At Broadcasting & Cable, John Eggerton has an update on the FCC’s spectrum auction plans:

The FCC is going through “a whole bunch of edits and questions” from commissioners’ offices on the upcoming spectrum auction framework notice of proposed rulemaking, which is scheduled for a vote Friday, Sept. 28. Those questions include the wisdom of holding simultaneous auctions, as the FCC is proposing.

According to a source familiar with the edit chain, questions include whether the FCC is setting aside too much spectrum for unlicensed use, and whether it might make more sense to do the auctions sequentially.

Right now, the Commission is aiming to have auctions completed — and much-needed airwaves available for wireless use — by the end of 2014.