ETSI TS 103 530-2 V1.1.1 (2018-02)

Core Network and Interoperability Testing (INT); NAS Conformance Testing for the S1-MME interface; (3GPPTM Release 13); Part 2: Test Suite Structure (TSS) and Test Purposes (TP)

DTS/INT-00136-2

General Information

• Status: Published
• Publication Date: 12-Feb-2018
• Technical Committee: INT - Core Network and Interoperability Testing
• Current Stage: 12 - Completion
• Due Date: 28-Feb-2018
• Completion Date: 13-Feb-2018

Standards Content (Sample)

ETSI TS 103 530-2 V1.1.1 (2018-02)






TECHNICAL SPECIFICATION
Core Network and Interoperability Testing (INT);
NAS Conformance Testing for the S1-MME interface;
TM
(3GPP Release 13);
Part 2: Test Suite Structure (TSS) and Test Purposes (TP)

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2 ETSI TS 103 530-2 V1.1.1 (2018-02)



Reference
DTS/INT-00136-2
Keywords
conformance, TSS&TP

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3 ETSI TS 103 530-2 V1.1.1 (2018-02)
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 and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 6
4 Test configurations . 6
4.1 Introduction . 6
4.2 Test configuration using the S1-MME interface . 6
5 Test Suite Structure (TSS) and Test Purposes (TP) . 7
5.1 Test Suite Structure . 7
5.1.1 TP naming convention . 7
5.1.2 Test strategy . 8
5.1.3 TP structure . 8
5.2 Test Purposes . 9
5.2.1 PICS references . 9
5.2.2 S1_MME interface NAS – MME Role . 9
5.2.2.1 Test selection. 9
5.2.2.2 Elementary procedures for EPS mobility management . 9
5.2.2.2.1 GUTI reallocation group . 9
5.2.2.2.2 Authentication group . 9
5.2.2.2.3 Security mode control group . 15
5.2.2.2.4 Identification group . 16
5.2.2.2.5 EMM information group . 16
5.2.2.2.6 Attach group . 17
5.2.2.2.7 Detach group . 24
5.2.2.2.8 Tracking area updating group . 26
5.2.2.2.9 Service request group . 27
5.2.2.2.10 Paging group . 29
5.2.2.2.11 Transport of NAS messages group . 29
5.2.2.2.12 Generic transport of NAS messages group . 30
5.2.2.2.13 EMM STATUS . 30
5.2.2.3 Elementary procedures for EPS session management . 31
5.2.2.3.1 Default EPS bearer context activation procedure . 31
5.2.2.3.2 Dedicated EPS bearer context activation procedure . 31
5.2.2.3.3 EPS bearer context modification procedure . 32
5.2.2.3.4 EPS bearer context deactivation procedure . 32
5.2.2.3.5 UE requested PDN connectivity procedure . 33
5.2.2.3.6 UE requested PDN disconnect procedure . 34
5.2.2.3.7 UE requested bearer resource allocation procedure. 35
5.2.2.3.8 UE requested bearer resource modification procedure . 37
5.2.2.3.9 ESM information request procedure . 38
5.2.2.3.10 Notification procedure . 39
5.2.2.3.11 Remote UE Report procedure . 39
5.2.2.3.12 Transport of user data via the control plane procedure . 40
5.2.3 S1-MME Messages . 40
5.2.3.1 General overview . 40
5.2.3.2 E-RAB procedure . 40
5.2.3.3 Initial context procedure . 41
5.2.3.4 NAS transport procedure . 41
History . 43
ETSI

