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GSM-R HLR9820 V900R003 Feature

Description

Issue 1.0

Date 2013-02-25

HUAWEI TECHNOLOGIES CO., LTD.

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Copyright Huawei Technologies Co., Ltd. 2009. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without

prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other

trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

The purchased products, services and features are stipulated by the commercial contract made

between Huawei and the customer. All or partial products, services and features described in this

document may not be within the purchased scope or the usage scope. Unless otherwise agreed by

the contract, all statements, information, and recommendations in this document are provided AS

IS without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in

the preparation of this document to ensure accuracy of the contents, but all statements, information,

and recommendations in this document do not constitute the warranty of any kind, express orimplied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

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Huawei HLR9820 V900R003

Feature Description

Issue 1.0 (2013-02-25) Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd.

Page 3 of 177

Contents

1 Basic Features ....................................................................................................................... 4

1.1 WHFD-020000 Teleservices ................................................................................. ............................... 4

1.2 WHFD-030000 Supplementary Services ............................................................................................. 8

1.3 WHFD-040000 Operator Determined Barring (ODB) ................................................................ ....... 24

1.4 WHFD-050000 Other Services ................................................................................................... ....... 37

1.5 WHFD-060000 Mobility Services ....................................... .............................................................. 41

1.6 WHFD-070000 Call Handling Services ................................................................ ............................. 51

1.7 WHFD-080000 SS-Specific Services ............. ................................................................. .................. 54

1.8 WHFD-090000 Subscriber Data Management .......... ................................................................. ....... 60

1.9 WHFD-100000 Protocol Interfaces ............................................................ ........................................ 71

1.10 WHFD-110000 Operation and Maintenance Functions ................................................................... 75

1.11 WHFD-120000 Reliability Functions ...................... ................................................................. ....... 88

2 Optional Features ............................................................................................................ 111

2.1 WHFD-510000 CS Data Services .............................................................. ...................................... 1112.2 WHFD-520000 GPRS Services ...................................................... ................................................. 112

2.3 WHFD-030000 Supplementary Services ......................................................................................... 116

2.4 WHFD-530000 CAMEL Services ....................................... ............................................................ 121

2.5 WHFD-540000 Location Services (LCS) ........................................................................................ 125

2.6 WHFD-050000 Other Services ................................................................................................... ..... 126

2.7 WHFD-060000 Mobility Services ....................................... ............................................................ 129

2.8 WHFD-090000 Subscriber Data Management .......... ................................................................. ..... 131

2.9 WHFD-560000 Networking Functions ................................................................. ........................... 132

2.10 WHFD-570000 Enhanced Functions ............................................ ................................................. 137

2.11 WHFD-130000 Authentication Centre Functions .................................... ...................................... 164

2.12 WHFD-570403 Redundancy Functions ................................................... ...................................... 171

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1 Basic FeaturesThis document briefly describes the functions of the HLR9820, and is intended to helpthe user understand the functions of the product.

1.1 WHFD-020000 TeleservicesThe HLR9820 supports basic teleservices, which consist of the speech service

(WHFD-020100) and the short message service (WHFD-020200).

The speech service is the elementary feature of a telecom network. This service

consists of the following functions:

Telephony, that is, TS11 (WHFD-020101)

Emergency call, that is, TS12 (WHFD-020102)

The length of information sent in the short messages is short. Specified by ETSI GSM

03.40 and ETSI GSM 03.41 in ETSI GSM, a point to point (PTP) short message (SM)can have a maximum of 140 bytes in size, that is, 160 ASCII characters or 70 Chinesecharacters. A broadcast SM can have 82 bytes per page, that is, 92 ASCII characters or

41 Chinese characters. A macro broadcast message can have a maximum of 15 pagesthat are sent continuously.

The broadcast SMS allows subscribers to receive public information periodically andselectively. The PTP SMS allows subscribers to send or receive SMs at any time. The

PTP SMSs can be categorized as follows:

Short Message MT/PP, that is, TS21 (WHFD-020201)

Short Message MO/PP, that is, TS22 (WHFD-020202)

1.1.1 WHFD-020101 Telephony (TS11)

Availability

This service is inherited from HLR9820 V600.

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Specification

3GPP29002 and 3GPP22003

Summary

This function enables mobile subscribers to communicate with the subscribers in the

PSTN, ISDN and PLMN over telephones.

Benefits For carriers

The function allows carriers to add subscribers to different basic service groups,and increase network traffics volume, thus increasing the revenue.

For subscribers

The function allows the subscriber to enjoy basic voice service.

Description

The HLR9820 supports subscription and modification of this service. When a

subscriber subscribes to the service and updates his/her location, the HLR sends thedata of the service to the VLR. When a subscriber withdraws the service, the HLR

initiates the subscriber data deletion flow to the VLR.

Dependency

The HLR9820 implements the function independently. There is no special requirement

for other NEs.

1.1.2 WHFD-020102 Emergency Call (TS12)

Availability


Specification

3GPP29002 and 3GPP22003

Summary

The function allows a subscriber to make an emergency call,112 and 119 for example.When a subscriber is not registered or calls into/from the subscriber are barred, the

subscriber can make an emergency call.


The function allows a subscriber to make an emergency call,

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For subscribers

The function allows the subscriber to make an emergency call for helps.

Description

By default, the HLR provides the emergency call service to the subscriber. When thelocation of a subscriber is updated, the HLR sends the service data to the VLR.

Dependency


for other NEs.

1.1.3 WHFD-020201 Short Message MT/PP (TS21)

Availability


Specification

3GPP29002, 3GPP23039, 3GPP23040, 3GPP23041, 3GPP24011, and 3GPP24012

Summary

The Short Message MT/PP service refers to the service that enables the short message

center (SMC) to send short messages to the MS.


This service can expand the traffic volume and increase the average revenue peruser (ARPU).

For subscribers

This service diversifies the communication modes. When voice conversation is

inconvenient, the subscriber can keep contact with others through short messages.

Description

The HLR enables a subscriber to receive short messages. When the subscriber serves

as the callee, that is, another subscriber intends to send a short message to thesubscriber and the SMC sends a message to the HLR, requesting it to provide the MSC

number or SGSN number of the callee. Upon receiving the request, the HLR returns amessage based on the subscription information and status of the subscriber.

Enhancement

To improve the success rate in receiving short messages, the HLR9820 allows you to

configure the short message transmission route for subscribers adopting the network

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Feature Description



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access mode of MSC or SGSN (the subscribers can access the network in the CS andPS domains). In the case of SGSN, the HLR carries the SGSN address in the responsemessage to the short message routing request. In the case of MSC, the HLR onlycarries the MSC address in the response message.

Dependency

The HLR9820 implements the function in compliance with standard protocols. The

SMC equipment for the service is required.

