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Wireless investment fund seeks FCC authority to test Globalstar’s proposed terrestrial low-power service

Yesterday the FCC received an application for experimental radio license from the Jarvinian Wireless Innovation Fund. Among other activities, the fund is working with Globalstar in its effort to establish a so-called terrestrial low-power service (TLPS).  Globalstar petitioned the FCC to create such a service last November. The idea is to take the upper 2.4 GHz unlicensed band that isn’t now available for Wi-Fi, combine it Globalstar’s terrestrial-use spectrum, and create a new service operating on 2473-2495 MHz. This corresponds to IEEE 802.11 (Wi-Fi) channel 14, which can’t be used in the U.S. as it overlaps with Globalstar’s spectrum. Unlike Wi-Fi, TLPS would be managed to control interference.

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Posted by Steven J. Crowley to Experimental, Globalstar, IEEE 802.11, Jarvinian, Satellite, Wi-Fi @ 3:01 pm, 02/14/13 | No Comments

A crucial engineering fact I’m not hearing from municipal TV white space proponents

Here it is: At 600 MHz, interference travels farther than it does at higher frequencies, all else equal.

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Posted by Steven J. Crowley to Municipal, Unlicensed, White Space, Wi-Fi @ 8:13 am, 02/11/13 | 3 Comments

Radio interference suspected of causing inauguration Jumbotron problems

During the inauguration there were press reports of Jumbotron problems — pixelated video and distorted audio — at the Washington Monument.

Yesterday the Washington Post reported that the problems could have been due to “interference with a microwave signal” that brings video and audio to the Jumbotrons.

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Posted by Steven J. Crowley to 2200-2290, Audio, Interference, Video @ 8:52 am, 01/27/13 | 1 Comment

Google responds to FCC request for more info about experimental radio project

In my post about Google’s latest experimental radio application, I observed it seemed incomplete. Yesterday, the FCC sent Google, through its attorney, an email asking for the missing information:

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Posted by Steven J. Crowley to Clearwire, Experimental, Google, LTE, Small Cells, UMTS @ 2:38 pm, 01/26/13 | No Comments

Google’s “confidential” test might be a super-dense LTE network using Clearwire’s spectrum

Google filed an application at the FCC last week seeking permission to conduct testing of an experimental radio system.  Portions of the application and accompanying exhibits have been designated confidential and are thus not available to the public. Even the request for confidential treatment has been redacted. Let’s try to infer what’s happening from the information available.

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Posted by Steven J. Crowley to Clearwire, Experimental, Google, LTE, Small Cells @ 1:32 pm, 01/23/13 | No Comments

FCC’s 5 GHz spectrum initiative could mean more and wider channels for IEEE 802.11ac

FCC Chairman Julius Genachowski yesterday announced an initiative to make 195 MHz of more spectrum available for Wi-Fi in the 5 GHz band.

The last time more spectrum for Wi-Fi was made available in this range was in 2003, when an FCC increased the then 300 MHz bandwidth to 555 MHz. As the document in that last link shows, the 5 GHz band is not as neat as the 2.4 GHz band, with other services, such as radar, requiring protection. These coexistence issues will have to be looked at again.

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Posted by Steven J. Crowley to 5 GHz, Qualcomm, Spectrum, Uncategorized, Unlicensed, Wi-Fi @ 8:18 am, 01/10/13 | No Comments

Experimental Radio Applications at the FCC

This summarizes a selection of applications for the Experimental Radio Service received by the FCC during September-December 2012. These are related to LF and HF propagation, cognitive radio, satellite telemetry, ultra-wideband (UWB), ground-penetrating and synthetic-aperture radar, mobile broadband, aerial communications (balloons), LTE, managed access, military communications, Wi-Fi, GPS, sensor networks, and MVDDS. The descriptions are sorted by the lowest frequency in the application.

