ISO/IEC 15428:1999

Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Wireless Terminal Location Registration supplementary service and Wireless Terminal Information Exchange additional network feature

This International Standard specifies the Wireless Terminal Location Registration supplementary service (SS-WTLR) and the Wireless Terminal Information Exchange additional network feature (ANF-WTINFO), which are applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574. The Wireless Terminal Location Registration Supplementary Service (SS-WTLR) enables a WTM user to register at, or de-register from, the current location within the PISN. The ability to register at different locations in the PISN at different times enables the WTM user to maintain the provided services (including the ability to make and receive calls) at different access points. De-registration is used to inform the PISN that the WTM user is temporarily unable to make use of the provided services (including the receipt of incoming calls). The Information Exchange Additional Network Feature (ANF-WTINFO) allows to exchange information about a WTLR user between the Home Data Base and the Visitor Data Base. Supplementary service and additional network feature specifications are produced in three stages, according to the method described in CCITT Recommendation I.130. This International Standard contains the stage 1 and stage 2 specifications of SS-WTLR and ANF-WTINFO. The stage 1 specification (clause 6 and 7) specifies the service/feature as seen by users of PISNs. The stage 2 specification (clause 8 and 9) identifies the functional entities involved in the service/feature and the information flows between them.

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Spécification, modèle fonctionnel et flux d'information — Service supplémentaire d'enregistrement de localisation de terminal sans fil et caractéristiques de réseau additionnelles pour l'échange d'information de terminal sans fil

General Information

• Status: Published
• Publication Date: 03-Nov-1999
• ICS: 33.040.35 - Telephone networks
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 9060 - Close of review
• Start Date: 02-Sep-2027

Relations

• Consolidated By: ISO 11909:2007 - Binders for paints and varnishes — Polyisocyanate resins — General methods of test
• Effective Date: 06-Jun-2022

Standards Content (Sample)

ISO/IEC 15428:1999(E)
Contents
Foreword .iii
Introduction.iv
1 Scope . 1
2 Conformance . 1
3 Normative references. 1
4 Definitions. 2
4.1 External definitions. 2
4.2 Other definitions . 2
5 List of acronyms. 3
6 SS-WTLR stage 1 specification. 3
6.1 Description. 3
6.2 Procedure. 3
6.3 Interaction with other supplementary services and ANFs. 4
6.4 Interworking considerations. 6
6.5 Overall SDL. 6
7 ANF-WTINFO stage 1 specification. 6
7.1 Description. 6
7.2 Procedure. 7
7.3 Interaction with other supplementary services and ANFs. 7
7.4 Interworking considerations. 8
7.5 Overall SDL. 8
8 SS-WTLR stage 2 specification. 9
8.1 Functional model . 9
8.2 Information flows. 10
8.3 Functional entity actions . 16
8.4 Functional entity behaviour . 18
8.5 Allocation of functional entities to physical equipment. 23
8.6 Interworking considerations. 23
9 ANF-WTINFO stage 2 specification. 24
9.1 Functional model . 24
9.2 Information flows. 24
9.3 Functional entity actions . 26
9.4 Functional entity behaviour . 26
9.5 Allocation of functional entities to physical equipment. 28
9.6 Interworking considerations. 28
Annex A (informative) User identifiers . 29
©  ISO/IEC 1999
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
ISO/IEC Copyright Office • Case postale 56 • CH-1211 Genève 20 • Switzerland
Printed in Switzerland
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© ISO/IEC ISO/IEC 15428:1999(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the
development of International Standards through technical committees established by the respective organization to deal with
particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft
International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the national bodies casting a vote.
International Standard ISO/IEC 15428 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 6, Telecommunications and information exchange between systems.
Annex A of this International Standard is for information only.
