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：US20220167226A1

公开(公告)日：2022-05-26

申请号：US17450275

申请日：2021-10-07

Applicant: QUALCOMM Incorporated

Inventor： Tom CHIN ,  Rajeev PAL ,  Kuo-Chun LEE ,  Arvind Vardarajan SANTHANAM ,  Wei-Jei SONG ,  Abhishek BHATNAGAR ,  Min Wang

IPC: H04W36/00 ,  H04W72/04

Abstract: Aspects are provided which allow a UE to disable measurements of reference signals from 5G base stations which are inapplicable to EN-DC. The UE may receive a reference signal from a base station. The UE may identify a frequency range. The UE may determine whether to measure the reference signal based on whether the reference signal is within the identified frequency range. The UE may refrain from measuring the reference signal in response to the determination. The UE may also refrain from measuring the reference signal in response to a SIB received at the UE not including a ULI, or in response to a frequency associated with the reference signal not being in a list of supported bands for EN-DC. As a result, inter-RAT handovers from LTE base stations to 5G base stations are prevented, UE power consumption is thereby saved, and support for EN-DC is maintained.

公开(公告)号：US20230189371A1

公开(公告)日：2023-06-15

申请号：US17997088

申请日：2020-06-21

Applicant: QUALCOMM INCORPORATED

Inventor： Sohrab AHMAD ,  Bhanu Kiran JANGA ,  Osama LOTFALLAH ,  Abhishek BHATNAGAR ,  Quanling ZHANG

IPC: H04W76/18

CPC classification number: H04W76/18

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently falling back from one RAT to another RAT while maximizing the services available to a UE. When a request from a UE for communicating with a base station using one RAT is rejected by a network node for unexpected causes, the UE may use the techniques described herein to fallback to an appropriate RAT. For instance, after receiving a response indicating that a request including fifth generation (5G) parameters is rejected, the UE may drop the 5G parameters and fall back to fourth generation (4G), rather than falling back to second generation (2G) or third generation (3G). The unexpected causes may be preconfigured and may be determined based on a number of factors, including a subscription of the UE, a public land mobile network (PLMN) associated with the network node, etc.

公开(公告)号：US20230010736A1

公开(公告)日：2023-01-12

申请号：US17650169

申请日：2022-02-07

Applicant: QUALCOMM Incorporated

Inventor： Adam HEBEIN ,  Manisha PRIYADARSHINI ,  Qin Xue FRANTTI ,  Brian A’HEARN ,  Rishav REJ ,  Qingxin CHEN ,  Uttam PATTANAYAK ,  Vikram SINGH ,  Bhupesh Manoharlal UMATT ,  Carlos Marcelo Dias PAZOS ,  Cherng-Shung HSU ,  Osama LOTFALLAH ,  Flora Pui San CHAN ,  Abhishek BHATNAGAR ,  Reza SHAHIDI ,  Cheol Hee PARK ,  Subashini KRISHNAMURTHY ,  Sandeep RAMANNAVAR ,  Jun HU ,  Shailesh MAHESHWARI ,  Thomas CHRISTOL ,  Hemanth Kumar RAYAPATI ,  Krishna Chaitanya MUKKERA

IPC: H04W76/15 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, using a first subscription of the UE, a first communication connection associated with a first service. The UE may establish, using a second subscription of the UE, a second communication connection associated with a second service. The UE may operate in a dual subscriber identity module (SIM) dual active (DSDA) mode based at least in part on establishing the first communication connection and establishing the second communication connection. The UE may perform an action to maintain concurrent services, including the first service and the second service, while operating in the DSDA mode. Numerous other aspects are described.

公开(公告)号：US20230011024A1

公开(公告)日：2023-01-12

申请号：US17650435

申请日：2022-02-09

Applicant: QUALCOMM Incorporated

Inventor： Adam HEBEIN ,  Qin Xue FRANTTI ,  Brian A'HEARN ,  Rishav REJ ,  Qingxin CHEN ,  Uttam PATTANAYAK ,  Vikram SINGH ,  Bhupesh Manoharlal UMATT ,  Carlos Marcelo Dias PAZOS ,  Osama LOTFALLAH ,  Flora Pui San CHAN ,  Manisha PRIYADARSHINI ,  Abhishek BHATNAGAR ,  Reza SHAHIDI ,  Cheol Hee PARK

IPC: H04W48/16 ,  H04W8/18 ,  H04W52/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect that a first subscription, of a plurality of subscriptions associated with the UE, is associated with an active service on a first cellular network. The UE may search, for a second subscription of the plurality of subscriptions, for radio access technologies (RATs) and frequency bands that are compatible with a dual active mode of the UE. In some aspects, the UE may detect that the active service on the first cellular network has ended. Accordingly, the UE may search, for the second subscription, for RATs and frequency bands that are compatible with the dual active mode of the UE and for RATs and frequency bands that are incompatible with the dual active mode, before expiry of a timer associated with a power saving state. Numerous other aspects are described.

