ETSI ETS 300 607-3 ed.7 (1998-08)

Digital cellular telecommunications system (Phase 2) (GSM); Mobile Station (MS) conformance specification; Part 3: Layer 3 (L3) Abstract Test Suite (ATS) (GSM 11.10-3 version 4.21.1)

RE/SMG-071110PR5-3

Digitalni celični telekomunikacijski sistem (faza 2) ¬– Specifikacija skladnosti za mobilne postaje (MS) – 3. del: Abstraktni preskušalni niz (ATS) tretje plasti (L3) (GSM 11.10-3 različica 4.21.1)

General Information

• Status: Published
• Publication Date: 23-Aug-1998
• Technical Committee: SMG 7 - Mobile Station (MS) Testing
• Current Stage: 12 - Completion
• Due Date: 07-Aug-1998
• Completion Date: 24-Aug-1998
• Mandate: T-247
• Ref Project: SIST ETS 300 607-3 E7:2003 - Digital cellular telecommunications system (Phase 2) (GSM); Mobile Station (MS) conformance specification; Part 3: Layer 3 (L3) Abstract Test Suite (ATS) (GSM 11.10-3 version 4.21.1)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 607-3 E7:2003
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D¤±6SHFLILNDFLMDVNODGQRVWL]D
PRELOQHSRVWDMH06±GHO$EVWUDNWQLSUHVNXãDOQLQL]$76WUHWMHSODVWL/
*60UD]OLþLFD
Digital cellular telecommunications system (Phase 2) (GSM); Mobile Station (MS)
conformance specification; Part 3: Layer 3 (L3) Abstract Test Suite (ATS) (GSM 11.10-3
version 4.21.1)
Ta slovenski standard je istoveten z: ETS 300 607-3 Edition 7
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 607-3 E7:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 607-3 E7:2003

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SIST ETS 300 607-3 E7:2003
EUROPEAN ETS 300 607-3
TELECOMMUNICATION August 1998
STANDARD Seventh Edition
Source: SMG Reference: RE/SMG-071110PR5-3
ICS: 33.020
Key words: Digital cellular telecommunications system, Global System for Mobile Communication (GSM)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
Digital cellular telecommunications system (Phase 2);
Mobile Station (MS) conformance specification;
Part 3: Layer 3 (L3) Abstract Test Suite (ATS)
(GSM 11.10-3 version 4.21.1)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: [e-mail] - http://www.etsi.fr - http://www.etsi.org
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998. All rights reserved.

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Standards Making Support Dept." at the address shown on the title page.

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .10
3.1 Definitions .10
3.2 Abbreviations .10
4 Test Suite Structure (TSS) .11
4.1 Test suite naming convention .11
4.2 Suite Overview.12
4.3 Test groups.12
4.3.1 Valid Behaviour tests (BV) .12
4.3.2 Invalid Behaviour/Inopportune Behaviour tests (BI-BO).12
4.4 Test Step Structure.13
4.4.1 Preambles .13
4.4.2 Postambles.13
5 Test Purposes (TP).13
5.1 TP and test case naming convention.13
6 Abstract test method and test configurations.13
6.1 Test system model.13
6.2 Test Method.14
Annex A (normative): Layer 3 Abstract Test Suite .15
Annex B (normative): Partial IXIT proforma .1429
Introduction.1429
B.1 Identification Summary.1430
B.2 Abstract Test Suite Summary .1430
B.3 Test Laboratory .1430
B.3.1 Test Laboratory Identification.1430
B.3.2 Accreditation status of the test service .1431
B.3.3 Manager of Test Laboratory.1431
B.3.4 Contact person of Test Laboratory .1431
B.3.5 Means of Testing .1432
B.3.6 Instructions for Completion.1433
B.4 Client .1434
B.4.1 Client Identification.1434
B.4.2 Client Test Manager.1434
B.4.3 Client Contact person .1434
B.4.4 Test Facilities Required .1435
B.5 System Under Test.1436
B.5.1 SUT Information.1436
B.5.2 Limitations of the SUT .1437
B.5.3 Environmental Conditions.1438

