5-OWK100101 BTS3812E Hardware System Structure ISSUE4.1

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    HUAWEI TECHNOLOGIES CO., LTD.

    All rights reserved

    www.huawei.com

    Internal

    OWK100101 BTS3812E Hardware

    System Structure

    ISSUE 4.1

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    As an important part of UTRAN,

    NodeB mainly processes the physicallayer of the signals of Uu interface

    BTS3812E is an indoor macro NodeB

    which is produced by Huawei Co. Ltd.

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    Upon completion of this course, you will

    be able to:

    Explain the hardware structure ofBTS3812E

    Detail the working principle of different

    subsystems and boards of BTS3812E

    Detail the signal flow in BTS3812E

    List the typical configurations of

    BTS3812E

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    Chapter 1 BTS3812E OverviewChap

    ter 1 BTS3812E Overview

    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Chapter 3 BTS3812E Typical ConfigurationChapter 3 BTS3812E Typical Configuration

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    Chapter 1 BTS3812E OverviewChap

    ter 1 BTS3812E Overview

    Section 1 StructureSection 1 Structure

    Section 2 PerformanceSection 2 Performance

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    NodeB in UMTS Network

    Iu-BC

    RNC

    RNC

    NodeB

    NodeB

    NodeB

    CS

    PS

    CBC

    UE UTRAN CN

    Uu Iu

    Iu-CS

    Iu-PS

    Iu-BC

    Iur

    Iub

    Iub

    Iub

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    NodeB System Architecture

    Environment

    Monitoringdevice

    Iub

    -48V

    Uu

    UE

    RNC

    BTS3812E cabinet

    O&M terminal

    BTS3812E System

    -48V DC power

    supply system

    GPS antenna & feeder system

    Clock synchronization source

    External reference clock

    Antenna & feeder

    subsystem

    Transmission

    device

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    BTS3812E Hardware Composition

    Baseband subrack

    Busbar

    FAN subrack

    MTRU subrack

    MAFU subrack

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    Chapter 1 BTS3812E OverviewChapter 1 BTS3812E Overview

    Section 1 StructureSection 1 Structure

    Section 2 PerformanceSection 2 Performance

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    BTS3812E Appearance

    Dimensions: 1400mm(H)*600mm(W)*600mm(D)

    Weight under full configuration:

    205kg

    The maximum powerconsumption:

    1960W

    Working voltage:

    -48V DC/24V DC/220V AC

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    BTS3812E Capacity & Coverage

    System capacity:

    Each cell can support up to:128 equivalent voice channels with

    rate of 12.2Kbit/s

    Each cabinet can support up to:12 cellsEach sector can support up to:4 carriers

    Coverage ability:

    Each carriers maximum output power of MTRU is:40W

    The receive sensitivity of single antenna is better than:-126.2dBm

    The receive sensitivity of two antennas is better than:-129.0dBm

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    BTS3812E Characteristics

    Transmission Type: E1/T1, STM-1, FE( Fast Ethernet )

    Networking mode: star, chain, tree and hybrid

    Synchronization clock sources clock extracted from

    Iub interface, GPS, external clock and local free-run

    Handover types: softer handover, soft handover andhard handover

    Services: CS (circuit domain) services, PS (packet

    domain) services , mixed services and position services

    Enhanced functions RET (Remote Electric Tilt),

    HSDPA (High Speed Downlink Packet Access), HSUPA

    (High Speed Uplink Packet Access), MBMS( Multimedia

    Broadcast and Multicast Service)

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    Chapter 1 BTS3812E OverviewChapter 1 BTS3812E Overview

    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Chapter 3 BTS3812E Typical ConfigurationChapter 3 BTS3812E Typical Configuration

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control Subsystem

    Sector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder Subsystem

    Sector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    BTS3812E Logical Structure

    Transport

    Subsystem

    Control Subsystem

    Baseband

    Subsystem

    RF

    SubsystemRNC antenna

    BTS3812E cabinet

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control Subsystem

    Sector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder Subsystem

    Sector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    Control Subsystem

    Composition

    NodeB Main Processing & Timing unit (NMPT)

    NodeB MONitor unit (NMON)

