Method and apparatus to detect fraudulent calls in a radio network
US6295446A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1998 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Oct 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/126
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for detecting fraud in a radio network includes a Mobile Station (MS) having a nonvolatile memory to store an electronic identification number and a first calling event table. The invention also includes a Mobile Switching Station (MSC) or Home Location Register (HLR) having a second calling event table that contains a mirror image of the first calling event table (if no fraud has occurred). Each calling event table contains outgoing call event data for the MS. The invention also includes a method for detecting fraud in a radio network comprising the steps of retrieving calling event data from the MSC for the MS; querying the MS using the retrieved calling event data; sending a response message from the MS to the MSC; comparing the query data to the response message; and detecting fraud if the calling event data does not match the response message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.