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  • 1www.huawei.com

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

    GU HLR9820V900R006Product Description

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page2

    ForewordThe HLR9820 is shared by the Circuit Switched (CS)

    domain and the Packet Switched (PS) domain on the

    GSM or UMTS network. It provides the functions of the

    Home Location Register (HLR).

  • 2Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page3

    References HLR9820 V900R006 Description Manuals

    HLR9820V900R006 Hardware Description

    HLR9820V900R006 Software Description

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page4

    ObjectivesUpon completion of this course, you will be able to:

    Know Huawei SingleSDB solution, hardware and functional

    structure of the HLR9820, functions of the functional modules, and

    relationship between these modules

    Know services and functions of the HLR9820

    Know the reliability design of the HLR9820

    Know the features and technical specification of the HLR9820

  • 3Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page5

    Contents1. Overview of HLR98201. Overview of HLR9820

    2. HLR9820 V900R006 Features

    3. HLR9820 V900R006 System Structure

    4. HLR9820 V900R006 Services and Functions

    5. HLR9820 V900R006 Reliability Design and Technical

    Specification

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page6

    Function of the HLR/AUCThe HLR manages mobile subscriber data. In a PLMN, multiple

    HLRs may be deployed to meet actual requirements.

    The HLR stores mobile subscribers IMSIs and MSISDNs.

    The HLR also stores the information such as the location

    information (VLR number), basic service data, service

    restriction data (roaming restriction), and supplementary

    service data.

    AuC

    The AuC generates and stores encryption and authentication

    data for mobile subscribers.

  • 4Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page7

    Product Positioning The HLR9820 is used in

    Huawei SingleSDB solution.

    The network structure is

    shown as follows:

    MSC Server

    HLR9820

    SCP SMC GMLC

    Signaling

    network

    Signaling

    network

    Control layer

    Service layer

    BE

    FE

    SGSN

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page8

    Overview of the HLR9820The HLR9820 is shared by the Circuit Switched (CS) domain and the

    Packet Switched (PS) domain on the GSM or UMTS network. It

    provides the functions of the HLR. Logically, the HLR9820 consists of

    the BE and the FE, which implement independent data storage and

    service processing. The functions of the BE and the FE are as follows:

    BE

    The BE stores the subscriber data. It adds, deletes, updates, and

    queries data at the request of the FE.

    FE

    The FE processes signaling messages and service logics and obtains

    data from the BE.

  • 5Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page9

    Overview of the HLR9820 (Cont.)Based on whether an independent operations and

    maintenance unit (OMU) is configured for the FE and BE,

    the product applications for the HLR9820 are as follows:

    Integrated deployment: The FE and BE are configured

    with only one OMU.

    Separated deployment: The FE and BE are configured

    with independent OMUs.

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page10

    Integrated Deployment of the FE and BESignaling interface

    FE

    BE

    HLR9820

    (V900R006)

    O&M interface

    Provisioning

    interface

  • 6Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page11

    Separated Deployment of the FE and BE

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page12

    Protocol InterfacesThe GU-HLR provides open

    and standard interfaces. It

    supports a number of

    signaling and protocols to

    interwork with various

    devices. The GU-HLR

    features a powerful and

    flexible networking

    capability. The following

    figure shows the interfaces

    between the GU-HLR and

    other NEs.

  • 7Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page13

    Interfaces Supported by the GU-HLR in the PLMN

    Interface Interworking

    Device

    Signaling

    Protocol

    Bearer

    Type

    Physical

    Interface

    C MSC MAP IP/TDM E1/GE

    D VLR MAP IP/TDM E1/GE

    Gr SGSN MAP IP/TDM E1/GE

    Gc GGSN MAP IP/TDM E1/GE

    J SCP MAP IP/TDM E1/GE

    Lh GMLC MAP IP/TDM E1/GE

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page14

    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

    MT

    P-3

    MTP-3

  • 8Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page15

    Contents1. Overview of HLR9820

    2. HLR9820 V900R006 Features 2. HLR9820 V900R006 Features

    3. HLR9820 V900R006 System Structure

    4. HLR9820 V900R006 Services and Functions

    5. HLR9820 V900R006 Reliability Design and Technical

    Specification

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page16

    System Features1. Distributed structure

    The distributed structure allows multiple functional entities that are identical in

    a system to work in load-sharing mode to accomplish a function.