公开(公告)号：US20200077268A1

公开(公告)日：2020-03-05

申请号：US16679707

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Swathi SESHADRI ,  Cogol TINA ,  Abhishek BHATNAGAR ,  Mona AGRAWAL

IPC: H04W12/08 ,  H04W48/16 ,  H04L29/06 ,  H04W60/00 ,  H04W12/00 ,  H04W4/021 ,  H04W12/12

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be configured to include procedures to mitigate denial of service (DoS) attack by a rogue base station when the initial non-access stratum (NAS) messages between the UE and a mobility management entity (MME) is unprotected. UE may maintain a temporary forbidden network list, which resides outside a subscriber identity module (SIM), and update a forbidden network list, which resides on the SIM, only under certain conditions. For example, a visited network, from which the UE receives a reject message, may be added to the forbidden network list on the SIM only when a counter associated with the visited network is equal to a maximum counter value, which is configured by the UE.

公开(公告)号：US20180063708A1

公开(公告)日：2018-03-01

申请号：US15246322

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Yongsheng SHI ,  Abhishek BHATNAGAR ,  Eswar Kumar MOYYA ,  Uttam PATTANAYAK ,  Ajantha DE SILVA

IPC: H04W12/06 ,  H04L29/06

CPC classification number: H04W12/06 ,  H04L63/0853 ,  H04W8/18 ,  H04W12/00405

Abstract: A method for optimizing remote authentication of a virtual subscriber identity module (VSIM) for a multi-subscriber identity module (SIM) multi-standby (MSMS) mobile communication device includes: receiving a VSIM authentication request from a VSIM network; determining whether a previous packet switched (PS) connection between the VSIM and the VSIM network is available; in response to determining that the previous PS connection between the VSIM and the VSIM network is available, performing VSIM authentication using the previous PS connection between the VSIM and the VSIM network.

公开(公告)号：US20240323677A1

公开(公告)日：2024-09-26

申请号：US18187074

申请日：2023-03-21

Applicant: QUALCOMM Incorporated

Inventor： Kuo-Chun LEE ,  Arvind Vardarajan SANTHANAM ,  Shanshan WANG ,  Liangchi HSU ,  Abhishek BHATNAGAR ,  Prashanth MYSORE ,  Priya RAJAN ,  Karthik VENKATRAM ,  Daniel AMERGA ,  Osama LOTFALLAH ,  Lenaig Genevieve CHAPONNIERE

IPC: H04W12/037 ,  H04L9/06 ,  H04L9/08

CPC classification number: H04W12/037 ,  H04L9/0618 ,  H04L9/0819

Abstract: Techniques are provided for receiving encrypted positioning assistance data, requesting and obtaining cipher keys to decrypt the positioning assistance data. An example method for transmitting a cipher key request includes receiving cipher key information including a start time value, a duration value, and an advance time value, determining an advance time duration that is equal to a sum of the start time value and the duration value minus the advance time value, and transmitting the cipher key request within the advance time duration.

公开(公告)号：US20190053054A1

公开(公告)日：2019-02-14

申请号：US16031803

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

Inventor： Swathi SESHADRI ,  Cogol TINA ,  Abhishek BHATNAGAR ,  Mona AGRAWAL

IPC: H04W12/08 ,  H04W48/16

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be configured to include procedures to mitigate denial of service (DoS) attack by a rogue base station when the initial non-access stratum (NAS) messages between the UE and a mobility management entity (MME) is unprotected. UE may maintain a temporary forbidden network list, which resides outside a subscriber identity module (SIM), and update a forbidden network list, which resides on the SIM, only under certain conditions. For example, a visited network, from which the UE receives a reject message, may be added to the forbidden network list on the SIM only when a counter associated with the visited network is equal to a maximum counter value, which is configured by the UE.

公开(公告)号：US20170230870A1

公开(公告)日：2017-08-10

申请号：US15019691

申请日：2016-02-09

Applicant: QUALCOMM Incorporated

Inventor： Yongsheng SHI ,  Uttam PATTANAYAK ,  Shivank NAYAK ,  Abhishek BHATNAGAR ,  Debesh Kumar SAHU ,  Raja Rajeswari CHITIKE

IPC: H04W36/00 ,  H04W60/06

CPC classification number: H04W36/0022 ,  H04W4/12 ,  H04W8/183 ,  H04W36/14 ,  H04W60/06 ,  H04W88/06

Abstract: A method for performing data service switch for a mobile communication device having a first subscription configured as a dedicated data subscription (DDS) and a second subscription includes: receiving a multimedia messaging service (MMS) message notification on the second subscription; calculating an approximate transfer time for receiving the MMS message; determining the that the approximate transfer time is less than a specified time; in response to determining that the approximate transfer time is less than the specified time, performing at the mobile communication device a local packet switched (PS) service detach procedure for the first subscription; performing a circuit switched (CS) service attach procedure for the first subscription; and performing a PS service attach procedure for the second subscription.