SReXperts Moscow - Nokianokia.artics.com/materials/Mobile_Core_Strategy_Update.pdfSR-OS-MG Operating...
Transcript of SReXperts Moscow - Nokianokia.artics.com/materials/Mobile_Core_Strategy_Update.pdfSR-OS-MG Operating...
© 2016 Nokia1 <Public>
SReXperts Moscow
Mobile Core Strategy – EPC evolution
•Taurintas Jokubauskas
•06-12-2016
© 2016 Nokia2
EPC portfolio overview and market situation
<Public>
© 2016 Nokia3
Key Market DevelopmentBeyond consumer data evolution
Broadband Evolution
Internet of ThingsCloud Evolution
1 2 3Growing Business !!! Happening Now !!! Opportunity to grow !!!
Supporting growth of consumer market, but also as a platform to engage business & residential markets
Top 3 use cases for cloud deployments are Mobile VoIP, EPC and Market Application oriented packet cores
Tens of service verticals and Billions of devices to drive IoT connectivity and new Eco-system play for operators
5G Architecture
4 Innovate Future !!!
Core architectural transformation to support 5G Radio and emerging new use cases
© 2016 Nokia4
Telco Cloud 2.0 : Full-scale new
deployments, new segments, new applications/services
SW re-use also on ATCA platform and IT HW appliances
Mobile Packet Core: Support
installed base, hardware optimized bare-metal
Virtualized EPC: PoCs/trials, initial
commercial deployments
Mobile Packet Core SolutionSupport existing customers while evolving to Cloud EPC
IP Mobile Core
7750 SRMobile GW
9471 WMM
Evolved Packet Core
Flexi NG Flexi NS
Liquid Core
Flexi Cloud NG(limited)
Flexi Cloud NS
vEPC
VirtualizedMobile GW
Virtualized Mobility Mgr.
(limited)
Cloud Mobile GW Cloud MM
Cloud EPC
© 2016 Nokia5
Nokia Packet Core FootprintMarket Presence
240+Global Customer References
1,7 Bn+Global Subscriber base
140+EPC Customer References
#3 EPC Market Share
200+Mobile Gateway Customers
180+MME/SGSN Customers
© 2016 Nokia6 6
First deployments of virtualized EPC
First Deployments
o Multi-country cloud EPC renovation
o 2/3/4G consumer core
o vEPC for IoT core
o vEPC for Fixed LTE
o virtualized ePDG for VoWiFi
o vEPC for Private Mobile Radio core
© 2016 Nokia7
Mobile GW evolution
<Public>
© 2016 Nokia8
Mobile Packet Gateways - EvolutionBringing the best of two worlds together
Continued Support and Developmentfor installed base
VMG
SR-OS-MG Operating System for VNF & PNF 7750 SR MG based PNF
<Confidential>
Key Feature Porting /Upgrade
Path
Virtual Flexi-NG
Flexi-NG
7750 SR MG
Cloud MG
Stateless ControlCloud DB
Separation of Control and Data
Planes
© 2016 Nokia9
Nokia Mobile Gateway Multi-Functional GW for 2G/3G/4G and Wi-Fi Services
Wi-FiAccess Point
NON-3GPP access
(WI-FI)
SIM & SIM-less
UEs
Node B / eNodeBSmall Cell
2G/3G/4G
7750 SR Mobile GW
cMG
AAA HSS/HLRMME/SGSN PCRF OCS/OFCS
Evolved packet core
TWAG
ePDG
SGW AAA
Charging
DPI/NAT/IPsec
Lawful Intercept
3GPP Integration
Co
mm
on
Fu
nctio
ns
PGW/GGSN
PCEF
IMS
CDN
Enterprise
DatacenterInternet
Mobile backhaul
SSG
A single platform spanning all Radio Access, leveraging common functions
Supports range of mobile gateway functions: GGSN, S-GW, P-GW, ePDG, TWAG, SSG (TDF)
© 2016 Nokia10
Virtualized Mobile Gateway
VMG v1 is already built in support of a cloud architecture
Life vEPC/v-ePDG deployments across all regions for consumer, M2M and VoLTE/VoWiFi applications
