01 CT10781EN01GLA0 Flexi Multiradio Prod Ovr Modules

1 © Nokia Siemens Networks CT10781EN01GLA0For internal use

Flexi Multiradio BTS Product Overview and Modules Description


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Module objectives

After completing this learning element, the participant will be able to:

Theory:• Understand the concept of Flexi Multiradio BTS• Describe the key feature of Flexi Multiradio BTS• Describe the application options for the Flexi Multiradio BTS for capacity solution

and coverage solution • List of the differences/similarities compared to 2G Flexi EDGE and 3G Flexi

WCDMA• Explain the Flexi Multiradio BTS architecture and modules • List the modules of the Flexi Multiradio BTS• Describe the main function of each module in the Flexi Multiradio BTS• Describe the site equipment supported Flexi Multiradio BTS


Content

Introduction of Flexi Multiradio BTS GSM/EDGE

Flexi Multiradio BTS GSM/EDGE Architecture

Flexi Multiradio BTS GSM/EDGE Optional Items

Flexi Multiradio BTS GSM/EDGE Main Modules


Content









Introduction to Flexi Multiradio BTS GSM/EDGEBackground (1/2)

Migration to LTE

Evolve to the ultimate next data & multimedia machine

Provide WCDMA and services in GSM bands

WCDMA refarming

Build OPEX optimized GSM sites prepared for future evolution

GSM New Sites, Expansions and Modernization


Introduction to Flexi Multiradio BTS GSM/EDGEBackground (2/2)

GSM UMTS LTE

Cheapest and widest range of terminals

Ultimate technology for spectral efficiency improvement

Global roaming

Broadest indoor, rural and global radio coverage

Best spectral efficiency available today

Widening terminal portfolio

Flat architecture

High integration level, low power consumption

Economies of scale through widest user base

For Voice and Data

Lowering cost per bit

Is it possible to have all these benefits in

one HW?


…..meet Flexi Multiradio BTS


Introduction to Flexi Multiradio BTS GSM/EDGEFlexi Multiradio BTS GSM/EDGE Product Overview

• Flexi Multiradio BTS is a base transceiver station that is part of the Nokia Siemens Networks Flexi BTS platform for GSM/EDGE, WCDMA, and LTE networks.

• It is a multiradio or multicarrier BTS that can use all these network technologies either in dedicated or concurrent mode of operation

• Its modular design makes site acquisition and installation easy, and reduces the time needed for rolling out network coverage in a new area.

• It allows using existing site space efficiently, the existing Flexi BTS modules can be installed together with Flexi Multiradio BTS modules.

• The existing Flexi BTS cabinets and casings, power supplies, and the 3G Flexi System Module can be used with Flexi Multiradio modules.


Introduction to Flexi Multiradio BTS GSM/EDGEThe evolution of Flexi BTS concept continues

2005/2006

Flexi WCDMA

Increased: Power Efficiency Radio performance Integration density Investment protection Flexibility Total Value of ownership

Flexi GSM/EDGE

2008

Flexi Multiradio site solutions

2010

Flexi Multiradio BTSGSM / WCDMA / LTE

New SM: GSM/EDGE high capacity

New RF: 900,1800 MHz

3sector RF module, 3x60W

RRH: (30W+30W), 60W

Flexi Multimode BTS (RU10)

•New SM: WCDMA/LTE

•New RF: 2100MHz

• 3 sector RF module, 3x 60W

• RRH 1x60W

WCDMA/LTE

2 sector RF1 sector RF

WCDMA SM

2 TRX RF

GSM SM


Introduction to Flexi Multiradio BTS GSM/EDGE Real concurrent mode and SW defined radio

GSM

EDGE

WCDMA

HSPA

:

LTE

Concurrent mode:Same Flexi BTS module operates simultaneously in two or more radio modes

Dedicated BTS HW

Radio features

O & M

BTS HW

Radio features

O & MRadio mode

Radio access functionality is shifted from dedicated hardware to software


Introduction to Flexi Multiradio BTS GSM/EDGEFlexi Multiradio BTS Platform

RF ModuleSystem Module

Remote RF Head

Flexi Multiradio BTS

Site acquisition and construction principles

Com

mon

for

al

l rad

io

tech

nolo

gies

Antenna system / transport / power systems

Modular BTS platform

OROptional AC/BBU Module

Fle

xi B

TS

bu

ildin

g bl

ocks


Introduction to Flexi Multiradio BTS GSM/EDGEFlexi Multiradio BTS – Product Concept

System Module

RF Module

SW

Multimode SMMultiradio EDGE SM

3-sector RF

GSM/EDGE SW WCDMA SW

LTE SW

WCDMA BTS

Multimode SM

3-sector RF

Multimode SM

3-sector RF

LTE BTS

Multiradio EDGE SM

3-sector RF

GSM BTS

Multiradio EDGE SM

Multimode SM

3-sector RF

GSM/WCDMA/LTE BTS


Introduction to Flexi Multiradio BTS GSM/EDGEFlexi Multiradio BTS in Concurrent Mode Operation

