hlr9820 system overview

HUAWEI TECHNOLOGIES CO., LTD.

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HUAWEI Confidential

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HLR9820V9 System Overview

ISSUE1.0

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential

HLR (Home Location Register) HLR9820 of HUAWEI consists of some element This course gives a general introduction to HLR9820


References

HLR9820V9 Product Description

HLR9820V9 System Principle


Upon completion this course, you will be able to:

Master the structure of HUAWEI HLR9820 and the functions of each part;

Know the networking and classic configuration of HLR9820

Know the basic performance parameter of HLR9820;


Chapter 1 HLR IntroductionChapter 1 HLR Introduction

Chapter 2 HLR9820V9 Chapter 2 HLR9820V9 System StructureSystem Structure

Chapter 3 Networking and ConfigurationChapter 3 Networking and Configuration

Chapter 4 Characteristic and ParametersChapter 4 Characteristic and Parameters


Position of HLR9820V9 in Mobile Network

J

LcLg

BS

BS

BS

BS

BS

BS

BSC

RNC

SGSN GGSN

MSC

SCP

IP Network

GSM/PSTN

Iu

Iu

Gn Gi

C/D

CAP

ISUP

GcGr

GMLC

Lh

LgHLR9820

SMCE

C


Interfaces Related to the HLR

NAME Relative Part Usage Type

C MSC/GMSC/SMC Provide Routing information during the call

TDM/IP/ATM

D VLR MM of CS and AUC process TDM/IP/ATM

Gr SGSN MM of PS TDM/IP/ATM

Gc GGSN CM of PS TDM/IP/ATM

J SCP Process of MAP messages TDM/IP/ATM

Lh MLC Process of MAP messages TDM/IP/ATM


MAP Protocol Stack

TCAP

SCCP

SCTP

IP

MAC

HLR

M3UA

MAP

TCAP

SCCP

SCTP

IP

MAC

M3UA

MAP

C/D/J/Gs/Gr

(b) IP

HLR

C/D/J/Gs/Gr

(a) TDM

TCAP

SCCP

MTP-1

MAP

TCAP

SCCP

MTP-1

MAP

MTP-2 MTP-2

MTP-3

MTP-3

TCAP

SCCP

SAAL

PVC

UNI/IMA

HLR

MTP3B

MAP

TCAP

SCCP

MAP

C/D/J/Gs/Gr

(C) ATM

SAAL

PVC

UNI/IMA

MTP3B


Functional Structure of the HLR9820V9

The HLR9820 consists of the SAU, HDU, SMU, and BAM from the

aspect of function.

SAU （ Signaling Access Unit ） HDU （ HLR Database Unit ） SMU （ Subscriber Management Unit ） BAM （ Back Administration Module ）

The four functional modules communicate with each other through

TCP/IP.


Functional Structure of the HLR9820V9

HDUTCP/IP

TCP/IP

LAN

IP

No.7

NSS

NSS

SMU BNH

BAMLAN

NMS

SAU TCP/IPNSS ATM 2M

SAU ： Signaling Access Unit HDU ： HLR Database UnitBAM ： Back Administration Module SMU ： Subscriber Management UnitNMS ： Network Management System BNH ： Business Hall


SAU Introduction

The SAU accesses and MAP processes the signaling messages.

The SAU implements the following functions:

Accessing the IP network, ATM 2M signaling network, or SS7 signaling network

Receiving the information sent by other functional entities to the

HLR9820.Processes signaling under MAP layer.

Transfers MAP signaling to HDU. Sending the received information to the HDU.

Sending the information of the HDU to other functional entities

The function is implemented by the OSTA1.0 board and the OSTA 1.0 subrack.


HDU Introduction

The HDU is the core database of the HLR9820. HDU has the following functions:

Stores the system configuration data, including the local HLR number, template data, number analysis data, and MAP service switch configuration data.

Stores the subscriber data, including subscriber identification data, authentication data, mobility dynamic data

Processes the map services, including the authentication, location update, sending of the routing information, SMS, and data subscription service through a mobile terminal.

The functions are implemented by the DMU, DSU, SCU, DRU in the OSTA 2.0 subrack and the disk array.


