5G overview

25 MAY 2020

Enrico Buracchini

TIM INNOVATION DEPT.

Up to now….we are here….

Source : Qualcomm presentation @ 5G Tokyo Bay Summit (july 2015)

3

M.2083-02

Gigabytes in a second

Smart home/building

Voice

Smart city

3D video, UHD screens

Work and play in the cloud

Augmented reality

Industry automation

Mission critical application

Self driving car

Massive machine type

communications

Ultra-reliable and low latency

communications

Enhanced mobile broadband

Future IMT

«IMT vision»: Usage Scenarios of IMT for 2020 and beyond

[Source: Racc. ITU-R M.2083, “IMT Vision”]

4

5G in a nutshell

5

«IMT2020» Vision Capabilities (ITU R 5D VISION)

.

6

Mapping KPIs to Usage Scenarios

enhanced Mobile

Broadband (eMBB)

Massive Machine Type

Communication (mMTC)

5G overviewTIM

Ultra Reliable and Low

Latency (URLLC)

7

5G features will be phased as it will be not possibleto standardize all in time for Rel-15 completionand early deployments (2018-2020)

• Release 15 (aka phase 1, by June ‘18) will aim at a first phase of

expected deployments in 2020 (Japan Olympic Games)

• Release 16 (aka phase 2, by Dec ’19) will target the ITU IMT-

2020 submission

• Additional “Early drop” milestone (Dec ‘17-March ’18) added

to intercept market needs in Korea (2018 Winter Game) and USA

(Verizon trials)

• NR (New Radio) non-standalone hotspots/small cells where (e)LTE provides mainly control plane (dot lines) & wide area coverage, while NR boosts user plane by high bit rate connections

Non standalone «LTE Assisted», EPC Connected

Early Drop Rel15 –NSA (Non Stand Alone)

3GPP Roadmap

SA - Stand Alone

8

5G: Enabers

Active Antennas e Massive MIMO

Slicing

New Radio

C/V- RAN

New CORE architecture

9

5G & BEAMFORMING

FWA use case

10

Design criteria of NR

T.I.MF.WSA

NR have to support a wide range of scenarios and use cases, many of which are not

yet defined (future proof design needed)

Some general design rules have been outlined, exploiting also the lessons learnt during

the 4G operation:

▪ Maximizing the amount of time and frequency resources that can be flexibly utilized or that can

be left blanked without causing backward compatibility issues in the future (blank resources

can be used for future use)

▪ Minimizing transmission of always-on signals (e.g. CRS in LTE)

▪ Avoid wideband channels/signals (e.g. PDCCH channel in LTE)

▪ Avoid implicit/fixed timing relations (e.g. HARQ procedure in LTE)

▪ Confining signals and channels for physical layer functionalities (signals, channels, signaling)

within a configurable/allocable time/frequency resource

11

NR main design features overview

12

NR R15 L1 main parameters vs LTE

Source: NOKIA- ATIS 3GPP SEMINAR

13

R15 numerology & frame structure relationship

Source: NOKIA- ATIS 3GPP SEMINAR

14

Scalable OFDM numerology

T.I.MF.WSA

LTE supports carrier bandwidths up to 20 MHz with a fixed OFDM numerology

5G NR introduces scalable OFDM numerology to support diverse spectrum bands/types

and deployment models. For example, 5G NR must be able to operate in mmWave

bands that have wider channel widths (e.g. up to 400 MHz)

Source: “Making 5G NR a reality”. Qualcomm white paper,