RF Module sharing GSM-LTE

Features BSS21520 and LTE447

RF Module sharing WCDMA-LTE

Features RAN2126 and LTE435


Multimode System Module

WCDMA SW 3-sector RF

ModuleMultimode System Module

LTE SW


LTE SW

3-sector RF

Module

EDGE 18/36 Carrier System

Module


RF Module sharing, dual band


LTE SW

3-sector RF

ModuleBand 2



Module

3-sector RF

ModuleBand 1

RF Module sharing GSM-WCDMA

Features BSS21403 and RAN1770


WCDMA SW

3-sector RF

Module


Module



Introduction to Flexi Multiradio BTS GSM/EDGERe-farming Frequency Bands: GSM – HSPA – LTE

• Re-farming frequencies Driver for Concurrent Mode

• Starting in 900 and 1800 MHz bands Re-farming GSM to HSPA or LTE

coverage

capacity

1800 MHz

GSM LTE refarming

900 MHzGSM HSPA / LTE refarming

2100 MHz

WCDMA LTE


High Capacity Flexi EDGE System Module 18/36TRX

High Capacity Multimode System Module (WCDMA/LTE)

3-Sector Multiradio RF Module (GSM/WCDMA/LTE)

• 1 Gbps throughput• Multiband support• Multimode support• Dedicated and concurrent

mode SW defined

• High Capacity (18/36 TRX)• Multiband support• Optimized for GSM/EDGE

• Highest integration density level • GSM/EDGE/WCDMA/HSPA/LTE

defined by SW• Dedicated and concurrent mode • 60W output per sector with

Multi Carrier Power Amplifier (MCPA)

3 sector RFM (GSM/WCDMA/LTE)

GSM/EDGESystem Module

WCDMA/LTESystem Module

Introduction to Flexi Multiradio BTS GSM/EDGE3 main building blocks to a complete GSM/WCDMA/LTE Site


Flexi Multiradio BTS is the baseline for Multiradio solution

• Revolutionary BTS with weather-proof modules

• Installation in stacks, on walls, poles, in 19” racks or new flexi cabinets or legacy BTS cabinet

•Same modules for indoors and outdoors, macro- and microcellular sites

•Temperature range -33°C …+50 °C (performance guaranteed up to +50 °C), temporarily +55 °C

Capacity Solution

• 1 to 18/36* TRX in sectors under 1 BCF

Coverage Solution

• max output power 40/60** Watts RF, sensitivity -115.5 dBm (with 2-way UL diversity)

* ESMB / ESMC** RRH / RFM

Shared Solution

• RF module can be shared with WCDMA/LTE

Introduction to Flexi Multiradio BTS GSM/EDGEFlexi Multiradio BTS Product General Characteristic


Pole installation

Stacked installation

Introduction to Flexi Multiradio BTS GSM/EDGE Installation Option

Wall installation

NSN, 3rd party BTS cabinet or SSS installation

Up to 200* meters

Urban feederless site application


Introduction to Flexi Multiradio BTS GSM/EDGE Installation Option - Tower or mast installation

BTS modules installed on top of mast or tower

• A pole installations

BTS modules installed on base of mast or tower

• A stack or outdoor cabinet installation

• LTE space and optional BBU in cabinet


Introduction to Flexi Multiradio BTS GSM/EDGE Installation Option – Other options

“Street furniture” installation “Hidden” installation


• OBSAI interface: No additional optical converters• Removes coverage losses introduced by long feeder

runs• CAPEX savings in antenna system equipment and

installation work• Target signal strength can be achieved with lower

power level which means savings in OPEX• RF parts mounted next to antennas (no MHAs needed)

Up to 200* meters

RRH Application : Wide Area Rooftop

RF parts

Fiber, DC

System module, BBU

Rural Mast Top Site (RFM)

* Up to 40KM with Single mode fiber

Sector 1Sector 2

Sector 3

Sector 1

Introduction to Flexi Multiradio BTS GSM/EDGE Installation Option - Feederless Site Solution


Introduction to Flexi Multiradio BTS GSM/EDGEConformity to standards

Conformity to 3GPP Standards:• GSM/EDGE: GERAN TS 45.005 (Rel.8), TS 51.021: MC BTS class 1 and 2 *

– For MC BTS Class 1 the following relaxations apply:

Number of the carriers/branch: Up to 3 carriers

Total output power/branch: Up to 60W (1dB tolerance allowed)

– No single carrier 3GPP specifications are guaranteed.

• WCDMA: UTRA-FDDTS 25.104 (Rel.8), TS 25.141

• LTE: eUTRA TS 36.104 (Rel.8), TS 36.141

• Multi Standard Radio: 3GPP TS 37.104 Rel.9

*) MC BTS class 2 is characterized by a limit for TX 3rd order intermodulation of -60 dBc (average). Specification of TX spurious emissions outside the TX band will also be less stringent in an offset range from 2MHz to 10MHz from band edges.


Introduction to Flexi Multiradio BTS GSM/EDGERF Performance

# of carriers RFM

1 +47.8 dBm (60W)

2 +44.8 dBm (30W)

3 +43.0 dBm (20W)

4 +41.8 dBm (15W)

# of carriers RRH

1 +46.0 dBm (40W)

2 +43.0 dBm (20W)

3 +41.2 dBm (13.3W)

4 +40.0 dBm (10W)

Note! The allocated sum power/radio can be higher than 60W/branch in RFM or 40W/branch in RRH.

In this case allocation is only statistical output power. Nominal output power/branch is still 60W.

