Patent · US Active

User equipment authentication preventing sequence number leakage

US11659387B2 · kind B2 · utility

1Cited by

0References

28Claims

0Family size

Assignee

NOKIA TECHNOLOGIES OY · FI

Inventors

Suresh P. Nair · Whippany, US
Ranganathan Mavureddi Dhanasekaran · Munich, DE
Anja Jerichow · Garching bei München, DE

Key dates

Filing date	Jul 30, 2020
Grant date	May 23, 2023
Priority date	—
Expiry date	Oct 3, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04W12/72
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Techniques for preventing sequence number leakage during user equipment authentication in a communication network are provided. For example, a method comprises obtaining a permanent identifier and an authentication sequence value that are unique to user equipment, concealing the permanent identifier and the authentication sequence value, and sending the concealed permanent identifier and the authentication sequence value in a registration message from the user equipment to a communication network. Then, advantageously, in response to receipt of an authentication failure message from the communication network, the user equipment can send a response message to the communication network containing a failure cause indication without a re-synchronization token.

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