Download 5G Vision and Key Access and Networking Technologies

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
Huawei proprietary
Global Talents Focusing on 5G Research
500+ 5G Experts
9 5G Research Centers
Stockholm, Sweden
•System Architecture
•Algorithms
Stockholm
Paris, France
•Standardization
Ottawa
New Jersey
Paris
Munich Moscow
Shanghai
Chengdu
Munich, Germany
Moscow, Russia
•Verticals
•Fundamental
Algorithms
New Jersey, USA
Ottawa, Canada
Shenzhen
•5G Transmission
•5G Radio
•Network Architecture
5G Research Centers in China
•Shen zhen
•Shang hai
•Cheng du
Contents
 5G Vision
 Air Interface technologies for 5G
 Networking Technologies for 5G
 Current 5G related standard activities
Huawei proprietary
Page 3
5G Vision
Huawei proprietary
Page 4
Today's Long Tail, Tomorrow's Dominant Field
5G will enable new applications,
new business models, and even new industries
Traffic
/Revenue
Video
10Gbps
Web
1ms
Throughput
Voice
Vehicular
Telematics
Latency
1Million
Connections/km2
Massive IoT
AR/VR
MirrorSys
High Speed
Railway
Teleoperation
……
Use Cases
Body
Huawei proprietary
Today's Long Tail
Page 5
Diversified Challenges and Gaps to Reach 5G
5G
Latency
Throughput
Connections
Mobility
Network
Architecture
1 ms
10Gbps
1,000K
Per
Connection
Connections
Per km2
500km/h
Slicing
High-speed
Railway
Ability
Required
100x
1.5x
NFV/SDN
10K
350Km/h
Inflexible
E2E
Latency
GAP
30~50x
LTE
30~50ms
100x
100Mbps
Huawei proprietary
Page 6
5G Will Carry Many Industries and Benefit Stakeholders
Empower
Internet of Things
Enhance Mobile
Internet
Customers (Verticals es &
Other Network Providers )
7
• Easy access to the common
infrastructure of 5G
• Real-time, on-demand service
Network
Providers
• Easy deployment &
maintenance
• Flexibility for multiple
industries (SLICING)
Infrastructure
Providers
• Combine infrastructure
to form one
infrastructure for
network providers
End User groups
• Ubiquitous consistent
experience
• New services
5G Innovations Will be Applied to 4G to Leverage 4G
Investment
2014
…
R12
2015
2016
R13
R14
5G innovations will be applied to
4G
2017
R15
5G
2018
2019
R16
…
Revolution
4G will simulate the emergence of new applications for
5G
4
G
4.5G
Evolution
Huawei proprietary
Page 8
Key Concerns for Reaching 5G
Spectrum
Aggregate All
Available Bands
New Network
Architecture
One Physical Network
Multiple Industries
Huawei proprietary
New Air Interface
Flexibility &
Spectrum Efficiency
Page 9
5G Will Aggregate Sub 6GHz and the Bands >6GHz
WRC15
WRC19
Requirement >500MHz
45GHz available
for future Cellular Access and Self-Backhaul
for IMT-2020
Visible
Light
Cellular
Bands
1
2
3
4
5
6
10
20
30
40
50
60
70
80
90
100
GHz
5G Primary bands
5G Complementary Bands for Capacity, 45GHz available
Huawei proprietary
Page 10
Access Technologies
Huawei proprietary
Page 11
5G: A Single UAI targeting Diverse Requirements
UAI
(Unified Air Interface)
to meet the diverse requirements
Diverse
Applications
Voice
Web
Video
Verticals……
Diverse
Adoption
Diverse
QoE
Data Rate
Latency
Connections
Huawei proprietary
Battery Life
Outdoor/
indoor
Wide/Deep
coverage
Low/High
band
Wide/Narrow
Bandwidth
Page 12
New Air Interface
Full Duplex
Mobile Internet
Massive MIMO
Internet of Things
Adaptive
Air Interface
SCMA
Polar Code
F-OFDM
SCMA:
Sparse Code Multiple Access
F-OFDM: Filtered OFDM
One air interface fits many applications with high flexibility,
at least a
3xHuawei
spectrum
efficiency improvement
proprietary
Page 13
UCNC - UE Centric No Cell Radio Access
Cell centric cellular to UE centric no cell

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




Huawei proprietary
D2D enabled UE Cooperation
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
Page 14
Potential Technologies to Meet ITU Requirements












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
eMBB
Enhanced Mobile
Broadband
Future IMT

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
mMTC
uMTC
Massive Machine Type
Communications
Ultra-reliable and Low-latency
Communications
Huawei proprietary
Page 15
Networking Technologies
Huawei proprietary
Page 16
Challenges for 3G/4G Wireless Networks
5G
3G/4G
1. Infinite types of services/applications
with huge disparate QoE/QoS
requirements are emerging
1. One-fit-all user plane architecture not
optimal
2. Operation of network should be
optimized for different vertical
services
2. MME, RRC, PCRF, etc only optimized for
individual mobile services
3. Openness of future networks –
service customized functions, other
than network functions
3. Closed model in 3G/4G
4. Integration of eMBB/mMTC/uMTC
•
4.
Huawei proprietary
Different service requires different mobility
management, charging policy, authentication,
etc
By nature, 3G/4G optimized for personal
communications
Page 17
Technology Requirement for 5G Wireless Network
Customization
Cooperation
Integration
(Service/Infrastructure)
Future Proof
Automation
Simplicity
NFV and SDN
E2E Network Slicing Model
Huawei proprietary
Page 18
Business Model for VN Service Slice
Infra-structure Abstraction
Also called VNO (VN operator)
End User
Population
(Customer 1)
End User
Population
(Customer 2)
VN Customer 1
Slice
VN Customer 2
Slice
MTC (Alarm, Sensor company)
Video distribution company
Police, Fire
E-health monitoring service
Control + Resources
Or
Connectivity service
(Dynamic or static)
Network
Provider B
Infra-structure
Provider C
Infra-structure
Provider A
Access Points
VN Customer has an end user
(device) population




