Nokia UltraSite WCDMA BTS Optima Compact (WREB), BTS Description

BTS Description

dn0576678Issue 2-0 en

# Nokia Corporation 1 (65)

00039220Nokia UltraSite WCDMA BTS Optima CompactOutdoor (WREB)

The information in this documentation is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia's customers only for the purposes of the agreement under which the documentationis submitted, and no part of it may be reproduced or transmitted in any form or means without theprior written permission of Nokia. The documentation has been prepared to be used byprofessional and properly trained personnel, and the customer assumes full responsibility whenusing it. Nokia welcomes customer comments as part of the process of continuous developmentand improvement of the documentation.

The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products cannot be considered binding butshall be defined in the agreement made between Nokia and the customer. However, Nokia hasmade all reasonable efforts to ensure that the instructions contained in the documentation areadequate and free of material errors and omissions. Nokia will, if necessary, explain issueswhich may not be covered by the documentation.

Nokia's liability for any errors in the documentation is limited to the documentary correction oferrors. NOKIA WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL(INCLUDING MONETARY LOSSES), that might arise from the use of this documentation or theinformation in it.

This documentation and the product it describes are considered protected by copyrightaccording to the applicable laws.

NOKIA logo is a registered trademark of Nokia Corporation.

Other product names mentioned in this documentation may be trademarks of their respectivecompanies, and they are mentioned for identification purposes only.

Copyright Nokia Corporation 2005. All rights reserved.

2 (65) # Nokia Corporation dn0576678Issue 2-0 en

BTS Description

Contents

Contents 3

1 CE marking 5

2 UL marking 7

3 UltraSite WCDMA BTS product family 9

4 Operation 114.1 RAN interfaces 114.1.1 Nokia UltraSite WCDMA BTS in Radio Access Network 124.2 Nokia UltraSite WCDMA BTS architecture 164.3 Internal BTS signalling 17

5 Transmission 195.1 Transmission interfaces 195.2 Network topologies 20

6 Related software 236.1 Local management 236.2 Configuration management 246.3 Software updates 256.4 External alarms and controls 25

7 Cabinet construction 277.1 Nokia UltraSite WCDMA BTS Supreme Indoor construction 277.2 Nokia UltraSite WCDMA BTS Supreme Outdoor construction 297.2.1 Noise Reduction Kit 317.3 Nokia UltraSite WCDMA BTS Optima Indoor construction 327.4 Nokia UltraSite WCDMA BTS Optima Compact Outdoor construction 337.4.1 Cabinet Core 34

8 Units 378.1 Unit availability 378.2 RF units 488.2.1 Transmitter and Receiver unit 488.2.2 Power Amplifier unit 508.2.3 Input Combiner 518.2.4 Output Combiner 518.2.5 Antenna Filter unit 518.3 Baseband units 518.3.1 Summing and Multiplexing unit 528.3.2 Signal Processing unit 528.3.3 Application Manager unit 528.4 Transmission units 538.4.1 Transmission Interface unit 538.4.2 ATM Cross-connection unit 548.4.3 AXC Compact (AXCC/AXCD) 55



Contents

8.5 Common units 558.5.1 System Clock unit 558.5.2 Power Supply unit 558.5.3 External Alarm unit 568.5.4 IBBU (Integrated Battery Backup) system 568.6 Temperature control system 578.7 Optional items 57

9 GSM co-siting 61


BTS Description

1 CE marking

Figure 1. CE marking

Hereby, Nokia Corporation declares that this Nokia Base Station is in compliancewith the essential requirements and other relevant provisions of Directive: 1999/5/EC.

0523DN02246819



CE marking


BTS Description

2 UL marking

Figure 2. UL marking



UL marking


BTS Description

3 UltraSite WCDMA BTS product familyNokia UltraSite WCDMA BTS is a 3G wireless communication solution,designed to meet the demand for increased data and voice coverage. Advancedfeatures - such as high carrier capacity, wide coverage per site, Nokia SmartRadio Concept (SRC), and the optional Masthead Amplifier (MHA) - mean thatfewer sites are needed to build a complete 3G network.

The solution includes the following Nokia UltraSite WCDMA BTS products (seethe figure below):

. Nokia UltraSite WCDMA BTS Optima Indoor

. Nokia UltraSite WCDMA BTS Optima Compact Outdoor

. Nokia UltraSite WCDMA BTS Supreme Indoor

. Nokia UltraSite WCDMA BTS Supreme Outdoor

Figure 3. Nokia UltraSite WCDMA BTS Optima Indoor, Optima CompactOutdoor, Supreme Indoor, and Supreme Outdoor



UltraSite WCDMA BTS product family

Nokia UltraSite WCDMA BTS Supreme Indoor, Supreme Outdoor, and OptimaCompact Outdoor cabinets can be configured to hold up to 12 WCDMA carriersand Nokia UltraSite WCDMA BTS Optima Indoor cabinet up to 6 WCDMAcarriers.

There can be up to 18 Signal Processor Units (WSPs) in Supreme Indoor andSupreme Outdoor cabinets and 12 in Optima Indoor and Optima CompactOutdoor cabinets. WSP units are available in 16, 32, and 64 HW channelversions.

Each base station in the Nokia UltraSite WCDMA BTS product family is easy toinstall, commission, and maintain. Efficient use is made of existing antennasystems, and Nokia UltraSite WCDMA BTSs fit into the corresponding NokiaTalk-family and Nokia UltraSite EDGE BTS footprints. In general, specialattention has been paid to co-siting with existing GSM/EDGE equipment andutilising existing infrastructure.


BTS Description

4 Operation4.1 RAN interfaces

WCDMA technology is used on the air interface to build 3rd generation wirelesscommunication systems. Nokia provides a 3GPP compliant system for thistechnology, see the figure below. In this system, the Radio Access Network(RAN) forms an integrated entity which includes Base Stations (BTSs), RadioNetwork Controller (RNC) and Cellular Transmission (CT).

Figure 4. WCDMA and GSM/EDGE network including GPRS

BSS+RAN

GSM/EDGEBTS

BSC

WCDMABTS RNC

(WCDMA)

MSC HLR

MGW

IN Service Control Point

Landline NW(PSTN/ISDN)Landline NW(PSTN/ISDN)

GSM/EDGEmobile

GSM/WCDMAmobile

Base StationController (GSM)

Abis Network Subsystem(GSM)

Internet(TCP/IP)InternetTCP/IP

Packet Subsystem

SGSN

GGSN

MSCHLR

A

A

lub lu

SIMcard



Operation

Nokia has planned its whole WCDMA infrastructure with the existing mobilenetworks in mind. This means that co-siting with existing GSM/EDGEequipment and utilisation of existing infrastructure have been the key drivers instandardisation and BTS design. Special attention has been paid to areas likeATM/IP transmission, antenna system implementation, power systems, fast roll-out and utilisation of existing BTS sites.

Nokia UltraSite WCDMA BTS is the key element in high-capacity WCDMAnetworks, providing capacity and coverage for traditional voice applications aswell as for current and future data applications.

4.1.1 Nokia UltraSite WCDMA BTS in Radio Access Network

Nokia UltraSite WCDMA BTS is designed for 3G WCDMA coverage andcapacity solutions.

