ETSI TS 122 071 V15.1.0 (2020-03)

ETSI TS 122 071 V15.1.0 (2020-03)






TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
5G;
Location Services (LCS);
Service description;
Stage 1
(3GPP TS 22.071 version 15.1.0 Release 15)

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3GPP TS 22.071 version 15.1.0 Release 15 1 ETSI TS 122 071 V15.1.0 (2020-03)



Reference
RTS/TSGS-0122071vf10
Keywords
5G,GSM,LTE,UMTS
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3GPP TS 22.071 version 15.1.0 Release 15 2 ETSI TS 122 071 V15.1.0 (2020-03)
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.
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 22.071 version 15.1.0 Release 15 3 ETSI TS 122 071 V15.1.0 (2020-03)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2. References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions and abbreviations . 8
3.1 Abbreviations . 8
3.2 Definitions . 8
4 Functional Requirements . 10
4.0 General . 10
4.1 High Level Requirements . 10
4.2 Location Information . 12
4.2.1 Geographic Location. 12
4.2.2 Velocity . 12
4.2.3 Dispatchable Location . 12
4.3 Quality of Service . 12
4.3.1 Horizontal Accuracy . 12
4.3.2 Vertical Accuracy . 14
4.3.3 Response Time . 14
4.3.4 LCS QoS Class . 15
4.3.5 Dispatchable Location accuracy . 15
4.4 Reliability . 16
4.5 Priority . 16
4.6 Timestamp . 16
4.7 Security . 16
4.8 Privacy . 17
4.8.1 Service Type Privacy . 18
4.8.1.1 Standardized Service Types . 18
4.9 Service Authorization . 19
4.10 Service Activation and De-Activation . 19
4.11 Coverage. 20
4.12 Roaming Target UE. 20
4.13 Support for all UEs . 21
4.14 Support for Unauthorized UEs . 21
4.15 Periodic Location Reporting. 21
4.16 UE-Based Location Calculation . 22
4.17 UE_Assisted LCS Location Calculation . 22
4.18 Mobile Originating Location . 22
4.19 Network support for LCS . 23
5 Logical Description . 23
5.1 Logical Reference Model . 23
5.2 Functional Entities . 24
5.2.1 LCS Client . 24
5.2.2 LCS Server. 24
5.2.3 Positioning Function . 24
5.2.4 Target UE. 24
5.3 Functional Interfaces . 24
5.3.1 LCS Client / LCS Server Interface . 24
5.3.1.1 Location Service Request . 24
5.3.1.2 Location Service Response . 25
ETSI

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3GPP TS 22.071 version 15.1.0 Release 15 4 ETSI TS 122 071 V15.1.0 (2020-03)
5.3.1.3 Location Service Request Report . 26
5.4 Location information . 26
5.4.1 Sources of location information . 26
6 Service Provision . 26
6.1 Identification of a Target UE . 26
6.2 Location Information Provided to the LCS Client . 27
6.3 LCS Client Subscription . 27
6.4 Target UE Subscription . 28
6.4.1 Privacy Subscription Options . 28
6.4.2 Codeword . 28
6.4.2.1 Enhanced codeword . 28
6.4.3 Privacy Exception List . 28
6.4.4 Privacy Override Indicator . 30
6.4.5 Subscription to Mobile Originating Location . 30
6.4.6 Void . 30
6.4A Requestor . 30
6.5 Security . 30
6.6 Charging . 30
6.7 LCS Open Service Architecture and Application Programming Interface . 31
7 Provisioning and Administration . 31
7.1 Procedures for an LCS Client . 31
7.1.1 Provisioning . 31
7.1.2 Withdrawal . 31
7.1.3 Invocation . 31
7.2 Procedures for a Target UE . 32
7.2.1 Provisioning . 32
7.2.2 Withdrawal . 32
7.2.3 User Control. 32
7.3 Barring Capability of the Location Service . 32
8 Interactions with Bearer and Teleservices and Other Services . 32
9 Cross Phase Compatibility between releases . 33
9.1 Compatibility with existing standards . 33
9.2 Compatibility with future releases . 33
9.2.1 Void . 33
9.2.2 Location determination in call or PDP context activation and release . 33
9.2.3 Void . 33
9.2.4 Defined geographical areas . 33
9.2.5 Continuous check of location. 33
9.2.6 Identification of a target UE . 34
9.2.7 Void . 34
9.2.8 VHE . 34
Annex A (informative): USA FCC Wireless E911 Rules . 35
Annex B (informative): Descriptions of possible location based services . 37
B1 Public Safety Services . 37
B1.1 Emergency Services . 37
B1.1.1 Attributes . 37
B1.1.2 Emergency Alert Services . 37
B2 Location Based Charging . 37
B2.1 Attributes . 38
B2.1.1 Target Subscriber Notification . 38
B2.1.2 Charging . 38
B2.1.3 Roaming . 39
B3 Tracking Services . 39
B3.1 Fleet and Asset Management Services. 39
B3.2 Traffic Monitoring . 40
B3.2.1 Attributes . 40
B3.2.1.1 Privacy . 40
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3GPP TS 22.071 version 15.1.0 Release 15 5 ETSI TS 122 071 V15.1.0 (2020-03)
B4 Enhanced Call Routing . 40
B5 Location-Based Information Services . 40
B5.1 Navigation. 40
B5.2 City Sightseeing . 41
B5.3 Location Dependent Content Broadcast . 41
B5.4 Mobile Yellow Pages . 41
B5.5 Location Sensitive Internet . 41
B6 Network Enhancing Services . 41
B6.1 Applications for Network Planning . 41
B6.2 Applications for Network QoS Improvements . 41
B6.3 Improved Radio Resource Management . 42
Annex C (Informative): Attributes of Specific Services . 43
Annex D (informative): Change history . 51
History . 54

