3 Configurations

7/30/2019 3 Configurations

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Company Confidential

1 2005 Nokia V1-Filename.ppt / yyyy-mm-dd / Initials

Flexi EDGE BTS ConfigurationsMinimum and maximum configurationsCapacity expansion stepsBTS cablingCombining options


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Objectives

After the module the participant will be able to:

Describe minimum and maximum configurations Give a typical growth path, and show how the hardware should be laid out to

achieve this

Give examples of the Smart Radio Concept (SRC) featuresNote: Some of these will be developed after the initial S/W release


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Nokia Flexi EDGE BTS: from small to largeconfigurations Flexible capacity increase from small to very large

configurations 1 to 24 TRX in 1-6 sectors under 1 BCF up to 216 TRX per site

High site capacities possible even without a cabinet All dual band configurations supported

ANSI and ETSI frequencies GSM 800/1800, GSM 800/1900, GSM 900/1800

Min configuration1-2 TRX , 2 modules

Max configuration / BCF8+8+8 TRX, 14 modules


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S y s m o

d u

l e

S e c

t m o

d u

l e

Sect module

Sect module

Sys module

Sect module

Stack 2+2+2 8+8+8 Indoor 48V DC4+4+4 Outdoor with Batteries2 TRX, wall Stack 4+4+4

Examples of Nokia Flexi EDGE BTS configurations

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

Sys ext module

Sys module

Sys ext module

DTRX (Dual TRX)

Sector module (DTRX + duplex filter)

GSM/EDGE Modules

DTRX

DTRX

DTRX

Weight: ~150 kg

Low weight load of Nokia Flexi EDGE BTS simplifies site construction work

Weight: ~100 kg Weight: ~250 kg

DTRX

MIBBU

HEXLTE

LTE

LTE

LTE

FAN batt batt batt batt

DTRX D T R X

Sect module

Sect module

Sect module

Sys module

Sect module

Sect module

Sys module

S e c

t m o

d u

l e

Sect module

Sect module

Sect module

Sys module


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GSM 4+4+4 &WCDMA 4+4+4

WCDMA/HSPA Modules

2+2+2 4+4+4

GSM/EDG

E

GSM/EDG

E

GSM/EDGE/

WCDMA/HSPA

GSM/EDGE

WCDMA/HSPA

RF module

DTRX

DTRX

DTRX

Example of Nokia Flexi BTS growth path

Sys module

Sys ext module

DTRX (Dual TRX)

Sector module(DTRX + duplex filter)

GSM/EDGE Modules

Sys module

RF moduleSys module

RF module

RF module

Sect module

Sys module

Sect module

Sect module

Sect module

Sys module

Sect module

Sect module

DTRX

DTRX

DTRX

Sect module

Sys module

Sect module

Sect module


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Nokia Flexi EDGE installation and cabling steps2+2+2 stack installation

Install the plinth Ground the plinth (so wrist-strap is grounded)

Unit installation1. Assemble the stack of casings on plinth2. Install the modules into the casings3. Install the cable entries

Unit cabling1. Ground the units to the plinth2. Connect the antenna cables3. Connect the transmission cable4. Install the power cables5. Install the bus cables6. Install the RF cables7. Connect the 48V DC input cables

Cover installation

1. Install the rear covers2. Install the front covers

2+2+2 538(H) * 447(W) * 560(D)mm


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Nokia Flexi EDGE installation and cabling stepsExpansion to 4+4+4 stack installation

Removing cables Unit installation

1. Place modules into the casings2. Install the modules3. Install the cable entries

Unit cabling1. Ground the units2. Install the bus cables3. Install the RF cables4. Install the power cables

Cover installation

1. Install the rear covers2. Install the front covers

NB! In 4+4+4 floor installations 3 EUCA kits(incl 977mm RF cables) are needed (1/sector)

4+4+4 18 HU * 447(W) * 560(D)mm


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Nokia Flexi EDGE installation and cabling steps8+8+8 installation in Indoor cabinet

