Breaking News
Comments
Newest First | Oldest First | Threaded View
Bert22306
User Rank
CEO
re: Sequans gung-ho for LTE Broadcast
Bert22306   2/26/2013 10:42:58 PM
NO RATINGS
Let me be more specific about my disconnects here. Carrier aggregation is important for a technology that requires cnannel huge channel widths, such as LTE does. It becomes much less important to ASTC or DVB-T2, which operate on 6 to 8 MHz channels. LTE as well as W-CDMA therefore provide carrier aggregation. The comment about "on demand" video is certainly valid, but it's a non-sequitur. It is true that it takes a two-way network such as LTE to support VOD. You cannot do this with DVB-T or DVB-H. But then, this negates all that was said about the wonders of LTE broadcast. You do NOT "broadcast" VOD. By definition, what goes to an individual viewer only is not "broadcast." So using LTE in MBMS mode, for this type of VOD programming, is an egregious waste of spectrum! Previous mobile TV efforts, such as DVB-H, were also based on standards. They failed anyway. So just because LTE MBMS is also a standard surely is no guarantor of success.

Bert22306
User Rank
CEO
re: Sequans gung-ho for LTE Broadcast
Bert22306   2/26/2013 9:06:00 PM
NO RATINGS
Bolderdash. The only possible advantage LTE broadcast has over more efficient schemes, such as DVB-H or DVB-NGH, or even DVB-T2 tuned to work most effectively with mobile devives, is that the cell carriers can extract revenue for the LTE broadcasts. They cannot do so if cell users can bypass the carrier's cell network and go directly to the OTA broadcaster's network. The carrier aggregation issue is an orthogonal discussion. It's useful to LTE, mainly because LTE requires such wide channels, and carriers don't often have slices that are 40 or 80 or more MHz wide. If you look at the numbers, though, you pay a price for LTE broadcast, compared with DVB-T2 for example, in spectral efficiency. In order to approach the spectral efficiency of DVB-T2, the LTE network needs to have very closely spaced towers. You pay price to transmit broadcast over a network designed for two-way unicast. Those technical issues aside, mobile broadcast has always been a tough call. I guess that people on the go would much prefer to view content on demand than to have to conform to broadcast schedules. LTE will not change that. We've read this type of news item enough times now that I am quite skeptical. Just because something can be done does not mean that it should be done.

eewiz
User Rank
CEO
re: Sequans gung-ho for LTE Broadcast
eewiz   2/26/2013 6:30:09 AM
NO RATINGS
Ok. so this means, an additional receiver chip is not needed in the smartphone to receive TV signal, And can use the existing LTE modem with minor modifications. Right? If so that is an interesting proposition. This might have been a reason for DVBH/Mediaflo failure in addition to Internet streaming video.



Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

The Best of the Best Videos on YouTube
Max Maxfield
2 comments
A couple of days ago, my chum Paul was visiting me in my office. He'd wandered over from his cubicle in the next bay to take a brief coffee break. This week, Paul had been admiring the ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...