3GPP TS 36.300 V15.0.0 (2017-12)
`
`Technical Specification
`3rd Generation Partnership Project;
`Technical Specification Group Radio Access Network;
`Evolved Universal Terrestrial Radio Access (E-UTRA)
`and Evolved Universal Terrestrial Radio Access Network
`(E-UTRAN);
`Overall description;
`Stage 2
`(Release 15)
`
`
`
`
`
`
`The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.
`The present document has not been subject to any approval process by the 3GPP Organizational Partners and shall not be implemented.
`This Specification is provided for future development work within 3GPP only. The Organizational Partners accept no liability for any use of this Specification.
`Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organizational Partners' Publications Offices.
`
`
`
`

`

`
`Release 15
`
`2
`
`3GPP TS 36.300 V15.0.0 (2017-12)
`
`
`
`
`
`
`
`Keywords
`LTE, E-UTRAN, stage 2, radio, architecture
`
`3GPP
`
`Postal address
`
`
`3GPP support office address
`650 Route des Lucioles - Sophia Antipolis
`Valbonne - FRANCE
`Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
`
`Internet
`http://w w w.3gpp.org
`
`Copyright Notification
`
`No part may be reproduced except as authorized by written permission.
`The copyright and the foregoing restriction extend to reproduction in all media.
`
`© 2017, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).
`All rights reserved.
`
`UMTS™ is a Trade Mark of ETSI registered for the benefit of its members
`3GPP™ is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners
`LTE™ is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners
`GSM® and the GSM logo are registered and owned by the GSM Association
`Bluetooth® is a Trade Mark of the Bluetooth SIG registered for the benefit of its members
`
`3GPP
`
`

`

`
`Release 15
`
`3
`
`3GPP TS 36.300 V15.0.0 (2017-12)
`
`Contents
`Foreword..................................................................................................................................... 16
`1
`Scope................................................................................................................................. 17
`2
`References .......................................................................................................................... 17
`3
`Definitions, symbols and abbreviations ................................................................................... 20
`3.1
`Definitions................................................................................................................................................................ 20
`3.2
`Abbreviations........................................................................................................................................................... 22
`4
`Overall architecture.............................................................................................................. 27
`4.1
`Functional Split........................................................................................................................................................ 28
`4.2
`Void .......................................................................................................................................................................... 30
`4.2.1
`Void .................................................................................................................................................................... 30
`4.2.2
`Void .................................................................................................................................................................... 30
`4.3
`Radio Protocol architecture..................................................................................................................................... 30
`4.3.1
`User plane .......................................................................................................................................................... 30
`4.3.2
`Control plane...................................................................................................................................................... 31
`4.4
`Synchronization ....................................................................................................................................................... 31
`4.5
`IP fragmentation ...................................................................................................................................................... 32
`4.6
`Support of HeNBs ................................................................................................................................................... 32
`4.6.1
`Architecture........................................................................................................................................................ 32
`4.6.2
`Functional Split.................................................................................................................................................. 33
`4.6.3
`Interfaces ............................................................................................................................................................ 36
`4.6.3.1
`Protocol Stack for S1 User Plane ............................................................................................................... 36
`4.6.3.2
`Protocol Stacks for S1 Control Plane ......................................................................................................... 36
`4.6.3.3
`Protocol Stack for S5 interface ................................................................................................................... 37
`4.6.3.4
`Protocol Stack for SGi interface ................................................................................................................. 37
`4.6.3.5
`Protocol Stack for X2 User Plane and X2 Control Plane ......................................................................... 37
`4.6.4
`Void .................................................................................................................................................................... 37
`4.6.5
`Support of LIPA with HeNB ............................................................................................................................ 37
`4.6.6
`Support of X2 GW............................................................................................................................................. 39
`4.6.6.1
`Enhanced TNL Address Discovery ............................................................................................................ 40
`4.6.6.2
`Routing of X2AP messages ........................................................................................................................ 40
`4.6.6.3
`(H)eNB unavailability ................................................................................................................................. 40
`4.6.6.4
`(H)eNB registration ..................................................................................................................................... 40
`4.7
`Support for relaying................................................................................................................................................. 40
`4.7.1
`General ............................................................................................................................................................... 40
`4.7.2
`Architecture........................................................................................................................................................ 40
`4.7.3
`S1 and X2 user plane aspects............................................................................................................................ 41
`4.7.4
`S1 and X2 control plane aspects....................................................................................................................... 42
`4.7.5
`Radio protocol aspects ...................................................................................................................................... 43
`4.7.6
`Signalling procedures ........................................................................................................................................ 44
`4.7.6.1
`RN attach procedure .................................................................................................................................... 44
`4.7.6.2
`E-RAB activation/modification .................................................................................................................. 45
`4.7.6.3
`RN startup procedure .................................................................................................................................. 45
`4.7.6.4
` RN detach procedure .................................................................................................................................. 46
`4.7.6.5
`Neighbouring Information Transfer ........................................................................................................... 47
`4.7.6.6
`Mobility to or from RN ............................................................................................................................... 47
`4.7.7
`Relay Node OAM Aspects................................................................................................................................ 47
`4.7.7.1
`Architecture.................................................................................................................................................. 47
`4.7.7.2
` OAM Traffic QoS Requirements .............................................................................................................. 48
`4.7.7.3
`Security Aspects .......................................................................................................................................... 48
`4.7.7.4
`Void .............................................................................................................................................................. 48
`4.7.7.5
`OAM Requirements for Configuration Parameters................................................................................... 48
`4.7.7.5.1
`Parameters Associated with Relay Bearer Mapping ........................................................................... 48
`4.8
`Support of SIPTO at the Local Network................................................................................................................ 48
`4.8.1
`General ............................................................................................................................................................... 48
`4.8.2
`SIPTO at the Local Network with collocated L-GW ...................................................................................... 48
`4.8.3
`Support for SIPTO@LN with Stand-Alone Gateway..................................................................................... 50
`
`3GPP
`
`