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ISO/IEC 15428:1999(E) © ISO/IEC
Introduction
This International Standard is one of a series of International Standards defining services and signalling protocols applicable to
Private Integrated Services Networks (PISNs). The series uses ISDN concepts as developed by ITU-T and conforms to the
framework of International Standards for Open Systems Interconnection as defined by ISO/IEC.
This particular International Standard specifies the WTLR supplementary service.
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INTERNATIONAL STANDARD  © ISO/IEC ISO/IEC 15428:1999(E)
Information technology — Telecommunications and information exchange between
systems — Private Integrated Services Network — Specification, functional model
and information flows — Wireless Terminal Location Registration supplementary
service and Wireless Terminal Information Exchange additional network feature
1 Scope
This International Standard specifies the Wireless Terminal Location Registration supplementary service (SS-WTLR) and the
Wireless Terminal Information Exchange additional network feature (ANF-WTINFO), which are applicable to various basic
services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574.
The Wireless Terminal Location Registration Supplementary Service (SS-WTLR) enables a WTM user to register at, or
de-register from, the current location within the PISN. The ability to register at different locations in the PISN at different times
enables the WTM user to maintain the provided services (including the ability to make and receive calls) at different access
points. De-registration is used to inform the PISN that the WTM user is temporarily unable to make use of the provided
services (including the receipt of incoming calls).
The Information Exchange Additional Network Feature (ANF-WTINFO) allows to exchange information about a WTLR user
between the Home Data Base and the Visitor Data Base.
Supplementary service and additional network feature specifications are produced in three stages, according to the method
described in CCITT Recommendation I.130. This International Standard contains the stage 1 and stage 2 specifications of
SS-WTLR and ANF-WTINFO. The stage 1 specification (clause 6 and 7) specifies the service/feature as seen by users of
PISNs. The stage 2 specification (clause 8 and 9) identifies the functional entities involved in the service/feature and the
information flows between them.
2 Conformance
In order to conform to this International Standard, a stage 3 International Standard shall specify signalling protocols and
equipment behaviour that are capable of being used in a PISN which supports the supplementary service or additional network
feature specified in this International Standard. This means that, to claim conformance, a stage 3 International Standard is
required to be adequate for the support of those aspects of clause 6 and 7 (stage 1) and clause 0 and 9 (stage 2) which are
relevant to the interface or equipment to which the stage 3 International Standard applies.
3 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this
International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply.
However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying
the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative
document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.
ISO/IEC 11571:1994, Information technology - Telecommunications and information exchange between systems - Numbering
and sub-addressing in private integrated services networks.
ISO/IEC 11574:1994, Information technology - Telecommunications and information exchange between systems - Private
Integrated Services Network - Circuit-mode 64 kbit/s bearer services - Service description, functional capabilities and
information flows.
ISO/IEC 11579-1:1994, Information technology - Telecommunications and information exchange between systems - Private
integrated services network - Part 1: Reference configuration for PISN Exchanges (PINX).
ISO/IEC 15432:1999, Information technology - Telecommunications and information exchange between systems - Private
Integrated Services Network – Specification, functional model and information flows - Wireless Terminal Authentication
supplementary services (WTAT and WTAN).
ITU-T Rec. I.112:1993, Vocabulary of terms for ISDNs.
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ISO/IEC 15428:1999(E) © ISO/IEC
CCITT Rec. I.130:1988, Method for the characterization of telecommunication services supported by an ISDN and network
capabilities of an ISDN (Blue Book).
ITU-T Rec. I.210:1993, Principles of telecommunication services supported by an ISDN and the means to describe them.
ITU-T Rec. Z.100:1993, Specification and Description Language.
4 Definitions
For the purposes of this International Standard, the following definitions apply.