ETSI

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3GPP TS 22.071 version 15.1.0 Release 15 6 ETSI TS 122 071 V15.1.0 (2020-03)
Foreword
This Technical Specification (TS) has been produced by the 3GPP.
The contents of this document are subject to continuing work within the TSG and may change following formal TSG
approval. Should the TSG modify the contents of this TS, 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 specification;

ETSI

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3GPP TS 22.071 version 15.1.0 Release 15 7 ETSI TS 122 071 V15.1.0 (2020-03)
1 Scope
This document provides the Stage One description of Location Services (LCS). A Stage One description provides an
overall service description, primarily from the service subscriber's and user's points of view, but not dealing with the
details of the Man Machine Interface (MMI). This TS includes information applicable to network operators, service
providers and terminal, base station system, switch, and data base manufacturers.
NOTE: Location Services may be considered as a network provided enabling technology consisting of
standardized service capabilities which enable the provision of location-based applications. These
applications may be service provider specific. The description of the numerous and varied possible
location applications which are enabled by this technology are outside the scope of this specification.
However, clarifying examples of how the functionality being specified may be used to provide specific
location services is included in various sections of the specification.
This document provides core requirements to an extent sufficient to derive a complete definition of location services at
the service level. However, the present document also provides additional requirements which may suggest in a non-
normative manner certain ways the system may be implemented to support location services.
LCS can be offered without subscription to basic telecommunication services. LCS is available to the following
categories of LCS clients:
• Value Added Services LCS Clients – use LCS to support various value-added services. These clients can include
UE subscribers as well as non-subscribers to other services.
• PLMN Operator LCS Clients – use LCS to enhance or support certain O&M related tasks, supplementary
services, IN related services and bearer services and teleservices.
• Emergency Services LCS Clients – use LCS to enhance support for emergency calls from subscribers.
• Lawful Intercept LCS Clients – use LCS to support various legally required or sanctioned services.
LCS is applicable to any target UE whether or not the UE supports LCS, but with restrictions on choice of positioning
method or notification of a location request to the UE user when LCS or individual positioning methods, respectively,
are not supported by the UE.
LCS is being developed in phases with enhancements added in 3GPP releases.
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.
2.1 Normative references
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 23.032: "Universal Geographical Area Description".
[3] 3GPP TS 22.101: "Service principles".
[4] 3GPP TS 22.105: "Services and Service Capabilities".
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3GPP TS 22.071 version 15.1.0 Release 15 8 ETSI TS 122 071 V15.1.0 (2020-03)
[5] 3GPP TS 22.115: "Charging and Billing"
[6] Open Mobile Alliance (OMA): OMA-RD-Parlay_Service_Access-V1_0-20100427-A
[7] 3GPP TS 23.110: " UMTS Access Stratum; Services and Functions".
2.2 Informative references
[8] 3GPP TR 25.923: "Report on Location Services (LCS)".
[9] PD 30.lcs: "Project Plan for location services in UMTS".
[10] Third generation (3G) mobile communication system; Technical study report on the location
services and technologies, ARIB ST9 December 1998.
[11] The North American Interest Group of the GSM MoU ASSOCIATION: Location Based Services,
Service Requirements Document of the Services Working Group
[12] FCC, Fourth Report and Order: Wireless E911 Location Accuracy Requirements, February 3,
2015, https://www.fcc.gov/document/fcc-adopts-new-wireless-indoor-e911-location-accuracy-
requirements-0
[13] FCC, Erratum, Wireless E911 Location Accuracy Requirements, March 3, 2015,
https://apps.fcc.gov/edocs_public/index.do?document=332342
3 Definitions and abbreviations
3.1 Abbreviations
For the purposes of the present document, in addition to 3GPP TR.21.905, the following abbreviations apply:
BDS BeiDou Navigation Satellite System
BLE Bluetooth Low Energy
EGNOS European Geographic Navigation Overlay System
E-OTD Enhanced Observed Time Difference
GAGAN GPS Aided Geo Augmented Navigation (or GPS and Geo Augmented Navigation)
GLONASS GLObal NAvigation Satellite System
...