公开(公告)号：US20240171965A1

公开(公告)日：2024-05-23

申请号：US18058627

申请日：2022-11-23

Applicant: QUALCOMM Incorporated

Inventor： Dhatchaini RAJENDRAN ,  Qin Xue FRANTTI ,  Gurpreet GREWAL ,  Osama LOTFALLAH ,  Vinay PARADKAR ,  Tze Kwan LAU ,  Reza SHAHIDI ,  Flora Pui San CHAN ,  Vikram SINGH

IPC: H04W8/22 ,  H04W4/90

CPC classification number: H04W8/22 ,  H04W4/90 ,  H04W88/06

Abstract: Various embodiments include methods performed by a processor of a computing device for managing Radio Access Technology (RAT) capability during a Wireless Local Area Network (WLAN)-only mode. Various embodiments may include determining whether the computing device is in a WLAN-only mode, and removing circuit-switched RATs from the RAT capability of the computing device in response to determining that the computing device is in the WLAN-only mode. This determination may be made during system bootup of the computing device, upon detecting the change in the WLAN settings and/or based on a notification message from a multimedia subsystem indicating that the computing device is in the WLAN-only mode. Some embodiments may further include transmitting a service request with only packet-switched (PS) RATs included in a RAT priority list to a Non-Access Stratum (NAS) layer of the computing device, in which the PS RATs include Long Term Evolution (LTE) and New Radio (NR).

公开(公告)号：US20230111492A1

公开(公告)日：2023-04-13

申请号：US18063417

申请日：2022-12-08

Applicant: QUALCOMM Incorporated

Inventor： Osama LOTFALLAH ,  Amer CATOVIC ,  Liangchi HSU ,  Lenaig Genevieve CHAPONNIERE ,  Arvind Vardarajan SANTHANAM

IPC: H04W48/04 ,  H04W76/38 ,  H04W48/08

Abstract: The present disclosure relates to a user equipment (UE) dynamically adjusting a non-access stratum (NAS) timer. Specifically, the UE may determine operation in a wideband and support of an extended coverage (EC) restriction. The UE may further identify a duration of a non-access stratum (NAS) timer based on determining operation in the wideband and the EC restriction. The UE may further transmit an access request message to a network entity to trigger a mobility management procedure. The UE may further receive an acceptance message from the network entity indicating an unrestricted or restricted status of the EC restriction. The UE may further apply the duration to the NAS timer based on the acceptance message indicating the unrestricted or restricted status of the EC restriction received from the network entity or a history of EC restrictions of a public land mobile network (PLMN) in a defined geographic area.

公开(公告)号：US20230014944A1

公开(公告)日：2023-01-19

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: H04W36/00

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.

公开(公告)号：US20220141764A1

公开(公告)日：2022-05-05

申请号：US17515209

申请日：2021-10-29

Applicant: QUALCOMM Incorporated

Inventor： Amer CATOVIC ,  Osama LOTFALLAH ,  Lenaig Genevieve CHAPONNIERE ,  Stephen William EDGE ,  Bharat SHRESTHA

IPC: H04W48/18 ,  H04W8/26 ,  H04W60/04

Abstract: A method of wireless communication performs a public land mobile network (PLMN) search for a higher priority PLMN. The PLMN search includes a candidate PLMN having a different mobile country code (MCC) than a serving PLMN. The method switches to the higher priority PLMN when the PLMN search locates the higher priority PLMN. A method determines whether a user equipment (UE) has transitioned between an international area and a national area. The method triggers PLMN selection in response to the UE having transitioned between the international area and the national area.

公开(公告)号：US20210377789A1

公开(公告)日：2021-12-02

申请号：US17303335

申请日：2021-05-27

Applicant: QUALCOMM Incorporated

Inventor： Amer CATOVIC ,  Osama LOTFALLAH ,  Stefano FACCIN ,  Lenaig Genevieve CHAPONNIERE

IPC: H04W28/02 ,  H04W76/10 ,  H04W60/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network, a procedure rejection message for non-cellular access at a non-access stratum (NAS) layer, and provide a first congestion indication from the NAS layer to lower layers for non-cellular access based at least in part on the receiving the procedure rejection message. The UE may refrain, at the lower layers, from initiating establishment of a signaling connection based at least in part on the first congestion indication. Numerous other aspects are provided.

公开(公告)号：US20210153087A1

公开(公告)日：2021-05-20

申请号：US17094500

申请日：2020-11-10

Applicant: QUALCOMM Incorporated

Inventor： Kuo-Chun LEE ,  Cherng-Shung HSU ,  Arvind Vardarajan SANTHANAM ,  Reza SHAHIDI ,  Bhupesh Manoharlal UMATT ,  Subashini KRISHNAMURTHY ,  Qin Xue FRANTTI ,  Daniel AMERGA ,  Osama LOTFALLAH

IPC: H04W36/08 ,  H04W36/00 ,  H04W76/50 ,  H04W76/27 ,  H04W76/25 ,  H04W36/30

Abstract: Some aspects described herein relate to determining to fallback from a first radio access technology (RAT) to a second RAT to perform an emergency call, and deprioritizing, based on the determining to fallback, access to the first RAT to continue to use the second RAT for at least a period of time after the emergency call.

公开(公告)号：US20200260504A1

公开(公告)日：2020-08-13

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 ,  H04W36/00 ,  H04W48/02

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.