WELCOME TO MNT 5G SEMINAR TOUR US
ROHDE & SCHWARZ MOBILE NETWORK TESTING
Arnd Sibila
Technology Marketing
Rohde & Schwarz
AGENDA
Mar 2019 Evolving Technologies Overview2
Time Topic
08:30 Registration and Continental Breakfast
09:00 Welcome and logistics
09:10 5G Technology Introduction
10:30 Coffee Break
10:45 Spectrum Clearance in a 5G Environment
11:15 Challenges of 5G site testing
12:00 Lunch provided by Rohde & Schwarz
13:00 Data Analytics for Benchmarking & Optimization
14:00 5G Real-World Use Case
14:30 Coffee Break
14:45 Ensuring QoE in 5G
15:30 Closing Remarks/Adjourn
Rohde & Schwarz
INTRODUCTIONARND SIBILA
► Master’s degree in Electrical Engineering (Communication Technology, RF Technology),
Ruhr-University of Bochum, Germany
► Technology Marketing Manager for Wireless Technologies at Rohde & Schwarz
since 2012 (led the Infrastructure Global Key Account Manager group in 2014 and 2015)
► Technology Marketing in the Mobile Network Testing market segment since January 2016
► 20+ years in Siemens Communications and Nokia Siemens Networks (technical and
management roles in PM, PLM, System Architecture, CTO, BD, Portfolio Management,
Product Qualification) strong focus on new technologies (LTE-Advanced, LTE,
WCDMA/HSPA, WiMAX, etc.)
Mar 2019 Evolving Technologies Overview3
5G NR TECHNOLOGY INTRODUCTION
Rohde & Schwarz Mobile Network Testing
Arnd Sibila
Technology Marketing
Rohde & Schwarz
CONTENTS
Nov 2019 5G MNT technology introduction5
ı 5G market drivers and key challenges
ı 5G use cases
ı 5G NR technology and standardization
ı 5G network test solutions
ı Conclusion
Rohde & Schwarz
THE STATUS OF COMMERCIAL AND LIMITED 5G NR AVAILABILITY
Nov 20196
Source: Ookla 5G map
5G rollouts in cities
across the globe
Weekly update from
verified public sources
and Ookla data
Korea and US might not
be properly covered
Status: December 2nd, 2019
5G MNT technology introduction
Rohde & Schwarz
SOUTH KOREA – 5G STATUS
Nov 2019 5G MNT technology introduction7
SKT:
► SK Telecom (#1 in Korea) reached 1.5 million 5G subscriber by end of September 2019
► SKT’s 5G subscribers represent nearly 44% of Korea’s 5G subscriber base
► SK Telecom targets 2 million 5G subs by end of 2019 (7 million by end of 2020)
KT:
► KT (#2 in Korea with 31% market share) targets 1.5 million 5G subscribers by end of 2019
► 85% of 5G customers signed up for the top-tier unlimited plans ( higher ARPU)
► First year-on-year increase in revenue in 7 quarters due to rapid adoption of 5G services
► Launched commercial 5G services April 2019
LG Uplus
► LG Uplus (#3 in South Korea) reported 540,000 5G subscribers end of August
► 50,000 5G base stations today, target is 80,000 by end of 2019 (90% of population)
Spectrum: 280 MHz in 3.5 GHz band and 2,400 MHz in 28 GHz band
Source: RCR Wireless News, November 11, 2019
Rohde & Schwarz
MOBILE DATA TRAFFIC GROWTH: IT IS HAPPENING!
Nov 2019 5G MNT technology introduction8
ı Absolute amount of data: 3-fold in 3 years!
ı Operators have to invest for higher capacity
Ref: Cisco VNI mobile, 2017
68%
Data traffic growth: 68%
from Q3 2018 to Q3 2019
Voice does not include VoIP. Traffic does not include DVB-H, Wi-Fi, or Mobile WiMAX.
Reality surpassed
forecast!
