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1. US20200178065 - Methods and Systems for Detecting and Responding to Paging Channel Attacks

Office United States of America
Application Number 16546582
Application Date 21.08.2019
Publication Number 20200178065
Publication Date 04.06.2020
Publication Kind A1
IPC
H04W 8/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
26Network addressing or numbering for mobility support
H04W 68/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
68User notification, e.g. alerting or paging, for incoming communication, change of service or the like
H04W 76/28
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
20Manipulation of established connections
28Discontinuous transmission ; Discontinuous reception
H04W 24/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
08Testing using real traffic
H04W 76/27
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
20Manipulation of established connections
27Transitions between radio resource control states
H04W 76/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
11Allocation or use of connection identifiers
CPC
H04W 68/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
68User notification, e.g. alerting and paging, for incoming communication, change of service or the like
005Transmission of information for alerting of incoming communication
H04W 8/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
8Network data management
26Network addressing or numbering for mobility support
H04W 76/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
10Connection setup
11Allocation or use of connection identifiers
H04W 24/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
24Supervisory, monitoring or testing arrangements
08Testing, ; supervising or monitoring; using real traffic
H04W 76/27
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
20Manipulation of established connections
27Transitions between radio resource control [RRC] states
H04W 76/28
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
76Connection management
20Manipulation of established connections
28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
Applicants QUALCOMM Incorporated
Inventors Mattias Kaulard HUBER
Subrato Kumar De
Ankur Bhattacharjee
Title
(EN) Methods and Systems for Detecting and Responding to Paging Channel Attacks
Abstract
(EN)

Methods for countering a shared paging channel hijack attack. In an example embodiment, a wireless device may monitor the shared paging channel during a paging occasion in a DRX cycle to detect a first IMSI-based paging message in the paging occasion, and continue monitoring for IMSI-based paging in subsequent radio subframes in the paging frame and radio subframes in subsequent radio frames within the DRX cycle to determine whether there are indications of a paging channel hijack attack. In an example embodiment, this monitoring may be to determine whether one or more subframes that are not the paging occasion receive IMSI-based paging messages, in response to which a threat probability may be increased. The wireless device may perform an operation (e.g., an actuation operation such as disabling monitoring of, and preventing connection attempts to, the base station, etc.) to protect against a shared paging channel hijack attack.

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