nokia ultrasite bts

Nokia UltraSite EDGE Base Station ProductDescriptions

Base Station Description

Nokia UltraSite EDGE Base Station ProductDescriptions

468959A

DN99440288 © Nokia Networks Oy 1 (46)Issue 1-1 en Nokia Proprietary and Confidential


The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This document is intended for theuse of Nokia Networks' customers only for the purposes of the agreement under which thedocument is submitted, and no part of it may be reproduced or transmitted in any form ormeans without the prior written permission of Nokia Networks. The document has beenprepared to be used by professional and properly trained personnel, and the customerassumes full responsibility when using it. Nokia Networks welcomes customer comments aspart of the process of continuous development and improvement of the documentation.

The information or statements given in this document concerning the suitability, capacity, orperformance of the mentioned hardware or software products cannot be considered bindingbut shall be defined in the agreement made between Nokia Networks and the customer.However, Nokia Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaNetworks will, if necessary, explain issues which may not be covered by the document.

Nokia Networks' liability for any errors in the document is limited to the documentary correctionof errors. Nokia Networks WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS INTHIS DOCUMENT OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL(INCLUDING MONETARY LOSSES), that might arise from the use of this document or theinformation in it.

This document and the product it describes are considered protected by copyright according tothe applicable laws.

NOKIA logo is a registered trademark of Nokia Corporation.

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

Copyright © Nokia Networks Oy 2000. All rights reserved.

2 (46) © Nokia Networks Oy DN99440288Nokia Proprietary and Confidential Issue 1-1en

Contents

Contents 3

1 About this document 7

2 General description 92.1 Operation 92.1.1 Uplink and downlink signalling 102.1.2 Internal BTS signalling 122.2 Transmission 142.2.1 Transmission mediums 142.2.2 Network topologies 152.2.3 Cross-connections 182.2.4 Protection 192.3 Related software 202.3.1 Network management SW 202.3.2 Nokia SiteWizard 202.3.3 Software updates 22

3 Construction 233.1 Cabinet core 233.2 Application kits 243.2.1 Outdoor Application Kit 243.2.2 Indoor Application Kit 253.3 Physical properties 263.3.1 Dimensions 263.3.2 Weights 273.3.3 Operational temperatures 27

4 Units 294.1 Unit availability 294.2 Unit versions 324.3 Unit overviews 344.3.1 Base Operations and Interfaces unit 344.3.2 Dual Band Duplex Filter unit 354.3.3 Transceiver Baseband unit 354.3.4 Dual Variable Gain Duplex Filter unit 354.3.5 Integrated Battery Backup 354.3.6 Masthead Amplifier and Bias Tee units 364.3.7 Receiver Multicoupler unit 364.3.8 Power Supply unit 364.3.9 Remote Tune Combiner unit 374.3.10 Temperature Control System 374.3.11 Transceiver unit 374.3.12 Transmission unit 374.3.13 Wideband Combiner unit 39

5 Technical data 415.1 Electrical properties 41



5.2 RF properties 425.2.1 Nokia UltraSite EDGE 900 BTS 425.2.2 Nokia UltraSite EDGE 1800 BTS 435.2.3 Nokia UltraSite EDGE 1900 BTS 445.3 External hardware interfaces 45


Summary of changes

First Release, 30th June 2000


About this document

1 About this documentThis document describes Nokia UltraSite EDGE Base Station (BTS).

Contents

This document contains the following information about Nokia UltraSite EDGEBTS:

• Chapter 2: General description

• Chapter 3: Construction

• Chapter 4: Units

• Chapter 5: Technical data

Readership

This document is for readers who want an overview of Nokia UltraSite EDGEBTS. Nokia recommends that you have basic knowledge of base station systemsand equipment.

For specific instructions on application planning, installation, andcommissioning, see Nokia UltraSite EDGE Base Station User Manual.


General description

2 General descriptionNokia UltraSite EDGE BTS is part of Nokia UltraSite Macrocellular Solution,which delivers macrocellular BTS products complete with transmission andauxiliary equipment. Optimised for high-capacity and wide-coveragemacrocellular applications, Nokia UltraSite EDGE BTS supports both omni-directional and sectorised configurations. It can be used in GSM 900, GSM 1800,or GSM 1900 systems, or as a GSM 900/GSM 1800 dual-band BTS.

Nokia UltraSite EDGE BTS is available in different cabinets for outdoor andindoor applications:

• Nokia UltraSite EDGE BTS Outdoor

• Nokia UltraSite EDGE BTS Indoor

• Nokia UltraSite EDGE BTS Midi Indoor (valuable where vertical space islimited)

For sites with minimised requirements, both the Outdoor cabinet and the Indoorcabinet can hold an Integrated Battery Backup (IBBU). When installed in one ofthese cabinets, an IBBU reduces the maximum number of Transceiver units(TSxx) in the cabinet from 12 to 6.

2.1 Operation

Nokia UltraSite EDGE BTS performs the radio functions of the Base StationSubsystem (BSS). The BTS receives and sends signals through:

• the Air interface — the frequencies that connect the BTS to the MobileStation (MS)

• the Abis interface — a cable or a radio link that connects the BTS to theBase Station Controller (BSC), which is the central element of the BSS

Figure 1 illustrates the BTS interfaces.



Figure 1. BTS interfaces

2.1.1 Uplink and downlink signalling

In the uplink path, the BTS receives signals from the MS; in the downlink path,the BTS sends signals to the MS. Uplink and downlink signals travel through theAir interface on different frequencies, the higher one carrying downlink signals.

