Method for performing replacement of a subscriber identity module (SIM) in a mobile communications network
US6285869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1998 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/72
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a mobile communications network, each subscriber is allocated a unique identity code and is provided with a card (a SIM card) bearing that code which provides subscriber access to the system. A list of identity codes together with corresponding subscriber details are stored in a first store. When a card is to be replaced, a new identity code is created for the subscriber and is stored in the first store and in a second store. A mapping is provided between the new identity code and the corresponding existing subscriber identity code. The new identity code is then associated with the corresponding subscriber details and is activated while the existing code is de-activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.