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4 ETSI TS 103 530-2 V1.1.1 (2018-02)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to the present document 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. Full details of the entire series can be found in part 1 [2].
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 103 530-2 V1.1.1 (2018-02)
1 Scope
The present document provides the Test Suite Structure (TSS) and Test Purposes (TP) for the test specification for the
NAS protocol on the S1-MME interface as specified in ETSI TS 124 301 [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 124 301 (V13.9.0): "Universal Mobile Telecommunications System (UMTS); LTE;
Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3
(3GPP TS 24.301 version 13.9.0 Release 13)".
[2] ETSI TS 103 530-1: "Core Network and Interoperability Testing (INT); NAS Conformance
Testing for the S1-MME interface; (3GPP™ Release 13); 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".
[6] ETSI TS 136 413 (V13.4.0): "LTE; Evolved Universal Terrestrial Radio Access Network
(E-UTRAN); S1 Application Protocol (S1AP) (3GPP TS 36.413 version 13.4.0 Release 13)".
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 103 530-2 V1.1.1 (2018-02)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ETSI TS 124 301 [1] and the following
apply:
Abstract Test Method (ATM): Refer to ISO/IEC 9646-1 [3].
Abstract Test Suite (ATS): Refer to ISO/IEC 9646-1 [3].
Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 [3].
Test Purpose (TP): Refer to ISO/IEC 9646-1 [3].
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI TS 124 301 [1] and the following apply:
MI Message Information
NAS Non-Access Stratum
S1AP S1 Application Protocol
TP Test Purpose
TSS Test Suite Structure
4 Test configurations
4.1 Introduction
Test purposes of the present document address the VoLTE functional entity MME that is accessible via the standardized
S1-MME interface.
4.2 Test configuration using the S1-MME interface
The S1-MME interface is located between the eNB and the MME. The NAS messages are transparent for the eNB,
therefore only the MME is considered a System Under test (SUT).
SUT
TS
S1-MME
eNB
MME

Figure 1: Test configuration CF_S1-MME
ETSI

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7 ETSI TS 103 530-2 V1.1.1 (2018-02)
5 Test Suite Structure (TSS) and Test Purposes (TP)
5.1 Test Suite Structure
5.1.1 TP naming convention
TPs are numbered, starting at 01, within each group. Groups are organized according to the TSS.
Table 1: TP identifier naming convention scheme
Identifier: ___
= Test Purpose: fixed to "TP"
Interface or protocol: NAS
= type of IUT: MME
= group MGR EMM / GUTI relocation procedure
MAU EMM / Authentication procedure
MSM EMM / Security mode control procedure
MID EMM / Identification procedure
MEI EMM / EMM information procedure
MAT EMM / Attach procedure
MDE EMM / Detach procedure
MTA EMM / Tracking area updating procedure (S1 mode only)
MSR EMM / Service request procedure
MPA EMM / Paging procedure
MTR EMM / Transport of NAS messages procedure
MGT EMM / Generic transport of NAS messages procedure
MES EMM / EMM Status
SDF ESM / Default EPS bearer context activation procedure
SDE ESM / Dedicated EPS bearer context activation procedure
SCM ESM / EPS bearer context modification procedure
SCD ESM / EPS bearer context deactivation procedure
SPC ESM / UE requested PDN connectivity procedure
SPD ESM / UE requested PDN disconnect procedure
SRA ESM / UE requested bearer resource allocation procedure
SRM ESM / UE requested bearer resource modification procedure
SEI ESM / ESM information request procedure
SNO ESM / Notification procedure
SRR ESM / Remote UE Report procedure
STU ESM / Transport of user data via the control plane procedure
= sequential number (01 to 99)

ETSI

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8 ETSI TS 103 530-2 V1.1.1 (2018-02)
5.1.2 Test strategy
As the base specification in ETSI TS 124 301 [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 103 530-1 [2].
5.1.3 TP structure
Each TP has been written in a manner which is consistent with all other TPs. The intention of this is to make the TPs
more readable and checkable. A particular structure has been used which is illustrated in table 2. Table 2 should be read
in conjunction with any TP, i.e. please use a TP as an example to facilitate the full comprehension of table 2.
Table 2: Structure of a single TP
TP part Text Example
Header see table 1
clause 8.2.1
A.4/3
Summary Short free text description of the test objective Verify that the IUT can successfully
process all mandatory IEs in an
ATTACH REQUEST received due to
attach procedure
Configuration Test configuration as described in clause 4.2 CF_S1-MME
Initial Free text description of the condition that the IUT has
condition
reached before the test purpose applies
(optional)
Start point Ensure that the IUT in the
see ETSI TS 124 301 [1] clause 8.1 Network initiated detach procedure
and/or further actions before stimulus Having sent a DETACH REQUEST
if the action is sending/receiving
see below for message structure
Stimulus , see below for message structure On receipt of an ATTACH REQUEST
(see note 2)

