thomas krenz product manager spectrum monitoring systems
TRANSCRIPT
Thomas Krenz
Product Manager
Spectrum Monitoring Systems
5G Spectrum Monitoring
What is 5G? – It’s a paradigm shift
1G~1985
2G1992
3G2001
4G2010
5G2020
Transition
from analog
to digital…
www
www
• Define use case
• Analyze requirements
• Define technology
• Define technology framework
• Find a use case
eMBB
mIoT URLLC
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Use cases: Much more than only Mobile BroadbandScenarios & Requirements
ı Mobile broadband / Dense crowd of users
Mobility, high data rates, high
capacity and partly limited area.
ı Internet of Things – reliable and low latency
Low latency, high reliability,
resilience and security;
user case specific
data rates/capacity.
ı Internet of Things – massive number of devices
The volume of devices and “things”
will create new requirements.
Battery life time expectation years
Very high data rate
Long battery lifetime
Mobility
Massive number of devices
Reliability, resilience, security
Very lowlatency
Very high capacity
Mobile broadband Dense crowd of users
IoT sensor network IoT control network
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A plenty of radio technologies for the wireless Internet of Things
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local area
neighbor area
wide area networks
802.11 a/b/g/n/ac/axBluetooth 5ULE
Bluetooth LEANT/ANT+
ZigBee/ThreadWI-SUN(HAN)
Z-Waveenocean
Endiio
802.11 ah802.11 af
ZigBee (NAN)WI-SUN (FAN)Wireless M-BusDash7802.16s
wHartISA100
IQRF
LoRaWANSigfox
WeigthlessIngenu
TelensaWAVIoT
GPRS/EC-GSMLTE-MNB-IoT5G (uRLLC, mMTC)
All product names, logos, and brands are property of their respective owners
body
NFC
Technological framework
Frequency rangeı Higher frequencies (up to 100 GHz) allow for larger bandwidths, i.e. higher peak data rates and
system capacities
ı Since path loss is significantly higher, highly directional beamforming will be required
ı Oxygen and water absorption (e.g. rain or humidity loss) has to
be taken into account for specific bands.
ı The attenuation of most obstacles is stronger
(e.g. even high foliage loss is present).
ı Specular reflections are more common in mmWave.
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Technological framework
Monitoring equipmentı Appropriate equipment has to be enhanced / developed
Frequency range
Bandwidth
Service specific parameters
ı Wave propagation / micro cells
Mobile and portable equipment
Compact, autonomous systems
Easily deployable
ı Coexistence of 4G (large coverage) and 5G (high data throughput)
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Pre-rollout activities
ı Spectrum clearance and occupancy measurements
Verify that assigned frequency bands are really empty
ı Device conformity
Assure that all devices operate without interference
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Pre-rollout activities
Occupancyı Especially SHF / EHF frequencies often not in main focus of regulator
-> real usage rather unknown
-> situation in adjacent channels rather unknown
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Pre-rollout activities
Occupancy
Frequency band occupancy
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Pre-rollout activities
Occupancy
Frequency channel occupancy
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Pre-rollout activities
Occupancy
Frequency channel occupancy, same channel but different users separated by level range
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Pre-rollout activities
Occupancy
Transmission analysis shows that ~70% of all gaps are < 1min
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Pre-rollout activities
Device conformityı New technologies pose very demanding requirements for all types of equipment
ı Example: Massive MIMO / beamforming systems
Phase shifter tolerances
Thermal effects
Desired beam patterns
Frequency
Bandwitdh
…
ı -> initial problems rather likely
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Pre-rollout activities
Device conformity
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During and after rollout
ı Coverage
ı Interference hunting
ı Classical monitoring
Occupancy
Verification of license compliant operation
ı Quality of service
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During and after rollout
Coverageı How realistic are EHF propagation calculation tools?
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During and after rollout
Interference hunting
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During and after rollout
Verification of license compliant operation
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Automatic positioning on center frequency
Auto
matic
positio
nin
g o
n p
eak le
vel
During and after rollout
Quality of service
Drive test solution
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5G Spectrum Monitoring
Signals Research Group tested
Verizon Wireless’ 28GHz trial network
Source: Signals Ahead, Vol. 14, Number 3 PREVIEW, Feb.20, 2018
using R&S 5GTF
backpack solution
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