nsn flexi lte rf module installation

Nokia Siemens Networks LTE Radio access, rel. RL10, operating documentation, pre-release 02

Flexi Multiradio BTS LTE RF Module and Remote Radio Head description

DN0951745DN0951745 Issue 01 DRAFT APPROVEDApproval Date 2010-02-28

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Flexi Multiradio BTS LTE RF Module and Remote Ra-dio Head description

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The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This documentation is intended for the use of Nokia Siemens Networks customers only for the purposes of the agreement under which the document is submitted, and no part of it may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Siemens Networks. The documentation has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomes customer comments as part of the process of continuous development and improvement of the documentation.

The information or statements given in this documentation concerning the suitability, capacity, or performance of the mentioned hardware or software products are given "as is" and all liability arising in connection with such hardware or software products shall be defined conclusively and finally in a separate agreement between Nokia Siemens Networks and the customer. However, Nokia Siemens Networks has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia Siemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which may not be covered by the document.

Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NO EVENT WILL Nokia Siemens Networks BE LIABLE FOR ERRORS IN THIS DOCUMENTA-TION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDI-RECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT.

This documentation and the product it describes are considered protected by copyrights and other intellectual property rights according to the applicable laws.

The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark of Nokia Corporation. Siemens is a registered trademark of Siemens AG.

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

Copyright © Nokia Siemens Networks 2010. All rights reserved

f Important Notice on Product Safety Elevated voltages are inevitably present at specific points in this electrical equipment. Some of the parts may also have elevated operating temperatures.

Non-observance of these conditions and the safety instructions can result in personal injury or in property damage.

Therefore, only trained and qualified personnel may install and maintain the system.

The system complies with the standard EN 60950 / IEC 60950. All equipment connected has to comply with the applicable safety standards.

The same text in German:

Wichtiger Hinweis zur Produktsicherheit

In elektrischen Anlagen stehen zwangsläufig bestimmte Teile der Geräte unter Span-nung. Einige Teile können auch eine hohe Betriebstemperatur aufweisen.

Eine Nichtbeachtung dieser Situation und der Warnungshinweise kann zu Körperverlet-zungen und Sachschäden führen.

Deshalb wird vorausgesetzt, dass nur geschultes und qualifiziertes Personal die Anlagen installiert und wartet.

Das System entspricht den Anforderungen der EN 60950 / IEC 60950. Angeschlossene Geräte müssen die zutreffenden Sicherheitsbestimmungen erfüllen.

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Table of ContentsThis document has 20 pages.

Summary of changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1 RF Module operation and main blocks . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Remote Radio Head operation and main blocks . . . . . . . . . . . . . . . . . . 11

3 RF Module and Remote Radio Head power requirements . . . . . . . . . . 13

4 RF Module and Remote Radio Head dimensions and weights . . . . . . . 15

5 RF Module interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6 Remote Radio Head interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7 RF Module and Remote Radio Head LED indications. . . . . . . . . . . . . . 19



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List of FiguresFigure 1 Exploded view of the 3-sector RF Module . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 2 Functional blocks of the 3-sector RF Module . . . . . . . . . . . . . . . . . . . . . 10Figure 3 Isometric view of the Remote Radio Head (subject to change) . . . . . . . 11Figure 4 Front panel of the 3-sector RF Module . . . . . . . . . . . . . . . . . . . . . . . . . . 17


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List of TablesTable 1 RF Module versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 2 RF bandwidths for RF Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Table 3 RRH versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 4 RF bandwidths for Remote Radio Heads . . . . . . . . . . . . . . . . . . . . . . . 12Table 5 Input voltages of the RF Module and Remote Radio Head . . . . . . . . . 13Table 6 Power consumption of the RF Module . . . . . . . . . . . . . . . . . . . . . . . . . 13Table 7 Power consumption of the Remote Radio Head (subject to change) . . 14Table 8 Dimensions and weight of the RF Module . . . . . . . . . . . . . . . . . . . . . . 15Table 9 Dimensions and weight of the Remote Radio Head (subject to change) .

