ISEM 3015 Telecommunications and networking in business Natalie,Wong Hiu Ying Cherries, Cheung Chuk Ching Andy,Lam Chuk Yat Marcus, Kwok Hon Wing Cm, Ngan Chiu Ming Wilson, Siu Ho Tin So Ho Ching Paul Joshua 1

Traditional TV?  Not portable  Inconvenience  Too big …… 2

Introduction to our topic: Mobile TV Why we are interested on doing this topic? 3

Background Information on Mobile TV There are 4 possible techniques that operate the Mobile TV They are: I)OTT II)CMMD III)DTMB IV)DVB 4

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Content of OTT A) What is OTT By Definition By Comparison B) Trend of Telecommunication – using OTT C) Element of OTT D) Application E) Strength and Weakness 6

A) Definition Over-the-top content Deliver multimedia content over the Internet Using HTTP protocol No multiple system operator being involved in the control or distribution of the content Transmission speed and quality depend on internet connection Generally, lower in cost than the traditional method of delivery 7

Illustration Content Provider multiple system operator Viewers Content Provider multiple system operator Viewers Internet cable/satellite

Comparison 9 Traditional Method OTT Hulu or NetflixSkype Whatsapp, Facebook Regular TV provider long distance provider SMS

B) Major trend of telecommunication The world is rapidly going mobile and broadband The huge growth in video traffic, which is now five times larger than it was five years ago More than 50 billion connected devices by

C) Elements of OTT 11

Elements of OTT a)Personal Device b)Internet c)Third Party d)Platform for video delivery 12

a) Personal Device Personal device such as cell phone, iPad or computer Enable us to watch the video by using such devices 13

b) Internet Internet : fundamental part of OTT Without Internet : OTT can not be used Example of Internet : Wifi, 4G,3G,Home gateway 14

c) Third Party Provide the video through Internet Example such as Now TV, TVB (MyTV) 15

d) Platform of third party to provide TV program Video on Demand  Video assets are stored in video servers  severed when a user make the request in the from of IP unicast stream 16

Video Server Centralized IP Edge Distributed IP Edge

D) Over-the-top(OTT) Application 18

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An over-the-top (OTT) application is any app or service that provides a product over the Internet and bypasses traditional distribution Services that come over the top are most typically related to media &communication and are generally Over-the-top Application 20

Traditional distribution Without a multiple system operator being involved in the control or distribution of the content A multiple-system operator or multi-system operator (MSO) is an operator of multiple cable or direct-broadcast satellite television systems 21

 An online video distributor (OVD)  OTT content through internet-connected devices such as desktop and laptop computers, tablets, smartphones including iPhones and Android phones  set-top boxes such as Google TV smart TVs and gaming consoles such as the Wii, PlayStation 3 and Xbox 360. Media & communication Using OTT 22

E) Strength & Weakness Content Delivery Uses open internet, unmanaged network “open ecosystem” Quality of Service (QOS) No guaranteed, works under best effort conditions ChallengesLow Quality, Non Premium Content No Live Broadcast BenefitsLow Cost, Flexibility of content consumption across devices, interactive 23

II) CMMB 24

Definition China Mobile Multimedia Broadcasting (CMMB) Mobile television and multimedia standard released in 2006 Developed by State Administration of Radio, Film, and Television (SARFT) Using Satellite and Terrestrial Interactive Multiservice Infrastructure (STiMi) 25

Components Use different frequency bands for two transmission channels S band for satellite Frequency: GHz Frequency: GHz UHF band for terrestrial repeaters Frequency: MHz Frequency: MHz Channel bandwidth can be modulated into either 8MHz or 2MHz 26

Infrastructure Support both terrestrial or satellite’s signal broadcasting 27

General Application Face to small-screen & handheld devices, e.g. mobile phone, PDA, MP4, digital camera Provide mobile TV, comprehensive information & emergency broadcast services Deployed in over 330 cities in China since

Applications in HK - UTV Provided by China Mobile Hong Kong Company Limited (CMHKCL) in 2012 Own a 8MHz bandwidth license  678MHz-686MHz (UHF band) 7 hilltop transmitting stations  6 hired from TVB & 1 hired from ATV 29

Applications in HK - UTV Provide 8 Channels  2 for free Transmit QVGA (320x240) video signal, lower than quality of VCD HKTV bought CMHKCL by $104 million in 20/12/

Strength Stable broadcasting Suitable for small screen devices (mobile phone) High coverage  95% HK region 31

Weakness Low resolution Extra receiver is need  extra cost Provide fewer channels 32

