|
TECHNICAL SPECIFICATION
5G;
NR;
Overall description;
Stage-2
(3GPP TS 38.300 version 15.2.0 Release 15)
---------------------- Page: 1 ----------------------
3GPP TS 38.300 version 15.2.0 Release 15 1 ETSI TS 138 300 V15.2.0 (2018-09)
Reference
RTS/TSGR-0238300vf20
Keywords
5G
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
If you find errors in the present document, please send your comment to one of the following services:
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2018.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3GPP TS 38.300 version 15.2.0 Release 15 2 ETSI TS 138 300 V15.2.0 (2018-09)
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.
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
---------------------- Page: 3 ----------------------
3GPP TS 38.300 version 15.2.0 Release 15 3 ETSI TS 138 300 V15.2.0 (2018-09)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 7
1 Scope . 8
2 References . 8
3 Abbreviations and Definitions . 9
3.1 Abbreviations . 9
3.2 Definitions . 10
4 Overall Architecture and Functional Split . 11
4.1 Overall Architecture . 11
4.2 Functional Split . 11
4.3 Network Interfaces . 13
4.3.1 NG Interface . 13
4.3.1.1 NG User Plane . 13
4.3.1.2 NG Control Plane . 14
4.3.2 Xn Interface . 15
4.3.2.1 Xn User Plane . 15
4.3.2.2 Xn Control Plane . 15
4.4 Radio Protocol Architecture . 16
4.4.1 User Plane . 16
4.4.2 Control Plane . 16
4.5 Multi-RAT Dual Connectivity . 16
5 Physical Layer . 17
5.1 Waveform, numerology and frame structure . 17
5.2 Downlink . 18
5.2.1 Downlink transmission scheme . 18
5.2.2 Physical-layer processing for physical downlink shared channel . 18
5.2.3 Physical downlink control channels . 18
5.2.4 Synchronization signal and PBCH . 19
5.2.5 Physical layer procedures . 20
5.2.5.1 Link adaptation . 20
5.2.5.2 Power Control . 20
5.2.5.3 Cell search . 20
5.2.5.4 HARQ . 20
5.2.5.5 Reception of SIB1 . 20
5.3 Uplink . 20
5.3.1 Uplink transmission scheme . 20
5.3.2 Physical-layer processing for physical uplink shared channel . 21
5.3.3 Physical uplink control channel . 21
5.3.4 Random access . 22
5.3.5 Physical layer procedures . 22
5.3.5.1 Link adaptation . 22
5.3.5.2 Uplink Power control . 23
5.3.5.3 Uplink timing control . 23
5.3.5.4 HARQ . 23
5.4 Carrier aggregation . 23
5.4.1 Carrier aggregation . 23
5.4.2 Supplemental Uplink . 23
5.5 Transport Channels. 23
6 Layer 2 . 24
6.1 Overview . 24
6.2 MAC Sublayer . 26
ETSI
---------------------- Page: 4 ----------------------
3GPP TS 38.300 version 15.2.0 Release 15 4 ETSI TS 138 300 V15.2.0 (2018-09)
6.2.1 Services and Functions . 26
6.2.2 Logical Channels . 26
6.2.3 Mapping to Transport Channels. 26
6.2.4 HARQ . 27
6.3 RLC Sublayer . 27
6.3.1 Transmission Modes . 27
6.3.2 Services and Functions . 27
6.3.3 ARQ . 27
6.4 PDCP Sublayer . 28
6.4.1 Services and Functions . 28
6.5 SDAP Sublayer . 28
6.6 L2 Data Flow . 28
6.7 Carrier Aggregation . 29
6.8 Dual Connectivity. 30
6.9 Supplementary Uplink . 30
6.10 Bandwidth Adaptation . 30
7 RRC . 31
7.1 Services and Functions . 31
