leading the path towards 5g with lte advanced pro - … the path towards 5g with lte advanced pro...

Leading the path towards 5G with LTE Advanced Pro

Sanjeev Athalye, Sr. DirectorQualcomm Technologies, Inc.May 2016

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Progress LTE capabilities towards 5GIn parallel driving 4G and 5G to their fullest potential

Note: Estimated commercial dates. Not all features commercialized at the same time

LTE Advanced ProLTE Advanced

2015 2020+

Rel-10/11/12

Carrier aggregation

Low LatencyDual connectivitySON+

Massive/FD-MIMO

CoMP Device-to-device

Unlicensed spectrum

Enhanced CA

Shared Broadcast

Internet of Things256QAM

V2X

FeICIC

Advanced MIMO

FDD-TDD CA

eLAA

5G

3

5G

LTE Advanced ProLTE AdvancedRel-10/11/12

2015 2020+

Progress LTE capabilities towards 5GIn parallel driving 4G and 5G to their fullest potential

Note: Estimated commercial dates. Not all features commercialized at the same time

• Unified, more capable platform for spectrum bands below/above 6 GHz

• For new spectrum available beyond 2020, including legacy re-farming

• Fully leverage 4G investments for a phased 5G rollout

• Significantly improve cost and energy efficiency

• Further backwards-compatible enhancements

• For spectrum opportunities available before 2020

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Connect the Internet of Things

New ways to connect and interact New classes

of services

High Performance

Low power/complexity

Digital TV broadcasting

Proximal awareness

Public safety

Evolving LTE-Direct

LTE V2X Communications

Latency-critical control

Proliferate LTE to new use cases

LTE IoT

Extending the value of LTE technology and ecosystem

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Extending LTE to unlicensed spectrum globally with LAA

1 Assumptions: 3GPP LAA evaluation model based on TR 36.889, two operators, 4 small-cells per operator per macro cell, outdoor, 40 users on same 20 MHz channel in 5 GHz, both uplink and downlink in 5 GHz, 3GPP Bursty traffic model 3

with 1MB file, LWA using 802.11ac, DL 2x2 MIMO (no MU-MIMO), 24dBm + 3dBi Tx power in 5 GHz for LAA eNB or Wi-Fi AP.

• Path to Gbps speedsAggregates licensed and unlicensed spectrum

• 2x capacity and rangeOver Wi-Fi capacity in dense deployments1

• Seamless and robust user experienceWith reliable licensed spectrum anchor

• Single unified LTE networkCommon management

• Fair Wi-Fi coexistence Fundamental design principle

Unlicensed (5 GHz)

Licensed Anchor

(400 MHz – 3.8 GHz)

LTE &(e)LAA

Carrieraggregation

Licensed Assisted Access (LAA) with Listen Before Talk (LBT)

LTE Unlicensed small cell

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Scaling to connect the Internet of ThingsScaling up in performance and mobility

Scaling down in complexity and power

Wearables

Energy Management

Environment monitoring

Smart buildings

Object Tracking

City infrastructure

Utility metering

Connected healthcare

Video security

Connected car

Mobile

Significantly widening the range of enterprise and consumer use cases

LTE Advanced (Today+) LTE IoT (Release 13+)

LTE Advanced>10 Mbps

n x 20 MHz

LTE Cat-1Up to 10 Mbps

20 MHz

eMTC (Cat-M1)Up to 1 Mbps

1.4 MHz narrowband

NB-IOT (Cat-M2)10s of kbps to 100s of kbps

180 kHz narrowband

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Our 5G vision: a unifying connectivity fabric

Higher reliability services

Enhancedmobile broadband

Massive Internetof Things

NetworkingMobile devices RoboticsAutomotive Health Smart cities Smart homesWearables

Unified design for all spectrum types and bands from below 1GHz to mmWave

• Lower latency

• Higher reliability

• Higher availability

• Stronger security

• Multi-Gbps data rates

• Highwe capacity

• Uniformity

• Deep awareness

• Lower cost

• Lower energy

• Deeper coverage

• Higher density

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Scalable across a broad variation of requirements

Wide area Internet of Things

Higher-reliability control

Enhanced mobile broadband

Deeper coverageTo reach challenging locations

Lower energy10+ years of battery life

Lower complexity10s of bits per second

Higher density1 million nodes per sq. km

Enhanced capacity10 Tbps per sq. km

Enhanced data ratesMulti-Gigabits per second

Better awarenessDiscovery and optimization

Frequent user mobilityOr no mobility at all

Stronger securityUsed in health/government/

financial applications

Lower latencyAs low as 1 millisecond

Higher reliability> 99.999% packet success rate

This presentation addresses potential use cases and potential characteristics of 5G technology. These slides are not intended to reflect a commitment to the characteristics or commercialization of any product or service of Qualcomm Technologies, Inc. or its affiliates

