ETSI TS 186 022-2 V6.1.1 (2018-07)

Core Network and Interoperability Testing (INT); Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPPTM Release 12); Part 2: Test Suite Structure and Test Purposes (TSS&TP)

RTS/INT-00151-2

General Information

• Status: Published
• Publication Date: 02-Jul-2018
• Technical Committee: INT - Core Network and Interoperability Testing
• Current Stage: 12 - Completion
• Due Date: 30-Jun-2018
• Completion Date: 03-Jul-2018

Standards Content (Sample)

ETSI TS 186 022-2 V6.1.1 (2018-07)






TECHNICAL SPECIFICATION
Core Network and Interoperability Testing (INT);
Communication Waiting (CW) using IP Multimedia (IM)
Core Network (CN) subsystem;
Conformance test specification (3GPP™ Release 12);
Part 2: Test Suite Structure and Test Purposes (TSS&TP)

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2 ETSI TS 186 022-2 V6.1.1 (2018-07)



Reference
RTS/INT-00151-2
Keywords
conformance, CW, IMS, testing, TSS&TP
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ETSI

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3 ETSI TS 186 022-2 V6.1.1 (2018-07)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions, symbols and abbreviations . 6
3.1 Definitions . 6
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Test Suite Structure (TSS) and configuration . 6
4.1 Test Suite Structure . 6
4.2 Configuration . 6
5 Test Purposes (TP) . 8
5.1 Introduction . 8
5.1.1 TP naming convention . 8
5.1.2 Test strategy . 8
5.2 TPs for Communication Waiting (CW). 9
5.2.1 Test purposes at the destination (user B) UE . 9
5.2.2 Test purposes at the originating (user C) UE . 16
5.2.3 Test purposes at the Application Server . 17
5.3 Interaction with other supplementary services . 21
5.3.1 Communication diversion services (CDIV) . 21
5.4 Test purposes for Service Configuration . 24
History . 26


ETSI

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4 ETSI TS 186 022-2 V6.1.1 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Core Network and Interoperability
Testing (INT).
The present document is part 2 of a multi-part deliverable covering the Conformance Test Specification of
Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem, as identified below:
Part 1: "Protocol Implementation Conformance Statement (PICS)";
Part 2: "Test Suite Structure and Test Purposes (TSS&TP)".
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI

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5 ETSI TS 186 022-2 V6.1.1 (2018-07)
1 Scope
The present document provides the Test Suite Structure (TSS) and Test Purposes (TP) for the test specifications for the
Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem as specified in ETSI
TS 124 615 [1] in compliance with the relevant requirements and in accordance with the relevant guidance given in
ISO/IEC 9646-7 [4] and ETSI ETS 300 406 [5].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 124 615: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Communication Waiting (CW) using IP Multimedia
(IM) Core Network (CN) subsystem; Protocol Specification (3GPP TS 24.615 Release 12)".
[2] ETSI TS 186 022-1: "Core Network and Interoperability Testing (INT); Communication Waiting
(CW) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification
(3GPP™ Release 12); Part 1: Protocol Implementation Conformance Statement (PICS)".
[3] ISO/IEC 9646-1: "Information technology -- Open Systems Interconnection -- Conformance
testing methodology and framework -- Part 1: General concepts".
[4] ISO/IEC 9646-7: "Information technology -- Open Systems Interconnection -- Conformance
testing methodology and framework -- Part 7: Implementation Conformance Statements".
[5] ETSI ETS 300 406: "Methods for testing and Specification (MTS); Protocol and profile
conformance testing specifications; Standardization methodology".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
Not applicable.
ETSI

