Huawei BSS7.0 RRU3606 Technical specifications

BSS7.0 RRU3606
CDMA Base Station
Product Description

RRU3606 CDMA Base Station
Product Description
Document Version V1.01
Product Version V400R006
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RRU3606 CDMA Base Station Product Description
Table of Contents
Chapter 1 Introduction to the RRU3606 ..........................................................................................1
1.1 Function .................................................................................................................................1
1.2 Network Structure ..................................................................................................................2
1.3 Network Interface...................................................................................................................5
Chapter 2 Key Benefits .....................................................................................................................6
2.1 Technical Features of the RRU3606 .....................................................................................6
2.2 Soft BTS.................................................................................................................................6
2.2.1 Synchronization with the Network...............................................................................6
2.2.2 Softer Handoff .............................................................................................................7
2.3 Large Coverage .....................................................................................................................7
2.3.1 Receiver Sensitivity.....................................................................................................7
2.3.2 Transmit Power (Measured at RF Port) ......................................................................7
2.3.3 Cascading with Soft BTSs...........................................................................................7
2.4 Flexible Networking ...............................................................................................................7
2.4.1 Networking Topology ..................................................................................................7
2.4.2 Clock Sources .............................................................................................................8
2.5 Easy Installation.....................................................................................................................8
2.6 Strong Environment Adaptability ...........................................................................................9
2.7 Convenient Operation and Maintenance ...............................................................................9
2.7.1 System Status Monitoring ...........................................................................................9
2.7.2 Data Configuration ......................................................................................................9
2.7.3 Alarm Processing ........................................................................................................9
2.7.4 Security Management .................................................................................................9
2.7.5 Test Function.............................................................................................................10
2.7.6 Upgrade.....................................................................................................................10
2.7.7 Auto Restart ..............................................................................................................10
2.8 Easy Upgrade and Expansion .............................................................................................10
2.8.1 Flexible Configuration ...............................................................................................10
2.8.2 Smooth Expansion ....................................................................................................10
Chapter 3 System Structure ...........................................................................................................11
3.1 Physical Structure................................................................................................................11
3.1.1 Case ..........................................................................................................................11
3.1.2 Module.......................................................................................................................11
3.2 Logical Structure ..................................................................................................................12
3.2.1 High-Speed Interface Module ...................................................................................13
3.2.2 RTRX.........................................................................................................................13
3.2.3 PA..............................................................................................................................13

RRU3606 CDMA Base Station Product Description
3.2.4 Duplexer ....................................................................................................................13
3.2.5 LNA ...........................................................................................................................13
3.3 Physical Ports ......................................................................................................................14
Chapter 4 Services and Functions ................................................................................................15
4.1 Power Control ......................................................................................................................15
4.1.1 Forward Power Control .............................................................................................15
4.1.2 Reverse Power Control .............................................................................................16
4.2 Handoff ................................................................................................................................16
4.2.1 Soft Handoff ..............................................................................................................17
4.2.2 Softer Handoff ...........................................................................................................17
4.2.3 Hard Handoff .............................................................................................................17
4.3 Radio Configuration .............................................................................................................17
4.4 Channel Configuration .........................................................................................................18
4.4.1 Forward Channels .....................................................................................................18
4.4.2 Reverse Channels.....................................................................................................19
4.5 Receiving Diversity ..............................................................................................................19
Chapter 5 Reliability........................................................................................................................21
5.1 System Reliability ................................................................................................................21
5.1.1 De-rating Design .......................................................................................................21
5.1.2 Quality Control of Components.................................................................................21
5.1.3 Thermal Design .........................................................................................................22
5.1.4 EMC Design ..............................................................................................................22
5.1.5 Reliability Measures for Input Power ........................................................................22
5.1.6 Maintainability Design ...............................................................................................22
5.1.7 Fault Monitoring and Handling ..................................................................................22
5.2 Hardware Reliability.............................................................................................................22
5.3 Software Reliability ..............................................................................................................23
5.3.1 Periodic Check on Key Resources ...........................................................................23
5.3.2 Process Monitoring ...................................................................................................23
5.3.3 Data Check................................................................................................................23
5.3.4 Fault Isolation ............................................................................................................23
5.3.5 Log Function..............................................................................................................23
Chapter 6 Operation and Maintenance .........................................................................................24
6.1 O&M Structure .....................................................................................................................24
6.1.1 Structure of the Local O&M System..........................................................................24
6.1.2 Structure of M2000 System.......................................................................................25
6.2 O&M Functions ....................................................................................................................27
6.2.1 Data Configuration Management ..............................................................................27
6.2.2 Interface Tracing .......................................................................................................27
6.2.3 Performance Management........................................................................................27
6.2.4 Alarm Management...................................................................................................28
6.2.5 Log Management ......................................................................................................28

