公开(公告)号：US20210045177A1

公开(公告)日：2021-02-11

申请号：US16533409

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

Inventor： Kuo-Chun LEE ,  Arvind Vardarajan SANTHANAM ,  Subashini KRISHNAMURTHY ,  Vitaly DRAPKIN ,  Daniel AMERGA ,  Kanuganti Rajeswar REDDY ,  Osama LOTFALLAH ,  Shanshan WANG

IPC: H04W76/18 ,  H04W48/02 ,  H04W76/15 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a network configuration procedure has failed a threshold number of times for a first radio access technology (RAT). The UE may perform a first action to prevent execution of the network configuration procedure until a timer has elapsed based at least in part on determining that the network configuration procedure has failed the threshold number of times. The first action may include transmitting a message that indicates that the UE does not have a capability to communicate using the first RAT, barring a cell or a tracking area of the first RAT or a second RAT that assists with establishing a radio access network connection for the first RAT, and/or refraining from reporting measurement results for the first RAT. Numerous other aspects are provided.

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：US20220369176A1

公开(公告)日：2022-11-17

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: 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.

公开(公告)号：US20220078617A1

公开(公告)日：2022-03-10

申请号：US17468331

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Xuepan GUAN ,  Osama LOTFALLAH ,  Vitaly DRAPKIN ,  Cogol TINA ,  Swathi SESHADRI

IPC: H04W12/08 ,  H04W76/10 ,  H04L29/06

Abstract: Techniques and apparatus for optimizing an initial access stratum security mode command procedure are described. One example technique includes sending a first service request to establish a connection with a network. A second service request is sent to the network, upon determining that one or more criteria is satisfied. Another example technique includes sending a first service request to establish a connection with a network and sending a second service request after sending the first service request. The first service request is associated with a first security parameter and the second service request is associated with a second security parameter. A security mode command procedure is participated in with a base station, based on the first security parameter and the second security parameter.

公开(公告)号：US20160309523A1

公开(公告)日：2016-10-20

申请号：US14688851

申请日：2015-04-16

Applicant: QUALCOMM Incorporated

Inventor： Juan ZHANG ,  Ajith Tom PAYYAPPILLY ,  Vinay PARADKAR ,  Ramachandran SUBRAMANIAN ,  Vitaly DRAPKIN ,  Cogol TINA ,  Nathan Edward TENNY

IPC: H04W76/02 ,  H04L29/06

Abstract: Systems, methods, and apparatuses for reducing delays associated with an attachment procedure are disclosed. In accordance with the present disclosure, a user equipment (UE) may initiate an attachment procedure with a network over a non-access stratum (NAS) layer and detect a condition that may delay completion of the attachment. Based on the detection, the UE may determine whether the condition may be resolved before failure in the attachment procedure. If the UE determines that the condition can be resolved before attachment failure, the UE may suspend a timer associated with the attachment procedure at the NAS layer to allow more time for the UE to complete an authentication associated with the attachment. Conversely, if the UE determines that the condition cannot be resolved before attachment failure, the UE may abort the attachment procedure with the network and initiate a fallback attachment procedure with the network via a different base station.

Abstract translation: 公开了用于减少与附接过程相关联的延迟的系统，方法和装置。 根据本公开，用户设备（UE）可以通过非接入层（NAS）层发起与网络的附接过程，并检测可能延迟附件完成的状况。 基于检测，UE可以在附件过程中的故障之前确定该条件是否可以被解决。 如果UE在安装失败之前确定可以解决该情况，则UE可以在NAS层挂起与该附件过程相关联的定时器，以允许更多的时间来完成与附件相关联的认证。 相反，如果UE在安装失败之前确定该条件无法解决，则UE可以中止与网络的连接过程，并且经由不同的基站发起与网络的后退连接过程。

公开(公告)号：US20160099788A1

公开(公告)日：2016-04-07

申请号：US14968189

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Thomas KLINGENBRUNN ,  Lorenzo CASACCIA ,  Bhupesh Manoharlal UMATT ,  Pradeep SAGANE GOWDA ,  Daniel AMERGA ,  Shyamal RAMACHANDRAN ,  Muralidharan MURUGAN ,  Swaminathan SURESHCHANDRAN ,  Dinesh DHARMARAJU ,  Sudhir S. HALBHAVI ,  Vitaly DRAPKIN ,  Raghu Narayan CHALLA

IPC: H04J4/00 ,  H04W76/06 ,  H04W8/24 ,  H04W76/02

CPC classification number: H04J4/005 ,  H04L5/0053 ,  H04W8/245 ,  H04W76/10 ,  H04W76/30

Abstract: Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.

Abstract translation: 本公开的某些方面提出了用于以不同的双工模式独立地发送由用户设备（UE）支持的特征的技术的技术。 UE可以能够以频分双工（FDD）和时分双工（TDD）模式进行通信。 UE可以获得FDD专用特征组指示符（FGI）集合和设置了TDD特定的FGI，并且设置FDD特定FGI集合或TDD特定FGI中的至少一个集合。 此外，UE可以采取一种或多种动作来减少转换到与其当前操作模式不同的操作模式的可能性。

公开(公告)号：US20140099952A1

公开(公告)日：2014-04-10

申请号：US14047673

申请日：2013-10-07

Applicant: QUALCOMM INCORPORATED

Inventor： Abhishek BHATNAGAR ,  Shyamal RAMACHANDRAN ,  Vitaly DRAPKIN ,  Vamsi Krishna DOKKU ,  Hariharan SUKUMAR ,  Zhong REN ,  Vidula Rajeev KURUNDKAR

IPC: H04W60/00

Abstract: Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT.

Abstract translation: 提供了方法和装置，以避免当该RAT网络不可用时，UE尝试附着到RAT网络。 根据某些方面，当RAT网络不可用时，UE可以检测情况，并且采取抢先行动来防止UE尝试在该RAT上获取服务。 例如，UE可以通过发送指示不支持RAT的UE能力消息来有效地从支持的RAT的列表中移除该RAT，这可能阻止UE发起到该RAT的网络发起的转换。 UE还可以从支持的RAT的内部列表中去除不可用的RAT，这可以防止UE发起到该RAT的转换。