5g vision and key access and networking technologieshuawei proprietary 5g vision and key access and...

Huawei proprietary

5G Vision and Key Access

and Networking Technologies Huawei Technologies, Canada Ltd. Contact: [email protected]

WINLAB Fall 2015 Conference

Dec. 03-04, 2015

NJ, USA

Global Talents Focusing on 5G Research

Paris Moscow

Stockholm

Shenzhen

Chengdu

Ottawa

Shanghai

Stockholm, Sweden •System Architecture •Algorithms

Paris, France •Standardization

Munich, Germany •Verticals

New Jersey, USA •5G Transmission

Ottawa, Canada •5G Radio •Network Architecture

5G Research Centers in China •Shen zhen •Shang hai •Cheng du

Moscow, Russia •Fundamental Algorithms

500+ 5G Experts 9 5G Research Centers

Munich New Jersey

Huawei proprietary

5G Vision

Air Interface technologies for 5G

Networking Technologies for 5G

Current 5G related standard activities

Contents

Huawei proprietary

5G Vision

Huawei proprietary

Today's Long Tail, Tomorrow's Dominant Field

Use Cases

Traffic /Revenue

Body Today's Long Tail

Voice

Web

Video

Massive IoT

Vehicular Telematics

Tele-operation

AR/VR MirrorSys High Speed

Railway

……

1ms Latency

1Million Connections/km2

10Gbps Throughput

5G will enable new applications, new business models, and even new industries

Huawei proprietary

Diversified Challenges and Gaps to Reach 5G

Network Architecture

Slicing Ability

Required

Connections

1,000K Connections

Per km2

Mobility

500km/h

High-speed Railway

Throughput

10Gbps

Per Connection

Latency

1 ms

E2E Latency

5G

100Mbps 10K 350Km/h 30~50ms Inflexible

LTE

GA

P 30~50x 100x 100x 1.5x NFV/SDN

7

5G Will Carry Many Industries and Benefit Stakeholders

Empower Internet of Things

End User groups

• Ubiquitous consistent experience

• New services

Customers (Verticals es & Other Network Providers )

• Easy access to the common infrastructure of 5G

• Real-time, on-demand service

• Easy deployment & maintenance

• Flexibility for multiple industries (SLICING)

Network Providers

Enhance Mobile Internet

Infrastructure Providers

• Combine infrastructure to form one infrastructure for network providers

Huawei proprietary

4G

2014 2015 2016 2017 2018 2019

5G Innovations Will be Applied to 4G to Leverage 4G Investment

Revolution

Evolution

5G innovations will be applied to 4G

R14 R13 R15 R16 …

5G

R12

…

4G will simulate the emergence of new applications for 5G

4.5G

Huawei proprietary

Key Concerns for Reaching 5G

Flexibility & Spectrum Efficiency

One Physical Network Multiple Industries

New Air Interface New Network Architecture

Aggregate All Available Bands

Spectrum

Huawei proprietary

5G Will Aggregate Sub 6GHz and the Bands >6GHz

WRC15 WRC19

10 50 40 30 20 60 80 70 90 1 5 4 2 6 3

5G Complementary Bands for Capacity, 45GHz available 5G Primary bands

GHz

Visible Light

Cellular Bands

Requirement >500MHz for IMT-2020

45GHz available for future Cellular Access and Self-Backhaul

100

Huawei proprietary

Access Technologies

Huawei proprietary

5G: A Single UAI targeting Diverse Requirements

Diverse Applications

Diverse QoE

Diverse Adoption

Data Rate Latency Connections Battery Life Voice Web Video Verticals…… Outdoor/ indoor

Wide/Deep coverage

Low/High band

Wide/Narrow Bandwidth

UAI (Unified Air Interface)

to meet the diverse requirements

Huawei proprietary

New Air Interface

SCMA

F-OFDM

Polar Code

Full Duplex Massive MIMO

Mobile Internet Internet of Things

One air interface fits many applications with high flexibility,

at least a 3x spectrum efficiency improvement

Adaptive Air Interface

SCMA: Sparse Code Multiple Access F-OFDM: Filtered OFDM

Huawei proprietary Page 14

UCNC - UE Centric No Cell Radio Access

D2D enabled UE Cooperation C-RAN based UE centric TP Optimization

Abstraction of the UE radio access with virtualized the

cell concept to enable RAN slicing by

Decoupling the UE from physical cell-site

Decoupling DL/UL

Decoupling Control/Data

Decouple physical topology with services

Cell centric cellular to UE centric no cell

New UE and network transmit node association mechanism enabled by “Hyper cell ID” and “Dedicated UE connection ID”

