[PDF] [PDF] Understanding the 5G NR Physical Layer - Keysight

[PDF] 5G networks and 3GPP Release 15 - ITU

25 oct 2019 · Fully distributed network architecture with single level of hierarchy innovative features of 5G network can be summarized as diversified RAN

[PDF] Understanding LTE - ShareTechnote

connect to the wireless radio access network (LTE), and the 'S3' interface to The E-UTRAN architecture shall be packet based, although provision should be 

[PDF] 5G - TU Ilmenau

Architecture and protocols 5G Architecture: Next Generation-RAN and 5G Core Source: http://www sharetechnote com/html/5G/5G_FrameStructure html

[PDF] TS 138 473 - V1530 - 5G; NG-RAN; F1 Application Protocol (F1AP

NG-RAN; F1 Application Protocol (F1AP) (3GPP TS 38 473 version 15 3 0 Release 15) 3GPP TS 38 401: "NG-RAN; Architecture Description" [5]

[PDF] New Transport Network Architectures for 5G RAN - Fujitsu

This white paper investigates this new transport architecture and the role that packet-based connectivity fabrics play in the performance of the 5G RAN itself and on 

[PDF] Long Term Evolution Protocol Overview - NXP Semiconductors

The E-UTRAN is the entire network, which is the “official” standards name for LTE Figure 2 1 LTE Architecture Overview UE 2 1 How the MAC Sees the PHY

[PDF] Understanding the 5G NR Physical Layer - Keysight

RAN # 80 (Rel-15 completion) NR Study Item NR Work Item Further Evolution NR NSA Completion NR SA Completion 3GPP Release 15 Roadmap 

[PDF] Dual Connectivity for LTE-NR Cellular Networks

deployments, a new network architecture has been proposed In this architecture, there is a sal Terrestrial Radio Access Network (E-UTRAN) and also

[PDF] 3GPP TS 36523-3

13 jan 2018 · Technical Specification Group Radio Access Network; Evolved Universal Terrestrial E-UTRAN/SAE system architecture and test models

[PDF] Vol17 No2 All pages - NTT DOCOMO Technical Journal

2 oct 2015 · Radio Equipment and Antennas for Advanced C-RAN Architecture ○ Router- type Mobile Terminals for LTE-Advanced Category 6

[PDF] 5g requirements

[PDF] 5g research paper

[PDF] 5g research papers

[PDF] 5g rf for dummies pdf download

[PDF] 5g roll out in africa

[PDF] 5g rollout italy map

[PDF] 5g sa architecture

[PDF] 5g safe study

[PDF] 5g same frequency as oxygen

[PDF] 5g seid

[PDF] 5g seminar report pdf

[PDF] 5g sickness symptoms

[PDF] 5g slideshare 2019

[PDF] 5g south korea health

[PDF] 5g specifications pdf

© Keysight Technologies 2017

Understanding the 5G NR Physical Layer

Javier Campos

NR Physical Layer Architect

RAN1 Delegate

November 1st, 2017

Page

© Keysight Technologies 2017

3GPP NR roadmap and releases

Key differences between the physical layers of LTE and NR

Key new technologies in NR physical layer

Overview of the NR physical channels

Most important new NR physical layer procedures

Initial access and beamforming

Beam management

MIMO

Bandwidth Parts

Understanding the 5G NR Physical

Layer

Understanding the 5G NR Physical Layer

2 Page

© Keysight Technologies 2017

NR Key Technologies

Millimeter Wave

Beam-Sweeping

Beam Management

Massive MIMO

Understanding the 5G NR Physical

Layer

Understanding the 5G NR Physical Layer

3

Low Latency

Mini-Slots

CBG Retransmissions

Front-Loaded DMRS

Future Proof Forward Compatible

Bandwidth Parts

Reduced Always-On Signals

No Fixed Time Relationship Between Channels

Waveforms and Frame Structure

Scalable Numerology

Numerology Multiplexing

Dynamic TDD

Page

© Keysight Technologies 2017

Contents

3GPP NR Introduction & Roadmap

Waveform, Numerology and Frame Structure

Initial Access and Beam Management

Downlink and Uplink Channels

Bandwidth Parts

Summary

Understanding the 5G NR Physical

Layer

Understanding the 5G NR Physical Layer

4 Page

© Keysight Technologies 2017

Contents

3GPP NR Introduction & Roadmap

Waveform, Numerology and Frame Structure

Initial Access and Beam Management

Downlink and Uplink Channels

Bandwidth Parts

Summary

Understanding the 5G NR Physical

Layer5

Page

© Keysight Technologies 2017

3GPP NR Use Cases

3GPP NR Roadmap & Introduction

Enhanced Mobile Broadband (

eMBB )10-20 Gbpspeak

100 Mbps whenever

needed

10000x more traffic

Macro and small

cells

Support for high

mobility (500 km/h)

