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公开(公告)号:US11659523B2
公开(公告)日:2023-05-23
申请号:US16987064
申请日:2020-08-06
Applicant: QUALCOMM INCORPORATED
Inventor: Pravjyot Singh Deogun , Kapil Bhattad , Jing Sun , Mostafa Khoshnevisan , Xiaoxia Zhang , Ahmed Zaki , Gowrisankar Somichetty
IPC: H04W72/04 , H04W72/14 , H04L1/18 , H04L1/1812
CPC classification number: H04W72/04 , H04L1/1812 , H04W72/14
Abstract: Wireless communications systems and methods related to bandwidth part (BWP) switching after data communication are provided. A user equipment (UE) receives, from a base station (BS) in a first bandwidth part (BWP), one or more data bursts and BWP switching information. The UE switches from the first BWP to a second BWP based on the BWP switching information after receiving the one or more data bursts. The UE communicates, with the BS, a communication in the second BWP after the switching.
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公开(公告)号:US11330555B2
公开(公告)日:2022-05-10
申请号:US16907095
申请日:2020-06-19
Applicant: QUALCOMM Incorporated
Inventor: Kapil Bhattad , Pravjyot Singh Deogun , Rajeev Kumar , Ozcan Ozturk , Xiaoxia Zhang , Jing Sun
Abstract: This disclosure provides systems, methods and apparatus, and computer programs encoded on computer storage media, for managing paging monitoring by a wireless device. In one aspect, the wireless device may receive a serving cell signal from a cell. The wireless device may determine a delay time based on the serving cell signal. The wireless device may monitor for the paging signal during the determined delay time. The wireless device may stop the monitoring for the paging signal upon or after expiration of the determined delay time. In some aspects, the wireless device may receive an indication of multiple paging signal monitoring occasions from the cell, which may include an indication of a number of synchronization signal blocks (SSBs) to be transmitted from the cell and a number of physical downlink control channel (PDCCH) monitoring occasions per SSB in a paging occasion.
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公开(公告)号:US20210007128A1
公开(公告)日:2021-01-07
申请号:US16915686
申请日:2020-06-29
Applicant: QUALCOMM Incorporated
Inventor: Kapil Bhattad , Tanumay Datta , Pravjyot Singh Deogun , Xiaoxia Zhang , Jing Sun
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a set of one or more uplink grants scheduling at least a first uplink transmission and a second uplink transmission during a channel occupancy time of an unlicensed radio frequency spectrum band. The UE may identify a transmission gap between the first uplink transmission and the second uplink transmission of the plurality of uplink transmissions by the UE during the channel occupancy time, the transmission gap exceeding a threshold time. The UE may determine that the transmission gap corresponds to a lost uplink grant. The UE may modify the first uplink transmission or the second uplink transmission based at least in part on the determination that the transmission gap corresponds to the lost uplink grant.
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公开(公告)号:US20200267763A1
公开(公告)日:2020-08-20
申请号:US16790623
申请日:2020-02-13
Applicant: QUALCOMM Incorporated
Inventor: Pravjyot Singh Deogun , Xiaoxia Zhang , Ozcan Ozturk , Jing Sun , Kapil Bhattad , Ananta Narayanan Thyagarajan
Abstract: Random access channel access and validity procedures are disclosed. In one aspect, the medium access control (MAC) indications multiple random access occasions (ROs) to user equipments (UEs) for random access transmissions. In such aspect, random access failure would only be declared if listen before talk (LBT) procedures for the random access transmission fail on all of the ROs indicated by the MAC layer. Similarly, in additional aspects, a UE will not apply a backoff value for any LBT failures for random access attempts that occur within an LBT time window. In further aspects, a UE may determine the validity of ROs that overlap with a discovery reference signal measurement timing configuration (DMTC) window. In such aspects, the UE may not use overlapping ROs or may determine a portion of the DMTC window that is not used for base station transmissions and declare the overlapping ROs with the unused portion valid.
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公开(公告)号:US11968049B2
公开(公告)日:2024-04-23
申请号:US17027213
申请日:2020-09-21
Applicant: QUALCOMM Incorporated
Inventor: Kapil Bhattad , Jing Sun , Pravjyot Singh Deogun
IPC: H04L1/1812 , H04W72/044 , H04W72/1273 , H04W72/23 , H04W76/11 , H04W76/27
CPC classification number: H04L1/1819 , H04W72/0466 , H04W72/1273 , H04W72/23 , H04W76/11 , H04W76/27
Abstract: Enhancements to downlink feedback information (DFI) signaling is disclosed. According to the disclosed aspects, indications of DFI presence in downlink control information (DCI) messaging are provided that limit any increase to DCI overhead for uplink grants. In a first aspect, DFI presence may be signaled using unused or disallowed DCI variable states for indication of DFI presence. In another aspect, a separate bit may be added to a DCI message for indicating DFI presence. Additional aspects include repurposing DCI fields which are specific to cell radio network temporary identifier (C-RNTI)-based uplink grants, or may defining a new RNTI (e.g., DFI-RNTI) for indicating DFI presence. Further aspects may provide for radio resource control (RRC) signaling that configures which DCI variable state can be used to indicate DFI presence.
