Convergence of Broadcast and Mobile Broadband. By Zahedeh Farshad December 12-13, 2017
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1 Convergence of Broadcast and Mobile Broadband By Zahedeh Farshad December 12-13,
2 2
3 Outline The state-of-the-art on the evolution of mobile and broadcast technologies The first approaches for the cooperation between mobile broadband and broadcast The definition of a joint solution within 5G The challenges of the definition of such a converged solution 3
4 Audiovisual media ecosystem 4
5 What is the issue? Ever increasing quality and availability requirement New picture and audio formats: UHD (4k,8k), HDR, 360, AR, VR, Better user devices bigger screens, better displays, more processing power, more storage, More content choice: Linear, on-demand, time-shifted, hybrid, second screen, Increasing user expectations: any content, any time, anywhere, on any device Changing audience behaviour No single distribution infrastructure can serve all use cases efficiently for the reasons of technical capabilities, capacity, reach, and/or costs. Content and services are distributed on multiple platforms simultaneously Increasing costs and complexity 5
6 Our focus is on: linear TV Broadcast Non-linear TV Broadband with smartphone era Mobile video traffic accounted for 60% of total mobile data traffic in 2016 Over three-fourths (78%) of the world s mobile data traffic will be video by
7 Mobile communications and DTT standards landscape 7
8 Mobile TV in Broadcast industry Earlier attempts DVB-H DVB-NGH ATSC-M/H MediaFLO Mostly no commercial success Before the touchscreen era? Power consumption problem? Network and device cost? Market fragmentation? 8
9 Mobile TV in Broadcast industry High Power High Tower (HPHT) networks: Cover large areas Delivery of live video services, at high quality to a large number of subs Moving toward a worldwide broadcast terrestrial standard: ATSC 3.0? Using LDM for mobile reception 9
10 TV in Mobile industry Earlier attempts LTE embms No commercial success until Release 13: Pros: Same frequency carrier as unicast services Deployment costs are significantly lower Cons: Denser networks compared to terrestrial broadcast networks: cost? Reduction on system capacity for unicast services Hampers the embms business model Lead to lack of spectrum 10
11 embms in Release 14 Broadcast in 3GPP Release 14 (June 2017) Further enhanced MBMS: Efficiency: Broadcast Transmission (for all Network Providers) Topology: Increased cell size through extended Cyclic Prefixes Free-to-Air-Mode: SIM-Card not needed Standalone-Operation: ~100% Dedicated Broadcast Carrier Service Mapping: 1:1-Tansparent DVB/MPEG Transport Stream 11
12 Remember: Fight for spectrum Different network infrastructures and business models competing for market and spectrum 12
13 Terrestrial TV and Mobile broadband are complementary Therefore, a converged BC-BB platform could create a win-win ecosystem for both sectors 13
14 Use cases and usage pattern 14
15 Broadcasters requirements to fully take advantage of convergence All service types have to be accessible, i.e. linear, nonlinear and data. All reception modes have to be supported, i.e. fixed, portable and mobile. All existing screen sizes of devices need to be supported. A given level of technical quality needs to be provided. This refers to network up-time, error rate, latency, average buffering time, etc. The end-to-end service-specific quality is to be defined by the broadcaster and not the network operators along the delivery chain. Broadcasters have to be in a position to define the level of service availability, i.e. geographical coverage at given QoS, roll-out timeline, consistent QoS independent of audience size, guaranteed number of concurrent programmes, etc. The free-to-air model of broadcasting has to be implementable Ease-of-use of the user devices has to be ensured. 15
16 BC-BB convergence Service convergence: a range of different AV media services offered by the same provider. HbbTV Device convergence: same device is used for different services. smartphones and tablets Network convergence: same network is used to provide different services. at the transmission layer Three potential solutions for the BC-BB convergence architecture are: Common Broadcasting System architecture (CBS) Hybrid network architecture (TOoL+) Cellular broadcasting (5G media) 16
