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Posts Tagged ‘Wi Fi’

3G/4G Xoom Tablet And WiFi

3G/4G Android Tablet

My tablet goes everywhere I go. I use it for work, for navigation, for music streaming in the car. It always has my work email, which I do not push to my Android phone for fear that it would never stop buzzing. I tweet from everywhere, all the time with it, read my Kindle and various news apps.  WiFi is not all we need for a tablet.

"3G/4G Xoom Tablet"

3G/4G Xoom Tablet

 

The Cost Is Not As Great As You Think

3G/4G Xoom Tablet

Foremost, let’s be clear here. My 3G tablet is an iPad 2. I pay Verizon $20 a month for 1GB of cellular data. I can change that plan on a month-by-month basis if I so chose, dropping it one month or increasing my limit the next month. So, I pay $240 a year for the convenience of having connectivity everywhere I go, $480 for two years. Less if I drop the coverage for months when I know I am not going to need it. As of yet, I have not needed to change the plan once.

For most users, 1GB is going to be more than enough data for their particular uses. Twitter, maps, email, news apps and nominal music streaming do not consume mass amounts of bandwidth. With the extra cost of a 3G iPad, my total cost-of-ownership is about $600 more over a two-year span. Again, less if I turn off the cellular plan for months when I do not need it. The choice is a decent ploy that Apple has pushed on the carriers. 3G/4G Xoom Tablet

The carriers do not sell iPads on contract. The device costs the same no matter where you go. If you are looking at buying an Android tablet you then will get into the realm of carrier contracts. That was more of a concern before Android tablets started dropping in price. The first real Android Honeycomb tablet, the Motorola Xoom, cost $799 without a contract, $599 with a contract when it was first released. Samsung 10.1-inch Galaxy Tabs costs $529 on a two-year contract then the data plan you get roped into. What Singh maybe should have said is that you may not want to buy anAndroid tablet that has 3G/4G Xoom Tablet capabilities.

Wi-Fi Is NOT Everywhere Nor Is It Always Free

I hate coffee shops. I do not spend a lot of time in McDonalds or Starbucks. The coffee shop down the street from me in Boston charges for Wi-Fi as do most of the other coffee shops in the general area. The fact of the matter is that, while Wi-Fi is increasing in prevalence across the U.S. and Europe, it is far from ubiquitous. Also, I do not like shared Wi-Fi. There is little I dislike more in life than having to pay to use someone else’s insecure Wi-Fi. 3G/4G Xoom Tablet

Another place where I rely on my tablet is in the car. The car does not have Wi-Fi unless it is one of those new-fangled cars that come with its own hotspot. My iPad and Android smartphone have completely replaced physical maps for me. The maps app is more powerful and accurate on the iPad than on my Android.

I have stopped getting lost. It does not matter where I am, I rely on my 3G tablet to show me where I am. Part of Singh’s argument also has a tint of urban-bias. Yes, in the city, there is going to be more Wi-Fi available with AT&T Hot Spots, restaurants and coffee shops offering wireless service. All those different Wi-Fi spots are not going to help me when walking down the street looking at a map trying to figure out where I am going or if I leave the city. A good portion of the U.S. does not have ubiquitous Wi-Fi. In terms of abroad, I was recently in London and Montreal trying to figure out where I was. I had no cellular data because international roaming rates are outrageous. So, I tried logging onto various Wi-Fi spots available around me. This proved to be a complete nightmare, especially as I started moving around the cities. 3G/4G Xoom Tablet

I do not believe that I have to make a concerted effort to pre-cache all of my reading material on Wi-Fi before I leave the house. Maybe it is part of my profession, but I want the news, in real time, wherever I am. If I am getting on a plane? Sure, I will pre-cache my reading material but the plane is one of the only bandwidth-less places in all of modern society.

Hotspots & Tethering Are Not Always Practical

Mobile hotspots through carriers like Sprint, AT&T and Verizon are not really cheap. The hotspot receiver is often on contract and will cost anywhere from nothing to $250. On Sprint, you get 3GB a month for $35 with 6GB and 12GB options for $50 and $80. You want to talk about total-cost-of-ownership (TCO)? A WiFi hotspot is going to cost you more than most any tablet data plan. It is also probably more data than you need for your tablet. The people who use these are professionals that are often out of range of Wi-Fi or are trying to create their own secure and private connection at a crowded conference (smart reporters love them, if they can write the bill off to their companies).

Then there is the matter of tethering you phone. What that comes down to is you are more or less going to spend the same amount with that tethering plan that you would on tablet. It is convenient at times to tether your computer but the tablet is a stand alone device. Users should not need to rely on one device to power the other. The rates for tethering from At&T and Verizon are the same they charge for data on the iPad. AT&T charges an extra $10 for a single GB above the threshold.

There is then the issue of the battery. When you turn on tethering on your device, a pop-up warning comes up saying that you might want to make sure you plug your device in because it is about to suck through its battery. What if I am trying to navigate or I am not close to a charger but would like to conserve my battery? My tablet becomes useless because I am going to burn through my phone’s battery. What am I stuck with then? A tablet without connectivity and a smartphone with no battery. 3G/4G Xoom Tablet

To be honest, the lack of 3G/4G is not going to affect the majority of users. It has been pretty well established that most people use their tablets in the home anyway. Wi-Fi tablets outsell cellular versions. Mostly, that is because they are cheaper.

Is Wi-Fi fine for your tablet? Maybe. But that is only if you do not plan on using the device to its fullest functionality anywhere you are at anytime. To me, that is handcuffing the capabilities of these great devices.