  • 9Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page17

    2. Advanced hardware platform

    The GU HLR9820 adopts the OSTA 2.0 hardware

    platform that is compatible with the Advanced

    Telecom Computing Architecture (ATCA).

    3. In-memory data management

    The memory manages all the subscriber data

    stored in the GU HLR9820. The board memory

    implements data query and data modification

    related to service processing. The external

    storage device (such as the disk array) is

    independent of service processing. It provides

    only permanent storage of data.

    4. Multi-level data backup mechanism

    The GU HLR9820 adopts the multi-level data

    backup mechanism. This mechanism enables the

    system to store subscriber data in different

    storage devices, ensuring data security.

    Local hard disk

    Disk array

    Level-2

    backup

    Slave Master

    Level-1

    backup

    Cluster

    Level-3

    backup

    System Features (Cont.)

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page18

    5. Virtual HLR function

    The virtual HLR function allows a physical HLR to

    be divided into several logical HLRs. Each logical

    HLR is equivalent to the HLR in the local network.

    6. Large capacity and high integration

    In the case of full configuration, five subracks of

    the HLR9820 can store the dynamic data of 100

    million subscribers or static data of 200 million

    subscribers.

    7. Seamless Geographic Redundancy

    Data synchronization between the GU HLR9820s in

    different places is implemented by real-time data

    duplication and periodical data consistency check.

    8. Standard and Open Data Access Interfaces

    9. Comprehensive Data Statistics and Analysis

    System Features (Cont.)

  • 10

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page19

    Contents1. Overview of HLR9820

    2. HLR9820 V900R006 Features

    3. HLR9820 V900R006 System Structure3. HLR9820 V900R006 System Structure

    4. HLR9820 V900R006 Services and Functions

    5. HLR9820 V900R006 Reliability Design and Technical

    Specification

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page20

    Contents

    3.1 HLR9820 V900R006 Hardware Structure3.1 HLR9820 V900R006 Hardware Structure

    3.2. HLR9820 V900R006 Software Structure

    3.3. HLR9820 V900R006 Board Software

    3.4. HLR9820 V900R006 Board Configuration Example

  • 11

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page21

    Advanced Hardware Platform The GU HLR9820 adopts the OSTA 2.0 hardware platform that is compatible with the

    Advanced Telecom Computing Architecture (ATCA).

    The OSTA 2.0 platform has the following advantages:

    The equipment and monitoring system comply with the carrier-class application design.

    The service plane, control plane, and management plane are physically separated. Therefore,

    the lower-layer hardware planes are not adversely affected by other planes. If the hardware

    needs to be upgraded, the software can still be used without any modification. Therefore, the

    system reliability is greatly improved.

    The components used in the OSTA 2.0 platform comply with the component selection

    specifications for carrier-class equipment and the ETSI/NEBS standards.

    The system is enhanced with the function of monitoring the system operation, hardware

    components, and external interfaces. In addition, it adopts the fault diagnosis mechanism and

    provides pre-alert when a component is in a border line state between normal operation and

    fault.

    The OSTA 2.0 platform meets the sound-proof and heat dissipation requirements for

    telecommunications equipment.

    The OSTA 2.0 platform adopts fault detection and fault isolation technologies. Therefore, the

    detected faults are isolated and will not adversely affect the running of other parts of the

    system.

    The OSTA 2.0 platform adopts optimized fault location design, which allows accurate

    identification of a faulty component.

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page22

    Hardware Structure - Product AppearanceThe GU HLR9820 adopts Huawei

    N68E-22 cabinet.

  • 12

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page23

    Based on the configuration of internal

    components, the cabinets are

    classified into integrated

    configuration cabinet and expansion

    cabinet. An integrated configuration

    cabinet is permanently numbered 0.

    Expansion cabinets are optional. Up

    to three expansion cabinets

    (numbered from 1 to 3) are

    configured for HLR9820V900R006.