Wide-area BTS for WCDMA network

Nokia UltraSite WCDMA BTS is optimised for high-capacity, wide-coverageapplications. Nokia UltraSite WCDMA BTS features extensive coverage andmaintains high call quality solutions by combining superior receiver performancewith standard 2-way UL-diversity and the optional Masthead Amplifier (MHA).By offering various RF configurations such as configuring a BTS with up to sixsectors - with narrow beam antennas in use - further improvements to coverageand capacity can be achieved. Nokia UltraSite WCDMA BTS offers:

. Superior receiver sensitivity

. Optional Masthead Amplifier

. Support for features such as Location Services, HSDPA and Smart RadioConcept

. Support for Indoor Coverage Solutions

. Efficient power amplifiers (WPA)

. High capacity plug-in units

. Future-proof WCDMA BTS platform

. Modular architecture for easy capacity evolution

. Configurations from low to high capacity

RX performance

The minimum reference sensitivity level specified in 3GPP is -121 dBm in thestatic channel with the conditions of:


BTS Description

. 0.1 BER for 12.2 kbit/s user bit rate

. Average White Gaussian Noise (AWGN) channel type

The corresponding typical value for all Nokia WCDMA BTSs is -123.7 dBm.

Two-port receiver diversity is a standard feature for Nokia UltraSite WCDMABTS and improves the actual one branch sensitivity by 3 dB. Nokia Smart RadioConcept will bring additional 2.5 - 3 dB improvement.

Nokia UltraSite WCDMA BTSs are designed to be co-sited with Nokia GSM andNokia UltraSite EDGE BTSs. They can also be co-located with other vendors'GSM equipment.

High-capacity multimedia BTS

In order to provide high-quality solutions for the support of multimedia services,the network and its elements must provide enough capacity for voice traffic and,more importantly, must have the ability to carry very high data loads.

Nokia UltraSite WCDMA BTS Family consists of compact, high-capacity BTSswhich are perfect for supporting the capacity needed for high data speed userapplications and high volume voice service.

Nokia UltraSite WCDMA BTSs are designed for flexible expansion and easyconfiguration to support various numbers of WCDMA carriers per sector. Alsothe number of sectors (one to six) can be selected according to the availableconfigurations of the selected BTS cabinet.

A higher number of carriers can be deployed within cabinets with Rel2 HW.Nokia UltraSite WCDMA BTS Supreme Indoor and Outdoor as well as OptimaCompact contain up to 12 WCDMA carriers per BTS cabinet, while NokiaUltraSite WCDMA BTS Optima Indoor contains up to 6 WCDMA carriers percabinet.

Nokia UltraSite WCDMA BTS is a compact, high-capacity voice and data BTS.With two generations of plug-in units (Rel1 and Rel2 BTS HW) Nokia offers awide selection of upgrade paths for future capacity needs. With Rel1 HW, NokiaUltraSite WCDMA BTS Supreme Indoor and Outdoor as well as OptimaCompact can contain up to 6 WCDMA carriers per BTS cabinet, while NokiaUltraSite WCDMA BTS Optima Indoor can contain up to 3 WCDMA carriersper BTS cabinet.

There can be up to 18 Signal Processing (WSP) units in Supreme cabinets and 12in Optima Indoor and Optima Compact Outdoor cabinets. The WSP unit providesvoice or data rates from 16 kbit/s to 384 kbit/s. There are two generations also forWSP cards, Rel2 WSP cards offering higher capacity per card.



Operation

Nokia UltraSite WCDMA BTS is designed to support flexible capacity upgrades.Nokia UltraSite WCDMA BTS platform supports the future large configurationneeds from the beginning. The maximum capacity supported within one cabinetis 12 WCDMA carriers in 3, 4 or 6 sectors.

Cost-effective 3G site solution

Nokia UltraSite WCDMA BTS can provide high network capacity with aminimised number of BTS cabinets and sites. Nokia UltraSite WCDMA BTSOptima Compact is a stand-alone outdoor site solution with 12 WCDMA carriers,battery back-up and space for customer equipment (LTE) in one cabinet. Theexcellent coverage and capacity built with Nokia UltraSite WCDMA BTSsprovides a wide service area with minimised investments on new and existingsites. Nokia UltraSite WCDMA BTS is designed for easy installation,commissioning, and maintenance. Special attention has been paid to co-sitingrequirements with existing 2G equipment.

Nokia UltraSite Support family products provide battery backup and ensureuninterrupted traffic in case of a mains power failure and can be shared between2G and 3G BTSs. In addition, the efficient utilisation of existing antenna systemsis supported for optimised antenna line implementation.

With the versatile Nokia UltraSite transmission options, the most suitabletransmission media, capacity and network topology can be used.

Easy installation

Due to its light weight, compact size, and modular design Nokia UltraSiteWCDMA BTS has minimised site requirements.

An empty Nokia UltraSite WCDMA BTS cabinet can be easily lifted, carried,and put into place.

Nokia UltraSite WCDMA BTS cabinets can be installed side by side, in corners,and the cabinet back against a wall. Nokia UltraSite WCDMA BTS Supreme fitsinto the corresponding Nokia Talk-family and Nokia UltraSite EDGE BTSfootprints. The operator does not need to alter the previous plans for siteexpansion; the installation locations for Nokia UltraSite WCDMA BTS can bethe same that have been decided for Nokia Talk-family and Nokia UltraSiteEDGE BTSs.

Indoor installation does not require a special plinth; Nokia UltraSite WCDMABTS Supreme Indoor and Optima Indoor can be bolted directly to base.


BTS Description

Commissioning

The BTS's autodetection feature and the commissioning wizard (see the figurebelow) make commissioning and integrating Nokia UltraSite WCDMA BTS fastand easy. The commissioning wizard guides the user step-by-step through thewhole commissioning process.

At the end of the commissioning process, the commissioning wizard produces aSite Acceptance Report.

Figure 5. Commissioning wizard pages

Reliability

Nokia UltraSite WCDMA BTS is designed to meet the availability targets of thehighest standard. Simplicity and the speed of maintenance procedures are theprerequisites for reliable operation. The maintenance is improved by modularityof the equipment, automatic fault detection procedures and elimination of thedowntime by using redundancy of the units.



Operation

4.2 Nokia UltraSite WCDMA BTS architecture

In the uplink path, the BTS receives signals from the UE; in the downlink path,the BTS sends signals to the UE. Uplink and downlink signals travel through theair interface (Uu) on different frequencies, the higher frequency carryingdownlink signals.

Uplink path

The antenna picks up a signal from the UE through the air interface. The antennapasses the signal to the optional MHA and Bias-T units and further on to theantenna connectors at the BTS cabinet top. The signal then goes through theAntenna Filter Unit (WAF) to the Transmitter and Receiver Unit (WTR).

The WTR unit converts the received signal to a digital format and sends it to thebaseband unit for further processing.

The signal passes the Summing and Multiplexing Unit(s) (WSM) which providesthe so-called pooled WSP capacity feature and is then routed to the allocatedWSP unit.

The WSP sends the processed signal to the Application Manager Unit (WAM)which passes the signal to the ATM Cross-connect Unit (AXU). The AXU unitsends the signal to the Interface Unit (IFU) which then passes the signal throughthe Iub interface to the RNC.

Downlink path

The RNC receives a signal from the network and sends the signal to the IFU unitthrough the Iub interface. The IFU unit passes the signal to the AXU unit. TheAXU unit then switches the signal to the allocated WAM unit for ATMtermination. The WAM unit unpacks the ATM frame and sends the signal to theallocated WSP unit for digital processing. The WSP unit sends the processedsignal to the WTR unit via the WSM unit(s).

In the WTR unit, the signal is converted from digital to analog and modulated tothe carrier frequency. The WTR unit then sends the signal to the Power AmplifierUnit (WPA) through a WIC unit. WPA amplifies the TX RF-signal to the finalRF-power level. The WAF unit sends the signal to the antenna connectors at theBTS cabinet top. The signal then goes through the optional Bias-T and MHAunits to the antenna which passes the signal through the air interface to the UE.

