mobile TV feature
defining the required minimum
Where is bmcoforum now?
fixed consumption of audio-visual
median field strength that must be
What has changed?
content by using different (push and
offered in a target area and then pull) services via mobile, fixed and
predicting the locations where this broadcast networks. At its recent
From the user’s point of view, mobile
level can be reached, using planning annual plenary meeting 2009, the
broadcast convergence means
tools.
The status of
objective of bmcoforum was extended
blending traditional big screen TV
The bmcoforum link budget studies
mobile
to shape open markets for media
services with the mobility of a personal
list, for the various usage scenarios,
broadcast TV
delivery. In detail, it will now address
device. This is more than only viewing
what standard field strength values
worldwide is
the use of personal mobile devices in
TV on a pocket screen; issues where
should be used for network planning delivering relevant audiovisual content
bmcoforum members collaborate and
very diverse.of DVB-T, DVB-H, T-DMB, MediaFLO
and services wherever, whenever and
explore in several practical projects.
and DVB-SH services. It also provides
While the by the best delivery channel.From a technical viewpoint we must
the corresponding required minimum
services
Several new work items have been
be capable of using the best
terminal sensitivity in each usage
gathered
established to reflect this extended
capabilities of mobile and broadcast
scenario and gives practical reference
millions of
scope described briefly as:
networks, devices and services to
terminal sensitivity figures. It is based • Seamless unicast/broadcast
provide audio-visual services in a
users in
on the latest performance test results delivery - This work item will assess
seamless manner, wherever and
available for the most prominent Japan more precisely when and how 3G/4G
whenever. This has several
mobile broadcast technologies.
(ISDB-T),
networks and broadcast networks
dimensions, technical and economical.
Korea (DMB)
should cooperate to deliver audiovisual
Today mobile TV services are
Mobile broadcast
and China
content (linear or on-demand or push)
delivered on a streaming basis by
technologies
(CMMB), the
in the most efficient way, while
mobile networks or broadcast via
providing a seamless user experience.
broadcast networks.
progress inThis work describes in technical detail
• MobiFix - Blending experience
In the existing commercial mobile
a number of priority mobile broadcast
other parts mobile and TV - This work item seeksbroadcast services the broadcast
bearer technologies identified as of
of the world,
to build the following services and
network has mainly been used for
immediate commercial interest. The
especially in
demonstrate them, possibly leading to
broadcasting (existing) TV channels.
recent document gives an overview on
Europe,
customer trials in a follow-up project:
Some of them have also started to
the following mobile broadcast bearer delivery of linear TV services via WiFi to
broadcast interactive content and
remains
technologies: BCMCS, CMMB STiMi, mobile devices, both in the home as
service elements. In mobile broadcast
DAB/DMB, DVB-H, DVB-SH, DVB-T2, below well as in hotspots; and delivery of
services, the mobile network is mainly
FLO, MBMS, TD-SCDMA, UMB BCMCS.
expectations
time invariant TV services to different
considered to provide the return
so far.
devices and the ability to seamlessly
channel for interactive services.
Interactive usage scenarios transfer between different devices.
On the other hand, via the mobile
• Audience measurement - With the
network a lot of other audio-visual
The convergence of broadcasting and diversification of audio-visual services
services can be accessed, eg streaming
mobile functionalities in mobile provided by different market players
or downloading the audio-visual
devices paves the way for a new user and over different networks, audience
content to the mobile device. Part of
experience - while watching TV, users measurement becomes an increasing
them is provided by the mobile
are able to access additional inform- factor for advertising based business
operators as live TV bouquets or music
ation or interact using the mobile models. Based on previous work on
stores, the vast majority as catch-up
channel, eg through sending SMS. the ecosystem and functional
TV, podcast and filecast services or
The bmcoforum developed a set of requirements to mobile broadcast
access to YouTube, all available via
use cases for interactive mobile audience measurement, this work item
mobile Internet access.
broadcast services to illustrate the aims at developing basic rules for this
The user can also side-load content
desired service offerings. It may open harmonisation. The next step will be an
from his PC or laptop to the mobile
content providers to the range of open workshop with widespread
device for later consumption while on
possibilities to enrich mobile TV stakeholders in this area on the ways
the go. bmcoforum is reflecting this
services. to a standardised solution.
extended convergence of mobile and
Features
• 1, 2 or 4 channel HD/SD Waveform Monitor
• Simultaneous display of up to 4 waveforms
• In-built Quad Splitter
• In-built Rasterizer
• HD/SD Audio De-embedding
• 5.1 Surround Sound Metering “Solutions in Audio & Video”
Email:
info@dk-technologies.com • Web:
www.dk-technologies.com • Tel: +45 4485 0255 • Fax: +45 4485 0250
DK-Technologies A/S, Marielundvej 37D, Herlev DK-2730, Denmark.
www.ibeweb.com l september/october 2009 l ibe l 59
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