Communication system

A communication system comprising:

• a computer having memory and processor programmed as a remote optimisation server with a base station that provides a radio link to a mobile user terminal;
• and
• a central optimisation server that communicates with the remote optimisation server via a backhaul network and communicates with core network elements for data delivery,
• 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 users and to core network elements,
• the remote optimisation server monitors cache usage and decides on use of the backhaul network accordingly on the basis that more backhaul capacity will be available if the cache usage is high;
• and the remote optimisation server dynamically modifies quality-of-service parameters according to said monitoring of cache usage as an indicator of backhaul network usage, and
• the central optimisation server comprises a backhaul link manager, a user data optimisation function, and a protocol relay function, and the remote optimisation server includes a traffic classifier which performs traffic inspection and separation of the traffic into different categories, and tags the different categories before submitting to the backhaul link manager, the remote optimisation server blocks certain classifications of traffic from backhaul communication at certain times, the backhaul link manager dynamically selects bearers according to traffic classification, and the selection is made according to quality-of-service criteria and user device.

A communication system comprising:

• 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 communicates with the remote optimisation server via a backhaul network and communicates with core network elements for data delivery,
• 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 users and to core network elements,
• the remote optimisation server monitors cache usage, and decides on use of the backhaul network accordingly on the basis that more backhaul capacity will be available if the cache usage is high, and the remote optimisation server dynamically modifies quality-of-service parameters according to said monitoring of cache usage as an indicator of backhaul network usage, and
• the remote and central optimisation servers retrieve data through the core network even if it is delivered from a cache by the remote optimisation server without being sent over the backhaul link, the remote optimisation server delivers said data only after it has been pulled through the core network to the central optimisation server, and the remote optimisation server delays delivery until after receipt of a permission from the central optimisation server.