    Internal components in the cabinets

    include:

    PDB

    OSTA2 subrack

    LAN switch

    Disk array

    Filler panel

    Hardware Structure - Internal Components

    Figure 1 Integrated configuration cabinet

    Figure 2 Expansion cabinet

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page24

    OSTA 2.0 Subrack - T8280

    Design standard

    NEBS GR-63-core and ETSI 300 019 CLASS 3.1

    Dimension 619.5 mm (H) x 482.6 mm x (W) x 450 mm (D)Capacity 14 standard slots (1.2 inch /slot)Structure Front boards and back boards are installed back to back, with the backplane

    in between. (The dimensions of front boards and back boards are different.)Cabling Cables are routed from the rear of the subrack. Heat dissipation

    Each subrack is equipped with two fan boxes. The fan box draws air at the front and both sides and exhausts air out through the rear of the subrack.

    Power supply -40.5 V DC to -72 V DCTemperature Long-term operating temperature: 5C to 45C

    Short-term operating temperature: -5C to +50CHumidity Long-term operating humidity: 5% RH to 85% RH

    Short-term operating humidity: 5% RH to 90% RH

    Fans

    PEM

    Front Back

  • 13

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page25

    Front structure of the subrack

    The subrack provides 14 slots for

    installing the universal process blades

    (UPBs) and switch units (SWUs).

    The backplane is located in the subrack

    and is used to transmit signals between

    boards.

    The fan boxes are located under the

    board slots. The two fan boxes can be

    maintained separately.

    The slots for the shelf management

    modules (SMMs) are located at the

    bottom front of the subrack. The SMM

    manages all the boards, fans, and power

    supplies of the subrack. Generally, two

    SMMs are configured.

    OSTA 2.0 Subrack - T8280 (Cont.)

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page26

    Rear structure of the subrack

    The subrack provides 14 slots

    for installing the universal

    service interface units (USIs) and

    switch interface units (SWIs).

    The slots for the subrack data

    modules (SDMs) are located at

    the bottom rear of the subrack.

    The SDM and the SMM are

    installed in pairs. Two SDMs can

    be configured.

    The power entry modules (PEMs)

    are located above the SDM

    boards. Each subrack has two

    PEMs, which can be maintained

    independently.

    OSTA 2.0 Subrack - T8280 (Cont.)

  • 14

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page27

    IPMB, Base, and Fabric buses are configured in OSTA 2.0 subracks.

    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 IPMB allows the SMM to manage all

    the hardware in the 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. All boards are connected to the SWU

    through the Base plane. The SWU exchanges maintenance messages

    among all the boards.

    The FABRIC bus provides a data channel for the system service plane. It

    transmits the service information of the system. All the UPBs are

    connected to the SWU through the FABRIC bus. They exchange service

    messages through the SWU.

    OSTA 2.0 Subrack - T8280 (Cont.)

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page28

    The boards can be classified into the following types based on their position:

    Front board

    The front boards, located in the front of a subrack, can be classified into the following types:

    Universal Process Blade (UPB): processes data and services by using the service applications

    running on the board.

    Switching Unit (SWU): implements layer-2 network switching and optical switching.

    System Management Unit (SMU): manages the components in a subrack.

    Back board

    The back boards, installed back-to-back with the front boards, provide interfaces for the front

    boards. The back boards can be classified into the following types:

    Universal Service Interface Unit (USI): interface board of the UPB

    Switching Interface Unit (SWI): interface board of the SWU

    Subrack Data Module (SDM): interface board of the SMM

    Backplane

    The backplane is located between the front boards and the back boards. It transmits signals

    between boards.

    Hardware Structure - Boards

  • 15

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page29

    UPB Board ClassificationThere are three types of physical UPB boards, namely, UPBA0 and UPBA2, and UPBA6.

    Each UPBA0 board is configured with no hard disk and a one 4 GB NAND Flash daughter

    board. Each UPBA2 board is configured with no daughter board and two hot-swap 2.5-

    inch SAS hard disks, with a capacity of 146 GB. Each UPBA6 board is configured with no

    daughter board and two hot-swap 2.5-inch SAS hard disks, with a capacity of 300 GB.

