
Documentation Overview

Preface
R&S®SMW-K144
8User Manual 1178.8013.02 ─ 06
1.2.1 Getting Started Manual
Introduces the R&S SMW and describes how to set up and start working with the prod-
uct. Includes basic operations, typical measurement examples, and general informa-
tion, e.g. safety instructions, etc. A printed version is delivered with the instrument.
1.2.2 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 SMW is not included.
The contents of the user manuals are available as help in the R&S SMW. 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.
1.2.3 Tutorials
The R&S SMW provides interactive examples and demonstrations on operating the
instrument in form of tutorials. A set of tutorials is available directly on the instrument.
1.2.4 Service Manual
Describes the performance test for checking the rated specifications, module replace-
ment and repair, firmware update, troubleshooting and fault elimination, and contains
mechanical drawings and spare part lists.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS, https://gloris.rohde-schwarz.com).
1.2.5 Instrument Security Procedures
Deals with security issues when working with the R&S SMW in secure areas. It is avail-
able for download on the Internet.
Documentation Overview

Preface
R&S®SMW-K144
9User Manual 1178.8013.02 ─ 06
1.2.6 Basic Safety Instructions
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
1.2.7 Data Sheets and Brochures
The data sheet contains the technical specifications of the R&S SMW. 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.
See www.rohde-schwarz.com/brochure-datasheet/smw200a
1.2.8 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 open source acknowledgment document provides verbatim license texts of the
used open source software.
See www.rohde-schwarz.com/firmware/smw200a
1.2.9 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/smw200a and www.rohde-schwarz.com/
manual/smw200a
Documentation Overview

Welcome to the 5G New Radio Option
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10User Manual 1178.8013.02 ─ 06
2 Welcome to the 5G New Radio Option
The R&S SMW-K144 is a firmware application that adds functionality to generate sig-
nals in accordance with the 3GPP standard 5G New Radio.
Preamble
All supported features are in line with 3GPP Release 15; the following official 3GPP
specifications are implemented:
●3GPP TS 38.211, Version 15.4.0
●3GPP TS 38.212, Version 15.4.0
●3GPP TS 38.213, Version 15.4.0
●3GPP TS 38.214, Version 15.4.0
The R&S SMW-K144 key features
The R&S SMW 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 supported
PDSCH, PDCCH and PUSCH incl. DMRS
●Support of downlink and uplink DCI content inside CORESET;
Supported are DCI formats 0_0, 0_1, 1_0, 1_1 and custom
●Automatic PDSCH scheduling from DCI
●All modulation schemes supported
●Support of two codewords for PDSCH
●PUSCH/PUCCH spatial multiplexing
●Configurable multilayer transmissions for PDSCH and PUSCH, incl. USCH channel
coding and antenna ports
●Support of FRCs and TMs
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 SMW user manual. The latest version is available at:
www.rohde-schwarz.com/manual/SMW200A
Installation
You can find detailed installation instructions in the delivery of the option or in the
R&S SMW service manual.

Welcome to the 5G New Radio Option
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11User Manual 1178.8013.02 ─ 06
To play back a signal from a waveform file created by the simulation software
R&S WinIQSIM2, the corresponding R&S WinIQSIM2 digital standard option must be
installed.
2.1 Accessing the 5G New Radio Dialog
To open the dialog with 5G New Radio settings
► In the block diagram of the R&S SMW, 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".
2.2 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 storing 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 SMW user manual.
2.3 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
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12User Manual 1178.8013.02 ─ 06
3 About the 5G New Radio Option
The implementation of the option 5G New Radio R&S SMW-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 3-1.
Table 3-1: Main air interface parameters
Parameter Sub-6 GHz
f ≤ 6 GHz
Frequency range FR1*
mmWave
f > 6 GHz
Frequency range FR2*
Frequency bands** 3.3 GHz to 3.8 GHz
4.4 GHz to 6 GHz
24 GHz to 29 GHz
27 GHz to 43.5 GHz
Carrier aggregation ≤ 16 carriers
Initially 1
≤ 16 carriers
Channel bandwidth 5, 10, 15, 20, 25, 30, 40, 50,
60, 70, 80, 90 MHz and 100
MHz
50, 100, 200 MHz and 400 MHz
Subcarrier spacing (SCS) 15 kHz, 30 kHz and 60 kHz 60 kHz and 120 kHz
Modulation schemes DL: up to 256QAM
UL: up to 256QAM, incl. pi/2
BPSK for DFTs
256QAM
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/UL: CP-OFDMA
Duplexing mode TDD
FDD
TDD
*) Throughout this description, the designations are used interchangeably.
**) Frequency bands as defined by the 3GPP Rel. 15 specification group TS 38.xxx.
You can however select also any other frequency within the frequency range your
R&S SMW supports (see Chapter 3.1, "Required Options", on page 12).
3.1 Required Options
The basic equipment layout for generating 5G New Radio signals includes the options:
●Standard or wideband baseband generator (R&S SMW-B10/-B9)
●Baseband main module (R&S SMW-B13) or wideband baseband main module
(R&S SMW-B13XT)
Required Options

