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    Efficient network acquisition scans
    1.
    发明授权
    Efficient network acquisition scans 有权

    公开(公告)号：US12120569B2

    公开(公告)日：2024-10-15

    申请号：US17661138

    申请日：2022-04-28

    Applicant: QUALCOMM Incorporated

    Inventor： Xinning Shen ,  Qin Xue Frantti ,  Osama Lotfallah ,  Yong Xie ,  Sony Akkarakaran ,  Arvind Vardarajan Santhanam ,  Reza Shahidi

    IPC: H04W36/14 ,  H04W48/16

    CPC classification number: H04W36/14 ,  H04W48/16

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect, while operating in an out-of-service (OOS) mode associated with a first network, that a second network satisfies one or more switching criteria. The UE may increase a time duration associated with a periodic network acquisition scan associated with the first network based at least in part on detecting that the second network satisfies the one or more switching criteria. The UE may switch, while operating in the OOS mode, from using the first network for connectivity to using the second network for connectivity based at least in part on detecting that the second network satisfies the one or more switching criteria. Numerous other aspects are described.

    Access barring and radio resource control connection in new radio to long-term evolution voice fallback
    2.
    发明授权
    Access barring and radio resource control connection in new radio to long-term evolution voice fallback 有权

    公开(公告)号：US11071152B2

    公开(公告)日：2021-07-20

    申请号：US16781535

    申请日：2020-02-04

    Applicant: QUALCOMM Incorporated

    Inventor： Min Wang ,  Xipeng Zhu ,  Masato Kitazoe ,  Lenaig Genevieve Chaponniere ,  Zhong Ren ,  Xinli Song ,  Tom Chin ,  Osama Lotfallah

    IPC: H04W76/10 ,  H04W48/02 ,  H04W36/00

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify that a radio resource control connection is to be established for evolved packet system fallback or inter radio access technology fallback from New Radio for a voice call. The UE may determine that an establishment cause received from a network access stratum (NAS) layer does not indicate high priority access. The UE may override the establishment cause such that the establishment cause indicates a mobile originated (MO) voice call based at least in part on determining that the establishment cause received from the NAS layer does not indicate high priority access. The UE may perform an access barring check of an MO voice call based at least in part on overriding the establishment cause such that the establishment cause indicates an MO voice call. Numerous other aspects are provided.

    IMS voice support in network using EPS fallback and having 4G coverage holes
    5.
    发明授权
    IMS voice support in network using EPS fallback and having 4G coverage holes 有权

    公开(公告)号：US12245090B2

    公开(公告)日：2025-03-04

    申请号：US17810954

    申请日：2022-07-06

    Applicant: QUALCOMM Incorporated

    Inventor： Lenaig Genevieve Chaponniere ,  Abhishek Bhatnagar ,  Ajith Tom Payyappilly ,  Osama Lotfallah ,  Vitaly Drapkin

    IPC: H04L65/1016 ,  H04W36/00 ,  H04W36/14

    Abstract: A method is provided. The method may be performed by a UE. The method includes attempting to attach to or to perform a tracking area update in an EPS network to obtain voice services for a number of times. The method includes starting a modified timer based on a failure to attach to or to perform the tracking area update in an EPS network for the number of times and based on a configuration parameter. The modified timer may be modified based on a default timer. The method includes keeping an S1 mode enabled when starting the modified timer. The method includes attempting to obtain the voice services based on one or more access technologies other than EPS. The method includes attaching to or performing a tracking area update in the EPS network to obtain voice services based on the modified timer.

