lte world summit 2012 julius mueller fraunhofer-fokus-tues_focus-day

Fraunhofer FOKUS Competence Center NGNI

Julius Müller, Thomas Magedanz [email protected] www.av.tu-berlin.de [email protected] 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


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


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


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


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


Introduction



Evaluation

Summary

Q&A

Agenda


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



Qualitative(l) and Quantitative(n) Influences

Generic Adaptive Resource Control (GARC)


Extending 3GPP PCC with Generic Adaptive Resource Control (GARC)

Fig.1: Access Network Heterogeneity Fig. 2: Policy Decision Influences


Introduction



Evaluation

Summary

Q&A

Agenda


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


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

http://www.openepc.net/


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


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


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


Introduction



Evaluation

Summary

Q&A

Agenda


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


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


Introduction



Evaluation

Summary

Q&A

Agenda


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.


Introduction



Evaluation

Summary

Q&A

Agenda


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.


Questions ???

3nd FOKUS Future Seamless Communication Forum (FFF)

Berlin, Germany, November 15-16, 2012

Visit our Website: www.fuseco-forum.org/

[email protected]


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


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

lte world summit 2012 julius mueller fraunhofer-fokus-tues_focus-day

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