3GPP TSG-RAN WG2 meeting #99bis
`
`R2-1710001
`
`Prague, Czech Republic, October 9 – 13, 2017
`
`Agenda Item:
`
`2.2
`
`Source:
`
`ETSI MCC
`
`Title:
`
`Report of 3GPP TSG RAN2#99 meeting, Berlin, Germany
`
`Document for: Approval
`
`Report of 3GPP TSG RAN WG2 meeting #99
`Berlin, Germany
`21 - 25 August, 2017
`
`Ex.1118
`APPLE INC. / Page 1 of 235
`
`

`

`Draft Report of 3GPP TSG RAN2#97, Athens. Greece, 13 - 17.02, 2017
`
`
`
`
`
`
`
`
`
`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://www.3gpp.org
`
`
`
`© 2017, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).
`All rights reserved.
`
`Page 2 of 235
`
`Ex.1118
`APPLE INC. / Page 2 of 235
`
`

`

`
`
`Draft Report of 3GPP TSG RAN2#97, Athens. Greece, 13 - 17.02, 2017
`
`Contents
`
`Organisation of the meeting ............................................................................................................................... 8
`
`Statistics/Executive Summary ............................................................................................................................ 8
`
`1
`1.1
`1.2
`1.3
`
`2
`2.1
`2.2
`2.3
`2.4
`2.5
`
`3
`
`Opening of the meeting (9 AM) ............................................................................................................... 9
`Call for IPR ........................................................................................................................................................ 9
`Network usage conditions .................................................................................................................................. 9
`Other .................................................................................................................................................................. 9
`
`General ................................................................................................................................................... 10
`Approval of the agenda .................................................................................................................................... 10
`Approval of the report of the previous meeting ............................................................................................... 10
`Reporting from other meetings ........................................................................................................................ 10
`Elections .......................................................................................................................................................... 11
`Others ............................................................................................................................................................... 11
`
`Incoming liaisons ................................................................................................................................... 12
`
`4-5 Void ........................................................................................................................................................ 13
`
`6
`
`7
`7.1
`7.2
`7.3
`7.4
`
`LTE: Rel-12 and earlier releases ............................................................................................................ 13
`
`LTE: Rel-13 ........................................................................................................................................... 18
`WI: Licensed-Assisted Access using LTE ....................................................................................................... 18
`WI: Further LTE Physical Layer Enhancements for MTC .............................................................................. 19
`WI: Narrowband IOT....................................................................................................................................... 25
`Other LTE Rel-13 WIs .................................................................................................................................... 26
`
`8
`8.1
`8.2
`8.2.1
`8.2.2
`8.3
`8.4
`8.5
`8.6
`8.7
`8.8
`8.9
`8.10
`8.11
`8.11.1
`8.11.2
`8.12
`8.12.1
`8.12.2
`8.13
`8.13.1
`8.13.2
`8.13.3
`8.14
`8.15
`8.16
`8.17
`8.18
`8.19
`8.20
`8.21
`8.22
`8.23
`
`LTE Rel-14 ............................................................................................................................................. 29
`WI: Enhanced LAA for LTE ........................................................................................................................... 29
`WI: Support for V2V services based on LTE sidelink..................................................................................... 29
`User plane .................................................................................................................................................. 30
`Control plane .............................................................................................................................................. 30
`Void ................................................................................................................................................................. 30
`Void ................................................................................................................................................................. 30
`WI: Enhanced LTE-WLAN Aggregation (eLWA) .......................................................................................... 30
`WI: Further mobility enhancements in LTE .................................................................................................... 30
`WI: Further Indoor Positioning enhancements for UTRA and LTE ................................................................ 31
`WI: L2 latency reduction techniques for LTE ................................................................................................. 31
`Void ................................................................................................................................................................. 31
`WI: eMBMS enhancements for LTE ............................................................................................................... 31
`WI: Enhancements of NB-IoT ......................................................................................................................... 32
`RRM Power Consumption ......................................................................................................................... 33
`Other........................................................................................................................................................... 35
`WI: Further Enhanced MTC for LTE .............................................................................................................. 38
`Multicast for feMTC and eNB-IoT ............................................................................................................ 38
`Other........................................................................................................................................................... 39
`WI: LTE-based V2X Services ......................................................................................................................... 41
`Stage 2 ........................................................................................................................................................ 41
`User plane .................................................................................................................................................. 42
`Control plane .............................................................................................................................................. 44
`WI: SRS switching between LTE component carriers .................................................................................... 49
`WI: Measurement Gap Enhancement for LTE ................................................................................................ 49
`Void ................................................................................................................................................................. 50
`WI: Performance enhancements for high speed scenario in LTE .................................................................... 50
`WI: Voice and Video enhancement for LTE ................................................................................................... 50
`New UE category with single receiver based on Category 1 for LTE ............................................................. 51
`Uplink Capacity Enhancements for LTE ......................................................................................................... 51
`WI: Enhancements on Full-Dimension (FD) MIMO for LTE ......................................................................... 52
`Void ................................................................................................................................................................. 52
`WI: Downlink Multiuser Superposition Transmission for LTE ...................................................................... 52
`
`Page 3 of 235
`
`Ex.1118
`APPLE INC. / Page 3 of 235
`
`

