deployments and technological evolution · 2020. 9. 1. · to 4g with smooth evolution to 5g with...
TRANSCRIPT
23.8.2018
– Deployments and technological evolution5G Test Network Finland (5GTNF) results seminar | 28.08.2020
Dr. Tech. Jarno Niemelä, Head of Mobile Access Technologies, Elisa
Agenda
• 5G network status
• 5G performance benchmark as
of today
• Technological and architectural
evolution
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January 2014Population coverage 60%
December 2017Population coverage 99%
Elisa 4G network 2014-2017 and 5G cities5G network is expected to expand similarly to 4G
4G network
population
coverage
today
>99.9%
Elisa 5G network > 30 city centers so far and
population coverage > 20 %
Technology transition will always take some time
5G launch
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5G will boost network traffic and complexity further
Private mobile networks
5G cities
and good MBB coverage
Cellular-IoT
Few Gbps top
speeds
Typically > 100
Mbps
10 yearsbattery lifetime
Inexpensive
IoT devices
10-100 Xmore devices
Excellent network
coverage
Millisec level
delays
Very
reliable
Enhanced mobile
broadband (eMBB)
Massive machine
type communications
(mMTC)
Ultrareliable and
low latency
communications
(URLLC)
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Continuous traffic increaseEnhanced MBB and new 5G services will boost the network utilization further
0
200
400
600
800
1 000
1 200
1 400
1 600
1 800
4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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4Q
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TOTAL
5G
LTE
Example of 5G/NR only performanceExpected initial cell capacities around 500 Mbps
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Dow
nlin
k p
hysic
alsh
are
dch
an
ne
l th
rou
gh
pu
t [M
bp
s]
0
200
400
600
800
1000
1200
1400
Median
Q3 (75th percentile)
Q1 (25th percentile)
IQR
Q3 + 1.5*IQR
Q1 - 1.5*IQR
Outliers
Outliers
IQR = Interquartile Range
Background:
- 5G/NR only
at 3.5 GHz
- 100 MHz BW
- No load, no
interference
- Drive tests
- Single site
Static 5G/4G indoor performance measurementsLower frequencies and/or indoor coverage solutions needed
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• Measurement results showed
better user experience for 5G
• However, with roughly 10 dB
higher attenuation on 3.5 GHz
compared to 4G 1800/2100
MHz, 5G performance will• suffer from poorer absolute
coverage levels, and
• gain mostly from EN-DC (4G)
bitrates in poor coverage
locations
• Sub-3GHz are essential for 5G
standalone (SA) coverage
performance
Averages:
5G 625 Mbps
4G 250 Mbps
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Growing amount of radios in the site More radios require clear improvements to energy-efficiency
Sub-3 GHz are essential
to 4G with smooth
evolution to 5G with
DSS and/or pure 5G
3.5 GHz is essentially
the 5G base frequency
with good performance
and limited coverage
properties
26 GHz will provide
several Gbps user
experience, but will be
heavily limited by
coverage
700MHz
800MHz
2600 MHz
2100 MHz
1800 MHz
900MHz
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2.6 GHz TDD provides
good addition to 4G
capacity and smooth
evolution to 5G
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• Virtualized platforms bring
flexibility and efficiency to
radio access
• Open, standardized interfaces
enables easier market entry
for new players
• Increased burden of test and
integrations models
• Additional investments on
fronthaul solutions
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Open RAN work has been ongoing for some timeSmall pilots and live installation already today
Source: ORAN alliance
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Radio access network evolutionBaseband processing to centralized mobile aggregation sites
5G AAU
Legacy radios
Legacy
baseband
Transmission (backhaul)
5G baseband
6x25G 3x10G
1G eth10G eth
Current radio base station
site structure
Towards transport and
core network (10G)
Anten
na
5G AAU
Legacy radios
Legacy
baseband
Fronthaul aggregation (site level)
6x25G
3x10G
1G eth
Towards
transport and
core network
(10G)
Anten
na
Future centralized/virtualized/open
radio bases station structure
Fronthaul
aggregation
(cluster
level)
Centralized
& virtualized
baseband
e.g., 4x100G
Multi-
edge
computing
(MEC)
Evolution towards
centralized, virtualized and
eventually open RAN will
boost technological and
service innovations!
Operator/Far-edge site
Radio siteRadio site
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23.8.2018
Sub 3 GHz
3 to 10 GHz
“Mid-bands”Coverage &
Capacity Layer
“Low-band” Coverage Layer
Above 24 GHz
“High-bands”Super Data Layer
eMBB, URLLC, mMTC
eMBB,
URLLC,
mMTC
eMBB, URLLC, mMTC
Towards higher frequencies
26 GHz
3500 MHz
2600 MHz
2100 MHz
1800 MHz
800 MHz
700 MHz
TDD2600 MHz
600 MHz
40
G
H
z
6000 MHz
~ 1 Gbps
~ 10 Gbps
~ 100 Gbps
1
T
H
z~ 1000 Gbps
26 GHz as first mmW frequency will essentially drive the
change of the network planning paradigm
900 MHz
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5G is already here to continue
mobile data capacity evolution, but
coverage and energy-efficiency
requires further innovations
5G status and evolution
Evolution of radio access towards
more open architecture with open
RAN would boost 5G technological
and service innovations
Reaching higher frequencies requires
paradigm change to mobile network planning
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