'Facts and Engineering' to Settle LightSquared's Fate: FCC
The Federal Communications Commission today re-stated that LightSquared will not be allowed to operate its planned Long Term Evolution network if it interferes with GPS systems. The FCC gave LightSquared provisional permission to use L-band satellite spectrum for its terrestrial LTE network — as long as it could prove the network wouldn't interfere with nearby GPS signals. "We're not going to do anything that creates problems for GPS safety and service as we explore technical solutions that will both protect GPS and allow a new service to launch," FCC Chairman Julius Genachowski said during a press conference today. A number of tests conducted by a range of private and government organizations in the last few months, however, have shown that LightSquared's network does in fact harm GPS signals. It renders GPS services useless in areas where the LTE network operates, endangering, among other things, airborne aircraft. LightSquared proposed to switch the channel it intended to use for its network to create a barrier protecting the GPS spectrum. The FCC today said that it does not approve of this "guard band" idea, as it leaves too much spectrum unused. The FCC wants to find a solution that protects the GPS systems while also allowing LightSquared to launch its network, which will pump $14 billion into the infrastructure market over the next eight years. In the end, Genachowski said that it will be the "facts and engineering" that determine the fate of LightSquared's planned LTE network.
May 23, 2019
NOAA, NASA, and the Navy have raised concerns with Congress that the new 24 GHz radio frequency band for 5G may interfere with critical water vapor sensors on US weather satellites. The 24 GHz band is one several new mmWave bands the FCC is making available for mmWave 5G service.
Jun 8, 2018
The FCC this week laid out plans to ensure that the country has enough spectrum prepared for 5G service. The agency published new rules for millimeter wave spectrum in the 24 GHz and 37 GHz bands.
May 2, 2017
T-Mobile today said it plans to use some of its recently acquired 600 MHz spectrum to support a future 5G network. The company successfully won an average of 31 MHz (ranging between 20 MHz and 50 MHz) of the 70 MHz low-band spectrum auctioned off by TV stations and the FCC earlier this year.
Mar 24, 2017
The FCC this week made it easier for carriers to add LTE to their 800 MHz spectrum holdings. Rules concerning the 800 MHz band (CDMA Band Class 0, LTE Band 5) have been in place since 1981 and limit how much power carriers can use to transmit wireless signals across those airwaves.
The FCC needs to do their job
Still to me the FCC should have never let the GPS companies to build so reckless to where their signal is pouring over on the L-band, knowing that in the future this spectrum was going to be wanted/needed to be used. SMH.
"Durr.... what's a guard band?" - Julius
The FCC today said that it does not approve of this "guard band" idea, as it leaves too much spectrum unused.
There are two ways to fix this problem. Period.
1) Replace all the cheap, shoddy, accepting-out-of-band-transmissions-as-legiti mate-signals GPS receivers in the world.
2) Increase the guard band size so that cheapskates like Garmin, TomTom and Trimble can keep their lousy second rate radios functioning in the midst of an L-Band LTE rollout.
How crazy is this? "We won't let LightSquared use any of their spectrum unless they can use all of it!"
But an FCC official speaking at a background briefing for the press said creating such a "guard band" between LightSquared's airwav...
GPS receivers are designed to reject strong out of band signals (such as jamming attempts), but the position quality will go down due to this. Sometimes this is ...
Replace all the cheap, shoddy, accepting-out-of-band-transmissions-as-legiti mate-signals GPS receivers in the world.
I can only disagree with cautious reservation, as I am not an expert on GPS systems, but I have seen it m...