17 Common Broadcasting System (CBS) The French M3 project in 2011, forming by collaboration of DVB and 3GPP, providing broadcast capabilities to the 3GPP LTE systems The main assumption is the evolution of the broadcast capability of current 3GPP embms in terms of capacity, coverage and quality of service to match traditional broadcast networks. This technical proposal addressed key topics such as broadcast system architecture, modulation, system parameters, channel coding, time interleaving and reference pilots Transmitted on a dedicated carrier either by MNOs, or broadcasters HPHT networks. Or in-band with LTE/LTE-A unicast, or in-band with DVB-T2 broadcast, by using the FEF concept This proposal was not accepted by 3GPP due to lack of support from MNOs 17
18 Tower Overlay over LTE-A (TOoL+) Principles DVB-T2 framing structure: T2 frames and FEFs T2 frames contain: Preambles P1 and P2, which provide control information to DVB-T2 receivers T2 data symbols FEF: Starts with P1 and the rest can be used for either extensions of the standard or other technologies Allows time multiplexing various signal formats on the same frequency carrier The use of FEF does not have an impact on existing DVB-T2 receivers Carrier aggregation (from LTE-A Release 10): Allows for the use of wider bandwidth Increases transmission capacity aggregation of up to 5 carriers one primary cell and up to four secondary cells Belong to either continuous or discontinuous spectrum 18
19 Tower Overlay over LTE-A (TOoL+) Concept A hybrid carrier integrating an embms dedicated carrier into a DVB-T2 data stream Broadcast service delivery to both fixed and mobile devices By existing HPHT networks using FEF Simultaneous Mobile reception of both broadcast and unicast services using a normal LTE-A unicast carrier as primary cell and the MBSFN dedicated carrier as secondary cell using carrier aggregation. 19
20 Tower Overlay over LTE-A (TOoL+) Requirements The feasibility of this approach requires: DVB-T2 Hybrid modulators: support the modulation of LTE Broadcast signals and their integration into FEFs. LTE-A embms networks: MBSFN dedicated carrier and larger CPs in Release 14. The reception on the dedicated broadcast carrier could be shared by multiple MNOs and should be enabled by proper signaling located in LTE-A unicast carrier. Over a complete T2 superframe, the length of the two different parts must be an integer multiple of 10 ms to enable synchronization between the LTE unicast carrier and the dedicated broadcast carrier. 20
21 IMT-2020 Requirements for 5G Usage scenarios for IMT for 2020 and beyond embb (enhanced Mobile Broadband) mmtc (massive Machine Type Communications) URLLC (Ultra-Reliable and Low Latency Communications) 21
22 5G Standardization 22
23 5G broadcast vision Unprecedented communication capabilities Opportunity for the convergence of fixed, mobile and broadcast networks Network slicing for broadcast services PTM and caching as built-in network delivery optimizations not as a service Broadcast/Multicast Point-to-Multipoint (PTM) transmissions are key in many 5G use cases, but they have not been considered in the first release of 5G (Rel 15) 23
24 Convergence Vision The converged media delivery architecture of 5G-xcast over fixed broadband, mobile broadband and terrestrial broadcast networks allows a seamless, uninterrupted service to be offered to the users as they move. 24
25 5G-Today Project 25
26 5G-Xcast Project Title: Broadcast and Multicast Communication Enablers for the Fifth-Generation of Wireless Systems Duration: 24months Planned starting date: July 2017 (5G-PPP phase-2) Budget: ~8 M Project Coordinator: UPV (Spain) Technical Coordinator: Nokia (Finland) Number of Partners: 18 in 9 countries 26
27 5G-Xcast Project around the world Advisory Board Consortium 27
28 Phase-2 5G-PPP projects Projects that intend to define PTM 5G technology components 5G-SAT Projects that define use cases that require or could benefit of PTM transmissions 5G CAR, 5G CITY, others? Projects working on 5G network slicing: broadcast service as a network slide! 5G Monarch Projects aiming to impact 3GPP Rel 16 and Rel 17 New Radio and New Core One5G Projects developing new media services 5G Media 29
29 Conclusion Currently, media delivery convergence happens on applications and at the service level (e. g. HbbTV). Network convergence at the transmission layer enable flexible use of spectrum for linear and non-linear broadcast content EBU broadcast requirements taken into account in Rel 14 (EnTV) but not 100% clear that embms can be fully deployed in existing HPHT DTT broadcasting infrastructure 5G Broadcast not included in the first 5G release (Rel 15) and probably not the second (Rel 16) 5G-Xcast is performing pre-standardization investigations on 5G Broadcast, and will also seek consensus building for 3GPP activities 31
30 Thank you for your attention. Questions? 32
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