Flexi EDGE BTS ModulesRequired ModulesOptional Modules

ObjectivesAfter the module the participant will be able to:Describe in detail the units in Nokia Flexi EDGE BTS, giving brief technical specificationsName the Required units, giving descriptionsName the Optional units, with descriptions

Nokia Flexi BTS modules3 HU modulesFor stand alone and cabinet installations133 x 447 x 560 [mm], (H x W x D)Weight 10 20 kg (+ 6 kg for casing and covers)2 HU modulesFor stand alone and cabinet installations89 x 447 x 560 [mm], (H x W x D)Weight 10 kg (+ 5 kg for casing and covers)4 HU module (RTC only)Only for cabinet installations171 x 447 x 415 [mm], (H x W x D)Weight 28.5 kg In cabinet installations max module depth is 422 mm447 mm560 mm

Nokia Flexi EDGE System Module (ESMA, 3HU)Module for BTS common functionalities and internal/external connectionsSupports up to 6 DTRX modules (up to 12TRX) 5 main functions of the module:BTS O&M: SW downloading and storing (2 * BTS SW), configuration management, reference clock and alarmsBTS integrated transport: Abis transmissionBB switching: communication between modules via Ethernet switchBTS power distribution: single point for power intake and power distribution to all modulesBTS internal and external synchronizationPDU (power distribution unit) 48V intake

Interchangeable Transport module: 8xE1, 8xE1/T1 or 2x FlexbusSite support system, MIBBU alarms (6), Aux equipment Q1, Local Management Port (LMP)6x Ethernet to DTRX or RTC PDU (power distribution unit) 6x48V to other modulesOut1xEAC (External Alarm & Control)12x alarm inputs+6x control outputsHU = 44.4 mmIn Synchronization

Nokia Flexi EDGE Dual TRX Module (EXxA, 2HU)Dual TRX module (DTRX) is a 2 carrier TRX unit, used as: a stand alone TRX module (2 TRX capacity)or a Sector module with the Dual duplexer module (2 TRX capacity)or as Double Power TRX, DPTRX (1 TRX capacity)or for Intelligent Downlink Diversity, IDD (1 TRX capacity)DTRX consists of: BB part that is common to both TRXsRF part with 2 independent transmit (TX) chains and 4 receive (RX) chains0-2 Wideband combiner (WBC) sub-modulesRX connections for diversity:2-way diversity: 2 RX inputs/DTRX used when both TRXs are in same sector 4 RX inputs/DTRX used when TRXs of the DTRX are in 2 different sectors 4-way diversity: 4 RX inputs/DTRX used (supported only with SRC or DPTRX)DTRX connected to system module via single Gigabit Ethernet interfacePower feed from system module via single cable4xRXTX 20-2xWideband combiners1xBus1xDTRX-DDU1xPowerPhase feedback from WBC (DPTRX)TX 1HU = 44.4 mm

Nokia Flexi EDGE Dual Duplexer Module (ERxA, 1HU)Dual duplexer (DDU) module together with Dual TRX create a logical Sector moduleMin 1 DDU per sector is needed DDU is attached to DTRX moduleDDU provides duplex functionality to combine TX and RX signals to same antenna feeder multicoupling2 antenna connections (for 1 or 2 sectors)2 TX inputs and 4+4 RX outputs (4 RX from antenna 1 and 4 RX from antenna 2)DDU contains 2 duplex filter2 Low Noise Amplifiers (LNAs) with high/low gain support for RX signal2 Bias-Ts with VSWR measurement functionality TRX loop is controlled through the DDU Common TRX loop for all TRXs in same sectorLoop can be performed from either TX to any of 8 RX outputs (only 1 TX and 1 RX can be simultaneously tested)4xRX 1TX 2TX 1RX for external BTSRX for external BTSHU = 44.4 mmAnt 1Ant 24xRX 2

Flexi EDGE Wideband CombinerThere are three variants:EWGA850/900 MHz BandsEWDA1800 MHz BandEWPA1900 MHz Band

Specifications:TXa or TXb to TXout

Flexi EDGE Sector ModuleSector module is a logical unit consisting of 2 building blocks:Dual TRX (DTRX) module Dual duplexer moduleMinimum one Sector module is needed per sectorThere is space for 1-2 optional Wideband combiner (WBC) submodules in DTRX moduleFor 4-way UL diversity 2 Sector modules are needed per sector Both units fit into a 3HU casing3HU

Nokia Flexi EDGE System Extension Module (ESEA, 3HU)System extension module is required for large BTS configurations (System module for 1-6 DTRX, System extension module for 7-12 DTRX)System extension module is always required for RTC configurationsAll TRXs must be connected to same system module for BB hoppingThe functionalities of System extension module:Power distribution to additional modules (i.e. DTRX 7-12). Power distribution part has six 48V outputsProviding 12 Ethernet and synchronization connections to DTRX (DTRX 1-12) and 1 connection to System modulePDU (power distribution unit) 48V intake

12x Ethernet to DTRXPDU (power distribution unit) 6x48V to other modulesEthernet to System module

ESMA compared to ESEAECxA 1-3ESMA on its own controls TRXs..When ESEA is used, the ESEA controls the TRXs- The ESMA now is used only for the ECxAs (RTC)

