1. Handovers with Broadcast Technologies in 802.21
September 2008
doc.: IEEE /XXXXr0
November 2008
Handovers with Broadcast Technologies in
Date:
Authors:
Burak Simsek, Juan Carlos Zuniga

2. September 2008
doc.: IEEE /XXXXr0
November 2008
Background
IEEE 802 Tutorial on Handovers with Broadcast Technologies given during July‘s Denver meeting
Broadcast networks need a bidirectional technology for uplink channel
Technology‘s State of the art: 3GPP + DVB/ MediaFLO/ DMB
Covers partially uplink channel problems and the coverage problems
Commercial products capable of rudimentary HO between 3GPP-DVB-H
Indoor DigitalTV coverage problem exists in Europe
DVB Project looking at WLAN as a solution to the problem
New Task Group to focus on Handovers with Broadcast Technologies
Soon to be approved
Burak Simsek, Juan Carlos Zuniga

3. DVB Indoor Coverage Costs
September 2008
doc.: IEEE /XXXXr0
November 2008
DVB Indoor Coverage Costs
* Minimal Cost Planning of DVB-H Networks on Existing Wireless Infrastructure David Gomez-Barquero; et al.
Burak Simsek, Juan Carlos Zuniga

4. DVB-T in NRW Germany November 2008 September 2008
doc.: IEEE /XXXXr0
November 2008
DVB-T in NRW Germany
Burak Simsek, Juan Carlos Zuniga

5. Proposed Solution for Indoor Coverage Problem of DVB
September 2008
doc.: IEEE /XXXXr0
November 2008
Proposed Solution for Indoor Coverage Problem of DVB
Use WLAN indoors and enable handovers between and DVB
Solution may be relevant to work in IEEE aa
Burak Simsek, Juan Carlos Zuniga .

6. September 2008
doc.: IEEE /XXXXr0
November 2008
Handover Scenarios
While watching TV in the train/bus back to home (DVB-H)
Entering the bus/train station there will be DVB coverage problems but WLAN could be available
Moving in city centre with high buildings, in tunnels, in underground parking, etc. all cause coverage problems, so handover to WLAN
While listening to radio over a broadcast technology (DVB-T)
Entering into a building with WLAN coverage and no mobile DVB
While watching a film with DVB-T at home with a special antenna (i.e. no mobility)
DVB network decides to move the service to WLAN because not enough people are interested in that particular film (no broadcast any more)
Other...
Burak Simsek, Fraunhofer Inst. et al.

7. Some Problem Areas to be Analysed
September 2008
doc.: IEEE /XXXXr0
November 2008
Some Problem Areas to be Analysed
Synchronization
Broadcast networks are closed, mostly one hop networks
WLAN option is in most cases IPTV in an open network
In cases where network operator is the same the problem is significantly mitigated
Not necessarily IEEE 802 Problem…
Coexistence?
Other???
Burak Simsek, Fraunhofer Inst. et al.

8. September 2008
doc.: IEEE /XXXXr0
November 2008
Next steps
PAR/5C on Handovers with Broadcast Technologies soon to be approved (802.21b?)
DVB Project will start a Work Item on the subject in November 2008
DVB Project has decided to consider as the candidate technology for enabling these handovers
Home entertainment + mobile Services: Especially for operators handover between and DVB is important
Many companies have broadcast units
Collaboration between aa and (b?) would be benefitial for both groups
Burak Simsek, Juan Carlos Zuniga .

9. Q&A? November 2008 September 2008 doc.: IEEE 802.11-08/XXXXr0
Burak Simsek, Fraunhofer Inst. et al.

10. Burak.Simsek@fokus.fraunhofer.de JuanCarlos.Zuniga@interdigital.com
September 2008
doc.: IEEE /XXXXr0
November 2008
Thanks!
Burak Simsek, Juan Carlos Zuniga