Peter Adderton, the Boost Mobile founder contesting Sprint’s merger with T-Mobile, has come up with a plan to counter some of the harm he believes it would cause to low-income consumers.

Adderton wants federal regulators to require the two cell-phone carriers to sell not only some of their prepaid-service businesses, whose low rates appeal to users with limited means, but about 40 percent of Sprint’s capacity in the 2.5-gigahertz band, which he would seek to buy for development of a prepaid broadband network capable of serving homes.