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Diverse spectrum types and bandsFrom narrowband to ultra-wideband, TDD & FDD

Licensed SpectrumCleared spectrumEXCLUSIVE USE

Unlicensed SpectrumMultiple technologies

SHARED USE

Shared Licensed SpectrumComplementary licensing

SHARED EXCLUSIVE USE

Below 1 GHz: longer range, massive number of things

Below 6 GHz: mobile broadband, higher reliability services

Above 6 GHz including mmWave: for both access and backhaul, shorter range

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A new 5G unified air interface is the foundation

FDD, TDD, half duplex

Licensed, shared licensed, and unlicensed spectrum

Spectrum bands below 1 GHz, 1 GHz to 6 GHz, & above 6 GHz

(incl. mmWave)

Device-to-device, mesh, relay network topologies

From wideband multi-Gbps to narrowband 10s of bits per second

Efficient multiplexing of higher-reliability and nominal traffic

From high user mobility to no mobility at all

From wide area macro to indoor / outdoor hotspots

Diverse spectrum Diverse services and devices

Diverse deployments

Unified air interface5G

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Optimized waveforms and multiple accessWith heavy reliance on the OFDM family adapted to new extremes

OFDM family the right choice formobile broadband and beyondScalable waveform with lower complexity receivers

More efficient framework for MIMO spatial multiplexing – higher spectral efficiency

Allows enhancements such as windowing/filtering for enhanced localization

SC-OFDM well suited for uplink transmissions in macro deployments

Resource Spread Multiple Access (RSMA) for target use casesEnable asynchronous, non-orthogonal, contention-based access that is well suited for sporadic uplink transmissions of small data bursts (e.g. IoT)

Time

Frequency

Frequency

Time

12

Support diverse spectrum bands and bandwidthScalable bandwidth with 2K subcarrier spacing

Sub-carrier spacing = B(extended cyclic prefix)

Outdoor andmacro coverage

FDD/TDD <3 GHz

Indoorwideband

TDD e.g. 5 GHz (Unlicensed) 160MHz bandwidth

Sub-carrier spacing = 8B

mmWaveTDD e.g. 28 GHz

Sub-carrier spacing = 2B(normal cyclic prefix)

Outdoor andsmall cell

TDD > 3 GHz80MHz

500MHz bandwidth

Sub-carrier spacing = 16B

20MHz

• Efficiently address range of available bandwidths, from < 1GHz to >6GHz

• Maximum FFT size, e.g., 4096, leveraged across bands and bandwidths

• Natural scaling of CP with subcarrier spacing

• Address coherence bandwidth and delay spread for different bands & deployments

• Improve processing timeline by front load control/pilot with small symbol granularity for fast HARQ turn-around

Example usage models and channel bandwidths

13

Support diverse latency and QoS requirementsScalable TTI and numerology

TTI

Longer TTI for higher spectral efficiency

Shorter TTI for lower latency

• 2N TTI per 1 ms

- Combination with 2K scalable subcarrier spacing allows nesting of smaller TTI numerologies into larger ones with guaranteed periodic overlap of control

- Other TTI durations via bundling is possible

• Symbol duration = 2-M ms

- Allows finest possible granularity with TTIs scaling down to single symbol

- Benefits low-latency in larger delay spread environments

- Numerology multiplexing further simplified due to alignment every 2M symbols

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A more flexible framework with forward compatibilityDesigned to multiplex envisioned & unforeseen 5G services on the same frequency

Integrated frameworkThat can support diverse deployment

scenarios and network topologies

Scalable transmission time interval (TTI)For diverse latency requirements — capable of

latencies an order of magnitude lower than LTE

Higher-reliability transmissionsMay occur at any time; design such that

other traffic can sustain puncturing1

Forward compatibilityWith support for blank subframes and frequency

resources for future services / features

1 Nominal 5G access to be designed such that it is capable to sustain puncturing from higher-reliability transmission or bursty interference

Blank subcarriers

Scalable TTI WANBlank subframes

D2D

Multicast

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Natively incorporate advanced wireless technologiesMany technology enablers to meet 5G requirements and services

Massive MIMO

Coordinated Spatial Techniques

Advanced Receivers

Beamforming

Integrated access and backhaul

mmWave

Across diverse spectrum bands and

types

Multicast

V2X

Full Self-Configuration

Hyper dense deployments

Multi-hop & D2D communications

Low latency & more-reliable communication

More energy efficient, lower cost IoT communications

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Massive MIMO at 4 GHz allows reuse of existing sitesLeverage higher spectrum band using same sites and same transmit power

Macro site1.7 km inter-site distance46 dBm transmit power

Source: Qualcomm Technologies, Inc. simulations; Macro-cell with 1.7km inter-site distance, 10 users per cell, 46 dBm Tx power at base station, 20MHz@2GHz and 80MHz@4GHz BW TDD, 2.4x Massive MIMO

