microsoft powerpoint - 2 -ohd906101 gu hlr9820 system overvi

1

www.huawei.com

Copyright © 2010 Huawei Technologies Co., Ltd. All rights reserved.

GU HLR9820 System

Overview

Copyright © 2010 Huawei Technologies Co., Ltd. All rights reserved. Page1

Foreword

� This course describes the system structure of the

HLR9820. It helps you to understand the HLR9820

generally.

2


References

� SingleSDB Product Manual-Product Description

� SingleSDB HLR9820V900R006 Product Manual-Feature

Description

Page2


Objectives

� Upon completion of this course, you will be able to:

� Learn the logical structure of the HLR9820, functions of

each subsystem, and the relationship between the

subsystems

� Learn the networking modes and typical configurations of

the HLR9820

� Learn the basic performance specifications of the HLR9820

3


Contents

1. Overview of the HLR9820

2. System Structure of HLR9820

3. Networking and Configuration of HLR9820

4. Service Processing Procedures of HLR

5. Features and Performance Specifications


Position of the HLR9820 in the Network

J

LcLg

BS

BS

BS

BS

BS

BS

BSC

RN C

SG SN G GSN

M SC

SCP

IP Netw ork

G SM /PSTN

Iu

Iu

Gn G i

C /D

CAP

ISUP

G cGr

G M LC

Lh

LgHLR9820

SM C

E C

4


Networking of the SingleSDB


Interfaces Supported by the HLR9820

Interface From the HLR

to

Function Bearer Type

C MSC/GMSC/S

MC

The HLR provides the routing information to the

MSC/GMSC/SMC through the C interface.

TDM/IP

D VLR The HLR interacts with the VLR through the D

interface to implement mobility management

and authentication in the circuit switched (CS)

domain.

TDM/IP

Gr SGSN The HLR interacts with the SGSN through the Gr

interface to implement mobility management in

the packet switched (PS) domain.

TDM/IP

Gc GGSN The HLR interacts with the GGSN through the

Gc interface to implement call management in

the PS domain.

TDM/IP

J SCP The HLR interacts with the SCP through the J

interface to implement CAMEL message

processing.

TDM/IP

Lh MLC The HLR interacts with the MLC through the Lh

interface to implement MAP message

processing.

TDM/IP

5


MAP Interface Protocol Stack

TCAP

SCCP

SCTP

IP

MAC

HLR

M3UA

MAP

TCAP

SCCP

SCTP

IP

MAC

M3UA

MAP

C/D/JGs/Gr

(b) IP-based

HLR

C/D/JGs/Gr

(a) TDM-based

TCAP

SCCP

MTP-1

MAP

TCAP

SCCP

MTP-1

MAP

MTP-2 MTP-2

MTP-3 MTP-3


Questions

� What are the interfaces between the HLR and the MSC,

VLR, SCP, SGSN, or GGSN?

6


Contents







Functional Structure

Logically, the HLR9820 consists of two NEs, namely, the FE (service

node) and the BE (data node).

� The FE receives signaling messages and implements service processing. It

consists of the signaling processing subsystem and O&M subsystem.

� The BE implements subscriber data storage, access, and management

functions. It consists of the subscriber data management subsystem, data

service subsystem, data storage subsystem, and O&M subsystem.

� Physically, the FE and the BE can be deployed in integrated mode or

separated mode.

� In the networking of the SingleSDB, the BE is shared by HLR

and other NEs, this course mainly introduce the HLR FE part.

7


Hardware Structure -Product Appearance

� The SingleSDB adopts Huawei N68E-22 cabinet.

� The SingleSDB adopts the OSTA 2.0 subrack

that is compatible with the ATCA.


Hardware Structure-Internal Components

The cabinets can be

classified into integrated

configuration cabinets and

expansion cabinets based

on the components installed

in the cabinets.

8


Hardware Structure

OSTA 2.0 subrack provides 3 buses: IPMB, BASE Bus, FABRIC Bus

� The intelligent platform management bus (IPMB) is the

monitoring and device management bus of the OSTA 2.0

subrack. It connects all the devices in the OSTA 2.0 subrack.

� The Base bus is the management and control bus of the OSTA

2.0 subrack. It provides a channel for software loading, alarm

reporting, and maintenance message delivery.

� The Fabric bus provides a data channel for the system service

plane. It transmits the service information of the system.


Hardware Structure-Boards

The boards can be classified into the following types

based on their position:

� Front board

� Back board

� Backplane

9


HLR9820 System Structure


Functions of the GU HLR FE

When the FEU serves as the HLR, it provides the following

functions:

� Processes and forwards signaling messages.

� Processes and forwards MTP2 and MTP3 messages of the SS7

signaling if TDM networking is adopted.

� Processes and forwards SCTP and M3UA messages if IP

networking is adopted.

� Processes SCCP, TCAP, and MAP messages, and interacts with

the data service subsystem to query or update subscriber data.

