公开(公告)号：US20230224806A1

公开(公告)日：2023-07-13

申请号：US17998243

申请日：2020-06-19

Applicant: Hao ZHANG ,  Jian LI ,  Dongsheng WANG ,  Haibo LIU ,  ChaoFeng HUI ,  Fojian ZHANG ,  Yuankun ZHU ,  Tianya LIN ,  QUALCOMM Incorporated

Inventor： Hao ZHANG ,  Jian LI ,  Dongsheng WANG ,  Haibo LIU ,  Chaofeng HUI ,  Fojian ZHANG ,  Yuankun ZHU ,  Tianya LIN

IPC: H04W48/18 ,  H04W60/04

CPC classification number: H04W48/18 ,  H04W60/04 ,  H04W84/042

Abstract: Techniques to recover from authentication failure are disclosed. During authentication of a user equipment (UE) with a public land mobile network (PLMN), the UE may receive an AUTHENTICATION REJECT with an extensible authentication protocol (EAP)-failure message. When this occurs, instead of invalidating the universal subscriber identity module (USIM) of the UE, the UE can search for other PLMNs that can potentially pass the authentication challenge. If one is found, the UE can register with the found PLMN.

公开(公告)号：US20230217545A1

公开(公告)日：2023-07-06

申请号：US17999099

申请日：2020-06-30

Applicant: Guojing LIU ,  Dongsheng WANG ,  Chaofeng HUl ,  Fojian ZHANG ,  Haibo LIU ,  Xiaomeng LU ,  Xuesong CHEN ,  QUALCOMM Incorporated

Inventor： Guojing LIU ,  Dongsheng WANG ,  Chaofeng HUI ,  Fojian ZHANG ,  Haibo LIU ,  Xiaomeng LU ,  Xuesong CHEN

IPC: H04W76/50 ,  H04W76/18

CPC classification number: H04W76/50 ,  H04W76/18

Abstract: Aspects of the present disclosure provide techniques for improving emergency calls by a user equipment (UE) in certain scenarios. The techniques generally include receiving a trigger for the UE to perform a circuit switched (CS) emergency call via a first subscriber identity module (SIM) that is serving as a default data subscriber (DDS), attempting the CS emergency call via the first SIM, detecting a failure to perform the CS emergency call via the first SIM, and re-attempting the CS emergency call via a second SIM, in response to the detection.

公开(公告)号：US20230133784A1

公开(公告)日：2023-05-04

申请号：US17914892

申请日：2020-05-19

Applicant: QUALCOMM INCORPORATED

Inventor： Dongsheng WANG ,  Chaofeng HUI ,  Guojing LIU ,  Xiaomeng LU ,  Zongyou XIA ,  Xuesong CHEN

IPC: H04W76/16 ,  H04W8/18 ,  H04W48/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish a first wireless connection associated with a first subscription using a first radio access technology, and may establish a second wireless connection associated with a second subscription using a second radio access technology. The UE may perform a call over the second wireless connection, and identify a loss of the first wireless connection based on performing the call over the second wireless connection. The UE may perform a network discovery procedure associated with the first subscription using the first radio access technology based on the loss of the first wireless connection and a termination of the call over the second wireless connection.