1.1.4 WHFD-020202 Short Message MO/PP (TS22)

Availability


Specification

3GPP29002, 3GPP23039, 3GPP23040, 3GPP23041, 3GPP24011, and 3GPP24012

Summary

The Short Message MO/PP service refers to the service that enables the MS to send

short message to the SMC.


This service can expand the traffic volume and increase the average revenue per

user (ARPU).

For subscribers

This service diversifies the communication modes. When voice conversation isinconvenient, the subscriber can keep contact with others through short messages.

Description

The HLR enables the MS to send short messages. When the location of a subscriber is

updated, the HLR sends the related subscription data to the VLR. When the subscribersends short messages, the VLR provides Short Message MO/PP service for the

subscriber according to the subscription information of the subscriber.

Dependency

The HLR9820 implements the function in compliance with standard protocols. The

SMC equipment for the service is required.

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Feature Description



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1.2 WHFD-030000 Supplementary Services

The HLR9820 provides standard supplementary services, including:

Call Forwarding (CF) Services(WHFD-030100)

Call Barring Services(WHFD-030200)

Number Identification Services(WHFD-030300)

The supplementary services of the optional function include:

Call Waiting/Call Hold (CW/CH)

Multi Party (MPTY)

Unstructured Supplementary Service Data (USSD)

Closed User Group (CUG)

PLMN Specific Supplementary Services (PLMNSS)

CF services consist of the following services:

Call Forwarding Unconditional (CFU) (WHFD-030101)

Call Forwarding on Mobile Subscriber Busy (CFB) (WHFD-030102)

Call Forwarding on No Reply (CFNR) (WHFD-030102)

Call Forwarding on Mobile Subscriber Not Reachable (CFNRc) (WHFD-030104)

ODB services consist of BAOC and BAIC services. The HLR9820 provides standard

CB services.

Barring of All Outgoing Calls (BAOC) (WHFD-030201)

Barring of Outgoing International Calls (WHFD-030202)

Barring of Outgoing International Calls Except Those Directed to the Home

PLMN Country (BOIC-exHC) (WHFD-030203).

Barring of All Incoming Calls (BAIC) (WHFD-030204)

Barring of Outgoing Calls when Roaming Outside the Home PLMN Country(BICROAM) (WHFD-030205)

The Number Identification Services includes:

Calling Line Identification Presentation (CLIP) (WHFD-030301)

Calling Line Identification Restriction (CLIR) (WHFD-030302)

Connected Line Identification Presentation (COLP) (WHFD-030303)

Connected Line Identification Restriction (COLR) (WHFD-030304)

Override Calling Line Identification Restriction (OVER-CLIR) (WHFD-030305)

Override Connected Line Identification Restriction (OVER-COLR)(WHFD-030306)

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1.2.1 WHFD-030101 Call Forwarding Unconditional (CFU)

Availability


Specification

3GPP29002, 3GPP22082, 3GPP23082, and 3GPP24082

Summary

When a mobile subscriber serves as the callee, all calls are forwarded to a third party,

regardless of status of the subscriber's MS. The third party can be either a

PLMN/PSTN/ISDN subscriber or a service console (such as voice mailbox).


Carriers can forward calls more flexibly and increase call completion rate, thus

boosting the revenue.

For subscribers

When the subscriber cannot use his/her MS, or does not want to use the MS, thesubscriber can forward an incoming call to another MS without affecting the

conversation. This service provides more options for the subscriber to enjoy thetelecommunication service.

DescriptionThe HLR supports subscribing/withdrawing and activating/deactivating the service.

Meanwhile, the HLR stores the forwarded-to number (FTN) registered by thesubscriber, and carries the FTN in the response message to the routing message fromthe GMSC. The subscriber can activate the service through his/her mobile phone or in

the business hall of carriers.

Dependency


for other NEs.

1.2.2 WHFD-030102 Call Forwarding on Mobile Subscriber Busy(CFB)

Availability


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Feature Description



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Specification


Summary

Based on the forwarding cause, the CFB is classified into network determined user

busy (NDUB) and user determined user busy (UDUB). When a mobile subscriber

serves as the callee, if the subscriber is in a conversation (the line is busy due to

network cause) or the subscriber rejects the incoming call (the line is busy due to thesubscriber's cause), the call is forwarded to a third party. The third party can be either a

PLMN/PSTN/ISDN subscriber or a service console (such as voice mailbox).



boosting the revenue. For subscribers

When the subscriber cannot use his/her MS, or does not want to use the MS, thesubscriber can forward an incoming call to another MS without affecting the

conversation. This service provides more options for the subscriber to enjoy the

telecommunication service.

Description

The HLR supports subscription or withdrawal, and activation or deactivation of this

service. The HLR stores the FTNs. If the location of a subscriber changes, the HLRsends the FTN to the VLR. If the subscriber receives a call when the subscriber's line

is busy, the VLR of the callee, knowing that the subscriber has subscribed to the callforwarding service, initiates a route setup request to the corresponding HLR according

to the FTN, and establishes a connection to the MSC of the third-party subscriber. Thesubscriber can activate the service through his/her mobile phone or in the business hall

of carriers.

Dependency


for other NEs.

1.2.3 WHFD-030103 Call Forwarding on no Reply (CFNRy)

Availability


Specification


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Feature Description



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Summary

A service that allows an incoming call to be forwarded to a third party when a mobilesubscriber does not answer after being alerted for a long time and the timer expires.The third party can be either a PLMN/PSTN/ISDN subscriber or a service console

(such as voice mailbox).




For subscribers

When the subscriber cannot use the MS, or does not want to use the MS, thesubscriber can forward an incoming call to another MS without affecting the

conversation. This service provides more options for the subscriber to enjoy the

telecommunication service.

Description


service. The HLR stores the FTNs. If the location of a subscriber changes, the HLR

sends the FTN to the VLR. Meanwhile, the HLR also sends a message with no-replytime length to the VLR. When the subscriber's line is busy, if a call to the subscriber

remains unanswered for a period exceeding the specified time length, the VLR of the

callee initiates a route setup request to the corresponding HLR according to the FTN,and establishes a connection to the MSC of the third-party subscriber. The subscribercan activate the service through his/her mobile phone or in the business hall of carriers.The subscriber can activate the service through his/her mobile phone or in the business

hall of carriers.

Dependency


for other NEs.

1.2.4 WHFD-030104 Call Forwarding on Mobile Subscriber notReachable (CFNRc)

Availability


Specification


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Feature Description



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Summary

The third party can be either a PLMN/PSTN/ISDN subscriber or a service console(such as voice mailbox).




For subscribers

If the MS of a subscriber is turned off or the quality of the signals received by theMS is poor, the subscriber can forward an incoming call to another MS without

affecting the conversation.