10


Functional Structure of the FE

The FE consists of the following functional modules:

� BSG: Broadband Signal Gateway

� CCU: Call Control Unit

� DSG: Data Service Gateway

� DPU: Dispatch Unit

� OMU: Operation & Maintenance Unit


Functional Structure of the Signaling Processing Subsystem

Signaling processing path

11


DPU Module

The DPU provides the following functions:

� Provides service ports for other NEs and implements port aggregation.

� Forwards the received IP packets to a proper BSG or DSG for

processing based on the quintuplet (source IP address, source port

number, destination IP address, destination port number, and protocol

number) contained in the received packets.

� Receives IP data packets from the BSG or DSG and sends them to the

peer NEs.

There are signaling plane DPUs and data plane DPUs. The signaling

plane DPUs are responsible for signaling access, and the data plane

DPUs are responsible for communication with the data service

subsystem.


DSG

The DSG provides the following functions:

� Receives the data access requests from the CCU and

forwards the requests to the data service subsystem

for processing.

� Receives the data access responses from the data

service subsystem and forwards the responses to the

CCU.

12


BSG

The BSG provides the following functions:

� On receiving TDM signaling, the BSG processes SS7 messages

to the MTP2 layer and MTP3 layer and forwards the processed

messages to the CCU.

� On receiving IP signaling, the BSG processes IP messages to the

SCTP layer and M3UA layer and forwards the processed

messages to the CCU.


CCU

The CCU receives the signaling messages sent from the BSG and implements

the protocol processing at the MAP layer.

The CCU provides the following functions:

� Processes the MAP messages, such as the location update request and Send

Routing Info (SRI) request, sent from the BSG.

� Processes the MAP message for inserting the subscriber data initiated by the

PGW during the operations such as subscriber data update and simulated

sending of the Cancel Location message.

� Interacts with the DRU to obtain the required subscriber data from the DSU or

to update the subscriber data stored in the DSU.

� Integrated with the functions of the AuC, the CCU implements the

authentication-related operations.

The functions of the CCU module are implemented by the GUFEU board. The

GUFEU boards work in load-sharing mode.

13


Interfaces Provided by the Signaling Processing Subsystem

Interface Function

Signaling interface

Through the interface, the signaling processing subsystem communicates with external NEs, such as the MSC and the STP.

• The DPU is used for receiving broadband signaling.

• The BSG is used for receiving narrowband signaling.

Data access interface

Through the interface, the FE communicates with the DRU to query or modify the data in the data service subsystem.

Subscription notification interface

Through the interface, the FE communicates with the PGW.• The FE subscribes to notification messages from the PGW.• After modifying the subscriber data, the PGW sends a notification message to the FEs.

O&M interface Each module communicates with the OMU through the NMS agent. The O&M interface is used for maintaining modules and reporting the module status and alarms.


Questions

1. Which module processes the SCCP signaling?

2. Which module processes the MAP signaling and MAP

services?

14


Answers

� 1.CCU

� 2.CCU

Page26


Contents






15


Networking solutions for different product applications


Stand-alone HLR solution

16


N+1 mated redundancy solution


2x(FE+BE) Seamless Geographic Redundancy Solution

17


Multi-FE+2BE Seamless Geographic Load-Sharing Redundancy Solution


HLR9820 Configuration Solutions

Type Number of Operations (All-IN)

SendAuthenticationInfo 10

UpdateLocation 10

SendRoutingInfo 20

SendRoutingInfo (for IN) 20

SendRoutingInfoForSM 25

GprsUpdateLocation 1

All-IN GSM traffic model

18


Small Capacity: 5 Million Subscribers


Medium Capacity: 10

Million Subscribers

19


Contents







Authentication Procedure

20


Location Update


Signaling flow for CAMEL SRI

21


Insert Subscribe Data


Contents






22


System Features

� Distributed structure

� Compatible with standard OSTA 2.0 hardware platform

� In-memory data management

� Multi-level data backup mechanism

� Smooth data convergence capability

� Standard and open data access interfaces

� Comprehensive data statistics and analysis


Services Provided by the HLR9820

� Basic services

� Supplementary services

� GPRS service

� IN service

� Location service

� Operator-Determined Barring Services

� Special services

23


Performance Specifications of the HLR9820Board Name

Back Borad Performance Description

GUFEUIP:USIA1;TDM&IP:ETIA2

If less than four GUFEU boards are configured, the N+1 backup mode is adopted; if more than four GUFEU boards are configured, the N+2 backup mode is adopted.

USRSU USIA1The USRSU boards are configured to work in 1+1 active/standby mode and function as the combined boards of the USDRU and USDSU.

USPMU USI2Two USPMU boards are configured to function as the combined boards of the USDMU and USPGW.

USPGW NoneEach USPGW board can process 2000 MML commands per second. Configuration Rules: N+1（1<=N<=5）。

OMUUSIA7 Each site is configured with two OMU boards working

in 1+1 active/standby mode.

S2600 Disk Array

NoneConfigure only one for every office.

LanSwitch

None The LAN switches allow the signaling plane and data plane to access the bearer network through different VLANs.


Reliability specifications of the SingleSDB

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Summary

This course describes the structure, functions,

and performance specifications of HLR9820.

This helps you to obtain a general

understanding of Huawei HLR.

Thank youwww.huawei.com

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