HDU Introduction

HDU comprises 5 functional modules ： SCF （ Service Control Function ） module

SMF （ Subscriber Management Function) module

DRU （ Data Routing Unit ） module

DSU （ Data Service Unit ） module

DBMS （ Database Management System ） module


SMU Introduction

The SMU manages the global data and the subscriber data in the

HLR9820.

Server provides interface to SMU client. SMU client operates

Subscriber’s data through UI interface;

Provides opened interface to BOSS. To meet the requirements of

different operation modes on the subscriber data from clients;

The function of SMU is implemented by the SMU or the BSU in

the OSTA 2.0 subrack.


BAM IntroductionThe BAM implements the following functions:

Transferring the O&M commands from the LMTs (at both the near end and

the far end) to the SAU, HDU, or SMU

Transferring the command responses from the SAU, HDU, or SMU to the

corresponding LMTs

Storing and transferring the alarm information and the performance

measurement information

Accessing the NMS

Providing the NTP function, obtaining the accurate time through time

synchronization with the NTP server, and providing NTP time synchronization

for the HLR9820

The BAM functions are implemented by the BAMs or the BSUs in the OSTA

2.0 subrack. Either two BAMs or two BSUs work in active/standby mode.


Networking Solution

The internal networking of the HLR9820 adopts the dual-network and

dual-plane system architecture. Any single point failure cannot affect

normal system running. The internal network is separated from the

external network. This ensures the system security. The internal

networking of the HLR9820 is divided into two modes:

Integration of data nodes and service nodes

Separation of data nodes and service nodes

Service nodes include the SAU, SCF, and BAM. They access and

process signaling.

Data nodes include the SMF, SMU, BAM, DRU, DSU, DBMS, and risk

array. They store and manage the subscriber data.


Integration of Data Nodes and Service Nodes


Separation of Data Nodes and Service Nodes


HLR9820V9 Networking Solution

HLR9820V9 hardware system configuration solution:

OSTA1.0 platform ＋ OSTA2.0 platform solution

The SAU function is implemented by the OSTA1.0 hardware

platform, and HDU, BAM and SMU function are implemented by

the OSTA2.0 hardware platform in the HLR9820V9.


Medium Capacity: 4 Million Subscribers





Chapter 4 System Feature and ParametersChapter 4 System Feature and Parameters


System Features

Distributed Structure

ATCA-Compatible OSTA 2.0 Hardware Platform

Memory Data Management Technology

Multi-Level Data Backup Mechanism

Virtual HLR Function

Separated Data Processing and Service Processing

Smooth Data Convergence

Standard and Open Data Access Interface

Comprehensive Data Statistics and Analysis


Abundant Services of HUAWEI HLR9820

Basic Services

Supplementary Services

GPRS Services

IN Services

LCS

Operator-Determined Barring Services

Special Services


Performance specifications of the HLR9820

Item Performance Specifications

Maximum subscribers supported 30 million subscribers (based on the GSM traffic model)

Bearer networking modes supported•TDM •TDM-2M •ATM-2M •IP

Number of 64 kbit/s signaling links supported 2,560

Number of TDM 2 Mbit/s signaling links supported 170

Number of IP signaling links supported 334

Number of ATM 2 Mbit/s signaling links supported 160

BNH command processing speed 1,000 pcs/second


Reliability specifications of the HLR9820

Item Reliability Specifications

System repair rate ≤0.3%

Availability ≥ 99.999%

Fault detection rate > 95%

Mean time to repair (MTTR) < 1 hour

Service interruption time of each upgrade or expansion ≤ 30 seconds

Average service interruption time in a year < 5 minutes

Duration from system power-on to service ready ≤ 10 minutes

Success rate of the switchover between redundancy components > 95%

Time required for the switchover between OSTA 1.0 boards ≤ 3 seconds

Time required for the switchover between OSTA 2.0 boards ≤ 10 seconds


Summary

This course basicly introduces the structure of HUAWEI HLR9820,and the functions of each part. It also introduces the basic performance parameter.

Summary

Thank You

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hlr9820 system overview

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