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TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Universal Terrestrial Radio Access (UTRA)
and Evolved UTRA (E-UTRA);
User Equipment (UE) performance requirements
for RAT-Independent positioning enhancements
(3GPP TS 37.171 version 14.6.0 Release 14)
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3GPP TS 37.171 version 14.6.0 Release 14 1 ETSI TS 137 171 V14.6.0 (2018-07)
Reference
RTS/TSGR-0437171ve60
Keywords
LTE,UMTS
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3GPP TS 37.171 version 14.6.0 Release 14 2 ETSI TS 137 171 V14.6.0 (2018-07)
Intellectual Property Rights
Essential patents
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Foreword
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, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
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 37.171 version 14.6.0 Release 14 3 ETSI TS 137 171 V14.6.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions, abbreviations and test tolerances . 7
3.1 Definitions . 7
3.2 Abbreviations . 7
3.3 Test tolerances . 7
4 General . 7
4.1 Introduction . 7
4.2 MBS Measurements . 7
4.2.1 General . 7
4.2.2 MBS measurement parameters . 7
4.2.3 MBS Measurement time . 7
4.2.4 RRC states for MBS measurements . 8
4.2.5 MBS Measurement Error Definitions . 9
4.3.2 WLAN Access Point Measurements. 9
4.3.2.1 E-UTRAN FDD-WLAN Access Point Measurements . 9
4.3.2.1.1 Introduction . 9
4.3.2.1.2 Measurement Requirements . 9
4.3.2.1.3 Measurement Reporting Delay . 9
4.3.2.2 E-UTRAN TDD-WLAN Access Point Measurements . 10
4.3.2.2.1 Introduction . 10
4.3.2.2.2 Measurement Requirements . 10
4.3.2.2.3 Measurement Reporting Delay . 10
4.4 Bluetooth Measurements . 10
4.4.1 General . 10
4.4.2.1 Introduction . 10
4.4.2.2 Measurement Requirements . 10
4.4.2.3 Measurement Reporting Delay. 11
5 MBS minimum performance requirements . 11
5.1 General . 11
5.2 Sensitivity . 11
5.3 Nominal Accuracy . 11
5.4 Dynamic Range . 12
5.5 Multipath . 12
6 Bluetooth performance requirements . 12
6.1 Introduction . 12
6.1.1 Bluetooth RSSI Measurement. 12
6.1.1.1 Measurement Accuracy . 12
7 WLAN Access Point Identification minimum performance requirements . 13
7.1 General . 13
7.2 WLAN Access Point Identification under Sensitivity conditions . 13
7.3 WLAN Access Point Identification under Nominal conditions . 13
7.4 WLAN Access Point Identification under Dynamic Range conditions . 13
Annex A (normative): Test Case Requirements . 14
A.1 Purpose of annex . 14
A.2 Requirement classification for statistical testing . 14
ETSI
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3GPP TS 37.171 version 14.6.0 Release 14 4 ETSI TS 137 171 V14.6.0 (2018-07)
A.3 UE Measurement Procedures . 14
A.3.1 MBS Measurement reporting delay test case . 14
A.3.1.1 Test Purpose and Environment . 14
A.3.1.2 Test Requirements . 15
A.3.2 WLAN Access Point Identification and Reporting Delay . 15
A.3.2.1 Void . 15
A.3.2.2 LTE-FDD: WLAN AP Identification and reporting delay under nominal conditions test . 15
A.3.2.2.1 Test purpose and Environment . 15
A.3.2.2.2 Test Requirements . 17
A.3.2.3 LTE-TDD: WLAN AP Identification and reporting delay under nominal conditions test . 18
A.3.2.3.1 Test purpose and Environment . 18
A.3.2.3.2 Test Requirements . 19
A.3.2.4 LTE-FDD: WLAN AP Identification and reporting delay under dynamic range conditions test . 20
A.3.2.4.1 Test purpose and Environment . 20
A.3.2.4.2 Test Requirements . 22
A.3.2.5 LTE-TDD: WLAN AP Identification and reporting delay under dynamic range conditions test . 22
A.3.2.5.1 Test purpose and Environment . 22
A.3.2.5.2 Test Requirements . 24
A.3.3 Bluetooth Measurement Requirements . 24
A.3.3.1 E-UTRAN FDD Bluetooth identification . 24
A.3.3.1.1 Test Purpose and Environment . 24
A.3.3.1.2 Test Requirements . 25
A.3.3.2 E-UTRAN TDD Bluetooth identification . 26
A.3.3.2.1 Test Purpose and Environment . 26
A.3.3.2.2 Test Requirements . 27
A.4 Measurement Performance Requirements . 28
A.4.1 General . 28
A.4.2 MBS Code Phase Measurement Accuracy Requirements in AWGN . 28
A.4.2.1 Test Purpose and Environment . 28
A.4.2.2 Test Requirements . 29
A.4.3 MBS Code Phase Measurement Accuracy Requirements in Multipath . 29
A.4.3.1 Test Purpose and Environment . 29
A.4.3.2 Test Requirements . 29
Annex B (normative): Assistance data required for testing (Release 14 and beyond) . 30
B.1 Introduction . 30
B.2 MBS Assistance Data . 30
Annex C (informative): Change history . 31
History . 32
ETSI
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3GPP TS 37.171 version 14.6.0 Release 14 5 ETSI TS 137 171 V14.6.0 (2018-07)
Foreword
rd
This Technical Specification has been produced by the 3 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 37.171 version 14.6.0 Release 14 6 ETSI TS 137 171 V14.6.0 (2018-07)
1 Scope
The present document establishes the minimum performance requirements for RAT-Independent Positioning
Enhancements for FDD or TDD mode of UTRA and E-UTRA for the User Equipment (UE).