See the diagram below.


BTS Description

Figure 6. WCDMA BTS architecture with 12 carriers

4.3 Internal BTS signalling

Buses on the Nokia UltraSite WCDMA BTS backplane and cables carry signalsbetween the internal BTS units.

WAF

WTRB

WPA

WSPC

WAM

DSC-BUS

IFU

AXU

WCI

Iub

CarrierInterface

R-busT-bus

RR-bus

ST-busSR-bus

WSC

MAIN

WSC

REDU

DN02213197

WAF

WTRB

WPA

RT-bus

WSPC

WSPC

WSPC

WSPC

WSPC

WAM

WAF

WTRB

WPAWSPC

WAM

DSC-BUS

R-busT-bus

RR-bus

WAF

WTRB

WPA

RT-bus

WSPC

WSPC

WSPC

WSPC

WSPC

WAM

WAF

WTRB

WPA

WSPC

WAM

DSC-BUS

R-busT-bus

RR-bus

WAF

WTRB

WPA

RT-bus

WSPC

WSPC

WSPC

WSPC

WSPC

WAM

WSMB

WSMB

WSMB

Air IF



Operation

The table below lists the BTS buses and their functions.

Table 1. Nokia UltraSite WCDMA BTS buses

Bus Function

CIF Carrier Interface between the WAM unitand AXC node. It carries user data, userrelated signalling, and O&M informationfrom the RNC/NetAct.

CLK Clock and Synchronisation Interface. Itprovides frequency reference, opera-tional clocks, and other timing signals forthe use of other units in the BTS.

R-BUS Receive Bus. It delivers samples re-ceived from the WSM unit to a maximumof 6 WSP units.

SR-BUS Sector Receive Bus. It receives samplesfrom adjacent WSM units and forwardsthem to the R-BUS.

RR-BUS Radio Receive Bus. It delivers the mainand diversity signal in digital form to theWSM unit for further distribution.

T-BUS Transmit Bus. It carries summed andspread signals from the WSP unit to theWSM unit.

ST-BUS Sector Transmit Bus. It delivers data in-tended for transmission in adjacent sec-tors to adjacent WSM units.

RT-BUS Radio Transmit Bus. The WSM unitcomposes the complete carrier datafrom the input from its own and adjacentsectors and forwards the resulting bit-stream to the WTR unit via the RT-BUSfor modulation and upconversion.

DSC-BUS Data, Signalling, and Control Bus. Alluser data and signalling is carried viathis interface from the WAM unit to theWSP units.


BTS Description

5 Transmission5.1 Transmission interfaces

Transmission functionality is integrated in the WCDMA BTS. The transmissionbetween the RNC and the BTSs (Iub interface) is based on ATM. It is possible touse the already available PDH or SDH based transmission networks (for exampleE1, STM-1 and so on). The WCDMA ATM Iub traffic can be transported overthe existing transmission systems by using inverse multiplexing (IMA). IMAcombines 2/1.5/6.3 Mbit/s connections to one ATM connection, and vice versa.There is no immediate reason to change or modify the existing access network,except for the necessary capacity upgrades due to increased traffic. The RAN(BTS-RNC) transmission can be based on star, chain, tree, and loop topologies.

The physical transmission links can be shared between the WCDMA generatedtraffic and the second generation mobile traffic and fixed traffic.

Each Nokia UltraSite WCDMA BTS has an integrated ATM switch, called theATM Cross-connect (AXC) Node, for communication between the sectors insidethe BTS, towards the RNC, and towards other BTSs. The AXC is constructed ofone AXU unit and 1 to 5 Interface Units (IFUs).

The AXU unit performs the main ATM functionality for the communicationwithin the BTS and provides the connections to other network elements. TheIFUs provide the physical connection to the network.

The IFUs currently available for Nokia UltraSite WCDMA BTS are the IFUs A/C/D and E. They support the following transmission interfaces, respectively:

. E1/JT1

. STM-0/STM-1

. E1

. Nokia Flexbus



Transmission

There are 5 slots for IFUs available in Nokia UltraSite WCDMA BTS SupremeIndoor and Supreme Outdoor and 3 slots in Nokia UltraSite WCDMA BTSOptima Indoor and Optima Compact Outdoor. The maximum possible number ofinterface connections available for each Nokia UltraSite WCDMA BTS is shownin the table below.

Table 2. Maximum possible number of interfaces for Nokia UltraSiteWCDMA BTSs

Supreme Indoor/Outdoor Optima Indoor/Optima CompactOutdoor

40 E1/JT1 interfaces with IMA32 E1/JT1 interfaces without IMA

24 E1/JT1 interfaces with/without IMA

15 STM-0 interfaces 9 STM-0 interfaces

8 STM-1 interfaces 8 STM-1 interfaces

15 Flexbus interfaces 9 Flexbus interfaces

5.2 Network topologies

Nokia UltraSite WCDMA BTS supports point-to-point, star, chain, tree, and loopnetwork topologies. The choice of a network topology depends mainly on therequirements for transmission media and availability.

The star and chain configurations are illustrated in the Nokia UltraSite star andchain configurations diagram.


BTS Description

Figure 7. Nokia UltraSite star and chain configurations

The loop configuration is illustrated in the Nokia UltraSite loop configurationdiagram.

Star configuration

Chain configuration

RNC (typical)

BTS (typical)

DN02208818



Transmission

Figure 8. Nokia UltraSite loop configuration

RNC (typical)

BTS (typical)

DN02208821


BTS Description

6 Related software6.1 Local management

Element manager SW is used for managing Nokia UltraSite WCDMA BTScommissioning, supervision, maintenance, and testing, as well as transmissionconfiguration. The element manager SW includes Nokia WCDMA BTS Manager(see the figure below) and AXC Manager for transmission management. They areintegrated so that the physical interface (cable and connectors) are the same, butthere are two different applications running on the PC.

The Manager PC is connected to the BTS by means of an Ethernet connection.



Related software

Figure 9. Nokia WCDMA BTS Manager

Both Nokia WCDMA BTS Manager and AXC Manager run in NT, Windows 95,Windows 98, or Windows 2000 environment.

6.2 Configuration management

Once the BTS is in normal operation, a polling process is used to check thepossible changes in the BTS configuration. The information in the HW databasechanges when units are added or removed from the BTS.

If the initially detected units do not respond to the normal autodetection polling,they are reported to be faulty.


BTS Description

6.3 Software updates

Nokia UltraSite WCDMA BTS can store two SW packages in its memory. SWcan be loaded either locally with the element manager SW, or remotely from theRNC or Nokia NetAct (via the RNC).

Local SW downloading is typically done only when Nokia NetAct connectionis missing, that is, during the commissioning. Nokia UltraSite WCDMA BTS SWcan be downloaded as a background operation without interrupting the BTSoperation. The new SW can be activated at any time suitable for the operator.

Only downloadable SW is used in Nokia UltraSite WCDMA BTS. The SW canbe downloaded and updated from Nokia NetAct. This procedure is centralised,which means that several BTSs can be upgraded with the new SW eithersimultaneously or one by one.

Nokia UltraSite WCDMA BTS keeps the current and a previous SW package inits flash memory. In the case of, for example, a power cut, the current SWpackage will be brought into use from the flash memory in a few seconds.

