公开(公告)号：US20200083987A1

公开(公告)日：2020-03-12

申请号：US16468622

申请日：2018-01-08

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

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

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

摘要： 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：US20200092041A1

公开(公告)日：2020-03-19

申请号：US16470881

申请日：2018-01-12

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

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

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

摘要： 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：US20210152187A1

公开(公告)日：2021-05-20

申请号：US16628209

申请日：2017-08-04

申请人： Jian LI ,  Changlong XU ,  Jing JIANG ,  Hao XU ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Jian LI ,  Changlong XU ,  Jing JIANG ,  Hao XU ,  Jilei HOU

IPC分类号： H03M13/27 ,  H03M13/00 ,  H03M13/15 ,  H03M13/29

摘要： 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. In some examples, the interleaver includes a right isosceles triangle-shaped matrix of rows and columns. In other examples, the interleaver includes a rectangle-shaped matrix of rows and columns.

公开(公告)号：US20190268022A1

公开(公告)日：2019-08-29

申请号：US16320038

申请日：2017-06-26

申请人： Changlong XU ,  Jian LI ,  Jilei HOU ,  Chao WEI ,  QUALCOMM INCORPORATED

发明人： Changlong XU ,  Jian LI ,  Jilei HOU ,  Chao WEI

IPC分类号： H03M13/13 ,  H03M13/35 ,  H04L1/00 ,  H04L1/18 ,  H04B17/336

摘要： 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：US20200187166A1

公开(公告)日：2020-06-11

申请号：US16336303

申请日：2017-07-11

申请人： Changlong XU ,  Jian LI ,  Chao WEI ,  Chong LI ,  Tingfang JI ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Changlong XU ,  Jian LI ,  Chao WEI ,  Chong LI ,  Tingfang JI ,  Jilei HOU

IPC分类号： H04W72/04 ,  H04L1/00

摘要： Various aspects of the disclosure relate to mapping different information to different sub-channels. For example, information for different users may be mapped to different Polar code sub-channels. In some aspects, the mapping may be unbalanced in that different information is mapped to different sub-channels according to the quality (e.g., in terms of error probability) of the sub-channels and a criterion associated with the information. For example, control information for users that are experiencing the worst channel quality (e.g., in a wireless communication channel) may be mapped to the Polar code sub-channels that have the best quality.

公开(公告)号：US20190296776A1

公开(公告)日：2019-09-26

申请号：US16317395

申请日：2017-06-12

申请人： Changlong XU ,  Jian LI ,  Chao WEI ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Changlong XU ,  Jian LI ,  Chao WEI ,  Jilei HOU

IPC分类号： H03M13/00 ,  H03M13/13

摘要： Various aspects of the disclosure relate to rate matching techniques for block encoding. In some aspects, a decision regarding whether to use repetition-based rate matching or puncture-based rate matching is made based on a block size of information being encoded. In some aspects, repetition-based rate matching uses a bit-reversal permutation technique.

公开(公告)号：US20200067530A1

公开(公告)日：2020-02-27

申请号：US16466270

申请日：2017-06-12

申请人： Changlong XU ,  Chao WEI ,  Jilei HOU ,  QUALCOMMIncorporated

发明人： Changlong XU ,  Chao WEI ,  Jilei HOU

IPC分类号： H03M13/13 ,  H03M13/09

摘要： Aspects of the disclosure relate to wireless communication systems configured to provide techniques for multiplexing dedicated control information for a plurality of users in a single information block and polar coding the information block to produce a polar code block of dedicated control information for transmission over a wireless air interface. The information block may further include group cyclic redundancy check (CRC) information for the information block and individual CRC information for each dedicated control information.

公开(公告)号：US20200052819A1

公开(公告)日：2020-02-13

申请号：US16344395

申请日：2017-06-22

申请人： Changlong XU ,  Jian LI ,  Joseph Binamira SORIAGA ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Changlong XU ,  Jian LI ,  Joseph Binamira SORIAGA ,  Jilei HOU

IPC分类号： H04L1/00 ,  H04L1/20

摘要： 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 punctured encoded data fails, the device's second transmission (e.g., in response to a NAK) may involve transmitting the punctured bits. 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 at least some of the encoded data. In some aspects, the puncturing may be performed according to a puncture pattern that is generated based on bit error probabilities of bit positions for encoded data.

公开(公告)号：US20160198450A1

公开(公告)日：2016-07-07

申请号：US14916173

申请日：2013-11-01

申请人： Chao WEI ,  Neng WANG ,  Peng CHENG ,  Wanshi CHEN ,  Hao XU ,  Peter GAAL ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Chao WEI ,  Neng WANG ,  Peng CHENG ,  Wanshi CHEN ,  Hao XU ,  Peter GAAL ,  Jilei HOU

IPC分类号： H04W72/04 ,  H04L5/22 ,  H04L1/18 ,  H04W72/14

CPC分类号： H04W72/0406 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/22 ,  H04W72/02 ,  H04W72/14

摘要： 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.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品。 该设备在第一子帧期间由用户设备（UE）接收动态上行链路/下行链路（UL / DL）子帧配置的指示。 该装置基于上行链路参考子帧配置和动态UL / DL子帧配置或下行链路参考子帧配置中的至少一个来确定上行链路混合自动重传请求（HARQ）定时。 该装置基于所确定的上行链路HARQ定时来选择用于通信的上行链路子帧。

公开(公告)号：US20160050002A1

公开(公告)日：2016-02-18

申请号：US14784165

申请日：2013-10-14

申请人： Chao WEI ,  Peng CHENG ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Chao Wei ,  Peng CHENG ,  Jilei HOU

IPC分类号： H04B7/06 ,  H04B7/04 ,  H04W72/04

CPC分类号： H04B7/0617 ,  H04B7/0469 ,  H04B7/0478 ,  H04W72/04 ,  H04W88/02

摘要： Flexible beamforming is disclosed in which a base station receives feedback from a user equipment (UE), in which the feedback is related to one or more reference signals transmitted by the base station. The base station will obtain a tilt adjustment based, at least in part, on the feedback and generate an elevation precoding vector based using the feed-back. Using the tilt adjustment and elevation precoding vector, the base station may then perform elevation beamforming with an antenna array of the base station for the UE.

摘要翻译： 公开了灵活的波束成形，其中基站从用户设备（UE）接收反馈，其中反馈与由基站发送的一个或多个参考信号有关。 基站将至少部分地基于反馈获得倾斜调整，并且基于反馈生成升高预编码向量。 使用倾斜调整和仰角预编码矢量，基站然后可以执行用于UE的基站的天线阵列的仰角波束成形。