BSCAbis interface Abis interface

Abis interface

Abis interface

UltraSite EDGE BTS

Air interface

MS

UltraSite EDGE BTS

UltraSite EDGE BTS

Transmission node/UltraSite EDGE BTS

99614843


General description

Uplink path

The antenna picks up a signal from the MS through the Air interface. The antennapasses the signal to the optional Masthead Amplifier (MNxx) and Bias Tee(BPxx) units or to the optional Dual Duplex Filter unit (DU2x). From there thesignal goes through the optional Dual Variable Gain Duplex Filter unit (DVxx)or the optional Remote Tune Combiner unit (RTxx) to the Receiver Multicouplerunit (M2xx and M6xx), and then to the Transceiver unit (TSxx).

The TSxx unit’s Transceiver module (TRX) converts the signal to IntermediateFrequency (IF) levels and filters the signal. Then the TSxx sends the signal to theTransceiver Baseband unit (BB2x) for digital signal processing.

The BB2x sends the processed signal to the Transmission unit (VXxx), whichpasses the signal through the Abis interface to the BSC.

Downlink path

The BSC receives a signal from the network and sends the signal to the VXxx unitthrough the Abis interface. The VXxx passes the signal to the BB2x unit fordigital signal processing. The BB2x sends the processed signal to the TSxx unit.

The TSxx unit’s Transceiver module (TRX) filters the signal, raises it to thecarrier frequency, and amplifies it. Then the TSxx sends the signal either to theRTxx unit or through the optional Wideband Combiner unit (WCxx) to the DVxxunit. The RTxx unit or the DVxx unit sends the signal to the optional DU2x unitor the optional BPxx and MNxx units.

The DU2x or the MNxx sends the signal to the antenna, which passes the signalthrough the Air interface to the MS.

Figure 2 illustrates the uplink and downlink signal paths.



Figure 2. Uplink and downlink signal paths

2.1.2 Internal BTS signalling

Buses on the BTS backplane and interconnected cables carry signals among theinternal BTS units.

Table 1 describes the buses and their functions.

Antenna

(Optional,used only withDVxx or RTxx

in low gain setting)

MNxx

KEY:VXxx = Transmission unitBOIx = Base Operations and Interfaces unitBB2x = Transceiver Baseband unitTSxx = Transceiver unitWCxx = Wideband Combiner unitDVxx = Dual Variable Gain Duplex Filter unit

RTxx = Remote Tune Combiner unitM2xx = 2-way Receiver Multicoupler unitM6xx = 6-way Receiver Multicoupler unitDU2x = Dual Band Duplex Filter unitBPxx = Bias Tee unitMNxx = Masthead Amplifier unitBSC = Base Station Controller

Downlink path

Uplink path

Downlink/uplink path

99614894

Air interface

MS

BOIx

BB2x TSxx

WCxx

Base Station Equipment

(Optional) (Optional, not usedwith RTxx

(Optional,not used with MNxx)

(Optional)

DVxxDU2x

RTxx

or

orRX

TX

or

M2xxor

M6xx

VXxx

BSC

Abisinterface

BPxx(Optional)


General description

Figure 3 illustrates the internal bus architecture.

Table 1. BTS buses

Bus Function

D1-bus Data transfer and signalling among BOIx, BB2x, and VXxxunits

D2-bus Internal Operations and Maintenance (O&M) functions andcommunication among BOIx, BB2x, and RTxx units; softwaredownloads

Local ManagementBus (LMB)

Control of BTS and VXxx unit

Q1-bus Polling and management of VXxx unit

I2C-data buses Polling, autodetection, temperature readings, and alarmcollection — Power Supply unit (PWSx), DVxx unit, andinterface module

Uplink/downlink serial

data busa

a. Located between the BB2x and the TSxx (through BOIx cross-connection).

Control, status, and traffic data between BB2x and TSxx units

F-busb

b. Located between BB2x units.

Baseband Frequency Hopping



Figure 3. Internal bus architecture

2.2 Transmission

Nokia UltraSite EDGE BTS provides scalable, high-capacity access transmissionfor large-capacity networks and data services. Nokia UltraSite EDGE BTSsupports 16 kbit/s, 32 kbit/s, and 64 kbit/s signalling through the Abis interface.The Operations and Maintenance (O&M) signalling speed can be 16 kbit/s or 64kbit/s.

2.2.1 Transmission mediums

Nokia UltraSite EDGE BTS supports radio-link, fibre-optic, and wire-linetransmission. The signals can be multiplexed, using either PDH or SDH, andcross-connected down to a level of 8 kbit/s in the BTS.

BOIx

Interfacemodule

Q1_2Q1_1 Q1_SSS

Q1_SSS

1 C_EAC2

1 C_Common2

1 C_A2

BB2x

F-bus

TSxx

TSxx

PWSx

DVxx

RTxx

VXxx

VXxx BB2x

DDXC

D1-bus

D2-busUplink/downlink

bus

Uplink/downlink busLMB

LMP

Q1_INTQ1_EXT

Abis

99614882


General description

Radio-link transmission

The radio-link transmission unit for Nokia UltraSite EDGE BTS is the FXC RRIunit. The proprietary Nokia Flexbus, a coaxial cable, is available for transmissionbetween the microwave indoor unit and the outdoor unit.

Nokia Flexbus carries as much as 16 x 2 Mbit/s in both directions, and it alsocarries power for the outdoor unit. It is compatible with Nokia FlexiHopperMicrowave Radio and Nokia MetroHopper Radio, and it can also connect BTSsor transmission nodes at the site. The maximum cable length is 300 meters.

Fibre-optic transmission

The fibre-optic transmission units for Nokia UltraSite EDGE BTS are the FXCSTM-1 and FXC Bridge (always used together). The FXC STM-1 unit uses astandard SDH optical STM-1 interface, which can carry 63 x 2 Mbit/s.

