v5 - PowerPoint PPT Presentation

About This Presentation
Title:

v5

Description:

Coax and Fiber (Cable TV); Terrestrial radio-electric waves (MMDS); Satellite (Direct-to-Home) ... Approximately 80 video channels (6 MHz) ... – PowerPoint PPT presentation

Number of Views:21
Avg rating:3.0/5.0
Slides: 31
Provided by: LFFS
Category:
Tags: all | channels | direct | tv

less

Transcript and Presenter's Notes

Title: v5


1
Introducing Multimedia Services in Brazil in the
light of the Technological Convergence
Luiz Fernando Ferreira Silva, Ph.D., Anatel,
Brazil IP Networking and MEDIACOM 2004 Geneva,
24 - 27 April 2001
2
Contents
3
Introduction
  • Objective
  • To describe the extent to which Brazil has
    positioned itself to respond to the impact of the
    technological convergence on the
    telecommunication regulation in the country.
  • Argument
  • The implications of the technological
    convergence on current regulatory regimes clearly
    indicate that they will be subject of revisions.
  • The actions to be taken on these regimes, it is
    argued, need to be in line with the expectations
    of service providers and consumers in the sense
    of promoting greater benefits for the society as
    a whole under an increasing availability of
    convergent services.

4
The Technological Convergence
  • Conceptual Approach
  • Technological convergence is defined as a
    process of formation of successive similarities
    amongst technologies that had been distinct from
    one another. They have once established clear
    borderlines amongst the services they have
    enabled the provision but now share a common
    digital environment.

5
The Technological Convergence
6
The Technological Convergence
Users Perspective
Source Elaborated from Bill Wigglesworth and
Jill Hills. Convergence of Broadcasting and
Telecommunications, 1999 (mimeo).
7
Regulations toward Convergence
8
Regulations toward Convergence
  • Regulation for the Use of Paid Mass Communication
    Service Networks for the Provision of Value Added
    Services (VAS)
  • Approved through Anatels Resolution nº 190 in
    1999.
  • The purpose of this regulation is
  • To make mass communication service networks (DTH,
    MMDS, and Cable TV) available for providers of
    VAS
  • To allow the network holder to explore VAS only
    through a separated company established specially
    for the rendering of VAS
  • To promote free-market competition features
    between Access Network Providers
  • To make it possible the interconnection of Cable
    TV, MMDS, and DTH Networks to the Internet.

9
Regulations toward Convergence
  • Regulation for Mass Electronic Communication
    Services for Subscribers (SCEMa)
  • Public Consultation yet to be published
  • The purpose of this regulation is
  • To introduce the term electronic and adequate
    the regulatory framework to the current context
    of the telecommunications sector
  • To review and consolidate a single regulatory Act
    for pay-TV services
  • To license services and radio-frequencies
    separately
  • To regulate this service independent of the
    technology employed in its provision.

10
Regulations toward Convergence
  • SCEMa can be provided over technologies as
    follows
  • Coax and Fiber (Cable TV)
  • Terrestrial radio-electric waves (MMDS)
  • Satellite (Direct-to-Home).

11
Systems Characteristics
  • MMDS Characteristics
  • Telecommunication service which uses
    radio-frequency spectrum (2.5 GHz - 2.686 GHz) to
    distribute signals (any telecommunication signal)
    within the licensed area
  • Return channel in the frequency band of 2.170 to
    2.182 GHz (differs from the U.S. and Canada)
  • 6 MHz channels
  • EIRP Max - 33 dBW considering a 50 Km radius
  • The signal transmitted shall be coded by the
    operator

12
Systems Characteristics
  • MMDS Characteristics
  • Most of the operations are currently analogue,
    but the digitalisation of this system is taking
    place and its capacity will increase for the
    provision of services
  • MMDS uses a cellular configuration also split
    into sectors
  • Average Rate of 144 Kbps from the user to the
    head-end, using digital modulation.

13
Systems Characteristics
14
Systems Characteristics
  • Cable TV Characteristics
  • Cable television network is built up as a public
    and unique network
  • Telecommunication service, which distributes
    sound and video programs to subscribers by using
    cables (Mainly fiber and coax)
  • Approximately 80 video channels (6 MHz)
  • The return channel is available in the cable
    infrastructure
  • The modulation techniques most used are
    Quadrature Phase Shift Keying (QPSK) and
    Quadrature Amplitude Modulation (QAM)
  • Cable TV operators are currently using the Cable
    Modem technology to provide interactive services
    to users.