    TECHNIQUES FOR MANAGING SUBSCRIPTION IDENTIFICATION FOR EMERGENCY CALL
    6.
    发明公开
    TECHNIQUES FOR MANAGING SUBSCRIPTION IDENTIFICATION FOR EMERGENCY CALL 审中-公开

    公开(公告)号：US20230362614A1

    公开(公告)日：2023-11-09

    申请号：US18351382

    申请日：2023-07-12

    Applicant: QUALCOMM Incorporated

    Inventor： Xinning Shen ,  Flora Pui San Chan ,  Qin Xue Frantti ,  Osama Lotfallah

    IPC: H04W8/18 ,  H04W4/021 ,  H04W48/18 ,  H04W76/50 ,  H04W4/90 ,  H04W4/16

    CPC classification number: H04W4/90 ,  H04W4/022 ,  H04W4/16 ,  H04W8/183 ,  H04W48/18 ,  H04W76/50

    Abstract: A UE in cellular communication system may be equipped with multiple User Services Identity Modules (USIMs) to support multiple service subscriptions. The UE having multiple service subscriptions may obtain services from one or more wireless networks with each of the subscriptions. When the UE having multiple service subscriptions needs to make an emergency call, the UE may identify and determine a service subscription to make the emergency call, so that the emergency call can be successfully made. The UE may be implemented with a communication processor (modem) and an application processor (AP). Some information that is useful to identify a service subscription more suitable for the emergency call may be available only at the communication processor. Enhanced techniques for identifying and determining a service subscription to make the emergency call from the multiple service subscriptions through interaction between the communication processor and the application processor are disclosed.

    Techniques for managing subscription identification for emergency call
    7.
    发明授权
    Techniques for managing subscription identification for emergency call 有权

    公开(公告)号：US11736922B2

    公开(公告)日：2023-08-22

    申请号：US16934818

    申请日：2020-07-21

    Applicant: QUALCOMM Incorporated

    Inventor： Xinning Shen ,  Flora Pui San Chan ,  Qin Xue Frantti ,  Osama Lotfallah

    IPC: H04W4/90 ,  H04W76/50 ,  H04W4/021 ,  H04W4/16 ,  H04W8/18 ,  H04W48/18

    CPC classification number: H04W4/90 ,  H04W4/022 ,  H04W4/16 ,  H04W8/183 ,  H04W48/18 ,  H04W76/50

    Abstract: A UE in cellular communication system may be equipped with multiple User Services Identity Modules (USIMs) to support multiple service subscriptions. The UE having multiple service subscriptions may obtain services from one or more wireless networks with each of the subscriptions. When the UE having multiple service subscriptions needs to make an emergency call, the UE may identify and determine a service subscription to make the emergency call, so that the emergency call can be successfully made. The UE may be implemented with a communication processor (modem) and an application processor (AP). Some information that is useful to identify a service subscription more suitable for the emergency call may be available only at the communication processor. Enhanced techniques for identifying and determining a service subscription to make the emergency call from the multiple service subscriptions through interaction between the communication processor and the application processor are disclosed.

    Security handling of 5GS to EPC reselection
    10.
    发明授权
    Security handling of 5GS to EPC reselection 有权

    公开(公告)号：US12143870B2

    公开(公告)日：2024-11-12

    申请号：US17662978

    申请日：2022-05-11

    Applicant: QUALCOMM Incorporated

    Inventor： Dominique Francois Bressanelli ,  Osama Lotfallah ,  Cogol Tina ,  Abhishek Bhatnagar ,  Vitaly Drapkin ,  Lenaig Genevieve Chaponniere

    IPC: H04W60/04 ,  H04W36/00

    Abstract: Aspects disclosed herein facilitate security handling of 5GS to EPC reselection are disclosed herein. An example method at a UE includes transmitting a first TAU request, the first TAU request encoded using a first security context associated with a first RAT, the first TAU request being integrity protected using a first uplink count based on the first security context, and the first TAU request including a first set of information including an identifier mapped to a second RAT associated with the first network entity. The example method also includes transmitting a second TAU request, the second TAU request including the first set of information, the second TAU request being integrity protected using a second uplink count. The example method also includes communicating based on a mapped security context based on the first security context and at least one of the first uplink count or the second uplink count.

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