lte world summit 2012 julius mueller fraunhofer-fokus-tues_focus-day
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Fraunhofer FOKUS Competence Center NGNI
Julius Müller, Thomas Magedanz julius.mueller@tu-berlin.de www.av.tu-berlin.de thomas.magedanz@fokus.fraunhofer.de www.fokus.fraunhofer.de/go/ngni
May 22nd – LTE World Summit Focus Day / Master Classes, LTE World Summit Focus Day – Handling the surge in signaling
traffic, Barcelona, Spain, May 22-24, 2012
The Evolution of Service Control Mechanisms in
Next generation Networks towards Future Internet
www.ngn2fi.org supported by www.g-lab-deep.de
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
Global Data Traffic Forecast
Mobile data traffic increase is parallel to the increase in number of devices
The device capabilities are spanning
From: Simple sensor nodes
To: High Definition video cameras
The comm. requirements are spanning
From: a “four byte” fire alarm
To: continuous real-time video streaming
from video camera
Only M2M in 2015 as much as all the data traffic today
Fraunhofer FOKUS Competence Center NGNI
OTT vs. Telco Networks & Platforms – APIs/IMS/EPC/MTC as last resort?
Classic Telco Voice Evolution
Over the Top Multimedia Services Evolution
IP
CS
NGN
All IP
SDP
EPC IMS
All IP Networks will pave the road for Over the Top (OTT) Application Evolved telecom platforms may provide revenue potentials via Service
Gateways (APIs) on top VoIP/RCS (IMS), Maschine Type Communication (MTC) and Smart Bit pipe approaches (EPC)
RCS will have to compete with Unified Communications (UIC) in OTT area
VoIP
IN
NGN
IM
Communities Future
Internet
I. of Services I. of Things Net. of the
Future
2010 ??? 2006
Over the Top
Apps
Cloud Services
VoLTE
MTC
UIC
RCS
Fraunhofer FOKUS Competence Center NGNI
Mobile Network Architecture Evolution
Access
Circuit
Switched
PSTN
Access
Circuit
Switched
PSTN
Packet
Switched
IP
Access
Circuit
Switched
PSTN
Packet
Switched
IMS
IP
Access
Packet
Core
IMS
IP
PSTN
EPS (LTE/EPC) 3G / IMS Evolution 2G / GPRS / EDGE Evolution 2G GSM
1991 2000 2004 2008
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
State-of-the-Art: QoS in Fixed and Mobile Next Generation Networks
Mobile Networks: GPRS, UMTS
Guaranteed CS voice and PS data
Mobile Networks: LTE
9 QCI for real-time and non-real-time communication
Mobile Networks: WiMAX
IEEE 802.16 – 5 QoS classes
Wireless Networks: WiFi/WLAN
IEEE 802.11e: Enhanced distributed channel access (EDCA)
Open Networks: OpenFlow
Slice Concept
Fixed Networks: DSL, Cable, Fiber, etc.
2 QoS classes: Voice RTP traffic prioritized over any other data traffic
Challenge:
Multi terminal, access- and core network support
Flexible, individual and dynamic QoS adjustment
Fine granular QoS on-demand
Converged Quality of Service (QoS) control in NGN and beyond
Approach
Extending the 3GPP Policy Control and Charging Architecture
Fraunhofer FOKUS Competence Center NGNI
Qualitative(l) and Quantitative(n) Influences
Generic Adaptive Resource Control (GARC)
Fraunhofer FOKUS Competence Center NGNI
Extending 3GPP PCC with Generic Adaptive Resource Control (GARC)
Fig.1: Access Network Heterogeneity Fig. 2: Policy Decision Influences
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
The EPC is a multi-access core network architecture based on the Internet Protocol (IP) common for:
3GPP access networks (LTE-A, LTE, HSPA+, UMTS, GPRS)
Non-3GPP access networks
Trusted networks (cdma2000, WiMAX)
Un-trusted networks (WiFi)
EPC provides connectivity to IP service domains
IMS
Internet or other (M2M, Cloud, P2P etc.)
