The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 27, 2020

Filed:

Mar. 27, 2020
Applicant:

Exfo Oy, Oulu, FI;

Inventor:

Jukka Kemppainen, Tyrnävä, FI;

Assignee:

EXFO OY, Oulu, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 12/12 (2009.01); H04W 12/10 (2009.01); H04W 12/00 (2009.01); H04W 8/18 (2009.01); H04W 48/02 (2009.01); H04W 64/00 (2009.01);
U.S. Cl.
CPC ...
H04W 12/12 (2013.01); H04W 8/18 (2013.01); H04W 12/0013 (2019.01); H04W 12/1006 (2019.01); H04W 48/02 (2013.01); H04W 64/006 (2013.01);
Abstract

A method and fake base station for detecting subscriber identity are disclosed. Method includes The method includes: capturing at least one wireless message containing an encrypted subscriber identity of a fifth generation mobile phone system transmitted from a mobile subscriber apparatus; transmitting a reject message of the fifth generation mobile phone system for the mobile subscriber apparatus; capturing at least one wireless message of the fourth generation mobile phone system transmitted from the mobile subscriber apparatus; detecting an unencrypted subscriber identity from the at least one captured wireless message of the fourth generation mobile phone system; and transmitting a disconnect message of the fourth generation mobile phone system for the mobile subscriber apparatus.


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