What is the status of 5G standardiza2on. Sofie Pollin ESAT TELEMIC, KU Leuven

Transcription

1 What is the status of 5G standardiza2on Sofie Pollin ESAT TELEMIC, KU Leuven 1

2 ITU Vision for IMT-2020 and Beyond > 10 Gbps Peak rates > 1M / km 2 Connec?ons < 1 ms Latency 2 [Source: Na?onal Instruments]

3 New ITU Report on IMT-2020 Minimum Requirements Metric Requirement Comments Peak Data Rate Peak Spectral Efficiency User Experienced Data Rate DL: 20 Gbps UL: 10 Gbps DL: 30 bps/hz (assuming 8 streams) UL: 15 bps/hz (assuming 4 streams) DL: 100 Mbps UL: 50 Mbps Area Traffic Capacity Indoor hotspot DL: 10 Mbps/m 2 embb Single embb mobile in ideal scenarios assuming all resources u?lized Single embb mobile in ideal scenarios assuming all resources u?lized 5% CDF of the embb user throughput User plane latency embb: 4ms URLLC: 1ms Single user for small IP packets, for both DL and UL (embb and URLLC) Control plane latency 20ms (encouraged to consider 10ms) Transi?on from Idle to Ac?ve (embb and URLLC) Connec?on Density 1M devices per km 2 For mmtc Reliability % success prob. 32 L2 bytes within 1ms at cell edge Bandwidth >100 MHz; up to 1 GHz in > 6 GHz Carrier aggrega?on allowed 3 [Source: Na?onal Instruments] DRAFT NEW REPORT ITU-R M.[IMT-2020.TECH PERF REQ], Minimum requirements related to technical performance for IMT-2020 radio interface(s), Document 5/40-E, 22 February 2017

4 Denser networks to boost capacity Coverage Era Macro topology [+] Capacity Era HetNet topology [*] 5G Era Cell-free topology 200 users/cell 10 users/cell 10 antennas/user Planning Stochas?c Geometry Learning [+ Cooper s Law: capacity improvements due to densifica?on] [* WILL DENSIFICATION BE THE DEATH OF 5G?,IEEE ComSoc Technology News, May 5 th 2015 ]

5 The Death of 5G? WILL DENSIFICATION BE THE DEATH OF 5G? 5 5 IEEE ComSoc Technology News, May 5 th 2015

6 28 Ghz & 60 GHz 5G technology X 4 6

7 Beamforming! Large array => high direc?vity. Beamforming with tracking needed! Distance 2.4 GHz Distance 9.6 GHz 7 [Courtesy: C. Gustafson, Lund University]

8 Massive MIMO 8 [Lund] [KU Leuven] [Facebook]

9 Latency: mobile edge cloud 9 [hrps://

10 Internet of skills 10 [hrps://

11 Transla2ng requirements into standards 11 Figure from 3gpp.org

12 How will 5G be standardized? 12 [Source: Qualcomm]

13 Early Non Standard 5G Releases Some operators and vendors have kicked off pre specifica?on 5G efforts These will be deployed significantly before New Radio Phase 1, as soon as end of 2017 Verizon 5GTF KT PyeongChang 5G Target applica?on is a narrow subset of NR target applica?ons è Fixed Wireless Access No support for mobility UEs are Consumer Premise Equipment (set-top box) Last mile connec?vity to replace fiber 13 [Source: Na?onal Instruments] Figure from Samsung Whitepaper on Fixed Wireless Access

14 5G Trial Deployments Have Started 14 [Source: Na?onal Instruments]

15 5G NR accelera?on based on NSA architecture 15 Ensuring commonality with Standalone 5G NR, plus forward compa?bility NSA opera?on requires aggrega?on of LTE-band and NR-band via Dual Connec?vity [Source: Qualcomm]

16 Poten2al deployment phasing EPC NextGen Core NextGen Core CP + UP UP CP + UP UP 16 LTE enb CP + UP NR gnb 1) Data flow aggregation across LTE enb and NR gnb via EPC elte enb 1) elte enb connected to NextGen Core elte enb CP + UP NR gnb 2) Data flow aggregation across elte enb and NR gnb via NextGen Core

17 Poten2al deployment phasing NextGen Core NextGen Core NextGen Core CP + UP UP CP + UP UP NR gnb 1) NR gnb connected to NextGen Core NR gnb CP + UP elte enb 2) Data flow aggregation across NR gnb and elte enb via NextGen Core NR gnb CP + UP NR gnb 3) Data flow aggregation across NR gnbs via NextGen Core 17