7.2 Protocol States . 31
7.3 System Information Handling . 32
7.3.1 Overview . 32
7.3.2 Scheduling . 33
7.3.3 SI Modification . 34
7.4 Access Control . 34
7.5 UE Capability Retrieval framework . 34
7.6 Transport of NAS Messages . 34
7.7 Carrier Aggregation . 34
7.8 Bandwidth Adaptation . 35
8 NG Identities . 35
8.1 UE Identities . 35
8.2 Network Identities . 36
9 Mobility and State Transitions . 36
9.1 Overview . 36
9.2 Intra-NR . 37
9.2.1 Mobility in RRC_IDLE . 37
9.2.1.1 Cell Selection . 37
9.2.1.2 Cell Reselection . 37
9.2.2 Mobility in RRC_INACTIVE. 38
9.2.2.1 Overview . 38
9.2.2.2 Cell Reselection . 39
9.2.2.3 RAN-Based Notification Area . 39
9.2.2.4 State Transitions . 39
9.2.2.4.1 UE triggered transition from RRC_INACTIVE to RRC_CONNECTED . 39
9.2.2.4.2 Network triggered transition from RRC_INACTIVE to RRC_CONNECTED . 40
9.2.2.5 RNA update. 40
9.2.3 Mobility in RRC_CONNECTED . 41
9.2.3.1 Overview . 41
9.2.3.2 Handover . 42
9.2.3.2.1 C-Plane Handling . 42
9.2.3.2.2 U-Plane Handling . 44
9.2.4 Measurements . 45
9.2.5 Paging . 47
9.2.6 Random Access Procedure . 47
9.2.7 Radio Link Failure . 48
9.3 Inter RAT . 48
9.3.1 Intra 5GC . 48
9.3.1.1 Cell Reselection . 48
9.3.1.2 Handover . 48
9.3.1.3 Measurements . 49
9.3.2 From 5GC to EPC . 49
ETSI
---------------------- Page: 5 ----------------------
3GPP TS 38.300 version 15.2.0 Release 15 5 ETSI TS 138 300 V15.2.0 (2018-09)
9.3.2.1 Cell Reselection . 49
9.3.2.2 Handover . 49
9.3.2.3 Measurements . 49
9.3.2.4 Data Forwarding . 49
9.4 Roaming and Access Restrictions . 50
10 Scheduling . 50
10.1 Basic Scheduler Operation . 50
10.2 Downlink Scheduling . 51
10.3 Uplink Scheduling . 51
10.4 Measurements to Support Scheduler Operation . 52
10.5 Rate Control . 52
10.5.1 Downlink . 52
10.5.2 Uplink . 52
10.6 Activation/Deactivation Mechanism . 52
10.7 E-UTRA-NR Physical Layer Resource Coordination . 53
11 UE Power Saving . 53
12 QoS . 53
13 Security. 56
13.1 Overview and Principles . 56
13.2 Security Termination Points . 58
13.3 State Transitions and Mobility . 58
14 UE Capabilities . 58
15 Self-Configuration and Self-Optimisation . 58
15.1 Definitions . 59
15.2 UE Support for self-configuration and self-optimisation . 59
15.3 Self-configuration . 59
15.3.1 Dynamic configuration of the NG-C interface. 59
15.3.1.1 Prerequisites . 59
15.3.1.2 SCTP initialization . 59
15.3.1.3 Application layer initialization . 59
15.3.2 Dynamic Configuration of the Xn interface . 59
15.3.2.1 Prerequisites . 59
15.3.2.2 SCTP initialization . 59
15.3.2.3 Application layer initialization . 59
15.3.3 Automatic Neighbour Cell Relation Function . 60
15.3.3.1 General . 60
15.3.3.2 Intra-system – intra NR Automatic Neighbour Cell Relation Function . 61
15.3.3.3 Intra-system – intra E-UTRA Automatic Neighbour Cell Relation Function . 61
15.3.3.4 Intra-system – inter RAT Automatic Neighbour Cell Relation Function . 61
15.3.3.5 Inter-system Automatic Neighbour Cell Relation Function . 62
15.3.4 Xn-C TNL address discovery . 63
16 Verticals Support .
...