3-sector RFM GSM/EDGE output power

RRH GSM/EDGE output power

3-sector RFM WCDMA/LTE output power

RRH WCDMA/LTE output power

Nominal GSM/EDGE output power/TRX at antenna connector

# of TRX GMSK 8PSK 16/32QAM

1 +47.8 dBm (60W) +47.8 dBm (60W) +47.8 dBm (60W)

2 +44.8 dBm (30W) +44.8 dBm (30W) +44.8 dBm (30W)

3 +43.0 dBm (20W) +43.0 dBm (20W) +43.0 dBm (20W)

4 +41.8 dBm (15W) +41.8 dBm (15W) +40.6 dBm (11.6W)

5 +40.8 dBm (12W) +40.5 dBm (11.2W) +38.7 dBm (7.4W)

6 +40.0 dBm (10W) +38.9 dBm (7.8W) +37.2 dBm (5.2W)

Nominal GSM/EDGE output power/TRX at antenna connector

# of TRX GMSK 8PSK 16/32QAM

1 +46.0 dBm (40W) +46.0 dBm (40W) +46.0 dBm (40W)

2 +43.0 dBm (20W) +43.0 dBm (20W) +43.0 dBm (20W)

3 +41.2 dBm (13.3W) +41.2 dBm (13.3W) +41.2 dBm (13.3W)

4 +40.0 dBm (10W) +40.0 dBm (10W) +38.8 dBm (7.6W)

5 +39.0 dBm (8W) +38.7 dBm (7.4W) +36.9 dBm (4.9W)

6 +38.2 dBm (6.7W) +37.1 dBm (5.1W) +35.4 dBm (3.5W)

BTS Receiver Sensitivity

Sensitivity800/900/1800/1900

dBm

4-way diversity -118.0


Single branch -112.7

RX sensitivity of Flexi Multiradio BTS


Introduction to Flexi Multiradio BTS GSM/EDGEBTS powering and power consumption (1/3)

• Floating input voltage 48 VDC nominal– 40.5…57 VDC for System Module

– 36…57 VDC for Radio Module

• Power consumption requirements for Flexi Multiradio are defined for certain BTS configurations with certain load:

– 650W for GSM 4+4+4 with 40% TS load and 15W output power/TRX

– 400W for WCDMA 1+1+1 with 50% traffic load at 20W output power

– 790W for concurrent GSM 2+2+2/WCDMA 1+1+1 with 20W output power/carrier/TRX

– 400W typical power consumption for RRH with 100% load and 2*40W output power


Introduction to Flexi Multiradio BTS GSM/EDGEBTS powering and power consumption (2/3)

3 Sector RFM 925W, 100% Load

Configuration

O/P Power per TRX

Power Consumption

100% Load 50% Load 40% Load

2/2/2 20 760W 510W 460W

3/3/3 20 1010W 635W 560W

4/4/4 15 1010W 635W 560W

6/6/6 10 1010W 635W 560W

8/8/8 30 1940W 1190W 1040W

Power Consumption examples for various GSM configurations

ESMB with TRS unit : 85WESMC with TRS unit : 125W

2Tx, 40W+40W RRH 400W, 100% Load


Content




Flexi Multiradio BTS GSM/EDGE SW Compatibility






Flexi Multiradio BTS GSM/EDGE Architecture Flexi Multiradio Architecture basic principles

• Both GSM/EDGE and WCDMA/LTE have own separate System Modules.• The radio modules (RFM and RRH) as well as the antenna lines could be shared

between the system modules.• Flexi Mutiradio BTS GSM/EDGE can be used with operation mode:

• Dedicated mode 2G system• Concurrent mode with WCDMA or with LTE system

• In concurrent operation Flexi MR BTS is seen as two separate logical network elements with common radio resources.

3-sector RF

Module


Module

Dedicated Mode


WCDMA or LTE SW

3-sector RF

Module

EDGE 18/36 Carrier System Module

Concurrent Mode

f2F1

5MhzF2

5Mhzf1 f3

RF Module bandwidth

f2f1 f3

RF Module bandwidth

f3f3


Smallest starting configuration with 2 modules: • System Module (ESMB/ESMC)• RF Module (RFM/RRH) System Modules are GSM/EDGE compliant, and RF Module can be shared with WCDMA/LTE in concurrent mode.

System Module (ESMB/C)(transport)System Module (ESMB/C)(transport)

3HU

Radio Frequency ModuleRadio Frequency Module 3HU

Flexi Multiradio BTS GSM/EDGE Architecture Simpler architecture with fewer units

Note:

• in this example RF module used is FRM (FXxA)

• configuration supported by this example is 1+1+1 … 6+6+6


Flexi Multiradio BTS GSM/EDGE Architecture Functionality of modules

Power modulePower module(optional)(optional)

Optional sub-module

Functionality of main modules with bypass or wideband combining

Power module(optional)Power module(optional)

System module(transport)System module(transport)

Optical OBSAIOptical OBSAIControlControl DC PowerDC Power

BBUBBU

E1/T1 E1/T1 Flexbus Flexbus

Power AC/DC Power AC/DC

Abis IFAbis IF

48 VDC48 VDC

Software Tuned filtering, duplexing


Baseband ProcessingBaseband Processing

Multi Carrier PA (RF Processing)Multi Carrier PA (RF Processing)

RF

mo

du

le

Eg. RFMRF BasebandRF Baseband




RF BasebandRF Baseband




RF BasebandRF Baseband


BTS MGR WCDMAapplic

Flexi Multiradio BTS GSM/EDGE Architecture Flexi EDGE / Flexi WCDMA / Flexi Multiradio architectures comparation

