1. IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-08-0089-00-0000
Title: DVB-H Integration
Date Submitted: March, 2008
Presented at IEEE session #25 in Orlando
Authors or Source(s):
Burak Simsek (Fraunhofer Institute)
Juan Carlos Zuniga (InterDigital)
Peter Pogrzeba (Deutsche Telekom)
Teodor Buburuzan (Technical University of Braunschweig)
Patrick Stupar (NEC)
Michelle Wetterwald (Eurecom)
Michael Grigat (Deutsche Telekom)
Jens Mödeker (Fraunhofer Institute)
Andreas Sieber (IRT)
Abstract: This presentation summarizes DVB-H characteristics and describes the service discovery procedure of DVB-H.

2. IEEE 802.21 presentation release statements
This document has been prepared to assist the IEEE Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE
The contributor is familiar with IEEE patent policy, as stated in Section 6 of the IEEE-SA Standards Board bylaws < and in Understanding Patent Issues During IEEE Standards Development
IEEE presentation release statements
This document has been prepared to assist the IEEE Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE
The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE-SA Standards Board Operations Manual < and in Understanding Patent Issues During IEEE Standards Development

3. Summary DVB … A broadcast dedicated technology
DVB-H is based on DVB-T standard but designed for small, portable devices like Mobile Phones.
Optimized reception in mobile environments through new modulation and error correction mechanisms (better signal quality)
By the use of time-slices it is perfect suited for small, battery-powered devices
Advantages
Unlimited number of receivers
Up to 40 km coverage per transmitter
Around 20 AV streams with 300kbps
Hence an efficient technology for popular multimedia services
More than 80 manufacturers
Intel, Nokia, Motorola, Samsung, Alcatel-Lucent,…

4. Summary DVB supports IP since 2006 with IP Datacast
DVB IP Datacast is a Service Provisioning Framework designed to provide IP based services over DVB-H
Purchase and billing, service description, schedule and acquisition…
Developed by the DVB CBMS (Convergence of Broadcast and Mobile Services ) Working Group
This is the group IEEE should cooperate with
Chairman: Georges Martinez (Motorola)
Most active partners: Nokia, Motorola, Philips, Samsung, France Telecom, Siemens, Thomson, Expway, NDS…
There is a liasion to OMA BCAST
Prof. Reimers:
“In my capacity as Chairman of the Technical Module of the International DVB Project, I strongly support the inclusion of DVB-H in IEEE … It is clear that numerous companies are working on the integration of 3G networks and this additional DVB-H broadcast downstream into "hybrid" network structures. The IEEE would therefore be well advised to incorporate certain broadcast technologies in IEEE ”

5. Interim target scenario
SUMMARY
Interim target scenario
Should be realized until 2011
To cover 36 regions of Germany and some smaller areas
About 45% population coverage (36 Mio people)
A nation wide DVB-H coverage is not planned
Berlin
Frankfurt
Munich

6. Mobile TV with synchronized, auxialiary data stream
SUMMARY
Require bidirectional channels
Mobile TV with synchronized, auxialiary data stream
Interactive mobile TV
Mobile TV/Radio
File Download
TV/radio transmission
FTA (free-to-air) or encrypted transmission
H.264 streaming
TV with auxiliary data i.e. text or data elements for interaction
No synchronization of data elements with A/V stream
Time shifting
Rich media services with advanced interactivity
A/V stream includes additional data streams
Synchronization of data streams with A/V stream
User triggered download of any kind of content via broadcast
Ring Tones
Music
Maps
A/V clips
Games…

7. Mobile Terminal DVB-H Network IEEE Broadcast Operator Live Content
Provider
Aggregator
Mobile Broadcast Service Provider
Mobile Network Operator
TV Guide
File Content
Service
Meta Data
Content Creation
IPDatacast Management
Shop
Front End
Service Application
Management
DRM
Playout
Live Content
Broadcast
Platform
IPTV
DVB-H
Network
IEEE
OMA BCAST
Mobile Terminal
Broadcast Operator

8. DVB-H Interest and Timeline
Initial presentation to WG made in November’s 07 meeting
Hybrid Broadcast/Mobile Networks composed of 3GPP and IEEE technologies have significant financial advantages for all mobile network operators
Initial mobile TV services using hybrid networks in different countries have shown that customer acceptance is very high
European Commission declared DVB-H as the official standard of Europe for mobile broadcasting
IEEE is well in the place of enabling optimized cooperation of hybrid networks
Second presentation to WG made in January’s 08 meeting
Use cases for with DVB-H
DVB-H as all the other wireless technologies has Cos and Pros necessitating handovers
There are only minimal changes needed to integrate

9. DVB-H Interest and Timeline
Straw poll in January 08 meeting showed there is relevant work to be done in for DVB Handovers
21 yes, 1 no, 1 abstain
Motion accepted in January 08 to appoint Burak Simsek as the liaison between WG and the DVB Project Forum
Teleconference held in with Prof. Reimers (DVB Chair Technical Module ) in February 08
DVB Forum has assigned agenda time in June’s meeting for presentation
Technical Module (Chair Prof. Reimers … TU Braunschweig)
CBMS (Chair Georges Martinez … Motorola)
Mobility Task Group (Chair Gunther May … TU Braunschweig)
Juan Carlos Zuniga will be making the presentation
Liaison follows the presentation