Rohde & Schwarz9
5G IS ALREADY GLOBALLY PRESENTCOMMERCIAL SERVICES ARE LAUNCHED
Source: GSA report: Evolution from LTE to 5G: Global Market Status, October 2019
►328 operators in 109 countries are active in 5G (launches, demos, trials)
►50 operators in 27 countries announced 3GPP-compatible 5G
service launches (62 operators in 34 countries activated 5G
sites within their live commercial networks)
► Just the October 2019 snapshot:
figures are growing constantly
Nov 2019 5G MNT technology introduction
Rohde & Schwarz
4G TODAY AND 5G TECHNOLOGY FORECAST
GSA Reports (October ‘19):
► 777 commercially launched LTE / LTE-
Advanced networks in 228 countries
(36 networks with Gbps speeds)
► 328 operators in 109 countries
are active in 5G (launches, demos, trials)
► 50 operators in 27 countries announced
3GPP-compatible 5G service launches
(62 operators in 34 countries activated
commercial 5G sites)
Nov 2019 5G MNT technology introduction10
Source: GSA Evolution from LTE to 5G report, October 2019
GSA Press Release November 22nd, 2019
Source: Ericsson Mobility Report Nov 2019
Rohde & Schwarz
FREQUENCY TRENDS FOR 5G
Nov 2019 5G MNT technology introduction11
NR frequency range 1
reserved numbers 65-256
Downlink Uplink
… … …
n77 3.3 – 4.2 GHz 3.3 – 4.2 GHz
n78 3.3 – 3.8 GHz 3.3 – 3.8 GHz
n79 4.4 – 5.0 GHz 4.4 – 5.0 GHz
… … …
NR frequency range 2
Reserved numbers 257-512
Downlink Uplink
n257 26.5 – 29.5 GHz 26.5 – 29.5 GHz
n258 24.25 – 27.5 GHz 24.25 – 27.5 GHz
n259 39.5-43.5 GHz 39.5-43.5 GHz
n260 37 – 40 GHz 37 – 40 GHz
Rohde & Schwarz
KEY CHALLENGES RELATED TO 5G NR RAN
Nov 2019 5G MNT technology introduction12
New spectrum
ı Even 3.5 GHz is different from today’s frequencies
ı What about coverage?
ı Spectrum clearance?
Beamforming for Synch.
and Broadcast Signals
ı How does beamforming work?
Flexibility of air interface
and gNB configuration
ı Bandwidth: 5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 MHz (FR1)50, 100, 200, 400 MHz (FR2)
ı Subcarrier Spacing:15, 30, 60 kHz (FR1)60, 120, (240) kHz (FR2)
ı Mapping onto antenna ports: single beam / multi beam sweeping
New technology elements drive the need for (and complexity of)
5G NR network measurements
Rohde & Schwarz
CONTENTS
Nov 2019 5G MNT technology introduction13
ı 5G market drivers and key challenges
ı 5G use cases
ı 5G NR technology and standardization
ı 5G network test solutions
ı Conclusion
Rohde & Schwarz
REVIEW OF 5G USE CASESeMBB REMAINS PRIORITY 1 BUT …
Nov 2019 5G MNT technology introduction14
eMBB – the known playground
ı Established ecosystem (operators, manufacturers,
certification of devices)
ı Evolution from existing technologies and revolutionary
additions (cm- / mm-wave)
ı It’s all about data (speed and capacity)
ı Realizing and facing the challenges of cm-wave
spectrum and OTA testing; 3.5GHz is important!