Nokia Flexi EDGE RTC Module, cavity combining (ECxA, 4HU)Optional RTC module for ETSI frequency bands combines max 6 TRX/antennaMin 1 RTC per sector is neededRTC provides: Combining of up to 6 TX signals to same antenna feederDuplex functionality to combine TX and RX signals to same antenna feeder Multicoupling2 antenna connections (for 1 or 2 sectors)6 TX inputs and 3+3 RX outputs (3 RX from antenna 1 and 3 RX from antenna 2)RTC module contains: 6 tunable cavity combiner2 Low Noise Amplifiers (LNAs) for RX signal2 duplex filter2 Bias-Ts with VSWR measurement functionalityTRX loop is controlled through the RTC Loop can be performed from 6 TX to any of 6 RX outputs (only 1 TX and 1 RX can be simultaneously tested)DTRX connected to system module via single Gigabit Ethernet interfacePower feed from system module via single cableHU = 44.4 mm

Nokia Flexi EDGE BTS powering: distributed power supplySystem module distributes power to other modulesAll modules generate own internal voltagesBTS powering may be supplied from:Nokia Flexi Power AC/DC module (with or without battery) providing 48VDC input to the power distributionNokia Flexi Power DC/DC module (24/48VDC)Integrated long term battery back-up (MIBBU)Standard Site support cabinet

Nokia Flexi Power Module (FPMA, 3HU)Power module provides the casing and cable connectors for 4 power sub-modulesinput / output terminals, output DC and alarm cablesPower AC-DC sub-module (FPAA)230V AC 48V DC converter04 FPAA per Power module; 1kW power eachincludes AC-filtersBattery sub-module (FPBA)gives minute-level back-up when AC mains are down04 FPBA per Power module (except how can they be charged?)

FPMA with 3 AC/DC sub-modules and 1 Flexi Power Battery

Nokia Flexi Power DC-DC 24V Module (FPDA, 2HU)Optional DC/DC converts from external 24V DC to internal 48V DC1 DC-DC module gives up to 2kW power Useful in swap-out scenarios48DCV output24 V DC input

Summary of units

Main modules of Nokia Flexi EDGE BTSHU = 44.4 mm

Optional modules and sub-modules (1)Module casings 2HU and 3HU casings for module stacking, guiding airflows and finalizing IP55 protectionCoversFront and back covers for modulesTransmission sub-modules8 x E1 asymmetrical sub-module 8 x E1/T1 symmetrical sub-module2 x Nokia Flexbus sub-moduleRemote Tune Combiner module (4HU)6:1 combiner, ETSI frequenciesDuplexing & multicoupling, VSWR, Bias TWideband combiner sub-module2:1 combinerAttached to DTRX; max 2/DTRX

Common modules with Nokia Flexi WCDMA BTSSystem extension module (3HU)For over 12TRX and RTC configurationsPower distribution, system busCabinets: indoor and outdoorOptional cabinets where requiredHU = 44.4 mm

Optional modules and sub-modules (2)Common modules with Nokia Flexi WCDMA BTSPower AC-DC sub-moduleAC/DC converter: from 230V AC to 48V DC Max 4 per Power module; 1kW power each

Power DC-DC moduleDC/DC converter: from external 24V DC to internal 48V DCMax 2kW supplyIntegrated long term battery backup (MIBBU)Indoor sites: MIBBU + separate battery give long term battery back-upOutdoor sites: MIBBU in Site support module + separate batterySite support module7HU IP55 space for 3rd party LTE in Nokia Flexi BTS outdoor cabinetsUp to ?? kWUp to ?? Ah

In this section, the individual module functionalities will be explained in more detail. As will be seen, a minimum system can be build with Required modules only (however, there can be a little confusion at this issue with the Dual Duplexer module) {Emphasise that this is NOT the same unit as in Flexi WCDMA }This unit is central to FlexiEDGE BTS. {See slide for functionality}SW download and storing will store 2 sets of BTS S/W

Substantially equivalent to two UltraSite TSxBs (i.e., EDGE-capable). Full specifications of this is at the end of the module configurationsThe Flexi EDGE BTS wideband combiner consists of a 2-way power combiner, isolators on each input, unit mechanics, and a combined power output port. There are two input connectors TxA and TxB and one output connector TxOut. The wideband combiner also includes a phase detector, which provides the phase differential of the inputs through the DP output.The unit includes 50-Ohm terminations and a heat sink for thermal dissipation.Connectors:TxA, TxB, and Tx Out are QMA type female connectors DP connector type: 4 pin microfit (3.0) Dual row (e.g. Molex 43045-0423)

System Extension module will allow for the maximum 24 carriers (TRX) by supporting 12 DTRX units.

More on this slide later..

This unit is only made for the ETSI (i.e., non-American) market. Customer feedback from the Americas was that it wasnt required. RTC gives coverage, but the ANSI market is more interested in capacity. Of course, this may change who knows? ;-)As will be seen in the next module, Configurations, this module will always require the use of a System Extension module (ESEA)The RTC (or ECxA, where x denotes the frequency band) can only be used in cabinet installations for two reasons:Its very heavy, and could not be used in a stack installation (because of earthquake provisions) or a pole configuration too much load on the plinth.No 4HU casing has been made for the Flexi family of basestations.

Note that all modules are powered from minus 48V (telecom. Standard) and generate their own power requirements internally.