III) DTMB 33

Component What is DTMB?  Digital Television Terrestrial Multimedia Broadcasting  Digital Television Terrestrial Multimedia Broadcasting Signal frequency: MHz Bit-rate: from 4.813Mbit/s to Mbit/s Channel bandwidth can be modulated into 1.5MHz Development: from only in-house to now outdoor with a small receiver 34

Infrastructure 35

General Usages Traditional: Internal Broadcasting TV signal Fixed site: home TV New Trend: External Mobile devices Built-in receiver: e.g. Korean mobile e.g. Korean mobile phone phone External receiver:  HK mobile phone,  HK mobile phone, which is a new which is a new technology technology 36

Applications Application in HK give 2 examples (inner/outer)  Foresee: More and more people would apply the skill on mobile TV (Outer)  Why? -Much more convenience -Much more convenience - Mobile TV becomes more popular in Hong Kong - Mobile TV becomes more popular in Hong Kong 37 InnerOuter TVB and ATVMobile TV  Traditional TV  A new way

Strength 1. What are the reasons of using DTMB?  High resolution (max. 1080i)  High resolution (max. 1080i)  Stable broadcasting (foreign)  Stable broadcasting (foreign) 2. Korea and Germany successfully broadcasted the World Cup by using DTMB World Cup by using DTMB (But, how about HK?) 38

Weakness  A receiver is needed  Not suitable on mobile phone or tabs  Not stable broadcasting (in HK) 1. Immature skills 1. Immature skills 2. Signal is blocked by tunnel, tall buildings, etc. 2. Signal is blocked by tunnel, tall buildings, etc. 39

IV) DVB 40

DVB – component Digital Video Broadcasting (DVB)Digital Video Broadcasting (DVB) is a suite of internationally accepted open standards for digital televisionis a suite of internationally accepted open standards for digital television It suits for TV and Mobile TV transmissionIt suits for TV and Mobile TV transmission 41

DVB-H Digital Video BroadcastingDigital Video Broadcasting DVB-H Modulation Frequency OFDM(5,6,7,8 MHz)DVB-H Modulation Frequency OFDM(5,6,7,8 MHz) mobile TV formatmobile TV format European Union’s preferred technologyEuropean Union’s preferred technology mobile broadcasting on March 2008 mobile broadcasting on March

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DVB in the world 45

DVB-H application at present DVB-H has been a commercial failure, and the service is no longer on-air.DVB-H has been a commercial failure, and the service is no longer on-air. Finland was the last country to switch-off its signals in March 2012.Finland was the last country to switch-off its signals in March

DVB application in Hong Kong In Hong Kong, digital terrestrial broadcasting services started since 31 December 2007In Hong Kong, digital terrestrial broadcasting services started since 31 December 2007 EG: TVB, ATVEG: TVB, ATV Planed to use DVBPlaned to use DVB Followed Chinese standard DTMBFollowed Chinese standard DTMB Now DVB is not prevalent in Hong KongNow DVB is not prevalent in Hong Kong 47

DVB application in Hong Kong The OFCA(Office of the Communications Authority) suggested The HKTV to use DVB-H for broadcast their TV channel 48

Strength and Weakness Strength Suitable for mobile device Suitable for mobile device High resolution High resolutionWeakness External receiver needed External receiver needed Additional cost need as receiver Additional cost need as receiver 49

DVB-T2-Lite DVB-T2 is a new standard based on DVBDVB-T2 is a new standard based on DVB The GSMA Mobile World CongressThe GSMA Mobile World Congress is a combination of the world's largest exhibition for the mobile industry and a conference is a combination of the world's largest exhibition for the mobile industry and a conference 4K(3840×2160/4096×2160) available4K(3840×2160/4096×2160) available is now testing 4k in Czech Republicis now testing 4k in Czech Republic 50

DVB-T2-Lite 51

52 CategoryCMMBDVB-HDTMB UsageMobile television Terrestrial and mobile television Modulation(OFDM 2/8MHZ) OFDM (5,6,7,8 MHz) OFDM(1.5MHz) Resolution Low definition of 320p Up to 1080i Up to high definition 1080i ReceiverYES Strength Stable broadcasting Suitable for small screen devices High Coverage High video quality Stable broadcasting High video quality at fixed locations Higher spectrum efficiency Faster channel synchronization Weakness Low resolution Provide fewer channels High start up cost Unstable broadcasting - services prone to interruptions during commutate Comparison between DTMB, DVB and CMMB

Worldwide Digital Terrestrial TV Deployment 53

China DTMB Deployment Landscape 54 The DTMB standard was ratified on Aug. 18, 2006, and became the mandatory terrestrial TV signal for Chinese broadcasters on August 1, 2007.

55 Unstable Broadcasting

Recommandation 56

END Thank You 57

Q & A 58