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.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] ETSI TR 102 273-1-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties; Part 1: Uncertainties in the measurement of mobile
radio equipment characteristics; Sub-part 2: Examples and annexes".
[3] 3GPP TS 36.355: "Evolved Universal Terrestrial Radio Access (E-UTRA); LTE Positioning
Protocol (LPP)".
[4] 3GPP TS 36.509: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet
Core (EPC); Special conformance testing functions for User Equipment (UE)".
[5] 3GPP TS 36.942: Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Frequency (RF)
system scenarios".
[6] 3GPP TS 25.331: "Radio Resource Control (RRC); Protocol specification".
[7] ATIS-0500027: "Recommendations for Establishing Wide Scale Indoor Location Performance",
May 2015.
[8] 3GPP TS 34.109: "Terminal logical test interface; Special conformance testing functions ".
[9] 3GPP TS 37.571-1: "Universal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA)
and Evolved Packet Core (EPC); User Equipment (UE) conformance specification for UE
positioning; Part 1: Conformance test specification ".
[10] 3GPP TS 36.521-1: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment
(UE) conformance specification; Radio transmission and reception; Part 1: Conformance testing "
[11] 3GPP TS 36.133: "Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for
support of radio resource management".
[12] 3GPP TS 36.355: "Evolved Universal Terrestrial Radio Access (E-UTRA); LTE Positioning
Protocol (LPP)".
[13] Specification of the Bluetooth System version 4.2.
[14] 3GPP TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource
Control (RRC) protocol specification".
[15] IEEE Standard 802.11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
Specifications.
ETSI
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3GPP TS 37.171 version 14.6.0 Release 14 7 ETSI TS 137 171 V14.6.0 (2018-07)
3 Definitions, abbreviations and test tolerances
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].
3.2 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].
AWGN Additive White Gaussian Noise
EPA Extended Pedestrian A
E-UTRA Evolved UMTS Terrestrial Radio Access
FDD Frequency Division Duplex
LPP LTE Positioning Protocol
MBS Metropolitan Beacon System
RRC Radio Resource Control
RSSI Received Signal Strength Indicator
TDD Time Division Duplex
UE User Equipment
UTRA UMTS Terrestrial Radio Access
WLAN Wireless Local Area Network
3.3 Test tolerances
The requirements given in the present document make no allowance for measurement uncertainty. The test specification
3GPP TS 37.571 -1 [9] will define test tolerances. These test tolerances are individually calculated for each test. The
test tolerances are then added to the limits in the present document to create test limits. The measurement results are
compared against the test limits as defined by the shared risk principle.
Shared Risk is defined in ETSI TR 102 273-1-2 [2], subclause 6.5.
4 General
4.1 Introduction
The present document defines the minimum performance requirements for UEs that support RAT Independent
positioning technologies.
4.2 MBS Measurements
4.2.1 General
Clause 4.2 describes the measurements performed by the UE for MBS positioning.
4.2.2 MBS measurement parameters
The measurement parameters are the MBS code phase measurements contained in the TBS-MeasurementInformation IE
provided in the LPP message of type PROVIDE LOCATION INFORMATION [3] for LTE, and the UE Positioning
AddPos measured results IE in the MEASUREMENT REPORT message for UTRA [6].
