05 HLR System Structure(CDMA)

7/27/2019 05 HLR System Structure(CDMA)

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System Architecture of

the HLR/AUC


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Agenda

Overall system structure

CPM HSM

HDM

OMM

The Agent system


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Public Land Mobile Network (PLMN)

EIRMSCMS

BTS PSTNBSC MSC

MC MC HLR VLR

AUCSMESME

PSTN

OMC

Abis A

E

F

Ai

Q C B

M C D

M

M N

Um

Summary of HLR/AUC


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Home Location RegisterHLRHLR is a central database, it stores the subscribers data and incharge of the management of mobile subscriber.

functions of HLR:

1) Storage of data

Basic service information ESN,MIN/IMSI, MDN and so on.

Supplementary service information

Service limitation

Current Location information of ms

VLR address, MSC address,etc.

And so on


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ZXC10-HLR/AUC performs external signaling switching withother functional entities via signaling No. 7.Internally, it adopts

Ethernet connection mode, and communicates via TCP/IP.

HLR/AUC serves as central data processing center in CDMAmobile communication system, implements the subscriber

service processing and subscriber data management, and

performs the signaling switching, system maintenance and

service handling with other functional entities via signaling

No. 7 .

ZXC10-HLR/AUC STRUCTURE


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HARDWARE STRUCTURE


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1 Common Channel Signaling handling subsystem(CPM)

2 Service processing subsystem(HSM)

3 Database subsystem(HDM)

3 Operation and Maintenance subsystem(OMM)

HLR/AUC consists of four parts:

Various sub-systems are connected via the high-speed Ethernet

and communicate through TCP/IP.

HARDWARE STRUCTURE


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SOFTWARE STRUCTURE

Software consists of five parts:Operation support subsystem

Signaling processing subsystem

Database subsystem

Service processing subsystem

Operation & maintenance subsystem


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Operating support subsystem

Operation&

mainte

nancesubsystem

Databasesubsystem

Service processing subsystem

Signaling processing subsystem

SOFTWARE STRUCTURE


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Agenda


CPM HSM

HDM

OMM

Service Agent


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CPM mainly performs the SS7 handling function.it realize the

reception and sending of SS7 between HLR and PLMN.

acts as an interface between HLR/AUC and other function

entities,implementing mtp,sccp,tcap functions.

exchange the messages with HSM.

CPM(CCS handling module)

H d t t f CPM


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CPM has the same hardware platform as MPM,but the switching

unit is different. The capability is 4K x 4K .

Hardware structure of CPM

DTI

No.7

COMM COMM

MP0 MP1

TNET 4K 4K synchronous switching

network

8Mbit/s

2Mbit/s


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Each CPM can insert 2 STB board at most,each STB provide 16

links.so each CPM only provide 32 links at most.

BCTN

Rack single board array diagram


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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

PW

R

B

SM

E

M

MP

MP

CO

M

M

1

CO

M

M

2

CO

M

M

3

CO

M

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4

CO

M

M

5

CO

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PE

P

D

MO

N

TN

E

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TN

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DT

DT

DT

DT

PW

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

B

C

T

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Rack single board array diagram


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Hardware structure of CPM

COMM1/2: inter-modual communication(MPMP)

COMM3/4: intra-modual communication(MPPP)

COMM5/6: STB

TNET: 32 HW 8Mb/s

HW0-HW3: for message

HW7-HW11:for DTI(slot 22-26)HW30-HW31:for selfloop

DTI board: slot 22-26,20 E1 interface


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CCS software package

CPM component

TCP/IP communication module

TCAP

module

SCCP

module

MTP

module

Message distribute module (MD)

HSMcomponent

PLMN

software structure of CPM


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1. The CPM component composed of a single SS7 front-end processor

can provide 32 SS7 links to meet requirements of 200 thousand subscriber

2. With the increase of subscribers, more SS7 front-end processors shouldbe configured. In this networking mode, one SS7 front-end processor serv

as the core, supporting 1~5 SS7 front-end processors.

Center CPM

CPM5CPM2CPM1...

2E1 2E12E1


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Agenda


CPMHSM

HDM

OMM

Service Agent


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HSM( i i d l )


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Working mode:

HSM adopts the multi-module load-sharing mode.

It consists of one or multiple service processing modules

(HSM). Multiple HSMs can work in parallel to carry outservice processing tasks, and can form redundant backup

for one another.

the link monitoring functions are set between the CPM

subsystem and the service processor. when any HSM breaksdown, other HSMs will share its load evenly.

HSM(service processing module)

HSM( i i d l )


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Processing capability:

Each service processor can handle 120 thousands subscribers.

we can smoothly expand the service processor to enhance the HLR service

processing capacity. Each time a service processor is added, the CPM components

will be automatically monitored, without affecting the normal running.

To ensure the reliability and processing capability of the system, the serviceprocessoradopts N+1 redundancy configuration and load sharing mode.

In fact,we set two HSM at least.

