SUPERVISION SCHEME AND ARRANGEMENT FOR REMOVING OBSOLETE RECORDS IN A DATABASE OF A MOBILE COMMUNICATIONS SYSTEM

摘要

The present invention relates to a supervision scheme and arrangement for removing obsolete records in a database of a mobile communications system, such as a DECT based PSTN/CTM system, particularly in a database handling subscribers. The invention comprises assigning an upper load limit (ULL) and a lower load limit (LLL) to the database (103, 105), assigning a minimum active period (MIP) to the records for at least which period they should not be removed (112, 113), assigning a duration of inactivity indicator (DII) to each record, repeatedly updating the duration of inactivity indicators (DII) for the records so as to indicate the time they have been inactive (114, 115, 201-225), and in dependence of reaching the upper load limit (ULL) removing inactive records in order so that records that have been inactive longest are removed first until reaching the lower load limit (LLL) or until only records which have been inactive for a shorter time than the minimum active period (MIP) remain (301-333).