1 © Nokia Siemens Networks Flexi Multiradio BTS LTE evolution / P3 2009 Customer confidential
Easy migration to with Nokia Siemens Networks Mikko Siira LTE Product Line Management, eNB
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Simple upgrade to end-to-end LTE/SAE solution
Flexi Multiradio BTS
SGSN SAE Gateway
Internet
3GPP Rel 8 / LTE/SAE
Direct tunnel
SAE GW introduced on Next Generation Flexi ISN
MME functionality via SW upgrade
LTE capable via SW upgrade
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Focus on site costs: Flexi BTS
• 100 operators deploying Flexi BTS in WCDMA, EDGE, WiMAX and I-HSPA networks
• feederless site installations share increasing
Example Flexi BTS site
Base station is here in case you missed it
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Three sector site solution 1+1+1 • System Module • 3-sector RF Module 3 x 60 W
Multiradio System Module 3-sector RF
Complete Outdoor BTS • 60 liters • 50 kg
The most cost and size optimized 3-sector site
Flexi Multiradio BTS Site LTE or WCDMA
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3-sector RF Module 900 MHz 3-sector RF Module 1800 MHz
System Module 3-sector RF Module 2.6 GHz
Flexi Multiradio BTS LTE Multiband Example site evolution case • System Module • 3-sector RF Module for Band A
(e.g. 2.6 GHz) • 3-sector RF Module for Band B
(e.g. 1800 MHz) • 3-sector RF Module for Band C
(e.g. 900 MHz)
S1 to AGW X2 to eNB
Refarming 2G or 3G by Flexi LTE
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Optional TMA/MHA • Optional TMA/MHAs
System Module 1st 3-sector RF Module
• System Module • add 2nd 3-sector RF Module for MIMO • 1+1+1 @ 360 W with 2TX MIMO • Optional 4 way UL diversity (RL30)
Tx1/Rx1
Tx2/Rx2
Flexi Multiradio BTS smooth site evolution
2nd 3-sector RF Module
Optional easy capacity upgrade when and where needed with MIMO
Div Rx2
Rx3
Rx4
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Flexi Multiradio 3-Sector RF Module
Flexi Three Sector RF Module with 3 x 70 W power amplifiers is 3 x 60 W at the antenna connector • Improved OPEX, electricity consumption is 25% lower than previous generation RF • 1+1+1 LTE with one RF Module • Up to 4+4+4 WCDMA with only one RF Module • WCDMA Dualband, e.g. 2+2+2 (band1) and 2+2+2 (band2) with only two RF Modules • Outdoor IP65 , -35 … +55 °C • Support for Distributed site up to 20 km from System Module
Ant6 Ant5 Ant4 Ant3 Ant2 Ant1
The most cost and size optimized 3-sector configuration
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System Module
• Easier Installation • Less wind load and weight • One optical and DC cable to tower Standard Flexi RF Module can be installed close to antenna for maximal performance
⇒ No need for MHAs ⇒ no feeders ⇒ easy dual band
3-sector 3 x 60 W
RF Module IP65
with DC max 200 meters
Flexi Multiradio BTS Feederless
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• one RF Module per sector • Max 60 + 60 W per cell with 2TX MIMO • 60 W per 2 carriers (WCDMA)
• Optional 4 way UL diversity (SW according to RA roadmaps)
Most powerfull solution on sites where one RF unit per sector required
4-port or
2 X-pol Antenna
for Sector
1
Sector with extended
coverage (~3 dB) Tx/Rx1
Tx/Rx2
Multimode System Module
Rx3
Rx4
Flexi Remote RF Module one sector solution
one Sector (one shown of up to six): 2TX MIMO 60 + 60 W
Best Coverage and Highest Capacity MIMO Remote RF solution
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• one RF Module per sector • 60 + 60 W per cell with 2TX MIMO • 4 way UL diversity • Feederless • Sectorization by High Gain
Antennas (e.g. 6 sector / 30 deg)
Flexi RF Module 60 + 60 W
Ultimate Flexi coverage Solution with RF Module
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Field Proven Reliability
Tropical, up to +55°C (121 °F)
Cold areas, down to -35 °C (-31 °F)
Extremely humid areas up to 95%
Over 200 networks with Flexi BTS
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Possible only with Flexi : Complete Flexi BTS 3-sector Outdoor site
Flexi Multiradio • System Module • 3x 60 W RF Module
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EDGE SM Multimode SM
Multiradio RF Module
Flexi Multiradio BTS Site
BSC Abis
RNC Iub LTE/ WCDMA SM
GSM SM
Synch + Eth
“Dual host radio” in concurrent Mode
Tx1/RX1 GSM & WCDMA/LTE
RX diversity
EPC S1 / X2
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Interworking with legacy 2G or 3G BTS
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Evolution from any legacy BTS Flexi LTE BTS co-siting
Migration
Feeder Cable
MHA/TMA
Antenna Panel
Legacy BTS
Option 1
Existing or new
Multiband antenna
Legacy BTS
Flexi RF Module
Flexi System
Combining
Option 2
Existing or new
Multiband antenna
Legacy BTS
Combining
Flexi RF Module
Flexi System
Option 3
Feeder Cable
MHA/TMA
Existing Antenna
3 sector RF
Module
Optical
New Antenna
Legacy BTS
Flexi System
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Co-siting Scenario – Stacked Installation
• Flexi Multiradio BTS requires smallest footprint to deliver highest capacity
• BTS modules can be either – Stacked on floor next to
existing legacy BTS – Stacked on top of existing
legacy BTS – Mounted on wall next to
legacy BTS
Existing
FeederCable
AntennaPanel
Legacy BTSLegacy BTS
Upgraded
New multiband
antenna
Legacy BTS
CombiningCombining
Flexi RF ModuleFlexi RF Module
Flexi SystemFlexi System
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Co-siting Scenario – Inside legacy BTS
Existing
FeederCable
AntennaPanel
Legacy BTSLegacy BTS
Upgraded
New multiband
antenna
Legacy BTS
Flexi RF Module
Flexi System
Combining
Legacy BTS
Flexi RF Module
Flexi System
CombiningCombining
• Flexi Multiradio BTS compactness allows for installation in standard 19” rack
• BTS modules can be placed inside a legacy 19” cabinet if space is available – No additional footprint
required to deliver LTE
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Co-siting Scenario – Rooftop/Antenna Installations • Flexi Multiradio BTS modularity
makes it the best fit for tower top applications
• Provides for industry leading efficiencies – 3-sector configuration in one
module – Low wind loading and weight
• With separate legacy and LTE antenna elements the need for combining is eliminated
New Broadband
Antenna
Existing
Feeder Cable
Antenna Panel
Legacy BTS Legacy BTS
Upgraded
Feeder Cables
Tower Mounted Amplifier
Existing Antenna
3 sector RF
Module
Optical
Legacy BTS
Flexi System
Legacy BTS
Flexi System Flexi System
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Thank you
Traditional macro BTS
Flexi Multiradio BTS
The Long Term Evolution starts now !
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