RRU3606 CDMA Base Station Product Description
Chapter 7 Technical Specifications...............................................................................................29
7.1 Transmitter and Receiver Specifications .............................................................................29
7.1.1 Specifications in band class 0 ...................................................................................29
7.1.2 Specifications in band class 1 ...................................................................................30
7.1.3 Specifications in band class 6 ...................................................................................30
7.1.4 Specifications in band class 14 .................................................................................31
7.1.5 Specifications in band class 15 (AWS) .....................................................................32
7.2 RRU3606 Cascading Specifications....................................................................................33
7.2.1 Cascading Specifications for CDMA2000 1X ServicesError! Bookmark not defined.
7.2.2 Cascading Specifications for CDMA2000 1xEV-DO ServicesError! Bookmark not defined.
7.3 Physical and Electrical Specifications .................................................................................33
7.4 Reliability Specifications ......................................................................................................34
7.5 Compliant Safety Standards ................................................................................................34
7.6 EMC Standards....................................................................................................................34
7.7 Environment Requirements .................................................................................................36
7.7.1 Storage Environment ................................................................................................36
7.7.2 Transportation Environment......................................................................................38
7.7.3 Operation Environment .............................................................................................41
Chapter 8 Installation ......................................................................................................................44
8.1 System Installation...............................................................................................................44
8.2 System Expansion and Upgrade .........................................................................................44
Appendix Acronyms and Abbreviations ......................................................................................45

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Chapter 1 Introduction to the RRU3606
This chapter describes the following aspects of the RRU3606:
 Function
 Network Structure
 Network Interface
1.1 Function
The RRU3606 is developed by Huawei according to the TIA/EIA standards. In a
CDMA2000 1X network, the RRU3606 and the BBU3900 forms a DBS which serves a
cell or multiple logical sectors.
The functions of the RRU3606 are:
 Receiving RF signals by using an antenna, down-converting the received RF
signals to the intermediate frequency signals, implementing amplification, analog
digit conversion, digital down conversion, matched filtering, and digital automatic
gain control (DAGC) on the intermediate frequency signals, and sending the
processed intermediate frequency signals to the BBU3900
 Receiving downlink baseband data from an upper-level BBU3900, forwarding the
data of the cascaded RRU3606, implementing shaping filtering, analog digit
conversion on downlink spreading signals, and up-converting RF signals to the
transmit frequency band
 Providing multiplexing and filtering of signals transmitted and received on the RF
channel
The RRU3606 connects to the BBU3900 through an optical interface (the CPRI
interface) and communicates with an MS through the Um interface.

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1.2 Network Structure
Figure 1-1 shows the position of the RRU3606 in a CDMA network.
Figure 1-1 RRU3606/BBU3900 in a digital trunking system
Table 1-1 lists the functions of the elements in the CDMA network.
Table 1-1 Functions of the elements in the CDMA network
Element Function
Universal BaseBand
Unit (BBU)
The BBU is used to transmit and receive radio signals and
to implement the communication between the mobile
network and the MS.
RF Remote Unit
(RRU)
The RRU is used to process and transfer RF signals
between the BBU and the antenna system.
Base Transceiver
Station (BTS)
The BTS is used to transmit and receive radio signals and to
implement the communication between the mobile network
and the MS.
Huawei provides a series of BTS products.
Distributed Base
Station (DBS)
The DBS is usually composed by the baseband processing
unit, remote RF module, and auxiliary equipment. The DBS
is used to implement the functions of a BTS receiver and
transmitter.