`

`
`
`8.24
`8.25
`
`9
`9.1
`9.2
`9.3
`9.4
`9.4.1
`9.4.2
`9.4.3
`9.4.4
`9.4.5
`9.4.6
`9.5
`9.5.1
`9.5.2
`9.5.3
`9.5.4
`9.6
`9.6.1
`9.6.2
`9.6.3
`9.7
`9.7.1
`9.7.2
`9.8
`9.8.1
`9.8.2
`9.8.3
`9.8.4
`9.8.5
`9.9
`9.9.1
`9.9.2
`9.9.3
`9.9.4
`9.10
`9.10.1
`9.10.2
`9.10.3
`9.10.4
`9.11
`9.11.1
`9.11.2
`9.11.3
`9.12
`9.12.1
`9.12.2
`9.12.3
`9.12.4
`9.13
`9.13.1
`9.13.2
`9.13.3
`9.13.4
`9.13.5
`9.13.6
`9.13.7
`9.13.8
`9.13.9
`9.14
`
`Draft Report of 3GPP TSG RAN2#97, Athens. Greece, 13 - 17.02, 2017
`
`Other LTE Rel-14 WIs .................................................................................................................................... 52
`LTE TEI14 enhancements ............................................................................................................................... 52
`
`LTE Rel-15 ............................................................................................................................................. 56
`SI: Further Enhancements to LTE Device to Device, UE to Network Relays for IoT and Wearables ............ 56
`WI: Shortened TTI and processing time for LTE ............................................................................................ 58
`Study on UL data compression in LTE ............................................................................................................ 63
`Study on Enhanced Support for Aerial Vehicles ............................................................................................. 65
`General ....................................................................................................................................................... 65
`Requirements and parameter identification ................................................................................................ 66
`Potential enhancements for UAV interference problem ............................................................................. 66
`Potential enhancements for handover ......................................................................................................... 67
`Identify certification ................................................................................................................................... 67
`Others ......................................................................................................................................................... 69
`Further video enhancements for LTE .............................................................................................................. 69
`General ....................................................................................................................................................... 69
`Local caching for UE assistance video request .......................................................................................... 69
`Enhancement to solve the problem of critical data discard ........................................................................ 69
`Others ......................................................................................................................................................... 70
`QoE Measurement Collection for streaming services in E-UTRAN ............................................................... 70
`General ....................................................................................................................................................... 71
`QoE measurement collection solutions ...................................................................................................... 71
`Others ......................................................................................................................................................... 71
`LTE connectivity to 5G-CN............................................................................................................................. 72
`Organisational ............................................................................................................................................ 72
`Stage 2 aspects ........................................................................................................................................... 72
`Positioning Accuracy Enhancements for LTE ................................................................................................. 77
`Organisational ............................................................................................................................................ 77
`GNSS positioning enhancements ............................................................................................................... 77
`Support for IMU positioning ...................................................................................................................... 80
`UE-based OTDOA positioning .................................................................................................................. 82
`Broadcasting of assistance data .................................................................................................................. 82
`Enhancing CA Utilization ................................................................................................................................ 83
`General ....................................................................................................................................................... 83
`Delay reduction for SCell set-up ................................................................................................................ 83
`Signalling overhead reduction for configuration activation ....................................................................... 84
`Others ......................................................................................................................................................... 85
`Enhancements on LTE-based V2X Services ................................................................................................... 85
`General ....................................................................................................................................................... 85
`Carrier aggregation (up to 8 PC5 carriers) ................................................................................................. 85
`Radio resource pool sharing between UEs using mode 3 and mode 4 ....................................................... 88
`Others ......................................................................................................................................................... 89
`High capacity stationary wireless and 1024 QAM .......................................................................................... 89
`General ....................................................................................................................................................... 89
`UE capability and potential new categories ............................................................................................... 89
`Corresponding higher-layer procedures and signalling .............................................................................. 89
`Enhancements to LTE operation in unlicensed spectrum ................................................................................ 89
`General ....................................................................................................................................................... 89
`Autonomous uplink access on Frame structure type 3 ............................................................................... 90
`Other operation on Frame structure type 3 ................................................................................................. 91
`Others ......................................................................................................................................................... 91
`Further NB-IoT enhancements ........................................................................................................................ 91
`Early Data Transmission ............................................................................................................................ 92
`System Acquisition Enhancements ............................................................................................................ 92
`Relaxed Monitoring for cell reselection ..................................................................................................... 92
`Semi-Persistent Scheduling ........................................................................................................................ 92
`RRC Connection Release Enhancements ................................................................................................... 94
`UE differentiation ....................................................................................................................................... 95
`Small Cell Support ..................................................................................................................................... 96
`TDD ........................................................................................................................................................... 96
`Other........................................................................................................................................................... 97
`Even further enhanced MTC for LTE .............................................................................................................. 98
`
`Page 4 of 235
`
`Ex.1118
`APPLE INC. / Page 4 of 235
`
`

