公开(公告)号：US20210306102A1

公开(公告)日：2021-09-30

申请号：US17268867

申请日：2019-08-05

Applicant: Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Chenxi HAO ,  Liangming WU ,  Hao XU ,  QUALCOMM Incorporated

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

IPC: H04L1/16 ,  H04L1/18 ,  H04L1/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a first decoding result for a plurality of downlink control channels of a diversity enhancement based non-coherent joint transmission communication and a second decoding result for a plurality of data channels corresponding to the plurality of downlink control channels; and selectively provide feedback regarding the first decoding result and feedback regarding the second decoding result, the feedback regarding the first decoding result indicating whether reception of one or more downlink control channels, of the plurality of downlink control channels, is successful, and the feedback regarding the second decoding result indicating whether decoding of a codeword of the plurality of data channels is successful. Numerous other aspects are provided.

公开(公告)号：US20210297214A1

公开(公告)日：2021-09-23

申请号：US17260183

申请日：2019-08-02

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

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

IPC: H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for signaling quasi-coloration (QCL) information for demodulation reference signals (DM-RS) associated with multiple transmission-reception points (multi-TRP). An example method generally includes generating quasi-colocation (QCL) information indicating a first QCL assumption for a first group of demodulation reference signal (DM-RS) ports and a second QCL assumption for a second group of DM-RS ports; and transmitting the QCL information to at least one user equipment (UE) for use in processing one or more transmission associated with at least one of the first group of DM-RS ports and the second group of DM-RS ports.

公开(公告)号：US20210218523A1

公开(公告)日：2021-07-15

申请号：US17056209

申请日：2019-06-20

Applicant: Qualcomm Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL ,  Tao LUO

IPC: H04L5/00

Abstract: 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.

公开(公告)号：US20210211249A1

公开(公告)日：2021-07-08

申请号：US15733764

申请日：2019-04-17

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00

Abstract: 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.

公开(公告)号：US20210152290A1

公开(公告)日：2021-05-20

申请号：US17045371

申请日：2019-04-04

Applicant: Jian LI ,  Changlong XU ,  Jing JIANG ,  Kai CHEN ,  Liangming WU ,  Hao XU ,  Qualcomm Incorporated

Inventor： Jian LI ,  Changlong XU ,  Jing JIANG ,  Kai CHEN ,  Liangming WU ,  Hao XU

IPC: H04L1/18 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, devices (e.g., base stations, user equipment (UEs), etc.) may utilize polar coding along with hybrid automatic repeat request (HARQ) techniques. In these systems, a device may encode bits for transmission by mapping information and parity check bits to a first set of polarized bit channels of a polar code. If this transmission is not successfully received at a decoding device, the encoding device may generate a HARQ retransmission. The device may copy information bits to a second set of polarized bit channels of a second polar code containing the first polar code and may assign parity check bits to the second set of bit channels for the copied information bits. These additional parity check bits for the repeated information bits may increase transmission reliability and may support improved early termination at the decoding device.

公开(公告)号：US20210099213A1

公开(公告)日：2021-04-01

申请号：US17041052

申请日：2019-04-02

Applicant: Kai CHEN ,  Changlong XU ,  Liangming WU ,  Hao XU ,  Qualcomm incorporated

Inventor： Kai Chen ,  Changlong XU ,  Liangming WU ,  Hao XU

IPC: H04B7/06 ,  H03M13/13 ,  H04B17/336

Abstract: A device may generate a first set of encoded bits by mapping an information bit vector to a first set of polarized bit channels of a first polar code according to a first bit index set, the first bit index set being based on respective bit channel reliabilities of the first set of polarized bit channels. The device may transmit the first set of encoded bits to another device over a wireless channel The device may receive an indication that a decoding of the first set of encoded bits was unsuccessful. The device may generate a second set of encoded bits by mapping a repetition of at least one bit to at least one bit channel of a second set of polarized bit channels of a second polar code according to a second bit index set. The device may transmit the second set of encoded bits to the other device.

公开(公告)号：US20210083795A1

公开(公告)日：2021-03-18

申请号：US16772128

申请日：2019-01-10

Applicant: Kai CHEN ,  Liangming WU ,  Hao XU ,  Changlong XU ,  QUALCOMM Incorporated

Inventor： Kai CHEN ,  Liangming WU ,  Changlong XU ,  Hao XU

IPC: H04L1/00 ,  H04B7/0413

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for channel-war polar code construction.

公开(公告)号：US20250106857A1

公开(公告)日：2025-03-27

申请号：US18730885

申请日：2022-03-25

Applicant: QUALCOMM Incorporated

Inventor： Jian LI ,  Liangming WU ,  Changlong XU ,  Jing JIANG ,  Kangqi LIU ,  Wei YANG ,  Hobin KIM ,  Hari SANKAR ,  Hao XU

IPC: H04W72/23 ,  H04L27/26

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include monitoring a first set of physical downlink control channel (PDCCH) candidate resources for a PDCCH communication from a network unit, receiving, from the network unit, a plurality of demodulation reference signals (DMRSs), and decoding, based on a metric associated with the plurality of demodulation reference signals (DMRSs) satisfying a threshold, the PDCCH communication.

公开(公告)号：US20250102654A1

公开(公告)日：2025-03-27

申请号：US18728272

申请日：2022-02-25

Applicant: QUALCOMM Incorporated

Inventor： Jing DAI ,  Min HUANG ,  Chao WEI ,  Chenxi HAO ,  Liangming WU ,  Mingxi YIN ,  Hao XU

IPC: G01S13/00 ,  G01S7/00 ,  G01S13/02 ,  G01S13/42 ,  H01Q25/00

Abstract: Disclosed are techniques for radio frequency (RF) sensing. In an aspect, a network entity (e.g., base station or road-side unit) may perform RF sensing in a first mode for sensing a horizontal angle using horizontal multiple input, multiple output (MIMO) radar with vertical beamforming, in which a two-dimensional MIMO antenna array is configured into a plurality of vertical columns, each column comprising a plurality of antenna elements configured to transmit as a phased array, each column transmitting a different orthogonal signal from the other columns. The network entity may perform RF sensing in a second mode for sensing a vertical angle using vertical MIMO radar with horizontal beamforming, in which the MIMO antenna array is configured into a plurality of horizontal rows, each row comprising a plurality of antenna elements configured to transmit as a phased array, each row transmitting a different orthogonal signal from the other rows.

公开(公告)号：US20250096969A1

公开(公告)日：2025-03-20

申请号：US18728047

申请日：2022-04-01

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Jing DAI ,  Wei XI ,  Wanshi CHEN ,  Peter GAAL ,  Hao XU

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. The method may include a first network node receiving a configuration message for a report by the first network node of parameters for a temporal domain precoder. The configuration message may indicate a range of Doppler frequencies, a resolution associated with the range of Doppler frequencies, or a quantity of the parameters to be reported. The first network node may estimate a communications channel and select one or more bins within the range of Doppler frequencies based on the channel estimation. For each selected bin, the first network node may determine a corresponding discrete Fourier transform (DFT) vector and transmit a report indicating the corresponding DFT vector.