4.1 External definitions
This International Standard uses the following terms defined in other documents:
– Authentication (ISO/IEC 15432)
– Basic service (ITU-T Rec. I.210)
– PISN number (ISO/IEC 11571)
– Private Integrated Services Network (PISN) (ISO/IEC 11579-1)
– Private Integrated Services Network Exchange (PINX) (ISO/IEC 11579-1)
– Service (ITU-T Rec. I.112)
– Signalling (ITU-T Rec. I.112)
– Supplementary Service (ITU-T Rec. I.210)
– User (ISO/IEC 11574)
4.2 Other definitions
Additional Network Feature (ANF): A capability, over and above that of a basic service, provided by a PISN, but not
directly to a PISN user.
Directory PINX: A PINX which provides a mapping function to a WTM user's PISN number or permanent identity from
another type of identity indicating the same WTM user.
Fixed part (FP): A physical grouping of some or all of the fixed component parts of a mobile radio system. These would
include one or more radio equipments attached to an antenna system. It could also include common control functions and
interfaces to the PINX.
Home Data Base (HDB): The data base in which the current location and all associated parameters of a wireless terminal are
stored.
Home PINX: The PINX which has direct access to the HDB entry for a particular WTM user.
Location Area (LA): The coverage area in which a wireless terminal may receive and make calls as a result of a single
location registration.
Network Assigned Identity (NAI): A temporary identity assigned by the PISN to a WTM user. This identity comprises:
- a PISN number sufficient to identify the PINX assigning the NAI; and
- a local identity valid while the user is registered.
PISN authority: The body or its representative responsible for arranging the service with the service provider.
PISN user: The user of the network layer services provided by a PISN.
Service profile: The specific collection of PISN services and service options which a PISN user can utilize.
Visitor Area (VA): The area covered by a single VDB.
Visitor Data Base (VDB): The data base in which all relevant parameters concerning a wireless terminal are stored for as long
as the terminal is located in an area controlled by that data base.
Visitor PINX: The PINX which is serving a WTM user in a visitor area.
Wireless Terminal Mobility (WTM): The ability of a wireless terminal to be in continuous motion whilst accessing and using
the telecommunication services offered by the PISN, as well as the capability of the network to keep track of the location of the
wireless terminal within the coverage area of the radio system used.
WTLR user: The user of Supplementary Service "Wireless Terminal Location Registration" (SS-WTLR).
WTM information: The information for a WTM user managed by a VDB.
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© ISO/IEC ISO/IEC 15428:1999(E)
WTM user: The user of a WTM supplementary service.
WTM user’s identity: An identifier which is used to identify a WTM user.
5 List of acronyms
ANF Additional Network Feature
CC Call Control (functional entity)
CCA Call Control Agent (functional entity)
FE Functional Entity
FEA Functional Entity Action
FP Fixed Part
HDB Home Data Base
ISDN Integrated Services Digital Network
LA Location Area
NAI Network Assigned Identity
PINX Private Integrated Services Network Exchange
PISN Private Integrated Services Network
SDL Specification and Description Language
SS Supplementary Service
VA Visitor Area
VDB Visitor Data Base
WTM Wireless Terminal Mobility
6 SS-WTLR stage 1 specification
6.1 Description
6.1.1General description
SS-WTLR makes the location of a WTM user known to the PISN. By updating location information in the PISN, incoming
calls can be routed to a WTM user, and the WTM user can access the PISN services from the current location area. WTLR also
enables a WTM user to inform the PISN that the current location area is no longer to be used to make and receive calls.
The network may allow the WTM user to perform location registration using a permanent identifier. Alternatively, for security
reasons, a procedure supporting the use of temporary identifiers may be used.
SS-WTLR may use an authentication procedure in order to validate the identity provided by the WTM user to the PISN before
completing the location registration.
6.1.2Qualifications on applicability to telecommunication services
This supplementary service is applicable to all basic services defined in ISO/IEC 11574.
6.2 Procedure
6.2.1Provision/withdrawal
SS-WTLR shall be provided by arrangement with the PISN authority. SS-WTLR shall be withdrawn on user request or for
service provider reasons.
6.2.2Normal procedures
6.2.2.1 Activation/deactivation/registration/interrogation
SS-WTLR shall be activated on provision and deactivated on withdrawal.