Wire-line transmission

Cellular Access networks have been based mainly on the E1 (ETSI) and T1(ANSI) standards. E1 capacity is 2 Mbit/s; T1 capacity is 1.5 Mbit/s.

Nokia UltraSite EDGE BTS supports those standards with the following wire-linetransmission units:

• FC E1/T1

• FXC E1

• FXC E1/T1

2.2.2 Network topologies

Nokia UltraSite EDGE BTS supports all network topologies directly — loop,chain, star, point-to-point, and mesh. Separate transmission nodes are notnecessary. The BTS cabinet can hold as many as 4 integrated transmission units.

There can be 8 microwave connections in a single-cabinet Nokia UltraSite EDGEBTS and 20 in connections a 3-cabinet site. The transmission can be directlyconnected to Nokia MetroSite GSM BTS through Nokia MetroHopper Radio orNokia FlexiHopper Microwave Radio. Grooming at the BTS further optimizestransmission capacity.

Each BTS cabinet using FXC transmission units can provide add-drop capacityto other sites. The integrated transmission can groom traffic and serve as a PDHloop master. Cross-connections down to 8 k granularity and grooming at the BTSfurther optimise transmission capacity.



One BTS cabinet can provide a Flexbus connection for up to 8 NokiaMetroHopper Radios or Nokia FlexiHopper Microwave Radios, without anyadditional transmission equipment like radio indoor units. With FXC E1/T1 units,the corresponding number of interfaces is 16.

One FXC STM-1 unit has two STM-1 interfaces, each with 63 x 2 Mbit/s. Theunit can be used as an interface to a fibre-optic network or as an indoor unit forNokia UltraHopper Microwave Radio.

The number of connections can be increased when new cabinets are installed.However, the cabinets must be interconnected. The preferred solution forinterconnecting cabinets is Flexbus. Connecting two cabinets requires oneFlexbus interface in each cabinet. Multiple cabinets are connected to the firstcabinet.

Flexbus is used to interconnect the cabinets when a total add-drop capacity of 16x 2 Mbit/s is sufficent. When more capacity is needed, the FXC STM-1transmission can be chained through multiple cabinets for an add-drop capacityof 21 x 2 Mbit/s per cabinet. The FXC STM-1 occupies two slots (FXC STM-1and FXC Bridge units), leaving space for two other transmission units per cabinet.

A co-located Nokia Talk-family BTS can be connected to Nokia UltraSite EDGEBTS using the integrated E1/T1 interface or Flexbus. During the upgrade phase,Nokia Talk-family transmission interface towards the BSC can be used to provideAbis for Nokia UltraSite EDGE BTS. This, however, limits the capacity andexpandability of the BTS. Therefore, it is recommended that the Abis interfacesare connected through Nokia UltraSite EDGE BTS.

The choice among topologies depends mainly on the requirements fortransmission media and availability. The loop topology is the most reliable,providing excellent protection against equipment failures and radio-link fading.

Figure 4 illustrates a loop topology.


General description

Figure 4. Nokia UltraSite loop topology

Figure 5 illustrates star and chain topologies.

99556995



Figure 5. Nokia UltraSite star and chain topologies

2.2.3 Cross-connections

Different transmission nodes support different cross-connection granularities andconnection types in GSM transmission networks. The BTS access networksnormally use 16 kbit/s for signalling and traffic. To fill higher-level transmissionpipes, the nodes must be able to make cross-connections on the 16 kbit/s level.

Nokia UltraSite EDGE BTS can handle the most important cross-connectiongranularities of:

• 8 kbit/s, needed when grooming Abis traffic

• n x 64 kbit/s

• 1.5 Mbit/s, corresponding to the T1 interface

• 2 Mbit/s, corresponding to the E1 interface

99557004

Star topology

Chain topology


General description

• VC-12 (virtual container inside VC-4), capacity 2 Mbit/s

• VC-4 (virtual container inside STM-1), capacity 63 x VC-12 (in laterreleases)

2.2.4 Protection

There are several complementary ways of protecting transmission againstproblems such as cable cuts, radio-link fading, and faults in the equipment.

Equipment protection

Equipment protection is used to ensure transmission regardless of faults in theequipment. This means that redundancy is built at the equipment level.

The Hot Standby (HSB) equipment protection for Nokia FlexiHopper MicrowaveRadio can be implemented with either one (FIU19, FXC RRI) or two (FIU19only) indoor units.

Protection of an FXC STM-1 unit can be implemented by installing a redundantFXC STM-1 unit. In the case of a fault in the operating unit or a forced switch bythe management function, the redundant, protecting unit becomes the primaryunit. This changeover is non-reverting.

Path protection

In general path protection, diverse paths for the traffic are configured to protecttraffic against faults. Nokia UltraSite EDGE BTS supports the 1+1 pathprotection where the traffic is sent in two paths simultaneously, and the protectionswitching is done entirely at the receiving end. Nokia UltraSite EDGE BTS doesnot provide support for the 1:1 and 1:N path protection methods.

The SDH multiplexing structure enables efficient path protection schemes. Singlemultiplexer sections as well as VC paths over several multiplexer sections can beprotected independently. The multiplexer sections may contain severalregenerator sections.

The FXC STM-1 units configured as Add/Drop Multiplexer (ADM) are capableof VC-12 level SNC/I (inherently monitored sub-network connection) protection.In multiplexer section protection the FXC STM-1 uses the single-ended switchingmode where both directions of transmission operate independently.

Loop protection

For connection protection to be efficient, diverse routes for the paths are needed.Loop or ring network structures are the most appropriate for this purpose. Loopsare a very efficient way to protect against failures in transmission path andequipment.



