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公开(公告)号：US11805459B2
公开(公告)日：2023-10-31
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
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.
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公开(公告)号：US20230319657A1
公开(公告)日：2023-10-05
申请号：US17709313
申请日：2022-03-30
Applicant: QUALCOMM Incorporated
Inventor： Arvind Vardarajan Santhanam , Tom Chin , Wei-Jei Song , Rajeev Pal , Kuo-Chun Lee , Mouaffac Ambriss
CPC classification number: H04W36/0085 , H04W24/08
Abstract: This disclosure provides systems, methods, and apparatuses to manage mobility in a wireless communication system. A user equipment (UE) may include a wireless communication apparatus and an application processor (AP). In some aspects, the wireless communication apparatus may monitor cells using a first criterion to detect problematic cells. For example, the first criterion may be associated with a history of ping-pong events or a history of data transmission errors. The wireless communication apparatus may select a cell for communication using a cell selection criteria that deprioritizes selection of problematic cells. In some aspects, the wireless communication apparatus may receive a list of cells from the AP or a server, the list identifying cells considered to be problematic cells. The wireless communication apparatus may adjust the first criterion to expedite detection of problematic cells. In some aspects, the server may aggregate and redistribute information about problematic cells from a plurality of UEs.
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公开(公告)号：US20230232495A1
公开(公告)日：2023-07-20
申请号：US18186681
申请日：2023-03-20
Applicant: QUALCOMM Incorporated
Inventor： Kuo-Chun Lee , Arvind Vardarajan Santhanam , Satashu Goel , Ertugrul Necdet Ciftcioglu , Shanshan Wang , Daniel Amerga , Karthik Venkatram , Juan Zhang
CPC classification number: H04W76/38 , H04W52/0216
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling for communications in a wireless communications system. The control signaling may indicate a first duration for an inactivity timer. The UE may initiate the inactivity timer and a second timer based on identifying a period of inactivity. The second timer may have a second duration that is shorter than the first duration for the inactivity timer. In some examples, the second duration may be based on one or more parameters, such as a display status, a battery status, a scaling factor, the first duration, an application state, or any combination thereof. The UE may release a connection for the communications in the wireless communications system based on an expiration of the second timer, an expiration of the inactivity timer, or a combination thereof.
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公开(公告)号：US20220272568A1
公开(公告)日：2022-08-25
申请号：US17180493
申请日：2021-02-19
Applicant: QUALCOMM Incorporated
Inventor： Kuo-Chun Lee , Arvind Vardarajan Santhanam , Liangchi Hsu , Peter Pui Lok Ang
Abstract: Methods, systems, and devices for wireless communications are described. Techniques are described to enable wake-up signal (WUS) error handling at a user equipment (UE). The UE may detect an error pattern when attempting to receive a WUS from a base station based on a configuration for receiving the WUS. For example, the base station may transmit the configuration for receiving the WUS to a set of UEs including the UE. Based on detecting the error pattern, the UE may perform a mitigation operation based on determining the error pattern, such as waking up multiple cells to receive a transmission indicated by the WUS, transmitting a radio link failure indication to the base station, etc. Additionally or alternatively, the base station may transmit multiple WUSs to the UEs, such as a first WUS according to the configuration and a second WUS according to a reconfiguration.
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公开(公告)号：US11412426B2
公开(公告)日：2022-08-09
申请号：US16990579
申请日：2020-08-11
Applicant: QUALCOMM Incorporated
Inventor： Osama Lotfallah , Kuo-Chun Lee , Zhong Ren , Abhishek Bhatnagar , Arvind Vardarajan Santhanam , Zhiyuan Lu , Lenaig Genevieve Chaponniere
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communication by a user equipment (UE). In one aspect, the UE is configured to generate a handover request related to a wireless communication session between the UE and a wireless local area network (WLAN) device, and establish, independent of an access check, a radio resource control (RRC) connection with a base station. In another aspect, the UE is configured to perform an access check based on a bias value, and establish an RRC connection with a base station based on a result of the access check. The access check performed based on a communication indicator related to a wireless communication session between the UE and a WLAN device.
