The Federal Communications Commission voted 3-1 on Tuesday to undo Obama-era rules intended to help small companies provide faster wireless internet service.

The FCC said the decision will foster more investment and use of the 3.5 gigahertz band, a radio frequency spectrum that can be used for 5G internet service.

But small wireless internet service providers said the decision could shut smaller players out — limiting their ability to bid on licenses and deliver broadband in rural areas.

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