contreras

Total Rating:
0 / 0

14 Comments

    • Thu Aug 7th 08:27 AM | Rating: 0 0
      Commented on:
      WiMax Empire Poses Continual Threat to the AT&T Network
      WiMAX will be deployed before LTE and both use OFDM (which is not used in HSDPA by the way). But there is a big difference between them, and that is the business case. Let's remember that, as soon as it is the real driver of the technology evolution. WiMAX is a new standard, which has good supporters and is being pushed by Sprint-Nextel as 4G (which it is not... yet) to offer broadband nationwide in the U.S. Sprint's WiMAX is 802.16e which is not related to all "WiMAX references" in the world and is not backwards compatible. Its standard has no definition for compatibility with any other technology, not even Wi-Fi handovers are mentioned. And not all the big players support it (Ericsson, who happens to be the biggest infrastructure supplier in the market).

      LTE, is supported by 3GPP and all the infrastructure vendors. Its compatibility with GSM, UMTS, HSDPA and HSUPA is defined since the start. It allows use of multiple bandwiths (starting from 1.2MHz) and FDMA and TDMA options, which allows it to be implemented in every piece of frequency that is currently used for 2G or 3G networks, and grow in smooth way. The terminals that will support LTE will have an smooth evolution as the HSDPA terminals did. You actually don't need to build a huge network to start offering it (this might sound good for carriers) and finally, all big players are supporting it (T-Mobile, AT&T, Vodafone, Telefonica, America Movil, etc).

      I believe in WiMAX, as a good broadband solution as backbone for rural areas... not as an access solution, as it is not compatible with the current techonologies, not even CDMA which is so well spread in the U.S.

      The times when a new technology could just appear and make a business case for itself are gone. If you are not compatible with the current access networks you may not have any future. A business case for a 14B USD investment in a technology which not everyone believes in, and with an LTE solution coming... sounds risky. May work but I would never bet on that. Disclaimer: Telecom Engineer from NSN, ex-Nokia Networks and ex-Motorola
      View article »
    • Wed Apr 16th 02:05 AM | Rating: 0 0
      Commented on:
      Smart Phone Wars: iPhone vs. Blackberry vs. ...Android?
      Got to agree with Samij. Unfortunately, it seems nobody cares about the global numbers. Just consider that Nokia sells 1+ million Smartphones every week. Smartphones with free applications, GPS, HSDPA, DVB-H, MMS (?), GSM in 4 bands, media center functionality... even my phone is currently holding a web page (as a server...)

      But I think this kind of analysis is good at some extent, as it works enough for playing with APPL stocks, which is traded in the US.
      View article »
    • Thu Feb 21st 06:46 AM | Rating: 0 0
      Commented on:
      Is Blu-Ray Actually Microsoft's Victory?
      It's clear that XBOX is losing grip as in one way, or another, it's associated to HD-DVD failure. In the other hand PS3 came slow, but is catching up, and with the Blu-Ray victory, now has space to grow, while XBOX needs to catch up now. It's Sony's victory, and even if it isn't a big drawback for MSFT's XBOX, they will now be the ones catching up.
      View article »
    • Thu Feb 21st 06:36 AM | Rating: 0 0
      Commented on:
      Ready for 4G? Ericsson Expects LTE Deployment in 2012
      Very interesting article. This is a conservative position of Ericsson. LTE could be widespreading before 2012 as WiMAX will have some footprint (most probably) and will start offering full-mobility services.
      View article »
    • Thu Feb 14th 08:34 AM | Rating: 0 0
      Commented on:
      iPhone Now In 2nd Place In The US Smartphone Race, 3rd Globally
      I don't see the point in mixing the great iPhone with RIM or Palm. iPhone is not a business oriented cell phone at all. I wonder how they split Nokia and Motorola's wide portfolios... I'm sorry to say Duncan Riley, but this is a verysuperficial "analysis". Please include the source.
      View article »
    • Thu Feb 14th 08:26 AM | Rating: 0 0
      Commented on:
      Nokia N96: Where's the Touch Screen?
      @Paul Kedrosky: Thanks for the article! It has such a lack of content that it's a funny "opinion"
      View article »
    • Thu Feb 14th 08:24 AM | Rating: 0 0
      Commented on:
      Nokia N96: Where's the Touch Screen?
      @Thomas: Taking a look at the sales of N-Series (multimedia) and E-Series (business) worlwide. What makes you think the Nokia is doomed in regard to the high end? or are you talking about US market only?. When you see such a helathy business worldwide with 40% market share, and with great revenues, is hard to take into consideration such comments.