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
B.6 Ancillary Protocols . 1439
B.6.1 Ancillary Protocols 1. 1439
B.6.2 Ancillary Protocols 2. 1439
B.7 Protocol Layer Information for L3 of Mobile Station. 1439
B.7.1 Information provided for test purposes by the MS supplier. 1439
B.7.2 MMI information . 1452
B.7.3 Test house specified parameters. 1457
Annex C: PCTR Proforma. 1489
Annex D (normative): Enhanced Full Rate Abstract Test Suite. 1490
Annex E (informative): Cell Selection Abstract Test Suite. 1948
History. 2467

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) of the European Telecommunications Standards Institute (ETSI).
This ETS describes the technical characteristics and methods of test for Mobile Stations (MSs), operating
in the 900 MHz and 1 800 MHz frequency band (GSM 900 and DCS 1 800) within the digital cellular
telecommunications system.
This ETS corresponds to GSM technical specification GSM 11.10-3 version 4.21.1.
This part of the ETS (Part 3), contains Tree and Tabular Combined Notation (TTCN) for Layer 3,
signalling for MS supporting Enhanced Full Rate Speech, and cell selection conformity specifications for
which Mobile Stations, within the digital cellular telecommunications system (Phase 2), are tested for
compliance.
The graphical form ATS
The TTCN.GR representation of these ATSs are contained in annex A, annex D and annex E of this ETS.
The machine processable ATS
The electronic forms of the machine processable files (TTCN MP format) corresponding to the ATS for
Layer 3 are contained in the files L3-4l1.mp (Layer 3), EF-4l1.mp (Enhanced Full Rate), and CS-4l1.mp
1)
(Cell Selection) on the diskettes included as a part of this ETS (Part 3).
ETS 300 607 consists of three parts, which have the following ETS numbers and titles:
ETS 300 607-1 Digital cellular telecommunications system (Phase 2);
Mobile Station (MS) conformance specification;
Part 1: Conformance specification
Reference: GSM 11.10-1.
ETS 300 607-2 Digital cellular telecommunications system (Phase 2);
Mobile Station (MS) conformance specification;
Part 2: Protocol Implementation Conformance Statement (ICS)
proforma specification
Reference: GSM 11.10-2.
ETS 300 607-3 Digital cellular telecommunications system (Phase 2);
Mobile Station (MS) conformance specification;
Part 3: Layer 3 (L3) Abstract Test Suite (ATS)
Reference: GSM 11.10-3.
Transposition dates
Date of adoption of this ETS: 24 July 1998
Date of latest announcement of this ETS (doa): 31 October 1998
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 April 1999
Date of withdrawal of any conflicting National Standard (dow): 30 April 1999

1) This file is located in an archive file named 6073_E7.ZIP. Other file formats are available on request.