3G, 4G, LTE, WiMax, Deployment Concerns

"3G, 4G, LTE, WiMax"

What To Deploy And The Decisions Involved In When To Deploy

"3G, 4G, LTE, WiMax"Over the past ten years mobile communications have transitioned from a luxury item to a utility as critical as electricity and water.  With this rapid expansion of subscribers and services, the operators of the wireless networks are making money today and adding subscribers at rapid rates.  India for example has growth between 20% and 30% year over year growth in mobile subscribers. 3G, 4G, LTE, WiMax

However, this very success carries the seeds of potential crisis as these subscribers begin expecting, demanding and consuming ever-increasing amounts of data over these same networks.  3G networks-from the RAN architecture to the synchronous transport-were designed primarily to support increased voice capacity with a modicum of data support.  They were never intended to support the multiple terabytes being transported today.  HSPA and HSPA+, while definitely providing enhancements, are still bound by the 3G architecture and can be considered mere band-aids as opposed to long term solutions.

3G, 4G, LTE, WiMax

As operators eye the incredible growth and hence strain on their networks, they must ponder the question: When and how do I make the move to 4G? It’s no longer a question of ‘if’, but more a question of “when” and “how”.
It’s Not a Technology Decision, It’s a Business Decision

With all the claims being thrown about over how many megabits per second can be achieved with WiMAX and LTE, there is a tendency for operators to get caught up in the technology hype.  This can be a dangerous position.  While technology is relevant, it should not determine the driving criteria by itself.  When it comes down to how many bits/second/Hz WiMAX or LTE can provide, fundamentally they are both limited by physics.  Both technology camps use the same techniques to enhance capacity and an objective apples-to-apples comparison delivers similar performance. 3G, 4G, LTE, WiMax

Other parameters that should be considered before making a decision of  WiMAX vs.  LTE need to be considered.  Each of the following questions and considerations has a major impact on the eventual success of the operator’s business case: 3G, 4G, LTE, WiMax

 

  • What frequency band will be used for the network? Is it a standard band for either technology?
  • Will you need to make a cutover to 4G or do you have enough spectrum to do an overlay a la Verizon and ATT with their 700MHz holdings? 3G, 4G, LTE, WiMax
  • What services are being targeted? Do your subscribers look for basic email and internet access or will they be driven by high bandwidth applications like Streaming Video, Video Conferencing, Online Gaming?
  • This in turn will determine what types of devices will be used on your network.  Just phones? Data dongles? Laptops with connectivity built in? Will Machine to Machine be a part of your device strategy?
  • These two factors will in turn drive capacity.  One of the key changes for operators is the shift from the network being coverage limited to being capacity limited. 3G, 4G, LTE, WiMax
  • An operator must determine if data roaming is something their subscriber base is expecting.  This in turn can be broken down to a question whether local roaming on competing local networks is more important than roaming internationally. 3G, 4G, LTE, WiMax
  • Probably the most difficult decision to make is the question of when to make the move.  The timing of the move must be done carefully, as it has the potential to have severe negative impact to the bottom line if handled poorly at the wrong time.

Whether the operator is considering moving from 3G to WiMAX, 3G to LTE, or even WiMAX to LTE, they need to develop “transitional business cases” and be able to see the financial impact of such a transition.  Ultimately all of the factors cited above have to be considered and factored into a business model where clear financial results can be predicted. 3G, 4G, LTE, WiMax

Business Case for a Transitional Network

3G, 4G, LTE, WiMax


Taking into consideration the factors listed above, integrating such technical parameters as terrain and equipment performance, and deriving the relevant financial results are not easy tasks.  The right business model will allow the operator to adjust Key Performance Indicators (KPI) and see the immediate impact on the finances.  The WiROI tool from Wireless 2020 is just such a tool and has been used to assist operators with decisions such as this in over fifty networks worldwide. 3G, 4G, LTE, WiMax
The tool incorporates technical performance of a given vendor’s system, factors in market and subscriber data, applications, devices, and more-up to 300 input parameters-to deliver full and complete financial projections.  With the WiROI tool, an operator can compare all three transitions mentioned previously:

  • 3G to WiMAX
  • 3G to LTE
  • WiMAX to LTE

The result is a user-driven GUI with detailed financial numbers that can be used to help in this critical decision of what, and maybe more importantly, when to move forward.  Figure 1 shows the results for a TD-LTE deployment in Malaysia.  This depicts the results of a WiMAX license holder deploying TD-LTE in partnership with mobile carriers.


Figure 1

Making the Call

The rise of mobile data is undeniable.  One can argue how much data a 3G network can support and when it will run out of capacity, but eventually the 3G network will run out of steam and the operator will be required to transition to 4G.  With the “battle” between WiMAX and LTE increasing with each day, the rhetoric from both camps is in full swing.  For an operator today running a successful 3G network, sifting through the competing claims can be daunting.  It is easy to get lost in how many dB here or there this or that system can deliver. 3G, 4G, LTE, WiMax

But in the end the decision by an operator must be made from an integrated business and financial perspective.  As this decision will have a far-reaching impact on the viability of the operator, it is imperative that they have all the data at hand.  Being able to model varying approaches and including the factors described above are essential for an operator in order to have confidence in the anticipated results.  While this is probably the biggest decision an operator has to make, it does not have to be done blindly.  Using tools such as WiROI can help make this decision with eyes wide open and full knowledge of the totality of potential impacts-from the minor issues to the most important ones. 3G, 4G, LTE, WiMax

3G, 4G, LTE, WiMax

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