back to homepage

Archive for the ‘Wi-Fi’ Category

Positioning LTE Direct against other proximity-aware technologies

LTE Direct, now being standardized in 3GPP as part of Release 12, is a platform for directly discovering and connecting nearby peers. Qualcomm and Samsung sponsored an LTE Direct workshop earlier this year in which several major operators participated. A few days ago Qualcomm made available a white paper, prepared jointly by some of the participants, that summarizes key points from the workshop.

Read the rest of this entry »

Posted by Steven J. Crowley to Bluetooth, Location, LTE Direct, Wi-Fi @ 9:29 am, 08/24/13 | No Comments

Jarvinian files second experimental application for Globalstar/Wi-Fi tests

Last month I wrote about the Jarvinian Wireless Investment Fund and its application to the FCC to test its proposed terrestrial low-power service (TLPS). TLPS would use both the upper 2.4 GHz unlicensed band and Globalstar’s terrestrial-use spectrum (2473-2495 MHz all in all). That test would take place in Cambridge, Massachusetts.

Jarvinian is back with a second application, similar to the first, but with testing taking place at three locations in Silicon Valley (Sunnyvale and Cupertino, California). The supporting technical exhibit appears essentially the same. Different is the equipment to be used. The Cambridge application specified 50 Linksys WRT54GL access points, 10 Ubiquity UniFi access points, 10 Ubiquity XR2 client cards, and 10 Ubiquity SR-71-12 client cards. The Silicon Valley application specifies 10 TP-LINK TL-WA5110G access points,  20 TP-LINK TL-WR1043ND access points, and 20 Ubiquity SR-71-12 client cards.

This application was received by the FCC on March 6. The Cambridge application was received February 13 and is still pending.

Posted by Steven J. Crowley to Experimental, Globalstar, Jarvinian, Unlicensed, Wi-Fi @ 10:26 am, 03/10/13 | 1 Comment

FCC to move on 5 GHz, but no faster nor further than NTIA

At its February 20 meeting, the FCC will likely adopt a Notice of Proposed Rulemaking as a first step toward increasing the amount of spectrum available in the 5 GHz band for unlicensed devices. Up to 195 MHz might be made available, which is a 35% increase over the present 555 MHz.  Chairman Genachowski announced this initiative at CES in January. A leading application for new spectrum would be IEEE 802.11ac, which could have four instead of the current two 160 MHz-wide channels.

Read the rest of this entry »

Posted by Steven J. Crowley to 5 GHz, DARPA, FCC, NTIA, Radar, UAS, Unlicensed, Wi-Fi @ 11:16 am, 02/15/13 | No Comments

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.

Read the rest of this entry »

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.

Read the rest of this entry »

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

Read the rest of this entry »

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.

Read the rest of this entry »

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.

Read the rest of this entry »

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

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.

Read the rest of this entry »

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.

Read the rest of this entry »

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.

Read the rest of this entry »

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.

Read the rest of this entry »

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

Experimental Radio Applications at the FCC

This summarizes a selection of applications for the Experimental Radio Service received by the FCC during January, February, and March 2012. These are related to radar, Amateur Radio, spread spectrum, white space, spacecraft telemetry, propagation testing, satellites, smart grid, femtocells, machine-to-machine communications, ad hoc networks, 4G backhaul, electronic warfare, and robotics.  The descriptions are listed in order of the lowest frequency found in the application.

Read the rest of this entry »

Experimental Radio Applications at the FCC

This summarizes a selection from 215 applications for the Experimental Radio Service received by the FCC during October, November, and December 2011. These are related to AM broadcasting, FM broadcasting, spread spectrum on HF and VHF, unmanned aerial vehicle control, electronic warfare support, small satellites, white space technology, video production, managed access, TV interference, RFID, and radar.  The descriptions are listed in order of the lowest frequency found in the application.

Read the rest of this entry »

Experimental Radio Applications at the FCC

This summarizes a selection of applications for the Experimental Radio Service received by the FCC during June and July 2011. These are related to AM broadcasting, cognitive radio, land vehicle testing, ultra-wideband, ground penetrating radar, synthetic aperture radar, LTE, autonomous aerial refueling, SONAR telemetry, surveillance radar, wind-farm obstruction lighting, seismic activity detection, directed energy weapons, unmanned helicopter flights, precision electronic warfare, shaped-offset QPSK, Ku-band antennas, TV white space, and missile telemetry. The descriptions are sorted by frequency.

Read the rest of this entry »

  • About Steve

    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, "influencing how we perceive developments in mobile, how we learn about it and what we know."
  • Contact

    • E-Mail

    • Telephone

      +1-202-670-5040

    • Address

      Steven J. Crowley, P.E.
      1629 K Street, N.W. Suite 300
      Washington, D.C. 20006

  • Connect

  • Recent Tweets

  • Categories