CRAN and D2D enabled UE centric transmission point (TP) cooperation and device cooperation to eliminate “cell edge”

New UE states support massive connected devices with low signaling overhead and energy consumption

Seamless mobility transparent to UE with simplified procedural and reduced latency


eMBB Enhanced Mobile

Broadband

mMTC Massive Machine Type

Communications

uMTC Ultra-reliable and Low-latency

Communications

Future IMT

New waveform e.g. f-OFDM

Wider Bandwidth

Adaptive frame structure

Non-Orthogonal Multiple Access,

e.g. SCMA

UCNC

Massive MIMO

Polar Code

Grant-free multiple access

Narrow band SCMA

Asynchronous (TA-free) Transmit

UE dedicated connection ID

Polar Code for small packet

Shorter TTI

SCMA based grant-free Tx

Fast system re-entry scheme

ACK/NACK less re-transmission

UE cooperation diversity

New data notification methods

Polar Code

Potential Technologies to Meet ITU Requirements

Huawei proprietary

Networking Technologies

Huawei proprietary

Challenges for 3G/4G Wireless Networks

1. Infinite types of services/applications

with huge disparate QoE/QoS

requirements are emerging

2. Operation of network should be

optimized for different vertical

services

3. Openness of future networks –

service customized functions, other

than network functions

4. Integration of eMBB/mMTC/uMTC

1. One-fit-all user plane architecture not

optimal

• Different service requires different mobility

management, charging policy, authentication,

etc

2. MME, RRC, PCRF, etc only optimized for

individual mobile services

3. Closed model in 3G/4G

4. By nature, 3G/4G optimized for personal

communications

5G 3G/4G

Huawei proprietary

Technology Requirement for 5G Wireless Network

NFV and SDN

Customization Integration (Service/Infrastructure)

Automation

Cooperation Future Proof Simplicity

E2E Network Slicing Model


Business Model for VN Service Slice

VN Customer has an end user

(device) population

MTC (Alarm, Sensor company)

Video distribution company

Police, Fire

E-health monitoring service

VN Customer 1

Slice Network

Provider A

Network

Provider B

VN Customer 2

Slice

Infra-structure

Provider C

Infra-structure

Provider A

Access Points

End User

Population

(Customer 1)

End User

Population

(Customer 2)

Control + Resources

Or

Connectivity service

(Dynamic or static)

Infra-structure Provider (InP)

Provide resources and controlling

technology with Phy abstractions

Dynamic or static

Provide connectivity service in specific

geographical area

Network Provider Telecom

Connectivity Service Provider

(TCSP)

Own or borrow resources from InPs.

Service Provider A may own infra-

structure Y

Also called VNO (VN operator)

Infra-structure Abstraction

TCSP Offers an E2E Service Slice to the Customer

20

Service Customized Virtual Networks (SCVN)

DC

DC @

C-RAND-RAN

DC

Physical

GWNI

8888

8888

8888

eMTC slice

eMBB slice

Other slices (common or

4G slice)

D2D slice

cMTC slice

Edge network segment

• hard slicing

Central network segment

• soft slicing

3G/4G network

• a network slice

5G Key L1

Enabling

Technologies

21

Compose Network Slices (Independent, Isolated, E2E)

Network Slicing Technologies

(Examples)

1. Dynamic integer programming

algorithm for fast network topology

generation

2. Minimum perturbation re-

optimization linear programming

algorithm

Slice-1

Slice-2

Slice-3

Slice-4

Drastically Reduce the Dependence of

Network Functions


Slice Orchestration, Management and Creation

Service Request by VN operator (with Service attributes)

E.g., service function chain, Transport and Traffic distribution (time and space)

Admission Control (VNAC)

Creation of a Slice instance (Software Defined Topology – SDT)

Only Virtual Topology with instantiated VNFs

Network with reserved resources may allocate physical resources

Slice Operation (Software Defined Radio Resource Allocation –

SDRA)

Traffic engineering, monitoring, policing, charging etc.