    N

    C

    C

    U

    1 2 3 4 50 6 7 8 9 10 11 12 13 14 15 16 17

    N

    M

    O

    N

    H

    B

    B

    I

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    B

    B

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    Control SubsystemNMPT

    Board number maximum configuration number is 2 working in active and standbymode

    Slot number: 10,11

    Types of NMPT with/without GPS card

    Main FunctionsManaging the entire NodeB

    Processing various kinds of signaling

    Providing system clock signals

    Connecting to a maintenance terminal directly

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    Control SubsystemNMPT

    RUN

    COM

    ETH

    ALM

    ACT

    10M

    FCLK

    GPS

    RST

    NMPT

    Label

    Indicator Color State Meaning

    RUN Green ON There is power input, but the NMPT is faulty

    OFF There is no power input or the NMPT isfaulty

    Flashing at 0.5 Hz The NMPT is functional under currentconfiguration

    Flashing fast at 4 Hz Software is being loaded to the NMPT, orthe NMPT is not configured

    ALM Red OFF The NMPT is functional

    ON /Flashing at ahigh frequency

    The NMPT is in alarm status

    ACT Green ON The NMPT is active

    OFF The NMPT is in standby mode

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    Control SubsystemNMPT

    Port Function

    10M Test port for the 10 MHz master clock

    FCLK Test port for Transmission Time Interval (TTI) frame synchronization

    signals

    GPS Port for GPS clock signals

    RST Hardware reset button

    ETH Ethernet port for maintenance

    COM Serial port for debugging

    RUN

    COM

    ETH

    ALM

    ACT

    10M

    FCLK

    GPS

    RST

    NMPT

    Label

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    Control SubsystemNMON

    Board number

    optionalmaximum configuration number is 1Slot number: 16

    Main Functions

    Providing 32-line input and 7-line output interfaces for theNodeB to monitor other equipments

    Adjusting and controlling the RET through the MAFU

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    Control SubsystemNMON

    Indicator Color State Meaning

    RUN Green ON There is power input, but the NMON isfaulty

    OFF There is no power input or the NMON isfaulty

    Flashing at 0.5 Hz The NMON is functional under currentconfiguration

    Flashing at 4 Hz Software is being loaded to the NMON or

    the NMON is not configured

    ALM Red OFF The NMON is functional

    ON/Flashing at ahigh frequency

    The NMON is in alarm status

    ACT Green ON The NMON is working

    OFF The NMON software is not activated

    Port Function

    MON Boolean input or output port

    RET RET signal control port

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control Subsystem

    Sector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder Subsystem

    Sector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    Transport Subsystem

    CompositionNodeB Digital Trunk Interface unit (NDTI)

    NodeB Universal Transport Interface unit (NUTI)

    N

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    C

    U

    1 2 3 4 50 6 7 8 9 10 11 12 13 14 15 16 17

    N

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    Transport SubsystemNDTI

    Board Number

    Maximum configuration number is 2Slot 12,13

    Interfaces of Board 8 pairs of E1/T1 ports

    Main Functions Transferring data between the NodeB and the RNC

    Providing E1/T1s to transmit ATM cells in IMA mode and UNI mode

    Extracting clock signals from the Iub interface and provides clock reference for the

    entire NodeB

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    Transport SubsystemNDTI

    Indicator Color State Meaning

    RUN Green ON Power input is available but theboard is faulty

    OFF Power input is unavailable or the

    board is faultyFlashing at 0.5 Hz The board is operational under

    current configuration

    Flashing at 4 Hz Software is being loaded or theboard is not configured

    ALM Red OFF The board is operationalON / Flashing at ahigh frequency

    The board is in an alarm status

    ACT Green ON The board is operational

    OFF The board software is not started

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    Transport SubsystemNDTI The NDTI provides nine DIP switches numbered from S3 to S11

    For informing the software S11 selects the E1 or T1 work modeand the matched impedance of the E1/T1 cables

    Hardware setting

    S3 to S6 are used to set the matched impedances

    S7 to S10 are used to set the grounding status and reserved

    S3

    S7

    1

    S5

    S4

    1

    S6

    S8

    1

    S9

    1

    S10

    1

    S11

    1

    ON

    1

    1

    1

    ON ON

    ON

    ON

    ON

    ON

    ON

    ON

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    Transport Subsystem NUTI

