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公开(公告)号：US20210014785A1
公开(公告)日：2021-01-14
申请号：US16509198
申请日：2019-07-11
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar Vaze , Arvind Vardarajan Santhanam , Yongle Wu , Raghu Narayan Challa
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of base stations that are part of a synchronization group, where at least two of the base stations in the set of base stations operate on different frequencies. In some cases, the UE may identify the set of base stations based on an indication transmitted by a serving base station for the UE. Additionally, once the synchronization group is identified, the UE may schedule synchronization signals together from the set of base stations. For example, after identifying the set of base stations, the UE may identify a measurement timing window associated with the synchronization group and measure a respective synchronization signal for each base station within the measurement timing window. Accordingly, the UE may then transmit a measurement report to the serving base station that includes the synchronization signal measurements.
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公开(公告)号：US12068829B2
公开(公告)日：2024-08-20
申请号：US17949044
申请日：2022-09-20
Applicant: QUALCOMM Incorporated
Inventor： Arash Ebadi Shahrivar , Peter Pui Lok Ang , Chinmay Shankar Vaze , Brian Clarke Banister , Raghu Narayan Challa , Alexei Yurievitch Gorokhov , Aamod Khandekar , Chun-Hao Hsu , Gautham Hariharan , Ambarish Tripathi , Shailesh Maheshwari , Sivaguru Narasareddy
IPC: H04B7/08
CPC classification number: H04B7/08
Abstract: Methods, systems, and devices for wireless communications are described that provide for receive chain selection at a user equipment (UE) with efficient switching between a reduced number of receive chains and an increased number of receive chains for downlink communications based on conditions at the UE. A UE may adaptively adjust the number of active receive chains based on downlink grant activity, channel conditions, network parameters, or any combinations thereof. An estimator block at the UE may determine to adjust the number of receive chains based on a number of downlink grants within one or more time periods. In some cases, grants for an amount of data that exceeds a threshold may be qualified in order to be counted at the estimation block. Further, a transient state may be provided where the UE may maintain a higher number of active receive chains until UE feedback is provided.
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Patent Agency Ranking
公开(公告)号：US11082920B2
公开(公告)日：2021-08-03
申请号：US16509198
申请日：2019-07-11
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar Vaze , Arvind Vardarajan Santhanam , Yongle Wu , Raghu Narayan Challa
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of base stations that are part of a synchronization group, where at least two of the base stations in the set of base stations operate on different frequencies. In some cases, the UE may identify the set of base stations based on an indication transmitted by a serving base station for the UE. Additionally, once the synchronization group is identified, the UE may schedule synchronization signals together from the set of base stations. For example, after identifying the set of base stations, the UE may identify a measurement timing window associated with the synchronization group and measure a respective synchronization signal for each base station within the measurement timing window. Accordingly, the UE may then transmit a measurement report to the serving base station that includes the synchronization signal measurements.
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公开(公告)号：US10985964B2
公开(公告)日：2021-04-20
申请号：US16126832
申请日：2018-09-10
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar Vaze , Hung Dinh Ly , Alexei Yurievitch Gorokhov , Nathan Yee , Hari Sankar , Raghu Narayan Challa
Abstract: Techniques are described herein that allow a user equipment (UE) to configure a subcarrier spacing value while monitoring synchronization signals of neighboring cells. In some wireless communication systems, synchronization signals in given radio frequency spectrum band may be transmitted using one of a plurality of different subcarrier spacings. In some cases, a network entity, such as a base station, may transmit an indication to the UE that indicates the subcarrier spacing used by a cell to transmit a specific set of synchronization signals. In some cases, the UE may select a subcarrier spacing based on a database of subcarrier spacings stored locally by the UE. In some cases, the UE may select the subcarrier spacing based on a predetermined configuration.
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公开(公告)号：US11765673B2
公开(公告)日：2023-09-19
申请号：US17405824
申请日：2021-08-18
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar Vaze , Alexei Yurievitch Gorokhov , Yongle Wu , Paolo Minero , Hari Sankar , Ashok Mantravadi , Raghu Narayan Challa , Arvind Vardarajan Santhanam
CPC classification number: H04W56/0035 , H04L5/0048 , H04W56/001 , H04W76/28
Abstract: A device may selectively listen for a tracking reference signal (TRS) during connected mode discontinuous reception (CDRx) based on whether the device is to switch between repeaters of a base station (such as during travel). A device may determine whether the device is in a high speed train (HST) scenario (such as based on a difference in frequency errors generated using a synchronization signal block (SSB) and generated using a TRS, based on a trajectory of a frequency error or a frequency error difference over time, based on instantaneous frequency errors, etc.). When the device is in a HST scenario, the device listens for a TRS during CDRx, and the device generates a frequency error using the TRS. When the device is not in a HST scenario, the device prevents listening for a TRS during CDRx (with a SSB received during CDRx to be used to generate a frequency error).
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公开(公告)号：US20230098652A1
公开(公告)日：2023-03-30
申请号：US17949044
申请日：2022-09-20
Applicant: QUALCOMM Incorporated
Inventor： Arash Ebadi Shahrivar , Peter Pui Lok Ang , Chinmay Shankar Vaze , Brian Clarke Banister , Raghu Narayan Challa , Alexei Yurievitch Gorokhov , Aamod Khandekar , Chun-Hao Hsu , Gautham Hariharan , Ambarish Tripathi , Shailesh MAHESHWARI , Sivaguru NARASAREDDY
IPC: H04B7/08
Abstract: Methods, systems, and devices for wireless communications are described that provide for receive chain selection at a user equipment (UE) with efficient switching between a reduced number of receive chains and an increased number of receive chains for downlink communications based on conditions at the UE. A UE may adaptively adjust the number of active receive chains based on downlink grant activity, channel conditions, network parameters, or any combinations thereof. An estimator block at the UE may determine to adjust the number of receive chains based on a number of downlink grants within one or more time periods. In some cases, grants for an amount of data that exceeds a threshold may be qualified in order to be counted at the estimation block. Further, a transient state may be provided where the UE may maintain a higher number of active receive chains until UE feedback is provided.
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公开(公告)号：US20230033247A1
公开(公告)日：2023-02-02
申请号：US17872302
申请日：2022-07-25
Applicant: QUALCOMM Incorporated
Inventor： Jun Zhu , Chinmay Shankar Vaze , Mihir Vijay Laghate , Raghu Narayan Challa , Alexei Yurievitch Gorokhov , Brian Clarke Banister , Yongle Wu
Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may perform beam measurements for one or more subsets of beams that are selected to provide enhanced beam switch determinations. The UE may identify one or more prioritized beams, and may measure the prioritized beams at a same periodicity as measurements of a serving beam. The UE may, additionally or alternatively, identify a set of all layer one beams (e.g., maximum-level beams or top level beams) for measurement according to a periodic interval, based on a measured mobility being less than a threshold value. The periodic interval may provide that each layer one beam may be measured at a cadence of one beam per measurement occasion, in order to provide measurement diversity.
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