Interrogation and registration are not applicable to this supplementary service.
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ISO/IEC 15428:1999(E) © ISO/IEC
6.2.2.2 Invocation and operation
The following procedures apply on the basis of individual basic services. On invocation, a unique identification and optionally
an indication of the affected basic services shall be provided to the network.
SS-WTLR shall be invoked to register a WTM user's current location area either when the location area has changed or
following a period of de-registration.
Location registration shall cause the PISN to register the WTM user at the current location area for the indicated basic services.
The location information at the previously visited location area shall be deleted for these basic services, which are identical in
the newly and the previously visited location. When the procedures are completed, the location registration is confirmed to the
WTM user. As the result of a location registration, the PISN may assign a temporary identity to the WTM user. This identity
may be stored by the WTM user and used for identification in a subsequent location registration. The identity is valid until a
new location registration has successfully completed and shall be sufficient to access information specific to the WTM user at
the previous visitor area from any location area within the PISN.
SS-WTLR may be invoked to de-register a WTM user when the WTM user decides not to use the service or is unable to make
use of the services provided by the PISN.
NOTE: The decision to invoke de-registration can be either explicit (e.g. by switching off a wireless terminal) or
implicit (e.g. by detecting that the wireless terminal is out of range).
Location de-registration shall cause the PISN to treat the WTM user as unavailable until the WTM user performs location
registration again.
6.2.3Exceptional procedures
6.2.3.1 Activation/deactivation/registration/interrogation
Not applicable.
6.2.3.2 Invocation and operation
Location registration shall be rejected under, at least, the following circumstances:
- user identity not known;
- WTM user not permitted to register in the current location area;
- WTM user failed authentication;
- location registration temporarily not possible.
An indication of the reason for rejection shall be sent to the WTM user.
The rejection cause "WTM user failed authentication" is only applicable if authentication is supported.
If the reason for rejection is "User identity not known" and the identity used was a temporary identifier, SS-WTLR may be
invoked again using the WTM user's permanent identity.
Location de-registration shall be rejected if the WTM user was not registered at that location area.
6.3 Interaction with other supplementary services and ANFs
Interactions with other supplementary services and ANFs for which PISN International Standards were available at the time of
publication of this International Standard are specified below.
6.3.1Calling Line Identification Presentation (SS-CLIP)
No Interaction
6.3.2Connected Line Identification Presentation (SS-COLP)
No interaction
6.3.3Calling/Connected Line Identification Restriction (SS-CLIR)
No interaction
6.3.4Calling Name Identification Presentation (SS-CNIP)
No Interaction
6.3.5Connected Name Identification Presentation (SS-CONP)
No interaction
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© ISO/IEC ISO/IEC 15428:1999(E)
6.3.6Calling/Connected Name Identification Restriction (SS-CNIR)
No interaction
6.3.7Completion of Calls to Busy Subscriber (SS-CCBS)
If the WTM user is either the served user or the called user in a call completion attempt, the following interactions shall apply.
Location registration may cause call completion to be cancelled.
If the WTM user de-registers, an existing call completion request shall be cancelled. Invocation of call completion on a de-
registered WTM user shall be rejected.
6.3.8Completion of Calls on No Reply (SS-CCNR)
If the WTM user is either the served user or the called user in a call completion attempt, the following interactions shall apply.
Location registration may cause call completion to be cancelled.
If the WTM user de-registers, an existing call completion request shall be cancelled. Invocation of call completion on a de-
registered WTM user shall be rejected.
