DAIDALOS /11 IEEE MEDIA INDEPENDENT HANDOVER DCN: 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.

DAIDALOS /11 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 IEEEs name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEEs 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 Section 6.3 of the IEEE-SA Standards Board Operations Manualhttp://standards.ieee.org/guides/opman/sect6.html#6.3 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 IEEEs name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEEs 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 Section 6 of the IEEE-SA Standards Board bylawshttp://standards.ieee.org/guides/bylaws/sect6-7.html#6

DAIDALOS /11 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,…

DAIDALOS /11 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

DAIDALOS /11 SUMMARY Berlin Munich Frankfurt 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 (Source Deutshce Telekom) Interim target scenario

DAIDALOS /11 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… SUMMARY Mobile TV/Radio Mobile TV with synchronized, auxialiary data stream Interactive mobile TV File Download Require bidirectional channels

DAIDALOS /11 Content Provider Content Aggregator Mobile Broadcast Service Provider Mobile Network Operator TV GuideFile Content Service Meta Data Content Creation IPDatacast Management Shop Front End Service Application Management DRM Playout Management Live Content Broadcast Platform IPTV Platform DVB-H Broadcast Network IEEE Network Content Creation OMA BCAST Mobile Terminal Broadcast Operator Src: Télédiffusion de France (media&broadcast)

DAIDALOS /11 DVB-H Interest and Timeline Initial presentation to WG made in Novembers 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 Januarys 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

DAIDALOS /11 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 Forum Teleconference held in with Prof. Reimers (DVB Chair Technical Module ) in February 08 DVB Forum has assigned agenda time in Junes 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

DAIDALOS /11 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

DAIDALOS /11 Straw Poll Would you like to see the creation of an IEEE Study Group for supporting broadcast handovers? Yes 27 No 0 Abstain 8

DAIDALOS /11 Thanks For Your Attention

DAIDALOS /11 Back up slides

DAIDALOS /11 Service Discovery in DVB-H

DAIDALOS /11 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…

DAIDALOS /11 DVB-H Transport Structure Here are the IP streams TV Channels Broadcasters DVB-H Network Providers

DAIDALOS /11 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…

DAIDALOS /11 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

DAIDALOS /11 How to Locate IP Streams Elementary Stream Structure HeaderPayload 4 bytes 188 bytes HeaderPayload Header Sync byte Transport error indicator Payload unit start indicator Transport priority PID Transport scrambling control Adaptation field control Continuity counter Adaptation field Packet IDentifier

DAIDALOS /11 How to Locate IP Streams Finding True PID PAT (pid=0) A V D D1300 PMT (for pid=200) Service_id pmt_pid elementary_pid stream_type component_tag AAAGASDGJHGHMHSHAGAAAAAAAAAAA VJDGHDGHKGHKFGHKFGRTUWRTZWWRZ HGJDGHNVBNRSTHWRTHWRTHWRTHRTH GHSHGJJJFGDDDDDDDDDDDDDDDDDDD Multiplex Service Component elementary_stream (pid=1000) Program Association Table Program Map Table

DAIDALOS /11 1.Find NIT_actual of the tuned network 2.Find NIT_actual of the new network which includes INT link_descriptor 3.Find service ID of INT table of the platform we are interested in 4.Find the PID of the INT table for the PMT 5.Find the PID of the IP service (based on the IP Address) from INT 6.Find the PID of the IP Service for the PMT 7.Find PID of the elementary stream (IP Stream)

DAIDALOS /11 Parameters for Optimum Handovers with DVB-H ParametersSourceRemark cell_id TPS bitsUniquely cell identifier for DVB-T/H cell_list_descriptor NITTo announce cells and sub-cells of the DVB-H network cell_frequency_link_descriptor NIT To announce all frequencies used to transmit the TS within the DVB network original_network_id NITtypically allocated by DVB on a per country basis network_id NIT transport_stream_id PATIdentifies uniquely an TS within an original DVB network linkage_descriptor NITto announce INT service_id PMTIdentifies a DVB service component_tag Identifier for a component of a DVB service Platform_id INTidentifies an IP platform IP source/destination address INTIdentifies a single IP stream PID PAT/PMTIdentifier for component_tag

DAIDALOS /11 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

DAIDALOS /11 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