GSM/EDGEapplic

O&MO&M

CTRL (Control Plane)CTRL (Control Plane)

SynchronizationSynchronization

RFRF

BB (User Plane)BB (User Plane)

TransportTransport

PowerPower

Flexi WCDMA

SystemModule

Flexi EDGE

SystemModule

TRX Module

RF Module

Multiradio GSM/EDGE

applic

SystemModule

RF Module

Optical OBSAI

Ethernet (electric)

Flexi Multiradio


Flexi Multiradio BTS GSM/EDGE Architecture New Flexi Multiradio Modules

Radio Module/RRH products :

• RFM (Radio Frequency Module):• FXCA: 850MHz; FXDA: 900MHz (E-GSM)

• FXDJ: 900J-band (CDMA costing)

• FXEA: 1800MHz; FXFA: 1900MHz

• RRH (Radio Remote Head):• FHDA: 900MHz; FHEA: 1800MHz

All radios are multi standard & multicarrier capable supporting:

GSM / EDGE / eEDGE up to 6 carriers per pipe

WCDMA up to 4 carriers per pipe

LTE up to 20MHz

Flexi Multiradio BTS EDGE System Module (ESMB/ESMC)

System Module is 2G specific, but can operate together with 3G/LTE system module in the same system. System module supports max. 36 EDGE carriers. Two separate product variants will be developed: ESMB for 18 carriers; ESMC for 36 carriers

Flexi Multiradio BTS 3*60W Radio Module (FXxA)

Flexi Multiradio BTS 2*40W Single sector

Remote Radio Head (FHxA)


Flexi Multiradio BTS GSM/EDGE Architecture Flexi Multiradio with WCDMA/LTE (concurrent RF WCDMA/GSM or LTE/GSM)

BTS control

GSM SW

WCDMA/LTE SW

BTS control

FDD WCDMA or LTE SW

Baseband

FDD WCDMA or

LTE SW

New Flexi Multiradio EDGE System Module (ESMB or ESMC)

Transport

ATM/IP SW

Transport

TDM SW

IF: E1/T1

IF: E1/T1/J1

IF: STM-1/OC-3

IF: FE/GbE

Baseband

GSM SW

Flexi rel. 2 SYS Module

Abis IF: PWE

Rel. 2.2 RFM (RRH)

RF SW

IF: Flex Bus

Iub /

S1


Flexi Multiradio BTS GSM/EDGE Architecture Flexi EDGE BTS vs Flexi Multiradio BTS GSM/EDGE

Flexi Multiradio BTS GSM/EDGE Flexi EDGE BTS

Main Modules & Functionality

• ESMB/ESMC• Centralized baseband processing

• Optical OBSAI for System Module to RF Module connection

• RF Module (FXxA) / Radio Remote Head (FHxA)• MCPA (Multi Carrier Power Amplifier),

no TX combining and BTS internal RF-cabling

• Generate maximum 6+6+6/4+4 TRXs, with max 1 pipe is 60/40 Watts (47.8/46 dBm). For FXxA each pipe has one Tx/Rx and one Rxdiv antenna port and for FHxA, each pipe has one antenna port TR/Rx.

• Front end filter integrated to the radio and SW tunable in RM

• New variant of 3G

• ESMA• Baseband Processing

Distributed to the DTRX

• Ethernet cable used for System Module to RF Module connection

• EXxA (Dual TRX)– Two independent TRX,

each max : 47 dBm (50 watts)

– Need combiner if want to have config 2-way or 4 way

– not compatible for 3G

• ERxA (Dual Duplexer)– Two independent filtering &

duplexer with each has one Tx/Rx antenna port

– Need RF cabling between ERxA and EXxA


Content



Flexi Multiradio BTS GSM/EDGE Optional items






Flexi Multiradio BTS GSM/EDGE System Module (ESMB/C)


Flexi Multiradio BTS System Module (ESMB/ESMC)General Information (1/2)

• The Medusa BTS System Module (ESMB/ESMC) is a 2G specific system module in the Medusa BTS.

• Module has IP 65 protected with temperature range -35 to +55 degrees C

• System Module is the centre of the system and has main functions include:– BTS Operations and Maintenance

– Abis termination and Transport interfacing

– Optical OBSAI connectivity and related multiplexing/chaining functions

– Power distribution to the RF modules

– High capacity GSM baseband functionality for up to 18/36 TRX

– BTS SynchronizationESMB/ESMC


Flexi Multiradio BTS System Module (ESMB/ESMC)General Information (2/2)

• There are two variants of Medusa System Module The difference is in the capacity of integrated baseband processing:

– ESMB - up to 18 carriers (TRXs) capacity (TRX IDs: 1 .. 18)

– ESMC - up to 36 carriers (TRXs) capacity (TRX IDs: 1 .. 36)

• BTS configuration (BCF) can include only one ESMB/ESMC unit

– System Module variant is selected according to capacity requirements (no of carriers (TRXs) to be supported)

• More than one System Module can be configured in a single BTS site when the Multi BCF / common BCCH feature is in use

– System Module units must be synchronized together


Flexi Multiradio BTS System Module (ESMB/ESMC)Construction and Interfaces

• 4 optical SFPs. OBSAI RP3-01 interface (3Gbps). (3 for RF modules, 1 for 3G/LTE system module connection or ESMB/ESMC chaining or alternatively all 4 for RF modules)