MG-VM: 20Gbps non DPI throughput, 10Gbps DPI throughput, 30k tr/s, 4M sessions, 8M bearers, 1M IPsec tunnels (vePDG)
http://www.lightreading.com/ethernet-ip/new-ip/validating-nokias-ip-routing-and-mobile-gateway-
vnfs/d/d-id/720902
© 2016 Nokia11
vMG Appliances
• Next step for EPC evolution with future proof cloud SW and IT x86 HW for customers, which are not cloud ready securing investments for future cloud evolution
Small vMG appliance:20/10Gbps, 2M sessions
Large vMG appliance:160/80Gbps, 16M sessions
Feature Candidates for 9.0r1
© 2016 Nokia12
cMG: Impact on Network Architecture- cMG instance is managed as single S/PGW node
- No added overhead to manage individual VM
- No impact on existing network architecture
- Load balancer (LB-VM) allows hiding internal VM topology from external network
- GW instance is represented by single IP address
- No impact on S1, S11, S5, Gx, Gy, S6b, RADIUS etc
OAM/Management Network
Router
OAM-VM
OAM-VM’
MG-VM-1’
MG-VM-2
MG-VM-1
MG-VM-2’
LB-VM-2
LB-VM-1
Internal Data
Network
Internal Control
Network
Active
Active
Standb
y
Standb
y
Active
Standb
y
Active
Active
cMG
Router
Loopback-allS1u loopback
S5 loopback
S11 loopback
Gx/Gy loopback
MME
PCRF
OCS/OFCS
eNBinterface IP1
interface IP2
interface IP3
interface IP4Inte
rna
l P
riv
ate
Ne
two
rk
System IP
© 2016 Nokia13
Call Processing VM
Many virtualized solutions lack needed flexibility for cloud readiness
Inflexible resiliency models Inflexible capacity growth and deployment models
Inflexible use of DC resources
• Subscriber/device pinned to VM even when not active
• DP and CP resources co-located, and scaled simultaneously
• 1+1 Redundancy implies that 50% of the capacity is waiting for failure to occur
CP
DP
“X“ TPS“Y“ Bearers“Z” Sessions
“A” GB of forwarding capacity
CPVM
Ctrler VM
Ctrler VM
CPVM CP
VM
CPVM CP
VM
CPVM CP
VM
CPVM CP
VM
LBVM
LBVM
CP-VM CP-VM CP-VM
Inefficient Resource Utilization Nokia VNFs built with N+K
VMs redundancy, Stateless VMs, Shared Data Layer
Nokia Decomposed VNFsWebscale VNF design based
on Stateless VMs and DB VMs
Nokia Innovative Solutions
© 2016 Nokia14
Cloud Mobile GW
Separates control plane processing and data plane forwarding VMs
Centralizeddata center
Distributed data center
v
CP
CP
DP
CP
DP
DP
Design innovations in Packet Core“Decomposed Core”
Independent CP/DP scalabilityFlexible network deployment optionsOptimizes latency requirementsReduces transport cost
Confidential
© 2016 Nokia15
Cloud Packet Corev“State efficient” VNF design with check-pointing
CP
CP
LB
U-3 State
U-2 State
Multiplexing increases VM utilization
Check-pointing
Multiplexing U-4 State
U-1 State
U-4 State
U1-M1U2-M1U3-M1U4-M1U4-M2
Design innovations in Packet CorePatent pending “Web scale” design
Mobile GW Mobility Manager
Optimal resource utilizationFlexible redundancy schemesFlexible scale out and scale in
Confidential
© 2016 Nokia16
Cloud Packet Corev
Design innovations in Packet Core“Shared data layer”
Sharing of data across many stateless or state efficient VNFs
Stores Virtual Machine State(subscriber and session data)
Simplifies VNF design
Delivers deployment and resiliency flexibility
Enables data analytics for monetization, network usage and failure scenarios
Shared data layer
Mobile GW MME
VM VM VM VM VM VM
Nokia in-memory RTDB
API
Data exposure
Analytics (Data monetization …...)
