[20220126]IF12028_航空业对5G无线电信网络推出的担忧.pdf

https:/crsreports.congress.gov January 26, 2022Aviation Concerns Regarding the Rollout of 5G Wireless Telecommunications NetworksThe rollout of fifth-generation (5G) wireless telecommunications networks in the United States has roiled passenger and cargo airlines and other aviation operators over fears that certain mid-band or C-band 5G signals could interfere with aircraft radio altimeters. These concerns prompted the Federal Aviation Administration (FAA) to issue alerts to aircraft operators in late 2021 about possible flight safety risks. FAA asked aircraft operators for related data, urged them to educate pilots about potential disruptions, and prohibited certain flight procedures as a safety precaution. At the urging of FAA, the Department of Transportation, the White House, and some Members of Congress, telecommunications companies agreed to voluntarily delay the rollout of 5G service near airports, originally scheduled for early December 2021, until July 2022, to avoid air travel disruptions. This will give FAA and avionics equipment manufacturers additional time to more thoroughly assess whether C-band 5G signals might interfere with flight operations and whether equipment