URLLC
ı A significantly enhanced and
diverse ecosystem (operators (?),
manufacturers, verticals,
certification not existing (yet))
ı Principal support with high SCS
and self-contained slots
ı It’s all about reliability and security
(data and capacity)
massive Machine
Type Communication
Ultra reliable &
low latency
communication
enhanced Mobile
Broadband
eMBB
mMTC URLLC
Massive IoTı A diverse ecosystem
(operators, manufacturers,
local authorities, certification
only for some technologies)
ı Mix of technologies
(GSM, Lora, Zigbee, WLAN,
Bluetooth, Cat M, NB-IoT,…)
ı It’s all about cost efficiency
and massive connectivity
ı 3GPP: No NR based solution;
will be addressed by evolving
LTE-M (eMTC) and NB-IoT
Rohde & Schwarz
CONTENTS
Nov 2019 5G MNT technology introduction15
ı 5G market drivers and key challenges
ı 5G use cases
ı 5G NR technology and standardization
ı 5G network test solutions
ı Conclusion
Rohde & Schwarz
201920182017 2020 2021
3GPP RAN NR STANDARDIZATION OVERVIEWREL-15 … REL-17 TIMELINE
16
Rel-15
Nov 2019
Rel-15 NSA Option 3
SA Option 2 & 5
Late-Drop
for Option 4, 7
RAN #80
June 2018
RAN #84
June 2019
Rel-16 Study-Item / Work-Item phase
RAN #87
March 2020
RAN #88
June 2020
Rel-17
Rel-17 Kick-Off
Workshop
RAN #84
June 2019
RAN #86
Dec 2019 June 2021
E-mail discussion
of work areas
Approval of
Rel-17 Study-Items /
Work-Items
Study-Item / Work-Item phase
Rel-15 core specs
completed
Rel-16 core specifications completed
Rel-17
core
specs
compl’d
Source: RP-190563
RAN #86
Dec 2019
Rel-15 test specifications completed
RAN #80
June 2018
PHY specs frozen ASN.1 specs frozen
Sep 2021
PHY specs frozen
ASN.1 specs frozen
RAN #85
Sep 2019
5G MNT technology introduction
Rohde & Schwarz
5G NEW RADIO (NR) OFFERS A FLEXIBLE AIR INTERFACE SUMMARY OF KEY PARAMETERS
Parameter FR1 FR2
Carrier aggregation Up to 16 carriers
Bandwidth per carrier 5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 90, 100MHz 50, 100, 200, 400 MHz
Subcarrier spacing 15, 30, 60 kHz 60, 120, 240 (not for data) kHz
Max. number of subcarriers 3300 (FFT4096 mandatory)
Modulation scheme QPSK, 16QAM, 64QAM, 256QAM; uplink also supports π/2-BPSK (only DFT-s-OFDM)
Radio frame length 10ms
Subframe duration 1 ms (alignment at symbol boundaries every 1 ms)
MIMO scheme Max. 2 codewords mapped to max 8 layers in downlink and to max 4 layers in uplink
Duplex mode TDD, FDD TDD
Access scheme DL: CP-OFDM; UL: CP-OFDM, DFT-s-OFDM
Nov 2019 5G MNT technology introduction17
Rohde & Schwarz
ARCHITECTURE OPTIONSOPTION 3 IS PRIORITY 1 IN 3GPP, FOLLOWED BY OPTION 2
Nov 2019 5G MNT technology introduction18
EPC
eNB
(LTE)
gNB
(5G)
MME SGW
Option 3:DC EN: E-UTRA-NR
Data
Control
Option 2: Standalone
NGC
AMF UPF
gNBeNB is the
Master Node
MME = Mobility Management Entity
S-GW = Serving Gateway
AMF = Access and Mobility Management Function
UPF = User Plane Function
gNB is the
Secondary Node
Rohde & Schwarz
MAXIMUM 5G NR DATA RATE PER LAYER
Frequency
Range
SCS Bandwidth DL UL Efficiency DL Efficiency UL
FR1 15 kHz 50 MHz 288.9 Mbps 309.1 Mbps 5.78 bps/Hz 6.18 bps/Hz
FR1 30 kHz 100 MHz 584.3 Mbps 625 Mbps 5.84 bps/Hz 6.25 bps/Hz
FR1 60 kHz 100 MHz 577.8 Mbps 618.1 Mbps 5.78 bps/Hz 6.18 bps/Hz
FR2 60 kHz 200 MHz 1.08 Gbps 1.18 Gbps 5.40 bps/Hz 5.90 bps/Hz
FR2 120 kHz 400 MHz 2.15 Gbps 2.37 Gbps 5.38 bps/Hz 5.93 bps/Hz
Compare to
LTE
15 kHz 20 MHz 100 Mbps 100 Mbps 5.00 bps/Hz 5.00 bps/Hz
Nov 2019 5G MNT technology introduction19
Rohde & Schwarz
NR PHYSICAL LAYER DETAILSCYCLIC PREFIX (CP) STRUCTURE IDENTICAL IN EACH SUBFRAME
Nov 2019 5G MNT technology introduction20
CP
insertionIFFT
0 … 7 … 13
1 2 3 10
f = 2
15
[kHz]
Slots /
frame
Slots /
subframe
0 15 10 1
1 30 20 2
2 60 40 4
3 120 80 8
4 240 160 16
Symbol length = 66.67 µs
1 subframe = 1 ms
= 1 Slot
10 slots per frame
0 … 28 … 55
Symbol length = 16,67µs
1 2 3 404
15 kHz subcarrier spacing (LTE like)
1 subframe = 1 ms
= 4 slots
40 slots per frame
60 kHz subcarrier spacing
Rohde & Schwarz
HOW CAN A UE IDENTIFY A 5G CARRIER?
