ETSI TS 138 300 V15.8.0 (2020-01)

5G; NR; Overall description; Stage-2 (3GPP TS 38.300 version 15.8.0 Release 15)

RTS/TSGR-0238300vf80

General Information

• Status: Published
• Publication Date: 16-Jan-2020
• Technical Committee: 3GPP RAN 2 - Radio layer 2 specification and Radio layer 3 RR specification
• Current Stage: 12 - Completion
• Completion Date: 17-Jan-2020

Standards Content (Sample)

ETSI TS 138 300 V15.8.0 (2020-01)






TECHNICAL SPECIFICATION
5G;
NR;
Overall description;
Stage-2
(3GPP TS 38.300 version 15.8.0 Release 15)

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3GPP TS 38.300 version 15.8.0 Release 15 1 ETSI TS 138 300 V15.8.0 (2020-01)



Reference
RTS/TSGR-0238300vf80
Keywords
5G
ETSI
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3GPP TS 38.300 version 15.8.0 Release 15 2 ETSI TS 138 300 V15.8.0 (2020-01)
Intellectual Property Rights
Essential patents
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pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
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Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
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ETSI

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3GPP TS 38.300 version 15.8.0 Release 15 3 ETSI TS 138 300 V15.8.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 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 . 11
4 Overall Architecture and Functional Split . 11
4.1 Overall Architecture . 11
4.2 Functional Split . 12
4.3 Network Interfaces . 14
4.3.1 NG Interface . 14
4.3.1.1 NG User Plane . 14
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 . 16
4.4 Radio Protocol Architecture . 16
4.4.1 User Plane . 16
4.4.2 Control Plane . 17
4.5 Multi-Radio Dual Connectivity . 17
4.6 Radio Access Network Sharing . 17
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 . 19
5.2.3 Physical downlink control channels . 19
5.2.4 Synchronization signal and PBCH block . 20
5.2.5 Physical layer procedures . 21
5.2.5.1 Link adaptation . 21
5.2.5.2 Power Control . 21
5.2.5.3 Cell search . 21
5.2.5.4 HARQ . 21
5.2.5.5 Reception of SIB1 . 21
5.3 Uplink . 21
5.3.1 Uplink transmission scheme . 21
5.3.2 Physical-layer processing for physical uplink shared channel . 22
5.3.3 Physical uplink control channel . 22
5.3.4 Random access . 23
5.3.5 Physical layer procedures . 23
5.3.5.1 Link adaptation . 23
5.3.5.2 Uplink Power control . 24
5.3.5.3 Uplink timing control . 24
5.3.5.4 HARQ . 24
5.4 Carrier aggregation . 24
5.4.1 Carrier aggregation . 24
5.4.2 Supplementary Uplink . 24
5.5 Transport Channels. 24
6 Layer 2 . 25
ETSI

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3GPP TS 38.300 version 15.8.0 Release 15 4 ETSI TS 138 300 V15.8.0 (2020-01)
6.1 Overview . 25
6.2 MAC Sublayer . 27
6.2.1 Services and Functions . 27
6.2.2 Logical Channels . 28
6.2.3 Mapping to Transport Channels. 28
6.2.4 HARQ . 28
6.3 RLC Sublayer . 28
6.3.1 Transmission Modes . 28
6.3.2 Services and Functions . 29
6.3.3 ARQ . 29
6.4 PDCP Sublayer . 29
6.4.1 Services and Functions . 29
6.5 SDAP Sublayer . 30
6.6 L2 Data Flow . 30
6.7 Carrier Aggregation . 30
6.8 Dual Connectivity. 32
6.9 Supplementary Uplink . 32
6.10 Bandwidth Adaptation . 32
7 RRC . 33
7.1 Services and Functions . 33
7.2 Protocol States . 34
7.3 System Information Handling . 34
7.3.1 Overview . 34
7.3.2 Scheduling . 36
7.3.3 SI Modification . 36
7.4 Access Control . 36
7.5 UE Capability Retrieval framework . 36
7.6 Transport of NAS Messages . 37
7.7 Carrier Aggregation . 37
7.8 Bandwidth Adaptation . 37
7.9 UE Assistance Information. 37
8 NG Identities . 38
8.1 UE Identities . 38
8.2 Network Identities . 38
8.3 User Data Transport on the CN-RAN Interface . 39
9 Mobility and State Transitions . 39
9.1 Overview . 39
9.2 Intra-NR . 40
9.2.1 Mobility in RRC_IDLE . 40
9.2.1.1 Cell Selection . 40
9.2.1.2 Cell Reselection . 40
9.2.1.3 State Transitions . 41
9.2.2 Mobility in RRC_INACTIVE. 42
9.2.2.1 Overview . 42
9.2.2.2 Cell Reselection . 43
9.2.2.3 RAN-Based Notification Area . 43
9.2.2.4 State Transitions . 44
9.2.2.4.1 UE triggered transition from RRC_INACTIVE to RRC_CONNECTED . 44
9.2.2.4.2 Network triggered transition from RRC_INACTIVE to RRC_CONNECTED . 46
9.2.2.5 RNA update. 46
9.2.3 Mobility in RRC_CONNECTED . 48
9.2.3.1 Overview . 48
9.2.3.2 Handover . 49
9.2.3.2.1 C-Plane Handling . 49
9.2.3.2.2 U-Plane Handling . 51
9.2.3.2.3 Data Forwarding . 52
9.2.3.3 Re-establishment procedure . 54
9.2.4 Measurements . 55
9.2.5 Paging . 57
9.2.6 Random Access Procedure . 58
ETSI

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3GPP TS 38.300 version 15.8.0 Release 15 5 ETSI TS 138 300 V15.8.0 (2020-01)
9.2.7 Radio Link Failure . 59
9.2.8 Beam failure detection and recovery . 59
9.2.9 Timing Advance . 59
9.3 Inter RAT . 60
9.3.1 Intra 5GC . 60
9.3.1.1 Cell Reselection . 60
9.3.1.2 Handover . 60
9.3.1.3 Measurements . 60
9.3.2 From 5GC to EPC . 61
9.3.2.1 Cell Reselection . 61
9.3.2.2 Handover and redirection . 61
9.3.2.3 Measurements . 61
9.3.2.4 Data Forwarding for the Control Plane . 61
9.3.2.5 Data Forwarding for the User Plane . 61
9.3.3 From EPC to 5GC . 62
9.3.3.1 Data Forwarding for the Control Plane . 62
9.3.3.2 Data Forwarding for the User Plane . 62
9.4 Roaming and Access Restrictions . 63
10 Scheduling . 63
10.1 Basic Scheduler Operation . 63
10.2 Downlink Scheduling . 63
10.3 Uplink Scheduling . 64
10.4 Measurements to Support Scheduler Operation . 64
10.5 Rate Control . 65
10.5.1 Downlink . 65
10.5.2 Uplink . 65
10.6 Activation/Deactivation Mechanism . 65
10.7 E-UTRA-NR Cell Resource Coordination . 66
10.8 Cross Carrier Scheduling . 66
11 UE Power Saving . 66
12 QoS . 67
12.1 Overview . 67
12.2 Explicit Congestion Notification . 69
13 Security. 70
13.1 Overview and Principles . 70
13.2 Security Termination Points . 72
13.3 State Transitions and Mobility . 72
14 UE Capabilities . 72
15 Self-Configuration and Self-Optimisation . 73
15.1 Definitions . 73
15.2 Void . 73
15.3 Self-configuration . 73
15.3.1 Dynamic
...