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公开(公告)号：US20220304014A1
公开(公告)日：2022-09-22
申请号：US17596065
申请日：2019-06-28
发明人： Qiaoyu LI , Chao WEI , Chenxi HAO , Liangming WU , Yu ZHANG , Yuwei REN , Changlong XU , Min HUANG , Hao XU , Wanshi CHEN
摘要： Aspects are provided which allow a user equipment (UE) to identify a low-bandwidth (low-BW) CORESET-0 and associated CSS based on reception bandwidth of the UE. The base station may configure different frequency and time-domain resources of the low-BW CORESET in order to optimize resource utilization of the low-BW CORESET-0, and the low-tier UE may identify these resources of CORESET-0 and CSS from the system configuration information received in a master information block (MIB). As a result, low tier UEs may operate in a same cell as legacy UEs without the need for the base station to transmit additional signaling to either legacy UEs or lower tier UEs for the UEs to receive their respective CORESET-0's and identify a physical downlink channel (PDCCH).
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公开(公告)号：US20220190957A1
公开(公告)日：2022-06-16
申请号：US17593902
申请日：2019-04-15
发明人： Liangming WU , Changlong XU , Jian LI , Jing JIANG , Wei YANG , Ying WANG
IPC分类号： H04L1/00
摘要： Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for adjusting a number of encoded bits, M, in block puncturing and/or shortening calculations to improve encoding performance. An exemplary method that may be performed by a wireless device generally includes iteratively determining a parameter, Madj, for construction of a polar code of size N for use in encoding K information bits, based on: at least two parameters, α and β, related to how many iterations to use in determining Madj, and a number of encoded bits, M; performing information adjustment allocation of the K information bits to an upper part and a lower part of the polar code based on Madj; and transmitting the upper part and the lower part of the polar code via a wireless medium.
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公开(公告)号：US20220174680A1
公开(公告)日：2022-06-02
申请号：US17593823
申请日：2020-04-21
发明人： Chenxi HAO , Yu ZHANG , Chao WEI , Qiaoyu LI , Liangming WU
摘要： Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. A method that can be performed by a user equipment (UE) includes determining the size of the intermediate set based on one or more parameters included in the CSI report configuration, determining one or more FD bases for each layer based on the intermediate set, wherein the one or more FD bases are characterized by an M value indicative of a number of the one or more FD bases and based on the CSI report configuration, and reporting the one or more FD bases for each layer based on the size of the intermediate set.
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公开(公告)号：US20210368496A1
公开(公告)日：2021-11-25
申请号：US17275573
申请日：2019-09-19
发明人： Qiaoyu LI , Yu ZHANG , Chenxi HAO , Liangming WU , Hao XU , Wanshi CHEN
摘要： 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：US20210218523A1
公开(公告)日：2021-07-15
申请号：US17056209
申请日：2019-06-20
发明人： Chenxi HAO , Yu ZHANG , Liangming WU , Hao XU , Wanshi CHEN , Peter GAAL , Tao LUO
IPC分类号： H04L5/00
摘要： Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive, from a base station, a configuration associated with a layer to reference signal port mapping. In some cases, the UE may identify, based at least in part on the configuration, that at least one layer of a set of layers for receiving a downlink transmission from the base station is adapted based on at least one interference layer. In some cases, the adapted layer may be mapped to one or more reference signal ports. The UE may receive the downlink transmission and may decode the downlink transmission based on identifying that the at least one layer is adapted and the layer to reference signal port mapping.
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公开(公告)号：US20210211249A1
公开(公告)日：2021-07-08
申请号：US15733764
申请日：2019-04-17
发明人： Chenxi HAO , Yu ZHANG , Chao WEI , Liangming WU , Qiaoyu LI , Hao XU
IPC分类号： H04L5/00
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may allocate data associated with a user equipment (UE), of two or more UEs, into at least one of a first part, a second part, or a combination thereof; multiplex the first part of the data associated with the UE with a first part of data associated with one or more other UEs, of the two or more UEs, to form multiplexed data; map the multiplexed data to a first set of layers; and map the second part of the data associated with the UE and a second part of the data associated with the one or more other UEs to a second set of layers. Numerous other aspects are provided.
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公开(公告)号：US20230131045A1
公开(公告)日：2023-04-27
申请号：US17759868
申请日：2020-02-14
发明人： Min HUANG , Chenxi HAO , Liangming WU
IPC分类号： H04B7/06 , H04B7/0456
摘要： Wireless communications systems and methods related to CSI feedback are provided. A user equipment (UE) receives an indication of a restricted set of frequency domain (FD) beamforming components and one or more channel state information reference signals (CSI-RSs). The UE may transmit channel state information (CSI) report indicating a plurality of precoding coefficients based on the received one or more CSI-RSs and the restricted set of FD beamforming components.
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公开(公告)号：US20220263552A1
公开(公告)日：2022-08-18
申请号：US17596541
申请日：2020-06-19
发明人： Chenxi HAO , Yu ZHANG , Chao WEI , Wanshi CHEN , Liangming WU
IPC分类号： H04B7/06
摘要： Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. More particularly, aspects of the present disclosure provide for codebook subset restriction (CBSR) on per spatial domain (SD) basis amplitude.
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公开(公告)号：US20220247467A1
公开(公告)日：2022-08-04
申请号：US17595106
申请日：2020-05-18
发明人： Min HUANG , Chao WEI , Yu ZHANG , Qiaoyu LI , Liangming WU
摘要： Certain aspects of the present disclosure provide techniques for a user equipment (UE) to determine channel state information (CSI) to feedback to a base station (BS) in a full-duplex wireless communications system while considering UE-to-UE interference and for the BS to configure the UE to provide the CSI to the BS. In an exemplary method, a UE receives, from a base station (BS) in a full-duplex communications system, a channel state information (CSI) report configuration including at least a first indicator of a first associated set of sounding reference signal (SRS) resources; and transmits to the BS a CSI report including CSI and zero or more second indicators of sets of measured SRS resources.
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公开(公告)号：US20220109481A1
公开(公告)日：2022-04-07
申请号：US17429488
申请日：2020-02-15
发明人： Bo CHEN , Yuwei REN , Liangming WU , Yu ZHANG , Ruifeng MA , Chenxi HAO , Renqiu WANG , Hao XU
IPC分类号： H04B7/06 , H04B7/0456 , H04L25/02
摘要： Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform channel state information (CSI) measurements on one or more reference signal transmissions received from a base station. Based on the CSI measurements, the UE may generate a CSI report, and the UE may transmit the CSI report to the base station. In some cases, the generated CSI report may include a first portion and a second portion. The first portion may indicate whether the second portion of the CSI report includes full-band CSI feedback or partial-band CSI feedback. The second portion may provide the CSI feedback for one or more identified sub-bands. In some cases, the second portion may include a sub-band index indicating the identified sub-bands. Additionally or alternatively, the second portion may include a bitmap indicating a correspondence between multiple CSI feedback values and multiple corresponding sub-band indexes.
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