6.4 External alarms and controls

The BTS inputs and outputs can be configured and tested locally on the NokiaUltraSite WCDMA BTS site with the element manager SW. There are 24 user-definable external inputs and 6 user-controllable outputs available. These can befreely configured to support different observation or control needs at the BTSsite.

In normal operation, the BTS's external alarms and control outputs are managedfrom Nokia NetAct after they have been configured.



Related software


BTS Description

7 Cabinet construction7.1 Nokia UltraSite WCDMA BTS Supreme Indoor

construction

The Nokia UltraSite WCDMA BTS Supreme Indoor (WINB) cabinet comes as asingle delivery. It does not consist of a separate core and Indoor kit.

The diagrams below illustrate Nokia UltraSite WCDMA BTS Supreme Indoor(WINB).



Cabinet construction

Figure 10. Nokia UltraSite WCDMA BTS Supreme Indoor (WINB)

DN0484647


BTS Description

Figure 11. Cabinet core of Nokia UltraSite WCDMA BTS Supreme Indoor(WINB)

7.2 Nokia UltraSite WCDMA BTS Supreme Outdoorconstruction

Nokia UltraSite WCDMA BTS Supreme Outdoor is a free-standing cabinetstructure with sub-racks and blanco panels. It is meant for outdoor environmentalconditions as explained in Nokia UltraSite WCDMA BTS Supreme OutdoorRequirements for Installation and Operation.

The diagrams below illustrate Nokia UltraSite WCDMA BTS Supreme Outdoor.

DN04105711




Figure 12. Nokia UltraSite WCDMA BTS Supreme Outdoor

DN02208857


BTS Description

Figure 13. Cabinet core of Nokia UltraSite WCDMA BTS Supreme Outdoor

7.2.1 Noise Reduction Kit

Nokia UltraSite WCDMA BTS Supreme Outdoor can be fitted with an optionalNoise Reduction Kit which provides sound-proofing for the BTS. It can be fittedto the BTS when installing the cabinet or afterwards at the site. For theinstallation instructions of the Noise Reduction Kit, see Nokia UltraSiteWCDMA BTS Supreme Outdoor Cabinet Installation.

DN4111962




7.3 Nokia UltraSite WCDMA BTS Optima Indoorconstruction

Nokia UltraSite WCDMA BTS Optima Indoor is a free-standing cabinet structurewith sub-racks and blanco panels. It is meant for indoor environmental conditionsas explained in Nokia UltraSite WCDMA BTS Optima Indoor Requirements forInstallation and Operation.

The diagrams below illustrate Nokia UltraSite WCDMA BTS Optima Indoor.

Figure 14. Nokia UltraSite WCDMA BTS Optima Indoor

DN02208869


BTS Description

Figure 15. Cabinet core of Nokia UltraSite WCDMA BTS Optima Indoor

7.4 Nokia UltraSite WCDMA BTS Optima CompactOutdoor construction

Nokia UltraSite WCDMA BTS Optima Compact Outdoor is a free-standingcabinet. It is meant for outdoor environmental conditions as explained in SectionClimatic operating Conditions in Requirements for Installation and Operation.Three cabinet types are available.

Nokia UltraSite WCDMA BTS Optima Compact Outdoor offers:

. Additional space for 4 HU LTEs for all RF configurations

. Integrated transmission solution

. Optional IBBU for all RF configurations

DN04111959




The diagram below illustrates Nokia UltraSite WCDMA BTS Optima CompactOutdoor.

Figure 16. Nokia UltraSite WCDMA BTS Optima Compact Outdoor (WREB)

7.4.1 Cabinet Core

The cabinet core of the Nokia UltraSite WCDMA BTS Optima Compact Outdoorcomes in three different versions:

. Core with 54Ah battery backup

. Core with 90Ah battery backup

. Core with full RF and external DC power supply

The diagram below illustrates Nokia UltraSite WCDMA BTS Optima CompactOutdoor.

DN04112728


BTS Description

Figure 17. Cabinet core of Nokia UltraSite WCDMA BTS Optima CompactOutdoor (WREB)

Depending on the choice of cabinet core, Nokia UltraSite WCDMA BTS OptimaCompact Outdoor has a different overall specification and supports differentconfigurations of plug-in units.

DN04112731





BTS Description

8 Units8.1 Unit availability

The table below defines the maximum number of units/modules supported foreach Nokia UltraSite WCDMA BTS.

Table 3. Maximum number of units/modules for Nokia UltraSite WCDMABTSs

Unit SupremeIndoor

SupremeOutdoor

OptimaIndoor

OptimaCompactOutdoorfull RFcabinetwithexternalDC supply

OptimaCompactOutdoorwith 54AhIBBUsystem


Transmitter andReceiver Unit(WTR)

WTRA

WTRB

WTRD

n/a6

6

6

6

6

3

3

3

n/a6

6

n/a6

6

n/a3

3

Power AmplifierUnit (WPA)



Units

Table 3. Maximum number of units/modules for Nokia UltraSite WCDMABTSs (cont.)

Unit SupremeIndoor

SupremeOutdoor

OptimaIndoor




WPAA (AC)WPAB (DC)WPAC (AC)WPAD (DC)WPAI (AC)WPAJ (DC)WPAK (DC)

6

6

6

6

6

6

6

6

6

6

6

6

6

6

3

3

3

3

3

3

3

n/a6

n/a6

n/a6

6

n/a6

n/a6

n/a6

6

n/a3

n/a3

n/a3

3

Input CombinerUnit (WIC)

3 3 2 3 3 3

Output CombinerUnit (WOC)

3 3 1 3 3 1

Antenna FilterUnit (WAF)

6 6 3 6 6 3

Summing andMultiplexing Unit(WSM)

WSMAWSMB

n/a3

3

3

2

2

n/a3

n/a3

n/a2

Signal ProcessorUnit (WSP)

WSPAWSPC

n/a18

18

18

12

12

n/a12

n/a12

n/a12

Application Man-ager Unit (WAM)

6 6 4 4 4 4

Interface Unit(IFU)

5 5 3 3 3 3


BTS Description


Unit SupremeIndoor

SupremeOutdoor

OptimaIndoor




ATM Cross-con-nect Unit (AXU)

2 2 2 2 2 2

AXC Compact(AXCC/D)Note: If theAXCC/D unitsare in use, otherIFUs cannot beused.

2 2 2 2 2 2

System ClockUnit (WSC)

2 2 2 2 2 2

Power SupplyUnit (WPSx)

WPSA (AC)WPSB (DC)WPSE (DC)

3

n/a3

3

3

3

2

2

2

n/an/a2

n/an/a2

n/an/a2

Subrack coolingfan unit

WFA

MFUA

2

n/a4

n/a3

n/an/a3

n/a3

n/a3

Clock interfaceunit (WCI)

1 1 1 1 1 1

External alarmunit (WEA)

1 1 1 1 1 1

Smoke detector n/a 1 (Option) n/a 1 (Option) 1 (Option) 1 (Option)

Noise reductionkit

n/a 1 (Option) n/a 1 (Option) 1 (Option) 1 (Option)



Units


Unit SupremeIndoor

SupremeOutdoor

OptimaIndoor




Heater n/a 1 (Option) n/a 1 (Option) 1 (Option) 1 (Option)

Rectifier n/a n/a n/a n/a 4 (housed inthe PDU)

4 (housedin the PDU)

Power Distribu-tion Unit (PDU)

n/a n/a n/a n/a 1 1

Line TerminalEquipment (LTE)

n/a n/a n/a 4 x 1 HU 4 x 1 HU 4 x 1 HU

Battery string n/a n/a n/a n/a 3 5

Q1 adapter n/a n/a n/a n/a 1 (Option) 1 (Option)

Dust filter n/a n/a n/a 1 (Option) 1 (Option) 1 (Option)

The table below lists the unit dimensions and maximum power consumption.

