Release ledger
Canonical Atlas record
TS 31.121
UICC-terminal interface; Universal Subscriber Identity Module (USIM) application test specification
Release evolution
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Rel-18 snapshot
Work affecting this release
78 indexed Change Requests · 3 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0611 — Corrrection to 5G AKA TC 15.4.1
CR 0610 — Corrrection to EAP-AKA TC 15.1.3
CR 0609 rev.1 — Correction to the title of TC 5.6.6
CR 0607 rev.1 — Update to SOR-CMCI related test cases
CR 0608 — Update to the applicability table
CR 0606 — Correction to 5G-AKA TC 15.2.5
CR 0603 — Correction to UAC TC 5.4.6
CR 0602 — Clean up the Mnemonic of feature options
CR 0601 — Correction to TC number of EFNASCONFIG – No E-UTRA Disabling In 5GS
CR 0600 — Removal of redundant spec reference in clause 2
CR 0598 rev.1 — Unify ngKSI in USIM test cases
CR 0599 — Correction of EFSOR-CMCI coding
Version history
Indexed versions
Showing 60 of 152 indexed versions.
Atlas classifications
Meaning and provenance
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Work Items
Standards work connected to TS 31.121
(Small) Technical Enhancements and Improvements for Rel-4
(Small) Technical Enhancements and Improvements for Rel-5
(Small) Technical Enhancements and Improvements for Rel-6
(Small) Technical Enhancements and Improvements for Rel-7
Study on 3GPP System Architecture Evolution
Rel-8 LTE 3G Long Term Evolution - Evolved Packet System RAN part
3GPP System Architecture Evolution Specification - Evolved Packet System (non RAN aspects)
Test interworking of IP Multimedia Services Identity Module (ISIM) terminals with IP Multimedia Subsystem (IMS)
Test interworking of LTE Terminals with the USIM
(Small) Technical Enhancements and Improvements for Rel-8
(Small) Technical Enhancements and Improvements for Rel-9
(Small) Technical Enhancements and Improvements for Rel-10
Deleted - Testing for Terminal support of Rel-10 USIM, ISIM and USAT features
(Small) Technical Enhancements and Improvements for Rel-11
(Small) Technical Enhancements and Improvements for Rel-12
Review of dedicated 3GPP UICC features
(Small) Technical Enhancements and Improvements for Rel-13
(Small) Technical Enhancements and Improvements for Rel-14
(Small) Test Technical Enhancements and Improvements for Rel-14
UE Conformance Test Aspects - CT6 aspects of 5G System
(Small) Test Technical Enhancements and Improvements for Rel-15
(Small) Technical Enhancements and Improvements for Rel-16
Historical association · verification pending(Small) Test Technical Enhancements and Improvements for Rel-16
UE Conformance Test Aspects Release 16
Non-Seamless WLAN offload in 5GS
(Small) Technical Enhancements and Improvements for Rel-17
Update of conformance test specifications to Rel-17
UE conformance test for NB-IoT/eMTC Non-Terrestrial Networks in EPS
(Small) Technical Enhancements and Improvements for Rel-18
Update of conformance test specifications to Rel-18
Update of conformance test specifications to Rel-19
USIM application test specification
(Small) Technical Enhancements and Improvements for R99
Characteristics of the USIM application
Knowledge graph
Related standards
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