3G Node B Operation & Maintenance

Delivered by BTS Field & Radio HLS Unit FY09 Q4

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1. Introduction to UMTS

2. WCDMA Network Overview

3. Iub Interface

4. Types of Huawei Node B in the MTNN 3G Network

5. BTS3812E Hardware System

6. DBS3800 Hardware System

7. DBS3900 Hardware System

8. Node B Operation and Maintenance System.

8. Common Node B Faults

9. Daily and Weekly Node B Maintenance

10. 1st and 2nd Line Supports (3G NOC FO, BO and RHLS)

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COURSE OUTLINE

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INTRODUCTION TO UMTS

INTRODUCTIONUMTS(3G) is a WCDMA based technology, as against the GSM(2G)/GPRS(2.5G) TDMA technology. It was formulated by European standard organization 3GPP, it is widely supported by global standard organization. The core network evolves on the basis of and can thus be compatible to the existing GSM/GPRS networks. It can be based on ATM, TDM, and IP technologies to evolve towards all IP network architecture.The Core network comprises the Circuit Domain (Circuit Services) and packet domain (Packet services). Based on ATM technology, the UTRAN uniformly process voice and packet services and evolves towards the IP network Architecture.

WCDMA RAN (UTRAN) – UMTS Terrestrial Radio Access NetworkNode BHandles the Radio Frequency (RF) in the cells in the WCDMA radio access network It mains function include spreading and de-spreading, modulation/de-modulation, channel coding/decoding and conversion between base-band and RF signals

RNC (Radio Network Controller)Provides the system information broadcast and system access control function.Provides radio resource management and control functions such macro diversity combination, power control and radio bearer allocationProvides such mobility functions as handover and RNC Transition

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5M band and Duplex Spacing is 190M

WCDMA BANDS

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WCDMA NETWORK OVERVIEW

Iub Interface

Control Plane

Transport NetworkControl Plane

User plane

RadioNetworkLayer

Transport Network User Plane

TransportNetworkLayer

Transport Network

User Plane

NCP CCP

A B C

CCP

NBAP

SAAL UNI AAL2 PATH

Physical Layer

ALCAP

SAAL UNI

DC

H F

P

RA

CH

FP

FA

CH

F

P PC

H F

P

ATM

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Iub Interface Protocol

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TYPES OF HUAWEI NODEB

IN MTNN 3G NETWORK

BTS3812E (Macro Indoor Cabinet / Multi sector)

DBS 3800 (Outdoor Cabinet / Multi sector)

DBS 3900 (Outdoor Cabinet / Multi sector)

BTS3812E APPEARANCE

MAFU Subrack

MTRU Subrack

Baseband Subrack

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Node B System Architecture

Environment Monitoring

device

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 & feedersubsystem

Transmission deviceDDF

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BTS3812E Coverage and Capacity

BTS3812E HARDWARE COMPOSITION

Baseband subrack

Busbar

FAN subrack

MTRU subrack

MAFU subrack

NBBIMTRU MTRU MTRU MTRU MTRU MTRU

MAFU MAFU MAFU MAFU MAFU MAFU

NFAN

Air inlet

Wireholder

Busbar

(3)

(2)

(1)

NMON

NCCU

HBBI

HULP

HULP

HULP

HULP

HULP

HULP

DLP

HDLP

NMPT

NMPT

NDTI

NA

I

HBBI (5)

HBBI

(4)