Table 4. Unit dimensions and maximum power consumption

Unit Height Width Depth Weight Maximum powerconsumption

WAFx 190 mm

(7.48 in.)Max. 83.3 mm

(3.28 in.)250 mm

(9.84 in.)Max. 5 kg(11.05 lbs.)

7 W

WAMA 233.35 mm

(9.19 in.)1.8 mm

(0.07 in.)280 mm

(11.02 in.)Approx. 0.5kg(1.10 lbs.)

28 W


BTS Description

Table 4. Unit dimensions and maximum power consumption (cont.)


WICA 282 mm(11.10 in.)

24.5 mm

(0.96 in.)284.4 mm (+guide pin 35mm)(11.2 in. +guide pin1.38 in.)

Max. 1.8 kg(3.98 lbs.)

4 W

WOCx - - - Max. 300 g(662.85 lbs.)

-

WPAx 405 mm

(15.94 in.)80 mm

(3.15 in.)355 mm (+guide pin 35mm)(13.98 +guide pin1.38 in.)

Max. 13 kg(28.72 lbs.)

Max. power consumptionbetween 250 W - 605 W,depending on the version.

WPDA/B 425 mm(16.73 in.)

80 mm

(3.15 in.)390 mm

(15.35 in.)Approx. 1.4kg(3.09 lbs.)

-

WPSA/E 262 mm(10.31 in.)

70.8 mm

(2.79 in.)298.4 mm

(11.75 in.)WPSA: < 6.5kg(< 14.36 lbs.)WPSE: < 5.4kg(< 11.93 lbs.)

-

WSCA 93 mm(3.66 in.)

30 mm

(1.18 in.)180.4 mm

(7.10 in.)Max. 500 g1.10 lbs.)

3 W

WSMB 233 mm(9.17 in.)

20 mm

(0.79 in.)280 mm

(11.02 in.)500 g1.10 lbs.)

8 W

WSPC 268 mm(10.55 in.)

20 mm

(0.79 in.)323 mm

(12.72 in.)600 g(1.33 lbs.)

14 W

WTRA/B/C 245 mm (frontplate 262mm)(9.65 in. frontplate 10.31in.)

68 mm

(2.68 in.)290 mm

(11.42 in.)Max. 4 kg8.84 lbs.)

50 W



Units

Table 4. Unit dimensions and maximum power consumption (cont.)


WTRD 245 mm (frontplate 262mm)(9.65 in. frontplate 10.31in.)

50 mm

(1.97 in.)290 mm

(11.42 in.)Max. 2.3 kg(5.1 lbs.)

19 W

PDU(WPUB/WPUC)

3U 448 mm

(17.64 in.)320 mm(WPUB)(12.60 in.)330 mm(WPUC)(12.99 in.)

- 11 W

Rectifier(WPMB,WPMC)

41.5 mm

(1.63 in.)214 mm

(8.43 in.)258 mm

(10.16 in.)WPMB < 2.9kg(< 6.41 lbs.)WPMC < 2.4kg(< 5.30 lbs.)

-

For information on IFU and AXU unit descriptions, see AXC ProductDescription.

The diagram below illustrates the units in Nokia UltraSite WCDMA BTSSupreme Indoor.


BTS Description

Figure 18. Nokia UltraSite WCDMA BTS Supreme Indoor with units

WAF = AntennaFilter

WPA = PowerAmplifier

WTR = Transmitterand Receiver

WIC = InputCombiner

IFU = TransmissionInterface

AXU = ATMCross-connection

WSC = SystemClock

WPS = PowerSupply

WAM = ApplicationManager

WSP = SignalProcessing

WSM = Summingand Multiplexing

WFA = SubrackCooling Fan

WEA = ExternalAlarm

DN04105392



Units

The diagram below illustrates the units in Nokia UltraSite WCDMA BTSSupreme Outdoor.

Figure 19. Nokia UltraSite WCDMA BTS Supreme Outdoor with units

WAF = AntennaFilter

WPA= PowerAmplifier

WTR= Transmitterand Receiver WIC = Input

Combiner

IFU= TransmissionInterface


WSC= SystemClock

WPS= PowerSupply




WFA = SubrackCooling Fan

WEA = ExternalAlarm

3G LMU= 3G LocationMeasurement Unit

DN7053603


BTS Description

This diagram illustrates the units in Nokia UltraSite WCDMA BTS OptimaIndoor.

Figure 20. Nokia UltraSite WCDMA BTS Optima Indoor with units

The diagram below illustrates the units in Nokia UltraSite WCDMA BTS OptimaCompact Outdoor with 54Ah battery backup.

WAF = AntennaFilter

WPA= PowerAmplifier

WTR= Transmitterand Receiver

WIC = InputCombiner

IFU= TransmissionInterface


WSC=System Clock

WPS=Power Supply




WFA= SubrackCooling Fan

WEA= ExternalAlarm

3G LMU= 3G LocationMeasurement Unit

DN7053615



Units

Figure 21. Nokia UltraSite WCDMA BTS Optima Compact with 54Ah batterybackup

The diagram below illustrates the units in Nokia UltraSite WCDMA BTS OptimaCompact Outdoor with 90Ah battery backup.

WAF = AntennaFilter



WSC = System Clock

WPS = Power Supply



WSM = Summing andMultiplexing

WEA = External Alarm



WIC = InputCombiner

MFUA =MultimodeFan Unit

Door alarm

LTE = Line TerminalEquipment

Rectifier

PDU

Battery

CU= Controller Unit

DN01197221


BTS Description

Figure 22. Nokia UltraSite WCDMA BTS Optima Compact with 90Ah batterybackup

The diagram below illustrates the units in Nokia UltraSite WCDMA BTS OptimaCompact Outdoor with full RF and external DC power supply.

WAF = AntennaFilter



WSC = System Clock

WPS = Power Supply






WTR =Transmitterand Receiver

WIC = InputCombiner

MFUA =MultimodeFan Unit

Door alarm


Rectifier

PDU

Battery

Battery

CU = Controller Unit

DN00275125



Units

Figure 23. Nokia UltraSite WCDMA BTS Optima Compact with full RF andexternal DC power supply

8.2 RF units

This section describes the RF units that are available for Nokia UltraSiteWCDMA BTSs.

8.2.1 Transmitter and Receiver unit

Note

WAF = AntennaFilter



WSC = System Clock

WPS = Power Supply







WIC = InputCombiner

MFUA = MultimodeFan Unit

Door alarm


DN042412


BTS Description

Nokia UltraSite WCDMA BTS Optima Compact Outdoor (WREB) and SupremeIndoor (WINB) use only Rel2 units.

Transmitter and Receiver unit, WTRA (Rel1)

On the transmit side, the WCDMATransmitter and Receiver unit (WTR) receivesdigital data from the Signal Processing unit (WSP) via the Summing andMultiplexing unit (WSM) and performs modulation and up conversion of thecarrier, which is amplified by the Power Amplifier (WPA). On the receive side,the WTR performs channel selection and down conversion for the selectedcarrier. The received signal is digitised and connected to the WSP via the WSM.The main features of the WTRA unit are:

. Two receivers (RX1 and RX2) and one transmitter (TX1)

. RX band 1920-1980 MHz and TX band 2110-2170 MHz (duplexseparation of 190 MHz)

. Implementation from baseband to the RF in TX and from RF to basebandin RX

. Digital IF sampling with 61.44 MHz clock

. Internal VCXO for high quality clock reference

Transmitter and Receiver unit, WTRB (Rel2)

The Rel2 WTR unit (WTRB) offers double the capacity of the Rel1 WTR unit(WTRA). It contains two separate TRXs that can be used independently fromeach other. TRXs of the WTRB can operate on the same frequency or, ifnecessary, on different frequencies. The unit offers also combined output (TX1 +TX2).

