The National Telecommunications Agency (Anatel) received positions from operators clear, TIM and Alive against the rule that limited the activation of 5G in the 3.5 GHz band near airports to avoid possible interference with aircraft systems.
Anatel’s rule was raised in collaboration with the National Civil Aviation Agency (ANAC) and says that the signal strength of antennas used in pure 5G must be restricted to 67 dBm/100 MHz when operating from 3,300 MHz to 3,600 MHz.
The determination also says that operators must restrict to 65 dBm/100 MHz when operating in the subband above 3,600 MHz. The same rule determined that there would be a review by December 31, which generated a public consultation.
The regulatory agency also determines that the stations must be at least 2.1 km away from the landing strips. However, as pointed out by the TeleSíntese website, operators claim that limitations at airports make 5G network planning difficult.
economy and market
17 Jan
android
16 Jan
clear
Claro sent a position to Anatel in which it states that “users of services in the bands granted at 3.5GHz, contained within this protection zone, will have a perception of inferior quality to those located outside these polygons”.
The company also implies that, if these limitations represent unforeseen costs for the construction of 5G networks, it would be up to the creation of compensation by the federal government to buyers of the 3.5 GHz spectrum.
Alive
In turn, Vivo highlighted that the entire world experience with 5G demonstrates that there is no conflict between the technology and civil aviation, without any incident of interference in radio altimeters being registered in the countries that have the network.
Vivo calls for the end of restrictions currently in force in Brazil and says that in most countries there are no limitations, and that field tests with aircraft in France and Norway have shown that there is no risk of interference from 5G and 3.5 GHz in aircraft.
TIM
Finally, TIM also highlighted what has already been said by other operators and stated that all the arguments for defining the rules for the use of the 3.5 GHz spectrum have already been stepped on and repeated for the definition of the clauses of the auction notice.
TIM also says that there cannot be costs for operators due to this issue, and adds that the agency should not allow “damaging the deadlines established by GAISPI and the 5G Public Notice for the release of the 3.5 GHz band”.
The GSMA, a global entity that brings together mobile operators from around the world, including Claro, TIM and Vivo, also sent a contribution regarding the rule that limits the installation of 5G to 3.5 GHz near airports and followed the same line as the companies Brazilian.