    Board Number

    maximum configuration number is 3Slot 12,13,14,15

    Interfaces of Board

    8 E1/T1s and 2 electrical FE ports on each NUTI

    Main Functions

    Transferring data between the NodeB and the RNC

    Supporting both ATM transport and IP transport

    Supporting 2 types of sub-boards:

    Universal E1 transport sub-board:

    Eight E1 electrical ports

    STM-1 transport sub-board:

    One channelized STM-1 optical ports

    Two unchannelized STM-1 optical ports

    Note: At present, slot 14, 15 in the baseband subrack supports only the NUTImounted with a subrack for cabling from the front

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    Transport Subsystem NUTI

    Indicator Color State Meaning

    RUN Green ON Power input is available but the board isfaulty

    OFF Power input is unavailable or the board isfaulty

    Flashing at 0.5 Hz The board is operational under currentconfiguration

    Flashing at 4 Hz Software is being loaded or the board is

    not configured

    ALM Red OFF The board is operational

    ON / Flashing at ahigh frequency

    The board is in an alarm status

    ACT Green ON The board is operational

    OFF The board software is not started

    Port Function

    FE 0 Ports for trafficThe two ports are connected to the transmission device and then to the

    RNC.The two ports are used to transmit and receive data at 100 Mbit/sFE 1

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    Transport Subsystem NUTI

    The NUTI provides one DIP switches

    For informing the software: eight E1/T1s support only one type of the matched impedance

    Digits 1 and 2 are in use, and digits 3 and 4 are reserved. S11 informs the software of

    the matched impedance setting for the E1/T1 cable

    S11 ON

    1

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control Subsystem

    Sector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder SubsystemSector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    Baseband Subsystem

    Composition

    NodeB HSDPA Baseband processing and Interface unit (HBBI)NodeB HSDPA supported Uplink Processing Unit (HULP)

    NodeB HSDPA supported Down Link Processing Unit (HDLP)

    N

    C

    C

    U

    1 2 3 4 50 6 7 8 9 10 11 12 13 14 15 16 17

    N

    M

    O

    N

    H

    B

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    Baseband SubsystemHBBI

    Board Number

    Maximum configuration number is 2

    Slot 0,1

    Main Functions

    The HBBI interfaces the RF subrack with the baseband subrack

    Process up to 128 CE equivalent voice channels for uplink, 256 CE fordownlink and support up to 3 cells

    Form the uplink resource pool with HULPs

    Form the downlink resource pool with HDLPs

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    Baseband SubsystemHBBIIndicator Color State Description

    RUN Green ON The power input is operational but the board is

    faulty

    OFF There is no power input or the board is faulty

    Flashing at 0.5 Hz The board is operational under currentconfiguration

    Flashing at 4 Hz Software is being loaded or the board is notconfigured

    ALM Red OFF The board is operational

    ON /Flashingat a highfrequency

    The HBBI is in alarm status

    ACT Green ON The board is operational

    OFF The HBBI software is not activated

    Port Function

    CPRIA Both CPRIA and CPRIB have three CPRI ports, and each port connects to oneMTRU

    The two ports connect to the BBIF0 or BBIF1 on the six MTRU panels throughcables

    CPRIB

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    Board Number Maximum configuration number is 2Slot 0,1

    Main Functions

    The HBOI provides an interface between the RRU and the baseband subrack

    in the basic cabinetProcess up to 128 CE equivalent voice channels for uplink, 256 CE for