Node assignment:

Service processor node140~149 ,240--249


HSM( i i d l )


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HSM rack diagram



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Agenda


CPM HSM

HDM

OMM

Service Agent

HDM (D t b d l )


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Content :

Database component

Subscriber basic information

Supplementary services data

Intelligent service data

Security data

Subscriber area subscription data

HDM (Database module)

HDM (D t b d l )


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Structure :

Each HDM includes 2 hosts(sever1 and sever2)and 1shared disk chassis.

Each host contains one SCSI adaptive card, three

Ethernet cards (1, 2),.

The disk chassis provides two SCSI interfaces.

. The two hosts are interconnected via the Ethernet card 1

to form a heartbeat line. It can monitor the working status of

the opposite side at any time.


HDM (Database mod le)


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Crossover cable

Ethernet card 1

Ethernet card 2

Disk array

adapter

Disk array

adapter

Ethernet card3Ethernet card 2

Server 1 Server 2

Disk chassis

To HUB1 To HUB2 To HUB1 To HUB2

Ethernet card 3

Ethernet card 1



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IP address assignment:

Both servers of the HDM have their respective

machine names and IP address,providing externally

the same virtual machine name and IP address.and

serving externally in such capacity.




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Working mode:

Different HDM adopt distributed in storage in multiple

nodes and work in the load-sharing mode.

these two host of one node work in active/standby mode.

Storage capability:

Each node of HDM can store 500,000 subscriberss data.

.




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Operating system:

system supports multiple operationsystems (e.g., Windows

NT, UNIX etc). Databases can employ large-scale

commercial database systems such as Oracle, Sybase, andMicrosoft SQL Server etc.

It is highly recommended that the Windows NT operation

system and Microsoft SQL Server database be chosen.




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Adopts the cluster group technology and shared disk array

mode .

Disks storing data are all in the synchronous mirror mode.

When any disk is physically damaged, the whole system can

continue running normally, not affected in any way.

Data are daily backed up to the local disks or magneticmachine. Once the data break down, the system can quickly

restore the backup data of the previous day.

reliability and security of the database system is even more

important. This has to be guaranteed in technical approaches.




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HDM rack diagram




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HLR/AUC database includes the user database on the database

component, and the system management database on OMM

Server.

System management database:

stores various types of basic data necessary for the running of

the system, such as system structure configuration, system security

information, system running, operator account authority, etc.User database:

storing the opening-account information of subscriber,

subscriber services information and authentication information,

Classification of database


HLR/AUC STRUCTURE


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Service processor 2

Service processor n

Service processor 1

Reception station 2

Reception station n

Reception station 1

Maintenance

station

System managementdatabase

Mobile subscriber

database

Mobile subscriber

database

...

Reception s tation service module

System maintenance

service module

Operation & maintenance server

HLR/AUC STRUCTURE


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Agenda


CPM HSM

HDM

OMM

Service Agent

OMM (O & M module)


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O

M

MClient terminal subsystem

Sever subsystem

Service agent subsystem

OMM is used to manage HLR/AUC, mainly including the

authority management, data configuration, security

management, performance statistics, fault management,diagnosis & test, signaling tracing, version management, file

management, traffic observation, clock management and

database management.

OMM (O & M module)

OMM (O & M module)


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Server

(Windows NT server)

Client

(Windows NT client)

. . . . .Client

(Windows NT client)

background

CPM

component

service

handlingcomponent

database

component

Service agent

Foreground

OMM (O & M module)


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Agenda


CPM HSM

HDM

OMM

The Agent system

The agent system


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The agent system

Omm partsomm

serverserviceAgent

Local

ommCPM

Service

Processing

parts

Data base

partsrouter

DDN/FR/X.25/PSTN

Remote

Omm console

Remote

service AgentNetwork

Management

center

The agent system


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System architecture of service agent

The agent system


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The DBIO module in OMM manages the requests

from the agent and maintenance console, running the user

data in database node group in C/S mode, and returning

the operation results to the agent and maintenance console.

The successful operations are recorded in user log.

Access mode of service agent


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HLR/AUCDB

140129 server

204 203 205

Remote service agent

The agent can be located either at the near end, or at the far end,

realizing system accessing through different communicationmodes (X.25, the Ethernet, PSTN).

Access mode of service agent

network

X.25,

the Ethernet

PSTN

201

202


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Detailed function include:

1. Msdata:add ms,query/modify ms,delete ms,change MDN,query MS

location,query ms status;

2. Authentication

add/delete authentication data singly,query/modify authenticationdata, authentication indication;

3. Batchprocess

add/modify bulk authentication data; add /delete/modify bulk ms;


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The step of opening an account:

1. Add authentication data :single/batch

2. Add ms:

the number allocation operation means to match the MDN and MIN

and meanwhile set subscription data of the mobile subscribers.(1) input MIN and MDN

(2) set service data

(3) after correct data setting,click the ok button to add ms.


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05 HLR System Structure(CDMA)

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