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公开(公告)号：US20220183001A9
公开(公告)日：2022-06-09
申请号：US17275573
申请日：2019-09-19
Applicant: QUALCOMM Incorporated
Inventor： Qiaoyu LI , Yu ZHANG , Chenxi HAO , Liangming WU , Hao XU , Wanshi CHEN
Abstract: Certain aspects of the present disclosure provide techniques for scheduling hybrid automatic repeat request (HARQ) feedback and controlling the transmit power of the HARQ feedback. An example method generally includes generating a configuration for physical uplink control channel (PUCCH) resource sets assigned to at least one user equipment (UE), wherein each of the PUCCH resources sets comprises PUCCH resources, transmitting the configuration for the PUCCH resource sets to the at least one UE, generating an uplink control reporting indication indicating the PUCCH resources associated with downlink demodulation reference signal (DMRS) port groups, transmitting the uplink control reporting indication, to the at least one UE, for use in reporting uplink control information (UCI), and receiving at least a part of the UCI associated with at least one of the downlink DMRS port groups from the at least one UE via the PUCCH resources indicated in the uplink control reporting indication.
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公开(公告)号：US20220123800A1
公开(公告)日：2022-04-21
申请号：US17429657
申请日：2020-02-06
Applicant: Qualcomm Incorporated
Inventor： Qiaoyu LI , Chao WEI , YU ZHANG , Liangming WU , Chenxi HAO , Min HUANG , Hao XU , Wanshi CHEN , Juan MONTOJO
IPC: H04B7/0456 , H04B7/0404 , H04B7/0408 , H04L5/00 , H04W72/04
Abstract: Methods, systems, devices, and apparatuses for wireless communications that support transmission diversity enhancement for uplink control channel are described. Generally, the described techniques provide for enhanced performance of an uplink control channel such as a physical uplink control channel (PUCCH) through the use of transmission diversity. In some cases, multiple input multiple output (MIMO) techniques may be supported for transmission of an uplink control channel for a given format suitable for transmission diversity enhancement. A resource block (RB) used in an uplink control channel transmission may contain a number of resource elements (REs) across one or more resource blocks. According to some aspects, a transmit diversity scheme may be employed at the RE level through application of different spatial precoders for different groups of REs of a given RB.
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公开(公告)号：US20220103330A1
公开(公告)日：2022-03-31
申请号：US17275597
申请日：2018-09-21
Applicant: Qiaoyu LI , Yu ZHANG , Chenxi HAO , Liangming WU , Hao XU , Wanshi CHEN , QUALCOMM Incorporated
Inventor： Qiaoyu LI , Yu ZHANG , Chenxi HAO , Liangming WU , Hao XU , Wanshi CHEN
Abstract: Certain aspects of the present disclosure provide techniques for multiplexing uplink control information (UCI) on physical uplink control channel (PUCCH) resources for non-ideal backhaul based multi-transmission/reception point non-coherent joint transmissions. An example method generally includes determining that a first set of physical uplink control channel (PUCCH) resources configured for reporting channel state information (CSI) overlaps with a second set of PUCCH resources indicated for reporting hybrid automatic repeat request (HARQ) feedback, wherein the first and second sets of PUCCH resources are associated with downlink demodulation reference signal (DMRS) port groups, generating CSI reports and HARQ feedback associated with at least one of the downlink DMRS port groups, and transmitting the CSI reports and the HARQ feedback, multiplexed using the second set of PUCCH resources
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公开(公告)号：US20220038159A1
公开(公告)日：2022-02-03
申请号：US17298913
申请日：2019-12-11
Applicant: QUALCOMM Incorporated
Inventor： Chenxi HAO , Liangming WU , Qiaoyu LI , Min HUANG , Joseph Binamira SORIAGA , Wanshi CHEN
Abstract: Certain aspects of the present disclosure provide techniques for a basis report for compressed channel state information (CSI) feedback with a non-contiguous subband configuration. A method for wireless communication by a user equipment (UE) includes receiving a CSI report configuration configuring the UE for reporting precoding matrix information including, a plurality of selected beams, a frequency domain compression matrix for each of the beams at each of a plurality of taps in the time domain, and a subset of a plurality of linear combination coefficients associated with the frequency domain compression matrices and beams. The UE receives a configuration of non-contiguous frequency resources for CSI reporting. The UE may perform frequency domain compression of the precoding matrix information using a truncated frequency domain compression matrix or performing separate frequency domain compression of the precoding matrix information for each set of contiguous frequency resources.
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公开(公告)号：US20220029686A1
公开(公告)日：2022-01-27
申请号：US17299250
申请日：2019-12-12
Applicant: QUALCOMM Incorporated
Inventor： Chenxi HAO , Liangming WU , Qiaoyu LI , Joseph Binamira SORIAGA , Peter GAAL , Wanshi CHEN
IPC: H04B7/06
Abstract: Certain aspects of the present disclosure provide techniques for a coefficients report for compressed channel state information (CSI) feedback. A method for wireless communication by a user equipment (UE) includes receiving a CSI report configuration configuring the UE for reporting precoding matrix information including, a plurality of selected beams L, a frequency domain compression matrix F for each of the L beams at each of a plurality of taps M in the time domain, and a subset of a plurality of linear combination coefficients associated with the frequency domain compression matrices and beams. The UE determines the coefficients based on a first evaluation that is, for each beam, an evaluation of the amplitude of the coefficients across the taps, and a second evaluation and a evaluation that is, for each tap, an evaluation of the amplitude of the linear combination coefficients across the beams. The UE reports the first and second evaluations.