Significant Capacity GainAverage Cell Throughput = 808 Mbps in 80 MHz

Throughput (Mbps)

3.4x 4.1x

3.9x2.7x

1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

10-1 100 101 102 103

CD

F

2x4 MIMO, 20 MHz @ 2 GHz2x4 MIMO, 80 MHz @ 4 GHz

24x4 MIMO, 80 MHz @ 4 GHz10 Users per Cell

Significant Gain in Cell Edge User Throughput

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Realizing the mmWave opportunity for mobile broadband

Smart beamforming & beam tracking

Increase coverage and minimize interference

Solutions

mmWave

sub6Ghz

Tighter interworking with sub 6 GHz

Increase robustness and faster system acquisition

Phase noise mitigation in RF components

lower cost, lower power devices

The enhanced mobile broadband opportunity The challenge—‘mobilizing’ mmWave • Large bandwidths, e.g. 100s of MHz

• Multi-Gbps data rates

• Flex deployments (integrated access/backhaul)

• Higher capacity with dense spatial reuse

• Robustness results from high path loss and susceptibility to blockage

• Device cost/power and RF challenges at mmWave frequencies

5G

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Making mmWave a reality for mobileQualcomm Technologies, Inc. is setting the path to 5G mmWave

Qualcomm VIVE is a product of Qualcomm Atheros, Inc.;

^ Based on Qualcomm Technologies Inc. simulations

Qualcomm® VIVE™ 802.11ad technology with a 32-antenna array element

60 GHz chipset commercial today for mobile devices

Developing robust 5G mmWavefor enhanced mobile broadband

0.705 inch

0.28 inch

28 GHz outdoor example with ~150m dense urban LOS and NLOS coverage using directional beamforming^

Manhattan 3D mapResults from ray-tracing^

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5G standardization for 2020 launch

2016 20212017 2019 2020 20222015 2018

R15 5G WI’s

5G study items

LTE evolution in parallel with 5G

5G phase 2launch

R16 5G WI’s

3GPP RAN workshop

Note: Estimated commercial dates; 1 Forward compatibility with R16 and beyond

R17+5G evolution

5G phase 1launch1

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Multi-connectivity across bands & technologies4G+5G multi-connectivity improves coverage and mobility

Rural area

+5G4G

Sub-urban area

Smallcell

Simultaneous connectivityacross 5G, 4G and Wi-Fi

Urban area

4G & 5G macro coverage

Leverage 4G investments to enable phased 5G rollout

+5G4G

4G & 5Gsmall cell coverage

5G carrier aggregation with integrated MAC across

sub-6GHz & above 6GHz

multimode device

Macro

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Designing a unified platform for the next decade & beyond

The 5G Unified Air Interface is the foundationOptimized OFDM-based waveforms under a flexible framework that can scale to support diverse requirements

Diverse spectrum

Diverse services & devices

Diverse deployments

Also, leveraging a multi-connectivity framework that makes full use of

4G LTE and Wi-Fi investments

And delivering a flexible network architecture for dynamic creation of tailored services

5G

5G

Thank you

Follow us on:For more information, visit us at: www.qualcomm.com & www.qualcomm.com/blog

Nothing in these materials is an offer to sell any of the components or devices referenced herein.

©2013-2016 Qualcomm Technologies, Inc. and/or its affiliated companies. All Rights Reserved.

Qualcomm, Snapdragon and VIVE are trademarks of Qualcomm Incorporated, registered in the United States and other countries. Other products and brand names may be trademarks or registered trademarks of their respective owners.

References in this presentation to “Qualcomm” may mean Qualcomm Incorporated, Qualcomm Technologies, Inc., and/or other subsidiaries or business units within the Qualcomm corporate structure, as applicable.

Qualcomm Incorporated includes Qualcomm’s licensing business, QTL, and the vast majority of its patent portfolio. Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries, substantially all of Qualcomm’s engineering, research and development functions, and substantially all of its product and services businesses, including its semiconductor business, QCT.

© 2016 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T

Intellectual Property.

5G: From Concept to Reality May 23, 2016

Arun Ghosh

Director Advanced Wireless Technology Group

AT&T Labs

© 2016 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual

Property.

3

Key Drivers to 5G

Massive Connectivity

Throughput & Capacity

Latency

>100 Mbps Everywhere

4K Video

Augmented Reality

Cloud Computing

Industrial Automation

V2V

Sensor Network

Smart Grid

IoT

1000x Traffic

Healthcare

Macro Sub 6GHz

Pico Sub 6GHz

Pico mmWave

Unlicensed mmWave Access

WiFi

10

00

4G

5G


Property.