Cabinet installation1. Anchor the cabinet

2. Ground the cabinet

Unit installation1. Install the support plates

2. Install the cage nuts

3. Install the units

Unit cabling1. Connect antenna cables

2. Connect the transmission cable

3. Install the power cables

4. Install the bus cables5. Install the RF cables

6. Connect 48V DC input cables


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Dual TRX module can be implemented in capacity mode or coverage mode

In capacity mode both TRXs of the DTRX are used for capacity

Four combining options for capacity mode: By-pass combining

2-way wideband combining (WBC) 4-way wideband combining (WBC)

6-way Remote Tune Combining (RTC)

Nokia Flexi EDGE BTS in capacity mode


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LNA

LNA

D u pl e

x er

D u pl ex

er

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl e

x er

D u pl ex

er

Combining By-pass with 2-way RX diversity

Dual TRX transmitting and receiving to 2 antennas boosting the coverage area

by about 30% (+3.4 dB) compared to using 2:1 combining

DualDuplexer Dual TRX

Example: 2 TRX/cell

TX1

RX1 MainDiv

RX2 MainDiv

TX2

Div

Antennas

X


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DualDuplexer

Antennas

X

TX1

RX1 MainDiv

RX2 MainDiv

TX2

Div

TX3

RX3 MainDiv

RX4 MainDiv TX4

Div

LNA

LNA

D u pl ex

er

D u pl ex

er

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

Example: 4 TRX/cell

WBC

Wideband CombinersDual TRXs

2-way Wideband Combining with 2-way RX diversity

WBC


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4-way Wideband Combining with 2-way RX diversity

DualDuplexer

Antennas

X

LNA

LNA

D u pl ex

er

D u pl ex

er

WBCWBC

WBC

WBC

Wideband CombinersDual TRXs

WBC

WBC

TX1 RX1

MainDiv

RX2 MainDiv TX2

Div

TX3 RX3

MainDiv

RX4 MainDiv TX4

Div

TX5 RX5

MainDiv

RX6 MainDiv TX6

Div

TX7

RX7 MainDiv

RX8 MainDiv TX8

Div

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

Example: 8 TRX/cell


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LNA+

Multi-coupler

RX

f i l t er

Cavities

RX f i l t er

D u pl ex

er LNA+

Multi-coupler

1 X-pol Antenna

X

TX5 RX5

MainDiv

RX6 MainDiv TX6

Div TX3 RX3

MainDiv

RX4 MainDiv TX4

Div TX1 RX1

MainDiv

RX2 MainDiv TX2

Div

Remote Tune Combining with 2-way RX diversity

Example: 6 TRX/cell

Remote TuneCombiner (RTC)

Dual TRXs

With RTC up to 6 Tx signals can be combined into 1 antenna, minimizing the

combiner loss

6

6

6


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LNA+Multi-

coupler

RX f i l t er

Cavities

RX f i l t er

D u pl ex

er LNA+

Multi-coupler

LNA+Multi-

coupler

RX f i l t er

Cavities

RX f i l t er

D u pl ex

er LNA+

Multi-coupler

TX11 RX11

MainDiv

RX12 MainDiv TX12

Div TX9 RX9

MainDiv

RX10 MainDiv TX10

Div

Remote Tune Combining with 2-way RX diversity

Example: 12 TRX/cell

Remote TuneCombiners (RTC)

12 TRX/cell can be built with 2 RTC and 1 x-

polarized antenna

Antennas

XDual TRXsTX5 RX5

MainDiv

RX6 MainDiv TX6

Div TX3 RX3

MainDiv

RX4 MainDiv TX4

Div TX1 RX1

MainDiv

RX2 MainDiv TX2

Div

TX7 RX7

MainDiv

RX8 MainDiv TX8

Div


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Nokia Flexi EDGE BTS in coverage mode

For boosting cell size and thereby reducing the number of sites, both downlink anduplink enhancement methods are implemented

Double Power TRX (DPTRX): The output power of 2 TRX is combined in a synchronized manner within Wideband

