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8/16/2019 5.2. Bdays Arg Personal - Sran Cran 20150903
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1
Confidential
© Nokia 2015
Nokia C-RAN and S-RA
What are these concepts?
Demetrio Rakitin
Head of LTE Sales Development LAT
3-Sep-2015
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2
Confidential
• What is Nokia C-RAN?
min)• What is Nokia S-RAN?
min)
genda
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3
Confidential
Nokia C-RAN
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4 © Nokia Solutions and Networks 2015
• Mobile operators providingbroadband connectivity forlarge concentrations ofpeople within a defined area
• subscribers sharing uniquemoments and generatinglarge amounts of Uplinktraffic in a dense environment
Centralized RAN Drivers & Markets
Attractions
ConcertsStadiums
Carnivals
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5 © Nokia Solutions and Networks 2015
Centralized RAN – Ultra Dense Network Deployment – Stadium Exam
enseR N Introduction100.000 Fans
watch game
at Stadium
10.000 Fans
snapshot goal
and upload to
Social media
10,000 x
1 MB Pictures
10 GB
hits uplink
Target:
clear traffic
in 60 seconds
100 cells
would be
needed in
stadium
UL interf.would
collapse ULperformance
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6 © Nokia Solutions and Networks 2015
Single Cell vs. Multi-cell Coordination CRAN can do it!
Radio1 Radio 2 Radio 3
Radio 4 Radio 5 Radio 6
UEIntra-eNBUL CoMP
Radio1 Radio 2
Radio 4 Radio 5
UE UE
CRAN
MuCCSUE
Radio1 Radio 2 Radio 3
Radio 4 Radio 5 Radio 6
UE
Radio2 Radio3 Radio4
Radio 5 Radio 6 Radio 7
UE
Radio 3 Radio 4 Radio 5
Radio 6 Radio 7 Radio 8
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7 © Nokia Solutions and Networks 2015
Cell 8 Cell 7 Cell 6 Cell 5
6A 6B 4A 4B 3A 2A3B 2B 1A 1B 12A 12B 11A 8A 8B 7A 7B
eNB 3 eNB 2
TTI 1
12Rx Receiver
Cell 4 Cell 3 Cell 2 Cell 1 Cell 12 Cell
5A 5B
Dynamic Selection of Reception Set for fixed UL CoMP Set (1/4)
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8 © Nokia Solutions and Networks 2015
Cell 8 Cell 7 Cell 6 Cell 5
6A 6B 4A 4B 3A 2A3B 2B 1A 1B 12A 12B 11A 8A 8B 7A 7B
eNB 3 eNB 2
TTI 2
12Rx Receiver
Cell 4 Cell 3 Cell 2 Cell 1 Cell 12 Cell
5A 5B
Dynamic Selection of Reception Set for fixed UL CoMP Set (2/4)
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9 © Nokia Solutions and Networks 2015
Cell 8 Cell 7 Cell 6 Cell 5
6A 6B 4A 4B 3A 2A3B 2B 1A 1B 12A 12B 11A 8A 8B 7A 7B
eNB 3 eNB 2
TTI 3
12Rx Receiver
Cell 4 Cell 3 Cell 2 Cell 1 Cell 12 Cell
5A 5B
Dynamic Selection of Reception Set for fixed UL CoMP Set (3/4)
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10 © Nokia Solutions and Networks 2015
Cell 8 Cell 7 Cell 6 Cell 5
6A 6B 4A 4B 3A 2A3B 2B 1A 1B 12A 12B 11A 8A 8B 7A 7B
eNB 3 eNB 2
TTI 4
12Rx Receiver
Cell 4 Cell 3 Cell 2 Cell 1 Cell 12 Cell
5A 5B
Dynamic Selection of Reception Set for fixed UL CoMP Set (4/4)
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11 © Nokia Solutions and Networks 2015
Centralized RAN 1-tier stadium cell layout
Cell 2
(RRH2)
Cell 1
(RRH1)
Cell 3
(RRH3)Cell 6
(RRH 6)
Cell 5
(RRH 5)
UL CoMP set 6 cells
UE
UL/DL serving cell
1 - T i e r
Reception set: up to 4 selected c
(8 best RX’s with 8-way IRC)
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12 © Nokia Solutions and Networks 2015
Nokia CRAN live Stadium Results
CRAN Efficiency
gainsUL volume per PRB
150%
UL UE powerconsumption decrease
Up to 20%
Up to 33%
UL Throughputimprovement under highload conditions
2.53x
Helsi
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13 © Nokia Solutions and Networks 2015
Nokia Centralized RANTurning interference into useful traffic
Base StatBase Station
Average cell
UL capacity
gain
2x to
3x
Average cell
edge UL
capacity gain
10x
Improved
downlink
capacity
5%
UE power
consumption
decrease
33%
Centralized RAN links together multiple base stations and turns the
interference into useful traffic, especially in dense traffic areas with
a large number of smart devices
How
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14 © Nokia Solutions and Networks 2015
Nokia S-RAN
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15 © Nokia Solutions and Networks 2015
Why is SRAN a topic today?
Exponential traffic growth
LTE: new spectrum, many bands
GSM and WCDMA will stay for s
SRAN:
• flexibility in spectrum use and in
protection
• longer life for GSM and WCDM
running costs while going for LTE
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16 © Nokia Solutions and Networks 2015
Can we make multi-radio networks simpler to operate?
4G
Baseband
2G
cabinet
900
MHz
2G
cabine
t1800
MHz
Radio Head
2100 MHz
Radio Head900 MHz
Radio Head
1800 MHz
Radio Head
800 MHz
3G
Baseband
X
X
X
X
Typical Multi-RAT site today
Cell site routers, switches,
demarcation devicesTDM/SDH
IP/Eth
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17 © Nokia Solutions and Networks 2014
Before: Classical RF sharing
Introduction
Before & after System Module sharing
SRAN introduced (SBT
For internal use
GSM
System Module
WCDMA
System Module
900
RF sharing
GSM
System Module
LTE
System Module
900
RF sharing
Each RAT requires dedicated System Module
Common
System Module (LTE + WCDMA + G
RF sh
One common System Modu
up to 3 RATs and dedicate
modules
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18 © Nokia Solutions and Networks 2015
SRAN reduces site complexity
2G/3G 900
Radio Module3G 2100 Radio
Module
2G/4G 1800
Radio Module
4G 800 Radio
Module
FSMF: Common
2G/3G/4G
Baseband
X
X
X
X
Nokia SRAN • Common/ Sh
Radio and Base
• Single SRAN
• Common O&
2 cabinets & 12 radios3 separate basebands
GSM with TDM; IP for
WCDMA and LTE
4 radios and common baseband, all-IP
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19 © Nokia Solutions and Networks 2015
SRAN simplifies networks
Less complexity: common & shared HW
Simpler operations: common SW and OAM
Lower TCO: OPEX savings
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20 © Nokia Solutions and Networks 2014
SR N summary
From single Radio Access Technology (RAT) to Single RAN
One maGSM
BTS GSM OAMGSM TRS
WCDMA
BTSWCDMA OAM
WCDMA TRS
LTE
BTS LTE OAMLTE TRS
GSM / WCDMA / LTE
SBTSOAM
TRS
Pre-SRAN SRAN
SBTS 16
• Simultaneous processing of 3R
module
• Baseband capacity shared to diffe
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21
Confidential
¡Muchas gracias