Nov 2019 5G MNT technology introduction21
Carrier BW
BWP 1 BWP 2 BWP 3
SS
B
SS
B
SSB = SS/PBCH block
First action of UE looking for 5G cell: search for Synchronization Signals
ı One SSB is always transmitted the only Always-On signal in 5G NR!
ı The 5G NR UE uses the SSB for Synchronization
System information (MIB/SIB)
Cell and Beam quality measurements
frequency
BWP: BandWidth Part:
contiguous subset of physical resource
blocks within the overall carrier bandwidth
of a certain frequency spectrum
Rohde & Schwarz
BANDWIDTH PARTS (BWP)
Motivation: Provide a flexible method to assign various numerologies to a device, thereby
adapting to different QoS requirements.
Nov 2019 5G MNT technology introduction22
Up to four BWPs in DL/UL per UE:
ı Single BWP at a given time
(active BWP)
ı No reception of PDSCH or
PDCCH outside DL BWP
ı No Transmission of PUSCH
or PUCCH outside UL BWP
ı BWPs can be switched by RRC
(slow), DCI (fast) or based on
timers
Rohde & Schwarz
SS/PBCH BLOCKS = SSB
► Time domain:
SSB consists of 4 OFDM symbols, where
PSS, SSS and PBCH with associated
DM-RS occupy different symbols
► Frequency domain:
SSB consists of 240 contiguous
subcarriers
► Like in LTE the Cell ID can be determined
from the used PSS/SSS sequences
Nov 201923
Synchronization Signal Block = SSB
PSS: Primary Synchronization Signal SSS: Secondary Synchronization Signal
PBCH: Physical Broadcast Channel DM-RS: DeModulation Reference Signal
239
. . . . . .
192
. . . . .
182
. . . . .
56
. . . . .
47
. . . . .
9
5
1
0
DM-RS
5G MNT technology introduction
Rohde & Schwarz
…
SSBOCCURRENCE IN THE FRAME: CASE A, B AND C
Nov 2019 5G MNT technology introduction24
…
…
…
…
…
5ms
3.6MHz
5ms
7.2MHz
Case A (15kHz)
f 3GHz (L=4)
3 f 6GHz (L=8)
Case B (30kHz)
f 3GHz (L=4)
3 f 6GHz (L=8)
Case C (30kHz)
f 3GHz (L=4)
3 f 6GHz (L=8)
0 1 2 3 4 5 6 7 Block index 0…Lmax-1
Rohde & Schwarz
SSB AND DIFFERENT BEAMS – „BEAMFORMING“
► Demodulation of the PBCH determines the SSB index and
distinguishes between the periodically broadcasted SSBs
► Each SSB uses different DM-RS embedded in the PBCH (FR1: PBCH in 3 OFDM symbols,
in each symbol PBCH DMRS sequence is initialized differently 23 = 8 options)
► Example: Case A with subcarrier spacing of 15 kHz and 8 SSB indices
Nov 2019 5G MNT technology introduction25
…
Case A (15 kHz)
3 f 6 GHz (L=8)
0 1 2 3 4 5 6 7 Block index 0…Lmax-1
5 ms
Different beams / SSB indices
Beamforming of synchronization signals and broadcast information via 5G NR SSBs
Rohde & Schwarz
SSB – IN SINGLE BEAM OR MULTI BEAM CONFIGURATION
► SSB index is used to separate SSB
transmission on different beams
(encoded in the MIB)
► Mapping of antenna ports and
physical beams to the SSB index can
differ between infrastructure suppliers
► SS Bursts can also be repeated
(periodicity is given in MIB)
Nov 2019 5G MNT technology introduction26
Single Beam
Multi Beam sweeping
… …
… …
SSB
0
SSB
1
SSB
2
SSB
3
SSB
m… SSB
0
SSB
1
SSB
2
SSB
3
SSB
m……
SS burst 0 SS burst 1
time
5G NR network measurements need to cope with high flexibility and configurability
Rohde & Schwarz
5G NR: SIMPLE BEAMFORMING
Nov 2019 5G MNT technology introduction27
Same PCI, different SSB indices
gNB uses SSBs to be mapped on
„static“ beams. PDSCH & PUSCH will
also follow SSB beam concept
Rohde & Schwarz
5G NR: ENHANCED (UE SPECIFIC) BEAMFORMING
Nov 2019 5G MNT technology introduction28
Same PCI, different SSB indices
+ UE specific CSI-RS for
beamforming support
gNB uses SSBs to be mapped on
„static“ beams.