Combiner (phase feedback to TRX from WBC) , doubling the TRX output power whileusing 1 TRX for capacity

In DPTRX the combined 2 TRXs must be in the same Dual TRX module DPTRX can be used in downlink limited cases or together with uplink improvement

methods, to increase cell coverage

Five options for coverage mode: DPTRX with 2-way UL diversity DPTRX with 4-way UL diversity Intelligent Downlink Diversity (IDD) with 2-way UL diversity Nokia Smart Radio Concept (SRC) DPTRX with Nokia SRC


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Double Power TRX with 2-way uplink diversity

Example: 1 TRX/cell

DPTRX is achieved by coherently combining TX signals of 2 carriers within DTRX Is implemented with 1 Sector module/sector (1 TRX capacity)

1 TX antenna required for DL (DPTRX) & 2 RX antennas for UL (2-way div)total of 2 antennas (TX/RX + RX)

Output power gain 2.5 dB DL coverage area is 25% larger For enhancing UL, MHAs are recommended

Combiner DualDuplexer

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

WBC

Dual TRX

TX1

RX1 MainDiv

RX2 MainDiv

TX2

Div

Phase feedback cablefor coherent combining

MHA

Antennaand MHAs

X


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Double Power TRX with 4-way uplink diversity 1/3

4-way UL diversity balances the higher output power of DPTRX

Is implemented with 2 Sector modules/sector

2 TX antenna required for DL (2*DPTRX) & 4 RX antennas for UL (4-way div)total of 4 antennas (2 TX/RX + 2 RX)

Output power and sensitivity gains are 2.5 dBcoverage area is 25% larger

bl h d


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LNA+Multi-

coupler

LNA+Multi-coupler

D u pl ex

er

D u pl ex

er

Phase feedback

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

TX3

RX3 MainDiv

RX4 MainDiv

TX4

Div

TX1

RX1 MainDiv

RX2 MainDiv

TX2

Div

Double Power TRX with 4-way RX diversity 2/3

Wideband Combiners(coherent) DualDuplexersDTRX UnitsAntennas

Example: 1 TRX/cell

Needed for supporting second Duplexer (DC power)

WBCX X

D bl P TRX i h 4 RX di i 3/3


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Antennas

X X

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

WBC

LNA+Multi-

coupler

LNA+Multi-coupler

D u pl ex

er

D u pl ex

er

Wideband Combiners(coherent) DualDuplexersDTRX Units

Double Power TRX with 4-way RX diversity 3/3

Example: 2 TRX/cell

WBCTX1

RX1 MainDiv

RX2 MainDiv

TX2

Div

TX3

RX3 MainDiv

RX4 MainDiv

TX4

Div

Phase feedback

Phase feedback


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Intelligent Downlink Diversity with 2-way uplinkdiversity

Example: 1 TRX/cell

Nokia Intelligent Downlink Diversity (IDD) is an effective way of boosting thedownlink: it is based on space and time diversity and signal tuning

Is implemented with 1 Sector module/sector 2 TX antenna required for DL (IDD) & 2 RX antennas for UL (2-way div + MHA)

total of 2 antennas (2TX/RX) Output power gain on average 5 dB DL coverage area is 50% larger

DualDuplexer

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

Antennaand MHAs

X

Dual TRX

TX1

RX1 MainDiv

RX2 MainDiv TX2

Div

MHA


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Nokia Smart Radio Concept 1/2

Nokia Smart Radio Concept (SRC):Intelligent Downlink Diversity (IDD) with 4-way uplink diversity and MHA


Based on IDD and UL enhancement with MHA and 4-way UL diversity

4 TX antenna required for DL (2*IDD) & 4 RX antennas for UL (4-way div +MHA)

total of 4 antennas (4TX/RX)

The improvement to coverage: average 5dB, in rural 8dB )up to 50% less sites are needed

N ki S R di C 2/2


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LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