    Different modules are deployed on UPB boards to provide different functions. The

    following table describes the mapping between physical boards and logical boards:

    Physical

    BoardLogical Board Back Board Function

    UPBA0 GUFEU ETIA2/ETIA0/USIA1 Implement the signaling processing subsystem.

    UPBA2/UPBA6

    USDRU USIA1 Implement the data service subsystem.

    USDSU - Implement the data service subsystem.

    USDMU USI3 Implement the data storage subsystem.

    USPGW USIA1 Implement the provisioning gateway.

    USRSU USIA1 Implement the data service subsystem.

    USPMU USI2Implement the subscriber data management subsystem and data storage subsystem.

    OMU USIA7 Implement the O&M subsystem.

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page30

    USI Board ClassificationServing as interface boards of UPBs, the USIs provide various

    external interfaces. USIs configured with different daughter boards

    provides different interfaces. GU HLR9820 uses the following types

    of USI boards:

    Board Description

    USI2

    The board is configured with two external GE daughter boards to provide four

    Ethernet interfaces (10/100/1000M Base-T auto-sensing, RJ45 connectors).

    The board is configured with one external FC daughter board to provide two 2-

    Gbit/s FC interfaces, which support FC-AL, FC-SW, point-to-point, and 1-Gbit/s or

    2-Gbit/s autonegotiation.

    USI3

    The board is configured with one external GE daughter board to provide two

    Ethernet interfaces (10/100/1000M Base-T auto-sensing, RJ45 connectors).

    The board is configured with two external FC daughter boards to provide four 2-

    Gbit/s FC interfaces, which support FC-AL, FC-SW, point-to-point, and 1-Gbit/s or

    2-Gbit/s autonegotiation.

    USIA1

    The board is configured with two external GE daughter boards to provide four

    Ethernet interfaces (10/100/1000M Base-T auto-sensing, RJ45 connectors).

    USIA7

    The board is configured with three external GE daughter boards to provide six

    Ethernet interfaces (10/100/1000M Base-T auto-sensing, RJ45 connectors).

  • 16

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page31

    ETI Board ClassificationThe ETI provides various interfaces for UPBs to communicate

    with external devices. It must be configured together with

    UPBs. GU HLR9820 uses the following types of ETI boards:

    Board Description

    ETIA0

    The board is configured with two ETMA daughter boards to provide two DB-78 interfaces. Each ETMA daughter board provides 16 E1/T1 interfaces.

    ETIA2

    The board is configured with one ETMA daughter board to provide one DB-78 interface. The ETMA daughter board provides 16 E1/T1 interfaces.The board is configured with one external GE daughter board to provide two Ethernet interfaces

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page32

    SWU and SWI Boards Classification SWU boards provide the layer-2 network switching, configuration

    restoration functions and device management functions. There are

    SWUA0 and SWUA1 boards.

    SWUA1 boards implement TDM narrowband switching while SWUA0

    boards do not.

    SWI boards are back boards of SWUs. It must be configured together

    with the SWU. SWI boards provide external service and cascading

    interfaces for the SWU. There are SWIA0 and SWIA1 boards.

    Compared with SWIA0, SWIA1 boards provide 2 x line clock input and

    1 x BITS clock input.

  • 17

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page33

    Contents

    3.1 HLR9820 V900R006 Hardware Structure

    3.2. HLR9820 V900R006 Software Structure3.2. HLR9820 V900R006 Software Structure

    3.3. HLR9820 V900R006 Board Software

    3.4. HLR9820 V900R006 Board Configuration Example

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page34

    Functional Structure

    Logically, HLR9820 consists of the front end (FE) and back end (BE). The FE processes protocols

    and services. The BE stores, queries, and manages subscriber data.

    In terms of functions, the UIM consists of five functional subsystems, the signaling processing

    subsystem, the subscriber data management subsystem, the data service subsystem, the data

    storage subsystem, and the O&M subsystem.

  • 18

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page35

    Signaling Processing SubsystemThe signaling processing subsystem provides the following functions:

    The signaling processing subsystem receives and processes signaling

    messages. It consists of the Broadband Signaling Gateway (BSG) and

    Call Control Unit (CCU).