WTRAs and WTRBs can be used in the same cabinet. The features of the WTRBare the following:

. Two independent diversity receivers, each consisting of two RX pathsresulting in a total of four RX paths (RXM1, RXD1, RXM2 and RXD2),and two independent transmitters (TX1 and TX2)

. RX band 1920-1980 MHz and TX band 2110-2170 MHz, duplexseparation of 190 MHz (WTRB can support also variable duplexseparation)

. Implementation from baseband to RF in TX and from RF to baseband inRX



Units

. IF sampling with 61.44 MHz clock (RX)

. Internal VCXO for high quality clock reference

Transmitter and Receiver unit, WTRD

The WTRD unit is a 2100 MHz frequency variant. WTRD provides RF functionsfor two carriers. The features of the WTRD are the following:

. Two independent TX paths (TX1 and TX2)

. Four RX paths, two-diversity path (RXM1, RXD1, RXM2, and RXD2)

. Digital dual carrier combining (in TX side) and and the sum signal isavailable from TX1 connector. In digital dual carrier case the channelspacing is 5 MHz.

. RX band 1920-1980 MHz, TX band 2110-2170 MHz, duplex separation of190 MHz

. Only one TCP/IP address, sub-addresses are used to route messages on theunit

The WTRD also provides capability for the RF-test loop. The main function ofthe loop is to provide self-test functionality for the WTRD unit. This is performedby looping back the transmitter signal to the receivers. Only fixed transmit toreceive frequency separation is supported.

8.2.2 Power Amplifier unit

The Power Amplifier unit (WPA) provides linear amplification to WCDMAcarriers with a constant power gain of 40 dB (WPAA/B) or 43 dB (WPAC/D/K).The WPAA/B/C/D amplifier is capable of supporting up to four adjacent carriersin any 20 MHz section on the whole 60 MHz WCDMA allocation. The WPAKamplifiers support up to two carriers in 15 MHz occupied bandwidth. There are30 W WPA units (WPAA/B/I/J) and 54 W WPA units (WPAC/D/K).

The EEWPA (WPAI/J) is an efficiency enhanced version of the 30 W WPA. TheEEWPA supports up to two adjacent carriers in 10 MHz bandwidth on the whole60 MHz WCDMA allocation and can be used in all Rel2 HW configurations.

To increase output power, two power amplifiers can be combined parallel byusing the Input Combiner Unit (WIC) at the WPA input and the Output CombinerUnit (WOC) at the WPA output. 54 W versions cannot be combined parallel.

All versions of the WPA and EEWPA can be used with a Wideband PowerDivider unit (WPD) to divide output power to more than one sector (ROCconfigurations).


BTS Description

Note

Nokia UltraSite WCDMA BTS Optima Compact Outdoor (WREB) uses only theDC version of the WPA unit.

8.2.3 Input Combiner

The Input Combiner (WIC) unit connects output signals from the WTR unit to theWPA inputs. The 1900/2100 MHz variants use only A.205 or a later version ofthe WIC unit.

8.2.4 Output Combiner

2100 MHz variant: The Output Combiner (WOC) connects output signals fromtwo WPAs to one Antenna Filter unit.

8.2.5 Antenna Filter unit

The Antenna Filter (WAF) combines and isolates TX/RX signals and amplifiesreceived signals. The unit contains a receiver multicoupler with four outputs formain branch and four outputs for diversity branch. The unit also has an RFMonitoring port for TX signal monitoring.

The WAF is capable of feeding operating power to two Nokia UltraSite WCDMAMasthead Amplifier (MHA) units.

8.3 Baseband units

Note

Nokia UltraSite WCDMA BTS Optima Compact Outdoor (WREB) and SupremeIndoor (WINB) use only Rel2 units.



Units

8.3.1 Summing and Multiplexing unit

The Wideband Summing and Multiplexing unit (WSM) sums the TX signalsfrom the Signal Processing units (per antenna) or other WSMs to its own TXsignal, and routes and sums the TX data to the appropriate WTRs. RX data isrouted through the same path, but without summing. The operating principle isthe same for both WSMA and WSMB.

Rel1 (WSMA) and Rel2 (WSMB) WSMs

In Rel2 the WSMA unit is replaced with the WSMB because the WTRB doublesthe capacity offered by the WTRA unit. This means that the data throughput ofthe WSMA has to be doubled for it to be capable of handling WTRBs. TheWSMB provides this capacity.

8.3.2 Signal Processing unit

The Signal Processing unit (WSP) performs RX and TX code channel processing,channel coding, and channel decoding functions. Summing of the TX codechannels is performed for the code channels processed in the unit. The operatingprinciple is the same for WSPA and WSPC.

Rel1 (WSPA) and Rel2 (WSPC) WSPs

In Rel2 WSPC replaces the WSPA. It offers double the capacity of WSPA, that is,64 HW channels. Rel1 and Rel2 WSP units can be used in the same cabinet fromrelease RAN'04 onwards.

8.3.3 Application Manager unit

The Application Manager unit (WAM) takes care of the control functions inNokia WCDMA BTSs, such as BTS initialisation, configuration, and O&Mfunctions. The unit also performs transport channel processing, ATM processing,telecom frame protocol handling and logical resource management.

One of the WAM units in the BTS acts as the master O&M unit and the other oneas the telecom master unit.The O&M master WAM takes care of the BTS powerup control and the control and maintenance functions during run time. Thetelecom master WAM operates as the main signalling counterpart to serve theRNC. All other WAMs perform lower level O&M and telecom functions. If thereis only one WAM unit in a BTS, it takes care of both master functions.


BTS Description

8.4 Transmission units

8.4.1 Transmission Interface unit

A variety of transmission interfaces are available to connect Nokia UltraSiteWCDMA BTS to the transmission networks. Nokia UltraSite WCDMA BTSSupreme has 5 slots and Nokia UltraSite WCDMA BTS Optima and OptimaCompact have 3 slots, which can be used for transmission interface units.

The transmission media can be wire line (E1/JT1), fibre optic cable (STM-0/1), orNokia Flexbus.

The following transmission interfaces are provided:

. 8 * E1/JT1 with IMA (JT1 = Japanese 1.5 Mbit/s PDH), 120/110

. 8 * E1, 75 with IMA

. 3 * STM-0/1 (VC3/VC4)

. 3 * Nokia Flexbus

. 1* STM-1 (VC-12)

. 8* Ethernet interfaces

With 5 interface plug-in units in one Nokia UltraSite WCDMA BTS Supremecabinet, 40 E1 connections become available per cabinet. If entirely used forSDH connections, the total of 15 STM-1 connections become available.However, the switching capacity of the AXC is up to 1.2 Gbits/s. This sets themaximum of ATM cells that can be handled.

It is possible to use Fractional E1s to add full and/or partial E1s filled withWCDMA traffic to the existing EDGE traffic without disturbing the existingEDGE traffic. Circuit Emulation Service can be used to add the EDGE traffic tothe WCDMA (ATM) traffic.

The transmission units interconnect the Nokia UltraSite WCDMA BTS and theRNC (or other BTSs) using point-to-point, chain, star, or loop networkconfigurations.

