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公开(公告)号：US20220039107A1
公开(公告)日：2022-02-03
申请号：US17309580
申请日：2020-01-09
发明人： Chao WEI , Chenxi HAO , Liangming WU , Qiaoyu LI , Min HUANG
IPC分类号： H04W72/12 , H04B7/0417 , H04B7/0456
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may perform channel state information (CSI) measurements on one or more reference signal transmissions from a base station; determine, based at least in part on the CSI measurements, a set of non-zero linear combination complex coefficients for weighting and co-phasing for a linear combination of a plurality of frequency domain basis vectors and a plurality of spatial domain basis vectors; and transmit a CSI feedback, wherein a first part of the CSI feedback includes at least an indication of a number of the set of non-zero linear combination complex coefficients with regard to all layers of a communication link between the UE and the base station. Numerous other aspects are provided.
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公开(公告)号：US20220029685A1
公开(公告)日：2022-01-27
申请号：US17311773
申请日：2019-12-19
发明人： Qiaoyu LI , Liangming WU , Chenxi HAO , Joseph Binamira SORIAGA , Hao XU
IPC分类号： H04B7/06
摘要： Configurations and feedback schemes for compressed channel state information (CSI) feedback are provided. A User Equipment (UE) determines a constraint on a total number of transfer domain coefficients to be reported for compressed Channel State Information (CSI) feedback by the UE for a plurality of beams identified for the feedback, wherein each transfer domain coefficient is associated with amplitude information and phase information. The UE selects from a transfer domain coefficient compression matrix, based on the constraint, a set of one or more transfer domain coefficients to report for each of the beams. The UE reports information indicating a number of selected transfer domain coefficients in the set of transfer domain coefficients for each beam and a location of each transfer domain coefficient within the transfer domain coefficient compression matrix and reports at least the amplitude and phase information for the selected coefficients.
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公开(公告)号：US20210159953A1
公开(公告)日：2021-05-27
申请号：US16640150
申请日：2018-09-11
发明人： Liangming WU , Yu ZHANG , Chenxi HAO , Chao WEI , Wanshi CHEN , Hao XU
IPC分类号： H04B7/0456 , H04B7/06
摘要： Aspects of the present disclosure relate to techniques for codebook subset restriction (CSR). In some cases, a user equipment (UE) receives, from a network entity, codebook subset restriction (CSR) information. The UE determines, based on the CSR information, a restricted beam set for a plurality of antenna panels, determines precoding matrix indicator (PMI) feedback for the antenna panels subject to restricted beam set, and provides the PMI feedback to the network entity.
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84.发明申请公开(公告)号：US20200244425A1
公开(公告)日：2020-07-30
申请号：US16652614
申请日：2018-09-29
发明人： Liangming WU , Chao WEI , Yu ZHANG , Chenxi HAO
IPC分类号： H04L5/00 , H04B7/0456 , H04L1/00
摘要： Certain aspects of the present disclosure generally relate to methods and apparatus for generating and encoding bits of CSI report. In some cases, a UE may determine a payload size for channel state information (CSI) reporting based, at least in part, on a supported rank, calculate a packet length for the CSI reporting based on the determined payload size, and encode the CSI for a selected CSI resource index (CRI), based on the payload size and the calculated packet length, to generate a coded packet.
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公开(公告)号：US20200084787A1
公开(公告)日：2020-03-12
申请号：US16610989
申请日：2018-08-11
发明人： Chenxi HAO , Yu ZHANG
摘要： Methods, systems, and devices for wireless communication are described that provide for the utilization of multiple partial bands used in the transmission of one or more channel state information (CSI) reference signals (CSI-RSs). The partial bands may be non-consecutive in the frequency domain, time domain, or a combination thereof and each of which may be precoder using a different precoder configuration. The time intervals, cycling granularity, and number of ports may vary between partial bands. Using RSs transmitted via the multiple partial bands, a user equipment (UE) may determine a channel state parameter for each partial band, which may be used for channel feedback.