About the 5G New Radio Option
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13User Manual 1178.8013.02 ─ 06
●Option 5G New Radio (R&S SMW-K144)
●Frequency option (R&S SMW-B10x)
To play back a signal from a waveform file created by the simulation software
R&S WinIQSIM2, the corresponding R&S WinIQSIM2 digital standard option must be
installed.
For more information, see data sheet.
3.2 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 3-1.
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 3-2: Supported combinations of SCS and CP per frequency range
μSCS,
kHz
(Δf)
Max.
channel
band-
width,
MHz
Nsymbolslot Nslotframes Nsub-
frameslot
Symbol
duration
μs
Nor-
mal
cyclic
prefix
(NCP)
Exten-
ded
cyclic
prefix
(ECP)
Sup-
por-
ted
for
data
Sup-
ported
for
syn-
chroni-
zation
FR1 FR2
0 15 50 14 10 1 66.67 x - x x x -
1 30 100 14 20 2 33.33 x - x x x -
2 60 100 (FR1)
200 (FR2)
14 (NCP)
12 (ECP)
40 4 16.67 x x x - x x
3 120 400 14 80 8 8.33 x - x x - x
4 240 - 14 160 16 4.17 x - - x - x
3.3 Multiple Access Schemes
5G NR supports two channel access methods for uplink signals, CP-OFDM and DFT-s-
OFDM (see Table 3-1). 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.
Multiple Access Schemes

About the 5G New Radio Option
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14User Manual 1178.8013.02 ─ 06
Figure 3-1: Signal processing depending on multiple access scheme
In this implementation, you can define per PUSCh which of the two access schemes is
used.
3.4 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.
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 3-4.
Because the frame and 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 3-2.
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.
3.5 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
Resource Blocks and Resource Grid

About the 5G New Radio Option
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15User Manual 1178.8013.02 ─ 06
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 3-2 and Figure 3-3.
●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 3.6, "Transmission Bandwidths TxBWs", on page 15.
●Physical resource blocks (PRB)
The term PRB describes the RBs inside the bandwidth parts (BWP). PRBs are
numbered relative to the beginning of the bandwidth part.
See Carrier Bandwidth Part (BWP) and Figure 5-1.
3.6 Transmission Bandwidths TxBWs
As listed in Table 3-2, there are different numerologies (that is different combinations of
subcarrier spacing SCS and cyclic prefix CP) supported for each deployment and
channel bandwidth combination. The different SCSs results in transmission bandwidths
TxBWs, which span different frequency ranges and according to TS 38.104 use differ-
ent number of resource blocks NRB. The start of the TxBW is signaled relative to the
Reference point A and is numerology-specific.
To achieve a common alignment between the different TxBWs within a carrier, the
3GPP specification defines the following rules:
●Alignment is achieved, if the center of the first subcarrier (SC#0) of an RB is
aligned to the center of the SC#0 of the RBs of all numerologies with a smaller μ.
●The TxBWs are centered on the carrier center, that is around the center of the
"Channel Bandwidth" for the corresponding carrier.
●If not applicable, the TxBWs can be shifted with ±6 subcarriers relative to the car-
rier center, where for each TxBWs the corresponding SCS applies.
Transmission Bandwidths TxBWs

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16User Manual 1178.8013.02 ─ 06
Figure 3-2: Transmission bandwidth (example)
Carrier = Channel bandwidth = 5 MHz
RB = Resource blocks
SCS = Subcarrier spacing
TxBWs = Transmission bandwidth
TxBWs#1 = SCS 15 kHz, usable resource blocks USB = "N_RB = 25"; TxBWs is not centered on the
carrier center, a frequency shift with k0u = -6 subcarriers is applied
TxBWs#2 = SCS 30 kHz, usable resource blocks USB = "N_RB = 11"; TxBWs is centered on the carrier
center ("k0μ = 0")
k0μ= Number of subcarriers the TxBW is shifted related to the carrier center, see k0u
ΔRB = Usable RB to common RBs, see TxBW Offset
Transmission Bandwidths TxBWs

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17User Manual 1178.8013.02 ─ 06
1 = Aligned centers of the first subcarrier (SC#0) of resource blocks
Point A = Common reference point for all numerologies and TxBWs; does not have to be within the
carrier bandwidth. Point A is the center of subcarrier#0 of the CRB#0
Carrier center = Center frequency of the carrier
Δf = Offset between the carrier center frequency and the reference point A, see Point A to Car-
rier Center.
From all possible TxBWs for a specific channel bandwidth, the base station decides
which TxBWs to use. The base station/network signals the position of the used TxBWs
to the users as function of the following:
●The position of the Reference point A, that is common to all numerologies.
●The frequency offset ΔRB between the usable resource blocks of the TxBWs and
the Reference point A, see TxBW Offset.
●The used frequency shift k0μ = {-6, 0, 6}, see k0u.
3.7 Synchronization Signals and SS/PBCH Block
The 3GPP specifies two synchronization signals (SS), the primary synchronization sig-
nal (PSS) and the secondary synchronization signal (SSS). Together with the physical
broadcast channel (PBCH), they are bundled in a synchronization signal block (SS/
PBCH block). PSS/SSS are used for radio frame synchronization and detection of the
physical layer cell ID. The location of the synchronization signal is variable.
The PBCH carries general system information. It is polar-coded and QPSK modulated.
The PBCH symbols carry its own DMRS, which position depends on the physical layer
cell ID.
An SS/PBCH block is transmitted on a fixed schedule. Each half-frame contains of
either 4, 8 or 64 SS/PBCH blocks, depending on the subcarrier spacing (SCS). The
SS/PBCH block is transmitted twice in a slot, if that slot carries the synchronization sig-
nal.
Synchronization Signals and SS/PBCH Block