The enhanced IP connectivity features include:
Authentication and authorization
Secure communication
Transparent mobility management
Connectivity management support
Policy based QoS and charging
3GPP Evolved Packet Core (EPC)
IMS Internet
3GPPAccess
Trusted Trusted / Un-trusted
3GPP Access
Non-3GPP Access
Evolved Packet Core
Fraunhofer FOKUS Competence Center NGNI
What is the FOKUS OpenEPC Platform ?
In future mobile broadband communications multi access network support (incl. fixed & cable) and multi application domain support (OTT, IMS, P2P, M2M, Cloud etc.) will become key for multimedia service delivery
Based on the success of the Open IMS Core, Fraunhofer FOKUS is developing a NON-OPEN SOURCE EPC platform, enabling academia and industry to
integrate various network technologies and
integrate various application platforms
into a single local testbed, thus lowering own development costs
This platform can be used to perform R&D in the fields of
QoS, Charging, Mobility, Security, Management, Monitoring
OpenEPC implemented features are aligned with 3GPP
specifications:
adaptable to different deployments
extensible to specific research needs
configurable
highly performance
More information: www.OpenEPC.net
Fraunhofer FOKUS Competence Center NGNI
OpenEPC includes the main functionalities of 3GPP's Evolved Packet Core (Release 10)
The principles of standard alignment, configurability and extensibility have been respected in the overall architecture and in the specific components implemented
In Rel. 3, all the 3GPP EPC components are available supporting features which include:
Seamless Mobility Support (GTP, PMIP)
Core network support for LTE and 3GPP accesses
Subscription based procedures for:
AAA procedures for 3GPP and non-3GPP accesses
Always Best Connected
Policy and Charging Control
Mobile Equipment support for EPC
PLEASE NOTE: OpenEPC does not claim 100%
standard compliance, but allows for early prototyping
OpenEPC Rel. 3
Fraunhofer FOKUS Competence Center NGNI
Functionality:
Subscription based auth. and authoriz.
Receiving requirements from services
Policy based resource reservation
Online and offline charging
Components:
PCRF – Policy and Charging Rules F.
SPR – Subscription Profile Repository
AF – Application F.
PCEF – Policy and Charging Enforcement F.
BBERF – Bearer Binding and Event Rules F.
OCS/OFCS – Online/Offline Charging System
TDF – Traffic Detection Function
EPC with Policy and Charging Control for non-3GPP Accesses
HSS (SPR)
Application Function Rx
Gx
Gxx
Sp
IP Connectivity
Data Path
Auth. & Authoriz.
3GPP Access Mgmt
Policy and Charging
OCS
OFCS
Gy
Gz
TDF
Sd
Untrusted Non-3GPP
Trusted Non-3GPP
ANGw (BBERF)
PDN GW (PCEF)
Gxx
AAA Server
ePDG (BBERF)
PCRF
IP Connectivity
Fraunhofer FOKUS Competence Center NGNI
Extending 3GPP PCC Architecture (ROAMING)
UE pushes QoS-request via Rx# at the GARC
New reference point: Rx#
New functional entity: GARC
Mueller J., Magedanz T., Corici M., Vingarzan D., 'UE & Network Initiated QoS Reservation in NGN and Beyond', Network of the Future (NOF), 2011 International Conference on the Future Internet, Issue Date : 28-30 Nov. 2011, On page(s): 62 - 67, Print ISBN: 978-1-4577-1605-8, DOI: 10.1109/NOF.2011.6126684Paris, France, 28-30 Nov. 2011, www.network-of-the-future.org, http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6126684
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
OpenFlow Network Architecture
OpenFlow – An Overview
Definition of OpenFlow
“OpenFlow: a way for researchers to run experimental protocols in the networks they use every day.
OpenFlow is based on an Ethernet switch, with an internal flow-table, and a standardized interface to add and remove flow entries.” [OFKe08]
Open Flow virtualizes networks through separating control and switching functionality by extracting the routing decision point from the switch into the controller.
OpenFlow consists mainly of five elements
OpenFlow Switches: Separation between Switch and Routing/Forwarding functionality.
OpenFlow Controller: Routing decision point.
