A communication system, cache, computer readable medium and method for exchanging delay-tolerant data content or in-advance data content between a user terminal and a communication network with which the user terminal communicates. The method includes storing the delay-tolerant data content or in-advance data content into a network cache of the communication network; gathering at the network cache network information related to a status of the communication network; receiving user terminal information at the network cache from a user cache located at the user terminal; and transferring the delay-tolerant data content or in-advance data content from the network cache to the user cache based on the network information and the user terminal information.