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© 2019 Nokia1
Network Slicing in Public and Private 3GPP 5G NetworksNetwork Slicing – Networking Symposium Workshop
Cinzia Sartori
Nokia Bell Labs
19-03-2019
Network Slicing - Networking Symposium
© 2019 Nokia2 Network Slicing - Networking Symposium
Contents
• Network Slicing vs Private Networks
• Timeline
• 5G Network slicing, Transport Slicing
• Slice Lifecycle Management
• Trails and PoC
© 2019 Nokia3 Network Slicing - Networking Symposium
What is Network Slicing ?
Public safety
Fixed Wireless Access
Industrial automation
Consumer Mobile Broadband
Connected vehicles
Massive Sensors
Technical aspects Business aspects
Multiple customized logical networks on a shared physical infrastructure in an economic way
Mass Events
© 2019 Nokia4 Network Slicing - Networking Symposium
Network Slice Characteristics
Data speed Latency Network ServicesReliability Security
Mobility
TCO / ARPU
Geographical coverage
Positioning, Analytics,
Exposure
Management / Control
From simple GB/month to monetizing rich SLA between slice provider and tenant
© 2019 Nokia5 Network Slicing - Networking Symposium
Network Slicing Use Cases
M2M, IoT EPC overlay for 5G, FWA To support new business models
• Mechanism to provide SLAs for multiple
service providers
• Cloud environment makes the slicing
technically/economically feasible
• Minimum
disruption
• Investment done
in new platform
• 10x-100x difference
in ARPU
• For security and
overload protection
Happening today In the future
MVNO, MOCN
• Dedicated Core
Network in
Network sharing
or MVNO cases
From small number of static operator slices to large number of multi-tenant dynamic slices
© 2019 Nokia6
Techno-economic modeling of network slicing
Bell Labs Consulting analyzed the costs of implementing and operating network slicing compared to the
potential revenue that could be generated
Three network deployment scenarios were considered for the techno-economic modeling
Network Slicing - Networking Symposium
© 2019 Nokia7Network Slicing - Networking Symposium
Unleashing the economic potential of network slicing
© 2019 Nokia8
Challenging for traditional telco architectures and business modelsPrivate Networks requirements: example of Industrial IoT
Autonomy
• Keep data local
• Require a
resilient
architecture
Security
• Full control of
infrastructure,
people, and
information
• IT/Webscale
level of ext.
attacks not
acceptable
Business model
• Avoid vendor &
MNO lock-in
• Fair and quick
access to
spectrum
Liability
• MNOs have
only partial
control of the
solution
Longevity
• Need much
longer
equipment
lifetimes
• Need much
longer support
lifetimes
Network Slicing - Networking Symposium
© 2019 Nokia9
5G Private Networks – Rel.16
Network Slicing - Networking Symposium
Non-Public and Closed Access Group
Networks
Enhancements to the 5G System to support
non-public and MNO-hosted closed access
group (CAG) networks in terms of:
• Network discovery and selection
• Roaming between CAG and public
networks
• Access control and mobility
• Support of 5G LAN service
Operation in Licensed and Unlicensed
Spectrum
Licensed and unlicensed band operation
Achievable reliability &
latency of communication
Importance of cost &
ease of deployment
Unlicensed Licensed
Low High
ModerateHigh
PLMN
CAG