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Element Function
Base Station
Controller (BSC)
The BSC is used to implement the following functions:
 Controlling and managing the BTSs
 Setting up and releasing call connections
 Implementing power control
 Managing radio resources
 Implementing handoffs to ensure reliable radio
connections
Mobile Switching
Center (MSC)
The MSC implements the following functions:
 Call setup
 Route selection
 Radio resource allocation
 Mobility management
 Location registration
 Channel switching within switching area
 Bill generation
 Service coordination with the PSTN
 Providing SS7 interface and network interface
Visitor Location
Register (VLR)
The VLR is a dynamic database. It stores the information of
the subscribers currently in its MSC area. The VLR is
integrated into the MSC physically.
Service Switching
Point (SSP)
The SSP is used to detect intelligent service requests, to
communicate with the SCP, and to respond to the service
request from the SCP. It allows the service logics in the SCP
to process the calls.
An SSP provides call control and service switching.
The SSP is integrated into the MSC/VLR physically.
Intelligent Peripheral
(IP)
The IP is integrated into the MSC physically as a network
functional unit. Through the internal interface, the IP
provides dedicated resource for the SSP to implement
intelligent services.
Home Location
Register (HLR)
The HLR is a database for mobile subscriber management.
It stores the subscription information, subscriber states, MS
location information, MDN, and IMSI (MIN).
Authentication
Center (AC)
The AC is used to manage the information necessary for
subscriber authentication. It is integrated with the HLR
physically.
Short Message
Center (SMC)
The SMC is used to store and forward short messages. It
also provides supplementary services related to short
messages.

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Element Function
Service Control Point
(SCP)
The SCP is the core component of the intelligent network. It
implements the following functions:
 Storing the subscriber data and service logics
 Receiving the query requests from the SSP and
querying the database to carry out decoding
 Initiating service logics according to the call event
reported by the SSP and setting up intelligent calls by
sending call control instructions to the SSP according to
service logics
Gateway Mobile
Switching Center
(GMSC)
The GMSC requests the routing information of a called
subscriber and provides interconnection and settling
between networks.
Packet Data Serving
Node (PDSN)
The PDSN is a gateway used to connect the mobile network
and the IP backbone network. It provides the access of
packet data service for mobile subscribers.
Home Agent (HA)
The HA provides the interface between the mobile network
and the Internet. It is an auxiliary node for mobile
subscribers to access the Internet. It supports downlink data
forwarding in the mobile IP tunnel mode and uplink data
forwarding through reverse tunnel.
Authentication,
Authorization and
Accounting (AAA)
The AAA server is a high-performance remote verification
server for dial-in subscribers. It provides authentication,
authorization, accounting, and data value-added services. It
supports multiple types of databases, powerful agent, and
flexible operations.
Trunk Switching
Center (TSC)
The TSC is used to process trunk call signaling and to
implement trunk call media distribution. A TSC can be
connected with multiple packet control functions (PCFs).
Group and List
Management Server
(GLMS)
The GLMS is used to manage the information about:
 Trunk group
 Trunk service subscribers
 Subscriber trunk service
 Dispatcher
 Virtual Private Network (VPN)
iGateway Bill (iGWB) The iGWB is used to collect, store, filter, sort, and send bills.
Dispatcher Server
(DPS)
The DPS is used to implement the following functions:
 Call setup and voice conversion between the Dispatcher
(DPT) and the MSE
 Call transfer and connection between the DPT and the
PSTN/PLMN
 Transfer of session control command transfer for the
DPT
 Transfer of trunk session state information
Service Maintenance
Terminal (SMT)
The SMT enables the VPN manager and the VPN operator
to manage the data of subscribers, groups, location areas,
and so on.

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Element Function
iManager M2000
(M2000)
The M2000 is the centralized management platform for
Huawei network products. It implements the following
functions:
 Centralized fault management
 Centralized performance management
 Centralized configuration management
 Centralized topology management
 Centralized security management
 System management
1.3 Network Interface
Figure 1-2 shows the standard signaling interfaces provided by the RRU3606. The
RRU3606 supports the Um and CPRI interfaces. Through these interfaces, the
RRU3606 can interwork with any Huawei BBU3900 and any standard MS/AT.
BBU: Universal BaseBand Unit AT: Access terminal MS: Mobile station
Figure 1-2 Interfaces of the RRU3606
Table 1-2 lists the interfaces of the RRU3606 and their properties.
Table 1-2 Interfaces of the RRU3606 and their properties
Interface Peer Protocol Signaling Protocol Transmission
CPRI
interface BBU3900 CPRI protocol CPRI protocol Optical interface
Um MS/AT
IS-2000-2-A,
IS-2000-3-A,
TSB2000
Air interface
protocol Radio wave

