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LightSquared Outlines Plan to Fix GPS Interference Issues

Jun 20, 2011, 1:04 PM by Eric M. Zeman

LightSquared today released details of a plan it says will help it circumvent the GPS interference problems that a number of tests have concluded its planned network creates. LightSquared explained that it hoped to use a specific 10MHz block of spectrum in the L-Band for its Long Term Evolution network. It found that operating its network in this band did in fact interfere with GPS receivers. LightSquared has access to a second 10MHz block lower in the L-Band spectrum that it was planning to hold in reserve for when its business outgrew the first 10MHz block. Instead, it will use this second 10MHz block, which it says poses a lower threat to GPS systems, for its initial network launch. It will also dial down the power used in its base station transmitters by 50%, which it says provides another level of protection to GPS systems. As it stands, Inmarsat uses a part of the lower 10MHz band that LightSquared needs, and it has secured permission from Inmarsat to use that spectrum earlier than originally planned. LightSquared will also work with the FCC and other bodies to resolve the GPS issues caused in the upper 10MHz block. The company is due to turn in the results of initial GPS interference testing to the FCC on July 1.

Jan 2, 2022
Verizon and AT&T this morning refused a request by federal transportation officials to delay this week's planned launch of 5G service in the critical new C Band. [Update: By evening, the two companies agreed to a two-week delay.] The FAA (Federal Aviation Administration) insists that the service could potentially interfere with radio altimeters that planes use to measure distance to the ground in poor weather.

Verizon Details C-Band 5G Launch Plans, Promises 10x Data Speed

Jan 4, 2022
Verizon has formally announced plans to launch 5G in the new "C-band" mid-band radio frequencies later his month, and filled in details of what the launch will include. The company is promising to cover 100 million people — nearly 1/3 of the population — with the new network at launch.

FCC Raises Over $22 Billion in Latest Mid-Band 5G Auction

Jan 7, 2022
The FCC's Auction 110 has concluded, with up to 33 bidders paying a total of $22.5 billion for 4,041 licenses out of 4,060 offered. All of the top three national wireless carriers participated in the auction.

Samsung Brings its Military Phones to First Responders

Sep 20, 2023
Samsung has introduced its third generation of Tactical Edition smartphones designed primarily for military personnel. For the first time, they support AT&T's FirstNet network and will be available to first responders.

AT&T, Dish Big Winners in FCC's Latest Mid-Band Auction

Jan 14, 2022
The US FCC (Federal Communications Commission) just announced the winners of its auction 110, for prime new mid-band radio spectrum ideal for 5G. AT&T and Dish spent the most, each splurging for enough licenses to cover the entire continental US.

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Comments

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lte

Jun 20, 2011, 1:58 PM

Filters?

Anyone ever consider they could/should use filters??? duh! That was hard... If they tune them to be sharp enough should not matter...

pickles

you sound like a true authority on the subject...maybe you should call them, and offer them your expertise?

benhxcjammin

Jun 20, 2011, 2:53 PM

maybe..

if this does work and lightsquared can still lease their network, maybe switching to sprint will be worth it! i just want the evo 3d and was wondering if it would still be compatible with lte?

acdc1a

EVO is compatible with WIMAX, not LTE.

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