Abstract: A method of operating a user equipment configured for use with a communications network is provided. The method comprises measuring a network performance characteristic associated with a measurement period, and identifying, using historical data, an application on the UE responsible for transmitting data to, and/or receiving data from, the communication network in the measurement period. The identity of the identified application is then associated with the network performance characteristic.

Abstract: A method of assessing latency in a communications network comprising attempting to contact from a UE in a cellular network a specific internet resource with a HTTP request addressed to the resource, and capturing data specifying the period between making the attempt and receiving at the UE from the resource a response to the request. Thus data can be obtained from which can be made an end-to-end measurement of the latency affecting a user of a UE. Such measurements can be used by the operator of the communications network to, amongst other things, assess whether the network is performing satisfactorily, to advise users about the performance of the network and to determine that hardware or software within the network needs repair, upgrade or augmentation.