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
1 Scope
This European Telecommunication Standard (ETS) specifies the Abstract Test Suite (ATS) and partial
IXIT proforma for the Network Layer (Layer 3) at the mobile radio interface of the GSM or DCS (Phase 2)
mobile stations (MS) conforming to the ETSs for the Radio Resource management, the Mobility
Management, the circuit-switched Call Control, the Supplementary Services and Short Message Services
for the digital cellular telecommunications systems (Phase 2).
The ISO standards for the methodology of conformance testing are used as the basis for the test
specifications.
2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references, the
latest edition of the publication referred to applies.
[1] ISO/IEC 9646-1: "Information Technology-OSI- Conformance Testing
Methodology and Framework, Part 1: General Concepts".
[2] ISO/IEC 9646-2: "Information Technology-OSI- Conformance Testing
Methodology and Framework, Part 2: Abstract Test Suite Specification".
[3] ISO/IEC 9646-3: "Information Technology-OSI- Conformance Testing
Methodology and Framework, Part 3: The Tree and Tabular Combined
Notation".
[4] ISO/IEC 9646-5: "Information Technology-OSI- Conformance Testing
Methodology and Framework, Part 5: Requirements on test laboratories and
clients for the conformance assessment process".
[5] ISO/IEC 8824: "Information Technology-OSI- Specification of Abstract Syntax
Notation One (ASN.1)".
[6] ISO/IEC 8825: "Information Technology-OSI- Specification of Basic Encoding
Rules for Abstract Syntax Notation One (ASN.1)".
[7] ITU-T Recommendation Q.773: "Specifications of Signalling System No.7;
Transaction capabilities formats and encoding".
[8] ETS 300 287: "Integrated Services Digital Network (ISDN); Signalling System
No.7, Transaction Capabilities Application Part (TCAP) version 2".
[9] ETS 300 406 (January 1995): "Methods for Testing and Specification (MTS);
Protocol and profile conformance testing specifications; Standardization
methodology".
[10] ETS 300 501 (GSM 02.02 Version 4.2.2): "Digital cellular telecommunication
system (Phase 2); Bearer Services (BS) supported by a GSM Public Land
Mobile Network (PLMN)".
[11] ETS 300 502 (GSM 02.03 Version 4.3.1): "Digital cellular telecommunication
system (Phase 2); Teleservices supported by a GSM Public Land Mobile
Network (PLMN)".
[12] ETS 300 504 Edition 4 (GSM 02.06 Version 4.5.1): "Digital cellular
telecommunication system (Phase 2); Types of Mobile Stations (MS)".
[13] ETS 300 505 Edition 3 (GSM 02.07 Version 4.8.1): "Digital cellular
telecommunication system (Phase 2); Mobile Station (MS) features".

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
[14] ETS 300 511 Edition 2 (GSM 02.30 Version 4.13.0): "Digital cellular
telecommunication system (Phase 2); Man-Machine Interface (MMI) of the
Mobile Station (MS)".
[15] ETS 300 523 Edition 2 (GSM 03.03 Version 4.9.0): "Digital cellular
telecommunication system (Phase 2); Numbering, addressing and
identification".
[16] ETS 300 527 Edition 2 (GSM 03.09 Version 4.6.0): "Digital cellular
telecommunications system (Phase 2); Handover procedures".
[17] ETS 300 528 (GSM 03.10 Version 4.3.1): "Digital cellular telecommunications
system (Phase 2); GSM Public Land Mobile Network (PLMN) connection types".
[18] ETS 300 529 Edition 3 (GSM 03.11 Version 4.10.1): "Digital cellular
telecommunication system (Phase 2); Technical realization of supplementary
services".
[19] ETS 300 530 (GSM 03.12 Version 4.4.2): "Digital cellular telecommunications
system (Phase 2); Location registration procedures".
[20] ETS 300 532 (GSM 03.14 Version 4.1.1): "Digital cellular telecommunications
system (Phase 2); Support of Dual Tone Multi-Frequency signalling (DTMF) via
the GSM system".
[21] ETS 300 535 Edition 4 (GSM 03.22 Version 4.11.0): "Digital cellular
telecommunication system (Phase 2); Functions related to Mobile Station (MS)
in idle mode".
[22] ETS 300 536 Edition 4 (GSM 03.40 Version 4.13.0): "Digital cellular
telecommunication system (Phase 2); Technical realization of the Short
Message Service (SMS) Point to Point (PP)".
[23] ETS 300 537 Edition 2 (GSM 03.41 Version 4.11.0): "Digital cellular
telecommunication system (Phase 2); Technical realization of Short Message
Service Cell Broadcast (SMSCB)".
[24] ETS 300 550 (GSM 04.01 Version 4.0.4): "Digital cellular telecommunications
system (Phase 2); Mobile Station - Base Station System (MS - BSS) interface
General aspects and principles".
[25] ETS 300 552 (GSM 04.03 Version 4.1.1): "Digital cellular telecommunications
system (Phase 2); Mobile Station - Base Station System (MS - BSS) interface
Channel structures and access capabilities".
[26] ETS 300 553 (GSM 04.04 Version 4.0.4): "Digital cellular telecommunication
system (Phase 2); layer 1 General requirements".
[27] ETS 300 554 (GSM 04.05 Version 4.0.3): "Digital cellular telecommunication
system (Phase 2); Data Link (DL) layer General aspects".
[28] ETS 300 555 (GSM 04.06 Version 4.4.0): "Digital cellular telecommunication
system (Phase 2); Mobile Station - Base Station System (MS - BSS) interface
Data Link (DL) layer specification".
[29] ETS 300 556 (GSM 04.07 Version 4.3.1): "Digital cellular telecommunication
system (Phase 2); Mobile radio interface signalling layer 3 General aspects".
[30] ETS 300 557 Edition 9 (GSM 04.08 Version 4.19.1): "Digital cellular
telecommunication system (Phase 2); Mobile radio interface layer 3
specification".

