公开(公告)号：US20200067576A1

公开(公告)日：2020-02-27

申请号：US16673795

申请日：2019-11-04

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Yu Zhang ,  Jilei Hou

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0456

Abstract: In an aspect, a method of wireless communication includes transmitting first reference signals from a base station using a first set of antenna ports, and receiving first feedback information at the base station from a user equipment (UE). The first feedback information may be associated with the first reference signals. The method includes configuring a first precoder based on the first feedback information, and transmitting second reference signals to the UE based on the configuration of the first precoder. The method includes receiving second feedback information at the base station from the UE. The second feedback information may be associated with the second reference signals. The method includes configuring a second precoder based on the second feedback information.

公开(公告)号：US20200036477A1

公开(公告)日：2020-01-30

申请号：US16493364

申请日：2018-04-18

Applicant: Changlong XU ,  Jian LI ,  Chao WEI ,  Jing JIANG ,  Jilei HOU ,  Qualcomm Incorporated

Inventor： Changlong Xu ,  Jian Li ,  Chao Wei ,  Jing Jiang ,  Jilei Hou

IPC: H04L1/00 ,  H04B7/26 ,  H03M13/09 ,  H03M13/13 ,  G06F9/30 ,  H04W40/02

Abstract: Methods, systems, and devices for wireless communication are described for dynamic frozen bits of polar codes for early termination and performance improvement. A wireless device may receive a signal comprising a codeword encoded using a polar code. The wireless device may perform decoding of the codeword including at least: parity check of a first subset of decoding paths for making a decision on early termination of decoding of the codeword based on dynamic frozen bits, and generating path metrics for a second subset of the decoding paths that each pass the parity check based on the dynamic frozen bits, and performing error detection on a bit sequence corresponding to one of the second subset of the decoding paths based at part on error detection bits and the generated path metrics. The wireless device may process the information bits based on a result of the decoding.

公开(公告)号：US10404413B2

公开(公告)日：2019-09-03

申请号：US15942261

申请日：2018-03-30

Applicant: QUALCOMM Incorporated

Inventor： Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou

IPC: H03M13/00 ,  H04L1/00 ,  H03M13/29 ,  H03M13/13 ,  H03M13/27

Abstract: Aspects of the disclosure relate to wireless communication devices configured to encode information blocks to produce code blocks and interleave the code blocks utilizing an interleaver including a plurality of rows and a plurality of columns, where the number of columns of the interleaver varies between the rows. In some examples, the interleaver includes a right isosceles triangle-shaped matrix of rows and columns. In other examples, the interleaver includes a trapezoid-shaped matrix of rows and columns.

公开(公告)号：US10244512B2

公开(公告)日：2019-03-26

申请号：US15926385

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Neng Wang ,  Peng Cheng ,  Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Jilei Hou

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/22 ,  H04L1/00 ,  H04W72/02 ,  H04W72/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives, by a user equipment (UE) during a first subframe, an indication of a dynamic uplink/downlink (UL/DL) subframe configuration. The apparatus determines an uplink hybrid automatic repeat request (HARQ) timing based on an uplink reference subframe configuration and at least one of the dynamic UL/DL subframe configuration or a downlink reference subframe configuration. The apparatus selects an uplink subframe for communication based on the determined uplink HARQ timing.

公开(公告)号：US10181888B2

公开(公告)日：2019-01-15

申请号：US15504232

申请日：2014-09-28

Applicant: QUALCOMM INCORPORATED

Inventor： Chao Wei ,  Yu Zhang ,  Jilei Hou

IPC: H04B7/06 ,  H04B7/0456

Abstract: Methods and corresponding apparatuses for wireless communication are disclosed. The method for wireless communication includes dividing a two-dimensional antenna array to a plurality of sub-arrays, mapping the two-dimensional antenna array into a one-dimensional vertical channel state information reference signal (CSI-RS) port array for receiving elevation CSI feedback and a one-dimensional horizontal CSI-RS port array for receiving azimuth CSI feedback, and transmitting one or more elevation CSI-RS from the one-dimensional vertical CSI-RS port array and one or more azimuth CSI-RS from the one-dimensional horizontal CSI-RS port array. Methods and corresponding apparatuses for CSI feedback mechanism are also disclosed.

