Patent ID: 6292793
Filing Date: 2001-09-18
Classification: H04M,Y10S

Abstract:
A method for performing event recordings in a service database system, the database comprising measurement tables (MT) which comprise consecutive rows (Ri), whereby a single row comprises data related to a single measurement object and the measurement objects of one measurement table are of the same type so that they form a measurement group, the method comprising the steps ofreceiving service requests (SR) into the system during whose processing it is necessary to count the number of events occurring per each measurement object,activating the provision of the service as a response to the service request,performing the recording of events by incrementing the measurement object-specific counters for each different event during the processing of the service request for a time determined by a certain, predefined recording interval, andperforming the recording of counter values by storing the measurement object-specific counter values after each recording interval,characterized in that the method further comprises the steps ofmaintaining a single measurement counter copied to N copies on the row of the measurement table so that each of the N counters belongs to a different counter group, whereby N counter groups are located on the row,dividing time domain into consecutive recording intervals (TP) so that only the values of a selected counter group located on the row are incremented during each recording interval, and the counter group to be incremented is changed from one recording interval to another,handling the recording and zeroing of counter values during a recording interval one measurement object at a time by processing the rows of the measurement table one at a time so that the recording and zeroing of the counter values of a single counter group is performed during the recording intervals which are left between the recording intervals during which the counters of the counter group in question are incremented,maintaining in the system measurement object-specific time stamps that indicate at least the latest and second-latest moments when a counter group has been zeroed in the measurement object row, and measurement group-specific time stamps which indicate at least the three latest changing moments of the recording interval, andcomparing the measurement object-specific time stamps with measurement group-specific time stamps, and accepting the counter values of the measurement object as valid, if at least one of the measurement object-specific time stamps is as desired between those measurement group-specific time stamps which limit the interval during which it was last possible to zero the counter group currently to be recorded and zeroed.