Two options for deploying private networks
Public + private
servicesPrivate services
5GC
gNB gNB
UE
Non-public network
5GC
gNB
UENo mobility
to PLMN
Can access
non-CAG gNB
Clo
sed
acc
ess
gro
up
No
n-p
ub
lic n
etw
ork
© 2019 Nokia10
Intelligent, converged operational technologies in a Future X networkTechnology enablers for an industrial IoT revolution
Network Slicing - Networking Symposium
Universal Adaptive Core
Programmable Network OS
Digital Value Platforms
Augmented Cognition Systems
ConvergedEdge Cloud
Software-defined
Massive ScaleAccess
Long fibers
ConvergedNode
Shortwaves & wires
Emerging Devices & Sensors
Smart Network Fabric
Autonomously optimized coverage& capacity
Openness acrossthe architecture
5G wireless protocols for automation
Eliminate wires; support time synchronous ops
Private edge cloud
Scalable, secure local computing
Deep slicing forindustrial IoT networks
Multiple stakeholders on one infrastructure
ML-enabled automated operations
“Expertless” monitoring, prediction, optimization
© 2019 Nokia11
Rel.15 brings network slicing, R16 private networks5G timeline in 3GPP
Network Slicing - Networking Symposium
Network Slicing Private Networks
2016
Q4
2018
Q1 Q2 Q3 Q4
5G NR NSA
completion
5G NR SA
completion
2017 2019
Q1 Q2 Q3 Q4
5G NR NSA
options 4&7
5G Rel-16
Stage 3 completion
© 2019 Nokia12 Network Slicing - Networking Symposium
Technology
© 2019 Nokia13
5G Network Architecture for Network Slicing: Common and Shared functions
Slice Specific Network Functions
N3
DN
N2N7/
N10/
N11N1
N5
UPF
NG-AF
N4
NG-SMF
N6
(*) Could be left up to operator decision
NEF NRF
Slice Common Network Functions
UDM
AMF AUSF PCF
(*) (*)
(*)
NSSF
UENG-
RAN
Shared resources
Dedicated resources
Network Slicing - Networking Symposium
© 2019 Nokia14
3GPP: Three pre-defined Slice types in 5G
AMF: Core Access and Mobility Management Function
SMF: Session Management Function
UPF: User Plane Function
eMBB
URLLC
mIoT
AM
F
AM
F
AM
F
SMF a
SMF b
UPF a
UPF b
Slice 1
Slice 2
Slice 3
SMF a
SMF b
UPF a
UPF b
SMF a
SMF b
UPF a
UPF b
Slice N
…
High throughput:
100Mbps - ~1 Gbps
High mobility support
No mobility,
small data: 100 kbps
Low throughput,
terminal battery life 10 years
High density:
100 million connections/km2
Latency: 1ms: 5ms
High availability,
mobility and
edge computing support
…many more can be defined by an operator
Network Slicing - Networking Symposium
© 2019 Nokia15
RAN Slicing: partly standardized, partly implementation dependent
AMFSMF
UPF
Slice B
SMF
UPF
Slice C
gNB
UE
SMF
UPF
Slice A
The UE can use multiple
network slices at the same
time and within one network
slice multiple PDU sessions
PDU sessions are slice
specific
RAN selects the RAN slice instance and AMF for
the UE based on requested/allowed NSSAI and
Temp ID
Stand. in
3GPP
NG3
NG3
NG11
NG11NG2
standardized in 3GPP
Stand. in
3GPP
Single RRC per UEStand. in
3GPP
Network Slicing - Networking Symposium
© 2019 Nokia16
Per 3GPP, these are implementation-dependentKey capabilities: RAN
1. Flexible creation of function instances, optimized for
different characteristics or behaviors
– E.g. instances with acceleration, or different algorithmic
behaviors, etc.
2. Flexible placement of function instances at different
locations in the network
– E.g. very close to the radio, or deeper in edge cloud, etc.