4.2.3 MBS Measurement time
For LTE, MBS measurement time is defined as the time starting from the moment that the UE has received the LPP
message of type REQUEST LOCATION INFORMATION, and ending when the UE starts sending the LPP message of
ETSI
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3GPP TS 37.171 version 14.6.0 Release 14 8 ETSI TS 137 171 V14.6.0 (2018-07)
type PROVIDE LOCATION INFORMATION on the Uu interface. For tests that involve sending MBS assistance data
to the UE, the assistance data is sent prior to the PROVIDE LOCATION INFORMATION message. The response
times specified for all test cases are based on new measurements unless otherwise stated, i.e. the UE shall not re use any
information on measurements or other aiding data that was previously acquired or calculated and stored internally in the
UE. A dedicated test message 'RESET UE POSITIONING STORED INFORMATION' has been defined in TS 36.509
[4] clause 6.9 for the purpose of deleting this information.
For UTRA, MBS measurement time is defined as the time starting from the moment that the UE has received the final
RRC measurement control message containing reporting criteria different from "No Reporting" sent before the UE
sends the measurement report containing the MBS measured results, and ending when the UE starts sending the
measurement report containing the measured result on the Uu interface. The response times specified for all test cases
are based on new measurements unless otherwise stated, i.e. the UE shall not re use any information on measurements
or other aiding data that was previously acquired or calculated and stored internally in the UE. A dedicated test message
'RESET UE POSITIONING STORED INFORMATION' has been defined in TS 34.109 [8] clause 5.4 for the purpose
of deleting this information.
The measurements for n MBS beacons, enabled across the slots of an MBS transmission period [7], shall be available at
T T
the UE by , where can be expressed as:
MBS_meas MBS_meas
T =τ +10×ceil(n/10)×T +T
ms
MBS_meas MBS_TP Proc
where
T
is the total time for detecting and measuring n beacons
MBS_meas
is the elapsed time from the trigger of the measurement to the start of the first MBS transmission period
τ
T
is the MBS transmission period (1 second)
MBS_TP
T 10×ceil(n/10)×T T
is the processing time, an upper-bound for which can be given as where
Proc MBS_ slot MBS_ slot
is the duration of a MBS slot (100 ms) with continuous MBS transmissions
The last location request
Slot 1 Slot 2
received by higher layers
Beacon 1 Beacon 2
The last location request
1 sec
received by MBS physical layer
boundary
100 ms 100 ms
τ T (1 sec) T
MBS_TP Proc
n*T
MBS_TP
T
MBS_meas
Figure 4.2.3-1: MBS Measurement Time
For this requirement, the assumption is that there is zero frequency offset for the beacons and the UEs have a minimum
of 13 parallel correlators.
The test case requirements for MBS Measurement time can be found in clause A.3.
4.2.4 RRC states for MBS measurements
For LTE, the minimum MBS performance requirements are specified in clause 5 for RRC_CONNECTED state.
For UTRA, the minimum MBS performance requirements are specified in clause 5 for different RRC states that include
Cell_DCH and Cell_FACH.
ETSI
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3GPP TS 37.171 version 14.6.0 Release 14 9 ETSI TS 137 171 V14.6.0 (2018-07)
4.2.5 MBS Measurement Error Definitions
The code phase measurement error is defined as the difference between the actual code phase for a given MBS beacon,
and the estimated code phase for that beacon, as reported in the LPP message of type PROVIDE LOCATION
INFORMATION for LTE [3], and the UE Positioning AddPos measured results IE in the MEASUREMENT REPORT
message for UTRA [6]. This difference has to then be adjusted for the measurement bias introduced by the UE clock to
provide the final code phase measurement error.
4.3 WLAN Measurements
4.3.1 General
Clause 4.3 defines the measurement requirements for the measurements performed by the UE for WLAN based
positioning.
4.3.2 WLAN Access Point Measurements
4.3.2.1 E-UTRAN FDD-WLAN Access Point Measurements
4.3.2.1.1 Introduction
The requirements defined in section 4.3.2.1 shall apply provided the E-UTRA FDD UE has received WLAN-
RequestLocationInformation message from E-SMLC via LPP requesting the UE to report WLAN measurement for one
or more WLAN Access Points [12].
4.3.2.1.2 Measurement Requirements
The measurement delay reporting requirements for WLAN are defined in section 4.3.2.1.3. The WLAN Access Point
identification minimum performance requirements are defined in clause 7.
4.3.2.1.3 Measurement Reporting Delay
For LTE, WLAN measurement time is defined as the time starting from the moment that the UE has received the LPP
message of type REQUEST LOCATION INFORMATION, and ending when the UE starts sending the LPP message of
type PROVIDE LOCATION INFORMATION on the Uu interface. The response times specified for all test cases are
...