15Table 10 RF Module front panel connectors, connector types and purposes . . . 16Table 11 Remote Radio Head interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table 12 RF Module core LED indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 13 RF Module fan LED indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 14 Remote Radio Head RF on/off LED indications . . . . . . . . . . . . . . . . . . 20Table 15 Remote Radio Head RRH status LED indications . . . . . . . . . . . . . . . . 20



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Summary of changes

Summary of changes Changes between document issues are cumulative. Therefore, the latest document issue contains all changes made to previous issues.

This is the first issue of the document.


7


RF Module operation and main blocks

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1 RF Module operation and main blocksThe 3-sector RF Module is a stand-alone fully operational transceiver module with inte-grated antenna filters. The RF Module is able to support one to three sectors in a Flexi Multiradio base station. The RF Module hosts the RF functionality and provides control and power supply to the Flexi Antenna Line. Radio-related signal processing is per-formed in the RF Module. The RF Module has integrated fans and Bias-Ts.

The following versions of the RF Module are available Flexi Multiradio BTS LTE:

RF Module operationSee the following figures for exploded views of the RF Module.

!

Incorrect cables and seals may not provide secured weather protection. In outdoor installations, including the outdoor cabinet, use only tested, at least IP55 class outdoor antenna jumper cables provided by Nokia Siemens Networks. This is also recom-mended for indoor installations.

Version Description

FRGP Flexi 3-sector RF Module 2100

FRHA Flexi 3-sector RF Module 2600

FRIE Flexi 3-sector RF Module 1700/2100

FRMA Flexi 3-sector RF Module 800EU

FXDA Flexi 3-sector RF Module 900

FXEA Flexi 3-sector RF Module 1800

Table 1 RF Module versions



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Figure 1 Exploded view of the 3-sector RF Module

The RF Module can support one to three sectors with the following integrated compo-nents:

• Three transceivers with TX for two carriers • Three transceivers with RX for two carriers with diversity (the carriers must be adja-

cent) • Three linear power amplifiers • Three RF filters with main and div branch • 48 V DC input power supply • Masthead amplifier and 3GPP Antenna tilt power feed and control for up to three

sectors • Interface to the System Module • Interface for chaining System Modules • Integrated fan assembly (two fans) • Full operational bandwidth support • Antenna connector interfaces • Prepared for AISG2.0

DN70550467

Front cover

External cable entry

Casing

Fan carrier

Back cover

Module core


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The 3-sector RF Module has three independent transceivers each composed of one transmitter chain and two independent uplink chains to implement uplink diversity. The unit integrates an antenna filter unit that contains three filter blocks, each composed of one duplex filter (main antenna) and RX filter (diversity antenna), providing six antenna connectors for the BTS antenna line. The transceivers can be configured independently to dual or single carrier modes.

The RF Module uses nominal 48 V DC for internal power supply.

The VSWR monitoring system is used for producing alarms for the antenna line condi-tion against alarm threshold (RRH and 3-sector RF Module). As a default setting, the minor alarm will be generated when the VSWR is 1.9 and major alarm (cell down) will be generated when the VSWR is 2.6. However, it is possible to adjust both minor and major alarm threshold between 1.5-3.5.

RF bandwidths for the RF ModuleSee the following table for RF bandwidths.

Functional blocksThe RF Module includes the following functional blocks:

• RF control block: There are interfaces from the RF control block towards the System Module through optical connection. Most unit internal connections are made from the RF control block. Signal processing and unit control functionalities are located in this block.

• TX block: Analogue RF parts are located in the TX block. • PA block: The power amplifier block amplifies TX block output signal to a specified

output power level. • RX block • Antenna filter block: Antenna filtering for TX and RX signals is done in the Antenna

filter block.

See the following figures for the functional blocks of the RF Module.