PDH loops with Nokia elements are implemented by a Nokia proprietary master-slave principle. The transmission direction in the loop is selected by using specialpilot bits. The pilot bits can be configured to be used as any bit in the 2 Mbit/ssignal. The loop master sends the pilot bits and thus controls the transmissiondirection of the loop.

SDH equipment provides efficient add/drop multiplexers without separate up anddown multiplexing. The ADMs can be used efficiently to provide automaticallyprotected transmission loops. The FXC STM-1 unit has two STM-1 interfaceswhich enables easy loop implementation. In later releases, FXC STM-1 can beused for interconnecting two loops.

2.3 Related software

The following Nokia software (SW) applications relate to Nokia UltraSite EDGEBTS:

• Network management SW

• Nokia SiteWizard

2.3.1 Network management SW

Nokia NMS/2000 SW in the Network Management System (NMS) manages theentire GSM network, including Nokia UltraSite EDGE BTS, through the BSC.This remote SW minimises the need for on-site BTS management.

Nokia NMS/2000 SW incorporates a full range of functions — from fault,performance, and configuration management to transmission, trouble, andsecurity management. For more information, refer to Nokia NMS documentation.

Nokia UltraSite EDGE BTS is delivered with factory-defined SW settings.

2.3.2 Nokia SiteWizard

Nokia SiteWizard manages Nokia UltraSite EDGE BTS on site. NokiaSiteWizard is a 32-bit application with a graphical user interface. It runs underWindows NT 4.0, Windows 95, or Windows 98.

Nokia SiteWizard handles the following tasks:

• commissioning

• supervision

• maintenance


General description

• testing

• transmission configuration

Nokia SiteWizard can upgrade the BTS online without interrupting its operation.

Figure 6 illustrates a Nokia SiteWizard window.

Figure 6. Nokia SiteWizard window with TRX Test dialog box displayed

Nokia SiteWizard has the following main features:

• displays autodetection of active base station hardware

• support for transmission autoconfiguration

• advanced BTS diagnostics and alarm management

• Commissioning Wizard and Configuration Wizard



Autodetection of active base station hardware

Nokia UltraSite EDGE BTS SW includes an autodetection feature thatautomatically identifies the active BTS hardware. This feature saves time incommissioning by reducing the number of required system-data entries. NokiaSiteWizard displays this information.

Support for transmission autoconfiguration

Nokia UltraSite EDGE BTS SW supports Nokia Autoconfiguration, a feature thatautomatically integrates the BTS into the GSM network.

Advanced BTS diagnostics and alarm management

Nokia UltraSite EDGE BTS features an advanced BTS diagnostics system thatconsiderably reduces the number of alarms. This system makes alarm informationeasily accessible and understandable.

Commissioning Wizard and Configuration Wizard

Commissioning Wizard and Configuration Wizard display menus thatcorrespond to the steps for commissioning the BTS. The steps include:

• Site Configuration File

• Transmission Configuration

• Setting EACs

• Testing

• Log Files

• Reports

2.3.3 Software updates

Nokia UltraSite EDGE BTS can store two SW packages in its memory. SW isloaded either locally with Nokia SiteWizard or remotely from the BSC or theNMS (through the BSC). The operator can download Nokia UltraSite EDGE BTSSW as a background operation (without interrupting the BTS operation) and canactivate the new software at any time.

Updates to Nokia UltraSite EDGE BTS SW are delivered in Nokia ElectronicDocumentation (NED) CD-ROM package. This package contains the currentversions of the BTS SW and Nokia SiteWizard. For more information on NokiaUltraSite EDGE BTS SW, refer to Nokia UltraSite EDGE BTS PU1.0 SoftwarePre-release Binder.


Construction

3 ConstructionNokia UltraSite EDGE BTS Outdoor and Indoor cabinets are constructed onidentical cabinet cores. The main difference between the cabinets is in theexternal application kits.

3.1 Cabinet core

Nokia UltraSite EDGE BTS features a self-standing cabinet core (CRMx) withunit guides.

Figure 7 illustrates the cabinet core (CRMx).

Figure 7. Cabinet core (CRMx)

00197522



3.2 Application kits

The application kits are sets of metal panels that shield the BTS fromelectromagnetic interference (EMI). The following kits are available:

• Outdoor Application Kit (OAKx)

• Indoor Application Kit (IAKx)

3.2.1 Outdoor Application Kit

In addition to its EMI protection, the Outdoor Application Kit (OAKx) protectsthe Outdoor BTS against water, snow, and solid foreign objects. The OAKx isweatherproof to IP 55 standards.

The OAKx consists of the following:

• a door, with a Cabinet Cooling Fan for additional cooling

• a back

• a roof

• a plinth for one BTS cabinet

• two side panels

• mounting hardware

Figure 8 illustrates the OAKx.


Construction

Figure 8. Outdoor Application Kit (OAKx)

3.2.2 Indoor Application Kit

The Indoor Application Kit (IAKx) shields Nokia UltraSite EDGE BTS Indoorfrom EMI interference. The IAKx consists of the following:

• a door

• a roof

• mounting hardware

Figure 9 illustrates the IAKx.

Cabinet core(CRMx)

(4 places) 99614855

Lifting eye bolts,optional (4 places)

KEY:1. Feet2. Roof3. Door 1

2

3



Figure 9. Indoor Application Kit (IAKx)

3.3 Physical properties

This section describes the dimensions, weights, and operational temperatures ofNokia UltraSite EDGE BTS Outdoor, Indoor, and Midi Indoor.

3.3.1 Dimensions

Figure 10 illustrates the dimensions of Nokia UltraSite EDGE BTSs.