15
Systems Characteristics
16
Systems Characteristics
  • Cable TV Interactivity

Internet
Cable TV Network
User equipment
Internet
Cable TV Programming
Television
Until 10 Mbps to the user
Computer
Headend
Link
Modem
128 Kbps from the user
WWW Server

17
Systems Characteristics
  • Characteristics DTH
  • Telecommunication service which distributes audio
    and video programs through satellites to
    subscribers within the licensed area
  • The operator can use satellite systems either of
    its own or leased from a satellite operator
  • The operator must establish a Monitoring Center
    within the Brazilian territory
  • The transmission of DTH signal is digital
  • DTH has approximately 120 video and audio
    channels.

18
Systems Characteristics
19
Regulations toward Convergence
  • Regulation for the Multimedia Communication
    Service (SCM)
  • Anatels Public Consultation nº 246 (under
    analysis)
  • Holds capacity for providing multimedia
    applications, such as data, image, audio video,
    text, etc. (a convergent service indeed)
  • Can be provided over any telecommunications
    network
  • Public Switched Telephone Service, Broadcasting
    Service and Pay-TV Service are excluded.

20
Regulations toward Convergence
  • SCM Characteristics
  • Licensed area may be local, regional or
    national
  • Can be provided over various radio-frequencies,
    including 2,5 GHz, 3,5 GHz, 10,5 GHz and 24 -
    31GHz, known as Fixed Broadband Wireless Access
    (FBWA)
  • Point to multi-point, uni and bi-directional.

21
Regulations toward Convergence
  • SCM will support applications such as
  • High speed Internet access
  • Data communication
  • Corporate voice
  • Audio and video
  • Teleconference
  • Tele-medicine
  • Tele-education
  • Video-on-Demand
  • Other.

22
Systems Characteristics
  • SCM can be provided over various technologies,
    mainly over Local Multipoint Distribution/Communic
    ation System (LMD/CS).
  • LMD/CS has the following features
  • Capacity to provide convergent services
  • Capacity to provide telecommunication services at
    high bit rate
  • Use radio-frequencies around 28 GHz
  • Cellular architecture
  • Frequencies reuse
  • Limited coverage area.

23
Systems Characteristics
24
Systems Characteristics
  • LMD/CS Strengths
  • Potential to provide a full multimedia service
    network package of integrated voice, video and
    high-speed data services
  • Rapid deployment of a multimedia network and the
    lower costs for the installation of related
    accesses
  • A point to multi-point network, which offers
    further advantages such as faster realisation of
    revenue, demand-based buildout, a sort of
    fibre-like quality of service, quick response to
    market demand and lower network maintenance,
    management and operating costs.
  • LMD/CS Weaknesses
  • One of the main problems to be faced by operators
    of this system is rain, foliage and dust
    attenuation effects causing reduction in the
    signal level due to its operation at 28 GHz
    frequency band.

25
Anatels Regulatory Action
  • Public Consultation nº 291
  • On April 17, Anatel published the Public
    Consultation nº 291 which has the purpose of
    stimulating and broadening the debate on the
    choice of the countries DTV standard
  • This Public Consultation has as its Annexes
  • Annex I - Integrated Technical and Market Report
  • Annex II - Analysis of Tests (Field/Laboratory)
    performed in Brazil.

26
Anatels Regulatory Action
  • The factors that Anatel is to take into account
    in the adoption of a Digital TV broadcast
    Standard
  • Penetration rate of analogue, off-the-air TV in
    Brazilian households
  • Importance of the Brazilian market in the
    consolidation of the standard selected on a
    global scale
  • Business and transition models that meet the
    needs of the Brazilian population
  • Identification and analysis of all the factors
    involved in the introduction of digital
    technology in terrestrial TV transmissions.

27
Future Actions
28
Future Actions
29
Conclusion
30
Luiz Fernando Ferreira Silva, Ph.D. Anatel,
Brazil lffs_at_anatel.gov.br (55) (61) 312-2393
Write a Comment
User Comments (0)
About PowerShow.com