Description


service. To use the service, the subscriber must register the service in the business hall

of carriers, and then activate the service. The subscriber can activate the servicethrough his/her mobile phone or in the business hall. When a subscriber is unreachable,

it involves two occasions:

The HLR has stored the information on the unreachable subscriber. For example,

when a subscriber remains offline for a long time, the HLR reconfigures the flag

bit of the subscriber to indicate that the subscriber is unreachable.

The HLR does not know the reason why the subscriber is unreachable. Forexample, the subscriber's MS is turned off or cannot receive any signals.

If the HLR knows the reason why the subscriber is unreachable, the MSC of the callercarries the FTN in the response message to the HLR's routing request message. In this

case, the MSC of the caller initiates a route request to the third-party subscriberaccording to the FTN in the returned message. If the HLR does not know the reason

why the subscriber is unreachable, it does not send the FTN to the MSC of the caller.

The MSC of the caller firs establishes a call connection to the MSC of the callee, andthe MSC of the callee then initiates a call route request to the HLR of the third-party

subscriber.

Dependency


for other NEs.

1.2.5 WHFD-030105 Forwarded-to Number Analysis andRegulation

Availability


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Feature Description



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Specification

None.

Summary

This function allows you to configure the forwarding service data in the HLR. When a

subscriber registers the forwarding service, FTNs of correct format can be generated

and stored in the databases of the HLR.


The function allows carriers to configure the call forwarding service flexibly.

For subscribers

The function helps the subscriber to set a forwarded-to number.

Description

The request for registering the call forwarding service received by the HLR contains

FTNs. These FTNs adopt the following formats:

Unknown format (or domestic format): 81 + FTN inputted by the subscriber:

81 + fixed telephone number

81 + 0 + area code + fixed telephone number

81 + PLMN number

International format

91 + country code (CC)+ area code (AC)+ fixed telephone number 91 + PLMN number

Currently, the FTN registered in the MS adopts the unknown format. The HLR

regulates the received FTNs. The FTNs saved in the database and those sent to the MSadopt the international format. You can only judge the attribute of a regulated FTN, for

example, check whether the FTN is in the homeland or the FTN is in the local network.

To regulate the FTNs, you need to configure the related data in the HLR.

Enhancement

To enable the HLR to regulate the FTNs, you need to configure the following data:

Local office information

The table contains only one record, which describes the country code of the areawhere the HLR is located and HLR number. When it is necessary to know the

country code of an FTN but the FTN does not carry a country code, the HLR usesthe country code in the table as the country code of the regulated FTN.

Mapping of IMSIs and area codes

The table contains multiple records, with each record describing an IMSI prefix

and its corresponding area code. For example, the area code corresponding to the

IMSI prefix of 46000755 is 755. When it is necessary to know the area code of an

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Feature Description



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FTN but the FTN does not carry an area code, the HLR uses the area code in thetable as the area code of the regulated FTN.

Called number analysis

The table contains multiple records. Every record has four fields: prefix of the

FTN, attribute of the FTN, number of information station or not, and number ofentertainment station or not. There are four options for the FTN attribute: local

number, domestic toll call number, international toll call number, and PLMN

number. For example, 139 indicates PLMN number; 0 indicates domestic toll callnumber; 00 indicates international toll call number; 19 indicates local number.

In the FTN regulating process, the HLR compares the prefix of an FTN withrecords of the CALLEDNUM_ANALYSIS table to find a matched record, and

then regulates the FTN according to the record.

Area code

The table contains multiple records, with each record describing an area and its

corresponding area code, for example, the area code of Shenzhen city is 755.

Mapping of MSISDNs and area codes

The table contains multiple records, with each record describing an MSISDN

prefix and its corresponding area code. When analyzing a PLMN FTN, the HLR

queries the table to check whether the FTN exceeds area limitation imposed onthe call forwarding.

Country code

The table contains multiple records, with each record describing a country and its

corresponding country code. For example, the country code of China is 86. Whenanalyzing an FTN of international format, the HLR queries the table to verify

whether the FTN is a domestic number.

Forbidden forwarded-to number

The table contains multiple records, with each record describing a number that is

prohibited to be forwarded, for example, 110. When the HLR judges that anumber is a local number, it can query the table to verify whether the number is

allowed to serve as an FTN.

Dependency


for other NEs.

1.2.6 WHFD-030201 Barring of All Outgoing Calls (BAOC)

Availability


Specification


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Feature Description



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Summary

When the service is activated, the subscriber cannot make any call except emergencycalls.


The back end distributed deployment function enables carriers to provide more

services, attracting more subscribers for carriers.

For subscribers

The back end distributed deployment function allows a subscriber to bar calls indifferent ways.

Description

To bar all outgoing calls from a subscriber, the HLR stores the service code and status

information of the BAOC service, and sends them to the VLR of the subscriber. TheMSC implements the barring of outgoing calls from the subscriber. The HLR supports

subscribing/withdrawing and activating/deactivating the service in the MS. Thesubscriber can modify and query the status of the service. Meanwhile, the HLR can

specify whether the right of configuring the BAOC service is under the control of the

subscriber or carriers. If the right is under the control of the subscriber, the subscribercan activate/deactivate the service through his/her MS, as long as the HLR provides

the service. Before activating/deactivating the service, the subscriber needs to input a

password. The password can be modified in either the MS or the HLR. The passwordcan be modified in either the MS or the HLR.

DependencyThe HLR9820 implements the function independently. There is no special requirement

for other NEs.

1.2.7 WHFD-030202 Barring of Outgoing International Calls(BOIC)

Availability


Specification


Summary

When the service is activated, if the subscriber roams in the home PLMN country, the

subscriber is prohibited to make an international call.

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The back end distributed deployment function enables carriers to provide moreservices, attracting more subscribers for carriers.

For subscribersThe back end distributed deployment function allows a subscriber to bar calls in

different ways.

Description

To bar all outgoing calls from a subscriber, the HLR stores the service code and statusinformation of the BAOC service, and sends them to the VLR of the subscriber. The

MSC implements the barring of outgoing calls from the subscriber. The HLR supportssubscribing/withdrawing and activating/deactivating the service in the MS. The

subscriber can modify and query the status of the service. Meanwhile, the HLR can

specify whether the right of configuring the BAOC service is under the control of the

subscriber or carriers. If the right is under the control of the subscriber, the subscribercan activate/deactivate the service through his/her MS, as long as the HLR providesthe service. Before activating/deactivating the service, the subscriber needs to input a

password. The password can be modified in either the MS or the HLR.

Dependency


for other NEs.

1.2.8 WHFD-030203 Barring of Outgoing International CallsExcept Those Directed to the Home PLMN Country(BOIC-exHC)

Availability


Specification


Summary

When the service is activated, the subscriber cannot make any international call except

calls to the home PLMN country.


This service expands the business scope of carriers and increases service benefits.

For subscribers

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The back end distributed deployment function allows a subscriber to bar calls indifferent ways.