    downlink and support up to 3 cells

    Form the uplink resource pool with HULPs

    Form the downlink resource pool with HDLPs

    Baseband SubsystemHBOI

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    Baseband SubsystemHBOI

    Indicator Color State Description

    RUN Green ON The power input is operational but the board isfaulty

    OFF There is no power input or the board is faulty

    Flashing at 0.5 Hz The board is operational under currentconfiguration

    Flashing at 4 Hz Software is being loaded or the board is notconfigured

    ALM Red OFF The board is operational

    ON /Flashing at ahigh frequency

    The HBOI is in alarm status

    ACT Green ON The board is operational

    OFF The HBOI software is not activated

    Port Function

    OPT0/1/2 Optical ports 0 to 2 connect optical cables and transmit the RRUsignals

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    Baseband SubsystemHULP

    Board Number

    maximum configuration number is 6

    Slot 2~7

    Main Functions

    Each HULP can process 128 equivalent voice channels and support 3 cells

    On the data plane, the HULP processes UL baseband data in the NodeB, including

    demodulation of common transport channels and dedicated channel, channel

    estimation, rake receiving, softer combining, and decoding

    On the control plane, the HULP completes the signaling process from the NMPT,

    transmits data such as feedback information, power control, and access

    information to the HDLP, processes AAL2 traffic data, and sends the data to the

    NUTI/NDTI

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    Baseband SubsystemHDLP

    Board Number

    maximum configuration number is 2

    Slot 8,9

    Main Functions

    Each HDLP can process 512 equivalent voice channels and support 6 cells

    Encoding and modulating the user plane data from the NUTI/NDTI

    Receiving the control plane data from the NMPT for signaling process such

    as measurement

    Receiving power control signals from the HULP for TX diversity control and

    DL power control

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control Subsystem

    Sector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder SubsystemSector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    RF Subsystem

    Composition

    NodeB Multi-carrier TRansceiver Unit (MTRU)

    Multicarrier Antenna Filter Unit (MAFU)

    NBBIMTRU MTRU MTRU MTRU MTRU MTRU

    1 2 3 4 50

    MAFU MAFU MAFU MAFU MAFU MAFU

    1 2 3 4 50

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    RF SubsystemMTRU

    Board Number

    maximum configuration number is 6

    Main Functions

    UL/DL conversion, signal amplification, filtering, A/D conversion, D/A conversion,

    digital intermediate frequency conversion, digital pre-distortion

    Each MTRU has one Tx channel and two Rx channels and supports bi-carrier

    processing

    When configure 50W amplifier the maximum output power is 40W

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    RF SubsystemMTRU

    Indicator Color State Description

    RUNGreen

    ON The version is being checked or versioncheck fails

    OFF There is no power input; the MTRU is faulty;or the number assigned for the slot hostingMTRU is invalid

    Flashingat 0.5 Hz

    The MTRU is functional under currentconfiguration

    Flashingat 4 Hz

    Software is being downloaded or uploaded;the MTRU is being initialized, or the MTRUinitialization fails

    ALM Red OFF The MTRU is functional.

    ON The MTRU is in alarm status

    ACT Green ON Version check succeeds and the TX channel

    is physically switched on

    OFF The version is being checked or versioncheck fails

    Flashingat 0.5 Hz

    Version check succeeds and the TX channelis physically switched off

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    RF SubsystemMTRU

    Port Function

    COM Communication port between the MAFU and the MTRU

    TX RF TX port

    RXA Primary RF RX port

    RXB Diversity RF RX portBBIF0 Communication port between MTRU and NBBI or HBBI

    BBIF1 Communication port between MTRU and NBBI or HBBI

    PWR Port for power supply and board position identification

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    RF SubsystemMAFU

    Board Numbermaximum configuration number is 6

    Main Functions

    Receiving RF signals from antenna and transmitting RF signals to antenna

    Supplying power to RET and TMA through feederReceiving the AISG signals from NMON, and sending them to RET through

    feeder

    Monitoring the Voltage Standing Wave Ratio (VSWR) of the antenna system

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    RF SubsystemMAFU

    Indicator Color State Description

    PWR Green OFF Power supply fails

    ON Power supply is normal

    ALM Red OFF No alarm related to LNA or ALD current is reported

    ON Alarms related to LNA or ALD current are reported

    VSWR Red OFF No VSWR alarm is reported

    ON VSWR alarms are reported

    Port Function

    RET Connects to the RET port on the NMON panel through cablesTransmits the RET control signals

    TEST_TX/RXA Test port

    RXA0, RXA1 Output port for the primary RX channel

    RXB Output port for the RX diversity channel

    TX TX signal input port

    PWR/COM Power and communication port

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    RF Subsystem 32 Configuration

