Ambient Networks Media Delivery in the 3GPP Framework

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Ambient Networks Media Delivery

in the 3GPP Framework

Author: Outi KoskiSupervisor: Heikki HämmäinenInstructor: Andreas Schieder

Ericsson Eurolab, Aachen, Germany

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© Ericsson AB 2007 Outi Koski 2007-03-262

Contents

Ambient Networks– Media Delivery

Thesis Tasks IMS Concept development Concept implementation

– Feasibility Study

Conclusions Future Work


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Ambient Networks

A project for mobile and wireless systems beyond 3G Designs an affordable and scalable mobile

communication network, that opens up new ways to communicate, for billions of people and devices

Aims at the definition of a ubiquitous Control Space (Ambient Control Space, ACS) applicable for various types of networks

Promotes network intelligence and the optimal use of network resources. Provides ways to overcome technology differences and operator boundaries


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Ambient Media Delivery

Media Server

Media Client

Media Port

WLAN

WLAN3G

3G


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Network AbstractionsConnec

tivity

Abstra

ctio

n

Connectiv

ity

Beare

rAbst

ract

ion

Ambient Network A

Flow Transit

Node

BearerIntermediary

Ambient Network B

Path

Flow

Flow EndpointFlow

Endpoint

Link

Applicat

ions

Application SessionApplication

BearerEndpoint

AmbientNetworkInterface

BearerEndpoint

Source: Ambient Networks


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Ambient Media Delivery Principles

The network complexity is hidden from the users and applications with abstractions

The network provides the routing, content adaptation and caching which meet the user needs

The routing is adapted according to the changes in the network

The complexity increases only in the transcoders (media ports) and not in the end devices


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How to realize these concepts?

?

The Ambient Networks project provides concepts without relations to the current network architecture


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Thesis tasks

Literature Study– Ambient Networks– Media Delivery– IP Multimedia Subsystem

Concept Development– Ambient Networks Media Delivery in the IMS

Concept Implementation– Assembly of the IMS testbed– Feasibility Study

Evaluation of the Results


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IMS Architecture

A part of the 3GPP Network Architecture

Designed to deliver IP multimedia services for mobile phone users


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Developed Service Concept - AN

Media Server

Media Client

Media Port

Media Client

Media Client

1. Media is uploaded to the server

2. Media is delivered to the receivers

3. Adaption is used when needed


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Developed Service Concept - IMS

Application Server

UE

P-CSCF

S-CSCF

P-CSCFMRF

ControlData

UE

UE


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Concept Principles

The research in this thesis concentrated only on the Control Part of the solution

All signaling is based on SIP Sender uploads the media to a server Uploaded content is identified with a Media Stream URI The possible receivers are notified about the content The receivers may initiate a download sequence with

the Media Stream URI


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Signaling example - Upload


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Feasibility Study

The possible components for an IMS testbed were searched

A combination of Fokus Open Source IMS Core and Ericsson Service Development Studio was used

Unfortunately no suitable MRF emulation was found A MRF emulation will be developed and added in the future

The control part of the model and its feasibility was studied


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The Implementation

WLAN

Client

Application Server

IMS Core:- S-CSCF- I-CSCF- P-CSCF- HSS

bind for DNS Own contribution:

Configuration of the system, Software development for the Client and the Application Server, Service Trigger for the HSS


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Conclusions For the implemented parts of the Ambient Networks

Media Delivery Concept, IMS as an implementation base works

The research has to be continued to be sure of the whole concept

The platform for the client and server solutions was not found as flexible as needed

– Difficulties not related to IMS standards but internal functions of the platform

The case MRF – No flexible emulations available– The concept of MRF (control, capabilities) still evolves in

3GPP


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Future Work

Step 1: Add the user plane Step 2: Add the MRF Step 3: Include more IMS domains Step 4: Include other access types

This thesis was the first step of a bigger project


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Ambient Networks Media Delivery in the 3GPP Framework

Documents