Description

To bar all outgoing international calls (except calls to the home PLMN country) from asubscriber, the HLR stores the code and status information of the BOIC-exHC service,and sends them to the VLR of the subscriber. This service is based on basic services,

including teleservices and bearer services. The MSC implements the barring ofoutgoing calls from the subscriber. The HLR supports subscribing/withdrawing andactivating/deactivating the service in the MS. The subscriber can modify and query the

status of the service. Meanwhile, the HLR can specify whether the right of configuringthe BAOC service is under the control of the subscriber or carriers. If the right is under

the control of the subscriber, the subscriber can activate/deactivate the service through

his/her MS, as long as the HLR provides the service. Before activating/deactivatingthe service, the subscriber needs to input a password. The password can be modified in

either the MS or the HLR.

Dependency


for other NEs.

1.2.9 WHFD-030204 Barring of All Incoming Calls (BAIC)

Availability


Specification


Summary

When the service is activated, the subscriber cannot receive any incoming call.


This service expands the business scope of carriers and increases service benefits.

For subscribers

The back end distributed deployment function allows a subscriber to bar calls in

different ways.

Description

The HLR activates the basic service groups and stores the code of the BAIC service,

data of the basic service groups, and the status information. When the subscriber

serves as the callee and receives a routing request from the caller, the HLR judges

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Feature Description



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whether the subscriber has activated the BAIC service. If yes, the HLR sends an errormessage to the GMSC, indicating that the callee has barred all incoming calls. TheHLR supports subscribing/withdrawing and activating/deactivating the service in theMS. The subscriber can modify and query the status of the service. Meanwhile, the

HLR can specify whether the right of configuring the BAOC service is under the

control of the subscriber or carriers. If the right is under the control of the subscriber,the subscriber can activate/deactivate the service through his/her MS, as long as the

HLR provides the service. Before activating/deactivating the service, the subscriberneeds to input a password. The password can be modified in either the MS or theHLR.

Dependency


for other NEs.

1.2.10 WHFD-030205 Barring of Incoming Calls whenRoaming Outside the Home PLMN Country (BIC-ROAM)

Availability


Specification


Summary

If the service is activated, when the subscriber roams outside the home PLMN country,

the subscriber cannot receive any call from other subscribers.


This service is based on basic service groups. It provides additional way of

barring incoming calls for carriers, and allows carriers to provide customizedservices.

For subscribers

This service allows subscribers engaged in MS lease business to limit the

incoming call by controlling the call barring function.

Description

The HLR activates the basic service groups and stores the code of the BAIC service,data of the basic service groups, and the status information. When the subscriber

serves as the callee and receives a routing request from the caller, the HLR judges

whether the subscriber has activated the BAIC service. If yes, the HLR sends an errormessage to the GMSC, indicating that the callee has barred all incoming calls. The

HLR supports subscribing/withdrawing and activating/deactivating the service. The

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Feature Description



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subscriber can query the status of the service in his/her MS. Meanwhile, the HLR canspecify whether the right of configuring the BAOC service is under the control of thesubscriber or carriers. If the right is under the control of the subscriber, the subscribercan activate/deactivate the service through his/her MS, as long as the HLR provides

the service. Before activating/deactivating the service, the subscriber needs to input a

password. The password can be modified in either the MS or the HLR.

Dependency

The HLR9820 implements the function independently. There is no special requirementfor other NEs.

1.2.11 WHFD-030301 Calling Line Identification Presentation(CLIP)

Availability


Specification


Summary

The CLIP service is a supplementary service for the called mobile subscriber. When

the mobile subscriber receives a call, the network presents the number of the caller to

the caller.


This service provides a way for carriers for attracting more subscribers.

For subscribers

This service allows a subscriber to know the calling number, and takes actions

accordingly. For example, the subscriber can decide whether to receive theincoming call. Some subscribers are busy and do not want to receive incomingcalls; some subscribers hope to avoid calls from specified callers; some

subscribers want to call back later on; some subscribers want to distinguishbusiness calls from personal calls.

Description

The HLR stores the CLIP data of the subscriber. If the location of the subscriber

changes or the subscriber modifies data of the service, the HLR sends the data to theVLR. This following describes an application scenario of the service: Subscriber B has

subscribed to the service. When subscriber B receives a call from subscriber A, the

network presents the number of subscriber A to subscriber B.

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Dependency


1.2.12 WHFD-030302 Calling Line Identification Restriction(CLIR)

Availability


Specification


Summary

Calling line identification Restriction (CLIR): A supplementary service provided for

calling VoBB subscribers. When a mobile subscriber serves as the caller, the serviceprohibits the network from displaying the calling number to the callee.


This service can protect the privacy of the subscribers, and help carriers to attractmore subscribers.

For subscribers

This service can protect the privacy of the subscriber.

Description

The HLR stores the CLIR service data for the subscriber. When subscribing the

service, the subscriber can select a restriction mode for the service:

Permanent restriction: In this mode, the service is activated for all outgoing calls.

The network does not display the calling number for the callee.

Temporary permission: In this mode, the CLIR service is activated only when the

mobile subscriber precedes the called number with #31#. Temporary restriction: In this mode, the CLIR service is activated automatically

unless the mobile subscriber precedes the called number with *31#. If thelocation of the subscriber changes or after the subscriber subscribes to the service,

the HLR sends the data to the VLR. When a mobile subscriber initiates a call, the

network decides whether to display the calling number to the callee according tothe restriction mode.

If the location of the subscriber changes or the subscriber modifies data of the service,the HLR sends the data to the VLR. This following describes an application scenario

of the service: Subscriber A has subscribed to the CLIR service and has selected thepermanent restriction mode for the service. Subscriber B has subscribed the CLIP

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service. When subscriber A calls subscriber B, the calling number is not displayed inthe MS of subscriber B.

Dependency


1.2.13 WHFD-030303 Connected Line IdentificationPresentation (COLP)

Availability


Specification


Summary

If a call from a mobile subscriber is forwarded, the network displays the forwarded-tonumber (FTN) to the mobile subscriber.


This service enlarges the number identification scope and increases the business

benefit opportunities.

For subscribers

This service enables the caller to have a clear idea of the call connection statusand have more choices.

Description

The HLR stores the CLIP data of the subscriber. If the location of the subscriber

changes or the subscriber modifies data of the service, the HLR sends the data to theVLR. The following describes an application scenario of the function: Subscriber A

initiates a call to subscriber B, and subscriber B forwards the call to subscriber C. Thenetwork displays or does not display the number of subscriber C for subscriber A,depending on whether subscriber A has subscribed to the COLP service.

Dependency


for other NEs.

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1.2.14 WHFD-030304 Connected Line IdentificationRestriction (COLR)

Availability


Specification

GPP29002, 3GPP22081, 3GPP23081, and 3GPP24081

Summary

When a mobile subscriber serves as the subscriber to whom a call is forwarded, this

service prohibits the network from displaying the number of the mobile subscriber tothe caller.