Cabinet core(CRMx)

(4 places) 99614855

Lifting eye bolts,optional (4 places)

KEY:1. Feet2. Roof3. Door 1

2

3


Construction

Figure 10. Dimensions of Nokia UltraSite EDGE BTSs

3.3.2 Weights

Table 2 lists the weights of Nokia UltraSite EDGE BTSs.

3.3.3 Operational temperatures

Table 3 lists the operational temperatures of Nokia UltraSite EDGE BTSs.

Outdoor Indoor Midi

NOTES:

1. Dimensions: mm (inch)

2. Includes feet, not shown

1800

(70.9)

Note 21100

(43.3)

Note 2

600

(23.6)

750(29.5)

600

(23.6)

620

(24.4)620

(24.4)

770(30.3)

1940

(76.4)

99440291

Table 2. Weights of Nokia UltraSite EDGE BTSs

BTS Value (metric) Value (imperial)

Indoor 336 kg 739.2 lb.

Midi Indoor 174 kg 382.8 lb.

Outdoor 384 kg 844.8 lb.



Table 3. Operational temperatures of Nokia UltraSite EDGE BTSs

Property Indoor Midi Indoor Outdoor

Low temperature -5°C /+23°F -5°C / +23°F Without optionalHeater (HETA)

-10°C / +14°F

With optionalHeater (HETA)

-33°C / -27°F

High temperature 50°C / 122°F 50°C / 122°F 50°C / 122°F


Units

4 UnitsThis chapter describes the units and unit versions available for Nokia UltraSiteEDGE BTS Indoor, Outdoor, and Midi Indoor. It also contains brief overviews ofthe units.

4.1 Unit availability

Table 4 lists the delivered, optional, and unavailable units for each NokiaUltraSite EDGE BTS.

Table 4. Unit availability for Nokia UltraSite EDGE BTSs

Unit Indoor Midi Indoor Outdoor

Base Operations andInterfaces (BOIx)

Yes (1) Yes (1) Yes (1)

Dual Band Duplex Filter(DU2x)

Option (0 to 6) Option (0 to 3) Option (0 to 6)

Transceiver Baseband(BB2x)

Yes (1 to 6) Yes (1 to 6) Yes (1 to 6)

Dual Variable Gain

Duplex Filter (DVxx)aOption (0 to 6) Option (0 to 3) Option (0 to 6)

Integrated Battery

Backup (IBBU)bOption (1) No Option (1)

Masthead Amplifier(MNxx)

Option (0 to 12) Option (0 to 6) Option (0 to 12)

Bias Tee (BPxx)

BPxVc

BPxNd

Option (0 to 12)

Option (0 to 12)

Option (0 to 6)

Option (0 to 6)

Option (0 to 12)

Option (0 to 12)



The optional Integrated Battery Backup (IBBU) is available to ensureuninterrupted power in case the main power fails. The IBBU consists of thefollowing:

• AC / DC unit (ADUx with CCUx)

• Rectifier units (BATx)

• Battery units (BBAx)

Figure 11 illustrates interior units in Nokia UltraSite EDGE BTS without anIBBU.

Receiver Multicouplere

M2xx (2-way)

M6xx (6-way)

Yes (1 to 6)

Yes (1 to 2)

Yes (1 to 3)

Yes (1)

Yes (1 to 6)

Yes (1 to 2)

Power Supply (PWSx)

PWSA (AC)

PWSB (DC)

Yes (1 to 2)

Yes (1 to 3)

Yes (1 to 2)

Yes (1 to 3)

Yes (1 to 2)

Yes (1 to 3)

Remote Tune Combiner(RTxx)

Option (0 to 2) Option (0 to 1)f Option (0 to 2)

Temperature ControlSystem (TCS)

Unit Cooling Fans

Heater unit (HETA)

Cabinet Cooling Fan

Yes (11)

No

No

Yes (8)

No

No

Yes (11)

Option (1)

Yes (1)

Transceiver (TSxx) Yes (1 to 12) Yes (1 to 6) Yes (1 to 12)

Transmission (VXxx) Yes (1 to 4) Yes (1 to 4) Yes (1 to 4)

Wideband Combiner(WCxx)

Option (0 to 9) Option (0 to 4)g Option (0 to 9)

a. DVxx eliminates RTxx unit.b. IBBU replaces lower six TSxx units.c. BPxV (with VSWR antenna monitoring) can be used with or without MNxx.d. BPxN (without VSWR antenna monitoring) can be used only with MNxx.e. M2xx and M6xx can be used together as cabinet space allows.f. RTxx in Midi Indoor eliminates WCxx and DVxx units.g. WCxx in Midi Indoor eliminates RTxx unit.

Table 4. Unit availability for Nokia UltraSite EDGE BTSs (Continued)

Unit Indoor Midi Indoor Outdoor


Units

Figure 11. Nokia UltraSite EDGE BTS interior units (without IBBU)

Figure 12 illustrates interior units in Nokia UltraSite EDGE BTS with an IBBU.

KEY:

1 Transceiver unit (TSxx)2 2-way Receiver Multicoupler unit (M2xx)3 Transceiver Baseband unit (BB2x)4 Base Operations and Interfaces unit (BOIx)5 Transmission unit (VXxx)6 Wideband Combiner unit (WCxx)7 Dual Variable Gain Duplex Filter unit (DVxx)8 DC/DC Power Supply unit (PWSB)9 6-way Receiver Multicoupler unit (M6xx)10 Remote Tune Combiner unit (RTxx)11 AC/DC Power Supply unit (PWSA)12 Bias Tee unit (BPxx)13 Dual Band Duplex Filter unit (DU2x)

3

3

5

5

4

4

8

11 11

8 8

7

7

7

7

2

2

2

2

2

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

9

10

00206958

6

6

6

12 or 13

12 or 13



Figure 12. Nokia UltraSite EDGE BTS interior units (with IBBU)

4.2 Unit versions

Table 5 lists the unit versions for Nokia UltraSite EDGE BTS.