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公开(公告)号:US11863331B2
公开(公告)日:2024-01-02
申请号:US16948843
申请日:2020-10-01
Applicant: QUALCOMM INCORPORATED
Inventor: Kapil Bhattad , Jing Sun , Pravjyot Singh Deogun , Xiaoxia Zhang
IPC: H04L5/00 , H04L1/1867 , H04L1/1812 , H04W72/566 , H04L1/1829 , H04W72/23
CPC classification number: H04L1/1887 , H04L1/189 , H04L1/1812 , H04L1/1819 , H04L1/1864 , H04L5/0055 , H04W72/23 , H04W72/569
Abstract: Wireless communications systems and methods related to unscheduled uplink hybrid automatic repeat request (HARQ) data transmissions in a shared radio frequency band are provided. A user equipment (UE) determine priorities for a plurality of transport blocks (TBs) associated with a plurality of hybrid automatic repeat request (HARQ) processes for transmission during configured transmission periods. The UE transmits, to a base station (BS), the plurality of TBs in a shared radio frequency band during the configured transmission periods based on the determined priorities.
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公开(公告)号:US11672008B2
公开(公告)日:2023-06-06
申请号:US16814634
申请日:2020-03-10
Applicant: QUALCOMM Incorporated
Inventor: Kapil Bhattad , Jing Sun , Xiaoxia Zhang , Pravjyot Singh Deogun
CPC classification number: H04W74/0808 , H04W72/12
Abstract: This disclosure provides systems, methods, and apparatuses for channel occupancy time (COT) sharing arrangements when two or more COTs are associated with different durations, and provides arrangements for base station scheduling of downlink transmissions and selection of a listen-before-talk (LBT) configuration when two or more COTs are associated with different user equipment (UE) transmission endpoints. Furthermore, this disclosure provides systems, methods, and apparatuses for UE-side communication in accordance with scheduling information determined based on such COT sharing arrangements. By providing COT sharing arrangements when two or more COTs are associated with different durations, unlicensed channel utilization may be improved and throughput may be increased relative to when only one UE's COT can be used by the base station. By providing arrangements for scheduling downlink transmissions and selecting an LBT configuration, unlicensed channel utilization may be improved and access to the unlicensed medium may be streamlined.
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公开(公告)号:US11653388B2
公开(公告)日:2023-05-16
申请号:US16742558
申请日:2020-01-14
Applicant: QUALCOMM Incorporated
Inventor: Pravjyot Singh Deogun , Jing Sun , Xiaoxia Zhang , Ozcan Ozturk , Kapil Bhattad , Ananta Narayanan Thyagarajan
IPC: H04W74/08 , H04B17/318 , H04W72/0453
CPC classification number: H04W74/0833 , H04B17/318 , H04W72/0453
Abstract: Frequency division multiplex (FDM) random access configuration and selection is disclosed for new radio (NR) unlicensed (NR-U) operations. For idle mode user equipment (UEs), the network may configured multiple frequency bands for random access. The UE may then select different frequencies for random access when default frequencies experience interference. For connected mode UEs, the network may configured which of multiple configured frequency bands the connected UE may use for autonomous random access transmissions. The UE may then select any of the allowed frequency bands for autonomous random access. Contention-free random access resources may be configured on one or more of the multiple configured frequency bands. When contention-free resources are available, the UEs may initially attempt access of the contention-free resources on the default frequency band before attempting random access on other configured bands or the UE is provided a priority of bands for access by the network.
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公开(公告)号:US20220377795A1
公开(公告)日:2022-11-24
申请号:US17755185
申请日:2020-11-05
Applicant: QUALCOMM Incorporated
Inventor: Kapil Bhattad , Xiaoxia Zhang , Pravjyot Singh Deogun , Jing Sun
Abstract: Configured grant (CG) channel occupancy time (COT) sharing procedure is disclosed. A user equipment (UE) sharing a COT may indicate in the uplink control indicator (UCI) the remaining COT duration, an offset indication identifying where the uplink transmission is expected to end, and a channel access priority class (CAPC) which may be used by the base station to determine which type of data may be included in downlink transmissions in the shared COT. Where the energy detection (ED) threshold has not been configured for COT sharing, the UE may reduce the information included in the UCI. The base station may alternatively configured which information for the UE to include in the UCI for potential COT sharing. The COT sharing information may further be compressed by coding such information into tables or leveraging knowledge of transmission characteristics, such as configured end points.
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20.
公开(公告)号:US11510227B2
公开(公告)日:2022-11-22
申请号:US16588658
申请日:2019-09-30
Applicant: QUALCOMM Incorporated
Inventor: Xiaoxia Zhang , Jing Sun , Kapil Bhattad , Tao Luo , Pravjyot Singh Deogun , Ananta Narayanan Thyagarajan
Abstract: Wireless communications systems and methods related to transmission of discovery signals are provided. A wireless communication device communicates an indication of an uplink (UL) resource that falls within a discovery reference signal (DRS) measurement timing configuration (DMTC) window. The wireless communication device communicates an UL transmission within the UL resource during the DMTC window.
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