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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
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.
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公开(公告)号：US20240422661A1
公开(公告)日：2024-12-19
申请号：US18700119
申请日：2021-12-17
Applicant: QUALCOMM Incorporated
Inventor： Xinning SHEN , Osama LOTFALLAH , Qin Xue FRANTTI , Sunitha SUNDARAM , Sivasubramanian RAMALINGAM , Yi REN , Flora Pui San CHAN , Cogol TINA , Jun DENG , Mudita SAIYADH , Harshpreet SINGH
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform, while camped on a cell of a first radio access technology (RAT), a search for closed access group (CAG) cells of a second RAT different from the first RAT. The UE may populate a database based at least in part on the search, wherein populating the database includes associating the cell of the first RAT with one or more of the CAG cells of the second RAT. The UE may perform a reselection process from the cell of the first RAT to a first CAG cell of the second RAT, of the one or more CAG cells of the second RAT. Numerous other aspects are described.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20230247493A1
公开(公告)日：2023-08-03
申请号：US18299543
申请日：2023-04-12
Applicant: QUALCOMM Incorporated
Inventor： Soo Bum LEE , Adrian Edward ESCOTT , Cogol TINA , Anand PALANIGOUNDER
CPC classification number: H04W36/0022 , H04W36/0038 , H04W48/16 , H04W76/25 , H04W8/08 , H04W36/32
Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for configuring of a NAS COUNT value of a mapped EPS security context associated with an intersystem change of a UE from a 5G system to an EPS. The aspect includes generating, by a UE, a mapped EPS security context associated with an intersystem change of the UE from a 5G system to an EPS, wherein the mapped EPS security context comprises security parameters created based a 5G security context used for the 5G system, the security parameters enabling security-related communications between the UE and a network entity; determining an UL NAS COUNT value and the DL NAS COUNT value for the mapped EPS security context; and transmitting, by the UE, a NAS message to the network entity, the NAS message including the UL NAS COUNT value of the mapped EPS security context.
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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.
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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
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.
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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
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。
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