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Patent Agency Ranking
公开(公告)号：US20210328742A1
公开(公告)日：2021-10-21
申请号：US17274407
申请日：2019-08-23
Applicant: QUALCOMM INCORPORATED
Inventor： Chenxi HAO , Yu ZHANG , Liangming WU , Qiaoyu LI , Wanshi CHEN , Peter GAAL
Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) for multiple transmission reception point (multi-TRP) transmission such as non-coherent joint transmission (NCJT), including determining subband sizes for CSI and rules for Part II CSI omission. A method that can be performed by a user equipment (UE) includes receiving a CSI report configuration. The CSI report configuration associated with one or more CSI reference signal (RS) resources, each CSI resource including a set of ports or port groups. The UE selects one or more CSI-RS resources for which to report CSI and determines a subband size for sending a CSI report based, at least in part, on payload of the CSI report. In an example method, the UE can determine whether the UE has sufficient resources for the CSI report and omit at least a portion of the CSI based on the determination.
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公开(公告)号：US20210321419A1
公开(公告)日：2021-10-14
申请号：US17284728
申请日：2018-11-01
Applicant: QUALCOMM Incorporated
Inventor： Qiaoyu LI , Yu ZHANG , Yi HUANG , Chenxi HAO , Liangming WU , Hao XU
Abstract: A method in accordance with aspects of the disclosure comprises receiving a plurality of downlink control information (DCI) signals, wherein each DCI signal is associated with a Demodulation Reference Signal (DMRS) Port Group (DMRS-PG) of a plurality of DMRS-PGs, and each DCI signal within the plurality of DCI signals contains a DMRS-PG Identifier (DMRS-PGID) identifying the associated DMRS-PG, performing one or more measurements associated with the each DCI signal, and generating a multi-port-group uplink control information (UCI) signal based on the one or more measurements associated with the each DCI, wherein the multi-port-group UCI signal contains an indication of whether the each DCI is successfully received. The indication can be explicitly contained in the UCI, or implicitly realized using scrambling sequences associated with DMRS-PGs to scramble the UCI.
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公开(公告)号：US20210306109A1
公开(公告)日：2021-09-30
申请号：US17268289
申请日：2019-08-13
Applicant: Qiaoyu LI , Yu ZHANG , Chao WEI , Chenxi HAO , Liangming WU , Hao XU , QUALCOMM Incorporated
Inventor： Qiaoyu LI , Yu ZHANG , Chao WEI , Chenxi HAO , Liangming WU , Hao XU
Abstract: Certain aspects of the present disclosure provide techniques for layer mapping for multiple transmission reception point (TRP) transmission, for example, for code block group (CBG) based hybrid automatic repeat request (HARQ) acknowledgement feedback in new radio (NR). Aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The UE receives one or more transport blocks (TBs) from a plurality of TRPs. Each of the one or more TBs comprises a plurality of CBs. For one or more of the plurality of CBs, all bits of the CB are received from a same TRP. The UE decodes the one or more TBs.
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公开(公告)号：US20210297302A1
公开(公告)日：2021-09-23
申请号：US17264261
申请日：2018-08-07
Applicant: Chenxi HAO , Yu ZHANG , Liangming WU , Hao XU , Wanshi CHEN , Peter GAAL , QUALCOMM Incorporated
Inventor： Chenxi HAO , Yu ZHANG , Liangming WU , Hao XU , Wanshi CHEN , Peter GAAL
IPC: H04L27/34 , H04B17/336 , H04B17/373 , H04L5/00
Abstract: Certain aspects of the present disclosure provide techniques for adaptive modulo base selection for non-linear precoding. Aspects provide a method for wireless communications that can be performed by a base station (BS). The BS adaptively selects a modulo base for a data stream for at least one user equipment (UE) in a transmission to one or more UEs. The BS selects the modulo base based on one or more parameters. The BS transmits a signal for at least one UE of the one or more UEs to identify the selected modulo base. The BS performs the transmission to the one or more UEs. The UE receives the transmission from the BS and the signal for the identification of the selected modulo base. Based on the signal, the UE determines the modulo base for at least one data stream in the transmission and decodes the data stream using the modulo base.
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公开(公告)号：US20210234587A1
公开(公告)日：2021-07-29
申请号：US16972425
申请日：2019-06-13
Applicant: QUALCOMM Incorporated
Inventor： Liangming WU , Yu ZHANG , Chenxi HAO , Qiaoyu LI , Hao XU
Abstract: Certain aspects of the present disclosure provide techniques for reporting explicit channel state information (CSI) with spatial and time domain compression.
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