• 48VDC BTS power input terminals

• 5 Power distribution I/Fs (4 for co-located RFMs, and 1 extra for any additional modules)

• A slot for Integrated transport sub-module (various interface options available)

• Ports for Power Module Alarms, Local Management and Q1

• External Alarm Control port with 12 inputs and 6 outputs, or connectivity to EAC Ext. Module

• Two ports for external synch. input or synch. extension to other co located base stations

• Status-LED, Power LED and Power Push Button

• Grounding terminal

FPA Optical RP3 01Synch

outSynch

in EAC Q1

PWR

Transmission PIU

Power input

Ground

PWR PWR PWR AUX PWR

Status and Power LED

3 HU

LMP

FlexiPowerAlarm (FPA) interface for BBU alarms (6 alarm inputs)

EAC (External Alarm & Control) interface•12 alarm inputs•6 control outputs


Flexi Multiradio BTS System Module (ESMB/ESMC)External Alarms and Controls in ESMB/ESMC

Flexi Multiradio BTS supports 24 inputs and 6 output controls• An optional module, FSEB, is needed for beyond 12 external alarm inputs

FlexiPowerAlarm (FPA) interface for BBU alarms (6 alarm inputs)

EAC (External Alarm & Control) interface•12 alarm inputs•6 control outputs

EAC input mapping:

Input mapping for inputs 1..6

•1…6 EAC inputs are mapped to FlexiPowerAlarm (FPA) connector at ESMB/ESMC

•Optional EBCA alarm cable is connected to FPA connector, typically used for BBU

Input mapping for additional inputs with System module only

•7...18 EAC inputs are mapped to EAC-connector at ESMB/ESMC

•Optional IP protected FSAA alarm cable 15 m instead of FSEB can be used here

Input mapping when optional FSEB, Flexi System External alarm module in use

•7...24 EAC inputs are mapped to optional FSEB


Flexi Multiradio BTS System Module (ESMB/ESMC)Functional Overview


Flexi Multiradio BTS System Module (ESMB/ESMC)Module HW Architecture

The System Module is separated into 3 main subassemblies (PCBs) + TRS plug-in unit:

• System Board (FESB)

• Baseband Board (FEBB)

• Power Board (FEPB)

Front perspective view

Side view with board distribution


Flexi Multiradio BTS GSM/EDGE RF Module – RFM (FXxA)


Flexi Multiradio BTS GSM/EDGE RF Module (FXxA)General Information (1/7)

• RF Module (FXxA) consist of 3 independent branches (pipes), which is optimized for 3 sector Macro BTS use.

• Each branch (pipe) can transmit and receive multicarrier signals of multiple radio technologies concurrently, therefore:

– RF combining and BTS internal RF cabling is not needed (no need combining losses in the Link Budget calculations)

– Flexi EDGE TRXs cannot be reused for Multiradio BTS

• RFM can be installed in stacks, cabinets, also mast-tops

FXxAESMB/ESMC

MCPA

Trip

le S

Tu

F

MCPA 60W

Carrier7-12

Carrier1-6

60W

MCPACarrier13-18 60W



• Each branch (pipe) contains:– The transmitter and receiver chains and the front end,

software tunable filters

– Two receive chains to provide 2-way receive diversity

– Integrated antenna line supervision and MHA support

– OBSAI connectivity (optical 3 x RP3-1 interfaces)

• Each transmitter and receiver is capable to carry up to 6 carriers (TRXs)

• Single RFM capacity is up to 18 carriers (TRXs) (6+6+6)

• Capacity extension can be done by installing additional RFM.

MCPA – Multi Carrier Power Amplifier

LNA – Low Noise Amplifier

RXMC – Receiver Multicoupler



• RFM is a single band module. Separate FXxA modules for each frequency band are supported by Flexi Multiradio BTS

• RFM operational bandwidth in both UL and DL is limited:– 20 MHz for 1900MHz

– 30 MHz for 1800MHz in UL and 20 MHz in DL

– 20 MHz for 900MHz

– 12.5 MHz for 900MHz J-band (P-GSM for CDMA co-sitting)

– 15 MHz for 850MHz

• There is a SW tunable pass band filter on each branch of the RFM module which is tuned automatically by the BTS SW. The filter tuning range covers the whole RFM bandwidth but the simultaneous bandwidth is limited as shown above

RFM Type Band RX Freq. Range

TX Freq. Range GSM Channel Numbers

3GPP operating band

Duplex distance

FXCA 850MHz 806-849 MHz 851-894MHz 128-251 V, VI, XVIII and XIX 45 MHzFXDA 900MHz 880-915 MHz 925-960 MHz 975-1023 ,0-124 VIII 45 MHzFXDJ* 900 MHz J-band 890-915 MHz 935-960MHz 1-124 VIII partially 45MHzFXEA 1800MHz 1710-1785 MHz 1805-1880 MHz 512-885 III and IX 95 MHzFXFA 1900MHz 1850-1910 MHz 1930-1990 MHz 512-810 II 80 MHz