Network energy

saving by 100 times

Massive Machine

Communication (

mMTC )High density of devices (2x105-

106/km2)

Long range

Low data rate (1 -

100 kbps)

M2M ultra low cost

10 years battery

Asynchronous

access

Ultra Reliability and Low

Latency (URLLC)

Ultra responsive

<1 msair interface latency

5 msE2E latency

Ultra reliable and

available (99.9999%)

Low to medium data

rates (50 kbps -10 Mbps)

High speed mobility

Understanding the 5G NR Physical

Layer6

Page

© Keysight Technologies 2017

3GPP NR Roadmap

3GPP NR Roadmap & Introduction

2015201620172018201920202021

3GPP Rel. 17

& beyond 3GPP

Rel. 15

WI: 5G new RAT

(Phase 1) 3GPP

Rel. 16

WI: 5G new RAT

(Phase 2)

Understanding the 5G NR Physical

Layer7

3GPP

Rel. 14

SI: Scenarios and

Requirements

SI: Channel Model

SI: 5G new RAT

First 3GPP NR spec

available

Early drop NR spec

(acceleration plan) Page

© Keysight Technologies 2017

3GPP NR Rel-15 Scope

Acceleration of eMBB Non-Standalone modeby

Standalone standardization dates as expected

Use cases:

Enhanced Mobile Broadband (eMBB)

Ultra Reliable Low Latency Communications

(URLLC)

Carrier aggregation operation

Inter-RAT mobility between NR and E-UTRA

3GPP NR Roadmap & Introduction

Understanding the 5G NR Physical

Layer8

Frequencies beyond 52.6 GHz

Other types of waveforms

mMTCMachine type communications

Internetworking with non-3GPP systems (e.g. WiFi)

Vehicular communications

Multicast services and multimedia broadcast

Unlicensed spectrum access

IN SCOPEOUT OF SCOPE

Page

© Keysight Technologies 2017

NR Non-Stand Alone Mode

Specified by

Using LTE core network

LTE eNBalways acts as a master

NR gNB always acts as a slave

Understanding the 5G NR Physical

Layer

3GPP NR Roadmap & Introduction

9 EPC CP+UP CP UP UP

LTE eNBNR gNB

Page

© Keysight Technologies 2017

3GPP NR Rel-15 Roadmap

Understanding the 5G NR Physical

Layer

3GPP NR Roadmap & Introduction

10

Q4Q1Q2Q3Q4Q1Q2Q3Q4

201620172018

RAN #74 RAN #75 RAN #78 RAN #80 (Rel-15 completion)

NR Study Item

NR Work ItemFurther Evolution

NR NSA

Completion

NR SA

Completion

3GPP Release 15 Roadmap

Page

© Keysight Technologies 2017

3GPP RAN1 Rel-15 Roadmap

Understanding the 5G NR Physical

Layer

3GPP NR Roadmap & Introduction

11

Rel-16 Work Items

Rel-16 Study Items

UR Part of URLLC

Q1Q2Q3Q4Q1Q2Q3Q4

20172018

Rel-15Rel-16

Complete PHY common

for NSA and SA

Channel Coding/Modulation

Sync/System Info. Broadcasting/Paging

Random Access Channel/Procedure

RRM Measurement

L1/L2 Data/Control Channels

Scheduling HARQ Procedures

MIMO Tx Schemes

Beam Management and CSI

RS Design and QCL

NR-NR CA

Remaining Issues

Page

© Keysight Technologies 2017

Feature Down-Scoping

In the latest RAN #77 plenary meeting it was agreed to down-scope some of NR features for the release This is the complete list of dropped functionality:

Duplexing

-FDD half duplex MIMO -RS design for mini- -Multi-TRP/panel/beam transmission/reception at gNB for PDSCH/PUSCH

Scheduling

-Mini- -Multi-TRP/panel/beam PDCCH -Transmit diversity for PUCCH (postponed to Release-16) -Simultaneous transmission of PUSCH and PUCCH

NR CA/DC

-NR-NR DC

Understanding the 5G NR Physical

Layer

3GPP NR Roadmap & Introduction

12 Page

© Keysight Technologies 2017

NR L1 Specification Drafts

Spec

NumberTitleCurrent Draft

38.201General DescriptionR1-1715069

38.202Services Provided bythe Physical LayerR1-1714655

38.211Physical Channels and ModulationR1-1718318

38.212Multiplexing and Channel CodingR1-1719106

38.213PhysicalLayer Procedures for ControlR1-1718782

38.214PhysicalLayer Procedures for DataR1-1718808

38.215PhysicalLayer MeasurementsR1-1719108

Understanding the 5G NR Physical

Layer

3GPP NR Roadmap & Introduction

13 Page

© Keysight Technologies 2017

Study Items for Rel-16

Study items starting in 2018:

NR-based access to unlicensed spectrum

Non-orthogonal multiple access for NR

Evaluation methodology of new V2X use cases for LTE and NR

NR to support non-terrestrial networks

Integrated access and backhaul for NR

3GPP NR Roadmap & Introduction

Understanding the 5G NR Physical

Layer14

Page

© Keysight Technologies 2017

Contents

3GPP NR Introduction & Roadmap

Waveform, Numerology and Frame Structure

Initial Access and Beam Management

Downlink and Uplink Channels

Bandwidth Parts

Summary

Understanding the 5G NR Physical

Layer15

Page

© Keysight Technologies 2017

Scalable numerology

Implications to slot duration

Implications to multiplexing of numerologies

Inter-subcarrier spacing interference

Slot based vs. non-slot based scheduling

Use cases for non-slot (i.e. mini-slot) based scheduling

Dynamic TDD

How to indicate link direction?

Understanding the 5G NR Physical

Layer

Waveform, Numerology and Frame Structure

16 Page

© Keysight Technologies 2017

Waveform

Waveform(for eMBB/URLLC and < 52.6 GHz)

DL Waveform: CP-OFDM

UL Waveform: CP-OFDM + DFT-s-OFDM

-CP-OFDM targeted at high throughput scenarios -DFT-s-OFDM targeted at power limited scenarios

Multiple Access

Orthogonal Multiple Access

Non-Orthogonal Multiple Access (NOMA) not supported in Rel-15

Bandwidth

Maximum CC bandwidth is 400 MHz

Maximum number of subcarriers is 3300

-4096-FFT is needed

Maximum number of CCs is 16

Understanding the 5G NR Physical

Layer

Waveform, Numerology and Frame Structure

17

This is from signaling point of view

Allowed combinations to be decided by RAN4

Page

© Keysight Technologies 2017

Numerology Definition

Understanding the 5G NR Physical

Layer

Waveform, Numerology and Frame Structure

18

µǻf = 2µ·15 kHzCyclic Prefix

015 kHzNormal

130 kHzNormal

260 kHzNormal, Extended

3120 kHzNormal

4240 kHzNormal

5480 kHzNormal

Data < 6 GHz

Data > 6 GHz

Sync < 6 GHz Sync > 6 GHzSpecified but not supported in Rel-15

Scalable subcarrier spacing

Parameters defining a numerology:

Subcarrier spacing (i.e. µ parameter)

Cyclic prefix (i.e. Normal/Extended)

Page

© Keysight Technologies 2017

Numerology Example (Normal CP)

Each symbol length (including CP) of 15 kHz equals the sum of the corresponding 2µsymbols at Fs Other than the first OFMD symbol in every 0.5 ms, all symbols within 0.5 mshave the same length

Understanding the 5G NR Physical

Layer19

OFDM Symbol 6

56743210

5 3 5 4 5 5 5 2 5 1 5 0 4 9 4 8

OFDM Symbol 0

01234567

15 kHz

60 kHz

4096416288

24252627

0123

0.5 msec

56743210

1 3 1 4 1 5 1 2 1 1 1 0 98

120 kHz

4096544288

1023121310

30 kHz

2884096

2884096320

352

OFDM Symbol 1OFDM Symbol 0

Page

© Keysight Technologies 2017

Mixed Numerology

Multiplexing different numerologies

TDM and/or FDM for downlink and uplink

Rel-15 NR UEs are not mandated to support simultaneous DL reception or UL transmission of multiple FDM physical channels (e.g. PDSCH, PDCCH, PUSCH, PUCCH) with different numerologies at the same time

Two FDM use cases

Use Case #1:Data/Data

-Not supported in DL (for Rel-15) -Not supported in UL (for Rel-15) -Supported between DL and UL (i.e. different numerologies in DL and UL)

Use Case #2:Data/Synchronization

-Optional from UE point of view

Understanding the 5G NR Physical

Layer

Waveform, Numerology and Frame Structure

20 Page

© Keysight Technologies 2017

Frame Structure

Understanding the 5G NR Physical

Layer

Waveform, Numerology and Frame Structure

21

Frame: 10 ms

Subframe: Reference period of 1 ms

Slot(slot based scheduling)

14 OFDM symbols

One possible scheduling unit

-Slot aggregation allowed

Slot length scales with the subcarrier spacing

Mini-Slot(non-slot based scheduling)

7, 4 or 2 OFDM symbols

Minimum scheduling unit

120
kHz SLOT

14 sym

250 µs

60
kHz SLOT

14 symbols

500 µs

30
kHz SLOT

14 symbols

1 ms 15 kHz 1 ms

SUBFRAME

SLOT 14 squotesdbs_dbs20.pdfusesText_26