Patent ID: 9560468
Date: 2017-01-31
CPC Classifications: H04L,H04W

Claim:
1. A communication system comprising: a computer having memory and a processor programmed as a remote optimisation server that communicates with a base station that provides a radio link to a mobile user terminal; and a central optimisation server that performs the function of a Radio Network Controller (RNC), communicates with the remote optimisation server via a backhaul network, and communicates with core network elements for data delivery to and from the mobile user terminal, wherein the remote and the central optimisation servers provide access to local data servers, manage communication via the backhaul network, perform data caching, and optimise transmission of data communicated via the backhaul network in order to reduce data transfer via the backhaul network in a manner which is transparent to the mobile user terminal and to the core network elements, and the remote and the central optimisation servers each cache data, exchange cache keys with each other via the backhaul link, and dynamically modify cache parameters including at least one of a cache key generation algorithm, cache chunk size of a data payload, and a cache data retention policy.