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Patent Agency Ranking
公开(公告)号：US20210051540A1
公开(公告)日：2021-02-18
申请号：US16990579
申请日：2020-08-11
Applicant: QUALCOMM Incorporated
Inventor： Osama Lotfallah , Kuo-Chun Lee , Zhong Ren , Abhishek Bhatnagar , Arvind Vardarajan Santhanam , Zhiyuan Lu , Lenaig Genevieve Chaponniere
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communication by a user equipment (UE). In one aspect, the UE is configured to generate a handover request related to a wireless communication session between the UE and a wireless local area network (WLAN) device, and establish, independent of an access check, a radio resource control (RRC) connection with a base station. In another aspect, the UE is configured to perform an access check based on a bias value, and establish an RRC connection with a base station based on a result of the access check. The access check performed based on a communication indicator related to a wireless communication session between the UE and a WLAN device.
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147.发明授权公开(公告)号：US10887828B2
公开(公告)日：2021-01-05
申请号：US16052333
申请日：2018-08-01
Applicant: QUALCOMM Incorporated
Inventor： Kuo-Chun Lee , Srinivasan Balasubramanian , Arvind Santhanam , Shan Qing , Xiaoning Lu
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a mode in which the user equipment is enabled, wherein the mode is one of a non-standalone mode, a standalone mode, or a standalone mode and a non-standalone mode; determine whether to prioritize a first set of frequencies associated with a first radio access technology (RAT) or a second set of frequencies associated with a second RAT based at least in part on the mode in which the user equipment is enabled, wherein the first RAT is different from the second RAT; and perform a search of the first set of frequencies or the second set of frequencies based at least in part on whether the first set of frequencies or the second set of frequencies is prioritized. Numerous other aspects are provided.
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公开(公告)号：US10484193B2
公开(公告)日：2019-11-19
申请号：US15516376
申请日：2015-11-02
Applicant: QUALCOMM Incorporated
Inventor： Jun Wang , Xipeng Zhu , Xiaoxia Zhang , Kuo-Chun Lee
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a service through an MBMS session. The apparatus receives a first notification of an upcoming suspension of the MBMS session. The apparatus requests establishment of a unicast bearer prior to the upcoming suspension of the MBMS session upon receiving the first notification. The apparatus receives a corresponding unicast version of the service of the MBMS session via unicast when the unicast bearer is established. In an aspect, the first notification may be received during a first MCCH modification period, the corresponding unicast version of the service is received via unicast during a second MCCH modification period. In an aspect, the apparatus may further receive a second notification that the MBMS session is suspended during the second MCCH modification period.
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149.发明申请公开(公告)号：US20190069226A1
公开(公告)日：2019-02-28
申请号：US16052333
申请日：2018-08-01
Applicant: QUALCOMM Incorporated
Inventor： Kuo-Chun Lee , Srinivasan Balasubramanian , Arvind Santhanam , Shan Qing , Xiaoning Lu
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a mode in which the user equipment is enabled, wherein the mode is one of a non-standalone mode, a standalone mode, or a standalone mode and a non-standalone mode; determine whether to prioritize a first set of frequencies associated with a first radio access technology (RAT) or a second set of frequencies associated with a second RAT based at least in part on the mode in which the user equipment is enabled, wherein the first RAT is different from the second RAT; and perform a search of the first set of frequencies or the second set of frequencies based at least in part on whether the first set of frequencies or the second set of frequencies is prioritized. Numerous other aspects are provided.
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公开(公告)号：US20190069210A1
公开(公告)日：2019-02-28
申请号：US16109009
申请日：2018-08-22
Applicant: QUALCOMM Incorporated
Inventor： Kuo-Chun Lee , Srinivasan Balasubramanian , Vitaly Drapkin , Arvind Vardarajan Santhanam , Abhishek Bhatnagar , Haris Zisimopoulos
Abstract: Methods, systems, and devices for wireless communication are described for inter-RAT mobility from a first radio access technology (RAT) to a second RAT, including cases in which different RATs correspond to different generations of networks. Approaches described herein include providing a preemptive indication of inter-RAT mobility for one or more geographic areas such to a user equipment (UE). The UE can thus use a mobility procedure to transition from the first RAT to the second RAT that is supported in the UE's location without first attempting an unsupported mobility procedure, reducing transition latency.
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