`

`
`Release 15
`
`4
`
`3GPP TS 36.300 V15.0.0 (2017-12)
`
`4.9
`4.9.1
`4.9.2
`4.9.3
`4.9.3.1
`4.9.3.2
`4.9.3.3
`4.9.3.4
`4.10
`5
`5.1
`5.1.1
`5.1.1a
`5.1.2
`5.1.3
`5.1.4
`5.1.4a
`5.1.5
`5.1.5a
`5.1.6
`5.1.7
`5.1.7.1
`5.1.7.2
`5.1.7.3
`5.1.7.3a
`5.1.8
`5.1.9
`5.2
`5.2.1
`5.2.1a
`5.2.2
`5.2.3
`5.2.3a
`5.2.4
`5.2.4a
`5.2.5
`5.2.5a
`5.2.6
`5.2.7
`5.2.7.1
`5.2.7.2
`5.2.7.3
`5.2.8
`5.3
`5.3.1
`5.3.1a
`5.4
`5.4.1
`5.4.2
`5.5
`5.5a
`5.5.1
`5.6
`5.6.1
`5.6.2
`5.6.3
`5.6.4
`5.6.5
`5.6.5.1
`5.6.6
`5.7
`
`Support for Dual Connectivity................................................................................................................................ 50
`General ............................................................................................................................................................... 50
`Radio Protocol Architecture ............................................................................................................................. 50
`Network Interfaces ............................................................................................................................................ 50
`E-UTRAN Control Plane for Dual Connectivity ...................................................................................... 50
`E-UTRAN User Plane for Dual Connectivity ........................................................................................... 51
`Support of HeNBs for Dual Connectivity.................................................................................................. 52
`Support of SIPTO@LN and LIPA for Dual Connectivity........................................................................ 52
`NB-IoT ..................................................................................................................................................................... 53
`Physical Layer for E-UTRA .................................................................................................. 53
`Downlink Transmission Scheme ............................................................................................................................ 56
`Basic transmission scheme based on OFDM................................................................................................... 56
`Basic transmission scheme based on OFDM for NB-IoT .............................................................................. 57
`Physical-layer processing.................................................................................................................................. 57
`Physical downlink control channels ................................................................................................................. 57
`Downlink Reference signal and synchronization signals ............................................................................... 58
`Downlink Reference signal and synchronization signals for NB-IoT ........................................................... 58
`Downlink multi-antenna transmission ............................................................................................................. 59
`Downlink multi-antenna transmission for NB-IoT ......................................................................................... 59
`MBSFN transmission ........................................................................................................................................ 59
`Physical layer procedure ................................................................................................................................... 59
`Link adaptation ............................................................................................................................................ 59
`Power Control .............................................................................................................................................. 59
`Cell search.................................................................................................................................................... 60
` Cell search for NB-IoT............................................................................................................................... 60
`Physical layer measurements definition........................................................................................................... 60
`Coordinated Multi-Point transmission ............................................................................................................. 60
`Uplink Transmission Scheme ................................................................................................................................. 61
`Basic transmission scheme ............................................................................................................................... 61
`Basic transmission scheme for NB-IoT ........................................................................................................... 61
`Physical-layer processing.................................................................................................................................. 61
`Physical uplink control channel........................................................................................................................ 62
`Uplink control information for NB-IoT ........................................................................................................... 62
`Uplink Reference signal .................................................................................................................................... 62
` Uplink Reference signal for NB-IoT............................................................................................................... 63
`Random access preamble .................................................................................................................................. 63
`Random access preamble for NB-IoT .............................................................................................................. 63
`Uplink multi-antenna transmission .................................................................................................................. 63
`Physical channel procedure............................................................................................................................... 63
`Link adaptation ............................................................................................................................................ 63
`Uplink Power control .................................................................................................................................. 64
`Uplink timing control .................................................................................................................................. 64
`Coordinated Multi-Point reception................................................................................................................... 64
`Transport Channels.................................................................................................................................................. 64
`Mapping between transport channels and physical channels ......................................................................... 66
`Mapping between transport channels and narrowband physical channels .................................................... 66
`E-UTRA physical layer model................................................................................................................................ 67
`Void .................................................................................................................................................................... 67
`Void .................................................................................................................................................................... 67
`Carrier Aggregation................................................................................................................................................. 67
`Multi-carrier operation for NB-IoT ........................................................................................................................ 68
`SRS switching between component carriers.................................................................................................... 68
`Sidelink .................................................................................................................................................................... 69
`Basic transmission scheme ............................................................................................................................... 69
`Physical-layer processing.................................................................................................................................. 69
`Physical Sidelink control channel .................................................................................................................... 69
`Sidelink reference signals ................................................................................................................................. 69
`Physical channel procedure............................................................................................................................... 69
`Sidelink power control ................................................................................................................................ 69
`Physical layer measurements definition........................................................................................................... 69
`Licensed-Assisted Access ....................................................................................................................................... 69
`
`3GPP
`
`