    HBBI 0

    MTRU0ANT ATx

    Rx0

    Rx1

    Tx

    Duplexer

    Sp

    lite

    rRx0

    Rx1 LNA

    Rx2 LNAANT B

    MAFU0

    HBBI 1

    MTRU4ANT A

    Tx

    Rx0

    Rx1

    Tx

    Dup

    lex

    er

    Sp

    lit

    erRx0

    Rx1 LNA

    Rx2LNA

    ANT BMAFU4

    MTRU2ANT A

    Tx

    Rx0

    Rx1

    Tx

    Dupl

    exer

    Sp

    lite

    rRx0

    Rx1 LNA

    Rx2LNA

    ANT BMAFU2

    Sector 0

    Sector 2

    Sector 1

    RX Filter

    RX Filter

    RX Filter

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control SubsystemSector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder SubsystemSector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    Antenna and Feeder Subsystem

    Antenna

    NTTA

    Antenna

    stand

    Jumper

    Jumper Feeder

    Jumper

    NodeB

    cabinet

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    Feeder

    Rules of choosing Feeders :

    7/8" feeders used for the distance shorterthan 40 m

    5/4" feeders used for the distance longer

    than 40 m

    1/2" super-flexible cables are used to

    connect:

    Antennas and main feeders

    Antennas and TMAs Cabinet and main feeders

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    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Sector 1 Logical StructureSector 1 Logical Structure

    Sector 2 Control SubsystemSector 2 Control SubsystemSector 3 Transport SubsystemSector 3 Transport Subsystem

    Sector 4 Baseband SubsystemSector 4 Baseband Subsystem

    Sector 5 RF SubsystemSector 5 RF Subsystem

    Sector 6 Antenna & Feeder SubsystemSector 6 Antenna & Feeder SubsystemSector 7 Power Supply & Lightning ProtectionSector 7 Power Supply & Lightning Protection

    Sector 8 Signal FlowSector 8 Signal Flow

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    Power Supply

    Fan

    M

    AF

    U

    M

    AF

    U

    M

    AF

    U

    M

    AF

    U

    M

    AF

    U

    M

    AF

    U

    M

    T

    R

    U

    M

    T

    R

    U

    M

    T

    R

    U

    M

    T

    R

    U

    M

    T

    R

    U

    M

    T

    R

    U

    N

    C

    C

    P

    PWR

    PWR/

    COM

    PWR

    P7

    P8

    P9

    P10

    P11

    P12

    P13

    P14

    P15

    P15

    P14P13P12P10P9P8

    P7.1P7.2P7.3P7.4P7.5P7.6

    P11

    PWR

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    Lightning Protection

    45 degree 45 degree

    antenna

    Tower Feeder

    lightning

    arrester

    grounding clip

    grounding clip

    outdoor grounding bar

    grounding point

    indoor protecting ground

    copper bar

    lightning

    arrester

    NodeB

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    BTS3812E Logical Structure

    HBBI

    HULP

    NDTI/

    NTTA

    Antenna

    NTTA

    Antenna

    RNC

    Transport

    Subsystem

    BTS3812E cabinet

    RF

    SubsystemBasebandSubsystem

    Control

    Subsystem

    MTRU

    Rx0

    Rx1

    Tx PA

    Rx path0

    Rx path1

    Tx path

    MAFU

    Dup

    lexer

    HDLP

    NMPT

    NMON

    NUTI

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    H

    D

    L

    P

    N

    D

    T

    I

    MT

    R

    U

    MA

    F

    U

    H

    B

    B

    I

    Uu

    RNC

    Iub

    NodeB Cabinet

    UE

    Antenna

    Feeder

    N

    D

    T

    I

    H

    B

    B

    I

    Uu

    RNC

    Iub

    NodeB Cabinet

    UE

    Antenna

    Feeder

    MA

    F

    U

    MT

    R

    U

    Signal Flow of Downlink Services

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    Signal Flow of Signaling Processing

    NodeB Cabinet

    NMPT

    NDTI/

    NUTI

    HDLP

    HULP

    MAFU

    HBBI

    MTRU

    NDTI/

    NUTI

    RNC

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    Chapter 1 BTS3812E OverviewChapter 1 BTS3812E Overview

