Archive for the ‘T-Mobile’ Category

Experimental Radio Applications at the FCC

Wednesday, July 18th, 2012

This summarizes a selection from 289 applications for the Experimental Radio Service received by the FCC during April, May, and June 2012. These are related to AM, high-frequency propagation, ultra-wideband, frequency-hopped VHF, managed access, small satellites, radar, MIMO, TV white space, low-power FM, stadium wireless service, GSM, and DTV. The descriptions are sorted by the lowest frequency found in the application.


The Challenge of HD Video Streaming on LTE

Friday, April 22nd, 2011

One of AT&T’s non-redacted arguments in support of its acquisition of T-Mobile USA is that data usage on AT&T’s network is projected to “skyrocket by a factor of eight to ten” over the next five years due in part to streaming HD video. AT&T’s vision is that T-Mobile’s resources would be used to relieve resulting capacity restraints.

Enabling an HD streaming service will be challenging because of the relatively-high and somewhat-constant bit rates required in a fading radio environment. Wondering how practical this is, I recalled a paper Motorola prepared last year reporting some of its simulation results on mobile broadband streaming video.


AT&T and T-Mobile – Interpreting the Spin

Friday, March 25th, 2011

AT&T and T-Mobile have collected their press release and associated documents on one web site. A few points caught my eye.