6.3.9Call Transfer (SS-CT)
No interaction
6.3.10 Call Forwarding Unconditional (SS-CFU)
No interaction
6.3.11 Call Forwarding Busy (SS-CFB)
No interaction
6.3.12 Call Forwarding No Reply (SS-CFNR)
No interaction
6.3.13 Call Deflection (SS-CD)
No interaction
6.3.14 Path Replacement (ANF-PR)
No interaction
6.3.15 Call Offer (SS-CO)
No interaction
6.3.16 Call Intrusion (SS-CI)
No interaction
6.3.17 Do Not Disturb (SS-DND)
No interaction
6.3.18 Do Not Disturb Override (SS-DNDO)
No interaction
6.3.19 Advice of Charge (SS-AOC)
No interaction
6.3.20 Recall (SS-RE)
No interaction
6.3.21 Wireless terminal information exchange (ANF-WTINFO)
SS-WTLR may cause the invocation of ANF-WTINFO.
6.3.22 Wireless terminal incoming call (ANF-WTMI)
An incoming call may be rejected if it occurs between the invocation and completion of the SS-WTLR procedures or if the
incoming call occurs during a period of de-registration.
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ISO/IEC 15428:1999(E) © ISO/IEC
6.3.23 Wireless terminal outgoing call (ANF-WTMO)
An outgoing call may be rejected if attempted between the invocation and completion of the SS-WTLR procedures or if the
outgoing call occurs during a period of de-registration.
6.3.24 Authentication of wireless terminal (SS-WTAT)
SS-WTLR may cause the invocation of SS-WTAT.
6.3.25 Authentication of network (SS-WTAN)
No interaction
6.3.26 Message waiting indication (SS-MWI)
Message waiting indications may be forwarded to the new location.
6.4 Interworking considerations
Not applicable
6.5 Overall SDL
Figure 1 contains the dynamic description of SS-WTLR using the Specification and Description Language (SDL) defined in
ITU-T Rec. Z.100. The SDL process represents the behaviour of the PISN in providing SS-WTLR.
Input signals from the right represent primitives from the served user. Output signals to the right represent primitives to the
served user.
SS-WTLR
Idle
Location Location
Registration Deregistration
No No
WTM user
Acceptable
registered
?
?
Yes Yes
Update
Update
Location
Location
Information
Information
Location
Location
Registration Deregistration
Response
Response
SS-WTLR
Idle
Figure 1: SS-WTLR, overall SDL diagram
7 ANF-WTINFO stage 1 specification
7.1 Description
7.1.1 General description
The ANF-WTINFO enables the exchange of information about a WTLR user between the Home Data Base and the Visitor
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© ISO/IEC ISO/IEC 15428:1999(E)
Data Base.
The information transfer may occur at any time.
7.1.2 Qualifications on applicability to telecommunication services
Not applicable.
7.2 Procedure
7.2.1 Provision/withdrawal
ANF-WTINFO shall be provided by arrangement with the PISN authority.
7.2.2 Normal procedures
7.2.2.1 Activation/deactivation/registration/interrogation
ANF-WTINFO shall be permanently activated. Interrogation and registration are not applicable.
7.2.2.2 Invocation and operation
ANF-WTINFO may be invoked at any time, e.g. to initiate a check of the current location information or to transfer
information about a WTLR user from the HDB to the VDB.
7.2.3 Exceptional procedures
7.2.3.1 Activation/deactivation/registration/interrogation
Not applicable.
7.2.3.2 Invocation and operation
Not applicable.
7.3 Interaction with other supplementary services and ANFs
Interactions with other supplementary services and ANFs for which PISN International Standards were available at the time of
publication of this International Standard are specified below.
