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公开(公告)号：US20240236864A9
公开(公告)日：2024-07-11
申请号：US18547268
申请日：2022-04-15
Applicant: QUALCOMM Incorporated
Inventor： Pravin Singh , Anshita Agrawal , Raghuveer Ramakrishna Srinivas Tarimala , Liangchi Hsu , Hemanth S , Banuprakash Venkatarathnam Uppacharla
CPC classification number: H04W52/0274 , H04W68/02 , H04W76/28
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support enhanced power saving mode (PSM) for an active time duration of a PSM with extended discontinuous reception (eDRX) configuration in a wireless communication system. In one aspect, a user equipment (UE) is configured to enter a deep sleep mode during inactive times of a PSM, and to operate in eDRX mode during the active times of the PSM. Operating in eDRX mode during the active times includes dividing each of the active time durations into at least one eDRX idle period and at least one eDRX paging period. The UE determines whether a set of criteria for implementing a variant of the PSM is met, and when the set of criteria is met, the UE implements the variant of the PSM, which includes powering down the UE to a deep sleep mode at least during eDRX idle periods.
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公开(公告)号：US20230319626A1
公开(公告)日：2023-10-05
申请号：US18311742
申请日：2023-05-03
Applicant: QUALCOMM Incorporated
Inventor： Kuo-Chun Lee , Arvind Vardarajan Santhanam , Liangchi Hsu , Peter Pui Lok Ang
CPC classification number: H04W28/04 , H04W52/0216 , H04W52/0229 , H04W76/19 , H04W76/28 , H04W76/30
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：US11696173B2
公开(公告)日：2023-07-04
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
CPC classification number: H04W28/04 , H04W52/0216 , H04W52/0229 , H04W76/19 , H04W76/28 , H04L1/0061 , H04W76/11 , H04W76/30
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：US11606807B2
公开(公告)日：2023-03-14
申请号：US17178602
申请日：2021-02-18
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Hwan Joon Kwon , Linhai He , Huilin Xu , Peter Pui Lok Ang , Wanshi Chen , Xipeng Zhu , Liangchi Hsu
Abstract: Aspects described herein relate to configuring and indicating radio resource control (RRC) message types in wireless communications, to support new UE categories, new operation modes, new use cases, or a combination thereof. Configuration and indication methods that may support co-existence of new and legacy RRC message types and/or user equipment (UE) procedures for decoding new RRC message type are also described.
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公开(公告)号：US20220248442A1
公开(公告)日：2022-08-04
申请号：US17167762
申请日：2021-02-04
Applicant: QUALCOMM Incorporated
Inventor： Arnaud Meylan , Sitaramanjaneyulu Kanamarlapudi , Vishal Dalmiya , Kuo-Chun Lee , Shailesh Maheshwari , Vaishakh Rao , Arun Prasanth Balasubramanian , Subashini Krishnamurthy , Leena Zacharias , Sivashankar Sekar , Saket Bathwal , Liangchi Hsu , Raghuveer Ramakrishna Sriniva Tarimala
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a control message indicating a resource configuration for uplink and downlink transmissions. The UE may determine an uplink buffer threshold for a modem buffer of the UE based on the resource configuration. The UE may transmit, to the base station, a feedback request message requesting that the base station provide feedback for at least one previously transmitted uplink packet based on a comparison of an amount of previously transmitted uplink data and scheduled uplink data stored in the modem buffer relative to the uplink buffer threshold. The UE may receive, based on transmitting the feedback request message, a feedback response message corresponding to a first previously transmitted uplink packet of the at least one previously transmitted uplink packet.
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Patent Agency Ranking
公开(公告)号：US11219086B2
公开(公告)日：2022-01-04
申请号：US16495059
申请日：2018-03-23
Applicant: QUALCOMM Incorporated
Inventor： Ashish Shankar Iyer , Omesh Kumar Handa , Chun-Hao Hsu , Nitin Pant , Srinivasan Rajagopalan , Liangchi Hsu , Feilu Liu , Muthukumaran Dhanapal , Alberto Rico Alvarino , Zhibin Dang
Abstract: Aspects of the present disclosure provide techniques to enable enhanced machine type communication (s) (eMTC) and/or narrowband Internet-of-Things (NB-IoT) devices to transition to idle mode after releasing a connection, such as a radio resource control (RRC) connection, more quickly than with previously known techniques. An example method includes determining, based on an indication received in a narrowband signal on a narrowband region of a bandwidth comprising a plurality of narrowband regions, whether to wait for a delay period, determined based on a configuration received from a network entity, before releasing a radio resource control (RRC) connection and releasing the RRC connection at a time in accordance with the determination.