`

`
`
`9.14.1
`9.14.2
`9.14.3
`9.14.4
`9.14.5
`9.14.6
`9.14.7
`9.14.8
`9.14.9
`
`Draft Report of 3GPP TSG RAN2#97, Athens. Greece, 13 - 17.02, 2017
`
`Organisational ............................................................................................................................................ 98
`Early data transmission .............................................................................................................................. 98
`System acquisition time enhancements .................................................................................................... 101
`Relaxed monitoring for cell reselection ................................................................................................... 102
`Access/load control of idle mode UEs ..................................................................................................... 102
`Uplink HARQ-ACK feedback ................................................................................................................. 103
`Increased PDSCH spectral efficiency ...................................................................................................... 103
`Increased PUSCH spectral efficiency ...................................................................................................... 104
`Other......................................................................................................................................................... 104
`
`10 WI: New Radio (NR) Access Technology ........................................................................................... 104
`10.1
`Organisational ................................................................................................................................................ 104
`10.2
`Stage 2 and common UP/CP aspects ............................................................................................................. 109
`10.2.1
`Stage 2 TSs and running CR .................................................................................................................... 109
`10.2.2
`User Plane ................................................................................................................................................ 109
`10.2.2.1
`Bearer type harmonisation .................................................................................................................. 109
`10.2.2.2
`Bearer type change and L2 handling at mobility ................................................................................ 111
`10.2.2.3
`Packet duplication .............................................................................................................................. 113
`10.2.2.4
`Other ................................................................................................................................................... 114
`10.2.3
`MN/SN measurement coordination .......................................................................................................... 116
`10.2.4
`MN/SN procedures ................................................................................................................................... 117
`10.2.5
`NSA operation - other aspects .................................................................................................................. 120
`10.2.6
`UE capabilities ......................................................................................................................................... 124
`10.2.6.1
`NR UE capabilities ............................................................................................................................. 124
`10.2.6.2
`UE categories...................................................................................................................................... 125
`10.2.6.3
`UE capability coordination ................................................................................................................. 127
`10.2.6.4
`Temporary capability restriction ......................................................................................................... 128
`10.2.6.5
`Other ................................................................................................................................................... 129
`10.2.7
`Mobility mechanisms - basic handover .................................................................................................... 130
`10.2.8
`Mobility mechanisms - other .................................................................................................................... 132
`10.2.9
`Mobility - RLM,RLF................................................................................................................................ 134
`10.2.10
`Mobility without RRC involvement ......................................................................................................... 135
`10.2.11
`Mobility - Inter-RAT ................................................................................................................................ 136
`10.2.12
`Slicing ...................................................................................................................................................... 138
`10.2.13
`QoS........................................................................................................................................................... 140
`10.2.14
`Positioning ............................................................................................................................................... 141
`10.2.15
`Other......................................................................................................................................................... 141
`10.3
`Stage 3 user plane .......................................................................................................................................... 144
`10.3.1
`MAC......................................................................................................................................................... 144
`10.3.1.1
`TS ....................................................................................................................................................... 144
`10.3.1.2
`MAC architecture ............................................................................................................................... 144
`10.3.1.3
`MAC PDU format .............................................................................................................................. 145
`10.3.1.4
`Random access ................................................................................................................................... 146
`10.3.1.4.1
`Differentiation of RA parameters.................................................................................................. 146
`10.3.1.4.2
`Random access in presence of multi-beam operation ................................................................... 147
`10.3.1.4.3
`Random access procedures ........................................................................................................... 150
`10.3.1.4.4
`Other aspects related to RA .......................................................................................................... 152
`10.3.1.5
`SR ....................................................................................................................................................... 152
`10.3.1.6
`BSR .................................................................................................................................................... 155
`10.3.1.7
`LCP ..................................................................................................................................................... 157
`10.3.1.8
`SPS/Grant-free .................................................................................................................................... 160
`10.3.1.9
`HARQ ................................................................................................................................................. 162
`10.3.1.10
`DRX.................................................................................................................................................... 163
`10.3.1.11
`Impact of PDCP duplication on MAC ................................................................................................ 165
`10.3.1.12
`PHR .................................................................................................................................................... 167
`10.3.1.13
`Other ................................................................................................................................................... 167
`10.3.2
`RLC .......................................................................................................................................................... 168
`10.3.2.1
`TS ....................................................................................................................................................... 168
`10.3.2.2
`RLC header format ............................................................................................................................. 169
`10.3.2.3
`RLC UM operation ............................................................................................................................. 170
`10.3.2.4
`Impact of PDCP duplication to RLC .................................................................................................. 171
`10.3.2.5
`Other ................................................................................................................................................... 173
`
`Page 5 of 235
`
`Ex.1118
`APPLE INC. / Page 5 of 235
`
`

