| 摘要 |
The invention relates to an arrangement and a method for monitoring traffic flows of mobile users, as well as servers of said arrangement. The arrangement comprises a first server (12) connected to a mobile communications network (10) for receiving traffic report tickets generated from signalling activities of the mobile communications network, each traffic record ticket comprising a plurality of data fields; a second server (15) connected to the first server, and configured to generate a first message that identifies information requested from the first server, and to send said first message to the first server. The first server (12) is configured to extract from the received traffic report tickets a first group of traffic report tickets according to the information in the first message received from the second server (15). According to the invention the first server (12) is configured to generate from the first group of traffic tickets a first result by manipulating in at least said first group of traffic tickets the data fields that unintentionally facilitate associating a mobile user to a specific traffic ticket, and to send the first result to the second server (15). An advantage of the method and arrangement of the invention is that the existing data stream comprising mobile user activities can be utilized for external monitoring of traffic flows of mobile users in one or more defined areas of interest and still the privacy of the subscribers' confidential information can be maintained. <IMAGE>
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