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公开(公告)号：US11246155B2
公开(公告)日：2022-02-08
申请号：US16281828
申请日：2019-02-21
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Zhifei Fan , Kapil Bhattad , Jing Sun , Tamer Kadous , Srinivas Yerramalli
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate in an unlicensed spectrum (e.g., a shared radio frequency spectrum band). As such, the UE may determine a codebook size for transmitting hybrid access request (HARQ) acknowledgement (ACK) feedback with respect to the unlicensed spectrum. Accordingly, the UE may base the HARQ ACK codebook size on a number of HARQ processes with which the UE has been configured. Additionally or alternatively, the UE may base the HARQ ACK codebook size on a number and/or duration of downlink channel monitoring occasions indicated by the base station. In some cases, the UE may base the HARQ ACK codebook size on a combination of the techniques described herein.
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252.发明授权公开(公告)号：US11245503B2
公开(公告)日：2022-02-08
申请号：US16773546
申请日：2020-01-27
Applicant: QUALCOMM INCORPORATED
Inventor： Arul Durai Murugan Palanivelu , Kapil Bhattad , Manikandan Chandrasekar , Alberto Rico Alvarino
Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.
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公开(公告)号：US11229013B2
公开(公告)日：2022-01-18
申请号：US16515765
申请日：2019-07-18
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Xiaoxia Zhang , Kapil Bhattad
Abstract: Design of control resource sets (CORESETs) is disclosed for new radio (NR) unlicensed (NR-U) operations with subband access. A default CORESET may be defined for multiple or all subbands within the allocated NR system bandwidth where each subband is covered by a sub-CORESET. When a decoding candidate of the set of decoding candidates spans the boundary of multiple sub-CORESETs, a base station may either remove the overlapping decoding candidate from the set of decoding candidates, shift the decoding candidate into the next location fully within a sub-CORESET, or continue transmission of the decoding candidate while puncturing the portion on the inaccessible subband. In the puncturing option, a user equipment (UE) would perform additional blind decoding in each subband according to the associated sub-CORESET. In additional aspects, after beginning of a transmission opportunity, the UE uses the knowledge of accessible subbands for fast CORESET switching via broadcast or UE-specific signaling.
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公开(公告)号：US11219061B2
公开(公告)日：2022-01-04
申请号：US16508610
申请日：2019-07-11
Applicant: QUALCOMM Incorporated
Inventor： Kaushik Chakraborty , Xiaoxia Zhang , Jing Sun , Kapil Bhattad , Tao Luo
Abstract: Wireless communications systems and methods related to communicating random access messages are provided. A method includes communicating, by a first wireless communication device with a second wireless communication device, mode information for determining whether to perform a listen-before-talk (LBT) mode for a random access procedure. The method also includes communicating, by the first wireless communication device with the second wireless communication device, a random access message based on the mode information.
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公开(公告)号：US11201658B2
公开(公告)日：2021-12-14
申请号：US16777752
申请日：2020-01-30
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Tanumay Datta , Ananta Narayanan Thyagarajan , Pravjyot Singh Deogun , Xiaoxia Zhang , Jing Sun
Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. In some aspects, a user equipment (UE) may enable adaptive receive diversity (RxD) by receiving an indicator for a channel occupancy time (COT), outside of the COT and in a non-RxD mode, and may transfer to the RxD mode for reception during the COT. After an end to the COT, the UE may return to the non-RxD mode. In this way, the UE enables improved power gain, diversity gain, or spatial nulling gain during a COT, and enables reduced power utilization outside of the COT.
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Patent Agency Ranking
256.发明申请公开(公告)号：US20210376983A1
公开(公告)日：2021-12-02
申请号：US17405006
申请日：2021-08-17
Applicant: QUALCOMM INCORPORATED
Inventor： Arul Durai Murugan Palanivelu , Kapil Bhattad , Manikandan Chandrasekar , Alberto Rico Alvarino
Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.
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公开(公告)号：US20210351872A1
公开(公告)日：2021-11-11
申请号：US17381510
申请日：2021-07-21
Applicant: QUALCOMM Incorporated
Inventor： Mostafa Khoshnevisan , Jing Sun , Kapil Bhattad , Xiaoxia Zhang
Abstract: Methods, systems, and devices for wireless communications are described that support group-based acknowledgment feedback techniques. Two or more different groups of downlink transmissions may each have an associated group-based acknowledgment feedback, and a base station may transmit downlink control information to a UE that indicates one or more parameters that are used to determine which downlink transmissions are to be reported in the group-based feedback. Based on the parameters in the downlink control information, the UE may determine the feedback to be reported, and a timing for when to transmit the feedback to the base station.
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公开(公告)号：US20210289425A1
公开(公告)日：2021-09-16
申请号：US17331386
申请日：2021-05-26
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Xiaoxia Zhang , Kapil Bhattad
Abstract: A user equipment (UE) may receiving, from a base station, a synchronization signal block (SSB) of a set of quasi-collocated (QCL) SSBs, the SSB comprising an indication of a parameter indicating information associated with a plurality of downlink control channel locations corresponding to the set of QCL SSBs. The UE may determine, based at least in part on the parameter, the plurality of downlink control channel locations corresponding to the set of QCL SSBs. The UE may receive a downlink grant for a system information based at least in part on monitoring one or more downlink control channel locations of the plurality of downlink control channel locations. The UE may receive the system information based at least in part on the downlink grant. The UE may establish a connection with the base station based at least in part on the SSB and the received system information.
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259.发明授权公开(公告)号：US11116001B2
公开(公告)日：2021-09-07
申请号：US16603736
申请日：2018-05-09
Applicant: QUALCOMM Incorporated , Chao Wei , Kapil Bhattad , Alberto Rico Alvarino
Inventor： Chao Wei , Kapil Bhattad , Alberto Rico Alvarino , Hao Xu
Abstract: A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a grant identifying an uplink resource allocation of less than one physical resource block (PRB), wherein the grant identifies a particular PRB in which the uplink resource allocation is included and at least a group of subcarriers allocated for the apparatus; and transmit uplink data using the uplink resource allocation. Numerous other aspects are described.
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公开(公告)号：US11101971B2
公开(公告)日：2021-08-24
申请号：US16563712
申请日：2019-09-06
Applicant: QUALCOMM Incorporated
Inventor： Kapil Bhattad , Xiao Feng Wang , Alberto Rico Alvarino , Hao Xu
IPC: H04L5/14 , H04L1/00 , H04L27/26 , H04L5/00 , H04L5/22 , H04L5/26 , H04W72/04 , H04W74/08 , H04L1/08 , H04L25/02
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure for narrowband communications. The apparatus may also determine a PUSCH format of a group of PUSCH formats for allocating at least one RU to a UE for a NPUCCH. In addition, the apparatus may allocate the at least one RU to the UE using the determined PUSCH format. In one aspect, the RU may include one or more subcarriers in each of one or more slots.
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