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Chapter 2 Key Benefits
This chapter describes the following features of the RRU3606:
 Technical Features of the RRU3606Soft BTS
 Soft BTS
 Large Coverage
 Flexible Networking
 Easy Installation
 Strong Environment Adaptability
 Convenient Operation and Maintenance
 Easy Upgrade and Expansion
2.1 Technical Features of the RRU3606
The RRU3606 boasts the following technical features:
 Supporting a maximum of four carriers with flexible configuration
 Supporting CDMA2000 1X and CDMA2000 1xEV-DO services
 Supporting band class 0,band class1,band class 6,band class 14,and band class
15.
 Cascading with the BBU3900 to flexibly extend the coverage of the radio network
 Using the clock resource of an upper-level BTS without use of an additional
antenna system
 High integrity, compact size, easy installation, and cost effectiveness
 Natural heat dissipation and low noise
2.2 Soft BTS
The RRU3606 cascades with the Huawei BBU3900 to realize flexible networking.
As a soft BTS, the RRU3606 has the following features.
2.2.1 Synchronization with the Network
By adopting the automatic delay compensation technology developed by Huawei, the
BBU3900 provides clock signals to the RRU3606 through optical fibers. Thus, the
RRU3606 does not require satellite antenna. This ensures synchronization within the
entire network and reduces the call drop rate during handoffs.

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2.2.2 Softer Handoff
An RRU3606 can cascade with other RRU3606s. Cells covered by the RRU3606 can
be two neighbor cells. As the RRU3606 uses the baseband resources of the BBU3900,
the intra-band handoff between the cascaded RRU3606s is a kind of softer handoff,
which can better ensure call quality.
2.3 Large Coverage
The RRU3606 can cover a wide area thanks to its excellent receiver and transmitter
performance.
2.3.1 Receiver Sensitivity
The main/diversity receiving technology is employed to optimize the receiver
performance. In RC3, the receiver sensitivity of the RRU3606 is better than –127 dBm.
2.3.2 Transmit Power (Measured at RF Port)
The RRU3606 supports a maximum cabinet-top transmit power of 50 W.
2.3.3 Cascading with Soft BTSs
Through the optical interface, an RRU3606 can cascade with BBU3900s or other
RRU3606s. Cascading with other RRU3606s can enlarge the coverage of the network.
2.4 Flexible Networking
The RRU3606 enables flexible networking and supports various networking modes by
providing various interfaces and clock resources.
2.4.1 Networking Topology
The RRU3606 supports star and chain networking topologies.

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Figure 2-1 shows a typical networking of the RRU3606.
Figure 2-1 Typical networking between the BBU3900 and the RRU3606
 Figure 2-1 takes the BBU3900 and the RRU3606 as examples.
 When the BBU3900 and RRU3606 are networked in a chain topology, one
BBU3900 can cascade with a maximum of three levels of RRU3606s, and the
distance of each level cannot exceed 20 km.
2.4.2 Clock Sources
By adopting the automatic delay compensation technology developed by Huawei, the
master BTS provides clock signals to the RRU3606. Thus, the RRU3606 does not
require satellite antenna. This ensures synchronization within the whole network and
reduces the call drop rate during handoffs.
2.5 Easy Installation
Featuring small size, light weight, and mains power support, the RRU3606 needs no
room facility, air conditioner, and special tower. It can be easily installed on a post, on a
support, or on the wall. This greatly reduces site deployment cost while maintaining
network quality.
BSC
Chain topology
Star topology
RRU3606
RRU3606
BBU3900