7.3.1 Calling Line Identification Presentation (SS-CLIP)
No Interaction
7.3.2 Connected Line Identification Presentation (SS-COLP)
No interaction
7.3.3 Calling/Connected Line Identification Restriction (SS-CLIR)
No interaction
7.3.4 Calling Name Identification Presentation (SS-CNIP)
No Interaction
7.3.5 Connected Name Identification Presentation (SS-CONP)
No interaction
7.3.6 Calling/Connected Name Identification Restriction (SS-CNIR)
No interaction
7.3.7 Completion of Calls to Busy Subscriber (SS-CCBS)
No interaction
7.3.8 Completion of Calls on No Reply (SS-CCNR)
No interaction
7.3.9 Call Transfer (SS-CT)
No interaction
7.3.10 Call Forwarding Unconditional (SS-CFU)
No interaction
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ISO/IEC 15428:1999(E) © ISO/IEC
7.3.11 Call Forwarding Busy (SS-CFB)
No interaction
7.3.12 Call Forwarding No Reply (SS-CFNR)
No interaction
7.3.13 Call Deflection (SS-CD)
No interaction
7.3.14 Path Replacement (ANF-PR)
No interaction
7.3.15 Call Offer (SS-CO)
No interaction
7.3.16 Call Intrusion (SS-CI)
No interaction
7.3.17 Do Not Disturb (SS-DND)
No interaction
7.3.18 Do Not Disturb Override (SS-DNDO)
No interaction
7.3.19 Advice of Charge (SS-AOC)
No interaction
7.3.20 Recall (SS-RE)
No interaction
7.3.21 Wireless Terminal Location Registration (SS-WTLR)
SS-WTLR may cause the invocation of ANF-WTINFO.
7.3.22 Incoming WTM Call Handling (ANF-WTMI)
No interaction
7.3.23 Outgoing WTM Call Handling (ANF-WTMO)
No interaction
7.3.24 Authentication of wireless terminal (SS-WTAT)
No interaction
7.3.25 Authentication of network (SS-WTAN)
No interaction
7.4 Interworking considerations
Not applicable
7.5 Overall SDL
Figure 2 contains the dynamic description of ANF-WTINFO using the Specification and Description Language (SDL) defined
in ITU-T Rec. Z.100. The SDL process represents the behaviour of the PISN in providing SS-WTLR.
Input signals from the right represent primitives from the ANF-WTINFO user. Output signals to the right represent primitives
to the ANF-WTINFO user.
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© ISO/IEC ISO/IEC 15428:1999(E)
ANF-WTINFO
Idle
Info
Request
Yes
Info
available
?
No
Transfer/Access
Information
Info
Response
ANF-WTINFO
Idle
Figure 2: ANF-WTINFO, overall SDL diagram
8 SS-WTLR stage 2 specification
8.1 Functional model
8.1.1 Functional model description
The functional model shall comprise the following Functional Entities (FEs):
FE1: Served user agent;
FE2: VDB function control;
FE3: HDB function control;
FE4: Old VDB function control;
FE5: Old served user agent;
FE6: Identification mapping entity.
The following functional relationships shall exist between these FEs:
ra: between FE1 and FE2;
rb: between FE2 and FE3;
rc: between FE3 and FE4, between FE4 and FE5 and between FE2 and FE5;
rd: between FE2 and FE6.
Figure 3 shows these FEs and relationships.
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ISO/IEC 15428:1999(E) © ISO/IEC
rc
rc
FE5 FE4 FE3
rb
rc
ra rd
FE1 FE2 FE6
Figure 3: Functional model for SS-WTLR
8.1.2 Description of functional entities
8.1.2.1 Served user agent, FE1
This FE detects the request for location registration and de-registration procedures.
NOTE: The possible information transfer on the radio interface causing FE1 to invoke SS-WTLR is out of scope
for this standard.
8.1.2.2 VDB function control, FE2
This FE is responsible for the maintenance of WTM information while the WTM user is registered at the visited location by
inserting an entry in the VDB when the WTM user first registers in the visitor area, updating the entry when the WTM user
registers to a different location area within the same visitor area, and deleting the entry when the WTM user de-registers.
8.1.2.3 HDB function control, FE3
This FE registers the new visitor area of the WTM user and requests the deletion of location information at the old visited
location.
8.1.2.4 Old VDB function control, FE4
This FE is the VDB function control at the previous visited location and is responsible for the deletion of location information
that is no longer required.
8.1.2.5 Old served user agent, FE5
This FE is the served user agent at the previously visited location and is responsible for the release of resources that are no
...