W-CDMA Alcatel-Lucent 9341 Remote Radio Head | W-CDMA UA06 Technical Description for RRH -48 V RRH TD FOR -48 V 401-382-977UA06 ISSUE 0.2 SEPTEMBER 2008 Alcatel-Lucent – Proprietary This document contains proprietary information of Alcatel-Lucent and is not to be disclosed or used except in accordance with applicable agreements. See notice on first page PRELIMINARY PRELIMINARY
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W-CDMAAlcatel-Lucent 9341 Remote Radio Head | W-CDMA UA06Technical Description for RRH -48 V
RRH TD FOR -48 V401-382-977UA06
ISSUE 0.2SEPTEMBER 2008
Alcatel-Lucent – ProprietaryThis document contains proprietary information of Alcatel-Lucent andis not to be disclosed or used except in accordance with applicableagreements.
See notice on first page
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Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of Alcatel-Lucent. All other trademarks are the property of theirrespective owners.
The information presented is subject to change without notice. Alcatel-Lucent assumes no responsibility for inaccuracies contained herein.
Every effort has been made to ensure that the information contained in this document was complete and accurate at the timeof printing.Nevertheless, the authors retain the right to modify the information. This customer document describes all the hardware units and functionsknown at the present time. Descriptions may be included for units which are not present at the customer site. The exact scope of delivery isdescribed in the respective purchase contract.
Conformance statements
None.
Ordering information
The order number for this information product is 401-382-977UA06. To order documentation from an order entry representative use one of thefollowing numbers:
Within the United States, call 1-888-582-3688 or send emailto [email protected] (to fax an order, call 1-800-566-9568)
Within Canada, call 1-317-377-8617 or send email to [email protected]
International, call 1-317-377-8617 or send email to [email protected] (to fax an order, call 1-317-377-8616)
Technical support
For initial technical assistance, please call one of the following numbers:
North America, Central and Latin America and Asia Pacific regions:
Reason for reissue........................................................................................................................................................................ vv
How to use this information product.................................................................................................................................. vivi
How to comment........................................................................................................................................................................ viivii
Functions of the remote radio head.................................................................................................................................. 1-21-2
2 Structure of the Alcatel-Lucent 9341 Remote Radio Head
Overview of the Remote radio head................................................................................................................................. 2-22-2
Mechanical structure of the Remote Radio Head....................................................................................................... 2-52-5
Clearances around the Alcatel-Lucent RRH cabinets................................................................................................ 2-82-8
Mechanical structure of the Forem DxTMA................................................................................................................. 3-33-3
Functional overview of the DxTMA................................................................................................................................ 3-43-4
Technical data for the RRH.................................................................................................................................................. 4-24-2
Technical Data for the Forem DxTMA........................................................................................................................... 4-34-3
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About this documentAbout this document
Purpose
The purpose of this information product is to:
• Describe the role of an Alcatel-Lucent 9341 Remote Radio Head in the W-CDMAnetwork.
• Describe the interfaces of a Alcatel-Lucent 9341 Remote Radio Head.
• Describe the general functions of an Alcatel-Lucent 9341 Remote Radio Head.
• Describe the mechanical structure of an Alcatel-Lucent 9341 Remote Radio Head.
• Supply a quick reference for basic technical data.
Reason for reissue
This is the FOA issue of this Information Product (IP) for W-CDMA Release UA06.Updates for the addition of new information and corrections, in subsequent documentissues, will be summarized in this notice.
Intended audience
The audience for this information product includes:
• Node B installation technicians, maintenance technicians and maintenancespecialists
• Marketing and Sales people
• Site engineers
• Members of purchase department
• Management supporters.
The intended audience of the Technical Description are people of all professionsinterested in general technical information of the Alcatel-Lucent 9396 digital 2U for-48 V.
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How to use this information product
This information product is not intended to provide any handling instructions orprocedural information. Thus it should be used as a means of general familiarizationwith the Alcatel-Lucent Remote Radio Head and as a reference for a generalunderstanding.
Conventions used
The Node B naming has changed. The table shows the assignment of the new names:
Long name Short name Former long name Former shortname
Alcatel-Lucent 9391Macrocell Node BIndoor
9391 MacrocellID
Lucent UMTS MacrocellIndoor
MacrocellIndoor
Alcatel-Lucent 9391Macrocell Node BOutdoor
9391 MacrocellOD
Lucent UMTS ModularCell Outdoor
Modular Cell
Alcatel-Lucent 9392Compactcell Node B
9392Compactcell
Lucent UMTS MacrocellCompact
MacrocellCompact
Alcatel-Lucent 9393Microcell Node B
9393 Microcell Lucent UMTS Microcell(Type M)
Microcell
Alcatel-Lucent 9396digital 2U Node B
9396 d2U - -
The terms “Node B” and “UMTS Node B” refer to the general network element asspecified in the 3G publications.