      @Brewer: you were kidding, right? you do realize that it's a double slider, don't you?
      View article »
    • Tue Oct 23rd 10:23 AM | Rating: 0 0
      Commented on:
      I Want A Piece of Alibaba's IPO
      I agree 100%. Alibaba may be risky, but could close the circle of e-services and be the next big thing. I am also trying to participate in that IPO.
      View article »
    • Thu Oct 18th 08:36 AM | Rating: 0 0
      Commented on:
      Five Reasons Why Apple's iPhone Is More Disruptive Than You Think
      Me too. This is the "beauty" of the iPhone. A great marketing campaign and a "follower" market. That's the reason why in the US (and only in the US) people think that Apple invented the GUI, the Mouse, the Taskbar and the mp3 player... this is very sad...
      View article »
    • Thu Oct 18th 08:24 AM | Rating: 0 0
      Commented on:
      What Is Nokia Thinking? Navteq Bid Makes No Sense
      "China, India, and Africa are unbelievably huge markets. And yes, customers there could buy cheaper products from other companies, but they could also buy pre-owned Nokia phones as well (most phones in the developing world are bought pre-owned)."

      pre-owned phones? where? what are you taking about? If you are talking about black market, how do you know how many they sell? the sales in "developing" markets as China and India does not mean that they are all poor... they have big markets... don't you get it? Nokia has 39% market share in the world, and not thanks to low-end handsets... it is by far number 1... and in US it is 3rd? 4th?... Motorola is number 1 in the US... and 3rd in the world (behind Samsung)... there are reasons for that, and that is not only Europe, but LatAm, China and India...
      View article »
    • Thu Oct 18th 08:17 AM | Rating: 0 0
      Commented on:
      What Is Nokia Thinking? Navteq Bid Makes No Sense
      Are you serious? well, then I guess Nokia and TomTom just had spare 10billion and wanted to spend on something... this is ridiculous
      View article »
    • Thu Oct 18th 07:54 AM | Rating: 0 0
      Commented on:
      Clarifying "Why Apple's iPhone Doesn't Need 3G"
      "Instead, what consumers do use is a lot of applications that demand an always-on, fairly low-latency network. Examples of that include phone calls, email, instant messaging, Web browsing, VOIP, Google maps, you name it."

      How can you talk about latency if you have no clue what latency is in the EDGE network that iPhone uses? EDGE latencies are around 10 times higher than in 3G networks. Was this the main point?

      "Any company, not just Apple, who can figure out how to deliver great experiences on low-bandwidth networks, has a huge advantage over those that require 3G because 1) they have a much larger addressable market, and 2) their service can get used in more places for years to come."

      I don't know 1 single operator that is not planning to move to 3G within 2 years time tops (excluding the ones that have already moved). And this is not US market, you can see this in African market even...

      "And no matter how much we may argue about the various technical merits, that market reality isn't likely to change within this decade."

      I am afraid this may be the case in the US, as most of the operators are sticking in the CDMA2000 with EV-DO and EV-DV variants... these technologies most probably won't succed, and the will have to migrate to HSDPA or LTE... US market is losing time with these technologies, and even Jobs knows it, that's why he picked the cheapest radio technology from european standard (GSM).
      View article »
    • Thu Oct 18th 07:12 AM | Rating: 0 0
      Commented on:
      Why Apple's iPhone Doesn't Need 3G
      Ok, I am a telecom engineer with 8 years experience in AMPS, GSM, CDMA IS95, CDMA2000, UMTS, HSDPA...

      All your points are sadly wrong. Latency is around 10 times lower in a 3G network. I don't know if you are familiar with the term WIDEband CDMA... The carrier in 3G is wider than the ones used in 2G. The trick is in the coding, even at very low RF conditions 3G will perform much better than 2G... 2G (GSM) defined in 1992... while 3G in 1997, and HSDPA in 2002-4... you are trying to say that a technology that has been defined and standarized years after... is worse??? the consumption in 3G devices is higher, but if you want to make this comparision, you should consider that the data vs. time efficiency in the 3G device is much higher than the one in a 2G device. Of course if you just start "webbing" with no purpose, the 2G device will last more, but that is not the idea if you are a business user...

      I think you need to visit real 3G markets in the world, unfortunately the US market suffers to have very low-quality networks, and I think that is the reason why someone can have conclusions like yours...
      View article »
    • Thu Oct 18th 06:28 AM | Rating: 0 0
      Commented on:
      What Is Nokia Thinking? Navteq Bid Makes No Sense
      Do you really get paid to write something like this? Do you think the iPhone is an smartphone and compare it with RIMM and Palm? a big player? They sold 1+ million this far... Nokia sells 1+ million SMARTphones every week... what are you talking about??? or are you referring to California market only? amazing!!!...

      Check the Q3 results from Nokia released today...
      View article »
Contribute an Article Become a Seeking Alpha Contributor