10. Future Work Create a Study Group Purpose
To determine what work, if any, is necessary to enable DVB-H Handovers to other wireless technologies
Study group will consider
Handset, network and service provider input
Specific requirements in to support DVB-H handovers
Existing work in this area
Goals and Timeframe
Keep agenda time to a minimum and hold most discussions over and teleconferences
2 plenary cycles

11. Straw Poll
Would you like to see the creation of an IEEE Study Group for supporting DVB-H handovers?

12. Thanks For Your Attention

13. Back up slides

14. Service Discovery in DVB-H

15. Handover from X to DVB-H
Popular Multimedia Services, hence unidirectional
Handover is triggered by some means from X to DVB-H
What kind of information do we need in order to switch to the same IP Stream?
Without any prior information it is possible to have this information but takes too long…

16. DVB-H Transport Structure
DVB-H Network Providers
Broadcasters
TV Channels
Here are the IP streams

17. Scanning / Tuning Finding the network
Worst case: Whole Frequency scanning (e.g. 470MHz – 862MHz)
NIT_actual – NIT_other
Reduces the frequencies to be scanned to a specific list
If does not exits, either found frequencies are used or whole scan is carried on
For each found network, accomplish tuning
Search within transport stream if the service exits or not…

18. How to Locate Service Identify IP Streams
We should know what we are looking for in DVB-H language…
IP Platform: A set of IP/MAC streams and/or receiver devices managed by an organization
The IP/MAC platform concept allows for the coexistence of several non-harmonized IP/MAC address spaces on the same DVB network.
Two IP streams carry the same IP datagram stream if all the following conditions are true:
Source IP addresses are identical.
Destination IP addresses are identical.
IP streams are associated with the same IP platform.
Destination IP address is not in unicast range,
Multicast Addresses in DVB-H are globally defined
Need IP matching since IP addresses are different in IP Platforms…
From unicast/multicast to multicast

19. How to Locate IP Streams Elementary Stream Structure
Header
Payload
4 bytes
188 bytes
Sync
byte
Transport
error
indicator
unit start
priority
PID
scrambling
control
Adaptation
field
Continuity
counter 8 1 2 13 4
Packet IDentifier

20. How to Locate IP Streams Finding True PID
Program Association Table
Multiplex
Program Map Table
PAT (pid=0)‏
1 100
2 200
3 300
4 400
Service
Component
PMT (for pid=200)‏
elementary_stream (pid=1000)‏
10 A 1000
11 V 1100
12 D 1200
13 D 1300
AAAGASDGJHGHMHSHAGAAAAAAAAAAA
VJDGHDGHKGHKFGHKFGRTUWRTZWWRZ
HGJDGHNVBNRSTHWRTHWRTHWRTHRTH
GHSHGJJJFGDDDDDDDDDDDDDDDDDDD
pmt_pid
elementary_pid
stream_type
Service_id
component_tag

21. Find NIT_actual of the tuned network
Find NIT_actual of the new network which includes INT link_descriptor
Find service ID of INT table of the platform we are interested in
Find the PID of the INT table for the PMT
Find the PID of the IP service (based on the IP Address) from INT
Find the PID of the IP Service for the PMT
Find PID of the elementary stream (IP Stream)

22. Parameters for Optimum Handovers with DVB-H
Source
Remark
cell_id
TPS bits
Uniquely cell identifier for DVB-T/H
cell_list_descriptor
NIT
To announce cells and sub-cells of the DVB-H network
cell_frequency_link_descriptor
To announce all frequencies used to transmit the TS within the DVB network
original_network_id
typically allocated by DVB on a per country basis
network_id
transport_stream_id
PAT
Identifies uniquely an TS within an “original” DVB network
linkage_descriptor
to announce INT
service_id
PMT
Identifies a DVB service
component_tag
Identifier for a component of a DVB service
Platform_id
INT
identifies an IP platform
IP source/destination address
Identifies a single IP stream
PID
PAT/PMT
Identifier for component_tag

23. IP Matching
Platform_id and IP source/destination addresses must be available in case there is no PID available
Multicast IP addresses are uniquely defined, hence IP addresses can be saved before
ESG (Electronic Service Guide) of DVB-H provides IP Platform ID and IP Address of all available service…
MIIS can provide with the ESG similar data enabling faster IP Platform ID – IP address information acquisition

24. Handover Overview XDVB-H
In case service exists over DVB-H make handover decision
Else DAIDALOS could consider creating the service in case of demand, but currently DVB-H would not…(no .21 problem)
They target customized services as the next steps…
No resource availability check (avoid this)
Inform DVB Network about the handover complete (optional)
Inform WLAN Network about handover complete (optional)
Multicast leave can be synchronized with this information