Bankrupt wireless venture LightSquared on Tuesday revealed a new restructuring proposal that would cede 74 percent of its equity to a new investor group that includes JPMorgan Chase & Co., Cerberus Capital Management and Fortress Investment Group, Reuters reported yesterday. Phil Falcone's Harbinger Capital Partners, which now controls LightSquared, would retain about 12.5 percent of the new equity, according to Joshua Sussberg, a lawyer for a committee overseeing LightSquared's restructuring efforts. JPMorgan, Cerberus and Fortress would supply $1.45 billion in new liquidity, with other investors in the group chipping in another $300 million. Existing lenders with around $1 billion in debt would be repaid in cash.