Patent ID: 7792032

Claim:
A digital mobile communications network, the network comprising: a communications network infrastructure, the infrastructure having a plurality of elements, including a plurality of radio communications base stations to communicate with a plurality of mobile communications devices, and having interfaces between said elements; and a plurality of mobile communications devices for radio communications with said base stations; communications between a said mobile communications devices and said base stations, and signals on interfaces within the network infrastructure, comprising traffic and signalling data; wherein at least one of the plurality of mobile communications devices includes a machine-readable memory storing code for controlling the device to: collect data on at least one parameter associated with a first data communications session of said data communications device to provide measurement data; establish a second data communications session for said mobile communications device; combine a characteristic pattern with said measurement data; send said measurement data with said characteristic pattern from said mobile communications device into said communications network infrastructure using said second data communications session; whereby said measurement data is identifiable and retrievable by said characteristic pattern at said network infrastructure interface.