5G; 5GS; Special conformance testing functions for User Equipment (UE) (3GPP TS 38.509 version 15.6.1 Release 15)

RTS/TSGR-0538509vf61

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Published
Publication Date
16-Jan-2020
Current Stage
12 - Completion
Completion Date
17-Jan-2020
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ETSI TS 138 509 V15.6.1 (2020-01) - 5G; 5GS; Special conformance testing functions for User Equipment (UE) (3GPP TS 38.509 version 15.6.1 Release 15)
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ETSI TS 138 509 V15.6.1 (2020-01)






TECHNICAL SPECIFICATION
5G;
5GS;
Special conformance testing functions
for User Equipment (UE)
(3GPP TS 38.509 version 15.6.1 Release 15)

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3GPP TS 38.509 version 15.6.1 Release 15 1 ETSI TS 138 509 V15.6.1 (2020-01)



Reference
RTS/TSGR-0538509vf61
Keywords
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3GPP TS 38.509 version 15.6.1 Release 15 2 ETSI TS 138 509 V15.6.1 (2020-01)
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
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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.
Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 3GPP and ETSI identities can be found under http://webapp.etsi.org/key/queryform.asp.
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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3GPP TS 38.509 version 15.6.1 Release 15 3 ETSI TS 138 509 V15.6.1 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 8
3.3 Abbreviations . 8
4 UE special conformance test functions overview . 8
4.1 Requirements for UE support of test functions . 8
4.2 UE special conformance test functions concept . 8
5 UE special conformance test functions operation . 9
5.1 General . 9
5.2 Activation and deactivation of 5GS test mode bearers (UE test mode procedures) . 10
5.2.1 General . 10
5.2.2 Activate UE test mode . 10
5.2.3 Deactivate UE test mode . 10
5.3 Test loop functions . 10
5.3.1 General . 10
5.3.2 Close UE test loop . 11
5.3.3 Open UE test loop . 11
5.3.4 UE functionality when test loop is closed . 11
5.3.4.1 UE test loop mode A operation . 11
5.3.4.2 UE test loop mode B operation . 14
5.3.4.2.1 General . 14
5.3.4.2.2 UE test loop mode B operation for EN-DC and NGEN-DC . 15
5.3.4.2.3 UE test loop mode B operation for Standalone NR . 17
5.4 UE Beamlock test Function (UBF) . 19
5.4.1 General . 19
5.4.2 Activate Beamlock procedure . 19
5.4.2.1 Initiation . 19
5.4.2.2 Reception of ACTIVATE BEAMLOCK message by UE . 19
5.4.3 Deactivate Beamlock procedure . 20
5.4.3.1 Initiation . 20
5.4.3.2 Reception of DEACTIVATE BEAMLOCK message by UE . 20
5.4.3.3 Release of antenna beamlock by UE . 20
5.5 UE SS-RSRPB per receiver branch reporting . 20
5.5.1 General . 20
5.5.2 Initiation . 21
5.5.3 Reception of SS-RSRPB REPORT REQUEST message by UE . 21
5.6 UE Positioning test mode procedures . 22
5.6.1 Reset UE Positioning Stored Information . 22
5.6.1.1 General . 22
5.6.1.2 Initiation . 22
5.6.1.3 Reception of RESET UE POSITIONING STORED INFORMATION message by UE . 22
5.6.2 Update UE Location Information . 22
5.6.3 UTC time reset . 22
5.7 NSSAI delete test function . 22
5.7.1 General . 22
6 Test Mode Control message definitions . 24
ETSI

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3GPP TS 38.509 version 15.6.1 Release 15 4 ETSI TS 138 509 V15.6.1 (2020-01)
6.1 General . 24
6.2 Test mode messages . 24
6.2.1 ACTIVATE TEST MODE . 24
6.2.2 ACTIVATE TEST MODE COMPLETE . 25
6.2.3 DEACTIVATE TEST MODE . 25
6.2.4 DEACTIVATE TEST MODE COMPLETE . 25
6.3 Test loop messages . 25
6.3.1 CLOSE UE TEST LOOP . 25
6.3.2 CLOSE UE TEST LOOP COMPLETE. 25
6.3.3 OPEN UE TEST LOOP . 25
6.3.4 OPEN UE TEST LOOP COMPLETE . 25
6.3.5 Void . 26
6.3.6 Void . 26
6.4 Beamlock messages . 26
6.4.1 ACTIVATE BEAMLOCK . 26
6.4.2 ACTIVATE BEAMLOCK COMPLETE . 26
6.4.3 DEACTIVATE BEAMLOCK . 27
6.4.4 DEACTIVATE BEAMLOCK COMPLETE . 27
6.5 UE SS-RSRP per receiver branch reporting messages . 27
6.5.1 SS-RSRPB REPORT REQUEST . 27
6.5.2 SS-RSRPB REPORT RESPONSE . 28
6.6 UE Positioning messages . 28
6.6.1 RESET UE POSITIONING STORED INFORMATION . 28
6.6.2 UPDATE UE LOCATION INFORMATION . 28
6.7 NSSAI delete messages . 29
6.7.1 NSSAI DELETE REQUEST . 29
6.7.1 NSSAI DELETE RESPONSE . 30
7 Variables, constants and timers . 30
7.1 State variables . 30
7.2 Constants . 30
7.3 Timers . 31
7.4 Configurable parameters . 31
8 Electrical Man Machine Interface (EMMI) . 31
Annex A (informative): Change history . 32
History . 33

