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。

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：US20160065282A1

公开(公告)日：2016-03-03

申请号：US14786854

申请日：2014-05-28

申请人： Yu ZHANG ,  Wei CHAO ,  Peng CHENG ,  Neng WANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Yu ZHANG ,  Wei CHAO ,  Peng CHENG ,  Neng WANG ,  Jilei HOU

IPC分类号： H04B7/04 ,  H04W16/10 ,  H04L1/00

摘要： 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.

摘要翻译： 本公开的某些方面提供了在全维MIMO（FD-MIMO）系统中用于线性预编码的方法和装置。 根据方面，eNB可以将较大数量的天线元件压缩到较少数量的天线端口。 eNB可以使用端口预编码矩阵来向UE发送参考信号，基于参考信号接收关于CSI的反馈，并且基于多个数据层的映射以及将天线端口映射到物理天线来向UE发送数据 元素。 此外，方面包括通过基于仰角域中的UE反馈动态地形成一个或多个垂直扇区来执行提升波束成形。

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：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：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：US20190036579A1

公开(公告)日：2019-01-31

申请号：US16077272

申请日：2017-03-10

申请人： Chao WEI ,  Bo CHEN ,  Liangming WU ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Chao WEI ,  Bo CHEN ,  Liangming WU ,  Jilei HOU

IPC分类号： H04B7/0456 ,  H04B7/06 ,  H04L5/00

摘要： 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：US20180026684A1

公开(公告)日：2018-01-25

申请号：US15549597

申请日：2016-02-09

申请人： Chao WEI ,  Wanshi CHEN ,  Peter GAAL ,  Guodong LI ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Chao WEI ,  Wanshi CHEN ,  Peter GAAL ,  Guodong LI ,  Jilei HOU

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

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

摘要： 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：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.