Canonical Atlas record

TS 29.171

Location Services (LCS); LCS Application Protocol (LCS-AP) between the Mobile Management Entity (MME) and Evolved Serving Mobile Location Centre (E-SMLC); SLs interface

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Responsible WGC4

StatusUnder change control

Initial releaseRel-9

Selected releaseRel-14

Latest indexed version19.1.0

Series29

TypeTS

Release evolution

Compare evidence between releases

Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.

Release ledger

Version · WI · CR evidence by release

Rel-99.4.02 WI14 CRs · 6 approved

Rel-1010.5.01 WI21 CRs · 6 approved

Rel-1111.4.01 WI11 CRs · 4 approved

Rel-1212.3.01 WI6 CRs · 4 approved

Rel-1313.3.01 WI11 CRs · 5 approved

Rel-1414.3.04 WI17 CRs · 7 approved

Rel-1515.5.11 WI18 CRs · 9 approved

Rel-1616.6.02 WI11 CRs · 7 approved

Rel-1717.4.01 WI11 CRs · 7 approved

Rel-1818.1.00 WI4 CRs · 1 approved

Rel-1919.1.00 WI3 CRs · 1 approved

Rel-14 snapshot

Work affecting this release

17 indexed Change Requests · 4 connected Work Items.

Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0048 — Missing id-Coverage-Level

CR 0035 — Consistency for UE-based positioning method in LPP

CR 0035 rev.1 — Consistency for UE-based positioning method in LPP

CR 0036 — Cell Portion ID Extension

CR 0036 rev.1 — Cell Portion ID Extension

CR 0037 — Enhancements to Location Services for CIoT

CR 0037 rev.1 — Enhancements to Location Services for CIoT

CR 0037 rev.2 — Enhancements to Location Services for CIoT

CR 0037 rev.3 — Enhancements to Location Services for CIoT

CR 0038 — Location service message size adaptation according to coverage level

CR 0038 rev.1 — Location service message size adaptation according to coverage level

CR 0039 — LCS-AP corrections

Version history

Indexed versions

Showing 56 of 56 indexed versions.

19.1.0Rel-19CT#1112026-03-18

18.1.0Rel-18CT#1112026-03-18

17.4.0Rel-17CT#1112026-03-18

19.0.0Rel-19SA#1092025-10-08

18.0.0Rel-18SA#1032024-04-08

17.3.0Rel-17CT#1002023-06-23

16.6.0Rel-16CT#1002023-06-23

17.2.0Rel-17CT#98-e2022-12-15

16.5.0Rel-16CT#98-e2022-12-15

17.1.0Rel-17CT#97-e2022-09-23

16.4.0Rel-16CT#97-e2022-09-23

17.0.0Rel-17CT#95-e2022-03-18

16.3.0Rel-16CT#94-e2021-12-16

15.5.1Rel-15CT#90-e2021-03-11

16.2.0Rel-16CT#90-e2020-12-11

15.5.0Rel-15CT#90-e2020-12-11

16.1.0Rel-16CT#89-e2020-09-24

16.0.0Rel-16SA#88-e2020-07-08

15.4.0Rel-15CT#862019-12-20

15.3.0Rel-15CT#852019-09-18

14.3.0Rel-14CT#852019-09-18

15.2.0Rel-15CT#832019-03-22

15.1.0Rel-15CT#812018-09-24

15.0.0Rel-15CT#802018-06-18

14.2.0Rel-14CT#782017-12-21

14.1.0Rel-14CT#762017-06-19

13.3.0Rel-13CT#762017-06-19

12.3.0Rel-12CT#762017-06-19

14.0.0Rel-14CT#742016-12-17

13.2.0Rel-13CT#712016-03-17

13.1.0Rel-13CT#702015-12-18

12.2.0Rel-12CT#702015-12-17

11.4.0Rel-11CT#702015-12-17

10.5.0Rel-10CT#702015-12-17

13.0.0Rel-13CT#692015-09-23

12.1.0Rel-12CT#642014-06-25

12.0.0Rel-12CT#622013-12-17

11.3.0Rel-11CT#602013-06-24

11.2.0Rel-11CT#582012-12-21

10.4.0Rel-10CT#582012-12-21

11.1.0Rel-11CT#552012-03-22

11.0.0Rel-11CT#532011-09-26

9.4.0Rel-9CT#522011-06-15

10.3.0Rel-10CT#522011-06-15

9.3.0Rel-9CT#512011-04-06

10.2.0Rel-10CT#512011-04-06

9.2.0Rel-9CT#492010-09-28

10.1.0Rel-10CT#492010-09-28

9.1.0Rel-9CT#482010-06-17

10.0.0Rel-10CT#482010-06-17

9.0.0Rel-9CT#472010-04-06

2.0.0Rel-9 · pre-approvalCT#472010-03-19

1.0.0Rel-9 · pre-approvalCT#462009-12-12

0.3.0Rel-9 · pre-approval-2009-10-26

0.2.0Rel-9 · pre-approval-2009-09-08

0.1.0Rel-9 · pre-approval-2009-07-15

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 29.171

LCS_EPS-CPS

CT4 aspects of Control Plane LCS in the EPC

Rel-9official

TEI9

(Small) Technical Enhancements and Improvements for Rel-9

Rel-9parsed

TEI10

(Small) Technical Enhancements and Improvements for Rel-10

Rel-10parsed

TEI11

(Small) Technical Enhancements and Improvements for Rel-11

Rel-11parsed

TEI12

(Small) Technical Enhancements and Improvements for Rel-12

Rel-12parsed

TEI13

(Small) Technical Enhancements and Improvements for Rel-13

Rel-13parsed

LTE_FNBID-Core

Core part: Flexible eNB-ID and Cell-ID in E-UTRAN

Rel-14parsed

NB_IOTenh

Enhancements of NB-IoT

Rel-14parsed

TEI14

(Small) Technical Enhancements and Improvements for Rel-14

Rel-14parsed

UTRA_LTE_iPos_enh2-Core

Core part: Further Indoor Positioning Enhancements for UTRA and LTE

Rel-14parsed

LCS_LTE_acc_enh-Core

Core part: UE Positioning Accuracy Enhancements for LTE

Rel-15parsed

5G_eLCS

Enhancement to the 5GC LoCation Services

Historical association · verification pending

Rel-16historical link

TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Historical association · verification pending

Rel-16historical link

IoT_SAT_ARCH_EPS

Architecture support for NB-IoT/eMTC Non-Terrestrial Networks in EPS

Rel-17parsed

Knowledge graph

Related standards

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