The terms “OMC” and “UMTS OMC” refer to the general network element asspecified in the 3G publications.
The term “3G power cabinet” is used to describe the indoor power cabinet.
The term “AMP” is used to describe all types of amplifiers (iLAM, P2PAM, C2PAMetc.), regardless of frequency range.
The term “Radio” is used to describe all types of radios (UCR and MCR), regardlessof frequency range.
The term “Filter” is used to describe all types of RF filters (Duplexer, Dual Duplexeretc.), regardless of frequency range.
The term “FIMS-UT laptop” is a generic term to describe any local maintenanceterminal for any UTRAN network element.
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The terms “RMT” and “Node B RMT” are used to describe the Node B RemoteMaintenance Tool application.
The terms “LMT” and “Node B LMT” are used to describe the Node B LocalMaintenance Terminal application.
The abbreviation “3s1c” refers to the “3 sector, 1 carrier” configuration.
Measurements are shown in metric notation first followed by the imperial equivalent inparentheses, for example, 25.4 mm (1 in.).
Downlink is the signal direction from the fixed network to the mobile station.
Uplink is the signal direction from the mobile station to the fixed network.
Tasks
This information product contains reference information rather than procedures and sodoes not describe any tasks.
How to comment
To comment on this information product, go to theOnline Comment Form(http://www.lucent-info.com/comments/enus/) or e-mail your comments to theComments Hotline ([email protected]).
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Functions of the remote radio head
Overview
The remote radio head (RRH) communicates digital traffic data and control signalsover the optical fiber interface. The RRH also converts the traffic information to andfrom a suitable RF format for transmission between the RRH and the mobile station(MS) or user equipment (UE). Control signals are interpreted and applied to theinternal circuitry of the RRH. A combination of digitized voice, data and controlsignals is communicated over the optical fiber interface.
Control functions supported by the optical fiber interface include:
• Control of Antenna Line Devices (ALD) using AISG commands
• RF output power measurement
• Diversity receive path imbalance
• Internal temperature measurement
• Antenna VSWR measurement
• The ability to enable or disable the RRH
Network firmware upgrades are performed over the optical fiber interface whennecessary.
The RRH supports an optical fiber range of 15 km between the remote RRH and theBBU.
The RRH obtains the system timing accuracy by recovering timing reference throughCPRI (fiber) link from the BBU system clock.
The RRH supports primary and secondary protection on all non-fiber externalinterfaces.
RRH block diagram
The following simplified block diagram shows the main functional components of theRF head:
Functions of the RRH Functions of the remote radio head
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Functions of the components of the RRH
The following topics describe the functions of the components of the RRH:
Controller
The controller contains the main microprocessor, the digital clock circuitry and theintegrated circuits of the auxiliary digital interface. It houses the digital signalprocessing engine for both transmission and reception. The digital signals areforwarded to, and received from, the radio.
A dual bidirectional high speed serial interface at 614.4 Mbps is converted to anoptical interface that connects to dual duplex optical fiber connector (Fiber 0/1).
The controller also serves the following interfaces:
• User alarms
• Maintenance (Ethernet)
• Antenna Line Device (ALD)
Radio
The radio provides the complete receiver and transmitter functionality of the RRH.
LNA
ALD TX/RX 0
-50 dB
RX 1TX
MON
AISGRET
LNA
PCU
DC
PA
ALARMS
UserAlarms
Slave
Controller
Radio
Master
Fiber 0 Fiber 1 Ether
TX Filter RX FilterRX Filter
Powerwave RFU (not used)
Functions of the RRH Functions of the remote radio head
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Power amplifier
The power amplifier (PA) is an RF-in, RF-out power amplifier with an I2C interface.An RF coupler provides the necessary information for linearization and power control.
Low noise amplifier
The low noise amplifier (LNA) provides low noise gain for both receive antenna ports,and reads the forward and reverse transmit powers from the VSWR circuit. Itcommunicates with the main microprocessor in the controller block.
PCU
The RRH can operate on one of the following power options:
• A single nominal 110 or 220 V AC input (50 or 60 Hz)
• A single nominal -48 V DC input
User Alarms
The remote RRH supports up to 6 user definable alarms with primary lightningprotection.
Functions of the RRH Functions of the remote radio head
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Overview of the Remote radio head
General
The Remote radio head (RRH) consists of integrated assemblies that realize the RFtransmission and reception portions of a UMTS air interface mobile network. The RRHaccepts RF inputs from user equipment (UE) and converts them to a digital formatsuitable for transmission to the serving base station. The RRH is a single hardwarepackage that incorporates transmit path and receive path components into a single fieldreplaceable unit. The unit interfaces to the baseband unit (BBU) via a fiber interfaceand is supplied power from either an AC or DC source, depending on the deployment.
The RRH is packaged in a weather proof housing with provision for connectors andmounting hardware. The RRH can be mounted on a tower, pole or wall.
