公开(公告)号：US12283973B2

公开(公告)日：2025-04-22

申请号：US18461809

申请日：2023-09-06

Applicant: QUALCOMM Incorporated

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

IPC: H03M13/00 ,  H03M13/13 ,  H03M13/35 ,  H04B17/336 ,  H04L1/00 ,  H04L1/1812

Abstract: Methods and apparatus for constructing polar codes are provided. A transmitter determines at least one set of parameters corresponding to data to be transmitted, and a set of sorting indices corresponding to bits of the data to be transmitted based on the set of parameters, the set of sorting indices indicating a position set of the bits to be transmitted. The transmitter polar encodes the data based at least on the set of parameters and the set of sorting indices to generate a coded block of the data, and transmits the coded block of the data.

公开(公告)号：US12166547B2

公开(公告)日：2024-12-10

申请号：US16077272

申请日：2017-03-10

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Bo Chen ,  Liangming Wu ,  Jilei Hou

IPC: H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: Enhanced hybrid channel state information (CSI) reference signal (CSI-RS) for full dimension multiple input, multiple output (FD-MIMO) is discussed in which a base station configures a first CSI-RS resource for non-precoded CSI-RS and a second CSI-RS resource for beamformed CSI-RS. The first and second CSI-RS resources are associated with the same CSI process in a hybrid CSI-RS operation. The UE provides a first CSI report including a first rank and precoding matrix indicator (PMI) based on measurement of the non-precoded CSI-RS. The base station may use this first CSI process. CSI report for the beamforming of the beamformed CSI-RS. The UE further provides a second CSI report including a second rank, second PMI, and CQI based on measurement of the beamformed CSI-RS. Additional aspects may provide for a base station to aggregate multiple two-port CSI-RS resource configurations into a single multiport CSI-RS resource configuration that may be dynamically shared between different UEs.

公开(公告)号：US12131258B2

公开(公告)日：2024-10-29

申请号：US17030315

申请日：2020-09-23

Applicant: QUALCOMM Incorporated

Inventor： Yadong Lu ,  Ying Wang ,  Tijmen Pieter Frederik Blankevoort ,  Christos Louizos ,  Matthias Reisser ,  Jilei Hou

IPC: G06N3/082 ,  G06N3/04 ,  G06N3/063

CPC classification number: G06N3/082 ,  G06N3/04 ,  G06N3/063

Abstract: A method for compressing a deep neural network includes determining a pruning ratio for a channel and a mixed-precision quantization bit-width based on an operational budget of a device implementing the deep neural network. The method further includes quantizing a weight parameter of the deep neural network and/or an activation parameter of the deep neural network based on the quantization bit-width. The method also includes pruning the channel of the deep neural network based on the pruning ratio.

公开(公告)号：US12034534B2

公开(公告)日：2024-07-09

申请号：US18187255

申请日：2023-03-21

Applicant: QUALCOMM Incorporated

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

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

CPC classification number: H04L1/0058 ,  G06F9/30029 ,  H03M13/098 ,  H03M13/13 ,  H04B7/2668 ,  H04L1/0046 ,  H04L1/0052 ,  H04L1/0061 ,  H04L1/0063 ,  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：US11677448B2

公开(公告)日：2023-06-13

申请号：US15549597

申请日：2016-02-09

Applicant: QUALCOMM INCORPORATED

Inventor： Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Guodong Li ,  Jilei Hou

IPC: H04B7/0452 ,  H04B7/0456 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/0453

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04L5/0007 ,  H04L5/0021 ,  H04L5/0048 ,  H04L25/0242 ,  H04W72/0453 ,  H04W72/1289

Abstract: Certain aspects of the present disclosure support demodulation reference signal (DMRS) enhancement for higher order multi-user multiple-input multiple-output (MU-MIMO) communications. An example method generally includes determining a plurality of ports of a multi-dimensional array of transmit antennas and a number of spatial multiplexed layers for transmission to a plurality of user equipments (UEs), configuring a demodulation reference signal (DMRS) pattern by multiplexing the layers or the ports in the DMRS pattern, using an orthogonal cover code (OCC) and one or more code division multiplexing (CDM) groups, and transmitting DMRS symbols based on the configured DMRS pattern using the multiplexed layers and the ports.

