Patent ID: 7634267

Claim:
A method of providing performance information for a digital mobile phone network, the method comprising: using a digital mobile phone of a subscriber of said network to perform measurements of quality of service (QoS) for real subscriber traffic for a service provided to said subscriber by an operator of said network, said real subscriber traffic not being test traffic; generating QoS data in said digital mobile phone from said quality of service (QoS) measurements; and sending said QoS data into said digital mobile phone network to provide said performance information; wherein said subscriber comprises a human user of said digital mobile phone; and wherein said digital mobile phone includes a processor and memory coupled to said processor, said memory storing program code including code for providing said service to said subscriber and monitoring agent code, and wherein the method further comprises: using said monitoring agent code in said digital mobile phone to monitor said real subscriber traffic for said human user of said service to perform said QoS measurements and to generate said QoS data for sending into said digital mobile phone network; decoding a protocol stack of said traffic to read signalling data associated with said traffic and using said signalling data to analyze said QoS data; and determining radio resources allocated to said real subscriber traffic and displaying said radio resources in association with said QoS data, displaying both together on the same display as a function of time to provide graphical indication of a degree of correlation between a variation in a said QoS measurement of said real subscriber traffic at a time and a variation in said radio resources allocated to said traffic at substantially the same said time, such that it can be determined whether a degradation in Quality of service is linked to said allocating of said radio resources.