LNA+Multi-

coupler

LNA+

Multi-coupler

D u pl ex

er

D u

pl ex

er

X

DualDuplexersDual TRXs

TX1

RX1 MainDiv

RX2 MainDiv

TX2

Div

TX3

RX3 MainDiv

RX4 MainDiv

TX4

Div

Nokia Smart Radio Concept 2/2

Example: 2 TRX/cell Antennasand MHAs

MHA

X


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Double Power TRX with Nokia SRC 1/2


2 TX antenna required for DL (DPTRX & IDD) & 4 RX antennas for UL (4-way div + MHA)

total of 4 antennas (2TX/RX+2RX)

Output power gain on average 7.5 dBDL coverage area is 75% larger

This solution is recommended for DL limited sites (usually because of very high masts)



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LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

WBC

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

Combiners DualDuplexers

DTRX Units


Example: 1 TRX/cell

WBCTX1

RX1 MainDiv

RX2 Main

Div TX2

Div

TX3

RX3 MainDiv

RX4 MainDiv TX4

Div

Phase feedback cable


X

Antennasand MHAs

MHA

X


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Nokia Flexi EDGE BTS RF performance

BTS Output Power DTRX800/900/1800/1900

DPTRX800/900/1800/1900

Max # of TRXs /

antennaelement

Frequency hopping

dBm W dBm W

TRX output 47.0 50 49.5 89.5 - -

IDD 50.5 112 53 200 1 RF & BB

Combiner by-pass 46.2 41.7 48.5 71 1 RF & BB

RTC 44.0 25 6 BB

WBC 2:1 42.7 18.5 2 RF & BB

WBC 4:1 39.4 8.7 4 RF & BB

BTS Receiver Sensitivity, withNokia High Gain MHA

Sensitivity800/900&1900

Sensitivity1800

dBm dBm

4-way diversity -118 -118.5

2-way diversity -115.5 -116Single branch -112.5 -113

NOTE: RF performance results are not finalized .


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Nokia Flexi EDGE BTS output power

BTS nominal output power values are measured at the Dual Duplexer modules antenna

connector (same as TOC figures of traditional cabinets) Output power values are defined with GMSK modulation. With 8-PSK modulation, values

are 2 dB smaller.

Intelligent Downlink Diversity (IDD) doubles (~3 dB) the received signal power at thehandset and multiple diversity gains add downlink by average of 1-2 dB, giving average4.5 dB gain in total. Shown output power values are after air-combining without antennagain.

Combining options: Combiner by-pass = No combining 1 TRX to one antenna WBC 2:1 = One stage Wide Band Combining 1...2 TRXs to one antenna WBC 4:1 = Two stage Wide Band Combining 1...4 TRXs to one antenna RTC 6:1 = Remote Tune Combining (cavity combining) 1...6 TRXs to one antenna

Output power values for RTC are given with 6 TRX and minimum channel spacing.With less TRXs and extended channel spacing, output power is up to 0.5 dB higher.

(Optional slides) IDD Vs Double Power for clarification


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(Optional slides) IDD Vs. Double Power for clarification(1)

Auxiliary (Delayed) TXReceived signal

Main TX

D

D = Delay of 1-1.5 symbolsDual

Duplexer

LNA+Multi-

coupler

LNA+Multi-coupler

D u pl ex

er

D u pl ex

er

Antennaand MHAs

Dual TRX

TX1

RX1 MainDiv

RX2 MainDiv TX2

Div

MHA

Baseband

LowCorrelationbetween

Antennas

IDD

(Optional slides) IDD Vs Double Power for clarification


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(Optional slides) IDD Vs. Double Power for clarification(2)

Baseband

EWxA ERxA

Logical diagram (TX path only shown)

Combiner DualDuplexer

LNA+Multi-

coupler

LNA+Multi-

coupler

D u pl ex

er

D u pl ex

er

WBC

Dual TRX

TX1

RX1 MainDiv

RX2 MainDiv

TX2

Div


MHA

Antennaand MHAs

X

DP

Documents

3 Configurations