O

H

NBBIMTRU MTRU MTRU

MAFU MAFU MAFU

NFAN

Air inlet

Busbar

NCCU

NMPT

NDTI

HBBI

A Typical MTN BTS3812E Configuration

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BTS3812 XTERISTICS

BTS3812 Logical Structure

HBBI

HULP

NDTI/

NAOI

NTTA

Antenna

NTTA

Antenna

RNC

TransportSubsystem

BTS3812E cabinet

RF SubsystemBaseband

Subsystem

ControlSubsystem

MTRU

Rx0

Rx1

Tx PA

Rx path0

Rx path1

Tx path

MAFU

Du

ple

xe

rHDLP

NMPT

NMON

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BTS3812E Boards

NDTI NodeB Digital Trunk Interface

HBBI NodeB Supported HSDPA Baseband Processing and Interface

NMPT NodeB Main Processing and Timing Units

NCCU NodeB Cable Connection Unit

HULP NodeB HSDPA supported Uplink Processing Unit

HBOI NodeB Supported HSDPA Baseband Processing and Optical Interface

NAOI NodeB ATM Optical Interface

HULP Node HSDPA supported Downlink Processing unit

MAFU Multicarrier Antenna and Filter Unit

MTRU Multicarrier Transceiver Unit

NUTI NodeB Universal Digital Trunk Interface

NMON NodeB Monitor Unit

Control Subsystem

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Control Subsystem-NMPT

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Control subsystem-NMON

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Transport Subsystem

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Transport Subsystem

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NDTI-DIP Switches

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NDTI DIP Switches

NDTI DIP Switches

Baseband Subsystem

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Baseband Subsystem-HBBI

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Baseband Subsystem-HULP

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Baseband Subsystem-HDLP

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RF Subsystem

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RF Subsystem-MTRU

RF Subsystem-MAFU

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RF Subsystem 3x2 Configuration

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RF Subsystem 3x4 Configuration

Sector 0

MTRU0Tx

Rx0Rx1

MTRU1ANT B

TxRx0Rx1

Tx

Dup

lexer

Spl

iter

Rx0

Rx1 LNA

Rx2

MAFU1

Sector 2

MTRU4ANT A

TxRx0Rx1

Tx

Dup

lexer

Spl

iter

Rx0

Rx1 LNA

Rx2

MAFU4

MTRU5ANT B

TxRx0Rx1

Tx

Dup

lexer

Spl

iter

Rx0

Rx1 LNARx2

MAFU5

LNA

LNA

Sector 1

MTRU2ANT A

TxRx0Rx1

Tx

Dup

lexer

Spl

iter

Rx0

Rx1Rx2

MAFU2

MTRU3ANT B

TxRx0Rx1

Tx

Dup

lexer

Spl

iter

Rx0

Rx1 LNA

Rx2

MAFU3

LNA

HBBI 0

HBBI 1

RX Filter

RX Filter

RX Filter

RX Filter

LNA RX Filter

LNA

LNA

ANT A

Tx

Dup

lexer

Spl

iter

Rx0

Rx1Rx2

MAFU2LNA RX Filter

LNA

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Antenna and Feeder Subsystem

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Antenna

Antennastand

Jumper

JumperFeeder

Jumper

NodeBcabinet

Downlink Signal Flow

HDLP

NDTI

MTRU

MAFU

HBBI

Uu

RNC

Iub

NodeB Cabinet

UE

AntennaFeeder

NDTI

HBBI

Uu

RNC

Iub

NodeB Cabinet

UE

AntennaFeeder

MAFU

MTRU

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Uplink Signal Flow

NDTI

HBBI

Uu

RNC

Iub

NodeB Cabinet

UE

AntennaFeeder

MAFU

MTRU

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Signal Processing

NodeB Cabinet

NMPT

NDTI/NAOI

HDLP

HULP

MAFU

HBBI

MTRU

NDTI/ NAOI

RNC

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Input and Output of NodeB Configuration

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DBS3800-APPEARANCE

APM FAN

BBU3800

NodeB Mini DDF

DBS3800 Deployment (APM100)

APM DC SwitchNPSU

AC Power Input Switch

Standby Battery

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DBS3800 OVERVIEW

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DBS3800 Characteristics

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BBU3806 OVERVIEW

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BBU3806 System Structure

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BBU3806 PANEL

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BBU Transmission Interface

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BBU3806 Indicators

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BBU3806 DIP Switches

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RRU Overview

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RRU System Structure

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RRU3801C Panel

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RRU3801C Indicators

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Antenna and Feeder System

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Typical Configuration 3x1

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DBS3900 APPEARANCE

DBS3900 Deployment (APM30H) DBS3900 Deployment (APM100)

BBU3900

SLPU

AC-DC Rectifiers

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DBS3900 Overview

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DBS3900 Capacity and Characteristics

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DBS3900 Capacity and Characteristics

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BBU3900 Logical Structure

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BBU3900 Module

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DBS3900 Boards

WMPT WCDMA Main Processing and Transmission Unit

WBBPa WCDMA Baseband Processing Unit

SLPU Signal Lightning Protection Unit

UPEU Universal Power and Environment Interface Unit

UBFA Universal BBU FAN Unit

UFLP Universal FE Lightning Protection Unit

UTRP Universal Tranmission Processing Unit

UELP Universal E1/T1 Lightning Protection Unit

UEIU Universal Environment Interface Unit

BBU3900 Module-WMPT

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BBU3900 Module-WMPT

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BBU3900 Module-WMPT

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E1 Connection

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BBU3900 Module-WBBPa

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BBU3900 Module-WBBPa

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BBU3900 Module-WBBP

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BBU3900 Module-UBFA

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BBU3900 Module -UPEU

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BBU3900 Module-UPEU

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RRU3804 logical Structure

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RRU3804 Characteristics

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Appearance and Specifications RRU3804

