Sprint has reached a deal to deploy a 4G LTE network with LightSquared, Bloomberg reports. The deal could be worth as much as $20 billion over the next 15 years according to the report. “LightSquared and Sprint will jointly develop, deploy and operate LightSquared’s 4G LTE network,” LightSquared owner Philip Falcone wrote in a letter to Harbinger Capital Partners investors on Friday. “Sprint will become a significant customer of LightSquared’s 4G LTE network.” It is unclear what implications the deal might have for Sprint’s current 4G WiMAX network. A Sprint spokesperson declined to comment.