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 SchiederEricsson
  Eurolab, Aachen, Germany

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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
3G
WLAN
3G
WLAN
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Network Abstractions
Ambient Network A
Ambient Network B
Application
Session
Application
Applications
AmbientNetworkInterface
BearerEndpoint
BearerEndpoint
BearerAbstraction
Intermediary
Bearer
FlowEndpoint
Flow Endpoint
Flow
ConnectivityAbstraction
Flow Transit
Node
Connectivity
Link
Path
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

• 2. Media is delivered to the receivers

Media Client

• 1. Media is uploaded to the server

Media Port
Media Client
3. Adaption is used when needed
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Developed Service Concept - IMS
ControlData
Application Server
UE
P-CSCF
UE
S-CSCF
P-CSCF
MRF
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
Client
IMS Core- S-CSCF- I-CSCF- P-CSCF- HSSbind
for DNS
Application Server
WLAN
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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