vitaminc

An SIM Free Option for LTE Should Exist

Not sure the comparison of one-off transactions between WiMax/LTE and Wifi is valid. Most of those WiFi hotspot charges a ridiculous amount for one-off accesses (at least in US) and actually made using post-paid mobile data much more attractive. Hell even AT&T, T-Mobile USA and Sprint offers one-off hotspot free as an promotion to their DSL and 2.75G/3G+ wireless data plan packages.

A Real iPhone Challenger - Barron's

Long Apple short RIMM, NOK and HTC because iPhone will dominate the smart phone world! Everybody and their grandma will be using an iPhone!

So how many of you Apple fanboys are posting here using iPhone while lining up for July 11th release?

WiFi vs. 3G and Session Based Mobile Broadband

I find this article to be vastly interesting.

While the consensus believes in the convergence of mobile data and mobile voice, the usage model is not yet clearly defined. Mobile/wireless data users are situated to a very different usage and payment model vs. the mobile voice users.

Perhaps the convergence of the usage/payment model will happen with release of an Amazon-Kindle-like USB dongle.

Google Mobile: Winners and Losers

How would carriers lose is beyond my comprehension; more off-the-shelf wireless devices drives higher wireless/data traffic and more contract signed.

Tight control exercised by carriers? IMO they are just doing quality control. iPhone connection problems in UK were a result of poor hardware design and time constrained validation process.

If you buy an off-the-shelf phone and it works poorly with AT&T, guess who you would blame? AT&T. Not the white-box cellphone maker, even when a proper AT&T validated device is having full bars at the same spot.

Where We're Holding on WiMAX

Xeno,

You are dead wrong on a lot of stuff.

1. WiMax is COMPLETELY different than WiFi, as a) WiFi travels on public spectrum b) cost of deployment is very cheap and can be done by consumers. WiMax travels on specific auctioned spectrum and the cost of deployment several magnitudes higher than WiFi thus ruling out any possibilities of the consumer deployment.

2. As the cost of deployment is totally bared by the carriers, you will have to pay for contracts to use WiMax, similar to your GSM/UMTS/CDMA/HSPA networks.

3. The cost of deploying WiMax network is much higher than deploying HSPA/EVDO network, as HSPA/EVDO are evolutionary network upgrades. WiMax is a complete overhaul at the equipment side (OFDM vs. TDM/CDM). Cell towers can be reused if proper licenses are granted.

Tim,

1. Both LTE and WiMax are not backward compatible with the current cellular networks.
2. Emerging economies could use *FIXED* WiMax to save cost on the backhauul infrastructure, but a) fixed WiMax are not compatible with mobile WiMax and b) *FIXED* WiMax won't provide as much bandwidth capacity compare to fiber.