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.

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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.

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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.

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