Recovery procedures between subscriber registers in a telecommunications network

A secondary subscriber register arranged for holding subscriber data for subscribers in a mobile network, the subscriber data comprising subscription data and location data for each subscriber, the secondary subscriber register comprising:

• an input unit arranged for receiving from a clustered subscriber register, which holds subscriber data her a subscriber in the mobile network, a subscriber identity for the subscriber, an identifier of the clustered subscriber register, and an identifier of a processing blade handling the subscriber at the clustered subscriber register;
• a storage arranged for storing subscriber data, the subscriber identity, the identifier of the clustered subscriber register and the identifier of the processing blade for the subscriber;
• a processor arranged for processing a course of actions to be taken for the subscriber depending on the received subscriber data;
• and
• an output unit arranged for submitting towards the clustered subscriber register an upgraded operation to process a course of actions tor the subscriber, the upgraded operation including the subscriber identity for the subscriber and the identifier of the processing blade handling the subscriber.

A method of updating subscriber data between a clustered subscriber register and a secondary subscriber register, both holding subscriber data for subscribers in a mobile network, the subscriber data comprising subscription data and location data, the method comprising the steps of:

• receiving at the clustered subscriber register location data for a subscriber from a serving node in the mobile network;
• determining at a distributor of the clustered subscriber register a processing blade currently handling the subscriber among a plurality of processing blades, each processing blade handling a number of subscribers and including a storage and a processor;
• processing at the processor included in the processing blade, a course of actions to be taken for the subscriber depending on the subscriber data;
• submitting from the clustered subscriber register towards the secondary subscriber register a subscriber identity for the subscriber, an identifier of the clustered subscriber register, and an identifier of the processing blade handling the subscriber at the clustered subscriber register;
• and
• receiving at the clustered subscriber register from the secondary subscriber register an ungraded operation to process a course of actions for the subscriber, the upgraded operation including the subscriber identity for the subscriber and the identifier of the processing blade handling the subscriber.