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[31] ETS 300 558 Edition 2 (GSM 04.10 Version 4.10.1): "Digital cellular
telecommunication system (Phase 2); Mobile radio interface layer 3
Supplementary services specification General aspects".
[32] ETS 300 559 Edition 4 (GSM 04.11 Version 4.10.0): "Digital cellular
telecommunication system (Phase 2); Point-to-Point (PP) Short Message
Service (SMS) support on mobile radio interface".
[33] ETS 300 560 Edition 3 (GSM 04.12 Version 4.6.0): "Digital cellular
telecommunication system (Phase 2); Short Message Service Cell Broadcast
(SMSCB) support on the mobile radio interface".
[34] ETS 300 564 Edition 3 (GSM 04.80 Version 4.11.1): "Digital cellular
telecommunication system (Phase 2); Mobile radio interface layer 3
supplementary services specification Formats and coding".
[35] ETS 300 565 (GSM 04.81 Version 4.4.1): "Digital cellular telecommunication
system (Phase 2); Line identification supplementary services - Stage 3".
[36] ETS 300 566 Edition 2 (GSM 04.82 Version 4.9.1): "Digital cellular
telecommunication system (Phase 2); Call Forwarding (CF) supplementary
services - Stage 3".
[37] ETS 300 567 Edition 2 (GSM 04.83 Version 4.6.1): "Digital cellular
telecommunication system (Phase 2); Call Waiting (CW) and Call Hold (HOLD)
supplementary services - Stage 3".
[38] ETS 300 568 (GSM 04.84 Version 4.3.2): "Digital cellular telecommunication
system (Phase 2); MultiParty (MPTY) supplementary services - Stage 3".
[39] ETS 300 569 Edition 2 (GSM 04.85 Version 4.1.1): "Digital cellular
telecommunications system (Phase 2); Closed User Group (CUG)
supplementary services - Stage 3".
[40] ETS 300 570 (GSM 04.86 Version 4.5.2): "Digital cellular telecommunication
system (Phase 2); Advice of Charge (AoC) supplementary services - Stage 3".
[41] ETS 300 571 Edition 2 (GSM 04.88 Version 4.7.1): "Digital cellular
telecommunication system (Phase 2); Call Barring (CB) supplementary services
- Stage 3".
[42] ETS 300 572 (GSM 04.90 Version 4.1.1): "Digital cellular telecommunication
system (Phase 2); Unstructured supplementary services operation - Stage 3".
[43] ETS 300 573 Edition 4 (GSM 05.01 Version 4.6.0): "Digital cellular
telecommunications system (Phase 2); Physical layer on the radio path General
description".
[44] ETS 300 574 Edition 6 (GSM 05.02 Version 4.9.1): "Digital cellular
telecommunication system (Phase 2); Multiplexing and multiple access on the
radio path".
[45] ETS 300 575 Edition 4 (GSM 05.03 Version 4.5.1): "Digital cellular
telecommunication system (Phase 2); Channel coding".
[46] ETS 300 576 (GSM 05.04 Version 4.0.3): "Digital cellular telecommunication
system (Phase 2); Modulation".
[47] ETS 300 577 Edition 13 (GSM 05.05 Version 4.21.0): "Digital cellular
telecommunication system (Phase 2); Radio transmission and reception".
[48] ETS 300 578 Edition 12 (GSM 05.08 Version 4.21.0): "Digital cellular
telecommunication system (Phase 2); Radio subsystem link control".