    Chapter 2 BTS3812E Hardware StructureChapter 2 BTS3812E Hardware Structure

    Chapter 3 BTS3812E Typical ConfigurationChapter 3 BTS3812E Typical Configuration

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    Input and Output of NodeB Configuration

    Input of NodeB Configuration (network planning parameters):

    Number of sectors

    Number of carriers, transmit power of each carrier

    Number of tributary channels in transmit diversity mode

    Number of tributary channels in receive diversity mode

    Maximum number of CEs that the NodeB supports

    Output of NodeB Configuration (hardware configuration parameters):

    Number of boards

    Layout of the slots

    Connection between the boards

    Routes between signals

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    Configuration Principles

    Basic principles:

    Minimum number of trunk cables

    Minimum number of feeders and

    antennasMinimum number of modules

    Add HBBI first when expanding capacity

    If not specified, boards of the same type

    shall be inserted in slots in an ascendingslot number sequence

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    Configuration PrincipleControl Subsystem

    NMPT

    Types of NMPT: with or without GPS card

    Numbers of NMPT: 1 without backup 2with backup

    NMON

    Numbers of NMPT: optional, can be

    configured at most 1

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    Configuration PrincipleTransport Subsystem

    NDTI

    NUTI

    Different sub-boards are configured according the need, and E1/T1

    should outlet from the front panel in the NUTI in shot 14 and 15

    IMA mode UNI mode

    Number of E1s Traffic flow / 1,859,000 Traffic flow / 1,920,000

    Number of E1 cables Number of E1s / 4 Number of E1s / 4

    Number of NDTIs Ceil (number of E1s / 8)

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    Configuration PrincipleRF Subsystem

    MTRU

    Must configure at least one , up to six Each MTRU can support bi-carriers processing

    MAFU

    Number of MAFU Number of MTRU

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    11 Configuration

    Configuration Requirements2-way receive diversity

    No transmit diversity

    The output power on

    cabinet top is 40 W/carrier

    No cascading

    NBBIMTRU

    MAFU

    NFAN

    Air inlet

    Wireholder

    b

    u

    s

    ba

    r

    NM

    ON

    NC

    CU

    HB

    BI

    HB

    BI

    NM

    PT

    NM

    PT

    ND

    TI

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    31 Configuration

    Configuration Requirements

    2-way receive diversity

    No transmit diversity

    The output power on cabinet

    top is 40 W/carrier

    No cascading

    NBBIMTRU MTRU MTRU

    MAFU MAFU MAFU

    NFAN

    Air inlet

    Wireholder

    b

    u

    s

    b

    a

    r

    NM

    ON

    NC

    CU

    HB

    BI

    HB

    BI

    HU

    LP

    HD

    LP

    NM

    PT

    NM

    PT

    ND

    TI

    ND

    TI

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    32 Configuration

    Configuration Requirements2-way receive diversity

    No transmit diversity

    The output power on cabinet

    top is 20 W/carrier

    No cascading

    NBBIMTRU MTRU MTRU

    MAFU MAFU MAFU

    NFAN

    Air inlet

    Wireholder

    b

    u

    s

    b

    ar

    NMO

    N

    NCC

    U

    HBB

    I

    HBB

    I

    HUL

    P

    HUL

    P

    HUL

    P

    HUL

    P

    HDL

    P

    HDL

    P

    NMP

    T

    NMP

    T

    NDT

    I

    NDT

    I

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    34 Configuration

    Configuration Requirements

    2-way receive diversity

    No transmit diversity

    The output power on cabinet top

    is 20 W/carrier

    No cascading

    NBBIMTRU MTRU MTRU MTRU MTRU MTRU

    MAFU MAFU MAFU MAFU MAFU MAFU

    NFAN

    Air inlet

    Wireholder

    b

    u

    s

    b

    a

    r

    NMON

    NCCU

    HBBI

    HBBI

    HULP

    HULP

    HULP

    HULP

    HULP

    HULP

    HDLP

    HDLP

    NMPT

    NMPT

    NDTI

    NDTI

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