公开(公告)号：US20240031812A1

公开(公告)日：2024-01-25

申请号：US17869662

申请日：2022-07-20

Applicant: QUALCOMM Incorporated

Inventor： Uttam VYAS ,  Muralidharan MURUGAN ,  Subrato Kumar DE ,  Rishika TINDOLA ,  Mattias Kaulard HUBER ,  Ankur BHATTACHARJEE ,  Krishna Ram BUDHATHOKI ,  Naresh MARADANA

IPC: H04W12/122 ,  H04W12/082

CPC classification number: H04W12/122 ,  H04W12/082

Abstract: Certain aspects of the present disclosure provide a method of wireless communications at a user equipment (UE), generally including detecting, within a period, a number of indications for modification to system information from a cell and performing one or more actions, after the detection, to prevent the UE from attempting to access the cell.

公开(公告)号：US20210168615A1

公开(公告)日：2021-06-03

申请号：US16699075

申请日：2019-11-28

Applicant: QUALCOMM Incorporated

Inventor： Xuepan GUAN ,  Subrato Kumar DE ,  Nitin PANT ,  Mattias Kaulard HUBER ,  Krishna Ram BUDHATHOKI ,  Ankur BHATTACHARJEE

IPC: H04W12/12 ,  H04W12/00 ,  H04W12/06 ,  H04W60/00 ,  H04W8/26

Abstract: Various embodiments include methods, components and wireless devices configured to identify illegitimate base station. The processor of the wireless device may determine that a device in communication with the wireless device is a suspect base station. The processor may send a fabricated message to the device, and may receive one or more response messages from the device. The processor may determine whether one or more of the response messages received from the device is an appropriate response or an inappropriate response to the fabricated message. In response to determining that a response message is an inappropriate response, the processor may determine that the device is an illegitimate base station. In response to determining that the device is an illegitimate base station, the wireless device may perform a protective action.

公开(公告)号：US20230164198A1

公开(公告)日：2023-05-25

申请号：US17456527

申请日：2021-11-24

Applicant: QUALCOMM Incorporated

Inventor： Ankur BHATTACHARJEE ,  Cherng-Shung HSU ,  Subrato Kumar DE ,  Mattias Kaulard HUBER ,  Krishna Ram BUDHATHOKI

IPC: H04L29/06 ,  H04W76/30

CPC classification number: H04L65/1079 ,  H04W76/30 ,  H04L65/1016 ,  H04L65/1046 ,  H04L65/1096

Abstract: Various embodiments may include methods and systems for avoiding connecting an illegitimate call within a telecommunications network. Various embodiments may include receiving, from a telecommunications network, an incoming call initiating message notifying the first wireless device of an incoming call, in which the incoming call initiating message includes caller information. Some embodiments may further include transmitting a provisional response message including callee information of the first wireless device in response to receiving the incoming call initiating message, transmitting a request message to a second wireless device based on the caller information and the callee information, determining whether the second wireless device initiated the incoming call based on a response message from the second wireless device, if received, in response to the request message, and taking an action to prevent connection of the incoming call in response to determining that the second wireless device did not initiate the incoming call.