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[49] ETS 300 579 Edition 6 (GSM 05.10 Version 4.9.0): "Digital cellular
telecommunication system (Phase 2); Radio subsystem synchronisation".
[50] ETS 300 582 Edition 4 (GSM 07.01 Version 4.10.0): "Digital cellular
telecommunication system (Phase 2); General on Terminal Adaptation
Functions (TAF) for Mobile Stations (MS)".
[51] ETS 300 590 Edition 5 (GSM 08.08 Version 4.11.0): "Digital cellular
telecommunications system (Phase 2); Mobile-services Switching Centre - Base
Station System (MSC - BSS) interface Layer 3 specification".
[52] ETS 300 596 Edition 4 (GSM 08.58 Version 4.9.0): "Digital cellular
telecommunications system (Phase 2); Base Station Controller - Base
Transceiver Station (BSC - BTS) interface Layer 3 specification".
[53] ETS 300 599 Edition 7 (GSM 09.02 Version 4.17.0): "Digital cellular
telecommunication system (Phase 2); Mobile Application Part (MAP)
specification".
[54] ETS 300 607-1 Edition 7 (GSM 11.10-1 Version 4.20.0): "Digital cellular
telecommunications system (Phase 2); Mobile Station (MS) conformance
specification; Part 1: Conformance specification".
[55] ETS 300 607-2 Edition 2 (GSM 11.10-2 Version 4.15.0): "Digital cellular
telecommunications system (Phase 2); Mobile Station (MS) conformance
specification; Part 2: Protocol Implementation Conformance Statement (PICS)
Proforma specification".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
Abstract Test Suite (ATS): Refer to ISO/IEC 9646-1 [1].
Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 [1].
Partial Protocol Implementation eXtra Information for Testing (IXIT): Refer to ISO/IEC 9646-1 [1].
Point of Controls and Observations (PCO): Refer to ISO/IEC 9646-1 [1].
Protocol Implementation Conformance Statement (ICS): Refer to ISO/IEC 9646-1 [1].
System Under Test (SUT): Refer to ISO/IEC 9646-1 [1].
3.2 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
ATS Abstract Test Suite
BI Invalid Behaviour tests
BO Inopportune Behaviour tests
BV Valid Behaviour tests
CA CApability tests
EDP-N Event Detection Point - Notification
EDP-R Event Detection Point - Request
ETS European Telecommunication Standard
FE Functional Entity
FSM Finite State Machine
ICS Implementation Conformance Statement
IUT Implementation Under Test

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
IXIT Implementation eXtra Information for Testing
PDU Protocol Data Unit
SUT System Under Test
TP Test Purpose
TSS Test Suite Structure
Further abbreviations used within GSM related ETS may be found in ETR 100.
Abbreviations for test case group names may be found in figure 1 and 2.
4 Test Suite Structure (TSS)
4.1 Test suite naming convention
The test group identifier for each group and subgroup is built according to the scheme in figure 1.
Identifier: L3
= category: BIT BIT, Basic Interconnection tests (not used)
CA CA, Capability tests (not used)
BV BV, Valid Behaviour tests
BI-BOBI and BO, Invalid and Inopportune Behaviour tests
= group: IN Initial tests
ID Idle mode tests
RR Radio Resource management
MM Mobility Management
CC Call Control
SP Structured Procedures
SS Supplementary services
LLF Lower Layer Failures
UUE Unknown, Unforeseen or erroneous Elements
= group: CR Channel Request
AT IMSI detach and IMSI attach
SMT Sequenced MM / CC message transfer
EC Establishment Cause
IA Immediate assignment
PG Test of paging
MR Test of measurement report
ASS Test of the channel
HO Test of handover
FR Test of frequency redefinition
CMM Test of the channel mode modify procedure
CY Test of ciphering mode setting
CM Test of classmark
CHR Test of channel release
START Test of starting time
IDAU Identification and authentication
LU Location updating
CON MM connection
CCSMO State Machine Verification, Mobile Originating Call
CCSMT State Machine Verification, Mobile Terminating Call
SMICF State machine verification, In Call Functions
CRE Call Re-establishment
UUS User to user signalling
UPD Unknown protocol discriminator
TIS TI and skip indicator
UMT Undefined or unexpected message type
UIE Unforeseen information elements in the non-imperative
NMIE Non-semantical mandatory IE errors
CNR Unknown IE, comprehension not required
SB Spare bits