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Deloitte’s mobile-broadband spectrum policy primer

Deloitte recently issued a new report on mobile broadband. It positions the U.S. as number-one and offers tips to keep it there, some more useful than others. There’s not much new for the mobile broadband expert. The collection of various mobile-spectrum policy issues into one document, however, could be useful to some, especially to those new to the field. Early on, Deloitte promises suggestions for improving U.S. spectrum policy;  the suggestions, however, turn out to be mostly things we’ve heard before. There are a few problems with the report, discussed below, that readers should keep in mind.

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Posted by Steven J. Crowley to Mobile Broadband, Policy, Small Cells, Spectrum, Wi-Fi @ 6:00 am, 10/15/12 | No Comments

Experimental radio applications at the FCC

This summarizes a selection of applications for the Experimental Radio Service received by the FCC during July and August, 2012. These are related to medium-frequency communications, meteor radar, space-to-space communications, UAV communications, synthetic aperture radar, TV white space, 600 MHz LTE, disaster communications, cellular content caching, GSM, passive intermodulation distortion, ultra-wideband, TDD, ground-mapping radar, Doppler radar, and ground surveillance radar.  The descriptions are sorted by the lowest frequency in the application.

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Qualcomm outlines vision of 1000x mobile capacity increases

In the first of a series of webinars, Qualcomm today began reporting on the results of its “1000x Data Challenge,” an initiative to meet what it sees as the need, someday, to increase mobile capacity 1000-times. The webinar, conducted by Rasmus Hellberg, Qualcomm’s Senior Director of Technical Marketing, was an overview. He discussed spectrum, small cells, and other techniques to increase capacity. More-detailed webinars on each of these are forthcoming: spectrum initiatives on  September 18, small cells and heterogeneous networks on October 18, and more efficient networks, applications, and devices on November 14. Today’s webinar should be posted tomorrow, and a white paper should appear in about a week.

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Why I doubt FaceTime will crash mobile networks

IntoMobile suggests mobile networks could “crash” or “crumple” under the pressure of FaceTime demand. I think they’ll be OK, mainly for cultural reasons.

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Posted by Steven J. Crowley to 3G, 4G, FaceTime, Uncategorized, Video @ 9:48 am, 08/27/12 | No Comments

New Video Compression Standard Doubles Efficiency

Ericsson discusses the recent meeting of the Moving Picture Experts Group (MPEG), which issued a draft international standard of the new High Efficiency Video Coding (HEVC) video-compression format. It’s twice as efficient as current standards. Twice as efficient means half the bits, which means half the spectrum capacity is required for the same video quality.

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Posted by Steven J. Crowley to MPEG, Source Coding, Video @ 10:28 am, 08/14/12 | No Comments

Experimental Radio Applications at the FCC

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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Google Finishing Development of Personal Communication/Entertainment Device

It appears Google is finalizing the design of what it variously calls, in recent FCC filings, a “personal communication device” or an “entertainment device.” It further appears it would be an unlicensed device supporting both Wi-Fi and Bluetooth, and operate at low power in the bands 2400-2483 MHz and 5180-5825 MHz.

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Posted by Steven J. Crowley to Bluetooth, Equipment Authorization, Google, Unlicensed, Wi-Fi @ 6:47 am, 07/18/12 | No Comments

4G Americas Scenario Shows Mobile Data Growth Tapering Off

4G Americas, a wireless industry trade association representing the 3GPP family of technologies, has released a report looking at broadband devices and applications, and their impact on HSPA and LTE networks. There’s quite a bit of interesting information; here I highlight the discussion on mobile broadband offload and mobile data growth.

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Posted by Steven J. Crowley to 3G, 3GPP, 4G, Femtocells, HSPA, LTE, Mobile Broadband, Mobile Services, Small Cells, Spectrum, Wi-Fi @ 11:00 pm, 05/16/12 | No Comments

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    Steve is a consulting wireless engineer who provides support for projects worldwide involving technology and competitive analysis, standardization, regulation, business development, patent portfolio management, and corporate communication. Clients include vendors, service providers, asset managers, government agencies, and other professional service providers. Named by Forbes as a top 10 mobile influencer on the basis of reach, resonance, and relevance in the industry.
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