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6 ETSI TS 186 022-2 V6.1.1 (2018-07)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI TS 124 615 [1] and the following
apply:
Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 [3].
PICS pro forma: Refer to ISO/IEC 9646-1 [3].
Point of Control and Observation: Refer to ISO/IEC 9646-1 [3].
Protocol Implementation Conformance Statement (PICS): Refer to ISO/IEC 9646-1 [3].
System Under Test (SUT): Refer to ISO/IEC 9646-1 [3].
Test Purposes (TP): Refer to ISO/IEC 9646-1 [3].
NOTE: This may contain additional information.
3.2 Symbols
For the purposes of the present document, the symbols given in ETSI TS 124 615 [1] apply.
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI TS 124 615 [1] and the following apply:
AS Application Server
CW Communication Waiting
ISC IP Multimedia Subsystem Service Control
IUT Implementation Under Test
SUT System Under Test
UE User Equipment
4 Test Suite Structure (TSS) and configuration
4.1 Test Suite Structure
Table 4.1: Test suite structure
CW
destination_UE CW_U01_xxx
originating_UE CW_U02_xxx
AS CW_N01_xxx
interaction CDIV CW_N02_xxx
configuration CW_N03_xxx
4.2 Configuration
The scope of the present document is to test the signalling and procedural aspects of the stage 3 requirements as
described in ETSI TS 124 615 [1]. The stage 3 description respects the requirements to several network entities and
requirements regarding end devices. Therefore, several interfaces (reference points) are addressed to satisfy the test of
the different entities.
ETSI

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7 ETSI TS 186 022-2 V6.1.1 (2018-07)
Therefore, to test the appropriate entities the configurations below are applicable.
Testing of the Application Server: This entity is responsible to perform the service. Hence the ISC interface is the
appropriate access point. Figure 4.1 points to this.

Figure 4.1: Applicable interface to test AS functionalities
If the ISC interface is not accessible it is also applicable to perform the test of the AS using any NNI (Mw, Mg, Mx)
interface (consider figure 4.2). In case only the Gm interface is accessible this shall be used instead. In this case, be
aware that the verification of several requirements is impeded.

Figure 4.2: Applicable interfaces to test using the (generic) NNI interface
Figure 4.3 illustrates the usage of any NNI interface.
Testing of User Equipment: There are several requirements regarding to the end devices. Therefore, a special
configuration appears.

Figure 4.3: Applicable configuration to test the User Equipment
ETSI

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8 ETSI TS 186 022-2 V6.1.1 (2018-07)
5 Test Purposes (TP)
5.1 Introduction
5.1.1 TP naming convention
TPs are numbered, starting at 001, within each group. Groups are organized according to the TSS. Additional references
are added to identify the actual test suite and whether it applies to the network or the user (see table 5.1).
Table 5.1: TP identifier naming convention scheme
Identifier: __
= supplementary service: e.g. "CW"
= type of IUT: U User - equipment
N Network
= group 2 digit field representing group reference according to TSS
= sequential number (001-999)

5.1.2 Test strategy
As the base standard ETSI TS 124 615 [1] contains no explicit requirements for testing, the TPs were generated as a
result of an analysis of the base standard and the PICS specification ETSI TS 186 022-1 [2]. The criteria applied include
the following:
• whether or not a test case can be built from the TP is not considered.
ETSI

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9 ETSI TS 186 022-2 V6.1.1 (2018-07)
5.2 TPs for Communication Waiting (CW)
5.2.1 Test purposes at the destination (user B) UE
TSS TP Reference Selection expression
CW/destination_UE CW_U01_001 4.5.5.3.2/[1] PICS 4.5.1/1 AND
PICS 4.6.1/4
Test purpose
The terminating User Equipment applies the Communication Waiting indication to the user.

Ensure that the user B User Equipment is able to notify the user that the communication establishment is waiting.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/vnd.3gpp.cw+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-cw xmlns="urn:3gpp:ns:cw:1.0"
 communication-waiting-indication
Comments:
Test System User Equipment

Establish a confirmed communication

INVITE 
100 Trying 
180 Ringing 
Indicate Communication Waiting to the user

Apply post test routine

TSS TP Reference Selection expression
CW/destination_UE CW_U01_002 4.5.5.3.2/[1] PICS 4.5.1/1 AND
PICS 4.6.1/4
Test purpose
The terminating User Equipment sends a 180 Ringing if UDUB does not apply.

Ensure that the user B User Equipment is able to send a 180 Ringing if the terminal is not User determined User Busy.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/vnd.3gpp.cw+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-cw xmlns="urn:3gpp:ns:cw:1.0"
 
Comments:
Test System User Equipment

Establish a confirmed communication

INVITE 
100 Trying 
180 Ringing 

Apply post test routine

ETSI

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10 ETSI TS 186 022-2 V6.1.1 (2018-07)
TSS TP Reference Selection expression
CW/destination_UE CW_U01_003 4.5.5.3.2/[1] PICS 4.5.1/1 AND
PICS 4.6.1/3 AND
PICS 4.6.1/4
Test purpose
The terminating User Equipment sends a 180 Ringing if UDUB does not apply. A Communication Waiting indication is
contained in the 180.