3. Flexible, adaptive radio resource management and
scheduler design
– Flexible ways for assigning/reserving/partitioning radio resources
• RAN Capabilities for flexibility for provide diverse functional
behaviors, support diverse KPIs, construct flexible SLAs
User-Plane VM1Low-throughput, Non
Multi-connectivity
User-Plane VM2High-throughput optimized,
Multi-connectivity capable
Low-band High-band WiFi
Cloud RAN
UE/Flow
Placement
CP-UECP-Cell
CP-
CentralCP-OM
RA
N C
P
MAC
Sch RLC
PHY
MAC
Sch RLC
PHY
MAC
PHY
Slice to Instance
Mapper
CP-UE
PDCP
SDAP
PDCP
SDAP
UPF (or SGW-
PGW)
AMF-SMF
(or MME)
UPF (or SGW-
PGW)
F1 F1
Network Slicing - Networking Symposium
© 2019 Nokia17
WAN
Transport Slice Introducing Nokia NF-IX Architecture
Nokia VSR/vEPC
VNFs
E2E Underlay Based on Segment Routing
Nokia Network services Platform
(SRIC/NSP)
Nokia SR-OS Routers
Nuage Networks Virtual Network
ServicesTelco cloud CO
E2E BGP Signaled Overlay Networks
Network Slicing - Networking Symposium
• Set of distinct connections between multiple network functions (VNF or PNF), e.g. to implement N2, N3 etc. reference points
• Transport slices are realized with
- Deterministic SLA , Any technology (IP, Optics, Microwave and PON, Any tunnel types IP, MPLS, SR, ODU/OCH
© 2019 Nokia18 Network Slicing - Networking Symposium
Automated Slice
Lifecycle
Management
© 2019 Nokia19
Preparation, Instantiation, Run-Time and DecommissioningNetwork Slice Instance Lifecycle Management
Network Slicing - Networking Symposium
Design Pre-provision
Network environment
preparation
Preparation
Instantiation/
ConfigurationActivation
Instantiation, Configuration and Activation
SupervisionModification
Run-time
Reporting
De-activation Termination
Decommissioning
Lifecycle of a Network Slice Instance
© 2019 Nokia20
Mode of Operation Architecture
Network Slicing - Networking Symposium
Service Orchestration Service Assurance/Analytics Service Intelligence
E2E Cross-Domain Orchestration & Service Lifecycle Management
Customer Portal
5G RAN domain controller 5G Core domain controllerTransport domain controller NFVO/VNFM
Domain Controllers
NSW FlowOne NSW eSOC* NSW Digital Intelligence
Adaption Layer
© 2019 Nokia21
Network Management
and optimization (SON)
NetAct and EdenNet
Planning and
Optimization
Massive scale
network wide
provisioning
Service
Monitoring
& KPIs
Transport and SDN
Management
NSP and Nuage
Closing the Loop
Service Assurance
Digital Intelligence
Secure
Security
Monetize
Digital Experience
Cloud Orchestration
NFVO and VNFM
CloudBand
ETSI
Service Fulfillment
E2E Service Orchestrator
FlowOne Federate
Inventories and Catalogues
Nokia end-to-end portfolio for Slice Lifecycle Management
1
2
3
4
5
Network Slicing - Networking Symposium
© 2019 Nokia22 Network Slicing - Networking Symposium
Trials, PoCs
© 2019 Nokia23
5G Smart Urban Mobility
Automated drivingHD maps
Infotainment
5G Smart Sea Port
Real-time video
Deep Slicing & WAN IoT for Smart Sea Port & Urban Mobility
Interworking between functions and services in CSP and vertical-owned clouds for critical applications
Traffic light management
Data processing from mobile
sensors for pollution control
Virtual Reality for remote site
inspections
Different automotive and
public safety slices running
over the same wide area
network
Opportunity for CSPs to partner with vertical industries and become DSPs
Support of massive number of sensorsMobility of edge services and applicationsWAN
IoTDeep
Slicing
© 2019 Nokia24
5G Industrial Automation
Industrial Network Slicing
Process Automation
LAN IoT for Industrial Automation
Light core portable to local cloud owned by industries for data security, provide reliability and low latency
High reliability through Multi-
Connectivity and integration
of Time Sensitive Networks
Plug & Play and automation for dedicated networks operated by vertical industries themselves
Coupling advanced interactive
robots with wireless perimeter
intrusion detection
5G Industrial AutomationUltra-reliable, low-latency connectivity
Integrating industrial services and industrial networks e.g. Time Sensitive Network (TSN)
LAN
IoT
© 2019 Nokia25