CRI feedback
PDSCH & PUSCH will be on UE
specific beams. CSI-RS and reporting
needed to support beam adjustment
Rohde & Schwarz
5G NR AND NEXTGEN CORE: NETWORK SLICING
Nov 2019 5G MNT technology introduction29
source: Nokia
Network Slice: a network customized to provide an optimized solution for a specific
market scenario which demands specific requirements with end to end scope
Rohde & Schwarz
CONTENTS
Nov 2019 5G MNT technology introduction30
ı 5G market drivers and key challenges
ı 5G use cases
ı 5G NR technology and standardization
ı 5G network test solutions
ı Conclusion
Rohde & Schwarz
R&S TEST SOLUTIONS TO DEPLOY 5G NR NETWORKS
Nov 2019 5G MNT technology introduction31
R&S®ROMES4: 5G NR Software for network engineering, analysis and
optimization
R&S®TSME6 R&S®TSMA6
5G NR network measurement solution
Backpack for mmwaveShoulder bag
Passive measurements Active measurements
5G Router
QualiPoc Android ready for 5G
5G smartphones
Spectr. Clearance / Interfer. Hunting Data Analytics
R&S®FPH 31GHz
R&S®MNT100&PR200 R&S®MobileLocator
R&S®TSMA6 R&S®FSH
SmartAnalytics Scene
SmartAnalytics
Scene - NPS
TDD gated trigger
Site Acceptance
R&S®TSMA6QualiPoc Android
(ready for 5G)
5G NR
Serving Cell
5G NR
Uplink
5G NR
Downlink
5G NR Cell
History
5G NR Cell
Quality
RSRP,
RSRQ
Tx Power
DL Thp
Rohde & Schwarz
DIFFERENCE BETWEEN SCANNER AND MOBILE PHONE MEASUREMENTS
Nov 2019 5G MNT technology introduction32
Measurement device
Measurement modePassive: just receiving,
no SIM required
Active: SIM-based connection to
its operator
Measurement accuracy Accurate (+/- 1dB) +/- 6dB
Measured cellsAll receivable cells (all operators,
all configured frequency bands)
Connected cell and neighbors
(limited), own operator
Measurement speed / frequency + -
Use case Reference RF measurement Real world, comparability
Solution: Scanner controlled
by QualiPoc Android
Rohde & Schwarz
DIFFERENCE BETWEEN SCANNER AND MOBILE PHONE: THE “dB” LESSON
Nov 2019 5G MNT technology introduction33
“1 dB is nothing, 2 dB is a lot!”
The decibel (symbol: dB) is a unit of measurement used to express the ratio of one
value of a power quantity to another on a logarithmic scale. It is called the power level.