`

`
`Release 15
`
`5
`
`3GPP TS 36.300 V15.0.0 (2017-12)
`
`Channel Access Priority Classes ...................................................................................................................... 70
`5.7.1
`Multiplexing of data .......................................................................................................................................... 70
`5.7.2
`Layer 2............................................................................................................................... 71
`6
`MAC Sublayer ......................................................................................................................................................... 73
`6.1
`Services and Functions...................................................................................................................................... 73
`6.1.1
`Logical Channels ............................................................................................................................................... 73
`6.1.2
`Control Channels ......................................................................................................................................... 73
`6.1.2.1
`Traffic Channels .......................................................................................................................................... 74
`6.1.2.2
`Mapping between logical channels and transport channels ............................................................................ 74
`6.1.3
`Mapping in Uplink ...................................................................................................................................... 74
`6.1.3.1
`Mapping in Downlink ................................................................................................................................. 75
`6.1.3.2
`Mapping in Sidelink .................................................................................................................................... 76
`6.1.3.3
`RLC Sublayer .......................................................................................................................................................... 76
`6.2
`Services and Functions...................................................................................................................................... 76
`6.2.1
`PDU Structure.................................................................................................................................................... 76
`6.2.2
`PDCP Sublayer ........................................................................................................................................................ 77
`6.3
`Services and Functions...................................................................................................................................... 77
`6.3.1
`PDU Structure.................................................................................................................................................... 78
`6.3.2
`Carrier Aggregation................................................................................................................................................. 78
`6.4
`Dual Connectivity.................................................................................................................................................... 79
`6.5
`RRC .................................................................................................................................. 80
`7
`Services and Functions............................................................................................................................................ 80
`7.1
`RRC protocol states & state transitions ................................................................................................................. 81
`7.2
`Transport of NAS messages ................................................................................................................................... 82
`7.3
`CIoT signalling reduction optimizations................................................................................................................ 82
`7.3a
`General ............................................................................................................................................................... 82
`7.3a.1
`Control Plane CIoT EPS optimizations............................................................................................................ 82
`7.3a.2
`User Plane CIoT EPS optimizations ................................................................................................................ 83
`7.3a.3
`System Information ................................................................................................................................................. 86
`7.4
`Carrier Aggregation................................................................................................................................................. 88
`7.5
`Dual Connectivity.................................................................................................................................................... 88
`7.6
`E-UTRAN identities............................................................................................................. 89
`8
`E-UTRAN related UE identities............................................................................................................................. 89
`8.1
`Network entity related Identities ............................................................................................................................ 90
`8.2
`Sidelink communication and V2X Sidelink Communication related identities.................................................. 90