Slice Termination


Slice Orchestration, Management and Creation Network Provider 2

Network Provider 1 Orchestrator/SONAC

OSS/BSS

Global Customer

Service Mgmt (CSM)

SDRA

- VNAC SDT SDP

Network Provider

Information

Database

(Public)

Infrastructure

Connectivity service provided by Slice A

Connectivity service provided by Slice B

Control Functions (customer controlled)

Control Functions (network controlled)

User Plane Functions (customer controlled)

User Plane Functions (network controlled)

Common Control functions

(network controlled)

e.g. Per user

Virtual SGW

Per service Virtual

SGW

Slice Specific control functions

(network or customer controlled)

Slice specific user plane

functions (network or

customer controlled)

CSM

Slice

A

VNFM VIM

Customer

(e.g. A vertical

service operator)

VNFs


Slice Orchestration, Management and Creation

A service slice is specifically prepared for the customer by slicing the network,

i.e., by creating a Network Slice. Several options:

Use existing matching network slice descriptor

- E.g. Another operator requests a eMBB slice. It is created using existing eMBB description.

Introduce a new network slice descriptor to create a network slice

instance

- E.g. Vertical service operator requests a new service (e.g. CDN). It is created using customized

network slice descriptor.

Integrate into an existing network slice instance, e.g. using same

resources, e.g.:

- Another MTC operator requests a similar MTC service

- An operator already having a network slice requests another service using the same resource

pool

25

SONAC (Service Oriented Network-Slice Auto-Creator) - Example

VNAC

+SDT

SDRA Logical topology

mapping to physical network resource

SDP End-to-end transport

protocol design

Customer Service Description/requirement Service level Graph QoE/QoS requirement

Un

de

r N

etw

ork

op

era

tor’

s c

on

tro

l

VN logical topology (placement of v-s-SGWs in infrastructure)

WN infrastructure (resource pool)

VN physical topology

VN with customized protocol Transport protocol defined by SDP

VN graph

Forwarding graph description; link description

V-u-SGW (U1) V-u-SGW (U2) F1

U2 U1

U2 U1

U2 U1

U2 U1

U2 U1

26

Required Network Technology Components

VN Admission/service negotiation:

– Different customer would have different demand distributions in time and space – How to get

multiplexing gain

– Different services needed different amount of resources based on QoS and geographical distribution

– How the charging is done for a customer having a large number of users with different services

– When customer request multiple slices using same resources how to make the admission decision

Software Defined Topology (Virtual if resources are not reserved)

– Optimal placement of the Service Functions? Virtual Topology Placement depend son traffic, mobility.

• Fast moving user can have its SGW much inside the network while slow moving user can have its SGW close

to edge. Similarly caching functions.

– For a hard slice or resource reserved slice physical topology also established.

– E.g.,MTC type of services aggregation points, message filtering, Customer functions, should be

strategically placed.

27

Required Network Technology Components

• Traffic Engineering (TE)

– Slice Specific TE does dynamic resource allocation to slices and sessions. Per slice KPI and QoE guarantees are needed.

– If resource sharing is done, Global traffic engineering is required across the slices

– Depending on traffic load, invokes a resource coordination function for local areas, take action to control traffic or trigger for service re-negotiation

– QoE Guarantee – using user’s feedback or action monitoring, QoS to QoE mapping tables are stored (per user based, per group based, per application based) to deliver required QoS

– Access schemes for massive MTC and efficient short packet delivery

• Customer Service management, Connectivity Management, Caching and Pre-fetching, Context Management

– Imbalance between Demand vs Revenue prediction curves (e.g., Demand based charging, User in the loop)

– Per user and per service/slice based mobility handling/tracking

– Per slice based content distribution and caching and pre-fetching based on per user/group

– Context data analytics/storage and using them for efficient service delivery and for 3rd party usage


5G forums and standardization activities

Huawei proprietary

Important 5G related Standard Activities

Industry: NGMN, 5GPPP, METIS II, FANTASTIC 5G, mmMAGIC, 5GXhaul, 5G-EX

Standards: ETSI /NFV, 3GPP (SA1, SA2 and SA5)

Current/recent activities in NGMN

– White paper on 5G issued in January, 2015 • (a) 5G vision; (b) 5G requirements; (c) 5G Architecture concepts; (d) Spectrum

considerations; • Basis for many other 5G standard organization activities

- Currently four work streams under Project P1 • WS1-Architecture, WS2-Verticals, (3) WS3-Requirements for better MBB and Telco services

and, (4) WS4- Interacts with standard development organizations. • WS1Further work under 3 groups:

