Patent · US Active

Method and apparatus to facilitate detection of an unauthorized communication system user

US8509735B2 · kind B2 · utility

3Cited by

7References

20Claims

0Family size

Assignee

Motorola Mobility LLC · US

Inventors

Dean E. Thorson · Grayslake, US
William R. Bayer · Palatine, US
Asif Z. Mehdi · Kildeer, US

Key dates

Filing date	Aug 25, 2005
Grant date	Aug 13, 2013
Priority date	—
Expiry date	Nov 21, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2213/13339
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A correlating receiver is used (102) at a code division multiple access base transceiver station to monitor what may comprise possible multi-path versions of a transmission from an authorized communication system user to provide monitoring results. These monitoring results are then used (103) to detect when one of the possible multi-path versions of the transmission was sourced by an unauthorized communication system user while at least another of the possible multi-path versions of the transmission was, in fact, sourced by an authorized communication system user. In a preferred approach the unauthorized communication system user is then identified (104) as being a clone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.