Mobile GW Mobility Manager
Confidential
© 2016 Nokia17
Cloud Mobile Gateway (2017)
Distributed Data Plane
Distributed Session
DB(Geo-redundant )
Edge data center
LB DPDP
Edge data center
LB DPDP
Edge data center
LB DPDP
Edge data center
LB DPDP
Central data center (Region 1)
LB
CP
DP
CP CP CP CP CP
DP DP
Stateless VMs
Subscriber/PDN Session State
Subscriber/PDN session can
be served by any VM,
independent of location of VM
N:K Redundancy Central data center (Region 2)
LB
CP
DP
CP CP
DP
© 2016 Nokia18
SR-OS-MG for 7750 MG and Cloud MGRelease plans
4/16
10/16
11/15
3/17
9/17
limited availability (CP/DR4) general availability (C5/DR5)ready for offering (C3)
Available 8.0r1
Available 8.0r3
Committed 8.0r7
Committed 9.0r1
Under Study 9.0r5
2015 2016 2017
TWAG Open SSID, SSG
IMS combo S/PGW
TWAG Closed SSID, VMware, Separate MG-CP and MG-DP VM demo
NB-IoT, ePDG updates, Dynamic Experience Management GW
Separate MG-CP and MG-DP VM / Statel efficient processing
Product Releases Release Information
© 2016 Nokia19
MME/SGSN evolution -
Cloud Mobility Manager
<Public>
© 2016 Nokia20
MME/SGSN EvolutionBring the best of the two worlds together
Cloud MME/SGSN
vFNS
9471 WMM
Flexi-NS
WMM/VMM
Upgrade path
Stateless ControlCloud DB
Dynamic Cloud Operations
Flexi-NS as Physical
<Confidential>
VMM Upgrade path
CMM on ATCA
© 2016 Nokia21
Advanced Cloud Native Design
MME/SGSN
IPDS (N+1)
NECC (2N)
ESPS(N+)
OAM
Packet Processing Service (PAPS)SGSN 2/3G Mobility & Session mgmt service
Cloud Database (DBS)Open database technology for high capacity database solutions
IP Director Service (IPDS)Elastic / scalable transaction load balancing, forwarding and i/f aggregation
IP Packet Processing Service (IPPS)3G User plane handling
Network Element management (NECC)OAM, business logic, Open API and centralized functions
Event Stream Processing Service (ESPS)Event broker, time series event database and event processing engine
LTE 3G 2G
CPPS(N+)
PAPS(N+)
DBS(N+)
Core
Control Plane Processing Service (CPPS)MME 4G Mobility & Session mgmt service
IPPS (N+)
CMM common
SGSN only, CMM 17.5
MME only
Legend
OAMplane
DBlayer
Transactionlayer
LBS/UPlayer
CMM Multi-layer architecture
1) Split OAM into static management and dynamic analytics engine
2) Split Call Processing into separate MME and SGSN VMs
3) Split Call Processing into Stateless Transaction and DB layers
22 © Nokia 2016
SDL for MMEEvolution towards Shared Data Layer
FNS Cloud 16
IPDS (1+1)
NECC (2N)
ESPS(N+)
OAM
LTE
CPPS(N+)
MMDS(N+)
Core
cMM 17
IPDS (1+1)
NECC (2N)
ESPS(N+)
LTE
CPPS(N+)
DBS(N+)
Core
Stateful
Stateless
cMM 18
IPDS (N+)
NECC (2N)
ESPS(N+)
LTE
CPPS(N+)
DBS(N+)
Core
DBaaS/
SDL
Geo-redundant
Stateful
Stateless
OAM OAM
PAPS(N+)
IPPS N+
PAPS(N+)
IPPS N+
DBS VNF
Alternative
database
solutions
© 2016 Nokia23
High Level Roadmap
• Commercial Cloud MME VNF (Openstack))
• Multi-layer architecture• New OAM solution• Single Load Balancer x1
• MME Commercial Capacity • System capacity 400k msg/sec• SR-IOV/DPDK performance• Duplex Internal LAN
• 3GPP Rel12 IoT featues• S11-U • Attach w/o PDN
• Commercial Triple Access SGSN/MME VNF
• CMM on WMvare• MME on ATCA Hardware• Geo-redundant Subscriber Service
restoration over MME pool
• SGSN Commercial Capacity (20 PAPS)• High Capacity 3G user plane with
DPDK
• Extended DRX cycle (eDRX) • High Latency Communication (HLCom)
• S1U Optimization• Switching of data transport between
CP and UP
• Appliance CMM on AirFrame• SGSN/MME on ATCA Hardware• Geo-redundant Subscriber Service
restoration over MME pool • SDL base Geo-Redundancy – PoC• Multiple Load Balancers x4
• Capacity increase up to 1600k msg/s• SGSN Capacity x2 with 40 PAPS
• Key Feature Parity across portfolios• T6a/SCEF • Bearer activation without SR• Group service ID basis support of IoT
capabilities• Décor based network slicing
CMM 17 (03/2017) CMM 17.5 (07/2017) CMM 18/18.5 (03/2018)
3GPP Feature set
Performance and capacity
confidential
© 2016 Nokia24
Service evolution
<Public>
© 2016 Nokia25
Cell Optimized TCP Stack (TCPW)
Sender: TCP Westwood Addresses Buffer bloating Reduces overall RTT Better handling of packet drop due to interference
/error Retransmits are handled locally, without invoking server. WEB optimizer: initial CWIND =10 (default)
WAN optimized TCP stack (New Reno)
Advertise large RWIN. Adjust RWIN dynamically if/when buffer resources
are not available/reduced. Immediate ACKing. Fast Retransmit/Fast Recovery
Implementation of AA for TCP OptimizationCell and WAN optimized TCP Stacks
© 2016 Nokia26
Hybrid access options – higher reliability and more bandwidth
Single Gateway SolutionHybrid access enabler
MP-TCP proxy
© 2016 Nokia27
PCRF
1.