This service enlarges the number identification scope and increases the businessbenefit opportunities.

For subscribers

This service can prevent the number of a third-party subscriber from being

displayed in the MS of the caller. It can protect the privacy of the subscriber.

Description

The HLR stores the CLIP data of the subscriber. If the location of the subscriberchanges or the subscriber modifies data of the service, the HLR sends the data to the

VLR. The following describes an application scenario of the service: Subscriber C has

subscribed to the COLR service. When subscriber A calls subscriber B, subscriber Bforwards the call to subscriber C. In this case, the number of subscriber C is not

displayed in the MS of subscriber A, even though subscriber A has subscribed to the

COLP service.

Dependency


for other NEs.

1.2.15 WHFD-030305 Override Calling Line IdentificationRestriction (OVER-CLIR)

Availability


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Specification

GPP29002, 3GPP22081, 3GPP23081, and 3GPP24081

Summary

The function is based on the callee, is an attribute of the CLIP service, and is intended

to override the CLIR service subscribed by the caller.


This service enlarges the number identification scope and increases the businessbenefit opportunities.

For subscribers

Some subscribers have strong demands for the calling number. After a subscriber

subscribes to the OVER-CLIR service, the subscriber can obtain the information

on the caller and callee, and is capable of identifying callers who initiate calls outof malicious purpose.

Description

When the callee subscribes to the CLIP service, he/she can select whether to override

the calling number display restriction imposed by the caller. The CLIP and the CLIRare repulsive to each other. When the callee activates the CLIP service and the caller

activates the CLIR service, since the priority of the CLIR is higher than that of the

CLIP, the network does not display the calling number for the callee. However, whenthe CLIP service of the callee supports the OVERRIDECATEGORY attribute, thepriority of the CLIP is higher than that of the CLIR. In this case, the network displays

the calling number for the callee.

Dependency


for other NEs.

1.2.16 WHFD-030306 Override Connected Line IdentificationRestriction (OVER-COLR)

Availability


Specification


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Summary

The function is based on the caller, is an attribute of the COLP service, and is intendedto override the COLR service subscribed by the callee.


This service enlarges the number identification scope and increases the business

benefit opportunities.

For subscribers

Some subscribers have strong demands for the called number. After a subscribersubscribes to the OVER-COLR service, the subscriber can obtain the information

on the callee, and prevent call forwarding out of malicious purpose.

Description

When the caller subscribes to the COLP service, he/she can select whether to override

the called number display restriction imposed by the callee. The COLP and the COLR

are repulsive to each other. Provided that the caller activates the COLP service, and thecall to the callee is forwarded to a third-party subscriber who has activated the COLR

service. Since the priority of the COLR is higher than that of the COLP, the network

does not display the calling number for the callee. However, when the COLP serviceof the caller supports the OVERRIDECATEGORY attribute, the priority of the COLP

is higher than that of the COLR. In this case, the network displays the number for the

third-party subscriber.

Dependency


1.3 WHFD-040000 Operator Determined Barring(ODB)

ODB means that the call barring is under the control of carriers. Carriers controls the

subscriber's capability of initiating and receiving calls.

The ODB is applicable to all terminal services and bearer services except the

emergency calls. Compared with other supplementary service, the ODB has higherpriority. That is, when the ODB contradicts with other supplementary services, other

supplementary services are disabled.

Similar to call restriction supplementary services, the ODB realizes call barring.

However, they have the following differences:

The status of the ODB service can only be controlled by carriers. The status of other

call restriction supplementary service can be controlled by either carriers or thesubscriber.

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The ODB becomes applicable once it is provided for the subscriber. Before other callrestriction supplementary services become applicable, they must be activated by eithercarriers or the subscriber's terminal.

The HLR9820 mainly provides three categories of ODB functions.

ODB Call Barring (WHFD-040100) ODB Barring of Supplementary Services Management (WHFD-040201)

ODB Barring of Roaming (WHFD-040300)

The HLR9820 provides diversified ODB call barring services, allowing carriers to

manage the subscribers conveniently. The ODB call barring services consist of the

following:

ODB: Barring of Outgoing Calls(WHFD-040101)

ODB: Barring of Outgoing International Calls (WHFD-040102)

ODB: Barring of Outgoing Calls when Roaming Outside the Home PLMNCountry (WHFD-040104)

ODB: Barring of Domestic Toll Calls (HPLMN Self-Defined Type 1)(WHFD-040105)

ODB: Barring of Incoming Calls (WHFD-040106)

ODB: Barring of Incoming Calls when Roaming Outside the Home PLMN

Country (WHFD-040107)

ODB: Barring of Outgoing Premium Rate Calls (Information) (WHFD-040108)

ODB: Barring of Outgoing Premium Rate Calls (Entertainment)(WHFD-040109)

The HLR9820 supports the ODB: barring of supplementary services, including:

Barring of supplementary services management (WHFD-040201)

The HLR9820 provides Barring of Roaming, including:

ODB: Barring of Roaming Outside the Home PLMN (WHFD-040301)

ODB: Barring of Roaming Outside the Home PLMN Country (WHFD-040302)

1.3.1 WHFD-040101 ODB: Barring of Outgoing Calls(ODB-BAOC)

AvailabilityThis service is inherited from HLR9820 V600.

Specification

3GPP29002 and 3GPP22041

Summary

This service can bar all outgoing calls.

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This service provides carriers with an additional way of controlling thesubscribers, and allows carriers to bar outgoing calls from a defaulting subscriber

and avoid loss in call charge. For subscribers

This service allows the subscriber to select a conversation mode based on his/herfinancial status, and avoids unnecessary waste in call charge.

Description

The subscription data of the service is stored in the HLR. When the location of a

subscriber is updated or the subscription data of the subscriber is modified, the HLRsends the subscription data of the subscriber to the VLR of the subscriber. The MSC

realizes call barring.

Dependency


1.3.2 WHFD-040102 ODB: Barring of Outgoing InternationalCalls (ODB-BOIC)

Availability


Specification

3GPP29002 and 3GPP22041

Summary

This service can bar all international outgoing calls.


This service provides carriers with an additional way of controlling thesubscribers, and allows carriers to control the call scope of the subscriber andprovide call packages.

For subscribers


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Feature Description



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Description

The subscription data of the service is stored in the HLR. When the location of asubscriber is updated or the subscription data of the subscriber is modified, the HLRsends the subscription data of the subscriber to the VLR of the subscriber. The MSC

realizes barring of international outgoing calls from the subscriber.

Dependency


for other NEs.

1.3.3 WHFD-040103 ODB: Barring of Outgoing InternationalCalls Except Those Directed to the Home PLMN Country

Availability


Specification

3GPP29002 and 3GPP22041

Summary

This service can bar all outgoing international calls except those directed to the home

PLMN country.