Network
Provider A
Network Provider  Telecom
Connectivity Service Provider
(TCSP)
 Own or borrow resources from InPs.
 Service Provider A may own infrastructure Y
Infra-structure Provider (InP)
 Provide resources and controlling
technology with Phy abstractions
 Dynamic or static
 Provide connectivity service in specific
geographical area
TCSP Offers an E2E Service Slice to the Customer
Huawei proprietary
Page 19
Service Customized Virtual Networks (SCVN)
Edge network segment
• hard slicing
eMBB slice
D2D slice
8888
Central network segment
• soft slicing
eMTC slice
8888
8888
cMTC slice
3G/4G network
• a network slice
Other slices (common or
4G slice)
DC
5G Key L1
Enabling
Technologies
Physical
D-RAN
C-RAN
GWNI
DC
20
@
DC
Compose Network Slices (Independent, Isolated, E2E)
Network Slicing Technologies
(Examples)
Slice-1
Slice-2
Slice-3
1. Dynamic integer programming
algorithm for fast network topology
generation
2. Minimum perturbation reoptimization linear programming
algorithm
Slice-4
Drastically Reduce the Dependence of
Network Functions
21
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
Huawei proprietary
Page 22
Slice Orchestration, Management and Creation
Network Provider 2
Network Provider
Information
Database
(Public)
Network Provider 1
Orchestrator/SONAC
OSS/BSS
SDRA
- VNAC
Global Customer
Service Mgmt (CSM)
Customer
(e.g. A vertical
service operator)
SDT
SDP
VNFM
VIM
Common Control functions
(network controlled)
CSM
Slice
A
Slice Specific control functions
(network or customer controlled)
VNFs
Connectivity service provided by Slice A
Connectivity service provided by Slice B
Slice specific user plane
functions (network or
customer controlled)
Infrastructure
Control Functions (customer controlled)
User Plane Functions (customer controlled)
Control Functions (network controlled)
User Plane Functions (network controlled)
Huawei proprietary
e.g. Per user
Virtual SGW
Per service Virtual
SGW
Page 23
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
-

Introduce a new network slice descriptor to create a network slice
instance
-

E.g. Another operator requests a eMBB slice. It is created using existing eMBB description.
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
Huawei proprietary
Page 24
SONAC (Service Oriented Network-Slice Auto-Creator) - Example
Customer Service Description/requirement
Service level Graph
U1
VN graph
V-u-SGW (U1)
QoE/QoS requirement
F1
U2
V-u-SGW (U2)
Under Network operator’s control
U1
VNAC
+SDT
Forwarding graph description; link description
VN logical topology (placement of v-s-SGWs in infrastructure)
U1
U2
WN infrastructure (resource pool)
SDRA
Logical topology
mapping to physical
network resource
VN physical topology
U1
VN with customized protocol
U2
Transport protocol defined by SDP
U2
SDP
End-to-end transport
protocol design
25
U2
U1
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.
26Page
26
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
27
–
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
Page 28
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
Page 29
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
Huawei proprietary
Page 30
5G Timeline (Release 14 and onwards)
2010
2011
2012
WRC-12
2013
2014
2015
2016
WRC-15
2017
2018
2019
WRC-19
ITU Workshop
RAN
Rel-10
Rel-11
Rel-12
Rel-13
We are here
3GPP
5G WI(s)
 Phase-1: fundamental features of UAI
focusing on spectrum below 6GHz
 Phase-2: enhancement features of UAI
below and above 6GHz
LTE-Advanced (4G)
Rel-14
Proposal
Rel-15
2021
2022
Eval
ITU-R
Req., Eval.
Criteria
2020
Rel-16
5G SI(s)
UAI, other features /
enhancements
Spec.
Rel-17
5G SI(s)
 Start from UAI below 6GHz
 UAI above 6GHz will follow up
after the channel model above
6GHz is ready
5G WI(s) 5G WI(s)
Phase-1 Phase-2
LTE New Branding (4.5G)
Notes:
* Proposal submission to ITU no later than June 2019
* Spec submission to ITU no later than February 2020 Huawei proprietary
Page 31
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.
Huawei proprietary
Page 32
SCMA: Sparse Code Multiple Access
Number of Connections
400
375
Num of Connections
350
300
250
x3.9
200
150
100
95
50
0
LTE-Advanced






SCMA
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
Huawei proprietary
Page 33
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
Huawei proprietary
Page 34
Software Defined Air Interface (SoftAI) to
Integrate all Use Cases
One size fits all (LTE)  Air Interface Adaptation
(5G)





Soft AI
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
Waveforms and MA
Access Protocols






f-OFDM
SCMA
Ultra NB WF
Scheduled
Grant-free
Adaptive HARQ
Frame Structure
Coding Modulation



Polar
Turbo
Network Coding
Huawei proprietary




Flexible TTI
Flexible
Numerologies
Flexible Duplex
Full-Duplex
Page 35
f-OFDM: Enable Future Proof Design and RAN Slicing
Same Carrier
Filtered-OFDM
uMTC
Numerology-1




MBB
Numerology-2
Flexible subcarrier parameterization
mMTC
Numerology-3
Frequency
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
MBB
Huawei proprietary
Smart Metering Driverless Car
Broadcast / Multicast
Page 36