ETSI

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3GPP TS 38.509 version 15.6.1 Release 15 5 ETSI TS 138 509 V15.6.1 (2020-01)
Foreword
This Technical Specification has been produced by the 3rd Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
ETSI

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3GPP TS 38.509 version 15.6.1 Release 15 6 ETSI TS 138 509 V15.6.1 (2020-01)
1 Scope
The present document defines for User Equipment (UE) those special functions and their activation/deactivation
methods that are required in the UE for conformance testing purposes when the UE is connected to the 5G System
(5GS) via its radio interface(s).
The document also describes the operation of these special functions when the 5GS capable UEs are connected via a
non-5GS system e.g. E-UTRA FDD or TDD system.
Depending on the 5GS system's architecture some relevant for the UE for conformance testing special functions may be
defined in TS 36.509 [6].
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document unless the context in which the reference is made suggests a different Release is
relevant (information on the applicable release in a particular context can be found in e.g. test case title,
description or applicability, message description or content).
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 38.508-1: "5GS; User Equipment (UE) conformance specification; Part 1: Common test
environment ".
[3] 3GPP TS 38.523-1: "5GS; User Equipment (UE) conformance specification; Part 1: Protocol ".
[4] 3GPP TS 38.523-3: "5GS; User Equipment (UE) conformance specification; Part 3: Protocol Test
Suites "
[5] 3GPP TS 38.522: "NR; User Equipment (UE) conformance specification; Applicability of RF and
RRM test cases".
[6] 3GPP TS 36.509: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet
Core (EPC); Special conformance testing functions for User Equipment (UE)".
[7] 3GPP TS 24.007: "Mobile radio interface signalling layer 3; General Aspects".
[8] 3GPP TS 34.109: "Terminal logical test interface; Special conformance testing functions".
[9] 3GPP TS 44.014: "Individual equipment type requirements and interworking; Special
conformance testing functions".
[10] 3GPP TS 36.331: "Evolved Universal Terrestrial Radio Access (EUTRA) Radio Resource Control
(RRC) Protocol Specification".
[11] 3GPP TS 38.331: "NR Radio Resource Control (RRC) protocol specification".
[12] 3GPP TS 38.521-1: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 1: Range 1 Standalone".
[13] 3GPP TS 38.521-2: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 2: Range 2 Standalone".
ETSI

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3GPP TS 38.509 version 15.6.1 Release 15 7 ETSI TS 138 509 V15.6.1 (2020-01)
[14] 3GPP TS 38.521-3: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 3: Range 1 and Range 2 Interworking operation with other radios".
[15] 3GPP TS 38.521-4: "NR; User Equipment conformance specification; Radio transmission and
reception; Part 4: Performance".
[16] 3GPP TS 38.533: NR; "User Equipment (UE) conformance specification; Radio resource
management".
[17] 3GPP TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage
3".
[18] 3GPP TS 36.323: "Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data
Convergence Protocol (PDCP) specification".
[19] 3GPP TS 38.323: "NR; Packet Data Convergence Protocol (PDCP) specification".
[20] 3GPP TS 38.306: "NR; User Equipment (UE) radio access capabilities".
[21] 3GPP TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".
[22] 3GPP TS 38.215: "NR; Physical Layer Measurements".