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公开(公告)号：US11006355B2
公开(公告)日：2021-05-11
申请号：US15711412
申请日：2017-09-21
Applicant: QUALCOMM Incorporated
Inventor： Ashish Shankar Iyer , Vasanth Kumar Ramkumar , Naveen Kumar Pasunooru , Srinivasan Rajagopalan , Parthasarathy Krishnamoorthy , Liangchi Hsu
IPC: H04W36/14 , H04W48/18 , H04W24/08 , H04B17/318 , H04W48/00
Abstract: Methods and apparatus for selection of radio access technology (RAT) based on device usage patterns are provided. A User Equipment (UE) obtains information relating to one or more Quality of Service (QoS) metrics for communication of data by the UE. The UE designates a Radio Access Technology (RAT) from a plurality of available RATs as a preferred RAT for the communication, based on the obtained information.
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公开(公告)号：US10257813B2
公开(公告)日：2019-04-09
申请号：US13971017
申请日：2013-08-20
Applicant: QUALCOMM Incorporated
Inventor： Yongsheng Shi , Adarsh Kumar Jinnu , Guruvayurappan Vasudevan , Sathish Krishnamoorthy , Liangchi Hsu , Sitaramanjaneyulu Kanamarlapudi , Mallikarjuna Rao Gorumuchu
Abstract: Various aspects of the present disclosure enable a plurality of mobile devices (UEs) within a cell to spread out in time their respective transmissions of signaling messages, such as cell update messages, when the network enables or disables enhanced uplink (EUL, sometimes referred to as high-speed uplink packet access or HSUPA) while the UE is in the CELL_FACH state, by changing SIB5 or SIB5bis. In this way, the network load may be reduced, and a network blockage that otherwise might result from large numbers of UEs simultaneously transmitting the cell update message can be avoided. According to one example, a network node may be configured to distribute CELL_UPDATE messages or procedures to UEs when the network node enables or disables EUL in CELL_FACH by changing SIB5 or SIB5bis over time to reduce the network load. According to another example, a UE may be configured for utilizing a random timer or back-off timer to defer cell updates.
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公开(公告)号：US20180091278A1
公开(公告)日：2018-03-29
申请号：US15716291
申请日：2017-09-26
Applicant: QUALCOMM Incorporated
Inventor： Sitaramanjaneyulu Kanamarlapudi , Aziz Gholmieh , Liangchi Hsu
CPC classification number: H04L5/0055 , H04L1/1664 , H04L1/1685 , H04L1/1854 , H04L1/1864 , H04L1/1874 , H04L69/22 , H04L69/324 , H04W28/0273 , H04W28/26 , H04W72/14 , H04W76/10
Abstract: Systems and methods adapted to provide transmission of communication acknowledgments to facilitate effective delivery and processing of acknowledgments are disclosed. Embodiments may utilize one or more special definition of header and/or control bits (e.g., length indicator, extension field, etc.), special grants (e.g., a grant to carry control PDUs and/or data PDUs with one or more ACKs), and/or one or more special logical channel/radio bearer (e.g., a logical channel having higher priority than regular data bearer traffic) for delivery of acknowledgments, to expedite processing of the acknowledgments, etc. A device receiving such acknowledgments may identify a packet as including one or more acknowledgment upon decoding/deciphering the received packet, such as by detecting a header field containing special data or by receiving the acknowledgment via a special bearer channel, whereby the acknowledgments may be extracted and delivered to upper layers without waiting for all the in-sequence packets to be received or processed.
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公开(公告)号：US09930530B2
公开(公告)日：2018-03-27
申请号：US14970211
申请日：2015-12-15
Applicant: QUALCOMM Incorporated
Inventor： Kiran KishanRao Patil , Suresh Sanka , Liangchi Hsu , Aziz Gholmieh
Abstract: Methods and apparatuses are provided for synchronizing security parameters between access terminals and a wireless network. An access terminal and network entity can conduct a security mode procedure where the access terminal sends a security mode complete message to the network entity. On receipt of the security mode complete message, the network entity may update to new security parameters. The access terminal may initiate a mobility procedure while the security mode procedure is ongoing and may, as a result, abort the security mode procedure and revert back to the old security parameters. The access terminal can send a mobility update message to the network entity including a dedicated status indicator adapted to inform the network entity that the access terminal has reverted back to the old security parameters. In response to the mobility update message, the network entity may revert back to the old security parameters.
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