𝐿𝑝 = 10 log10𝑃𝑎𝑃𝑏
𝑑𝐵
Ratio in dB Ratio in abs. power
1 1.26
2 1.6
3 2
6 4
10 10
20 100
30 1000
(Wikipedia.com)
PA = 4 mW
PH = 16 mW
PL = 1 mW
± 6 dB
Rohde & Schwarz
DIFFERENCE BETWEEN SCANNER AND MOBILE PHONE: MEASUREMENT SPEED
Nov 2019 5G MNT technology introduction34
LTE RSRP measurements of a smartphone:
Serving cell
+ neighbor cells sporadically
(from own operator, 1 band)
LTE RSRP measurements of a scanner:
All cells
(from all operators, 1 band)
Just 10 cells were configured here. Serving Cell
9 measurements in 25 seconds
60 seconds
60 seconds
Rohde & Schwarz
5G NR NETWORK MEASUREMENT SOLUTION
Nov 2019 5G MNT technology introduction35
ROMES4: 5G NR Software for network
engineering, analysis and optimization
(running on laptop or NUC PC in TSMA6)
For comfortable
walk tests
Industry’s first commercially available 5G NR network measurement
solution launched by Rohde & Schwarz Mobile Network Testing
TSME6: Ultra-compact network scanner
TSMA6: Autonomous network scanner
plus downconverter for 28 / 39 GHz frequency bands
Rohde & Schwarz
5GNR „BEAMFORMING“ FOR SYNCHRONIZATION SIGNALSAND BROADCAST CHANNEL INFORMATIONExample: Case A with subcarrier spacing of 15 kHz (3.6 MHz bandwidth) and 8 SSB indices
► Each block uses different DM-RS embedded in the PBCH
Scanner TSME6 / TSMA6 performs measurements per beam
Scanner TSME6 / TSMA6 and ROMES support 5GNR beamforming from day 1
Nov 2019 5G MNT technology introduction36
…
Case A (15kHz)
3 f 6GHz (L=8)0 1 2 3 4 5 6 7 Block index 0…Lmax-1
5ms
Rohde & Schwarz
BANDWIDTH OF NETWORK SCANNER (THE 100 MHz QUESTION)
Nov 2019 5G MNT technology introduction37
20 MHz – the most efficient choice for RF frontend
ı 5G NR offers higher bandwidths, but: ı All SSB below 6 GHz fit into 20 MHz bandwidth
ı There is no other always-on signal in 5G NR downlink than the SSB
ı Spectrum measurements over the whole frequency range (spectrum scan,
Automatic Channel Detection) are done with 20 MHz frontend since years
ı SSB measurement in mmWave frequencies (120 and 240 kHz subcarrier spacing)
with one 20 MHz scanner frontend using fast frequency hopping
ı Better noise figure than 100 MHz frontend
ı Better receiver sensitivity
ı Best approach for multi-technology measurements (2G, 3G, 4G, 5G)
All important 5G NR network measurements are done using a 20 MHz scanner frontend
€ $
Rohde & Schwarz
5GNR SSB
HOW TO FIND THE SSB EASILY? 5G NR SCANNER – AUTOMATIC CHANNEL DETECTION (ACD)Often the SSB frequency is
not exactly known before
executing 5G NR
measurements.
The 5G NR ACD automatically finds the SSB by detecting:
ı SS-Ref frequency of 5G NR cell-defining SSBs following GSCN raster (3GPP compliant)
ı Cell-defining SSBs which are apart from the GSCN channel raster
ı The transmission case (number of SSBs) is determined by the SS-Ref
Nov 2019 5G MNT technology introduction38
Rohde & Schwarz
SCANNER-BASED 5G NR MEASUREMENTS: MULTI BEAM EXAMPLE IN ROMES
Nov 2019 5G MNT technology introduction39
Cell Color by PCI
Beam Color by SSB Index
… …
Rohde & Schwarz
MAIN TAKE-AWAY –COVERAGE
► Expected UE sensitivity:
~ -120 dBm (SS-RSRP)
► Suburban area (3.7 GHz)
► Surprisingly good SSB
coverage
► Static SSB beamforming
allows for long radio range
Nov 2019 5G MNT technology introduction40
-125dBm SS-RSRP
~ 6.5km distance
gNodeB
-110dBm SS-RSRP
-90dBm SS-RSRP
-100dBm SS-RSRP
Operators can try to reuse
site grid ?
Rohde & Schwarz
QUESTIONS: CAN WE MAP THE SSB INDICES ON BEAMS? HOW DOES BEAMFORMING WORK?
► First approach:
Assumption: Each SSB index can be
mapped to a certain beam
► How to analyze that?