For subscribers

This service allows the subscriber to select a conversation mode based on his/her

financial status, and avoids unnecessary waste in call charge.

Description

The subscription data of the service is stored in the HLR. When the location of asubscriber is updated or the subscription data of the subscriber is modified, the HLR

sends the subscription data of the subscriber to the VLR of the subscriber. The MSCrealizes barring of international outgoing calls except those directed to the home

PLMN country.

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Dependency

The HLR9820 achieves the function in compliance with the standard protocol. Thereis no special requirement for other NEs.

1.3.4 WHFD-040104 ODB: Barring of Outgoing Calls whenRoaming Outside the Home PLMN Country (ODB- BOCROAM)

Availability


Specification

3GPP29002 and 3GPP22041

Summary

This service bars all outgoing calls from a subscriber when the subscriber roams

outside the country of the HPLMN.


This service provides carriers with an additional way of controlling the

subscribers, and allows carriers to control the call scope of the subscriber andprovide call packages.

For subscribers

This service allows the subscriber to select a conversation mode based on his/her

financial status, and avoids unnecessary waste in call charge.

Description

The subscription data of the service is stored in the HLR. When the location of asubscriber is updated or the subscription data of the subscriber is modified, the HLR

sends the subscription data of the subscriber to the VLR of the subscriber. When the

subscriber roams outside the home PLMN country and initiates a call, the MSC barsthe call from the subscriber.

Dependency


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Feature Description



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1.3.5 WHFD-040105 ODB: Barring of Domestic Toll Calls(HPLMN Self-Defined Type 1)

Availability


Specification

3GPP29002, 3GPP220413GPP29002, and 3GPP22041

Summary

This service realizes barring of domestic toll calls (HPLMN self-defined type 1).


This service provides carriers with an additional way of controlling thesubscribers, and allows carriers to control the call scope of the subscriber and

provide call packages.

For subscribers


Description

The HLR defines four ODB services (ODBPB1, ODBPB2, ODBPB3, and ODBPB4):ODBPB1 is for barring domestic toll calls, and other three ODB services are defined

by carriers to realize special call barring functions. The cooperation from the MSC isnecessary. The subscription data of the service is stored in the HLR. When the location

of a subscriber is updated or the subscription data of the subscriber is modified, theHLR sends the subscription data of the subscriber to the VLR of the subscriber.

Dependency


for other NEs.

1.3.6 WHFD-040106 ODB: Barring of Incoming Calls(ODB-BAIC)

Availability


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Feature Description



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Specification

3GPP29002 and 3GPP22041

Summary

This service realizes barring all incoming calls.




For subscribers

None.

Description

The subscription data of the service is stored in the HLR, but is not sent to the VLR.

The HLR realizes barring of all incoming calls to the subscriber. When the HLRreceives a routing request message from the GMSC, it judges whether the subscriber

has subscribed to the ODB-BAIC service. If yes, the HLR returns a message to the

GMSC to indicate that the calls to the subscriber are barred.

Dependency


for other NEs.

1.3.7 WHFD-040107 ODB: Barring of Incoming Calls whenRoaming Outside the Home PLMN Country(ODB-BICROAM)

Availability


Specification

3GPP29002 and 3GPP22041

Summary

This service bars all incoming calls when a subscriber roams outside the home PLMNcountry.

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Feature Description



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This service provides carriers with an additional way of controlling thesubscribers, and allows carriers to control the call scope of the subscriber and

provide call packages. For subscribers

None.

Description

The subscription data of the service is stored in the HLR, but is not sent to the VLR.The HLR realizes barring of all incoming calls to the subscriber. When the HLR

receives the routing request message from the GMSC, it judges whether the subscriberhas subscribed to the ODB-BICROAM service. If the subscriber has subscribed to the

service, when the subscriber roams outside the country of HPLMN, the HLR returns a

message to the GMSC to indicate that incoming calls to the subscriber are barred.

Dependency


for other NEs.

1.3.8 WHFD-040108ODB: Barring of Outgoing Premium RateCalls (Information)


Specification

3GPP29002 and 3GPP22041

Summary

This service realizes barring of outgoing premium rate calls (information).




For subscribers

This service helps subscribers to avoid unnecessary call charges resulting from

ignorance of the call rate of some services.

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Feature Description



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Description

The subscription data of the service is stored in the HLR. When the location of asubscriber is updated or the subscription data of the subscriber is modified, the HLRsends the subscription data of the subscriber to the VLR of the subscriber. The MSC

realizes barring of outgoing premium rate calls (information).

Dependency


for other NEs.

1.3.9 WHFD-040109 Barring of Outgoing Premium Rate Calls(Entertainment)

Availability


Specification

3GPP29002 and 3GPP22041

Summary

This service realizes barring of outgoing premium rate calls (entertainment).




For subscribers

This service helps subscribers to avoid unnecessary call charges resulting from

ignorance of the call rate of some services.

Description


subscriber is updated or the subscription data of the subscriber is modified, the HLRsends the subscription data of the subscriber to the VLR. The MSC realizes barring ofoutgoing premium rate calls (entertainment).

Dependency


for other NEs.

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Feature Description



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1.3.10 WHFD-040201 ODB: Barring of SupplementaryServices Management

Availability


Specification

3GPP29002 and 3GPP22041

Summary

The HLR9820 provides supplementary services barring management, and supports

subscribing and withdrawing the service.



For subscribers

None.

Description

This service is subscribed and activated in the HLR. The subscription data of theservice is stored in the HLR. When the location of a subscriber is updated or thesubscription data of the subscriber is modified, the HLR sends the subscription data of

the subscriber to the VLR of the subscriber. The MSC realizes barring of

supplementary services management. The subscriber can operate the supplementaryservices in many ways, for example, activate the call barring services through the MS,

and perform other USSD operations. If the subscriber has subscribed to the service, the

subscriber is unable to perform the above operations through the MS.

Dependency


for other NEs.

1.3.11 WHFD-040301 ODB: Barring of Roaming Outside theHome PLMNAvailability


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Feature Description



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Specification

3GPP29002 and 3GPP22041

Summary

This service realizes barring of roaming outside the home PLMN.


This service allows carriers to control the roaming scope of the subscriber and

provide call packages.

For subscribers

This service can avoid unnecessary loss of call charges resulting from roaming.

DescriptionThe subscription data of the service is stored in the HLR. When the location of a

subscriber is updated or the subscription data of the subscriber is modified, the HLR

sends the subscription data of the subscriber to the VLR of the subscriber. The HLRrealizes barring of roaming outside the home HPLMN. If the subscriber has subscribed

to the service, when the subscriber roams outside the home HPLMN, the location

updating fails.

Dependency


for other NEs.

1.3.12 WHFD-040302 ODB: Barring of Roaming Outside theHome PLMN Country (ODB- BROHPLMNC)

Availability


Specification

3GPP29002 and 3GPP22041

Summary

This service realizes barring of roaming outside the home PLMN country.