Note: FXDJ type of RFM does not support concurrent mode



f1

Up to 6 GSM TRX´s per MCPA

f2 f3 f4 f6f5

f1

5Mhz

f2

5Mhz

f3

5MHZ

f4

5Mhz

Up to 4 WCDMA carriers per MCPA

Up to 20MHz LTE per MCPA

X=1.4/3/5/10/15/20MHz

F1X Mhz

Up to 444 GSM +max 10MHz LTE/WCDMA per MCPA

f2f1

5Mhz

F

5Mhzf1 f3

F1f4

• Each RFM branch (pipe) can support several carriers (frequency blocks for WCDMA/LTE and virtual TRXs in case of GSM/EDGE) within the available RFM bandwidth or the bandwidth can be shared between different technologies

• Up to 6 carriers can be defined for GSM/EDGE (independently on RFM bandwidth)

• Carriers can be defined using 100 kHz frequency raster (minimum 400 kHz of the carrier separation needs to be kept between GSM/EDGE carriers)



• In the concurrent mode there is a limited number of carrier configurations supported by each RFM branch (pipe)

• Dedicated SW features need to be used to enable RFM sharing between different technologies (concurrent mode) - apart from the HW capabilities (max no of carriers per pipe) the list of supported carrier combinations is determined by the features

– RG10/RU20: RF sharing WCDMA – GSM

– RG25/RL20: RF sharing 2G – LTEFrequency, BW (Tx/Rx) 850MHz, 15/15MHz 900MHz, 20/20MHz 1800MHz, 20/30MHz 1900MHz, 20/20MHz

GSM TRXs 6+6+6 6+6+6 6+6+6 6+6+6

WCDMA carriers 2+2+2 4+4+4 4+4+4 4+4+4

LTE bandwidth 1.4/3/5/10 1.4/3/5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10/15/20

Output power /sector 60W 60W 60W 60W

Concurrent mode(s)

supported by HW:

555 GSM+5MHz

444 GSM+10MHz

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE

GSM/LTE

GSM/WCDMA

GSM/WCDMA/LTE

WCDMA/LTE



• The nominal output power at the antenna connector for the 3-sector RFM is 60W per branch (pipe)

• The nominal output power at each branch (pipe) is the maximum cumulated sum of output powers of all the carriers/TRXs within that branch

– The output power per carrier of a radio branch decreases with the increasing number of carriers in the radio branch

– The output power of each carrier/TRX within the branch can be adjusted separately

• The carriers can be split to multiple radio branches within one sector to increase the output power and thus the BTS coverage

GMSK 8PSK 16/32QAM

1 1 +47.8 dBm (60 W) +47.8 dBm (60W) +47.8 dBm (60W)2 1 +44.8 dBm (30 W) +44.8 dBm (30 W) +44.8 dBm (30 W)3 1 +43.0 dBm (20 W) +43.0 dBm (20 W) +43.0 dBm (20 W)4 1 +41.8 dBm (15 W) +41.8 dBm (15 W) +40.6 dBm (11.6 W)5 1 +40.8 dBm (12 W) +40.5 dBm (11.2 W) +38.7 dBm (7.4 W)6 1 +40.0 dBm (10 W) +38.9 dBm (7.8 W) +37.2 dBm (5.2 W)8 2 +41.8 dBm (15 W) +41.8 dBm (15 W) +40.6 dBm (11.6 W)10 2 +40.8 dBm (12 W) +40.5 dBm (11.2 W) +38.7 dBm (7.4 W)12 2 +40.0 dBm (10 W) +38.9 dBm (7.8 W) +37.2 dBm (5.2 W)

Output power 900 MHz / 1800 MHzNo of carriers (TRXs) per

sector

No of RM branches per

sector

Output power per carrier in case RFM is working in a dedicated mode



• In case of concurrent mode the nominal output power at each branch (pipe) is shared between carriers of different technologies

– There is a fixed share of the nominal output power of each branch (pipe) between technologies

– Then, the output power dedicated to each technology is distributed among defined carriers (GSM) or limited according to installed license (LTE)

– Dedicated SW features need to be used to enable RFM sharing between different technologies

RG10/RU20: RF sharing WCDMA – GSM

RG25/RL20: RF sharing 2G – LTE

– Maximum output power per carrier is determined by supported in the feature RF configurations

• The target receiver sensitivity of Flexi Multiradio BTS is to be at least the same as of the existing Flexi EDGE

BTS Receiver Sensitivity

Sensitivity800/900/1800/1900

dBm



Single branch -112.7

RX sensitivity of Flexi Multiradio BTS


FAN/ Status TX Module

OPT 1 OPT 2 OPT 3

Flexi Multiradio BTS GSM/EDGE RF Module (FXxA)Construction and Interface (1/2)

FAN/ Status TX Module

OPT 1 OPT 2 OPT 3

900/1800 Version

850/1900 Version


• 3 RP3-01 OBSAI 3 Gbps interfaces

• 3 TX/RX Antenna Interfaces (including AISG 2.0 support, Bias-T and VSWR meas)

• 3 RX Antenna Interfaces (including Bias-T)

• 3 Co-siting RX outputs

• 48V DC PWR input

• External Alarm interface

PWR IN Ant 6Rx

Ant 5Tx/Rx

Ant 3Tx/Rx

Ant 1Tx/Rx

Ant 4Rx

Ant 2Rx

Ant 1Rx Out

Ant 3Rx Out

Ant 5Rx Out

EAC OPT 1 OPT 2 OPT 3Fan / RF Off Unit CLASS 1 LASER PRODUCT

External Interfaces

Flexi Multiradio BTS GSM/EDGE RF Module (FXxA)Construction and Interface (2/2)


STuF mechanics including PSU input, PA power input, and LNA function

Modular PA mechanical assemblies w/extruded fin heatsinks

TRX mechanics w/TX, RX, and BB block functions on PWB

TRX sub assembly (three TRX blocks and BB block integrated to same PWB)

Flexi Multiradio BTS GSM/EDGE RF Module (FXxA)RF Module construction

STuF (SW Tuneable Filter): A mechanical filter (one on each branch or “pipe”) which is tuned with a small step motor, controlled automatically by BTS SW.


