公开(公告)号：US20220416942A1

公开(公告)日：2022-12-29

申请号：US17929942

申请日：2022-09-06

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Chao WEI ,  Jing JIANG ,  Jilei HOU ,  Yang YANG ,  Gabi SARKIS

IPC: H04L1/00 ,  H04L1/08

Abstract: Aspects of the disclosure relate to rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a mother code size (N) for transmitting an encoded stream of bits based, at least in part, on a minimum supported code rate for transmitting the encoded stream of bits (Rmin), a control information size of the encoded stream of bits (K), a number of coded bits for transmission (E), and a maximum mother code size (Nmax), encoding a stream of bits using a polar code of size (N, K) and storing the encoded stream of bits in a circular buffer, and performing rate-matching on the stored encoded stream of bits based, at least in part, on a comparison among the mother code size (N), the control information size of the encoded stream of bits (K), and the number of coded bits for transmission (E).

公开(公告)号：US20210089922A1

公开(公告)日：2021-03-25

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: G06N3/08 ,  G06N3/063 ,  G06N3/04

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：US20210019593A1

公开(公告)日：2021-01-21

申请号：US16932496

申请日：2020-07-17

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay LIN ,  Jin Won LEE ,  Jilei HOU

IPC: G06N3/04 ,  G06F11/30 ,  G06K9/62 ,  G06F17/15

Abstract: Certain aspects of the present disclosure provide techniques for performing piecewise pointwise convolution, comprising: performing a first piecewise pointwise convolution on a first subset of data received via a first branch input at a piecewise pointwise convolution layer of a convolutional neural network (CNN) model; performing a second piecewise pointwise convolution on a second subset of data received via a second branch input at the piecewise pointwise convolution layer; determining a piecewise pointwise convolution output by summing a result of the first piecewise pointwise convolution and a result of the second piecewise pointwise convolution; and providing the piecewise pointwise convolution output to a second layer of the CNN model.

公开(公告)号：US20200235854A1

公开(公告)日：2020-07-23

申请号：US16831263

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Joseph Binamira SORIAGA ,  Jilei HOU

IPC: H04L1/00 ,  H04L12/26 ,  H04L29/08

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for polar coding control information together with combined cyclic redundancy check (CRC) information. The combined CRC information may include a number of CRC bits selected to jointly decode and verify the control information to reduce the CRC overhead.

公开(公告)号：US20200092041A1

公开(公告)日：2020-03-19

申请号：US16470881

申请日：2018-01-12

Applicant: Hari SANKAR ,  Gabi SARKIS ,  Changlong XU ,  Alexei GOROKHOV ,  Jing JIANG ,  Joseph Binamira SORIAGA ,  Jilei HOU ,  QUALCOMM Incorporated

Inventor： Hari SANKAR ,  Gabi SARKIS ,  Changlong XU ,  Alexei GOROKHOV ,  Jing JIANG ,  Joseph Binamira SORIAGA ,  Jilei HOU

IPC: H04L1/00 ,  H04L5/00 ,  H03M13/00 ,  H03M13/13

Abstract: The disclosure relates in some aspects to information encoding. Information encoding may involve puncturing bits of a codeword or repeating bits of a codeword. The disclosure relates in some aspects to selecting a puncturing or repetition pattern. In some aspects, a puncture pattern for data encoding is selected based on a criterion that the output and the repetition input of an XOR are not erased. In some aspects, a repetition pattern for data encoding is selected based on a criterion that repetition not be applied for the output and the repetition input of an XOR.

公开(公告)号：US20200083987A1

公开(公告)日：2020-03-12

申请号：US16468622

申请日：2018-01-08

Applicant: Changlong XU ,  Chao WEI ,  Jing JIANG ,  Gaojin WU ,  Hari SANKAR ,  Jilei HOU ,  QUALCOMM Incorporated

Inventor： Changlong XU ,  Chao WEI ,  Jing JIANG ,  Gaojin WU ,  Hari SANKAR ,  Jilei HOU

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

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching control channels using polar codes. An exemplary method generally includes encoding a stream of bits using a polar code, determining a size of a circular buffer for storing the encoded stream of bits based, at least in part, on a minimum supported code rate and a control information size, and performing rate-matching on stored encoded stream of bits based, at least in part, on a mother code size, N, and a number of coded bits for transmission, E.

公开(公告)号：US20190215105A1

公开(公告)日：2019-07-11

申请号：US16336250

申请日：2017-06-22

Applicant: Changlong XU ,  Jian LI ,  Chao WEI ,  Chong LI ,  Joseph Binamina SORIAGA ,  Jelei HOU ,  QUALCOMM Incorporated

Inventor： Changlong XU ,  Jian Li ,  Chao WEI ,  Chong LI ,  Joseph Binamira SORIAGA ,  Jilei HOU

IPC: H04L1/18 ,  H04L1/00 ,  H03M13/13 ,  H04B17/336

CPC classification number: H04L1/1819 ,  H03M13/13 ,  H04B17/336 ,  H04L1/00 ,  H04L1/0063 ,  H04L1/0068

Abstract: Various aspects of the disclosure relate to retransmission techniques for communication of information (e.g., for wireless communication). In some aspects, if a device's first transmission including encoded data and parity information (subject to puncture) fails, the device's retransmission (e.g., in response to a NAK) involves transmitting the parity information that was punctured. In some aspects, the coding rate used for encoding the data for the first transmission is selected to meet an error rate (e.g., a block error rate) for the second transmission. The second transmission may also include repetition information that includes the encoded data. The repetition information could also include at least a portion of the encoded parity information.

公开(公告)号：US20190052418A1

公开(公告)日：2019-02-14

申请号：US16078480

申请日：2016-11-04

Applicant: QUALCOMM Incorporated

Inventor： Jian LI ,  Changlong XU ,  Jilei HOU ,  Neng WANG ,  Chao WEI

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/20 ,  H03M13/29

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).

公开(公告)号：US20180278365A1

公开(公告)日：2018-09-27

申请号：US15781671

申请日：2015-12-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaohui LIU ,  Neng WANG ,  Yu ZHANG ,  Jilei HOU

IPC: H04L1/00 ,  H04L27/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/18 ,  H04L1/1841 ,  H04L1/1893 ,  H04L27/0012

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for flexible resource mapping and modulation and coding scheme (MCS) determination in wireless communication systems. According to certain aspects, a method for wireless communications that may be performed by a transmitter is provided. The method generally includes determining MCSs to use for each of multiple portions of a transport block and transmitting the portions of the transport block according to the determined MCSs to a wireless node. Flexible MCS and resource mapping determination may improve demodulation performance for code blocks that are far from pilots.

公开(公告)号：US20180213517A1

公开(公告)日：2018-07-26

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 ,  H04W72/14 ,  H04L5/22 ,  H04L1/00 ,  H04L1/18 ,  H04W72/02

CPC classification number: H04W72/0406 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1858 ,  H04L1/1887 ,  H04L1/1896 ,  H04L5/22 ,  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.