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Key Enablers for 5G

Forward Compatible

• Accommodate new numerology

• Accommodate new frame structure

• Use case specific PHY

Densification

• Self-Backhaul

• Adapts to Transport Requirements

• Energy Efficiency

SDN/NFV

• More open interfaces than LTE

• Separation of control and user plane

Massive Connectivity

• Rel 13 provides a IoT starting point

• Enable future new service classes

• Asynchronous massive connectivity

Multi-Antenna

• Massive MIMO • Active Antenna

• Multiple antenna

models

• MU centric



Standardization Aspects of 5G RAT


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Standards and Trial Activity Timeline

2016 2017 2018 2019 2020

3GPP Activity

SI

WI Phase 1 WI Phase 2

AT&T Trial and Testbed

Activity Friendly User Trial Pilots

Experimental Testbed Multi-Phases

Rel 17+


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Key Components of NR Currently in Standardization

Waveform & Numerology

Frame Structure

FEC Synchronizatio

n & Beam Acquisition

MIMO Framework

and Feedback

Self Backhauling RRC/RRM

NR Specification

Currently being discussed in 3GPP SI Well understood options/choices

Very critical to design these components the right way to have a design that will be future proof (scope of this presentation)

RAN Architecture

Flexible PHY (slicing)


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Forward Looking Design

Flexible UE Specific Numerology

Wide Subcarrier (emBB) Narrow Subcarrier (mMTC) Large CP (Broadcast)

Self Contained Sub-Frames

Sub-Band filtering/windowing is used to mitigate the interference between flexible subcarriers

Each transaction (DL/UL data or measurement) is contained within a sub-frame

DL control DL data Gap UL control (ACK/NACK)


Property.

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MIMO Framework

LTE Rel 10 LTE Rel 13 (FD-MIMO) NR Rel 15

8 Tx Fixed codebook Azimuth beamforming SU-MIMO Feedback Explicit RS

16 Tx Reconfigurable codebook Azimuth + Elevation beamforming SU-MIMO Feedback Explicit RS (separable in V and H)

Large number of Tx (128 – 256) Hybrid-beamforming Distributed MIMO Programmable codebook New feedback mechanism (analog)? Azimuth + Elevation beamforming MU-MIMO feedback Scalable and hierarchical RS and beamforming design

• Simplifies transport and increases placement flexibility for ultra-scalable density

• mmWave high resolution beamforming provides a natural isolation of backhaul and access

• Should allow for fast switching and re-routing to mitigate dynamic blocking in mmWave

• L1 design (numerology, RS density, frame structure) can be different for access and backhaul


Property.

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Ultra-Dense Self-Backhaul (in-band and out-of-band)

Is self-backhauling the same as relays???

• Multi-hop multi-stage scheduling and QoS control

• Fast (L1 or L2) based switching to support concept such as UE centric virtual cell

• Flow-control on each hop

• Shared cell ID or separate cell ID

L1/L2-hop

• Future proof design (flexible numerology and self contained frame structure)

• Minimize transmission of continuous signal and deliver most signal in a UE specific context

• No predefined timing relationship in the protocol (elastic design for flexible transport capability)

• Hierarchical RAN architecture


Property.

11

Network Architecture and NFV Readiness

Latency < TTI Latency > TTI RU RU

CU CU

HARQ ACK/NACK HARQ ACK/NACK

Both of these scenarios can exist on the same physical network for

different slices

5G 1 msec

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eLTE and NR Comparison

• NR is a non-backwards compatible 5G RAT that covers from 600MHz to 100GHz

• LTE will continue to evolves as well (eLTE)

• New features and new interface to the 5G packet core

eLTE 5 msec

5G >100MHz eLTE 20MHz

5G: Yes eLTE: No

5G: flexible eLTE: fixed

Latency

Bandwidth

Connectionless support

L1 Numerology

•Should support UE (or use case) specific L1 (network slicing)

•Should allow for asynchronous UL access (for massive IoT)

•Should allow for arbitrary combination of non contiguous spectrum in L1



Trials and Testbed Activities


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AT&T 5G Testbed Development

macro 15GHz + 28GHz

macro + pico 28GHz

macro + pico mmWave + sub 6GHz

2016 Evaluate very basic components of 5G RAT e.g. hybrid beamforming, mmWave, link adaptation & mobility Test simple application such as 4K HD video

Evaluate more complex components such as dynamic TDD, self-backhauling, coordination, CoMP, handoff Test QoS based video and other high bandwidth services

Evaluate 4G/5G co-existence and spectrum sharing, dual connectivity Test new classes of applications such AR/VR, MEC based services, V2X

2017

Planning + Spectrum

Follow us on Twitter @atisupdates www.atis.org/5G2016 Follow us on Twitter @atisupdates www.atis.org/5G2016

0835-0900 TechnologiesontheHorizon_DRoberson.pptx

leading the path towards 5g with lte advanced pro - … the path towards 5g with lte advanced pro...

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