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86.发明公开公开(公告)号：US20240322870A1
公开(公告)日：2024-09-26
申请号：US18697904
申请日：2021-12-16
发明人： Chenxi HAO , Yu ZHANG , Liangming WU , Yi HUANG , Hao XU , Peter GAAL
IPC分类号： H04B7/0456 , H04W72/0453
CPC分类号： H04B7/0456 , H04W72/0453
摘要： A method of wireless communication performed by a user equipment (UE), the method including: receiving an indication of uplink (UL) precoding information, wherein the UL precoding information includes a set of frequency domain (FD) bases and coefficients applied to one or more antenna ports; determining a size of the FD bases based at least in part on an item selected from a list consisting of: a dedicated indication, a frequency resource allocation of an UL channel, and an UL bandwidth part (BWP); receiving a grant of a physical uplink shared channel (PUSCH), wherein a frequency resource allocation of the PUSCH includes a plurality of FD units; and determining precoding matrices for the plurality of FD units based at least in part on entries of the set of FD bases, wherein the entries correspond to positions of the FD bases in a range of a frequency resource.
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87.发明公开公开(公告)号：US20240259147A1
公开(公告)日：2024-08-01
申请号：US18007419
申请日：2020-09-29
CPC分类号： H04L5/0016 , H04B1/713
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a transport block size based at least in part on a set of physical uplink shared channel resources corresponding to a set of physical uplink shared channel repetitions that are indicated to be transmitted over at least one repetition unit in accordance with a frequency hopping pattern and at least one code block mapping order corresponding to the at least one repetition unit. The UE may transmit the set of physical uplink shared channel repetitions based at least in part on the transport block size. Numerous other aspects are provided.
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公开(公告)号：US20240236897A9
公开(公告)日：2024-07-11
申请号：US18546556
申请日：2021-04-19
发明人： Qiaoyu LI , Jian LI , Chenxi HAO , Yu ZHANG
CPC分类号： H04W56/0045 , H04B7/18502
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an aerial user equipment (UE) may measure a first offset associated with a downlink frame based at least in part on a time when a downlink signal is received from a terrestrial base station. The aerial UE may determine a second offset corresponding to a starting time for the downlink frame at the terrestrial base station. The aerial UE may transmit an uplink message in an uplink frame using a timing advance that is based at least in part on a value of the first offset and a value of the second offset relative to a starting time associated with a global navigation satellite system frame duration. Numerous other aspects are described.
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89.发明公开公开(公告)号：US20240154674A1
公开(公告)日：2024-05-09
申请号：US18549413
申请日：2022-04-07
发明人： Kangqi LIU , Chenxi HAO , Yu ZHANG , Fang YUAN , Liangming WU , Chao WEI , Min HUANG , Qiaoyu LI , Hao XU
IPC分类号： H04B7/06 , H04L5/00 , H04W72/1268 , H04W76/20
CPC分类号： H04B7/0626 , H04L5/0051 , H04W72/1268 , H04W76/20
摘要： Certain aspects of the present disclosure provide techniques for allocating channel state information (CSI) processing unit (CPU) for user equipment (UE) initiated CSI. For example, the UE may receive an indication from a network entity (e.g., a base station or gNB) configuring the UE with a number of one or more CPUs allowed to be occupied for UE-initiated CSI feedback. The UE uses the at least one of the CPUs to calculate UE-initiated CSI feedback. The UE transmits at least one report including the UE-initiated CSI feedback if one or more conditions are met, such as when a mismatch between a CSI metric for a scheduled physical downlink shared channel (PDSCH) and a CSI metric calculated as part of the UE-initiated CSI feedback is equal to or exceeding a threshold value.
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90.发明公开公开(公告)号：US20240048209A1
公开(公告)日：2024-02-08
申请号：US18257270
申请日：2022-03-04
发明人： Min HUANG , Yu ZHANG , Chao WEI , Wei XI , Rui HU , Kangqi LIU , Chenxi HAO , Liangming WU , Jing DAI , Hao XU , Wanshi CHEN , Danlu ZHANG
CPC分类号： H04B7/0639 , H01Q1/24 , H01Q21/061 , H01Q21/20 , H01Q25/04 , H04B7/063 , H04B7/066 , H04B7/0691 , H04B7/0874
摘要： Methods, systems, and devices for wireless communications are described. A receiving device may receive, from a transmitting device, a configuration indicating a set of orbital angular momentum (OAM) modes for joint reporting, where at least one of the set of OAM modes is associated with transmission via two or more of a plurality of sets of antennas arranged in a set of concentric circular arrays. The receiving device may transmit, to the transmitting device, a report indicating precoding information for each of at least a subset of the set of OAM modes, where the precoding information includes one or more first parameters common to the set of OAM modes and one or more second parameters for respective ones of the at least the subset of the set of OAM modes.
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