Use the ROMES4 map feature and
display the strongest SSB index on a map
Nov 2019 5G MNT technology introduction41
Beam switch PCI switch
Heat map
(e.g. SS-RSRP)
Strongest SSB index is shown
PCI
Rohde & Schwarz
SSB / BEAMFORMINGVERIFICATION
Nov 2019 5G MNT technology introduction42
Same PCI, different SSB indices
► Best received SSB index /
beam visualized on the map
► Surprisingly good match with
horizontal “micro sectors”
(SSB beam indices)
► 3.7 GHz, sub-urban
environment
gNodeB
Rohde & Schwarz
MILLIMETER WAVE NETWORKS - BEAMFORMING AT ITS BEST
43
63
4 5 6 7 12 13 14 15 20 21 22 23 28 29 30 31
Closer to gNB
Less gain, wider beam
e.g. 25° downtiltMore gain, narrow beams
e.g. 10° downtilt
Can go down to a few meters
► Massive number of antenna elements („massive MIMO“) max. 64 SSB beams
► Ultra precise beamforming with flexible beam width for FR2
► SW controlled phased array antenna
Nov 2019
High gain, pencil beam
e.g. 0° downtilt
5G MNT technology introduction
Rohde & Schwarz
PCI / CELL COVERAGE EVALUATION IN THE FIELD
► Focus on PCI
45 Nov 2019 5G MNT technology introduction
Rohde & Schwarz
„Massive beamforming“
can be evaluated
in the field
BEAMFORMING EVALUATION IN THE FIELD (28 GHz)
► One PCI
► Focus on best beam
(SSB index)
46 Nov 2019
For more info please
visit demo 1 and 2
5G MNT technology introduction
Rohde & Schwarz
FIRST UE-BASED 5G NR MEASUREMENTS
Nov 2019 5G MNT technology introduction47
ROMES4 measuring on 5G mobile device
https://www.linkedin.com/feed/update/urn:li:activity:6488431089424564224
5G NR
Serving Cell
5G NR
Uplink
5G NR
Downlink
5G NR Cell
History
5G NR Cell
Quality
RSRP,
RSRQ
Tx Power
DL Thp
Rohde & Schwarz
FIRST UE-BASED 5G NR MEASUREMENTS ► NR Serving cell information:
NR DL ARFCN
PCI
SSB Index ► L1 RSRP / RSRQ
► L2 PDSCH, PDCP, PUSCH information
► LTE-NR EN-DC L3 signaling
► Application layer info
Nov 2019 5G MNT technology introduction48
5G NR measurement in
QualiPoc Android *)
5G NR RRC Layer 3
signaling
*) Beta Release 19.0
Rohde & Schwarz
BLOCK DIAGRAM: MM-WAVE/SUB 6 GHz MEASUREMENT SETUPINCLUDING TSME6 / TSMA6, SIMULTANEOUS MEASUREMENTS
Nov 2019 5G MNT technology introduction49
Sub 6 / IFReal-timeswitching
TSME30DC
5GNR
mm-waveRF
LTE
sub-6 GHzRF
PC including
R&S®ROMES4
Drive Test Software
HW control
Downconverter
Local oscillator
R&S®TSME6
Ultra Compact
Drive Test Scanner
Downconverter
IF
TSME30DC
5GNR
Local oscillator
RF
LTE RF
HW control
High performance setup
Standard performance setup
R&S®TSME6
R&S®TSME6
Alternative with R&S®TSMA6
and tablet for control
Rohde & Schwarz
CONTENTS
Nov 2019 5G MNT technology introduction50
ı 5G market drivers and key challenges
ı 5G use cases
ı 5G NR technology and standardization
ı 5G network test solutions
ı Conclusion
Rohde & Schwarz
CONCLUSION
Nov 2019 5G MNT technology introduction51
Rohde & Schwarz MNT is committed to support the industry with network test
solutions from early trial phase to network optimization and benchmarking
Commercial 5G NR network measurement solution available by Rohde & Schwarz
5G NR network measurements need to cope with high flexibility, configurability and
complexity of new technology elements
Verification of coverage and SSB beamforming in many networks with R&S
5G NR commercial rollout running now – many pre-commercial trials!
Commercial 5G NR smartphones available on the market
https://www.rohde-schwarz.com/MNT-5G
https://blog.mobile-network-testing.com/