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Panel and Port of RRU3804

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LEDs on RRU33804

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Connection of BBU3900 Cables

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Power Cable of BBU3900

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Power Cable of RRU3804

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Cable Connection of RRU3804

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Operation and Maintenance System

RNC

NodeB

NodeB

IP over Ethernet

IP over Ethernet

IPoA

IPoA

Internet/DDN

PSTN

Modem

Modem

iManager M2000LMT6

LMT5

LMT4

LMT1

LMT2

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Operation and Maintenance System

– NodeB provides two modes of operation and maintenance

• Near end operation and maintenance • Far end operation and maintenance

RNC

SNTP Server

M2000

Subnet 2 Subnet 3

IPoA local IP

IPoA Peer IP

RNC BAM IP

Subnet 5

Subnet 4

LMT 2

LMT1

Subnet 1

BTS3812E

NMPT EthernetPort IP address

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Operation and Maintenance System

O&M mode DescriptionLocal maintenance

The LMT is connected to the NodeB through the Ethernet port on the WMPT, as the LMT1 and LMT2 . Huawei NodeB default local maintenance IP address: 17.21.2.15

Remote maintenance

The LMT is connected to the NodeB through the M2000 Server and the IP over ATM (IPoA) channel between the NodeB and the RNC, as the LMT5 and LMT6

Reverse maintenance

LMT1 to maintenance the NodeB2

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To Log into the NodeB locally you must set our laptop IP in the same Subnet as Node B Near End IP

Using the NodeB LMT

Click Add; to add NodeB name and Node B IP

Click … to open Office Management

Click ok

And Close to finish adding Node name and ID

NodeBAdd User and NodeB password then click login

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NodeB LMT Interface

Command window

Output window

Browse Alarm

Click maintenance to See Window

Command output window

Generate input interfaceExecute command

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MML Command Introduction

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Common NodeB Faults

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Common NodeB Faults

TX

RX

RX

TXRNC NodeB

Step 2: Local Loop Back>> SET E1T1LOP (Loop type=local)>> DSP E1T1

Step 2: Local Loop Back>> SET E1T1LOP (Loop type=local)>> LOP E1T1 (Activate loop)>> SET E1T1LOP (Loop type=noloop)

Step 3: Remote Loopback>> DSP E1T1

Step 3: Remote Loopback>> SET E1T1LOP (Loop type=remote)

Step 1: Check Board and ports>> DSP BRD >> DSP E1T1

Step 1: Check Board and ports>> DSP BRD >> DSP E1T1

Transport network

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Common NodeB Faults

Common NodeB Faults

1. Set ALDPWRSW to power off or ON the ALD or carryout SET RXTATTEN to restore RRU Attenuation Value

2. Check Whether Alarm have cleared.

A. Yes= Alarm Cleared

B. No = Go to step 3

3. Query Alarm to see if ALM-1317 RRU VSWR ABNORMAL occurs.

A. Yes= proceed to clear alarm

B. No= Go to Step 4

4. Replace RRU.

Common NodeB Faults

Common NodeB Faults

Common Node B Faults

1. Replace the Optical Module

2. Check whether Alarm Clears

A. Yes= operation ends

B. No = Go to step 3

3. Replace Fiber Cable

Daily NodeB Maintenance

Daily NodeB Maintenance

Daily NodeB Maintenance

Daily Maintenance of NodeB

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Summary of Daily Maintenance Exercise

Weekly Maintenance of NodeB

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1ST AND 2ND LINE SUPPORTS (3G NOC FO, RHLS AND BO)

First line support: 3G NOC Front Office – 08032023253

Second line support consists of 3G Back Office and Radio HLS

Back Office: Ambrose Eyisi (08032004295)David Coker (08032006959)Ikenna Nwangwu (08032004297)

Radio HLS: Chiedozie Iwuagwu (08032004757)Micheal Ogunfowora (08032004855)Olalekan Akindele (08032008704)Lawal Babatunde Tadese (08032005004)John Matu (08032004604)Paul Egbo (08032001564)