`

`
`
`Draft Report of 3GPP TSG RAN2#97, Athens. Greece, 13 - 17.02, 2017
`
`10.3.3
`10.3.3.1
`10.3.3.2
`10.3.3.3
`10.3.3.4
`10.3.3.5
`10.3.3.6
`10.3.4
`10.3.4.1
`10.3.4.2
`10.3.4.3
`10.4
`10.4.1
`10.4.1.1
`10.4.1.2
`10.4.1.3
`10.4.1.3.1
`10.4.1.3.2
`10.4.1.3.3
`10.4.1.3.4
`10.4.1.3.5
`10.4.1.4
`10.4.1.4.1
`10.4.1.4.2
`10.4.1.4.3
`10.4.1.4.4
`10.4.1.4.5
`10.4.1.4.6
`10.4.1.4.7
`10.4.1.5
`10.4.1.5.1
`10.4.1.5.2
`10.4.1.5.3
`10.4.1.5.4
`10.4.1.5.5
`10.4.1.5.6
`10.4.1.6
`10.4.1.6.1
`10.4.1.6.2
`10.4.1.6.3
`10.4.1.6.4
`10.4.1.6.5
`10.4.1.7
`10.4.1.8
`10.4.1.9
`10.4.2
`10.4.2.1
`10.4.2.2
`10.4.2.3
`10.4.2.4
`10.4.2.5
`10.4.2.6
`10.4.3
`10.4.3.1
`
`PDCP ........................................................................................................................................................ 174
`TS ....................................................................................................................................................... 174
`PDCP PDU formats ............................................................................................................................ 174
`PDCP receive operation ...................................................................................................................... 175
`UL data split ....................................................................................................................................... 177
`PDCP duplication ............................................................................................................................... 178
`Other ................................................................................................................................................... 179
`QoS layer .................................................................................................................................................. 180
`TS ....................................................................................................................................................... 180
`Header Format .................................................................................................................................... 181
`Other ................................................................................................................................................... 182
`Stage 3 control plane...................................................................................................................................... 185
`RRC .......................................................................................................................................................... 185
`TS ....................................................................................................................................................... 185
`Specification methodology ................................................................................................................. 185
`Connection control procedures ........................................................................................................... 185
`Connection control procedures email ............................................................................................ 186
`Connection control message harmonisation .................................................................................. 188
`Connection reconfiguration........................................................................................................... 188
`Connection control procedures - NSA aspects .............................................................................. 190
`Connection control procedures - other ..........................................................