premise: In an attempt to balance the interests, the Commission has decided to retain the sunset date of 2005 as the date after which licensees would not have to pay relocation costs to incumbents but decided that incumbents would not convert to secondary status until and unless an emerging technology licensee required use of the spectrum, regardless of the sunset date.
hypothesis: The 2005 sunset date was chosen to ensure that compliance was fulfilled by 2006 at the latest.