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Feature Description



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This service allows carriers to control the roaming scope of the subscriber andprovide call packages.

For subscribers

This service can avoid unnecessary loss of call charges resulting from roaming.

Description



realizes barring of roaming outside the home HPLMN country. If the subscriber hassubscribed to the service, when the subscriber roams outside the home HPLMN

country, the location updating fails.

Dependency


1.3.13 WHFD-040400 ODB: Barring of Registration ofForwarded-to Number (ODBRCF)

Availability


Specification3GPP29002 and 3GPP22041

Summary

This service can restrict a subscriber's right of registering the FTNs. It can bar the

registration of All FTNs, International FTNs, and International FTNs except thosedestined to the home HPLMN country.

Benefits

For carriersThis service allows carriers to control the registration of FTNs and provide callpackages.

For subscribers

This service can prevent FTN registration due to mistaken operations.

Description



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Feature Description



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realizes barring of registration of FTNs. If the subscriber has subscribed to the service,when the subscriber registers an FTN through the terminal, the registration fails.

Enhancement

This service complies with standard protocols. The HLR sends data of the service tothe VLR. The MSC realizes the function. Meanwhile, the HLR can also restrict theregistration of FTNs. For example, the HLR can control whether a subscriber can

forward calls to the same area, whether the subscriber can forward international calls,and whether the registered FTNs can carry country code. The HLR can realize thesefunctions through configuration of data or subscription of the related template. This

service allows carriers to provide different forwarding policies for different subscribergroups.

Dependency


for other NEs.

1.3.14 WHFD-040500 ODB: Barring of Call Transfer(ODBECT)

Availability


Specification

3GPP22041 and 3GPP29002

Summary

This service can restrict a subscriber's call transfer rights.


This service allows carriers to control the call transfer and provide various callpackages.

For subscribers

None.

Description


subscriber is updated or the subscription data of the subscriber is modified, the HLRsends the subscription data of the subscriber to the VLR. The MSC realizes barring ofcall transfer on one of the following occasions:

Barring all explicit call transfers

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Feature Description



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The timely suspension of services by carriers can prevent the call charge of thesubscriber from exceeding the limit.

Description

This service provides locking operation, allowing carriers to suspend the service of thedefaulting subscriber and avoid loss of call charges.

When carriers performs locking operations for the subscriber, it can control separately:

Whether to allow the subscriber to receive incoming calls.

Whether to allow the subscriber to make outgoing calls.

Whether to allow the subscriber to use the GPRS service.

Through the above control mechanisms, carriers can restrict the subscriber's services

flexibly.

EnhancementThe HLR provides two types of locks for suspending services of the defaulting

subscribers: lock for the MSC domain and lock for the PS domain. Select the desiredlock according to the network access mode (NAM) of the subscriber. If the NAM of

the subscriber is MSC and SGSN, after the subscriber's line is locked, the subscribercan only register service in the CS domain and is unable to initiate/receive a call and

perform USSD/GPRS operations. If the NAM of the subscriber is SGSN, after the

subscriber's line is locked, the subscriber is unable to access the PS domain.

Dependency


for other NEs.

1.4.2 WHFD-050200 Subscriber Applied Suspension

Availability


Specification

None.

Summary

This service allows a subscriber to apply for service suspension.


Carriers can provide the lock function for the subscriber.

For subscribers

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Feature Description



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The subscriber can use the service to reduce unnecessary call charges.

Description

The HLR provides call barring service, allowing the subscriber to apply for service

suspension. When applying for service suspension, the subscriber must go to thebusiness hall to finish the related formalities. When applying for canceling the servicesuspension, the subscriber must go to the business hall to finish the related formalities.

Enhancement

In the HLR, the Liable Subscriber Suspension by Lock service differs from theSubscriber Applied Suspension service in that:

Different targets: The former targets at carriers, and the later targets at the

subscriber.

Different functioning principles: The former is realized through the ODB service;

the later is realized through the call baring mechanism of the supplementaryservices.

Dependency


for other NEs.

1.4.3 WHFD-050300 Subscriber Category Setting


Specification

3GPP29002, 3GPP23008

Summary

This service is for defining subscriber category. Every subscriber is allocated with a

subscriber category.


This service allows carriers to configure various subscriber categories and divide

the subscribers into different groups.

For subscribers

None.

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Feature Description



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Description

Every IMSI is allocated with a subscriber category. The HLR supports configuring andmanaging subscriber categories. The subscriber categories supported by the HLRinclude UNKNOWN, FRENCH, ENGLISH, GERMAN, RUSSIAN, SPANISH,

SPECIAL, RESERVE, COMMON, SUPERIOR, DATACALL, TESTCALL, SPARE,PAYPHONE, and COIN. In the location update flow, the HLR sends the data of

subscriber categories to the VLR so that the VLR can handle the calls and call charges

according to the subscriber categories.

Dependency


1.4.4 WHFD-571600 Multi-NDC

Availability


Specification

None.

Summary

The multi-NDC service enables a network to have multiple network numbers.


This service allows carriers to perform network planning and data configuration

conveniently.

For subscribers

None.

Description

When a subscriber initiates a call to a subscriber in the public land digital cellularmobile network, the subscriber needs to dial the MSISDN of the callee. The MSISDN

consists of CC-NDC-SN. National Destination Code (NDC) is a part of the MSISDN,

is also called network number, and is used to distinguish carriers to which thesubscriber numbers belong. The length of the NDC ranges from 1 to 3. An HLRsupports multiple NDCs and provides equal services for subscribers with differentNDCs.

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Dependency


1.5 WHFD-060000 Mobility Services

The HLR provides standard protocol-compliant mobility services, including: Locationmanagement services (WHFD-060100) Authentication management services

(WHFD-060200) Subscriber management services (WHFD-060300) Fault recoveryservices (WHFD-060400)

The HLR9820 provides standard protocol-compliant location management services,including:

Location Update (WHFD-060101)

Location Cancellation (WHFD-060102) MS Purge (WHFD-060103)

The authentication is an important function in the mobile communication system. It is

intended to prevent illegal MSs from enjoying the wireless communication throughunlawful means. During the authentication process, the MS and the network perform

calculations using the same algorithm based on the shared parameters (generallyprovided by the network) and their respective keys. If the calculation results are the

same, that is, they hold the same key, it means that the MS passes the authenticationsuccessfully.

The HLR9820 provides standard protocol-compliant authentication managementservices, including:

Authentication Information Provision

Authentication Failure Report

The HLR9820 provides standard protocol-compliant subscriber management services,

including:

Subscriber Data Insertion (WHFD-060301)

Subscriber Data Deletion (WHFD-060302)

The HLR9820 provides standard protocol-compliant fault recovery services,

including:

HLR Fault Recovery (Reset) (WHFD-060401) VLR Fault Recovery (Restore) (WHFD-060402)

Check SS Indication (Check SS indication) (WHFD-060403)

1.5.1 WHFD-060101 Location Update

Availability


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Feature Description



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Specification

3GPP29002

Summary

The location update service is a flow initiated by the subscriber's terminal for

maintaining subscriber data consistency between the VLR and the HLR.