OpenFlow Protocol (OFP): Securely (SSL/TCP) connects OpenFlow Controller and OpenFlow Switches
FlowVisor: Transparent network slicing.
Hosts: User endpoints or attached devices.
OpenFlow Controller
OFSwitch
OFSwitch
Host
OFSwitch OFSwitch
OFP
FlowVisor
Host
Data
Fraunhofer FOKUS Competence Center NGNI
Generic Adaptive Resource Control (GARC) for OpenFlow
GARC: 3GPP Policy Charging Control extension for heterogeneous access and core networks
[Rx#] Generic QoS demands of
Network aware applications
Network operator policies
Service provider rules
[Gx#] NOX – GARC Interface
NOX specific messages: JSON via TCP
Request network monitoring data and statistics
[Gxx#] GARC – Switch Interface
Flow-to-Queue mapping over switch specific DPCTL messages
[OFP] Controller – Switch Interface
OpenFlow Protocol providing standard OpenFlow Controller Interface
OpenFlow Network Architecture
OpenFlow Controller
OpenFlow Switch
Host
OFP
Host
Data
Generic Adaptive Resource Control
(GARC) Gx(x)#
Gx# Gxx#
Rx#
Rx#
Network aware apps / Network Operator Policies /
Service Provider Rules
OFP
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
Validating the QoS Support within OpenFlow
[t0] Start experiment with four independent TCP flows without any QoS class label.
[20] Assign each flow to one of four QoS classes supporting minimal bandwidth guarantees.
[t80] Change QoS class mapping of flows.
[140] Remove QoS classes from flows. TCP flows swing into a stable bandwidth level.
[t180] End of experiment.
Fraunhofer FOKUS Competence Center NGNI
Introduction
Extending the 3GPP Policy Control and Charging Architecture
Use case 1: Evolved Packet Core (EPC) Use case 2: Open Networks - OpenFlow
Evaluation
Summary
Q&A
Agenda
Fraunhofer FOKUS Competence Center NGNI
Summary
Video streaming dominates the overall data traffic.
Revenue gap between expenses and income is already there.
Network operators are loosing network and service control, customers and revenues to Over-The-Tops.
Manage user plane traffic when RAN congestion occurs using converged and adaptive QoS control functionality in All-IP networks.
Generic Adaptive Resource Control (GARC) extends the 3GPP PCC Architecture.
GARC enables converged, adaptive and generic network resource control in NGN and beyond.
Fraunhofer FOKUS and its related TU Berlin department are working in the field of NGNs since many years and have developed adequate tools and technology playgrounds which are used in major academic and industry projects.
Fraunhofer FOKUS Competence Center NGNI
Questions ???
3nd FOKUS Future Seamless Communication Forum (FFF)
Berlin, Germany, November 15-16, 2012
Visit our Website: www.fuseco-forum.org/
Julius.Mueller@tu-berlin.de
Fraunhofer FOKUS Competence Center NGNI
Key Academic Conferences supported by NGNI/AV
Future Seamless Communications Forum
www.fuseco-forum.org
GI/KUVS Next Generation Service Delivery Platform Expert Talk series
www.KUVS-NGSDP.org
IEEE Open NGN and IMS Testbed (ONIT) Workshop series
www.onit-ws.org
ICST Tridentcom Testbed conference series
www.tridentcom.org
DAAD University Future Internet (UNIFI) Workshops
www.daad-unifi.org
Fraunhofer FOKUS Competence Center NGNI
3nd FOKUS Future Seamless Communication Forum (FFF) Berlin, Germany, November 15-16, 2012
Theme: “Convergence of Human-to-Human and Machine-to-Machine Communications within Emerging Open Smart City ICT Infrastructures – Using Open APIs, RCS, IMS, MTC, EPC, and LTE as Enablers for Emerging Future Internet Application Domains”
FUSECO FORUM is the successor of the famous FOKUS IMS Workshop series
FFF 2010 attracted 150 experts from 21 nations
FFF 2011 was attended by around 200 experts from 30 nations
See www.fuseco-forum.org/2012 for details
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