KEY:

1 Transceiver unit (TSxx)2 2-way Receiver Multicoupler unit (M2xx)3 Transceiver Baseband unit (BB2x)4 Base Operations and Interfaces unit (BOIx)5 Transmission unit (VXxx)6 Dual Variable Gain Duplex Filter unit (DVxx)7 DC/DC Power Supply unit (PWSB)8 Rectifier unit (BATx)9 Battery unit for IBBU (BBAx)10 AC/DC Distribution unit for IBBU (ADUx)11 Cabinet Control unit (CCUx)12 Bias Tee unit (BPxx)13 Dual Band Duplex Filter unit (DU2x)

1

1

1

1

1

1

8

8

8

8

8

7 7

12 or 13

73 54

9

910

11

2

2

26

6

6 BTScomponents

IBBUcomponents

00206946


Units

Table 5. Nokia UltraSite EDGE BTS unit versions

Unit Version

Base Operations and Interfaces (BOIx) N/A

Dual Band Duplex Filter (DU2x) GSM 900/1800

Transceiver Baseband (BB2x) N/A

Dual Variable Gain Duplex Filter (DVxx) GSM 900

GSM 900 H Band

GSM 900 J Band

GSM 1800 A Band

GSM 1800 B Band

GSM 1800 Full Band

GSM 1900

Integrated Battery Backup (IBBU) N/A

Masthead Amplifier (MNxx) GSM 900

GSM 1800 A Band

GSM 1800 B Band

GSM 1900 A Band

GSM 1900 B Band

GSM 1900 C Band

Bias Tee (BPxV), with VSWR antennamonitoring

GSM 900

GSM 1800/1900

Bias Tee (BPxN), no VSWR antennamonitoring

N/A

Receiver Multicoupler (M2xx and M6xx) GSM 900

GSM 1800/1900

Power Supply (PWSx) AC (PWSA)

DC (PWSB)

Remote Tune Combiner (RTxx) GSM 900

GSM 900 H Band

GSM 900 J Band

GSM 1800 A Band

GSM 1800 B Band

GSM 1800 Full Band

GSM 1900

Unit Cooling Fans N/A — included in cabinet core



4.3 Unit overviews

This section presents a brief overview of each unit in Nokia UltraSite EDGE BTS.For detailed information about a unit, see the unit’s individual description in thismanual.

4.3.1 Base Operations and Interfaces unit

The Base Operations and Interfaces unit (BOIx) handles the control functionscommon to all other units in the BTS. These functions include:

• BTS initialisation and self-testing

• configuration

• O&M functions

• software downloads

• main clock functions

• timing functions

Heater (HETA) N/A — optional in Outdoor Application Kit(OAKx)

Cabinet Cooling Fan N/A — included in Outdoor Application Kit(OAKx)

Transceiver (TSxx) GSM 900

GSM 1800

GSM 1900

Transmission (VXxx) FXC RRI

FXC E1 (75 Ω)

FXC E1/T1 (120/100 Ω)

FXC STM-1

FXC Bridge

FC E1/T1

Wideband Combiner (WCxx) GSM 900

GSM 1800

GSM 1900

Table 5. Nokia UltraSite EDGE BTS unit versions (Continued)

Unit Version


Units

• collection and management of external and internal alarms

• message delivery to the BSC (through the VXxx unit)

• cabinet control

4.3.2 Dual Band Duplex Filter unit

The Dual Band Duplex Filter unit (DU2x) combines outputs from GSM 900 andGSM 1800 DVxx or RTxx units into one antenna feeder.

4.3.3 Transceiver Baseband unit

The Transceiver Baseband unit (BB2x) is a digital signal processing board,consisting of two independent baseband modules; each module functionsindependently for its own TSxx unit. The BB2x also controls frequency hopping.

4.3.4 Dual Variable Gain Duplex Filter unit

The Dual Variable Gain Duplex Filter unit (DVxx) performs duplex operation ofTX and RX signals into a common antenna, and provides filtering andamplification for main and diversity receiver signals before they go through theM2xx or M6xx unit to the TSxx unit. The DVxx unit contains a variable-gainLNA for optimal amplification of the receive signal, with or without the optionalMasthead Amplifier.

4.3.5 Integrated Battery Backup

The optional Integrated Battery Backup (IBBU) ensures a continual power supplyif the main AC power fails. The IBBU can produce power for as many as 18 TSxxunits in two BTS cabinets. It occupies the bottom of Nokia UltraSite EDGE BTS.

The IBBU consists of the following:

• AC / DC unit (ADUx with CCUx)

• Rectifier units (BATx)

• Battery units (BBAx)

For more information about the IBBU, refer to Nokia UltraSite Support ProductOverview.



4.3.6 Masthead Amplifier and Bias Tee units

Masthead Amplifier unit

The Masthead Amplifier unit (MNxx) delivers 33 dB RX gain in GSM 1800/GSM 1900 units and 32 dB RX gain in GSM 900 units, low RX noise figure(improved RX sensitivity and signal-to-noise ratio) and low TX loss in a compact,low volume, light-weight sealed enclosure. To use the MNxx, the Bias Tee unitis required.

Bias Tee unit

The Bias Tee unit (BPxx) provides DC power, through an RF cable, to the MNxxunit. There are two versions of the BPxx unit:

• BPxV — Bias Tee with Voltage Standing Wave Ratio (VSWR) antennamonitoring, which checks the antenna line’s condition and gives an alarmif the VSWR value exceeds the limit

• BPxN — Bias Tee without VSWR antenna monitoring

The BPxN (without VSWR) is used solely with the MNxx, while the BPxV (withVSWR) can be used with or without the MNxx.