3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following
apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP
TR 21.905 [1].
Frequency Range 2 (FR2): The frequency ranges in which NR can operate being in the range of 24250 MHz - 52600
MHz.
Logical Test Interface: interface which provides the logical service to interwork and to communicate between UE and
System Simulator during the test of a UE
SS (System Simulator): test system (or equipment) that drives the test process with UE, like 5G System simulator
TMC (Test Mode Control): UE protocol entity used by the SS to control the UE specific testing functions
NOTE: In other Special conformance testing functions for User Equipment (UE) 3GPP specifications e.g. 36.509
[6], the term Test Control (TC) is used for describing the same UE entity. The different names do not
preclude the implementation of a single entity to handle all the functionality in a UE supporting different
3GPP technologies.
UE (User Equipment): user equipment as defined in [1] that is under test
ETSI

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3GPP TS 38.509 version 15.6.1 Release 15 8 ETSI TS 138 509 V15.6.1 (2020-01)
3.2 Symbols
No specific symbols apply for the purposes of the present document.
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
3GPP TR 21.905 [1].
EMMI Electrical Man Machine Interface
FFS For further Study
FR2 Frequency Range 2
LB Loop Back
MTC Main Test Component
NSSAI Network Slice Selection Assistance Information
SS System Simulator
TMC Test Mode Control
4 UE special conformance test functions overview
4.1 Requirements for UE support of test functions
The UE special conformance test functions are required for the support of 5GS conformance testing. They form a part
of the core requirements and thus have a direct impact on the design of the UE. The use of the word "mandatory" in the
present specification shall be understood as a particular requirement being mandatory for performing UE conformance
testing.
NOTE: While the importance of conformance testing should not be underestimated, and hence is highly
recommended, the implementation of facilitation of it is left to the Device implementation.
4.2 UE special conformance test functions concept
The present specification defines the UE special conformance test functions including any relevant procedure and the
Test Mode Control (TMC) message contents used for information exchange.
The conformance test methods applied in RF/RRM Conformance Test Specification TS 38.521-1 [12], TS 38.521-2
[13], TS 38.521-3 [14], TS 38.521-4 [15] and TS 38.533 [16], and, the conformance test models used in Protocol
Conformance Test Specifications TS 38.523-1 [3] and TS 38.523-3 [4], as well as, common test environment definition
and Generic procedures specified in TS 38.508-1 [2] utilise the UE special conformance test functions. Default TMC
messages and information element contents utilised in all before mentioned test specifications are specified in TS
38.508-1 [2].
The UE special conformance test functions vary depending on the conformance testing functionality they are designed
to support. The following broader groups of UE special conformance test functions can be identified:
- Test Loop Functions: Functions which require a loop to be established between the UE and the System
Simulator (SS) to allow e.g. DL data packets sent by the SS to be looped back UL by the UE
- General Test Functions: Commands send by the SS e.g. to trigger a certain UE behaviour which may be a
behaviour determined by 3GPP core spec requirements or such needed to facilitate conformance testing and not
being part of any 3GPP core spec requirements, or, to provide to the UE information needed for the conformance
testing.
NOTE 1: An example for behaviour needed to facilitate conformance testing and not representing behaviour
determined by 3GPP core spec requirements is counting and reporting the number of received data
packets thereby providing means to the SS to verify 3GPP core spec requirements.
ETSI

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3GPP TS 38.509 version 15.6.1 Release 15 9 ETSI TS 138 509 V15.6.1 (2020-01)
The utilisation of any UE special conformance test functions shall be considered as putting the UE in a test mode. The
duration of the test mode depends on the UE special conformance test function and in most of the cases will be
delimited by an activation and a deactivation command. However, in the case of general test functions used e.g. only to
provide information relevant for the conformance testing the test mode can be considered as entered as soon as the
information is received and exited as soon as the information has been acted upon.
As a common rule the UE special conformance test functions provide access to isolated functions of the UE via the
radio interface without introducing new physical interfaces just for the reason of conformance testing. However, in
certain cases the usage of AT Commands may be required which will require an external interface e.g. EMMI.
NOTE 2: It should be emphasised that the UE test functions only describe the functional behaviour of the UE with
respect to its external interfaces; physical implementation of the UE test function is completely left open
to the manufacturer.
Depending on the conformance testing functionality they are designed to support, the UE special conformance test
functions may comprise:
- A single DL message (e.g. a test function intended to provide to the UE information needed for the conformance
testing)
- A Request/Acknowledgement type of 2 messages exchange, an DL message followed by a UL message, (e.g. a
test function intended to request the UE to execute an action which requires acknowledgment that request was
received and acted upon)
Furthermore, depending on the conformance test scenarios
- An UE special conformance test function can be used in isolation.
NOTE 3: An example for this is the provision to the UE of location informati
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