Fibre optic transmission

The following fibre optic transmission units are available for Nokia UltraSiteWCDMA BTS:



Units

. IFUC with STM-0/1 interfaces: VC3/VC4 support for fibre optic cable,signal termination, synchronisation, and a CPU circuitry for unit control.

The unit can be configured independently to STM-0 or STM-1. The unithas three STM connectors.

. IFUF with STM-1 interface: VC-12 support for fibre optic cable. The unithas one STM connector.

The IFUC and IFUF units can be connected to a microwave radio.

Ethernet interface

The IFUG interface unit provides multiple simultaneous connections (8*10Mbits/s Ethernet), that is, it connects external equipment at the site to common DCN.The connections can be utilised for the local management (LMP) of the AXU orto connect Nokia AXC Manager to an interface of the hub for local AXC/BTSmanagement. The remaining Ethernet interfaces can be used for example forNokia RealTilt RCU unit or for any other equipment that is managed via IP.

Wire line transmission

The following wire line transmission units are available for Nokia UltraSiteWCDMA BTS:

. IFUAwith E1/JT1 with IMA interfaces: 8 x 2 Mbit/s (E1) or 8 x 1.5 Mbit/s(J1) PCM connections, eight twisted pair 120/110 TX/RX interfaceconnectors. The unit can be configured either to E1 or JT1 mode.

. IFUD with E1 with IMA interfaces: 8 x 2 Mbit/s (E1) PCM connections,16 coax 75 TX/RX interface connectors.

Radio transmission

The following PDH radio transmission unit is available for Nokia UltraSiteWCDMA BTS:

. IFUE with Nokia Flexbus interface: 16 x 2 Mbit/s, three Flexbusconnectors.

The IFUE unit can be connected to Nokia FlexiHopper Microwave Radio andNokia MetroHopper Radio.

8.4.2 ATM Cross-connection unit

The ATM Cross-connection unit (AXU) is the connecting element between theApplication Managers (WAM) and the Transmission Interface Units (IFUs). TheAXU can handle ATM cross-connections at a transmission network level.


BTS Description

The AXU supports IP routing.

8.4.3 AXC Compact (AXCC/AXCD)

Nokia AXC Compact (AXCC and AXCD) is an optimized solution for tail sitesand small tree or chain topologies. It contains AXUB and IFUA/D functionalityin a single unit and it is fully integrated into the Nokia WCDMA BTSs andTriple-Mode Nokia UltraSite EDGE BTSs (with WCDMA upgrade kit). NokiaAXC Compact supports CES and BTS AAL2 multiplexing application software.AXCC provides eight symmetrical E1/JT1/T1 connections with IMA and AXCDeight coaxial E1 connections with IMA. Both units support ATM VP and VCcross-connections and their maximum switching capacity is 165 Mbit/s. NokiaAXC Compact is non-expandable, but it is possible to add IFUG interface units.

8.5 Common units

8.5.1 System Clock unit

The System Clock (WSC) performs synchronization functions and referenceclock generation for the WCDMA part of the BTS. One of the two WSCs is aredundant unit.

The System Clock unit takes its reference from the Iub.

8.5.2 Power Supply unit

The Power Supply (WPS) unit converts AC or DC power supply to the DC powervoltages needed in the BTS. In the Nokia UltraSite WCDMA BTS cabinet, therecan be up to three DC or AC power supply units.

Redundant power supply is provided as follows when at least two WPSs areinstalled:

. DC power to the clock units and to the AXU and IFU units.

The following input voltages are possible to connect to the Nokia UltraSiteWCDMA BTS cabinet:

. nominal 48 V DC power (with positive or negative grounding)

. nominal 200 to 240 V AC power



Units

If heaters are used, AC supply is also required for the BTS.

8.5.3 External Alarm unit

The External Alarm unit (WEA) performs external alarm and control functions inNokia UltraSite WCDMA BTS. There are 24 external alarm input lines and sixexternal control output lines available.

The pin configurations are compatible with Nokia UltraSite GSM solution.

8.5.4 IBBU (Integrated Battery Backup) system

IBBU is a battery backup system which is integrated in Nokia UltraSite WCDMABTS Optima Compact Outdoor. It consists of the following main elements:

PDU (Power Distribution Unit)

. AC interface

. Positive grounding

. - 48 V DC feed to the BTS

. Battery charging

. Breakers for the BTS and batteries

. LVD (Low Voltage Disconnect) function

WPM (Rectifier)

. A rectifier unit, converts 240 V AC to - 48 V DC

. Current compensation

. Output power 1500 W

CU (Control Unit)

. Controls Rectifier units & LVD

. Alarms

. LMP function (Local Management Port)

. Q1 adapter for Q1 control


BTS Description

8.6 Temperature control system

Heat Exchanger

The Heat Exchangers (WHX and WHEX) are used in Supreme Oudoor andOptima Compact Outdoor to provide cooling for baseband and transmissionunits. The WHX heat exchanger cells remove heat from the cabinet internal aircirculation to the external air circulation.

Fan module

The Fan module is a module of the cabinet core. It provides cooling to a specificsubrack in the cabinet. It brings outside air into the BTS, while exhausting warmair from the cabinet. It provides a temperature dependent, variable airflow.

The functions of the Fan module are controlled by the WAM unit.

Note

Nokia UltraSite WCDMA BTS Optima Compact Outdoor (WREB) uses aCooling Fan Unit (MFUA) for both RF and baseband subrack system.

Cabinet Fan

The Cabinet Fans provide cooling to WTR, WPA, and WPS units.

The WAM controls the fan units according to temperature information from otherunits. The cooling is performed by adjusting the rotation speed of the fans.Smooth speed variations also minimise the noise generated by the fan units.

8.7 Optional items

Heater Kit

The optional heater units are used in Nokia UltraSite WCDMA BTS Outdoorcabinets to cold start BTS operation in temperatures below -10C (14F). Theheater is designed to be installed to the system on site. In the Supreme Outdoorcabinet, heater elements are required for the RF units only. In Optima CompactOutdoor, optional heaters are available for both RF units and the batteries.



Units

Dust Filter

For Nokia UltraSite WCDMA BTS Optima Compact an optional Dust Filter(WDUA) is available for use in extreme climatic conditions where the aircontains harmful particles like dust. WDUA is located in the RF section whereambient air is used for cooling purposes. When the Dust Filter is used, themaximum ambient temperature of the BTS is reduced to +40C (104F) .

Note

The Dust Filter is not available for older versions of Nokia UltraSite WCDMABTS Optima Compact Outdoor (WREA/WBBA) or Supreme Outdoor.

Q1 adapter

The Q1 adapter, or Site Management Interface Controller, operates with theIBBU in the Nokia UltraSite WCDMA BTS Optima Compact Outdoor. Byconnecting the Power Control Unit (PCU) to the Q1 bus in the BTS, the Q1adapter interfaces the remote Local Management Port (LMP) function andAutomatic polling function to the network. The Q1 adapter also enables controlof the support system via the LMP for local management when on site.

Co-site kit

Co-Site kits are used in an outdoor situation for connecting the roof of a NokiaUltraSite WCDMA BTS Outdoor cabinet to the roof of the various otherUltraSite cabinets. It makes it possible to connect cables (DC, alarms,transmission, RF chaining, synchronisation) directly from one BTS to another.

Smoke Detector

The outdoor cabinets support optional Smoke Detector units.

OVP (Over-Voltage Protection)

Nokia UltraSite WCDMA BTSs support the optional Over-Voltage Protection.