or
Reaction
Sends, saves, does, etc.
if the action is sending
see below for message structure
, etc.
Message
Message exchange, etc. (see note 2)
structure
a) containing a(n) IE
b) indicating
and back to a) or b) (see note 3)
NOTE 1: Text in italics will not appear in TPs and text between <> is filled in for each TP and may differ from one
TP to the next.
NOTE 2: All messages are considered as "valid and compatible" unless otherwise specified in the test purpose.
This includes the presence of all NAS mandatory IEs as specified in ETSI TS 124 301 [1]. For better
overview of the document there are S1AP messages (ex. DOWNLINK_NAS_TRANSPORT) written with
underscore character and NAS messages (ex. ATTACH REQUETS) with space character.
NOTE 3: An IE can be embedded into another IE. This is expressed by indentations, e.g. if Message1 contains IE1
and IE2 where IE1 has IE3 embedded this will be expressed like this:
 sends/receives Message 1
  containing IE1
  containing IE3
   indicating
  containing IE2
  indicating.

ETSI

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9 ETSI TS 103 530-2 V1.1.1 (2018-02)
5.2 Test Purposes
5.2.1 PICS references
All PICS items referred in this clause are as specified in ETSI TS 103 530-1 [2] unless indicated otherwise by another
numbered reference. PICS items are only meant for test selection, therefore only PICS items with status optional or
conditional are explicitly mentioned.
5.2.2 S1_MME interface NAS – MME Role
5.2.2.1 Test selection
The IUT takes the role of the MME; PICS A.2/1.
Test purposes contains S1AP message with NAS-PDU content. S1AP message content with required IEs is present
within clause 5.2.3.
5.2.2.2 Elementary procedures for EPS mobility management
5.2.2.2.1 GUTI reallocation group
TP_NAS_MME_MGR_01 Standards Reference: PICS item:
ETSI TS 124 301 [1], clauses 5.4.1 PICS A.4/1
and 8.2.16
Summary: Verify that the IUT can send a GUTI REALLOCATION COMMAND message with all
mandatory IEs to indicate GUTI reallocation procedure.
Configuration: CF_S1-MME
Test purpose: Ensure that the IUT
to indicate a GUTI reallocation procedure,
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating GUTI REALOCATION COMMAND
  containing an EPS_mobile_identity.
Comments:

5.2.2.2.2 Authentication group
TP_NAS_MME_MAU_01 Standards Reference: PICS item:
ETSI TS 124 301 [1], PICS A.4/2
clauses 5.4.2 and 8.2.7
Summary:
Verify that the IUT can send an AUTHENTICATION REQUEST message with all
mandatory IEs to indicate authentication procedure.
Configuration: CF_S1-MME
Test purpose: Ensure that the IUT
to indicate an authentication procedure,
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION REQUEST
  containing a NAS_key_set_identifier
  containing a Spare_half_octet
  containing an Authentication_parameter_RAND
  containing an Authentication_parameter_AUTN.
Comments: Preamble action: Attached procedure is exchanged.

ETSI

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10 ETSI TS 103 530-2 V1.1.1 (2018-02)
TP_NAS_MME_MAU_02 Standards Reference: PICS item:
ETSI TS 124 301 [1], clauses 5.4.2.2, PICS A.4/2.1
5.4.2.5 and 8.2.6
Summary: Verify that the IUT can send an AUTHENTICATION REQUEST message to indicate
authentication procedure and in case if authentication response is not valid and the
IMSI was used for identification in the initial NAS message the IUT sends
AUTHENTICATION REJECT message.
Configuration: CF_S1-MME
Test purpose: Ensure that the IUT
to indicate an authentication procedure,
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION REQUEST
  containing a NAS_key_set_identifier
  containing a Spare_half_octet
  containing an Authentication_parameter_RAND
  containing an Authentication_parameter_AUTN
on receipt of an UPLINK_NAS_TRANSPORT (see MI_S1AP_NAS_03)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION RESPONSE
  containing an Authentication_response_parameter
  indicating wrong response
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION REJECT.
Comments: Preamble action: Attached procedure is exchanged.