18 From LTE to 5G NR Phase 1 Frequency of Opera?on Carrier Bandwidth LTE Up to 6 GHz Max: 20 MHz Carrier Aggrega?on Up to 32 Up to 16 Analog Beamforming (dynamic) Not supported Supported NR Up to 6 GHz, ~28 GHz, ~39 GHz, other mmwave bands (Upto 52 GHz) Max: 100 MHz (@ <6 GHz) Max: 1 GHz (@ >6 GHz) Digital Beamforming Up to 8 Layers Up to 12 Layers Channel Coding Data: Turbo Coding Control: Convolu?onal Coding Data: LDPC Coding Control: Polar Coding Subcarrier Spacing 15 khz 15, 30, 60, 120, 240 khz Self Contained Subframe Not Supported Can be implemented Spectrum Occupancy 90% of Channel BW Up to 98% of Channel BW 18 [Source: Na?onal Instruments]

19 Some terminology LTE enb Capable of connec?ng to EPC (current LTE core network) elte enb Evolu?on of LTE enb capable of connec?vity to EPC and NextGen core gnb Equivalent of enb in 5G NR 19 NG The interface between NextGen core and gnb NG2: control plane interface between core network and RAN (S1-C in LTE) NG3: user plane interface between core network and RAN (S1-U in LTE)

20 New Frequency Ranges for NR Release 15 Frequency range Suppor2ng companies (min. 3) NTT DOCOMO, KDDI, SBM, CMCC, China Unicom, China GHz Telecom, KT, SK Telecom, LG Uplus, E?salat, Orange, GHz NTT DOCOMO, KDDI, SBM, CMCC, China Unicom, China Telecom, GHz NTT DOCOMO, CMCC, KT, Verizon, T-mobile, Telecom Italia, BT GHz Orange, Telecom Italia, Bri?sh Telecom GHz AT&T, Verizon, T-mobile 20 [Source: Na?onal Instruments]

21 Release 15 LTE-NR Band Combina2ons For dual connec?vity Non-stand-alone (NSA) opera?on. 21 NR Freq. Range NR band LTE band GHz YES YES YES YES YES YES YES YES YES YES YES YES GHz YES YES YES YES YES YES YES YES YES YES GHz YES YES YES YES YES YES YES YES YES YES YES YES YES GHz YES YES YES YES 37-40GHz YES Band 7 YES YES YES Band 28 YES YES YES Band 41 YES YES YES YES Sources: RP , RP , R (DCM) YES YES YES

22 Feasible Maximum Channel BW To be studied further Sub-6 GHz: MHz range Above 6 GHz: 100 MHz 1 GHz range Possibility to support maximum CBW with CA Use CA to u?lize spectrum larger than maximum CBW Note: RAN1 agreed on maximum CBW of 400 MHz in Rel-15 R4-170xxx 2GHz 2.5GHz 3.5GHz 6GHz 24GHz 43.5GHz52.3GHz Qualcomm 100M 400M 20M 50M Nokia 100M 200M 400M Samsung 200M 1G MediaTek 200M 1G Intel 100M 400M Source: R (Docomo, Samsung) 22 [Source: Na?onal Instruments]

23 Phase 2: Integrated Access and Backhaul Study support for wireless backhaul and relay links Enable flexible and very dense deployment of NR cells Avoid densifying the transport network propor?onately Both inband and outband relaying in indoor and outdoor scenarios 23 [Source: Na?onal Instruments]

24 Phase 2: V2X Use Cases for LTE and NR New evalua?on methodology to be defined for the new V2X use cases Vehicles Platooning Extended Sensors Advanced Driving (enables semi-automated or full-automated driving) Remote Driving Iden?fy regulatory requirements of direct communica?ons between vehicles in spectrum beyond 6GHz in different regions 63-64GHz (allocated for ITS in Europe) 76-81GHz Figure from Qualcomm website 24 [Source: Na?onal Instruments]

25 Conclusions 5G represents disrup2ve performance targets: 20 Gbps peak throughput Low latency To achieve this, disrup?ve technology is needed and being standardised: mmwave massive MIMO mobile edge cloud network slicing Key ques?on: cost/benefit 25

26 26 Thanks!