    The BSG processes signaling messages at the MTP2 layer and MTP3

    layer and forwards the processed messages to the CCU.

    The CCU completes protocol processing at the SCCP, TCAP, and MAP

    layers, as well as service processing. It obtains subscriber data from

    the data service subsystem and modifies the subscriber data.

    The signaling processing subsystem is deployed on GUFEU boards,

    which are physically implemented by UPBA0 boards.

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page36

    Subscriber Data Management SubsystemThe subscriber data management subsystem provides the following

    functions:

    Supports centralized service provisioning for different FEs.

    Provides open Human-Machine Language (MML) and Simple Object

    Access Protocol (SOAP) interfaces.

    Supports connection from Web clients.

    Implements authentication and authority verification on the users of

    the provisioning system and Web clients.

    Manages subscription data.

    The subscriber data management subsystem is deployed on USPGW

    boards, which are physically implemented by UPBA2/UPBA6 boards.

  • 19

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page37

    Data Service Subsystem The DRU provides the data routing function.

    The subscriber data is stored in multiple DSU clusters. Based on the

    subscriber identity, the DRU identifies the DSU cluster in which the

    required subscriber data is stored, and then selects a DSU node based

    on the load balancing strategy to provide data services.

    The DSU serves as the in-memory database of the USCDB. It performs

    the functions of adding, deleting, updating, and providing data upon

    request, processing data requests, and returning the processing result.

    The data service subsystem is deployed on USDRU/USDSU boards,

    which are physically implemented by UPBA2/UPBA6 boards.

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page38

    Subscriber Storage Subsystem The data storage subsystem consists of DMU boards and the

    disk array.

    The physical database is independent of service processing. It

    provides only permanent storage of global data, subscriber

    data, and route data.

    The physical database is deployed on the DMU board, which

    connects to the disk array through fabric cables. It uses the

    Oracle database management software.

    The DMU board is physically deployed in UPBA2/UPBA6 boards.

  • 20

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page39

    O&M Subsystem The functions of the O&M subsystem are implemented by OMU

    boards. Typically, a pair of OMU boards is configured in slots 0 and 2

    in the basic subrack.

    The two OMU boards work in active/standby mode.

    Active and standby OMU boards periodically send heartbeat messages

    to each other to notify their peer nodes of their current state.

    If the FE and BE are deployed in integrated mode, the FE and BE are

    managed by the same O&M subsystem. If the FE and BE are deployed

    in separate mode, the FE and BE are managed by different O&M

    subsystems. OMU boards are physically deployed on UPBA2/UPBA6

    boards.

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page40

    Contents

    2.1 HLR9820 V900R006 Hardware Structure

    2.2. HLR9820 V900R006 Software Structure

    2.3. HLR9820 V900R006 Board Software2.3. HLR9820 V900R006 Board Software

    2.4. HLR9820 V900R006 Board Configuration Example

  • 21

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page41

    HLR9820 Board Software FE board

    GUFEU Operating system: Novell SUSE Linux Enterprise Server 10 SP3 for x86_32

    Implements the functions of the signaling processing subsystem

    Version software: GU-HLR-FE application software

    USCDB board

    USDRU Operating system: Novell SUSE LinuxImplements the functions of the data service subsystem

    Version software: USCDB application software

    USDSU Operating system: Novell SUSE LinuxImplements the functions of the data service subsystem

    Version software: USCDB application software

    USDMU Operating system: Novell SUSE Linux

    Implements the functions of the data storage subsystem

    Database: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 (Server/Client)

    Version software: USCDB application software

    USPGW Operating system: Novell SUSE LinuxImplements the functions of the data management subsystem

    Version software: USCDB application software

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page42

    USCD board

    USRSU Operating system: Novell SUSE Linux Implements the functions of the data service subsystem

    Version software: USCDB application

    software

    USPMU Operating system: Novell SUSE Linux Implements the functions of the subscriber data management and data storage subsystems

    Database: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 (Server/Client)

    Version software: USCDB application

    software

    OMU board

    OMU Operating system: Novell SUSE Linux

    Implements the functions of the O&M subsystem

    Database: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 (Server)

    Version software: OMU application

    software

    HLR9820 Board Software (Cont.)