公开(公告)号：US11657282B2

公开(公告)日：2023-05-23

申请号：US16571760

申请日：2019-09-16

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Jilei Hou

IPC: G06N3/04 ,  G06F17/15 ,  G06F17/16 ,  G06K9/62 ,  G06N3/08 ,  G06T7/70 ,  G06V40/10 ,  G06N3/084

CPC classification number: G06N3/0472 ,  G06F17/15 ,  G06F17/16 ,  G06K9/6262 ,  G06N3/04 ,  G06N3/08 ,  G06N3/084 ,  G06K9/6267 ,  G06T7/70 ,  G06T2207/20084 ,  G06V40/10

Abstract: Embodiments described herein relate to a method, comprising: receiving input data at a convolutional neural network (CNN) model; generating a factorized computation network comprising a plurality of connections between a first layer of the CNN model and a second layer of the CNN model, wherein: the factorized computation network comprises N inputs, the factorized computation network comprises M outputs, and the factorized computation network comprises at least one path from every input of the N inputs to every output of the M outputs; setting a connection weight for a plurality of connections in the factorized computation network to 1 so that a weight density for the factorized computation network is

公开(公告)号：US11283497B2

公开(公告)日：2022-03-22

申请号：US16599018

申请日：2019-10-10

Applicant: QUALCOMM Incorporated

Inventor： Yu Zhang ,  Chao Wei ,  Peng Cheng ,  Neng Wang ,  Jilei Hou

IPC: H04B7/0456 ,  H04L1/00 ,  H04W16/10 ,  H04L1/06 ,  H04L1/18 ,  H04B7/06 ,  H04B7/0452 ,  H04W16/28 ,  H04B7/0426

Abstract: Certain aspects of the present disclosure provide methods and apparatus for linear precoding in full-dimensional MIMO (FD-MIMO) systems. According to aspects, an eNB may compress a larger number of antenna elements to a smaller number of antenna ports. The eNB may use a port precoding matrix to transmit reference signals to a UE, receive feedback regarding CSI based on the reference signals, and transmit data to the UE, based on a mapping of multiple data layers and mapping of antenna ports to the physical antenna elements. Further, aspects include performing elevation beamforming by dynamically forming one or more vertical sectors based on UE feedback in the elevation domain.

公开(公告)号：US11177862B2

公开(公告)日：2021-11-16

申请号：US16088285

申请日：2017-05-10

Applicant: QUALCOMM Incorporated ,  Chao Wei ,  Yu Zhang ,  Bo Chen ,  Jilei Hou

Inventor： Chao Wei ,  Yu Zhang ,  Bo Chen ,  Jilei Hou

IPC: H04W4/00 ,  H04B7/0452 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.

公开(公告)号：US11171672B2

公开(公告)日：2021-11-09

申请号：US16471388

申请日：2018-01-16

Applicant: Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou ,  Jing Jiang ,  QUALCOMM Incorporated

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

IPC: H03M13/35 ,  H03M7/30 ,  H03M13/09 ,  H03M13/13 ,  H03M13/29 ,  H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for dynamic frozen polar codes, for example, for control channels. An exemplary method may be performed at the encoder. The method generally includes encoding a stream of bits using a polar code. The encoding includes selecting a first set of channel indices for encoding information bits. The encoding includes selecting a second set of the channel indices smaller than a channel index for a first information bit for encoding fixed frozen bits. The encoding includes selecting remaining channel indices for dynamic frozen (PCF) bits having values based on one or more of the information bits. The method includes transmitting the encoded stream of bits.

公开(公告)号：US10944517B2

公开(公告)日：2021-03-09

申请号：US16078480

申请日：2016-11-04

Applicant: Jian Li ,  Changlong Xu ,  Jilei Hou ,  Neng Wang ,  Chao Wei ,  QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H03M13/13 ,  H03M13/29 ,  H04L1/00 ,  H04L1/20 ,  H03M13/00 ,  H04W72/04

Abstract: For communication utilizing polar codes, a hybrid automatic repeat request algorithm utilizing incremental redundancy (HARQ-IR) may provide increased throughput by including new data, not based on an original transmission, in a HARQ retransmission. The number of retransmitted bits and new information bits in each HARQ retransmission may be controlled in order to manage a tradeoff between increased throughput and a decreased block error rate (BLER).