Flexi Multiradio BTS LTE Evolution

(1)

Easy migration to

with Nokia Siemens Networks

Mikko Siira

(2)

2 © Nokia Siemens Networks Flexi Multiradio BTS LTE evolution / P3 2009

Customer confidential

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

(3)

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

(4)

Customer confidential

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

(5)

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

(6)

Customer confidential

Optional

TMA/MHA

• Optional TMA/MHAs

System Module

1 st

_{3-sector RF Module}

• System Module

• add 2

nd

_{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

(7)

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

(8)

Customer confidential

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

(9)

• 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

(10)

Customer confidential

• 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

(11)

Field Proven Reliability

Tropical, up to +55°C (121 °F)

Cold areas, down to -35 °C (-31 °F)

Extremely humid areas up to 95%

(12)

Customer confidential

Possible only with Flexi :

Complete Flexi BTS 3-sector Outdoor site

Flexi Multiradio

• System Module

(13)

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

(14)

Customer confidential

(15)

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

(16)

Customer confidential

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

Feeder

Cable

Antenna

Panel

Legacy BTS

Upgraded

New

multiband

antenna

Legacy BTS

Combining Combining Flexi RF Module Flexi RF Module Flexi System Flexi System

(17)

Co-siting Scenario – Inside legacy BTS

Existing

Feeder

Cable

Antenna

Panel

Legacy BTS

Upgraded

New

multiband

antenna

Legacy BTS

Flexi RF Module Flexi System Combining

Legacy BTS

Flexi RF Module Flexi System Combining Combining

• 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

(18)

Customer confidential

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

Upgraded

Feeder

Cables

Tower

Mounted

Amplifier

Existing

Antenna

3 sector

RF

Module

Optical

Legacy BTS

FlexiSystem

Legacy BTS

FlexiSystem FlexiSystem

(19)

Thank you

Traditional

macro BTS

Flexi

Multiradio

BTS

The Long Term

Evolution starts

now !