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

IPC: H04L5/00 ,  H04B7/06

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.

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

IPC: H04W72/08 ,  H04W72/04 ,  H04L5/00 ,  H04W76/11 ,  H04L1/16 ,  H04L1/18 ,  H04W72/12

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.

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

IPC: H04L1/18 ,  H04W72/04

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.

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.

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

IPC: H04B7/06 ,  H04L25/02

Abstract: Certain aspects of the present disclosure provide techniques for reporting explicit channel state information (CSI) with spatial and time domain compression.

公开(公告)号：US20210194741A1

公开(公告)日：2021-06-24

申请号：US16756184

申请日：2017-11-10

Applicant: Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  Wanshi CHEN ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  Wanshi CHEN

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for generating and using channel state information reference signals (CSI-RS). In some aspects, a method for generating a Channel State Information-Reference Signal may include: generating a pseudo-random base sequence based on at least a time parameter of the CSI-RS; modifying the pseudo-random base sequence based on at least a frequency parameter of the CSI-RS to form a modified pseudo-random sequence; generating the CSI-RS based on the modified pseudo-random sequence; and transmitting the CSI-RS to a user equipment.

公开(公告)号：US20210126739A1

公开(公告)日：2021-04-29

申请号：US17048837

申请日：2019-04-17

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Qiaoyu LI ,  Hao XU

IPC: H04L1/00 ,  H04B7/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive or determine information identifying a mapping of one or more codewords with regard to one or more layers, wherein the one or more layers include at least one of: a first set of layers, wherein a fraction of bits associated with each layer, of the first set of layers, is for data associated with the UE, or a second set of layers, wherein all bits associated with each layer, of the second set of layers, are for data associated with the UE; and perform rate matching or decoding based at least in part on the information identifying the mapping. Numerous other aspects are provided.

公开(公告)号：US20210075488A1

公开(公告)日：2021-03-11

申请号：US17054234

申请日：2019-05-09

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG ,  Chenxi HAO ,  Wanshi CHEN ,  Hao XU

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide techniques for aperiodic channel state information (A-CSI) feedback scheduling for cross-carriers. Certain aspects provide a method for wireless communication. The method generally includes receiving on a first component carrier (CC) signaling indicating an aperiodic channel state information (CSI) report request for a plurality of CCs; determining schedules for at least CSI reference signal (CSI-RS) transmissions on the CCs based on the received signaling; monitoring CSI-RS transmissions on the CCs according to the determined schedules; and reporting CSI feedback based on CSI-RS measurements of the CSI-RS transmissions.

公开(公告)号：US20210067995A1

公开(公告)日：2021-03-04

申请号：US16963644

申请日：2018-01-23

Applicant: Chenxi HAO ,  Liangming WU ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Wanshi CHEN ,  QUALCOMM INCORPORATED

Inventor： Chenxi HAO ,  Liangming WU ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Wanshi CHEN

IPC: H04W24/10 ,  H04L5/00

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for generating and reporting CSI.

公开(公告)号：US20210051509A1

公开(公告)日：2021-02-18

申请号：US17044207

申请日：2019-04-02

Applicant: Liangming WU ,  Yu ZHANG ,  Yi HUANG ,  Chenxi HAO ,  Wanshi CHEN ,  QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG ,  Yi HUANG ,  Chenxi HAO ,  Wanshi CHEN

IPC: H04W24/10 ,  H04W72/12 ,  H04L1/18 ,  H04B7/06 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for collision handling for channel state information (CSI) reporting on a physical uplink shared channel (PUSCH). A method for wireless communications by a user equipment (UE) is provided. The method generally includes receiving scheduling for at least one CSI reporting transmission and at least one uplink transmission in a same slot. The UE determines to multiplex the at least one CSI and the at least one uplink transmission in the slot or to drop the at least one CSI or the at least one uplink transmission in the slot. The UE transmits in the slot at least one of: the at least one CSI transmission or the at least one uplink transmission based on the determination.