ETSI

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11 ETSI TS 103 530-2 V1.1.1 (2018-02)
TP_NAS_MME_MAU_03 Standards Reference: PICS item:
ETSI TS 124 301 [1], PICS A.4/2.2 and A.4/2.2.1
clauses 5.4.2.6 ¶ 3, 5.4.2.7 (item c),
8.2.7 and 8.2.18
Summary: Verify that the IUT can send an AUTHENTICATION REQUEST indicating invalid
MAC code (in the AUTN parameter) and when receives AUTHENTICATION
FAILURE the IUT sends IDENTITY REQUEST to obtain the IMSI from the UE. In
case the identification procedure shows an incorrect GUTI/IMSI mapping the IUT
sends new AUTHENTICATION REQUEST.
Configuration: CF_S1-MME
Test purpose: Ensure that the IUT
to indicate an authentication procedure,
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION REQUEST
  containing a NAS_key_set_identifier
  containing a Spare_half_octet
  containing an Authentication_parameter_RAND
  containing an Authentication_parameter_AUTN
  indicating invalid AUTN code
on receipt of an UPLINK_NAS_TRANSPORT (see MI_S1AP_NAS_03)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION FAILURE
  containing an EMM_cause
  indicating cause #20 "MAC failure"
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an IDENTITY REQUEST
  containing an Identity_type 2
  indicating an IMSI
  containing a Spare_half_octet
on receipt of an UPLINK_NAS_TRANSPORT (see MI_S1AP_NAS_03)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an IDENTITY RESPONSE
  containing a Mobile_identity
  indicating an incorrect IMSI
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION REQUEST
  containing a NAS_key_set_identifier
  containing a Spare_half_octet
  containing an Authentication_parameter_RAND
  containing an Authentication_parameter_AUTN.
Comments:
Preamble action: Attached procedure is exchanged.

ETSI

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12 ETSI TS 103 530-2 V1.1.1 (2018-02)
TP_NAS_MME_MAU_04 Standards Reference: PICS item:
ETSI TS 124 301 [1], PICS A.4/2.2 and A.4/2.2.2
clauses 5.4.2.6 ¶ 3, 5.4.2.7 (item c),
8.2.6 and 8.2.18
Summary: Verify that the IUT can send an AUTHENTICATION REQUEST indicating invalid
MAC code (in the AUTN parameter) and when receives AUTHENTICATION
FAILURE the IUT sends IDENTITY REQUEST to obtain the IMSI from the UE. In
case the identification procedure shows a correct GUTI/IMSI mapping the IUT sends
AUTHENTICATION REJECT.
Configuration: CF_S1-MME
Test purpose: Ensure that the IUT
to indicate an authentication procedure,
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION REQUEST
  containing a NAS_key_set_identifier
  containing a Spare_half_octet
  containing an Authentication_parameter_RAND
  containing an Authentication_parameter_AUTN
  indicating invalid AUTN code
on receipt of an UPLINK_NAS_TRANSPORT (see MI_S1AP_NAS_03)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an AUTHENTICATION FAILURE
  containing an EMM_cause
  indicating cause #20 "MAC failure"
sends a DOWNLINK_NAS_TRANSPORT (see MI_S1AP_NAS_02)
 containing a NAS-PDU
  containing a Protocol_discriminator
  containing a Security_header_type
  containing a Message_type
  indicating an IDENTITY REQUEST
  containing an Identity_type 2
  indicating an IMSI
  containing a Spare_half_octet
on receipt of an UPLINK_NAS_TRANSPORT (see MI_S1AP_NAS_03)
 containing a NAS-PDU
  containin
...