4.3.7 Receiver Multicoupler unit

The Receiver Multicoupler unit (M2xx and M6xx) distributes RX signals to TRXRF units. The 2-way unit (M2xx) is used in most WCxx or combining by-passconfigurations. The 6-way unit (M6xx) is always used with an RTxx unit. Oneunit performs signal splitting for both main and diversity branches.

4.3.8 Power Supply unit

The Power Supply unit (PWSx) converts input AC or DC voltage to the differentDC voltages required for the various BTS units. Then it distributes theappropriate voltages through the backplanes to the units — except for the optionalHeater unit (HETA), which receives its voltage from the AC mains through thepower filter module. The PWSx unit also supplies power for the MastheadAmplifier unit (MNxx).

Nokia UltraSite EDGE BTS can hold two AC Power Supply units (PWSA) orthree DC Power Supply units (PWSB). The PWSA supports full redundancy foras many as six TSxx units. The PWSB supports full redundancy for as many as12 TSxx units.


Units

4.3.9 Remote Tune Combiner unit

The Remote Tune Combiner (RTxx) combines up to six transmitter outputs intoone antenna. It also provides filtering and amplification for main and diversityreceiver (RX) signals before they go through the M2xx or M6xx unit to the TSxxunit.

The RTxx unit contains a variable-gain LNA for optimal amplification of thereceive signal. The high-gain LNA is fixed, and is used without the optionalMNxx unit. The low-gain LNA is variable, and is used only with the MNxx unit;the low-gain LNA is set according to antenna cable attenuation values.

A duplexer is built into the RTxx, so no DVxx unit is required.

4.3.10 Temperature Control System

Unit Cooling Fans

The Unit Cooling Fans are included in the cabinet core. The BOIx unit controlsthe fan units according to temperature information from other units. The coolingis performed by adjusting the rotation speed of the fans. Smooth speed variationsalso minimise the noise generated by the fan units.

Heater unit

The optional Heater unit (HETA) is needed in Nokia UltraSite EDGE BTSOutdoor to cold-start the BTS when operating in temperatures between -10 and -33°C (+14 to -27°F). It will also maintain interior cabinet temperature duringextreme cold operation.

Cabinet Cooling Fan

The Cabinet Cooling Fan is included in the Outdoor Application Kit (OAKx), andis mounted in the cabinet door.

4.3.11 Transceiver unit

The Transceiver unit (TSxx) consists of one transmitter, one main receiver, andone diversity receiver.

4.3.12 Transmission unit

The Transmission unit (VXxx) connects Nokia UltraSite EDGE BTSs with eachother and to the rest of the network.

Transmission units are available for the following mediums:



• radio link

• fibre-optic cable

• wire line

Radio-link transmission

The FXC RRI unit is the radio-link transmission unit for Nokia UltraSite EDGEBTS. The FXC RRI supports the following:

• two Flexbus connections (coaxial cable), each at 16 x 2 Mbit/s

• grooming

• branching

• loop protection

• cross-connection on 8 kbit/s level

Flexbus connects FXC RRI transmission units to Nokia FlexiHopper MicrowaveRadio or Nokia MetroHopper Radio. When multiple BTS cabinets are located atthe same site, a one-cable Flexbus (provided by RRI units) can connecttransmission units between two cabinets.

The FXC RRI operates as a repeater and interconnects Nokia UltraSite EDGEBTS and the BSC using point-to-point, chain, star, or loop networkconfigurations.

For more information on UltraSite-compatible radios, refer to Nokia FlexiHopperMicrowave Radio Product Overview and Nokia MetroHopper Radio ProductOverview.

Fibre-optic transmission

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

• FXC STM-1: two standard STM-1 (155 Mbit/s) short-haul opticalinterfaces and power feed for two Nokia UltraHopper radios. Performs themain SDH functions, including the SDH node clock, SDH cross-connect(VC-3, VC-2, VC-12 level), and management functions

• FXC Bridge: Bridge for the signals between the SDH part and the PDHcross-connect of the FXC units. Includes Q1 management and crossconnection on 8 kbit/s, 16 kbit/s, 32 kbit/s, 64 kbit/s, and n x 64 kbit/s level

The FXC STM-1 and FXC Bridge transmission units are always used together;each unit occupies one transmission slot. The FXC STM-1 unit can be connectedto any SDH equipment through the standard STM-1 optical interfaces.


Units

The FXC STM-1 and FXC Bridge operate as a repeater/branching point andinterconnect Nokia UltraSite EDGE BTS and the BSC using point-to-point,chain, star, or loop network configurations.

For more information on UltraSite compatible SDH radios, refer to NokiaUltraHopper Microwave Radio Product Overview.

Wire-line transmission

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

• FC E1/T1: 1 x 2 Mbit/s (E1) or 1 x 1.5 Mbit/s (T1) PCM connection, onecoaxial 75-ohm TX and one coaxial 75-ohm RX connector for E1 use, onetwisted pair 120-/100-ohm TX/RX interface connector for either E1 or T1use

• FXC E1: 4 x 2 Mbit/s (E1) PCM connections, four coaxial 75-ohm TX andfour coaxial 75-ohm RX connectors for E1 use, grooming, branching, andloop protection support, cross-connection down to 8 kbit/s level

• FXC E1/T1: 4 x 2 Mbit/s (E1) or 4 x 1.5 Mbit/s (T1) PCM connections, fourtwisted pair 120-/100-ohm TX/RX interface connectors for either E1 or T1use, grooming, branching, and loop protection support, cross-connectiondown to 8 kbit/s level. Interfaces can be configured independently eitherE1 or T1 mode

The FC E1/T1 operates as the termination point in a star or chain topologynetwork. The FXC E1 and FXC E1/T1 operate as branching points andinterconnect Nokia UltraSite EDGE BTS and the BSC using point-to-point,chain, star, or loop network configurations.