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18User Manual 1178.8013.02 ─ 06
Figure 3-3: Location of synchronization signals in a succession of several slots (Case A - 15 kHz
SCS, f < 3 GHz)
PSS/SSS = Primary/secondary synchronization signals
PBCH = Physical broadcast channel
SS/PBCH block = SS and PBCH are always transmitted together in a block
SS/PBCH burst
set
= A group of 4, 8 or 64 SS/PBCH blocks, depending on the SCS (in this example, burst
set = 4 blocks)
Frame = 10 ms = 10 slots
1 slot = 1 subframe = 1 ms
SC = Subcarrier
Start SS/PBCH
symbol
= {2, 8} + 14n, where n = 0,1; Start symbols = 2, 8, 16 and 22
RB Offset = Defines the SS/PBCH allocation position in the frequency (see RB Offset/RB Offset (15
kHz SCS)/RB Offset (60 kHz SCS)); within an RB, the allocation can be further shifted
(see SC Offset/SC Offset (15 kHz SCS)/SC Offset (60 kHz SCS))
Periodicity = Defines how often the burst set is repeated (in this example, periodicity = 10 ms; the
SS/PBCH burst set is repeated every frame), see Burst Set Periodicity
1st URB = First usable resource block (URB), that is the first RB within the TxBW, see Figure 3-2
Carrier center = Center frequency of the cell
Δf = Offset between the center frequency of SS/PBCH block and the carrier center fre-
quency
Synchronization Signals and SS/PBCH Block

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The SSs are allocated on predefined symbols but the allocated resource blocks and
subcarriers are user-defined. The TS 38.213 specifies the number of and the start of
the symbols depending on the used SCS and frequency range, see Figure 3-3. In
3GPP, these different start positions of the SS/PBCH blocks are referred as case A to
case E.
3.8 Carrier Bandwidth Part (BWP)
In 5G NR, the bandwidth used for the communication with a specific user (UE) is typi-
cally smaller than the channel bandwidth. These user-specific bandwidths are man-
aged by the different-sized, so called (carrier) bandwidth parts (BWP). Each of BWP
uses its own numerology and thus can use different SCS, symbol duration and CP
length (see Table 3-2).
Using BWPs with different bandwidths allows flexible resource allocation, for example,
for support of UE with reduced bandwidth capabilities or supporting non-contiguous
spectrum. Bandwidth parts can overlap, in which case UEs share the resource ele-
ments.
Figure 3-4: 5G NR numerology and BWP [1]
A BWP is a contiguous set of physical resource blocks that have the same subcarrier
spacing and thus numerology. UEs can be configured with up to 4 BWPs in DL and UL,
but only one can be active at a time. UEs are not expected to receive and transmit out-
side its active BWP.
Carrier Bandwidth Part (BWP)

About the 5G New Radio Option
R&S®SMW-K144
20User Manual 1178.8013.02 ─ 06
3.9 5G NR Channels and Signals Overview
Channels:
●DL: PBCH, PDCCH (CORESET), PDSCH
●UL: PRACH, PUCCH, PUSCH
Signals:
●DL: PSS/SSS, CSI-RS, DMRS (for PBCH, PDCCH, PDSCH), TRS, PTRS
●UL: DMRS (for PUCCH, PUSCH), PTRS, SRS
The following channels and signals are supported in the current firmware version:
●PSS/SSS, PBCH, PDCCH (CORESET), PDSCH, PUSCH, PUCCH; PBCH incl.
MIB, PDSCH, PDCCH and PUSCH incl. DMRS, PTRS
Related settings:
●Chapter 5.2.7, "PBCH Settings", on page 44
●Chapter 5.3.4.3, "ZP CSI-RS Settings", on page 63 and Chapter 5.3.4.4, "NZP
CSI-RS Settings", on page 65
●"PTRS Config ..." on page 59 and Chapter 5.5.6, "PTRS Settings", on page 95
●Chapter 5.3.4.2, "PDSCH Settings", on page 57
●"PUSCH settings" on page 75 and "PUSCH UCI settings" on page 78
●Chapter 5.5, "PDSCH/PUSCH Settings", on page 86
●Chapter 5.6, "CORESET Settings", on page 100
●"PUCCH settings" on page 71 and Chapter 5.7, "PUCCH Settings", on page 117
●Chapter 5.8, "PRACH Settings", on page 121
5G NR Channels and Signals Overview