The FCC has taken a critical step in...

The FCC has taken a critical step in allowing the use of time division duplex (TDD) equipment within 700 MHz A block, Access Spectrum said Wednesday. “This decision confirms that TDD equipment, which uses a single frequency for both transmission and reception, can be deployed in full compliance with FCC regulations in the Upper 700 MHz A Block,” the company said in a news release. “By complying with these rules and through the careful design that has gone into its development, TDD equipment can be deployed in the A Block without causing harmful interference to devices in neighboring portions of the spectrum. These developments are crucial steps in showing that enterprises can use the A Block for productive, innovative applications through the secondary spectrum market."