Flexi Multiradio BTS GSM/EDGE RF Module (FXxA)RF Module (FXxA) Main Block Architecture (3-sector RFM)

* Applicable to FXCx and FXFx only


Flexi Multiradio BTS GSM/EDGE RF Module (FXxA)Functional blocks

• Radio Module consists of three individual branches designed to transmit and receive multicarrier signals of multiple radio technologies concurrently.

• The module contains the necessary common functionality like the digital and control circuitry, RP3-1 interface and the needed DC/DC power conversion.

• Each branch contains the transmitter and receiver chains and the front end filters

• The front end filters are software tuneable filters.

• For support of legacy site expansion cases, RFM has separate UL diversity outputs for each branch so that the diversity can be shared between Flexi Multiradio BTS and a co-sited BTS.

• Diversity sharing requires the co-sited BTS operates in the same sub-band frequencies within the frequency band.

• The co-sited BTS can be at least NSN Ultrasite, Flexi EDGE or BTSplus. • The fans used for module cooling are replaceable.


Flexi Multiradio BTS GSM/EDGE Radio Remote Head (RRH)


Flexi Multiradio BTS GSM/EDGE Radio Remote Head (RRH) - General Information

• Optimized for 1 sector Macro BTS use.• Supports MIMO with SW upgrade• 3G/LTE Upgrade with System Module change/addition &

multimode SW• Two individual branches for transmitting and receiving• Integrated Duplex-filter & integrated OBSAI RP3-01

interface• Maximum 2*40W output power per TRX• Dedicated and concurrent mode• Flexible power and bandwidth allocation between the

radio technologies controlled by operator• Compliant to MC BTS (Class 2) 3GPP specification

• For MC BTS Class 1 the following relaxations apply:– Number of the carriers/branch: Up to 3 carriers– Total output power/branch: Up to 40W (1dB tolerance

allowed)

• Frequency variants for • 900MHz FHDA• 1800MHz FHEA

RRH

• < 17 kg (target)• IP65• -35 to +55 °C

RRH

• < 17 kg (target)• IP65• -35 to +55 °C

X

LNA

Duple

xer

MCPATX

RX

LNA

Duple

xer

MCPATX

RX

RRH


Flexi Multiradio BTS GSM/EDGE Radio Remote Head (RRH) – Construction and Interface

• 2 RP3-01 OBSAI 3Gbps interfaces

• 2 TX/RX duplex Antenna Interfaces

• 48V DC input, integrated class OVP

• External Alarm inputs (min 2 pcs)

• AISG 2.0 interface for RET

• LMP/test port

Note! RF External connectors are not supported by FHxA RRH

External Interfaces


Content



Flexi Multiradio BTS GSM/EDGE Optional items



Flexi Multiradio BTS GSM/EDGE Transmission sub-module


Transport Sub-modules

FIEA = 8 x E1FIPA = 8 x E1/T1 FIFA = 2 x Flexbus

Optimized for tail and small chain/loop sites• Different sub-module variants for different interfaces (E1, T1, FB)• Flexbus interface – BTS integrated indoor unit for FlexiHopper Microwave

Radio family • Outdoor casing optional (IP55, -33…+55°C)

Advanced features• Inbuilt cross-connect down to 16 kb/s• Supports loop protection and diversities• Integrated network management with NetAct

Flexi Multiradio System Module

Transmission SubmoduleIntegrated Transport (ITN) with Flexi MultiRadio BTS GSM/EDGE

FIQA = 4 x E1/T1 + 2 x 100 BT Fast ethernet + One optional gigabit Ethernet SFP module

FIYA = 4 x E1 + Two 100BT Fast Ethernet + One optional gigabit Ethernet SFP module


Module name Interfaces Remarks

FIPA 8 x E1/T1 120/100Ω, RJ48

FIEA 8 x E1 coaxial 75Ω, SMB

FIFA 2 x Flexbus TNC

FIQA

• 4 x E1/T1 (Balanced) + 2 x 100BT Fast Ethernet +

• One optional gigabit Ethernet SFP module

For Abis over IP/Ethernet using PWE3

FIYA

• 4 x E1 (Unbalanced) + 2 x 100BT Fast Ethernet +

• One optional gigabit Ethernet SFP module

For Abis over IP/Ethernet using PWE3

Transmission SubmoduleTypes


8 x E1/T1 interfaces

balanced 120/100 Ω

1 x RJ 48 connector per IF

Transmission SubmoduleFIPA


8 x E1 interfaces

un-balanced 75 Ω

2 x SMB connectors per IF

Transmission SubmoduleFIEA


2 x Flexbus interfaces

Impedance 50 Ω

1 x TNC connector per FB IF

Transmission Submodule FIFA (Integrated microwave radio indoor module)


Transmission SubmoduleFIQA

• Four balanced E1/T1Interfaces• Two 100BT Fast Ethernet Interfaces• One optional gigabit Ethernet SFP

module• Up to 8 E1/T1 links embedded in the

Fast Ethernet links.• Line synchronization or packet

synchronization


• Four unbalanced E1 Interfaces• Two 100BT Fast Ethernet Interfaces• One optional gigabit Ethernet SFP module• Up to 8 E1 links embedded in the Fast

Ethernet links.• Line synchronization or packet

synchronization.