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ETS 300 607-3 (GSM 11.10-3 version 4.21.1): August 1998
= group: AC Handover / successful / active call
CUE Handover / successful / call under establishment
FSY Handover / successful / active call / finely synchronized
PRS Pre-synchronized handovers
PRF Protocol failures
ACC Location updating / accepted
REJ Location updating / rejected
ABN Location updating / abnormal cases
REL Location updating / release
PER Location updating / periodic
HPERLocation updating / periodic HPLMN search
IWAT Location updating / interworking of attach and periodic
EST MM connection / establishment
EXP MM connection / expiry
NWAB MM connection / abortion by the network
FRQPMM connection / follow-on request pending
U0 Mobile Originating Call U0 State
U0.1 Mobile Originating Call U0.1 MM Connection pending
U1 Mobile Originating Call U1 State
U3 Mobile Originating Call U3 State
U4 Mobile Originating Call U4 State
U10 Mobile Originating Call U10 State
U11 Mobile Originating Call U11 State
U12 Mobile Originating Call U12 State
U19 Mobile Originating Call U19 State
U0 Mobile Terminating Call U0 State
U6 Mobile Terminating Call U6 State
U9 Mobile Terminating Call U9 State
U7 Mobile Terminating Call U7 State
U8 Mobile Terminating Call U8 State
DTMFState machine verification, In Call Functions / transfer
CHC State machine verification, In Call Functions /
TICM State machine verification, In Call Functions / in-
OICM State machine verification, In Call Functions / in-
Figure 1: Test group identifier naming convention scheme
4.2 Suite Overview
Figure 2 shows the structure of the test suites for L3.
L3 ATS
BV BI/O
IN ID RR MM CC SP SS SMS LLF UUE
Figure 2: Test suite structure of the L3 tests
4.3 Test groups
4.3.1 Valid Behaviour tests (BV)
Predefined state transitions are considered as valid. The test purposes in the valid behaviour test
subgroup cover the verification of the normal and exceptional procedures of the various Finite State
Machines (FSMs), i.e. a valid behaviour test is a test where the message sequence and the message
contents are considered as valid.
4.3.2 Invalid Behaviour/Inopportune Behaviour tests (BI-BO)
This test sub group verifies that the Implementation Under Test (IUT) is able to react properly having
received an invalid Protocol Data Unit (PDU) or in the case an inopportune protocol event occurs. An
invalid PDU is defined as a syntactically incorrect message. An inopportune event is syntactically correct
but occurs when it is not expected, e.g. a correctly coded operation is received in a wrong state (the IUT
may respond Error UnexpectedComponentSequence).

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4.4 Test Step Structure
4.4.1 Preambles
The preamble is defined for each test purpose.
4.4.2 Postambles
After each test case the IUT shall be brought to the state as defined in the postamble for each test
purpose.
5 Test Purposes (TP)
For each conformance requirement a Test Purpose (TP) is defined. The test purposes are specified in the
ATS Dynamic part (annex A).
5.1 TP and test case naming convention
In order clearly to map the conformance requirements specified in the prETS 300 607-1 and TTCN test
cases in the ATS, the section numbers in the prETS 300 607-1 are used as test case names.
The identifier of each TP is identical to the name of the implemented TTCN test case.
"Test Purpose Identifier" = "Test Case Name" = TPI = TC_NN_A_B_C_D_E, where NN, A, B, C, D and E
are digits used in the corresponding section numbers of prETS 300 607-1. For example, the test case
name TC_26_5_6_2 is the TTCN specification corresponding to the conformance requirements in the
section 26.5.6.1.2 in the prETS 300 607-1. In case where the section has been implemented in more than
one test case sub numbering has been introduced. For example
...