`8.3
`MBMS related identities ......................................................................................................................................... 91
`8.4
`ARQ and HARQ ................................................................................................................. 91
`9
`HARQ principles ..................................................................................................................................................... 91
`9.1
`ARQ principles ........................................................................................................................................................ 93
`9.2
`Void .......................................................................................................................................................................... 93
`9.3
`10 Mobility ............................................................................................................................. 93
`10.1
`Intra E-UTRAN ....................................................................................................................................................... 94
`10.1.1
`Mobility Management in ECM-IDLE.............................................................................................................. 94
`10.1.1.1
`Cell selection................................................................................................................................................ 94
`10.1.1.2
`Cell reselection ............................................................................................................................................ 94
`10.1.1.3
`Void .............................................................................................................................................................. 95
`10.1.1.4
`Void .............................................................................................................................................................. 95
`10.1.1.5
`Void .............................................................................................................................................................. 95
`10.1.2
`Mobility Management in ECM-CONNECTED .............................................................................................. 95
`10.1.2.1
`Handover ...................................................................................................................................................... 96
`10.1.2.1.1
`C-plane handling .................................................................................................................................... 97
`10.1.2.1.2
`U-plane handling.................................................................................................................................. 100
`10.1.2.2
`Path Switch ................................................................................................................................................ 101
`10.1.2.2.1
`Path Switch upon handover................................................................................................................. 101
`10.1.2.2.2
`Path Update upon Dual Connectivity specific activities ................................................................... 102
`10.1.2.2.3
`Path Switch upon UE context resume ................................................................................................ 102
`10.1.2.3
`Data forwarding ......................................................................................................................................... 102
`10.1.2.3.1
`For RLC-AM DRBs ............................................................................................................................ 102
`10.1.2.3.2
`For RLC-UM DRBs ............................................................................................................................ 103
`
`3GPP
`
`

`

`
`Release 15
`
`6
`
`3GPP TS 36.300 V15.0.0 (2017-12)
`
`10.1.2.3.3
`10.1.2.3.4
`10.1.2.4
`10.1.2.5
`10.1.2.6
`10.1.2.7
`10.1.2.8
`10.1.2.8.1
`10.1.2.8.2
`10.1.2.8.2.1
`10.1.2.8.3
`10.1.2.8.4
`10.1.2.8.5
`10.1.2.8.6
`10.1.2.8.7
`10.1.2.8.8
`10.1.2.8.9
`10.1.2.9
`10.1.2.9.1
`10.1.3
`10.1.3.1
`10.1.3.2
`10.1.4
`10.1.5
`10.1.5.1
`10.1.5.2
`10.1.5.3
`10.1.6
`10.1.7
`10.1.8
`10.1.8a
`10.2
`10.2.1
`10.2.2
`10.2.2a
`10.2.2b
`10.2.2b.1
`10.2.2b.1.1
`10.2.2b.1.2
`10.2.3
`10.2.3.1
`10.2.3.2
`10.2.3.3
`10.2.3.4
`10.2.4
`10.2.5
`10.3
`10.3.1
`10.3.2
`10.3.2.1
`10.3.2.2
`10.3.2.2.1
`10.3.2.2.1.1
`10.3.2.2.1.2
`10.3.2.2.1.2.1
`10.3.2.2.1.2.2
`10.3.2.2.1.2.3
`10.3.2.2.1.3
`10.3.2.2.1.4
`10.3.2.2.1.5
`10.3.2.2.2
`10.3.2.3
`
`SRB handling ....................................................................................................................................... 103
`User data forwarding for Dual Connectivity...................................................................................... 103
`Void ............................................................................................................................................................ 103
`Void ............................................................................................................................................................ 103
`Void ............................................................................................................................................................ 103
`Timing Advance ........................................................................................................................................ 103
`Dual Connectivity operation ............................................................................................