Transmission SubmoduleFIYA


Flexi Multiradio BTS GSM/EDGE Power Options (optional)


• System module distributes power to other modules

• All modules generate own internal voltages

• BTS powering may be supplied from:• Flexi Power AC/DC module

(FPMA) (with or without battery) providing 48VDC input to the power distribution

• Flexi Power DC/DC module (FPDA) (24/48VDC)

• Multi Integrated Battery Back-up (MIBBU)

• Flexi Power Rectifier Module (FPRA)

• Standard Site support cabinet

48VDC

RF module

RF module

RF module

System module

Flexi BTS Power Options Distributed power supply

RF module


• FPMA is AC/DC Power Module frame with 4 sub-module slots for rectifiers and batteries• Flexi Power AC/DC 200-240 V AC sub-module (FPAA)

• 200-240 V AC 48V DC converter• 0…4 FPAA per Power module; 1kW power each• includes AC-filters

• Flexi Power Battery sub-module (FPBA)• gives minute-level back-up when AC mains are down• 0…3 FPBA per FPMA

+-

48VDC output to BTS

AC input cabling to FPMA

AC feed to FPAA (3pcs)

Example FPMA with 3 FPAA and 1 FPBA

Flexi Multiradio BTS GSM/EDGE Power OptionFlexi Power AC/DC Module (FPMA, 3HU)

RF Module

Power Module

AC in

DC

3 Sector RF Module

FPMA with FPAA and FPBA

AC B B

System Module

B

• Power module provides the casing and cable connectors for 4 power sub-modules

• input / output terminals, output DC and alarm cables

Example configuration for 4/4/4 GSM configuration

•1 x FPAA (AC/DC rectifiers)

•3 x FPBA (Lithium-Ion batteries)

About 30 minutes back up

Note:

FPAA supports voltage range 184 … 276 VAC

FPAA supports voltage range 0 … 276 VAC with FPBA


• Optional DC/DC converts from external 24V DC to internal 48V DC• 1 DC-DC module gives up to 2kW power, e.g. 2 DC-DC modules

are required for 12 TRX configuration• Useful in swap-out scenarios

48V DC output

24V DC input

Flexi Multiradio BTS GSM/EDGE Power OptionFlexi Power DC/DC 24V Sub-Module (FPDA, 2HU)


Flexi Multiradio BTS GSM/EDGE Power Option Flexi Power Rectifier (FPRA) (1/5)

• FPRx Flexi Power Rectifier– is a common rectifier solution for all Flexi BTS based platforms

– equal to Flexi module (3U) dimensions and mounting options supporting platform modularity

• Single FPRx output power scaleable up to 6kW– Up to three 2kW modules / FPRx

– Up to three FPRx’s can be chained

• FPRx is only a rectifier and no space for batteries inside– Batteries can be either inside FCOA/FCIA or in a separate battery box


IP54 Rectifier Module

IP54 Controller Module (delivered with casing)

FPRA with/without Flexi covers (FMCA)

Casing with integrated DC distribution for rectifiers (provides IP55 protection to controller and rectifier modules when fitted with Flexi covers)

Flexi Multiradio BTS GSM/EDGE Power OptionFlexi Power Rectifier (FPRA) (2/5)



FPRx + batteries

• New rectifier module fitting both cabinet and stack installations

• AC connection either single or three phase• Operating temperature range -35 to +55C• Wide operating voltage range from 85 to 310VAC• FPRx includes DC connection points for

– Max 2 BTSs and 3 battery strings No space for batteries inside FPRx

• Same module for both indoor and outdoor applications

Rectifiers 1…3pcsCable inlets/outlets

DC-distribution

Controller



• AirCon cooled bare battery cabinet– Tall cabinet for up to 4 battery strings (á 170Ah)

– Small cabinet for up to 2 battery strings (á 170Ah)

• Extended battery lifetime– Thermal lifetime maintained on +20C level up to +55C ambient

• Minimum heat dissipation inside => optimized AirCon– Minimized power consumption, <140W @ +55C ambient

– Typical <40W @ +35C ambient

– Advanced control unit with ‘eco switch’ to optimize power consumption

• FPRx installation top of the cabinet

• Flexi BTS module mounting option on cabinet side walls

FPRx

FPRx

FPRx with Cooled Battery Cabinet


FCSA

Any 3rd party 19” ID cabinet Wall/Pole installation Stack installation

Flexi OD cabinet: FPRA inside FCSA

Flexi ID cabinet UltraSite ID/OD cabinet

(sidewall mounting)

Flexi OD cabinet: FPRA outside FCSA

Together with battery box

(Floor/wall/stack)

UltraSite ID cabinet

(roof mounting)

Flexi Multiradio BTS GSM/EDGE Power OptionFlexi Power Rectifier (FPRA) (5/5)– Targeted Applications

Documents

01 CT10781EN01GLA0 Flexi Multiradio Prod Ovr Modules