Version RF bandwidth

FRGP TX: 20 MHz

RX: 20 MHz

FRHA TX: 20 MHz

RX: 20 MHz

FRIE TX: 20 MHz

RX: 45 MHz

FRMA TX: 20 MHz

RX: 20 MHz

FXDA TX: 20 MHz

RX: 20 MHz

FXEA TX: 20 MHz

RX: 30 MHz

Table 2 RF bandwidths for RF Modules



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Figure 2 Functional blocks of the 3-sector RF Module


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Remote Radio Head operation and main blocks

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2 Remote Radio Head operation and main blocksThe Remote Radio Head (RRH) is a stand-alone fully operational transceiver module with integrated antenna filters. The RRH supports one sector in a Flexi Multiradio base station. The RRH hosts the RF functionality and provides control and power supply to the Flexi Antenna Line. The RRH does not have any fans.

Remote Radio Head types available:

• 2 TX 2 RX

The following versions of the Remote Radio Head are available:

Remote Radio Head operationSee the following figure for an isometric view of the Remote Radio Head).

Figure 3 Isometric view of the Remote Radio Head (subject to change)

The Remote Radio Head hosts the RF functionality and provides control and power supply to Flexi Antenna Line. The Remote Radio Head has the following properties:

• DC power supply for 48 VDC • Integrated Over Voltage Protection (OVP) • External alarms

Version Description

FRIF Flexi RRH 2TX 1.7/2.1

FRMB Flexi RRH 2TX 800EU

Table 3 RRH versions



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Remote Radio Head operation and main blocks

The RRH supports the VSWR monitoring system and is AISG2.0 compatible. It has two TX outputs that support a maximum of four TX carriers.

RF bandwidths for the Remote Radio HeadSee the following table for RF bandwidths.

Functional blocksThe RRH includes the following functional blocks:

• RF control block: There are interfaces from the RF control block towards the System Module through optical connection. Most unit internal connections are made from the RF control block. Signal processing and unit control functionalities are located in this block.

• TX block: Analogue RF parts are located in the TX block. • PA block: The power amplifier block amplifies TX block output signal to a specified

output power level. • RX block: the RX block includes two 2-carrier receivers. • Antenna filter block: Antenna filtering for TX and RX signals is done in the Antenna

filter block.

Version RF bandwidth

FRIF TX: 20 MHz

RX: 45 MHz

FRMB TX: 20 MHz

RX: 30 MHz

Table 4 RF bandwidths for Remote Radio Heads


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RF Module and Remote Radio Head power require-ments

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3 RF Module and Remote Radio Head power requirementsInput voltages and power consumption of the RF ModuleThe input voltages and power consumption of the RF Module are described in the tables below. The fuse needed for the RF Module is in the System Module. See Flexi Multiradio BTS LTE System Module description for more information.

Maximum power consumption values consist of power feed to MHA + antenna tilt (3x30 W with the 3-sector RF Module). Up to 150 W higher power consumption can exist in extreme conditions and in BTS output power overdrive situations. In possible short-circuit cases (for instance, antenna line) power consumption can momentarily be higher.

Property RF Module RRH

Nominal supply voltage 48 V DC 48 V DC

Input voltage range 40.5 - 57 V DC 36 - 57 V DC 1)

1) The minimum start-up voltage is 40.5 V.

Table 5 Input voltages of the RF Module and Remote Radio Head

Typical average RF Module power consumption at

3-sector RF Module

100 % RF load in 8 W mode TBD













Maximum power consumption (60W mode) including extreme temperatures and power feeding to MHAs and tilting antennas via integraded Bias-Ts.

TBD

Table 6 Power consumption of the RF Module



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RF Module and Remote Radio Head power require-ments

g The values are given for the 2.1 GHz radio frequency (RF) module. For other RF module variants, power consumption can increase by a maximum of 10 %.

Power consumption of the Remote Radio HeadThe table below lists the power consumption of the Remote Radio Head.

RF load 20+20 W mode 30+30 W mode 40+40 W mode

100% 280 W 350 W 425 W

50% 205 W 235 W 270 W

10% 130 W 140 W 150 W

Table 7 Power consumption of the Remote Radio Head (subject to change)


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RF Module and Remote Radio Head dimensions andweights

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4 RF Module and Remote Radio Head dimen-sions and weightsThe tables below list the dimensions and weights of the RF Module and the Remote Radio Head.

Property 3-sector RF Module

Height 133 mm/3U

(5.2 in)

Width 447 mm

(17.6 in)

Depth 560 mm

(22 in)

Weight

(including the core, fans and casing)

25 kg

(55.1 lb)

Table 8 Dimensions and weight of the RF Module

!