MHA

The WCDMA Masthead Amplifier (MHA) amplifies the uplink channel tocompensate for antenna feeder line losses and balance uplink and downlinksignals. A WCDMA MHA subsystem includes an MHA unit and a Bias-T. TheBias-T supplies MHAs at the mast with DC power through the feeder cable. TheBias-T implements VSWR-monitoring of the TX power in the antenna line.


BTS Description

One WCDMA MHA system is used for each received path. Nokia supports up to12 MHAs.

Noise Reduction Kit

An optional Noise Reduction Kit is available for Outdoor BTSs to be used in siteswhere additional noise reduction is needed. The Kit can be fitted to the BTS wheninstalling the cabinet or afterwards at the site without any transmission serviceinterruptions.

The only effect on the dimensions of the cabinet will be a slight increase in depth;the height and width of the BTS remain unchanged.

Nokia RealTilt System

Nokia RealTilt is a fully integrated solution, which enables the optimisation ofWCDMA networks by adjusting antenna tilt angle remotely from the networkmanagement system.

Nokia RealTilt hardware consists of RealTilt Control Unit (RCU), RealTiltElectronic Tilt Adjuster (RTA), Power and control cabling, including RealTiltLightning Protection Device (RLP). The RCU provides the interface between thebase station and the RTA. The RCU unit is connected on the antenna side to RTAusing a RS485 connection and on the base station side to the Ethernet port.

The RCU can either be housed within the customer equipment space of the sitesupport cabinet, or be pole mounted or wall mounted external to the BTS byusing a weatherproof enclosure (IP67).

Nokia Advanced Indoor Radio

Nokia Advanced Indoor Radio is an innovative solution for providing seamlessindoor coverage in WCDMA networks. The system is fully integrated into theWCDMA RAN and consists of a wideband optical unit (WOU) inside the basestation and wideband remote units (WRU) distributed throughout the building.The optical unit is connected to the remote units by optical links. The WOU unitreserves one power amplifier slot in the base station. The unit is an integral part ofthe internal communication system of the base station, which means that fullO&M functionality is available without the use of any external devices.

Wideband Optical Unit (WOU) replaces Power Amplifier (WPA) in NokiaAdvanced Indoor Radio applications. One WOU unit reserves one WPA slotinside Nokia UltraSite WCDMA BTS. One WOU supports up to three WidebandOptical Modules (WOM) that are plugged to a WOU unit. WOM unit containsthe BTS end of the optical links between the base station and the remote units.One WOM supports up to four wideband remote units.



Units

Wideband Fiber Cross Connection Unit (WFX) replaces antenna filter unit(WAF) in Nokia Advanced Indoor Radio applications.

Wideband Remote Unit (WRU) is used to distribute indoor coverage andcapacity. The length of the fiber link between WOM and WRU can be up to threekilometers.


BTS Description

9 GSM co-sitingWhen utilising existing BTS sites, the compatibility of Nokia UltraSite WCDMABTS with existing Nokia BTSs is a major issue. Nokia has designed NokiaUltraSite WCDMA BTS so that it can be installed as easily as possible to anexisting site. The figure below illustrates the principle of how this can beachieved.



GSM co-siting

Figure 24. Combining WCDMA BTS and GSM/EDGE BTS to the same antennafeeder with diplexer and Bias-T

Compatibility has been considered for the following areas:

Mechanics

Nokia UltraSite WCDMA BTS Optima Indoor and Supreme cabinets havesimilar space requirements as Nokia Talk-family and Nokia UltraSite EDGEBTSs have. Their floor installations also share the same fixing points. OptimaCompact Outdoor is slightly wider.

GSM/EDGEBTS

WCDMABTS

Bias-TDiplexer

Diplexer Diplexer

Bias-TDiplexer

MHA

MHA

Bias-T Bias-T

Abis/lubto/fromBSC/RNC

Pwr

lub


BTS Description

Power system

When Nokia UltraSite WCDMA BTSs are installed to existing GSM BTS sites,the same kind of connections and power supplies can be used.

Existing alarm connections, for example fire alarm and door alarm, can beconnected to Nokia UltraSite WCDMA BTS as well. Customer-specific alarminput and control output electrical specifications are the same, which allows fullinterchangeability between connections.

Nokia UltraSite Support cabinet can support both Nokia UltraSite EDGE andWCDMA BTSs.

Antennas

To minimise the work of adding WCDMA antennas to GSM BTS sites, a part ofthe existing antenna infrastructure can be reused.

A diplexer is an effective way to add Nokia UltraSite WCDMA BTS to theexisting site if the additional loss can be tolerated in the antenna line. Actuallosses are dependent on the combination, but for example in the GSM 900 /WCDMA case typical loss is less than 0.5 dB. Nokia will supply diplexers to allneeded combinations.

The Bias-T, with or without VSWR monitoring of the antenna line, supplies theMHA with a DC voltage from the BTS.



GSM co-siting

Figure 25. Co-sited Nokia UltraSite WCDMA and Nokia Talk-family BTSs

Transmission

Transmission of the existing sites can be efficiently utilised when WCDMA isadded. This has been a very important transmission design criteria for NokiaUltraSite WCDMA BTSs.

Nokia UltraSite WCDMA BTS is capable of connecting to the existing PDH/SDH networks. If there is excess capacity or possibility to increase capacity inthose networks, Nokia UltraSite WCDMA BTSs are able to use it.

The same kind of physical interfaces will be used in both GSM and WCDMAsystems. This will allow easy connection to the existing transmission.

Transmission capacity can be shared by using fractional E1s or circuit emulation.


BTS Description

Commissioning, integration, and management

The element manager SW provides support for the whole Nokia UltraSitesolution, for example WCDMA and EDGE BTSs. This allows personnel to docommissioning and integration on site using one laptop PC. They only usedifferent application software for the different technologies.



GSM co-siting

BTS DescriptionContents1 CE marking2 UL marking3 UltraSite WCDMA BTS product family4 Operation4.1 RAN interfaces4.1.1 Nokia UltraSite WCDMA BTS in Radio Access Network

4.2 Nokia UltraSite WCDMA BTS architecture4.3 Internal BTS signalling

5 Transmission5.1 Transmission interfaces5.2 Network topologies

6 Related software6.1 Local management6.2 Configuration management6.3 Software updates6.4 External alarms and controls

7 Cabinet construction7.1 Nokia UltraSite WCDMA BTS Supreme Indoor construction7.2 Nokia UltraSite WCDMA BTS Supreme Outdoor construction7.2.1 Noise Reduction Kit

7.3 Nokia UltraSite WCDMA BTS Optima Indoor construction7.4 Nokia UltraSite WCDMA BTS Optima Compact Outdoor construction7.4.1 Cabinet Core

8 Units8.1 Unit availability8.2 RF units8.2.1 Transmitter and Receiver unit8.2.2 Power Amplifier unit8.2.3 Input Combiner8.2.4 Output Combiner8.2.5 Antenna Filter unit

8.3 Baseband units8.3.1 Summing and Multiplexing unit8.3.2 Signal Processing unit8.3.3 Application Manager unit

8.4 Transmission units8.4.1 Transmission Interface unit8.4.2 ATM Cross-connection unit8.4.3 AXC Compact (AXCC/AXCD)

8.5 Common units8.5.1 System Clock unit8.5.2 Power Supply unit8.5.3 External Alarm unit8.5.4 IBBU (Integrated Battery Backup) system

8.6 Temperature control system8.7 Optional items

9 GSM co-siting

Documents

Nokia UltraSite WCDMA BTS Optima Compact (WREB), BTS Description