Mobile phone network management systems

A computer system for improving coverage of the RAN of a mobile phone networks, the system comprising:

• an input to receive subscriber data for subscriber accounts of a plurality of present/past subscribers;
• an input to receive geolocated RAN performance data defining a map of one or more quality of service parameters of said RAN over a region of coverage of said RAN of said mobile phone network;
• a system to combine said geolocated RAN performance data defining said map of said one or more quality of service parameters with said subscriber data for predicting problem areas of said coverage of said RAN from said combining;
• and
• an output to output data from said system to combine said geolocated RAN performance data with said subscriber data.

A system for maintaining or optimising a mobile phone network, the system comprising:

• a plurality of data inputs including:
• at least one radio access network (RAN) performance data input to receive performance data relating to performance of a radio access network (RAN) of said mobile phone network,
• at least one subscriber data input billing data input to receive subscriber data relating to said at least one mobile device, and
• at least one RAN performance geolocation data input to receive geolocation data for both said RAN performance data and said subscriber data, and
• at least one subscriber geolocation data input to receive geolocation data for said subscriber data;
• and
• a radio access network (RAN) performance optimisation system coupled to said plurality of data inputs, said radio performance optimisation system comprising a rules engine to operate on said RAN performance data, on said subscriber data, on said RAN performance geolocation data, and on said subscriber geolocation data, in accordance with a set of hierarchical rules to identify a portion of parameter space defined by a combination of said RAN performance data, said geolocation data, and said subscriber data, and to output data defining one or more tasks for network optimisation relating to said identified portion of parameter space, a said task comprising a definition of a potential fault, exception, optimisation or improvement of said network to be investigated by a service engineer.