Co
ng
est
ion
no
tifi
cati
on
2.
Sp
eci
fic
Pe
r-su
b,
pe
r-a
pp
C
on
tro
l.
3.
Co
ng
est
ion
Re
lieve
d N
oti
fica
tio
n
4.
Re
mo
ve p
er-
sub
, p
er-
ap
p, p
er-
cell
con
tro
l
GGSN/PGW/SSG(with AA)
SGW
Detailed reporting
Gx/Sdinterface
• Nokia integrated solution RAN to Core PGW/GGSN/SSG for congestion detection
– Location Aware Congestion Control (CC)
– Subscriber Aware CC
– Tier sensitive
– Probeless
Dynamic Experience Management Intelligent Congestion Control
Device Application performance
Per-sub, per-app, per-cell site
Airtime exhaustion
Encode cell location and congestion status within TCP option header
Decode and remove cell location and congestion status from TCP option header
CEA
DEM
• Improved QoE for specific subscribers and/or applications under congestion
• Virtual capacity gain
© 2016 Nokia28
IoT Low Power Wide Area (LPWA) technologies
NB-IoT(Rel. 13)
eMTC (LTE-M)
(Rel. 13)EC-GSM(Rel. 13)
5G(targets)
<15 km164 dB
<10 km156 dB
<15 km164 dB
<12 km160 dB
<30 kb/s <1 Mb/s 10 kb/s <1 Mb/s
Licensed spectrum
<12km160 dB
<10km169 dB
<100 b/s < 50 kb/s
Unlicensed spectrum
Improved coverage, ultra-low device cost, low device power consumption, support for massive number of low throughput devices, low delay sensitivity and optimised network architecture.
© 2016 Nokia29
Nokia IOT Core Roadmap
Signaling reduction • TAU reduction for Stationary IoT devices
• Service-based paging LPA• Long inactivity timer in GW
Overload control • DDN throttling for LPA• UE Back-off timer for LPA • GTP overload control• Gx/Gy overload control
• Diameter Routing Message Priority (DRMP) in PGW
• Diameter overload control• APN based OLC• DRMP in MME
Resource optimization
• Coverage Enhancement Paging (CAT-M)
• UE Power Saving Mode • eDRX• HLCOM in MME
• HLCOM in SGW
Small data transmission
• LTE attach wo PDN con.• CP CIoT EPS Opt. for IP• ROHC for small IP data• Non-IP PDN with SGi tun.
• Switching of data transport between CP/UP
• User Plane CIoT EPS Optimizations
• Non-IP data via SCEF• Non-IP data via Restful API
Enhanced core operating model
• State-efficient processing with cloud DB in MME
• Separate CP and DP VM in S/PGW – demo
• PCMD in MME & S/PGW
• Geo-Redundancy -replication of DBS record at alternate MME
• Separate CP and DP VM in S/PGW – GA
• State-efficient processing with cloud database in GW
• DECOR
2016-4QMME CMM R17.0 - S/PGW
R8.0
2017-1QMME CMM R17.0 -
S/PGW R9.0
2017-2QMME CMM R17.5 -
S/PGW R9.0
2017-4QMME CMM R18.0 - S/PGW
R9.0
Feature Candidates
© 2016 Nokia30
Support for all Mobile Packet Gateway
variants
High Performance data plane and control plane
Rich set of IP networking and
service capabilities
Differentiated Attributes for Mobile Packet Core
Agile operations and life cycle management
based real time scale-in and scale-out
Rich set of redundancy and failure protection
mechanisms –N:K; 1:1, N+ & Geo Red
Control Plane – Data Plane separation for
deployment flexible and low latency
Unique and differentiated functions such as Hybrid Access
Web-scale State Efficient Call Processing using Shared Data Layer
framework
Rich Feature Set
High Performance
Cloud Centric Architecture
High Performance Integrated Capabilities
such as DPI
© 2016 Nokia31 <Public>
Thank you!
© 2016 Nokia32
Copyright and confidentiality
<Public>
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