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TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
Technical Specifications and Technical Reports
for a UTRAN-based 3GPP system
(3GPP TS 21.101 version 15.1.0 Release 15)
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3GPP TS 21.101 version 15.1.0 Release 15 1 ETSI TS 121 101 V15.1.0 (2023-04)
Reference
RTS/TSGS-0021101vf10
Keywords
UMTS
ETSI
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3GPP TS 21.101 version 15.1.0 Release 15 2 ETSI TS 121 101 V15.1.0 (2023-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
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DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
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Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the
®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
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 https://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
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"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 21.101 version 15.1.0 Release 15 3 ETSI TS 121 101 V15.1.0 (2023-04)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 4
1 Scope . 5
2 References . 5
3 Abbreviations . 5
4 General .
...