The RRH supports up to 15 km optical fiber range between RRH and the BasebandUnit.
RF Head external interfaces
The following figure shows the external interfaces of the RRH:
The following table lists the external interfaces of the RRH:
Interface Function
Fiber interface Fiber optical interface between BBU and RRHandbetween two RRHs in daisy chaining
Maintenanceinterface
Fiber Interfaceto BBU
RF Tx/Rx0antenna
RF Rx1antenna
Fiber interface toother RF Head
RF HeadModule
AISG RETinterfaceUser alarms
Power & Ground-48
Structure of the Alcatel-Lucent 9341 Remote Radio Head Overview of the Remote radio head
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Mechanical structure of the Remote Radio Head
Overview
The Remote Radio Head (RRH) provides the RF units for the Alcatel-Lucent 9396digital 2U Node B. The RF units comprise a fibre transceiver, radio, amplifier andfilter.
The controls, connectors and indicators are located at the bottom and top of the RRH.
Airflow
The thermal design is able to cope with both the external and internal environments.The RRH is conduction cooled, and does not require cooling fans.
Outside view of the RRH
Exploded view of the RRH with solar shield:
Connection area at the bottom of the RRH
Connection area at the bottom of the RRH:
Structure of the Alcatel-Lucent 9341 Remote Radio Head Mechanical structure of the Remote Radio Head
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Clearances around the Alcatel-Lucent RRH cabinets
Minimum clearances for Remote RF Head cabinets
The following table provides the minimum clearances recommended around the RRH.
RRH cabinet Minimum clearance inmm (in.)
Comments
Front 914 (36) Installation and service access
Rear 0 (0) Zero rear clearance is allowed usingsupplied mounting brackets.
Right 600 (19.68) Air flow
Left 600 (15.75) Air flow
Top 25 (1) Air flow
Bottom 155 (6.10) Cable routing
For thermal reasons, as well as for installation and maintenance work, minimumclearances must be maintained between the cabinet and the surrounding building parts.
Structure of the Alcatel-Lucent 9341 Remote Radio Head Clearances around the Alcatel-Lucent RRH cabinets
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3 3Optional equipment
Overview
Purpose
This chapter describes the additional equipment that can be installed optionally at theNode B site, in or to the Alcatel-Lucent 9393 Microcell and 9396 digital 2U Node B.
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Functional overview of the DxTMA
DxTMA functional overview
The UMTS Diplexer Tower Mounted Amplifier (DxTMA) is used in a UMTS RadioSystem to establish an improved system noise figure referenced at the TTLNA ANTconnector and to maintain improved noise figure through the system.
The DxTMA is DC powered via the RF coaxial antenna cable installed between theDxTMA and the Node B.
The alarm status of the Low Noise Amplifier (LNA) is also transmitted via the RFcoaxial antenna cable.
The DxTMA is proteced against overload and intermodulation distortion generation bythe transmit carriers.
In case of failure the LNA is bypassed.
A µC based circuitry supervises the LNA and generates an alarm in case of failure.
DxTMA block diagram
Simplified block diagram of the DxTMA main functions:
Optional equipment Low Noise Amplifier (DxTMA)Functional overview of the DxTMA
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Function
The transmit and receive signals are separated by appropriate filters. The receive signalis amplified by a Low Noise Amplifier (LNA) and re-coupled to the common signalpath. The LNA and the µC circuitry are supplied with DC voltage over the feeder cablefrom the Node B; this voltage is coupled out by a bias circuitry.
Part Function
Bias circuitry The DC component of the signal on the feeder cablecoming from the Node B is separated from the RFcomponent in the bias circuitry. The DC voltage forsupplying the amplifier and the controller circuitry isrouted directly to the LNA and µC.
Additionally the alarms generated by the µC are coupledto the feeder cable and routed to the Node B in the biascircuitry.
µC
Optional equipment Low Noise Amplifier (DxTMA)Functional overview of the DxTMA
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Part Function
Filters Filters separate and re-couple the transmit and receivesignals from/onto one line. The filters limit the signals tothe transmit or receive bandwidth. Noise andintermodulation products are suppressed in the transmitpath. In the receive path, sidebands, and especially thetransmit signal, are suppressed. This ensures sufficientisolation between the transmit and receive path.
LNA The Low Noise Amplifier (LNA) amplifies the receivesignal.
Switches Driven by the µC circuitry each LNA is bypassed in caseof failure.
VSWR detector The Voltage Standing Wave Ratio (VSWR) detectorgenerates an alarm in case of a faulty or missing antennaconnection reflecting power back into the TTLNA.
µC The micro controller based circuitry (µC) supervises theLNA and the VSWR detector. In case of an LNA failureit bypasses the LNA and generates an according alarm. Italso generates an alarm triggered by the VSWR detector.
Optional equipment Low Noise Amplifier (DxTMA)Functional overview of the DxTMA