The module is heavy. Take care when lifting the module.

Property RRH

Height 460 mm

(18.11 in)

Width 300 mm

(11.81 in)

Depth 160 mm

(6.30 in)

Weight Weight 17 kg (without solar shield and mounting shroud)

(37.5 lb)

Table 9 Dimensions and weight of the Remote Radio Head (subject to change)



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RF Module interfaces

5 RF Module interfacesFront panel connectorsThe connectors on the front panel of the RF Module, their types and purposes are listed in the table below.

See also section Lightning surge requirements in the Flexi Multiradio BTS LTE installa-tion site requirements document.

The 3-sector RF Module front panel is illustrated in the following figure.

Connector Connector type Purpose

Power supply 2-pin multibeam XL con-nector

Power delivery

Grounding M8, 2 x M5 Grounding

Operational state visual indication

2 x tri-colour LED Operational state and fan status indication

Antenna connector 1 7/16 type, female RF signal interface to antenna(s)






RX Out 1…3 QMA RX signal to external output port

Optical interface Duplex LC connector Control interface to the System Module

Optical interface Duplex LC connector Chaining interface

Table 10 RF Module front panel connectors, connector types and purposes


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RF Module interfaces

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Figure 4 Front panel of the 3-sector RF Module



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Remote Radio Head interfaces

6 Remote Radio Head interfacesSee the following table for Remote Radio Head interfaces.

See also section Lightning surge requirements in the Flexi Multiradio BTS LTE installa-tion site requirements document.

Connector Connector type Purpose

Power supply 3-pole screw terminal Power delivery

Grounding M8, 2 x M5 Grounding

Operational state visual indication

2 x LED Operational state indication (Status: 3-colour LED, RF on: 2-colour LED)

Antenna connector (2 pcs) 7/16 type, female RF signal interface to antenna(s)

Optical interface (2 pcs) SFP Control interface to the System Module

EAC connector D-sub MDR14 External alarm

RET 8-pole circular Remote electrical tilt

LMP 2x15 pin header Local maintenance

RX Out (2 pcs) SMA RF external connector

Table 11 Remote Radio Head interfaces


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RF Module and Remote Radio Head LED indications

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7 RF Module and Remote Radio Head LED indi-cationsThe RF Module and Remote Radio Head have two LEDs on the front panel to indicate the operational status of the module and all fault conditions during operation. Read the information on LED indications thoroughly. A blinking red LED does not always require removing the module.

RF Module LED indicationsThe RF Module LEDs are as follows:

• one for the RF core functional block • one for the fans in the RF Module

The LED indications of the RF Module are listed and explained in the tables below.

In addition, the RF Module fan LED has an RF power ON/OFF display:

Remote Radio Head LED indicationsThe Remote Radio Head LEDs are as follows:

• one for indicating RF "on" • one for indicating RRH status

The LED indications of the Remote Radio Head are listed and explained in the tables below.

Colour Explanation

Red Module self test or reset (LED red for < 5 second) or major alarm

Red, blinking Minor alarm

Yellow Module on and waiting or blocked

Yellow, blinking SW download or configuration ongoing, module non-operational

Green Module operational (cell can be locked in RNC)

Green, blinking Module is loading software or parameters or local maintenance access when modules are operational

Table 12 RF Module core LED indications

LED mode Explanation

Blinking RF power off

Lit continuously RF power on

Green Fan is operational

Red Fan is faulty

Table 13 RF Module fan LED indications



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RF Module and Remote Radio Head LED indications

The RRHs do not have fans, therefore, there are no fan LEDs.


Blinking RF power off

Lit continuously RF power on

Table 14 Remote Radio Head RF on/off LED indications


Red Module self test or reset (LED red for < 5 second) or major alarm

Red, blinking Minor alarm

Yellow Module on and waiting or blocked

Yellow, blinking SW download or configuration ongoing, module non-operational

Green Module operational, OBSAI interface is synchronised

Green, blinking Module is loading software or parameters

Table 15 Remote Radio Head RRH status LED indications