• E2e Architecture – currently discuss definition of the SLICE • Network and Service Management • Security

Huawei proprietary

Important 5G related Standard Activities

Current/recent activities in 3GPP SA1 – Services

• Discussed 5G use cases and categorized them into 4 main areas − Enhanced Mobile Broadband (eMBB): higher capacity; enhanced connectivity; higher

user mobility. − Critical Communications (CriC): higher reliability with lower latency; higher reliability

and higher availability with lower latency; very low latency; higher accuracy positioning.

− Massive Internet of Things (mIoT): high connection density; low complexity; low power consumption.

− Network Operations (NEO): flexible functions and new value creation; migration and interworking; optimizations and enhancements.

SA2 – Architecture: Currently discusses the following - Key NextGen Architecture Requirements - Key Technical Areas and Key issues that need to be addressed


2010 2011 2012 2013 2014 2015 2016 2018 2019 2020 2021 2017 2022

Rel-10 Rel-11 Rel-12 Rel-13 Rel-14 Rel-15 Rel-16

3GPP

Req., Eval. Criteria

ITU Workshop

Proposal

WRC-12 WRC-15 WRC-19

Spec.

ITU-R

LTE New Branding (4.5G) LTE-Advanced (4G)

We are here

RAN

5G Timeline (Release 14 and onwards)

Eval

Notes: * Proposal submission to ITU no later than June 2019 * Spec submission to ITU no later than February 2020

Rel-17

5G SI(s) UAI, other features /

enhancements

5G WI(s) Phase-2

5G WI(s) Phase-1

5G WI(s) Phase-1: fundamental features of UAI

focusing on spectrum below 6GHz Phase-2: enhancement features of UAI

below and above 6GHz

5G SI(s) Start from UAI below 6GHz UAI above 6GHz will follow up

after the channel model above 6GHz is ready

Huawei proprietary

Thank you

Copyright©2015 Huawei Technologies Co., Ltd. All Rights Reserved. The information in this document may contain predictive statements including, without limitation, statements regarding the future financial and operating results, future product portfolio, new technology, etc. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.


SCMA: Sparse Code Multiple Access

0

50

100

150

200

250

300

350

400

LTE-Advanced SCMA

Number of Connections

Nu

m o

f C

on

ne

ctio

ns

95

375

x3.9

Non-orthogonal multiplexing of layers

Overloading to increase overall rate and connectivity

Sparsity to limit complexity of detection

Multi-dimensional codewords with shaping gain and better spectral efficiency

Spreading for robust link adaptation

Grant-free access for reduction of both latency and signaling overhead


Polar Code for reliability and low energy consumption

For small packet (e.g. IoT, control channel), Polar Codes have 0.5-2dB gain comparing with

Turbo Code used in LTE, the gain is significant.

No error floor, suitable for ultra-reliable transmission

Low energy consumption


Waveforms and MA f-OFDM

SCMA

Ultra NB WF

Coding Modulation Polar

Turbo

Network Coding

Access Protocols Scheduled

Grant-free

Adaptive HARQ

Frame Structure Flexible TTI

Flexible

Numerologies

Flexible Duplex

Full-Duplex

Software Defined Air Interface (SoftAI) to

Integrate all Use Cases

Optimized RAT for each

application/use case

Dynamic or semi-static or static

configurable

Across frequency carriers or within

the same frequency carrier

Forward compatible: easy to add

future-proof new service/use case

Smooth migration of LTE

Soft AI

One size fits all (LTE) Air Interface Adaptation

(5G)


f-OFDM: Enable Future Proof Design and RAN Slicing

Filtered-OFDM

Frequency

Driverless Car Smart Metering MBB Broadcast / Multicast

Flexible subcarrier parameterization

Enable future proof design and RAN slicing by

allowing independent co-existence of multiple

services within the same carrier

Sub-band digital filter to control inter-block

interference (spectrum localization)

Orthogonal Intra block to maintain OFDM

benefits

Non-orthogonal to enable co-existence of

multiple numerologies without guard band

Same Carrier

MBB mMTC uMTC

Numerology-1 Numerology-2 Numerology-3

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