This service provides a basic network function.

For subscribers

None.

DescriptionThe subscription data, location information, and status information of the subscriber

are stored in the HLR. In this flow, the HLR sends all subscription data of the

subscriber to the VLR.

Enhancement

Location update is the major process of the location management, and is triggered by

the MS. In the GSM system, the HLR, VLR, and MS (or the SIM card) must know the

location information of the subscriber. When the location information changes, it is

necessary to maintain consistency among the HLR, VLR, and the MS.

When the MS finds a location area that can provide better service, it notifies theMSC/VLR of the new location area (generally, the MSC and the VLR are integratedinto a function entity). If the original location area and the new location area belong to

the same MSC/VLR, modify the location area information of the MS in the VLR; ifthey belong to different MSC/VLR, the new MSC/VLR must send a message to the

HLR for obtaining the data of the MS. The HLR sends the information to the new

MSC/VLR, and notifies the original MSC/VLR to delete the registration data of theMS, and registers the MS in the new MSC/VLR. Meanwhile, the HLR also updatesthe MSC/VLR number of the MS.

By checking whether the new MSC/VLR contains the records of the MS, the network

can tell whether the new location area and the original location area belong to the sameMSC/VLR. But the network must know the IMSI number of the MS. The IMSI

number can be obtained from the original VLR(PVLR) of the MS or the MS.

The following lists the several situations of location update:

Normal location update. It triggers location update flow.

Periodic location update

IMSI attached/detached

The VLR receives the service operation instruction from the MS when the flag bit

of the VLR indicates fault. It triggers location update flow.

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Dependency


1.5.2 WHFD-060102 Location Cancellation

Availability


Specification

3GPP29002

SummaryThis service enables the HLR to initiate a flow to clear the subscriber data in the VLR.


This service provides a basic network function.

For subscribers

None.

DescriptionTo ensure that the subscriber data in the network is always unique and themost-up-to-date, when a subscriber roams from one VLR to another VLR, the HLR

sends a location cancellation request to the original VLR to instruct the original VLRto clear the subscriber data. When a subscriber is deregistered or adopts a new SIM

card, the HLR initiates the location cancellation flow to the VLR of the subscriber.

Dependency


1.5.3 WHFD-060103 MS Purge

Availability


Specification

3GPP29002

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Feature Description



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2. The HLR/AuC receives the authentication request from the VLR/SGSN,generates the RAND, calculates the authentication vector (SRES, KC, andRAND), and sends it to the VLR/SGSN.

3. The MSC/VLR sends an authentication command (containing the RAND) to theMS. The MS calculates the SRESms based on the RAND and its own KI, and

sends a message with the SRESms as the response to the authentication request tothe MSC/VLR. If SRESms is equal to SRESauc, the subscriber is considered as alegal subscriber and passes the authentication. Otherwise, the subscriber fails topass the authentication, and is refused to access the network.

In the 3G GSM system, the authentication flow is as follows:

1. The VLR/SGSN receives the registration request from the MS, sends the IMSI ofthe subscriber to the HLR/AuC of the MS, and requests them to authenticate the

subscriber

2. The HLR/AuC receives the authentication request from the VLR/SGSN,generates the SQN and RAND, calculates the authentication vectors (MAC,

XRES, CK, IK, and AK), and sends them to the VLR/SGSN.

Among the authentication vectors generated by the HLR/AuC, the MAC is used

to enable the MS to verify the legality of the network; the XRES is used to enable

the network to verify the legality of the MS; the CK and the IK are used toencrypt the air interface and verify the integrity of the authentication data; the AK

is used to encrypt the SQN.

The role of the SQN is to ensure the freshness of the authentication vectorbetween the MS and the VLR/SGSN. The authentication before every

communication adopts different authentication vector to ensure that the CK and

IK adopted in every communication event are calculated based on differentRAND. The MAC used in every authentication uses the incremental SQN as one

of its input variables to ensure the freshness of the key and prevent attacks. The

AMF participates in the calculation of authentication vector as a parameter. Everyvendor adopts a default value for it. The AMF of Huawei's HLR is set to 0x762C.

3. The VLR/SGSN receives the authentication vectors, sends RAND||AUTN to theMS, and requests the MS to generate authentication data and verify SQN.

4. The MS receives the authentication request. It calculates the XMAC, and thencompares the XMAC with the MAC of the AUTN. If they are different, it sends a

refuse authentication message to the VLR, and gives up the authenticationprocess.

5. The MS verifies whether the received SQN falls within the valid range. If not, the

MS sends a synchronization failure message to the VLR, and gives up the

authentication process.

Dependency


for other NEs.

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Feature Description



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1.5.5 WHFD-060202 Authentication Failure Report

Availability


Specification

3GPP29002

Summary

This service enables the VLR to initiate the flow of notifying the HLR of subscriber

authentication failure.


This service allows carriers to identify and collect statistics on authentication

failure events.

For subscribers

None.

Description

The HLR supports reporting authentication failure events. When the authentication set

is sent to the VLR and the subscriber authentication in the VLR fails, the VLR sendsthe authentication failure report to the HLR. The authentication failure report carries

the cause value of authentication failure, including subscriber response error andnetwork signature error. Upon receipt of the message, the HLR returns a response.

Dependency


for other NEs.

1.5.6 WHFD-060301 Subscriber Data Insertion

Availability


Specification

3GPP29002

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Feature Description



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Summary

When the subscriber data in the HLR is modified, the HLR sends the modifiedsubscriber data to the VLR to ensure the subscriber data consistency between the HLRand the VLR.


This service can ensure the subscriber data consistency between the VLR and theHLR, and maintain the service availability.

For subscribers

None.

Description

The HLR9820 supports inserting subscriber data in the following flows:

In the location update flow, the HLR sends the subscription data of the subscriber

to the VLR.

When the subscription data is modified by the subscriber, the HLR sends themodified subscription data to the VLR.

When the VLR initiates the data recovery flow request, the HLR reinserts the

data of the subscriber to ensure the subscriber data consistency between the VLR

and the HLR.

Enhancement

In the data insertion flow, the HLR9820 supports sending replacement data if the VLRdoes not support the original data. When the VLR does not support the service data

sent by the HLR, the HLR sends the replacement data according to the relatedconfiguration. For example, when the HLR sends ODB-BAOC, the VLR returns a

response to indicate that it does not support the data. In this case, the HLR rejects the

configuration data or sends supplementary service BAOC, depending on the relatedconfiguration data.

Dependency


for other NEs.

1.5.7 W

Gsm r Hlr9820

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