During its Oct. 17 meeting, the FCC is scheduled to vote on a proposal to allow AT&T to use the Wireless Communications Service (WCS) spectrum in the 2.3GHz band in a way that doesn't interfere with Sirius XM Radio, which uses nearby spectrum. In June, AT&T and Sirius to allow mobile broadband on the spectrum and minimize interference.

The FCC proposal closely follows the recommendations from AT&T and Sirius, according to a person familiar with the plan.

Among other things, the proposals from AT&T and Sirius would prohibit mobile and portable transmitters in part of the WCS spectrum, and they would lengthen the planned build-out of LTE service in the WCS spectrum.

An AT&T spokesman didn't immediately return a message seeking comment on the FCC's agenda item.

This would be the second recent action taken by the FCC to allow mobile broadband in the WCS band. In May 2010, the agency mobile broadband providers to offer services on 25MHz of the band. That vote opened the door to eventual mobile broadband uses on that portion of the spectrum, in addition to fixed wireless services, which had previously been permitted.