  • 22

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page43

    Contents

    2.1 HLR9820 V900R006 Hardware Structure

    2.2. HLR9820 V900R006 Software Structure

    2.3. HLR9820 V900R006 Board Software

    2.4. HLR9820 V900R006 Board Configuration Example2.4. HLR9820 V900R006 Board Configuration Example

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page44

    Typical Configuration The following figure shows the configuration of the GU HLR9820 when USDRU and USDSU are used to support 10 million subscribers on a TDM or an IP network.

  • 23

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page45

    Contents1. Overview of HLR9820

    2. HLR9820 V900R006 Features

    3. HLR9820 V900R006 System Structure

    4. HLR9820 V900R006 Services and Functions4. HLR9820 V900R006 Services and Functions

    5. HLR9820 V900R006 Reliability Design and Technical

    Specification

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page46

    Services and Functions Provided by the HLR9820

    Mobility management

    Location update, Location cancellation, Purge of MSs,

    Authentication information sending, Authentication failure report,

    Subscriber data insertion, Subscriber data deletion, HLR fault

    recovery, VLR fault recovery, and SS indication check

    Call processing

    Routing information sending and Roaming number provision

    Supplementary service management

    Supplementary service registration, Supplementary service

    deregistration, Supplementary service activation, Supplementary

    service deactivation, Supplementary service query, Supplementary

    service password registration, and Supplementary service

    password retrieval

  • 24

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page47

    Functions Provided by the HLR9820 (Cont.)

    Subscriber data management

    Subscriber definition, Subscriber deletion, Card reissue, MSISDN

    change, MSISDN/IMSI query, Service setting/query, Dynamic

    information query, Location information modification, Alternative

    processing of the services not supported by the MSC/VLR,

    Subscriber data statistics

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page48

    Contents1. Overview of HLR9820

    2. HLR9820 V900R006 Features

    3. HLR9820 V900R006 System Structure

    4. HLR9820 V900R006 Services and Functions

    5. HLR9820 V900R006 Reliability Design and Technical 5. HLR9820 V900R006 Reliability Design and Technical

    SpecificationSpecification

  • 25

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page49

    Hardware Reliability Redundancy and backup design

    Reliable power supply

    Distributed structure of boards

    IP-based dual-plane communication

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page50

    Software Reliability Distributed Structure of Software Modules

    Flow Control

    Automatic Load Balancing

    Automatic Fault Detection and Self-Healing

    Switchover upon Failure

    Rollback upon Upgrade Failure

    In-Memory Data Management

    Distributed Storage of Subscriber Data

    Backup and Restoration of Subscriber Data

    Data Consistency Check

  • 26

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page51

    Performance Specifications Item Specifications

    Maximum number of subscribers

    supported

    100 million dynamic

    subscribers/200 million static

    subscribers

    Bearer networking modes

    supported

    IP/TDM

    Maximum number of 64 kbit/s

    TDM links supported

    11,776

    Maximum number of 2 Mbit/s

    TDM links supported

    736

    Maximum number of SCCP links 11,776

    Maximum command processing

    speed of the provisioning system

    (in full configuration)

    10,000

    Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page52

    Cabinet Specifications Item Specifications

    Model N68E-22 server cabinet

    Power supply -48 V DC

    Dimensions (height x width x depth) 2200 mm x 600 mm x 800 mm (86.61 in. x 23.62 in. x 31.50 in.)

    Available height in the cabinet 46 U (1 U = 44.45 mm = 1.75 in.)

    Weight of the empty cabinet 100 kg (220.5 lb)

    Weight of a fully-loaded integrated configuration cabinet

    290kg

    Weight of a fully-loaded expansion cabinet

    325kg

    Load-bearing capacity of the floor in the equipment room

    600 kg/m2 (1323 lb/m2)

    Required floor space 0.48 m2 (5.17 ft2)

    Heat dissipation 12771.8 BTU

    Cabling modes supported Overhead cabling and underfloor cabling

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