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2.6 Strong Environment Adaptability
The RRU3606 is designed with the protection against dust, burglar, water, and damp.
Its protection performance satisfies IP65 (IEC 60529: Degrees of protection provided
by enclosure) requirements. Thus, the RRU3606 can operate normally in different
weather conditions.
For detailed safety standards, see 7.5 "Compliant Safety Standards."
2.7 Convenient Operation and Maintenance
Operation and maintenance of the RRU3606 is implemented through the local
maintenance terminal (LMT) and the iManager M2000 mobile network management
system.
The following describes the maintenance functions.
2.7.1 System Status Monitoring
This function can show users the system operation and resource status, the
configuration and status of the local cell and logical cells.
2.7.2 Data Configuration
The RRU3606 supports dynamic data configuration. The configured data takes effect
though the BTS is not reset.
It also supports data batch processing. You can configure the common data for multiple
network elements at a time.
The data backup function is also available.
2.7.3 Alarm Processing
The alarm processing function includes:
 Alarm collection
 Alarm clearing
 Alarm querying
 Alarm shielding
 Alarm filtering
2.7.4 Security Management
The security management function includes:
 User login authentication
 Command authority restriction
 Confirmation of important operations

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 User group management
 Timeout locking
2.7.5 Test Function
The RRU3606 supports both off-line and in-service board loopback tests.
2.7.6 Upgrade
Users can upgrade the system remotely. The system can be reverted to the original
version if the upgrade fails.
The RRU3606 provides the auto loading function. When a board needs to be replaced,
if the software versions of this board and the new board are different, the software of
the new board can be upgraded automatically through the auto loading function.
2.7.7 Auto Restart
When the RRU3606 is out of service owing to power failure or transmission failure, it
can restart automatically right after the faults are cleared.
2.8 Easy Upgrade and Expansion
Thanks to its flexible configuration and modular structure, the RRU3606 can be easily
upgraded and expanded to meet different requirements.
2.8.1 Flexible Configuration
When cascading with the Huawei BTS, an RRU3606 can be configured as an
independent cell to realize flexible coverage.
The RRU3606 supports a maximum of four carriers for each sector, with flexible radio
configuration.
2.8.2 Smooth Expansion
The cascading of RRU3606s enhances the expansion of the CDMA network capacity.

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Chapter 3 System Structure
This chapter describes the system structure of the RRU3606 from the following
aspects:
 Physical Structure
 Logical Structure
 Physical Ports
3.1 Physical Structure
The RRU3606 consists of the following parts:
 Case
 Module
3.1.1 Case
The dimensions of the RRU3606 (with a case and a module) are:
Height x width x depth = 488 mm [19.21 in.] x 280 mm [11.02 in.] x 155 mm [6.10 in.]
Figure 3-1 shows the appearance of an RRU3606 case.
Figure 3-1 Appearance of an RRU3606 case
3.1.2 Module
The RRU3606 uses a single module design. The module panel of the RRU3606
consists of bottom panel, cabling panel, and indicator panel, as shown in Figure 3-2.

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(1) Bottom panel (2) Cabling panel (3) Indicator panel
Figure 3-2 Model panel of the RRU3606
3.2 Logical Structure
The RRU3606 has five logical units:
 High-speed interface module
 RTRX
 PA
 Duplexer

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 LNA
Figure 3-3 shows the logical structure of the RRU3606.
High-speed interface module
Duplexer
Figure 3-3 Logical structure of the RRU3606
3.2.1 High-Speed Interface Module
The functions of a high-speed interface module are:
 Receiving downlink baseband data from an upper-level BBU3900
 Sending uplink baseband data to an upper-level BBU3900 and forwarding data of
cascaded RRU3606s
3.2.2 RTRX
The RTRX consists of two uplink reception channels and one downlink transmission
channel. Each channel supports four carriers.
3.2.3 PA
The PA amplifies small-power RF signals sent from the RTRX.
3.2.4 Duplexer
The functions of a duplexer are:
 Multiplexing the RF channel so that the transmitted and received signals share
one antenna channel
 Filtering received and transmitted signals
3.2.5 LNA
The LNA amplifies the received signals of the antenna.

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3.3 Physical Ports
The physical ports of the RRU3606 include power supply port, transfer port, alarm port,
and PGND port. Table 3-1 lists the physical ports of the RRU3606.
Table 3-1 Physical ports of the RRU3606
Port Type Quantity Function
Power
supply port
Port for –48 V DC
power input 1 Providing –48 V DC power input
Transfer
port Optical port 2 Connecting to BBU3900s or other RRU3606s
Antenna
cable port RF signal 2 Connecting to RF antennas
PGND port Grounding screw 4 Providing grounding for the
RRU3606