4.3.13 Wideband Combiner unit

The Wideband Combiner (WCxx) combines two transmitter outputs into one.When using the WCxx, the DVxx unit is required.


Technical data

5 Technical dataThis chapter contains the following technical data for Nokia UltraSite EDGE 900,1800, and 1900 BTS:

• electrical properties

• RF properties

• external hardware interfaces

5.1 Electrical properties

Table 6 lists electrical properties for Nokia UltraSite EDGE 900, 1800, and 1900BTS.

Table 6. Electrical properties for Nokia UltraSite EDGE 900, 1800, and 1900BTS

Property12 TRX RF unitIndoor

6 TRX RF unitMidi

12 TRX RF unitOutdoor

Nominal voltage (50/60 Hz)

230 VAC

-48 VDC

230 VAC

-48 VDC

230 VAC

-48 VDC

Permitted operating

voltage fluctuationa

a. External supply range, 45 to 66 Hz.

184 to 276 VAC

-36 to -60 VDC

184 to 276 VAC

-36 to -60 VDC

184 to 276 VAC

-36 to -60 VDC

Cabinet maximumpower demand

4.5 kW VAC

3.98 kW VDC

2.5 kW VAC

2.2 kW VDC

4.68 kW VAC

4.16 kW VDC

Antenna isolation 30 dB 30 dB 30 dB



5.2 RF properties

This section describes RF properties for Nokia UltraSite EDGE 900, 1800, and1900 BTS.

5.2.1 Nokia UltraSite EDGE 900 BTS

Table 7 lists RF properties for Nokia UltraSite EDGE 900 BTS.

Table 7. RF properties for Nokia UltraSite EDGE 900 BTS

Property Value

TX frequency range A: 925 to 960 MHz

H: 942.5 to 960 MHz

J: 935 to 960 MHz

RX frequency range A: 880.0 to 915 MHz

H: 897.5 to 915 MHz

J: 890.0 to 915 MHz

Channel spacing 200 kHz

Available radio channels 174

TX output power at antenna connector

(guaranteed level)

Combining by-pass

2:1 Wideband Combiner


RTC

44.5 dBm

41.0 dBm

37.5 dBm

42.0 dBm

Dynamic power control 30 dB

(15 steps in 2 dB increments)

RX sensitivity

Single branch (static) -110.5 dBm


Technical data



Single branch (static) w/UltraSite MNxx -111.0 dBm

2-way diversity (static) Theoretical 3 dB improvement forsingle branch case. Link budgetimprovement depends on fadingprofiles used in network planning.


Table 7. RF properties for Nokia UltraSite EDGE 900 BTS (Continued)

Property Value


Property Value

TX frequency range A: 1805 to 1850 MHz

B: 1835 to 1880 MHz

RX frequency range A: 1710 to 1755 MHz

B: 1740 to 1785 MHz




(guaranteed level)

Combining by-pass



RTC

44.5 dBm

41.0 dBm

37.5 dBm

42.0 dBm



RX sensitivity










Property Value


Property Value

TX frequency range 1930 to 1990 MHz

RX frequency range 1850 to 1910 MHz



Blocked channelsa 5 (586, 611, 686, 711, 736)

Reduced-power channels (power levels 0

to 3 not used)b12 (512, 585, 587, 610, 612, 685, 687,710, 712, 735, 737, 810)


(guaranteed level)

Combining by-pass



RTC

44.5 dBm

41.0 dBm

37.5 dBm

42.0 dBm



RX sensitivity



Technical data

5.3 External hardware interfaces

Table 10 describes the external hardware interfaces of Nokia UltraSite EDGE900, 1800, and 1900 BTS.


2-way diversity (static) Theoretical 3 dB improvement for singlebranch case. Link budget improvementdepends on fading profiles used innetwork planning.

4-way diversity (static) Theoretical 6 dB improvement for singlebranch case. Link budget improvementdepends on fading profiles used innetwork planning.

a. For earlier BTS classes. Nokia UltraSite EDGE BTS is expected to be similar.b. For earlier BTS classes. Nokia UltraSite EDGE BTS is expected to be similar.


Property Value

Table 10. External hardware interfaces of Nokia UltraSite EDGE 900, 1800,and 1900 BTS

Interface Value Connector Type

Antenna connectors 6 (standard) + 6(optional)

7/16

AC supply 184 to 276 VAC Phoenix connector 0.5-16mm

DC supply -36 to - 60 VDC Phoenix connector 16-50mm

Grounding ≤ 5 Ω 5 mm screw

ESD stud

External alarms andcontrols

TTL/open collector

24 external alarms

6 Controls

D-37

Frame number, frameclock, mains and SISUalarm input

RS-485 D-15



Frame number, frameclock, mains and SISUalarm output

RS-485 D-15

Abis 2 Mbit/s (E1) or

1.5 Mbit/s (T1) PCM

TQ for 120 Ω E1

TQ for 100 Ω T1

BT 43 for 75 Ω E1

RRI RRI Flexbus Radiolink I/O and power output (55VDC)

TNC

Q1 interface RS-485 D-9 female

LMP for MMI/ILMT RS-232 D-9 female

13 MHz test clock SMB female

Test FCLK SMB female

Test/monitor interface D-25 female

Table 10. External hardware interfaces of Nokia UltraSite EDGE 900, 1800,and 1900 BTS (Continued)

Interface Value Connector Type


nokia ultrasite bts

Documents

lifting eye

remote tune

base station

rx frequency

integrated

tx frequency

outdoor application

earlier bts