US Patent 8407472 Mobile content delivery optimization

A device receives, from a target user device, a request for encrypted content, where the request is sent via a wireless access network. The device identifies a donor user device that is available to provide the encrypted content via a local wireless network connection, where the donor user device has previously downloaded the encrypted content. The device sends, to the target user device and/or the donor user device, instructions to establish a peer-to-peer connection, via the local wireless network, to provide the encrypted content to the target user device, where the encrypted content is decrypted by the target user device using a license key provided over a different network than the local wireless connection.