公开(公告)号：US20180294922A1

公开(公告)日：2018-10-11

申请号：US15942261

申请日：2018-03-30

Applicant: QUALCOMM Incorporated

Inventor： Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/27 ,  H03M13/29

CPC classification number: H04L1/0071 ,  H03M13/13 ,  H03M13/2707 ,  H03M13/2742 ,  H03M13/2757 ,  H03M13/296 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0061

Abstract: Aspects of the disclosure relate to wireless communication devices configured to encode information blocks to produce code blocks and interleave the code blocks utilizing an interleaver including a plurality of rows and a plurality of columns, where the number of columns of the interleaver varies between the rows. In some examples, the interleaver includes a right isosceles triangle-shaped matrix of rows and columns. In other examples, the interleaver includes a trapezoid-shaped matrix of rows and columns.

公开(公告)号：US10015782B2

公开(公告)日：2018-07-03

申请号：US15101556

申请日：2015-01-06

Applicant: QUALCOMM INCORPORATED

Inventor： Wanshi Chen ,  Chao Wei ,  Neng Wang ,  Hao Xu ,  Peter Gaal

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04L29/06 ,  H04B17/345 ,  H04B7/0413 ,  H04B7/06 ,  H04W24/10 ,  H04W74/08 ,  H04W28/06

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0626 ,  H04B17/345 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/0092 ,  H04L5/1469 ,  H04L69/22 ,  H04W12/00 ,  H04W24/00 ,  H04W24/10 ,  H04W28/06 ,  H04W36/00 ,  H04W48/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W74/0858

Abstract: Certain aspects of the present disclosure relate to techniques and methods for reporting channel state information (CSI) feedback, for example, for UEs capable of supporting evolved interference management traffic adaptation (eIMTA). In one aspect, a method generally includes receiving signaling of a first uplink/downlink (UL/DL) subframe configuration for communicating with a base station (BS), receiving signaling of at least one channel state information (CSI) reporting configuration indicating at least two subframe sets, where each subframe set is associated with an interference measurement resource (IMR) configuration, detecting a collision of CSI reporting for the at least two subframe sets in an uplink subframe, prioritizing one subframe set from the at least two subframe sets for CSI reporting in the uplink subframe, and reporting CSI in the uplink subframe based on the prioritization.

公开(公告)号：US09667331B2

公开(公告)日：2017-05-30

申请号：US15303453

申请日：2015-04-17

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal

IPC: H04B17/00 ,  H04B7/06 ,  H04J11/00 ,  H04W24/10 ,  H04L5/00 ,  H04W88/02 ,  H04L5/14 ,  H04W76/04

CPC classification number: H04B7/0626 ,  H04J11/0023 ,  H04L1/0026 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/14 ,  H04L27/32 ,  H04W24/10 ,  H04W76/27 ,  H04W76/28 ,  H04W88/02

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE determines a first CSI subframe set including a first set of subframes of a frame and a second CSI subframe set including a second set of subframes of the frame. Subframes in the first set of subframes are different than subframes in the second set of subframes. The UE determines a CSI reference subframe in one of the first CSI subframe set or the second CSI subframe set. The UE measures CSI in the CSI reference subframe. The UE receives an aperiodic CSI request in a triggering subframe in one of the first CSI subframe set or the second CSI subframe set. The triggering subframe is after the CSI reference subframe.

公开(公告)号：US12255841B2

公开(公告)日：2025-03-18

申请号：US17767378

申请日：2019-11-01

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Liangming Wu ,  Qiaoyu Li ,  Chao Wei ,  Hao Xu ,  Peter Gaal ,  Wanshi Chen

IPC: H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for using subband precoding for uplink transmissions. In some cases, a UE may transmit sounding reference signals (SRS) to a network entity, receive information indicating at least one of a set of one or more frequency domain (FD) bases and linear combination coefficients, determined based on the SRS transmission, determine subband precoding based at least in part on linear combinations of the FD bases based on the linear combination coefficients, and transmit a physical uplink shared channel (PUSCH) with the subband precoding.

公开(公告)号：US20250047445A1

公开(公告)日：2025-02-06

申请号：US18696271

申请日：2021-12-02

Applicant: QUALCOMM INCORPORATED

Inventor： Min Huang ,  Wanshi Chen ,  Peter Gaal ,  Chao Wei ,  Hao Xu

IPC: H04L5/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. Feedback based codebooks for reducing or eliminating interference between orbital angular momentum (OAM) based backhaul communications between a first network node and a second network node and access communications between the first network node and a user equipment (UE) are described. The first network node may transmit a message to a UE indicating a feedback codebook for a set of reference signals associated with OAM modes. The first network node may transmit the reference signals, where each reference signals may be associated with a respective OAM mode. The UE may generate and indicate in a feedback report to the first network node codewords corresponding to UE feedback for the received reference signals. The first network node may communicate with the UE via an access link and with the second network node via a backhaul link based on the feedback report.