Ensure that the user B User Equipment is able to send a 180 Ringing if the terminal is not User determined User Busy.
Ensure that Communication Waiting is contained in the Alert-Info header and the value is
.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/vnd.3gpp.cw+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-cw xmlns="urn:3gpp:ns:cw:1.0"
 

180 Ringing Alert-Info:
Comments:
Test System User Equipment

Establish a confirmed communication


INVITE
100 Trying 
180 Ringing Alert-Info:




Apply post test routine

TSS TP Reference Selection expression
CW/destination_UE CW_U01_004 4.5.5.3.2/[1] PICS 4.5.1/1 AND
PICS 4.6.1/3
Test purpose
The terminating User Equipment is able to send a Communication Waiting indication in a 180 response.

Ensure that the user B User Equipment is able to accept a waiting communication and sends a Communication Waiting
indication I the 180 Ringing response. An Alert-Info header is contained in the 180 and the value is
.
Preconditions:
SIP header values:
180 Ringing Alert-Info:
Comments:
Test System User Equipment

Establish a confirmed communication


INVITE
100 Trying 
180 Ringing Alert-Info:



Apply post test routine

ETSI

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11 ETSI TS 186 022-2 V6.1.1 (2018-07)
TSS TP Reference Selection expression
CW/destination_UE CW_U01_005 4.5.5.3.3/[1] PICS 4.5.1/1 AND
PICS 4.6.1/4 AND
PICS 4.6.1/5
Test purpose
The terminating User Equipment starts timer T and the timer is expired.
AS-CW

Ensure that the user B User Equipment is able starts timer T .
AS-CW
If the timer is expired, the User Equipment stops the Communication Waiting to the user.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/vnd.3gpp.cw+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-cw xmlns="urn:3gpp:ns:cw:1.0"
 
Comments:
Test System User Equipment

Establish a confirmed communication

INVITE 
100 Trying 

180 Ringing

Start timer T
UE-CW


Timeout T
UE-CW
480 Temporarily Unavailable 
ACK 

Apply post test routine

TSS TP Reference Selection expression
CW/destination_UE CW_U01_006 4.5.5.3.2/[1] PICS 4.5.1/1 AND
NOT PICS 4.6.1/4
Test purpose
The terminating User Equipment sends a 415 Unsupported Media Type if the received INVITE contains a XML CW
MIME attachment indicating CW.

Ensure that the user B User Equipment is able to send a 415 Unsupported Media Type if the User Equipment does not
support the CW XML MIME attachment indicating Communication Waiting.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/vnd.3gpp.cw+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-cw xmlns="urn:3gpp:ns:cw:1.0"
 
Comments:
Test System User Equipment

Establish a confirmed communication


INVITE
415 Unsupported Media Type 
ACK 

ETSI

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12 ETSI TS 186 022-2 V6.1.1 (2018-07)
TSS TP Reference Selection expression
CW/destination_UE CW_U01_007 4.5.5.3.3/[1] PICS 4.5.1/1 AND
PICS 4.6.1/4
Test purpose
The terminating User Equipment holds current communication and accepts the waiting call.

Ensure that the user B User Equipment is able set the current active communication on hold and accepts the waiting
communication. After the communication with the previous waiting communication is active, the CW indication is
stopped.
Preconditions:
SIP header values:
INVITE: MIME body
Content-Type: application/vnd.3gpp.cw+xml
Content_Disposition: 3gpp-alternative-service
MIME XML
ims-cw xmlns="urn:3gpp:ns:cw:1.0"
 
Comments:
Test System User Equipment

Establish a confirmed communication (1)

INVITE (2) 

100 Trying
180 Ringing (2) 


INVITE (1, sendonly)
200 OK INVITE (1, recvonly) 
ACK 

200 OK INVITE (2) 
ACK 

Apply post test routine

ETSI

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